大學英語四級閱讀從句
大學英語四級閱讀真題長難句型分析
引導語：下面我就給大家帶來大學英語四級閱讀真題長難句型分析，謝謝您的閱讀，祝您閱讀愉快。
長難句一
Although some of the more ambitious programs require new investments in servers and networks to support collaborative software, most distance learning courses can run on existing or minimally upgraded ( 升級) systems. (07.12 Passage 1)
分析主幹：courses can run (on...)
Although 引導讓步狀語從句。investment in...表示“在......方面的投資”。不定式to support... 是賓語investment 的補足語，“項目需要投資來支持相關軟體”(因為)support 的邏輯主語不是programs 而是investment，所以該不定式應該是補語，而非目的狀語)。譯文：雖然一些規模更大的課程需要斥資增加新的伺服器、擴建網路來支持配套的軟體，但大部分遠程教育課程可以在現有的或稍加升級的系統上運行。
長難句二
While many good and useful claims are being made, it is clear there is a long way to go in ensuring shoppers are adequately informed about the environmental impact of the procts they buy. (05.6 Passage 2)
分析主幹：it is clear that...
句首的While 引導讓步狀語從句，“盡管”......。it is clear......中，it 是形式主語，省略連接詞that 的從句there is...才是句子的真正主語。in ensuring...是there be 句型的狀語成分，“在確保......方面”。ensuring 後面接的是省略that 的賓語從句。
譯文：雖然有許多好而有用的聲明，但是，很明顯，要確保購買者完全知曉所購產品對環境的影響還需要很長的時間。
長難句三
They only come in when a friend drops dead on the golf course and they think, "Geez, if it could happen to him,..."(08.12 Passage 1)
主幹：They only come in
1.when引導時間狀語從句，而且引導兩個並列的從句：a friend drops dead...以及they think...。引號中的是直接引語，作think的賓語。
2.本句在理解上的一個難點是，they think究竟是與they come in並列還是與a friend drops dead並列。從語言形式上看，兩種理解都可以;但從語義邏輯上看，應該是“他們只有在想到...的時候才來”，把they think歸到時間狀語從句中更合理。
譯文：只有當一位朋友在高爾夫球場猝死時，他們才來看醫生。他們會想到：“哎呀，如果這樣的事能發生在他身上，...”
長難句四
Sometimes, when I was pushed into an argument on left brain versus (相對於) right brain, or nature versus nurture (培育), I would instantly fight fiercely on my behalf and all womankind. (07.6 Passage 1)
分析主幹：I would fight...
when 引導時間狀語從句。本句理解上的難點不在語法結構，而在語言本身所表達的'內容。was pushed into...表明作者不是主動參與這類爭論的。an argument on...“在......方面的爭論”。on my behalf “代表我自己，為我自己。”
譯文：有時候，當我與別人爭論左腦與右腦的問題，或者是先天天賦與後天培育的問題時，我會馬上站在我的立場以及所有女性同胞的立場上給予狠狠的反駁遙。
長難句五
As the words begin to flow, the ideas will come out from the shadows and let themselves be captured on your notepad or your screen. (07.6 Passage 2)
分析主幹：the ideas will come out and let themselves be captured...
句首的as 引導時間狀語從句。主句部分是復合謂語，有兩個由and 連接的並列謂語。
譯文：隨著話語開始流淌，思想也會逐漸明朗化，使自己呈現在你的筆記本或者屏幕上。
長難句六
While she awaits the outcome, the government has granted her permission to work here and she has returned to her job at Ben & Jerry‘s. (06.6 Passage 2)
分析主幹：the government has granted her permission and she has returned to...
While 引導時間狀語從句。本句主句是由and 連接兩個分句構成的並列句，兩個分句都用了現在完成時，與狀語從句的一般現在時對照來看，表明主句中的兩個動作都是在await 期間完成。grant 後面接了雙賓語，間接賓語是her，直接賓語是permission。
譯文：在她等待結果出來期間，政府給予她在美國的工作許可，她已經返回到她在Ben & Jerry 冰激凌連鎖店的工作崗位。
長難句七
Because I know very little about farm animals who use tools or angels who go to first grade, I had to accept the fact that I was co-opting (借用) my daughter‘s experience. (07.12 Passage 2)
分析主幹：I had to accept the fact...
Because 引導原因狀語從句。該從句用了know little about...結構，about 有兩個賓語。that 引導的從句是即farm animals 和angels，中間用or 連接，兩個名詞分別都有定語從句加以修飾。主句部分fact 帶有that 引導的同位語從句。
譯文：因為我對會使用工具的家畜和上一年級的天使一無所知，所以我得承認這樣的事實：我在借用我女兒的經驗。
長難句八
The I SO labeling standards ban vague or misleading claims on proct packaging, because terms such as “environmentally friendly”and “non-polluting”cannot be verified. (05.6 Passage 2)
分析主幹：院The standards ban claims本句只含一個原因狀語從句，結構上較為簡單。值得注意的是，句中的名詞片語大多含有修飾成分，如：The ISO labeling standards, claims on proct packaging, terms such as...。
譯文：ISO 標識標准禁止在商品的包裝上出現模糊的或會引起誤導的產品說明，因為我們無法證明類似“環保”、“無污染”等這樣的字樣。
長難句九
While the kinds of instruction offered in these programs will differ, distance learning usually signifies a course in which the instructors post syllabi (課程大綱), reading assignments, and scheles on Websites, and students send in their assignments by e-mail. (07.12 Passage 1)
分析主幹：distance learning signifies a course
1.句首While 引導狀語從句，有讓步、對比之意。
2.in which 引導定語從句修飾a course，該從句本身是and 連接兩個分句構成的並列結構，兩個分句分別講到有關老師和學生的情況。post... on Websites 結構中，post 含有3 個賓語。
譯文：雖然網路課程提供的教學形式會各不相同，但遠程學習通常都表現為這樣一種課程：教師將課程大綱、閱讀作業及課程進度安排在網站上公布，學生通過電子郵件提交作業。
長難句十
While you need to employ both to get to a finished result, they cannot work in parallel no matter how much we might like to think so. (07.6 Passage 2)
分析主幹：they cannot work...
