鲨鱼用英语怎么介绍
① 怎样用英文描述鲨鱼
Sharks are the most fierce animal in the ocean. they appear in the earth about 300,000,000 years before dinosaurs. The skin of sharks are always inrate and slippery, and it's very sensitive to the other objects in the ocean. Marine animals such as fishes, shrimps and crabs are elementary food for sharks. Even though, some kind of sharks still attack human beings, e.g. great white sharks. During these recent years, the total number of sharks has Significantly reced, owning to their expensive fins.
② 求英文鲨鱼简介........
Sharks are a type of fish.
There are hundreds of kinds of sharks. Most are about two meters long. The dogfish shark, however, is less than twenty centimeters in length. The biggest whale shark can grow to twenty meters in length. Sharks do not have