While 引導讓步狀語從句，“盡管......”。從句中的employ 表示“採用”，不定式to get...作目的狀語。work in parallel“並行不悖地起作用”。no matter how 也引導讓步狀語從句，表示“無論多麼......”。
譯文“盡管要完成定稿這兩種思維都不可或缺，可是它們卻不能並行著參與寫作過程-----無論我們多麼認為原本如此。
長難句十一
Even people who have a physical disease or handicap (缺陷) may be "well,"in this new sense, if they make an effort to maintain the best possible health they can in the face of their physical limitations. (06.12 Passage 2)
分析主幹:people may be "well"
主句的主語people 有一個who 引導的定語從句修飾。if 引導條件狀語從句，從句中的they can 是省略形式的定語從句(相當於they can maintain)，修飾health。
譯文：在這種新的意義上來說，甚至有生理疾患或缺陷的人也是“健康的”，如果他們在面對身體缺陷時盡力去達到可能的最好健康狀況的話。
長難句十二
Even people who have a physical disease or handicap (缺陷) may be "well,"in this new sense, if they make an effort to maintain the best possible health they can in the face of their physical limitations. (06.12 Passage 2)
分析主幹:people may be "well"
主句的主語people 有一個who 引導的定語從句修飾。if 引導條件狀語從句，從句中的they can 是省略形式的定語從句(相當於they can maintain)，修飾health。
譯文：在這種新的意義上來說，甚至有生理疾患或缺陷的人也是“健康的”，如果他們在面對身體缺陷時盡力去達到可能的最好健康狀況的話。
長難句十三
Most likely, you will believe that this will take more time than you actually have and you will end up staring blankly at the page as the deadline draws near. (07.6 Passage 2)
分析主幹：you will believe that... and you will end up staring...
本句主句是and 連接兩個分句構成的並列句。前一個分句中，that 引導的從句作believe 的賓語，該賓語從句中又包含一個由than 引導的比較狀語從句。後一個分句中，謂語部分是end up doing 結構，staring...作主語補足語。
譯文：你很有可能會以為這樣加工整理素材會讓你時間不夠用，結果是最後隨著交稿日期的逐漸臨近，你將只是盯著稿件發呆。
長難句十四
Organized by the New York-based nonprofit Earth Pledge, the show inspired many top designers to work with sustainable fabrics for the first time. (09.6 Passage 1)
分析主幹：the show inspired designers
本句是簡單句。過去分詞短語Organized by...在句中作狀語，用以補充說明主語的背景信息。謂語部分用了inspire sb. to do 結構，不定式短語to work with...是賓語補足語。
譯文：這次時裝秀由總部位於紐約的非盈利組織Earth Pledge 主辦，激發了許多頂尖設計師第一次使用不破壞生態平衡的布料設計時裝。
長難句十五
This week Wal-Mart is set to announce a major initiative aimed at helping cotton farmers go organic: it will buy transitional (過渡型的) cotton at higher prices, thus helping to expand the supply of a key sustainable material. (09.6 Passage 1)
分析主幹：Wal-Mart is set to announce a (major) initiative: it will buy (transitional)cotton...
1.本句冒號後的內容是對前文initiative 的詳細闡述，相當於一個同位語從句。
2.冒號前的分句中，謂語動詞用了be set to do 結構，過去分詞短語aimed to...是initiatives 的後置定語，相當於一個定語從句。
3.冒號後的分句中，結構簡單，其中helping to...是現在分詞短語，作謂語動詞buy 的狀語，表示目的。
譯文：本周沃爾瑪超市准備出台一項重大舉措，目的在於幫助棉農種植有機棉：沃爾瑪將以更高的價格收購過渡型的棉花，以此幫助擴大一種重要有機原材料的供應。
長難句十六
Telling myself that I was merely an experienced writer guiding the young writer across the hall, I offered suggestions for characters, conflicts and endings for her tales. (07.12 Passage 2)
分析主幹：I offered suggestions (for...)
句首的Telling 是現在分詞，作狀語，表示伴隨動作：它帶了一個賓語從句，從句的表語writer 後接了一個作定語的現在分詞guiding...。主句部分的介詞for 帶有三個名詞作賓語，與suggestion 連用，表示“對.......的建議”。
譯文：我對自己說，我只是一個有經驗的作家，在指導身邊的一位年輕作家。我對她的那些故事中的人物堯沖突及結局提出建議。
長難句十七
Some expected emailers to be the biggest liars, reasoning that because deception makes people uncomfortable, the detachment (非直接接觸) of emailing would make it easier to lie. (06.6 Passage 1)
分析主幹：Some expected emailers to be the biggest liars...
不定式to be the biggest liars 在句中作賓語emailers 的補語。現在分詞reasoning在句中作伴隨狀語。that 引導從句作reasoning 的賓語。該賓語從句又包含一個原因狀語從句，由because 引導。
譯文：有些心理學家原以為人們在電子郵件中最容易撒謊，理由是：欺騙使人感到不舒服，所以電子郵件這種非直接接觸的媒介能讓人的謊言更容易說出口。
長難句十八
Consumers are being confused and misled by the hodge-podge ( 大雜燴) ofenvironmental claims made by household procts, according to a “green labeling” study published by Consumers International Friday. (05.6 Passage 2)
分析主幹：Consumers are being confused and misled by...
本句用了現在進行時的被動語態，含兩個謂語動詞confused 和misled。過去分詞短語made by...和published by...分別修飾前面的名詞claims 和study。
譯文：根據消費者國際組織在星期五發表的野綠色商標冶研究報告，消費者受到了各種家居產品五花八門的環保聲明的誤導，都被搞糊塗了。
長難句十九
I have also witnessed a player reacting to his opponent蒺s intentional and illegal blocking by deliberately hitting him with the ball as hard as he could ring the course of play. (05.6 Passage 1)
分析主幹：I have (also) witnessed a player reacting
reacting 在句中是現在分詞，作賓語a player 的補語;by... hitting...是reacting 的方式狀語，hitting 作介詞by 的賓語。as hard as he could 是比較結構，表示“盡力”。
譯文：還有一次我看到過一個球員在比賽中因為對方的一個有意犯規阻擋，而故意使足了力氣把球砸向對方。
長難句二十
Or perhaps someone will casually glance through your credit card purchases or cell phone bills to find out your shopping preferences or calling habits. (08.6 Passage 2)
分析主幹：someone will glance...
本句是個簡單句，謂語動詞glance 後接介詞短語through purchases or bills。不定式短語to find out...在句中作狀語，表示“無意中一瞥”的結果。
譯文：或者有人會隨意翻閱你的信用卡購物單或手機話費單，以此來了解你的購物喜好或通話習慣。
;⑵ 2019年6月大學英語四級閱讀理解訓練三篇
2019年6月大學英語四級閱配殲讀理解培猛沖訓練：夢
Of all the components of a good night's sleep, dreams seem to be least within our control. In dreams, a window opens into a world where logic is suspended and dead people speak. A century ago, Freud formulated his revolutionary theory that dreams were the disguised shadows of our unconscious desires and fears; by thelate 1970s, neurologists had switched to thinking of them as just "mental noise"-the random byprocts of the neural repair work that goes on ring sleep. Now researchers suspect that dreams are part of the mind's emotional thermostat, regulating moods while the brain is "off line." And one leading authority says that these intensely powerful mental events can be not only harnessed but actually brought under conscious control, to help us sleep and feel better. "It's your dream," says Rosalind Cartwright, chair of psychologyat Chicago's Medical Center, "if you don't like it, change it."
he link between dreams and emotions shows up among the patients in Cartwright's clinic. Most people seem to have more bad dreams early in the night, progressing toward happier ones before awakening, suggesting that they are working through negative feelings generated ring the day. Because our conscious mind is occupied with daily life we don't always think about the emotional significance of the day's events-until, it appears, we begin to dream.
知脊And this process need not be left to the unconscious. Cartwright believes one can exercise conscious control over recurring bad dreams. As soon as you awaken, identify what is upsetting about the dream. Visualizehow you would like it to end instead; the next time it occurs, try to wake up just enough to control its course. With much practice people can learn to, literally, do it in their sleep.
At the end of the day, there's probably little reason to pay attention to our dreams at all unless they keep us from sleeping or "we wake up in panic," Cartwright says. Terrorism, economic uncertainties and general feelings of insecurity have increased people's anxiety. Those suffering from persistent nightmares should seek help from a therapist. For the rest of us, the brain has its ways of working through bad feelings.Sleep-or rather dream-on it and you'll feel better in the morning.
練習題：
Choose correct answers to the question:
1.By saying that 「dreams are part of the mind's emotional thermostat," (Lines 4-5, Para. 1) the researchers mean that _______.
A.we can think logically in the dreams too
B.dreams can be brought under conscious control
C.dreams represent our unconscious desires and fears
D.dreams can help us keep our mood comparatively stable
2.What did Cartwright find in her clinic?
A.Most bad dreams were followed by happier ones.
B.Divorced couples usually have more bad dreams.
C.One』s dreaming process is related to his emotion.
D.People having negative feelings dream more often.
3.Cartwright believed with much practice，we can learn to _____.
A.control what dreams to dream
B.sleep well without any dreams
C.wake up in time to stop the bad dreams
D.identify what is upsetting about the dreams
4.The author points out that a person who has constant bad dreams should ______
A.learn to control his dreams
B.consult a doctor
C.sleep and dream on it
D.get rid of anxiety first
5.The author most probably thinks that controlling dreams is ______.
A.a good practice
B.a new discovery
C.helpful for everyone
D.not essential for everyone
參考答案及解析
1.[D] 詞義理解題。在第1段第4句中，逗號後面的regulating moods是對emotional thermostat的功能進行解釋說明，因此可以推斷出選項D正確。
2.[C] 事實細節題。最具干擾的是選項A，因為其陳述與第2段第2句的陳述有點相似,但是，此長句說的是大多數人上半夜做噩夢，之後都會做好夢，而不是像選項A中所說大多數噩夢之後是好夢。而且，根據本段第1 句，很明顯，選項C是這一句的近義替換。
3 [C] 推理判斷題。本題考査對代詞的理解。在第3段的最後一句中，代詞it應指上文說到的控制噩夢，及時醒來等做法，因此只有選項C涉及了其中一個做法。選項A太泛了，選項B和D在文中並無提及。
4.[B] 事實細節題。本題考查根據構詞法猜測詞義的能力。解題關鍵是推斷最後一段第3句中therapist的意義，在考綱詞彙表中，therapy是「治療」的意思，因此，therapist應該是專門負責某種治療的醫生，由此可見，選項B是對原文seek help from a therapist的近義替換。
5.[D] 觀點態度題。根據最後一句可以推斷作者認為如無必要，夢還是不要控制的好。做夢會讓你早上感覺舒服一些，因此本題應選D。
2019年6月大學英語四級閱讀理解訓練：機器人跳舞
The dancers stand motionless at their position and the room grows silent. But as the music starts, they began to move, bending, turning and waving their fans gracefully as they perform. a traditional Japanese dance. Yoshihiro Kuroki watches in silence, occasionally making notes. But as the dance ends, he beams with happiness. The performance has been flawless.
There have been many performances of traditional Japanese dances over the centuries, but this one is unique,because it is performed not by human dancers but by robots. And the performance takes place not in a dance studio but in a laboratory of Sony Corp.'s Entertainment Robot Co. in Shinagawa, Japan, where Kuroki isgeneral manager. He is the mastermind behind a series of even more capable humanoid entertainment robots,starting with the Sony Dream Robot, or SDR, in 1997, up to the current QRIO in 2003.
These delightful machines are only 58 cm tall, about the size of a newborn infant, weigh about 7 kg, and move with 38 degrees of freedom, each with its own servomotor(輔助馬達).
QRIO's predecessor, the SDR4X, announced in 2002, can walk, dance, sing, speak, recognize faces, and understand continuous speech. Each robot has two charge-coupled-device cameras to detect color and position andcan locate a colored ball, move toward it, and kick it into a goal. It also has contact sensors in severaljoints to avoid pinching real human fingers. Seeing the robot perform, it is difficult to remember that there is no sentience(知覺)behind those glass eyes.
練習題：
Choose correct answers to the question:
1.Which of the following is the most suitable title of this passage?
A.New Entertainment Robots Proced in Japan.
B.QRIO the Robot Dancers.
C.Robots Man's Best Friend.
D.An Extraordinary Performance in Sony's Lab.
2.Yoshihiro Kuroki ______.
A.is excited when the robots are performing a traditional Japanese dance
B.keeps silent because he is a little unsatisfied with the new proct
C.witnesses the creation of a series of entertainment robots
D.is an executive manager of Sony Corp.
3.Which aspect of the robots is NOT mentioned in the passage?
A.The vividness of their motion.
B.Their pleasant appearance.
C.Their smart designing principles.
D.Their communicative ability.
4.The Sony Dream Robot was___
A.the first human-like entertainment robot developed by the Sony Corp
B.as capable as the QRIO of speaking,dancing,singing and walking
C.largest among all the entertainment robot developed by the Sony Corp
D.the first entertainment robot sold at the market by the Sony Corp
5.The robot can locate colored balls by mens of ____
A.a charge-coupled device
B.two cameras
C.two contacts sensors
D.a digital detector
參考答案及解析
1.[A] 主旨大意題。標題需要既全面又突出地概括文章的主題。本文先是描述「舞蹈演員」，然後揭曉這是些「機器人」(第2段第1句)，接著對Sony公司的一些機器人產品進行詳細介紹。選項A比較全面地概括了文章內容。選項B、D只是涉及細節，不能全面地概括本文的內容。而C又過於籠統，不具有針對性。
2.[C] 事實細節題。選項C符合第2段最後一句「He is the mastermind behind a series of... robots...」。仔細閱讀有關的細節信息會發現,第1段第3句可幫助否定選項A。第1段最後兩句可幫助否定選項B。另外，根據第2段倒數第2句可否定選項D。
3.[D] 事實細節題。全文分四段，分別討論機器人三方面的特點：第1段和第2段描述機器人舞蹈演員栩栩如生的表演，即選項A;第3段描寫它們的外表，即選項B;第4段介紹它們巧妙的設計，即選項C;只有選項D是沒有提到的，故為答案。
4.[A] 推理判斷題。該句中的分詞結構「starting with...」表明the Sony Dream Robot是第一個人形娛樂機器人，因此選項A正確。文章在最後一段的第1句提到兩種能說話、跳舞的機器人，但沒有提到SDR是否和它們一樣，由此可否定選項B。在第3段討論機器人大小的時候也沒有提到SDR體型最大，因此選項C不正確。選項D在文中沒有討論到。
5.[B] 事實細節題。該句中「two…cameras to...」的結構表明這兩個攝像頭可以用於定位，所以選項B正確。選項A在該句中也有提到，但它只是攝像機的工作機制，而不是用於定位的裝置。選項C在下一句提到，但與題干提到的定位功能無關。選項D在文中並未提及。
2019年6月大學英語四級閱讀理解訓練：決定嬰兒性別
Henry III didn't know much about biology. He went through six wives back in the 1500s, looking for one whocould bear him a son. Scientists now know that it's the father's sperm, not the mother's egg, which determines whether a baby is a boy or a girl. And last week researchers at the Genetics and IVF Institute, a private fertility(生育能力)center in Virginia, announced a new technique that will allow parents to choose the sex of their baby-to-be, before it has even been conceived. The scientist used a tiny laser detector to measure the DNA in millions of sperm cells as they pass single file through a narrow tube, like cattle being herded through a corral(牲口欄). In a study published last week, "girl sperm," which has more DNA—the genetic material— in each cell, was collected, while "boy sperm" was discarded. And when purified girl sperm was used to impregnate(使受孕)a group of mothers, 15 of 17 resulting babies turned out to be girls.
The researchers say that "sex selection" can also double a mother's chance of having a son and can be usedto avoid genetic diseases that affect only one gender, such as hemophilia(血友病). But some experts, like New York University fertility specialist Dr. Jamie Grifo, worry that sex selection could lead to a kind ofin uteri(子宮)discrimination, especially in cultures where sons are considered superior to daughters. "It's valuing one gender' over another," Grifo says. "I don't think that's something we should be doing." So far, patients at the institute have been asking for both boys and girls, in order to "balance" their families. And some ethics experts say that's fine, as long as parents are just looking for a little gender variety. "If you have three boys, and you want a girl," says University of Texas reproctive-law professor John Robertson, "that's not gender bias at all."
練習題：
Choose correct answers to the question:
1.The DNA in the sperm cells can be measured ______.
A.in the same way how the cattle are herded
B.when they pass through a tube one behind the other
C.after they pass through a laser tube
D.when they are scanned by a laser detector all at a time
2.The gender of the baby is decided by ______.
A.the father's DNA
B.the mother's DNA
C.the father's sperm
D.the mother's egg
3.According to this passage, the practice of "sex selection" ______.
A.can help to prevent all genetic problems
B.is totally unacceptable to ethics experts
C.was already realized five hundred years ago
D.will benefit families with certain inheritable diseases
4.Girl sperm was preferred to boy sperm in the research most probably because____
A.girl sperm contains more genetic material
B.more mother want to have girl babies
C.girl sperm is healthier and more active
D.girl sperm is more easily purified
5.It can be concluded from the passage that author』s toward」sex selection」is____
A.negative
B.positive
C.neutral
D.favorable
參考答案及解析
1.[B] 推理判斷題。解答本題的關鍵在於推斷single file的意思。該句把精子通過試管的情形與牛群被趕入牲口圈的情形作對比，結合single一詞本身的意思，可以推斷single file是「一個接一個」的意思，只有選項B能表達這個意思，由此也可否定選項D。選項A最具干擾性，原句是把精子通過試管的情形比作牛群被趕人牲口圈的情形，而選項A說的是測定精子內DNA的方法與放牧的方法相同，顯然選項A只是引用了原文的某些詞語，但表達的意思與原文卻截然不同。
2.[C] 事實細節題。第1段第3句which引導的非限制性定語從句修飾的是the father's sperm，而不是插入語the mother』s egg,因此選項C正確。
3.[D] 推理判斷題。第2段第1句中的genetic暗示有些疾病是遺傳的，即如選項D所述。第2段第1句同時表明選項A的說法是不全面的。選項B與第2段最後兩句正好相反。第1段前兩句說明選項C是錯誤的。
4.[A] 事實細節題。第1段倒數第2句中的由which引導的定語從句表明選項A的敘述正確。
5.[C] 觀點態度題。文章第2段中作者給出了一些反對者和贊成者的觀點，但是沒有加以評論，可以看出作者的態度是中立的，故選項C正確。
⑶ 大學英語四級常用的語法
有關大學英語四級常用的語法精選
大學英語四級常用語法精選(12)
Ⅴ 連詞
並列連詞
表示意義的引申: and, both…and, not only…but(also), as well as, and …as well, neither…nor
表示選擇: or, either…or
表示轉折: but, while, whereas, yet, however/nevertheless(也可認為是副詞)
表示因果: for, so, therefore, hence
從屬連詞
表示時間: when, while, as, after, before, since, until(till), as soon as, once
表示原因: because, as, since, now that, seeing that
表示條件: if, unless, in case, provided(that), suppose, as long as, on condition (that),
表示其他關系: (al)though, than, as/so…as, lest, in order that, so…that
Ⅵ 定語從句
限制和非限制性定語從句: 限制性定語從句是名詞片語不可缺少的一個組成部分, 去掉了會造成病句或意義不明確; 非限制性定語從句屬於補充說明性質, 去掉了不會影響主要意義, 通常用逗號與它的先行詞分開.
The boys who wanted to play football were disappointed when it rained.
The boys, who wanted to play football, were disappointed when it rained.
如果定語從句的先行詞是專有名詞, 或是帶有形容詞性物主代詞(my, his, etc)或形容詞性指示代詞(this, that, etc)作限定詞, 其後的定語從句通常都是非限制性的:
Mary Smith, who is in the corner, wants to meet you.
Her mother, who had long suffered form arthritis, died last night.
All these books, which have been donated by visiting professors, are to be used by the postgraates.
在非限制性定語從句中只能用who/whom指人, 用which指物,通常不用that替代.
My father, who had been on a visit to America, returned yesterday.
All the books, which had pictures in them, were sent to the little girl.
定語從句的引導詞
that, who, whom: 非限制性定語從句, 如果修飾人, 一般用who, 有時用that (作主語時用who較多). 如果關系代詞在從句中作賓語, 就應當用賓格 whom 或that, 但在大多數情況下都可以省略掉, 在口語中可用who代替whom.
Here is the man (whom) you've been looking for.
He is a man (that) you can safely depend on.
The people (who/that) you were talking to were Swedes.
There are some people here who I want you to meet.
但在介詞後只能用whom:
This is the man to whom I referred.
但在口語中一般都把介詞放到句子後面去, 這時可用that, 但省略時更多一些.
Have you met the person about whom he was speaking?
Have you met the person (that) he was speaking about
The girl to whom I spoke is my cousin.
The girl (who/that) I spoke to is my cousin.
限制性定語從句如果修飾「物」, 用關系代詞that的時候較多, 也有時用which.. 當這個代詞在從句中是用作賓語時, 在絕大多數情況下都是省略的, 特別是口語中(尤其是當被修飾的詞是all, everything等詞時):
Have you everything you need?
(Is there) anything I can do for you?
All you have to do is to press the button.
2016年大學英語四級語法指導(4)
1. The children went there to watch the iron tower _D_.
A to erect B be erected C erecting D being erected
watch 看電視用，看比賽用; see 看電影用;
感官動詞watch， see， hear; 感官動詞 + 名詞(代詞)+ do
be erected 強調的是動作的結果; being erected 強調的是動作的過程。
2. The engine _D_ smoke and steam.
A gives up B gives in C gives away D gives off
give up 放棄; give in 屈服，讓步; give off 釋放，放出(煙和氣體);
give away 泄露，走漏風聲;婚禮中新郎的父親把新娘的手交給新郎的過程;贈送禮品。
3. The manager promised to keep me _C_ of how our business was going on.
A to be informed B on informing C informed D informing
keep sb. + 分詞; inform v. 通知，告知; inform sb. of sth. 通知某人某件事情
keep me informed 使我被告知。
4. The goals _B_ he had fought all his life no longer seemed important to him.
A after which B for which C with which D at which
fight with sb. (注意要看整個句子); fight with + 工具 用該工具來打仗。 fight for 為…而戰。
I fight with him. 我和他打起來了。 I fight with him against her. 我和他並肩對付她。
5. They _C_ in spite of the extremely difficult conditions.
A carried out B carried off C carried on D carried forward
in spite of 盡管; carry on 堅持，繼續。
6. I should like to rent a house， modern， comfortable and _B_ in a quiet neighborhood.
A all in all B above all C after all D over all
all in all 總而言之;above all 首先，尤其是;after all 畢竟，終究;overall 全面的'，總體的
in a word 總之，in short 簡而言之，in conclusion 最後，總之，to sum up總之，總而言之。
7. _B_ we have finished the course， we shall start doing more revision work.
A For now B Now that C Ever since D By now
now that 既然，由於(相當於since); ever since 自從…以來。
與that搭配且後面可以加句子的幾個表達形式：
now that 既然，由於; in that 因為; except that 除…之外。
except後面加名詞或代詞;except that後面加句子。
8. What you have done is _D_ the doctor』s orders.
A attached to B responsible to C resistant to D contrary to
be attached to 連接，附屬; This school is attached to Beida. 這所學校附屬於北大。
responsible to 對…負有責任; resistant adj. 反抗的，抵抗的; water resistant 防水的。
be contrary to 與。。相反(相違背)。
9. John regretted _A_ to the meeting last week.
A not going B not to go C not having been going D not to be going
regret doing 後悔做過某事; regret to do sth. 遺憾的做某事(應用語境非常有限)。
10. We regret to inform you that the materials you ordered are _B_.
A out of work B out of stock C out of reach D out of practice
out of work 失業; out of reach 夠不著 within reach 夠得著; out of practice 缺乏練習。
2016年大學英語四級語法指導(3)
動名詞的復合結構：凡是一個動詞的後面可以加動名詞，就可以加動名詞的復合結構。
動作發出者 + 動名詞;當動作發出者名字給出時：名詞所有格 + 動名詞;當動名詞的復合結構在文章中出現，且動作發出者在前文中提過時：形容詞物主代詞(賓格)+ 動名詞。
形容詞物主代詞：his， her， my， your， their， our。代詞賓格：him， her， me， you， us， them。
第二點：want 想要; want to do sth. 想做某事; want doing 客觀需要或缺乏。
例. Your hair wants _B_. You』d better have it done tomorrow.
A cut B cutting C to cut D being cut
注意：want doing 中doing表示的是被動含義。
例. This room is so dirty that it wants _A_.
A cleaning B to clean C being cleaned D cleaned
第三點：mean 意味; mean to do sth. 打算做某事，意欲… ;mean doing 意味著，…的意思是…
例. There』s a man at the reception desk who seems very angry and I think he means _B_ trouble. [reception desk 接待台]
A making B to make C to have made D having made
1. The children went there to watch the iron tower _D_.
A to erect B be erected C erecting D being erected
watch 看電視用，看比賽用; see 看電影用;
感官動詞watch， see， hear; 感官動詞 + 名詞(代詞)+ do
be erected 強調的是動作的結果; being erected 強調的是動作的過程。
2. The engine _D_ smoke and steam.
A gives up B gives in C gives away D gives off
give up 放棄; give in 屈服，讓步; give off 釋放，放出(煙和氣體);
give away 泄露，走漏風聲;婚禮中新郎的父親把新娘的手交給新郎的過程;贈送禮品。
3. The manager promised to keep me _C_ of how our business was going on.
A to be informed B on informing C informed D informing
keep sb. + 分詞; inform v. 通知，告知; inform sb. of sth. 通知某人某件事情
keep me informed 使我被告知。
4. The goals _B_ he had fought all his life no longer seemed important to him.
A after which B for which C with which D at which
fight with sb. (注意要看整個句子); fight with + 工具 用該工具來打仗。 fight for 為…而戰。
I fight with him. 我和他打起來了。 I fight with him against her. 我和他並肩對付她。
5. They _C_ in spite of the extremely difficult conditions.
A carried out B carried off C carried on D carried forward
in spite of 盡管; carry on 堅持，繼續。
2016年大學英語四級語法指導(2)
短語部分沒有獨立主語，則短語結構稱為非謂語動詞。
非謂語動詞的結構：分詞(分詞短語)
句子的主語決定非謂語動詞中的分詞是用主動還是被動形式。如果是句子的主語發出動作，則使用現在分詞;如果動作不是由句子的主語發出，則使用過去分詞。
1.No matter how frequently _A_， the works of Beethoven always attract large audiences.
A performed B performing C to be performed D being performed
perform vt. 表演，演出，演奏;
to be performed 將要被演奏; being performed 正在被演奏;
一些特殊的動詞：
第一點：forget 忘記; [反義] remember 記得;
這兩個詞後加動詞不定式表示將要進行的行為;這兩個詞後加動詞ing形式表示已經做過的事情。
注意：動名詞與現在分詞形式一樣，但含義不同。這兩個詞後加動詞ing形式都是動名詞。
forget to do sth. 忘記要去做某事; forget doing sth. 忘記做過某事;
remember to do sth. 記得要去做某事; remember doing sth. 記得做過某事;
2. I remember _B_ to help us if we ever got into trouble.
A once offering B him once offering C him to offer D to offer him
offer vt. 提出，提供; offer sb. sth. / offer to do sth.
him once offering 如果改成 his once offering 也正確。
動名詞的復合結構：凡是一個動詞的後面可以加動名詞，就可以加動名詞的復合結構。
動作發出者 + 動名詞;當動作發出者名字給出時：名詞所有格 + 動名詞;當動名詞的復合結構在文章中出現，且動作發出者在前文中提過時：形容詞物主代詞(賓格)+ 動名詞。
形容詞物主代詞：his， her， my， your， their， our。代詞賓格：him， her， me， you， us， them。
第二點：want 想要; want to do sth. 想做某事; want doing 客觀需要或缺乏。
例. Your hair wants _B_. You』d better have it done tomorrow.
A cut B cutting C to cut D being cut
1. The children went there to watch the iron tower _D_.
A to erect B be erected C erecting D being erected
watch 看電視用，看比賽用; see 看電影用;
感官動詞watch， see， hear; 感官動詞 + 名詞(代詞)+ do
be erected 強調的是動作的結果; being erected 強調的是動作的過程。
2. The engine _D_ smoke and steam.
A gives up B gives in C gives away D gives off
give up 放棄; give in 屈服，讓步; give off 釋放，放出(煙和氣體);
give away 泄露，走漏風聲;婚禮中新郎的父親把新娘的手交給新郎的過程;贈送禮品。
3. The manager promised to keep me _C_ of how our business was going on.
A to be informed B on informing C informed D informing
keep sb. + 分詞; inform v. 通知，告知; inform sb. of sth. 通知某人某件事情
keep me informed 使我被告知。
4. The goals _B_ he had fought all his life no longer seemed important to him.
A after which B for which C with which D at which
fight with sb. (注意要看整個句子); fight with + 工具 用該工具來打仗。 fight for 為…而戰。
I fight with him. 我和他打起來了。 I fight with him against her. 我和他並肩對付她。
5. They _C_ in spite of the extremely difficult conditions.
A carried out B carried off C carried on D carried forward
in spite of 盡管; carry on 堅持，繼續。
注意：want doing 中doing表示的是被動含義。
例. This room is so dirty that it wants _A_.
A cleaning B to clean C being cleaned D cleaned
第三點：mean 意味; mean to do sth. 打算做某事，意欲… ;mean doing 意味著，…的意思是…
例. There』s a man at the reception desk who seems very angry and I think he means _B_ trouble. [reception desk 接待台]
A making B to make C to have made D having made
2016年大學英語四級語法指導(1)
非謂語動詞與獨立主格：短語，句子(或者句子，短語)
當短語部分有獨立主語，並且該主語不同於句子主語，這時短語結構稱為獨立主格。(它最明顯的特點是短語部分有獨立的主語)。
獨立主格的結構1：名詞(代詞)+ 分詞 [現在分詞、過去分詞]
現在分詞表示主動的，正在進行的行為;過去分詞表示被動的，已經完成的行為。 作題時要通過判斷動作與名詞(代詞)之間的關系來確定是使用現在分詞還是過去分詞。當動作由名詞(代詞)發出時使用現在分詞，而名詞(代詞)是受動者時則用過去分詞。
1. Silver is the best conctor of electricity， copper _B_ it closely.
A followed B following C to follow D being followed
2. All things _A_， the planned trip will have to be called off.
A considered B be considered C considering D having considered
call off 取消; cancel vt. 取消; 四級中的考點就是現在分詞和過去分詞的區別。
獨立主格的結構2：with + 名詞(代詞)+ 分詞 [句子當中作狀語]
3. After the Arab states won independence， great emphasis was laid on expanding ecation， with girls as well as boys _C_ to go to school.
A to be encouraged B been encouraged C being encouraged D be encouraged
as well as 和(相當於and); be encouraged不會考。
動詞不定式有預示將來行為的含義。to be encouraged 將要被鼓勵;
been encouraged 已經被鼓勵完了，與主句的謂語動詞相對;being encouraged 正在被鼓勵
短語部分沒有獨立主語，則短語結構稱為非謂語動詞。
非謂語動詞的結構：分詞(分詞短語)
句子的主語決定非謂語動詞中的分詞是用主動還是被動形式。如果是句子的主語發出動作，則使用現在分詞;如果動作不是由句子的主語發出，則使用過去分詞。
1.No matter how frequently _A_， the works of Beethoven always attract large audiences.
A performed B performing C to be performed D being performed
perform vt. 表演，演出，演奏;
to be performed 將要被演奏; being performed 正在被演奏;
一些特殊的動詞：
第一點：forget 忘記; [反義] remember 記得;
這兩個詞後加動詞不定式表示將要進行的行為;這兩個詞後加動詞ing形式表示已經做過的事情。
注意：動名詞與現在分詞形式一樣，但含義不同。這兩個詞後加動詞ing形式都是動名詞。
forget to do sth. 忘記要去做某事; forget doing sth. 忘記做過某事;
remember to do sth. 記得要去做某事; remember doing sth. 記得做過某事;
2. I remember _B_ to help us if we ever got into trouble.
A once offering B him once offering C him to offer D to offer him
offer vt. 提出，提供; offer sb. sth. / offer to do sth.
him once offering 如果改成 his once offering 也正確。
2016大學英語四級聽力10大常考場景總結（4）
場景四：購物
1.采購衣服
必備詞彙表
size 型號 come in all sizes 號全
2.采購電器
必備詞彙表
model 款 discount 折扣
latest technology 最新的科技 rece 減少
;⑷ 四級作文中怎麼增加從句的使用
首先，從句分為很多種，主語，賓語，定語，狀語，等等，收先我覺得得先了解各個從句的意思。
1，主語從句
常規主語從句，即句子在復合句中充當一個主語
主語從句的時態：不受主句的時態影響和限制。
（1）That he finished writing the composition in such a short time surprised us all.
（2）What we need is time.
（3）What we need are good doctors.
小結:
（1）引導主語從句連詞有that,whether,who,what,whatever等
（2）連詞位於句首不能省略
（3）主語從句大多數情況下視為第三人稱單數，但也有例外，如例（9）
注意： 當what引導的名詞性分句作主語時，主謂一致問題極為復雜。著名學者周海中教授在論文《關於what-分句作主語的主謂一致問題》中就這一問題做了深入研究，並給出了10種的主謂一致關系。這些一致關系值得英語學習者和使用者特別注意。[1]
第二部分
為了防止句子頭重腳輕，通常把形式主語it放在句首位置，真正主語擱置於句末
（1）It is certain that he will win the match.
（2）It is said that he has gone to shanghai.(=He is said to have gone to shanghai)
（3）It is known to all that the gun powder was first invented by the Chinese.
（4）It is suggested that the work should be done with great care.
小結:
（1）為避免頭重腳輕，常以形式主語it引導從句。 It+形式主語謂語+從句。
（2）由於主語從句一般被認為是單數形式，形式主語的謂語動詞、be動詞+表語 均為單數第三人稱形式或過去式.（這種主語從句可以多使用點）
2，賓語是一個動作的承受者，多分為直接賓語(動作直接承受者）和間接賓語（動作間接承受者），下面的例子多使用在作文中，可以參考
動賓從句
大多數及物動詞都可以帶賓語從句
We all expect （that ）they will win,for members of their team are stronger.
我們都預料他們會贏，因為他們的隊員更強壯.
He told us （that） they would help us through the whole work.
他告訴我們在整個工作中，他們都會幫忙的.
部分「動詞+副詞」結構也可以帶賓語從句
I have found out （that） all the tickets for the concert have been sold out.
我發現這場音樂會的所有票都賣光了.
動詞短語也可以帶賓語從句
常見的這些詞有：
make sure確保 make up one』s mind下決心 keep in mind牢記
Make sure that there are no mistakes in your papers before you turn them in.
3.定語從句，在作文中可以多使用的，比較簡單，已不容易犯錯的， 定義從句死用來休息一個名詞的，
定語氛圍限定性和非限定性的，相比較而言，限定性的比較容易，for example
he is the guy who i met yesterday.在這個句子中who i met yesterday 就是用來限定「he'的，意思是他是我昨天遇到的那個人。換句話說，他只是我昨天遇到的，不是前天或者大前天遇到的， 這樣的的從句其實可以在作文中多用，
4.狀語
所謂狀語是指時間，地點 方式等，狀語從句比較復雜，不建議在作文中使用，狀語從句多用於敘述故事等等。其中目的狀語可以使用，for example
To help my disabled aunt , I spend an hour working in her house every day . 類似這樣的！
希望可以幫你啊哈！
⑸ 英語四級閱讀出題點是什麼呢—北外網課
常見英語四級閱讀出題點有以下幾種：
一、轉折
英語四級大綱在閱讀理解部分都指出：測試學生通過閱讀獲取書面信息的能力。因此，為了有針對性的考查大家對書面信息的獲取能力，經過對歷年真題的歸納總結發現，英語四級考點出處有一定特徵。其中第一大特徵就是在邏輯關系處出考題。
先帶大家看看大家最熟悉的考點出處：轉折處出考點。常見轉折關聯詞有：but, however, yet, nevertheless, while(然而), on the contrary等等。
真題再現
大家先試試身手，不會的話，記得找出真題再做一遍喲！
例1：A few months ago, it wasn't unusual for 47-year-old Carla Toebe to spend 15 hours per day online. She'd wake up early, turn on her laptop and chat on Internet dating sites and instant-messaging programs – leaving her bed for only brief intervals. Her household bills piled up, along with the dishes and dirty laundry, but it took near-constant complaints from her four daughters before she realized she had a problem.(2010.6, cet4 )
51. What eventually made Carla Toebe realize she was spending too much time on the Internet?
A. The poorly managed state of her house.
B. The high financial costs adding up.
C. Fatigue resulting from lack of sleep.
D. Her daughter's repeated complaints.
【答案】D
【解析】本段主要描述了Carla Toebe因上網嚴重影響到生活，最後一句後半句通過轉折指出，是她4個女兒的不停抱怨才讓她最終意識到自己有了問題(had a problem)，而這一問題正是題干中提到的「spending too much time on the Internet」。
二 、並列因果
除了最熟悉的轉折以外，邏輯關系還包含：並列、舉例、因果、遞進等等。而緊排在轉折之後，相對在歷年真題中較多出現的考查處，分別是：並列和因果。
常見表並列的詞語：and, while(同時), meanwhile, also;
值得注意的是：兩個句子之間用分號(;)隔開，也表並列。
常見表因果的詞語：because, why, the reason, for, so, since, as a result等。
同樣值得注意的是：當why引導一個問句時，考點出處往往是緊接著回答此問題的句子或相鄰的幾個羅列點或相連幾段話的首句。
並列和因果都比較難以察覺，需要同學平時練習過程中就有意識地對這兩種邏輯關系進行關注。
真題再現
大家先試試身手，不會的話，記得找出真題，再做一遍喲!
例1：(並列)They weren't looking for cured meats, organic proce or beautiful presentation; they were looking for whatever they could get their hands on, and this prioritisation of quantity over quality prevailed for decades, meaning a generation was brought up with food that couldn't compete with neighbouring France, Italy, Belgium or Spain.(2011.6, cet 4)
53. Why couldn't Britain compete with some of its neighbouring countries in terms of food in the post-war decades?
A. Its food lacked variety.
B. Its people cared more for quantity.
C. It was short of well-trained chefs.
D. It didn't have flavourful food ingredients.
【答案】B
【解析】本段後半部分提到，這種只重數量不重質量的習慣持續了幾十年，這意味著一代英國人是被無法和鄰近的法國、義大利、比利時和西班牙相媲美的食物養 大的。由此可知，英國食物無法跟鄰國競爭是因為英國人只重數量不重質量。B選項是對原文中「prioritisation of quantity over quality」的同意轉述。
三 、特殊標記
細心的同學會在以前的英語四級大綱中發現，快速閱讀部分寫到：「要求考生運用略讀和查讀的技能從篇章中獲取信息。「考核學生利用各種提示，快速查找特定信息的能力。這些提示包括文中的以下信息：
1. 數字
2. 大寫單詞
3. 段首或句首詞等
很顯然，這一條不僅適用於快速閱讀，也適用於仔細閱讀。
真題再現
例1：Richard Got professor of astrophysics at Princeton, hopes man will set up a self-sufficient colony on Mars, which would be a 「life insurance policy against whatever catastrophes, natural or otherwise, might occur on Earth. (2008.6, cet6)
66. According to Princeton professor Richard Gott, by setting up a self-sufficient colony on Mars, Humans_____.
A. might survive all catastrophes on earth
B. might acquire ample natural resources
C. will be able to travel to Mars freely
D. will move there to live a better life
【答案】A
【解析】題干中setting up a self-sufficient colony on Mars可在原文中直接找到，原文中which引導的定語從句表示的內容就是setting up a self-sufficient colony on Mars所帶來的影響：人類能夠應對地球上各種各樣的災難從而倖存下來。A選項中的survive all catastrophes on earth 是對原文的同義轉述。
四、標點符號
下面講解閱讀考點常考出處的最後一個特徵：總有部分題目出自引人注目的 —— 標點符號處。在四六級閱讀過程中，引人注目的標點符號，不得不關注的標點符號主要有兩類：1. 引號;2. 小括弧。
1. 引號
1)尤其是當引號表示著重強調時
如：They are using fewer of the very deferential 「women』s」 forms, and even using the few strong forms that are know as 「men』s」 .
2)某人說的話，能夠集中表達一個事實或觀點時
如："If it's a loss [where] you're not getting to work, and family relationships are breaking down as a result, then it's too much." said Maressa Orzack, a Harvard University professor.
2. 小括弧
小括弧中間加一個漢語注釋，非常容易引起大家的注意。此處就不贅述。我們還是通過真題舉例來看具體考察情況吧。
真題再現
例1(引號)：Toebe also regularly visits a site where posters discuss Internet overuse. In August, when she first realized she had a problem, she posted a message on a Yahoo Internet addiction group with the subject line: "I have an Internet Addiction."(2010, 6, cet4)
8. In one of the messages she posted on a website, Toebe admitted that she ______.
【答案】had an Internet Addiction
【解析】首先分析結構可知，本空所填內 容是充當that賓語從句的謂語，主句的admitted表明謂語應用過去時。原文提到Toebe在雅虎的一個上網成癮群里發了一條消息，引號中的內容為 這條小的的主題：「我有網癮」。由此可知，Toebe承認自己「上網成癮」。故答案根據時態要求進行修改為：had an Internet Addiction.
⑹ 英語四級語法辨析：when, while與as的用法區別
英語四級語法用法辨析：when, while與as的用法區別
1. 根據從句動作的持續性來區分
若是“主短從長”型，即主句是一個短暫性的動作，而從句是一個持續性動作，此時三者都可用。如：
As [When, While] she was waiting for the train, she became very impatient. 她在等火車時，變得很不耐煩。
若是“主長從長”型，即主句和從句為兩個同時進行的動作或存在的狀態，且強調主句動作或狀態延續到從句所指的整個時間，此時通常要用while。如：
I always listen to the radio while I'm driving. 我總是一邊開車一邊聽收音機。
但是，若主句和從句所表示的兩個同時進行的動作含有“一邊……一邊”之意時，則習慣上要用as。如：
He swung his arms as he walked. 他走路時擺動著手臂。
若是“主長從短”型，即主句是一個持續性動作，而從句是一個短暫性動作，此時可以用as或when，但不能用while。如：
It was raining hard when [as] we arrived. 我們到達時正下著大雨。
2. 根據主句與從句動作是否同時發生來區分
若主句與從句表示的是兩個同時發生的短暫性動作，含有類似漢語“一……就”的意思，英語一般要用as (也可用when)。如：
The ice cracked as [when] I stepped onto it. 我一踩冰就裂了。
He jumped to his feet as the boss came in. 老闆一進來他立刻站了起來。
若主句與從句表示的是兩個幾乎同時發生的短暫性動作，含有類似漢語“剛要……就”“正要……卻”的意思，英語一般要用as(也可用when)，且此時通常連用副詞just。如：
Just as [when] the two men were leaving, a message arrived. 就在這兩個人要離開的時候，突然有了消息。
3. 根據是否具有伴隨變化來區分
若要表示主句動作伴隨從句動作同時發展變化，有類似漢語“隨著”的意思，英語習慣上要用as，而不用when或while。如：
The room grew colder as the fire burnt down. 隨著爐火逐漸減弱，房間越來越冷。
As time goes by my memory seems to get worse. 隨著時間的流逝，我的記憶力似乎越來越差。
若不是引導從句，而是引出一個短語，則用with，不用as。如：
With winter coming on, it's time to buy warm clothes. 隨著冬天到來，該買暖和衣裳了。
The shadows lengthened with the approach of sunset. 隨著太陽下落，影子也逐漸伸長。
4. 根據從句動作的規律性來區分
若暗示一種規律性，表示“每當……的時候”，英語一般要用when。如：
He smiles when you praise him. 你誇獎他時他總是笑笑。
5. 根據主從句動作的先後順序來區分
若主句與從句所表示的動作不是同時發生，而是有先後順序時，一般要用when。如：
When he arrives he'll tell us all about the match. 等他到了，他會好好給我們講講那場比賽的情況。
When she had finished she waited as though for a reply. 她講完之後等了等，彷彿是在等候回答似的。
以上就是關於英語四級語法辨析的分享，希望對想要考四級的小夥伴們有做幫助，想要了解更多相關內容，歡迎及時關注本平台!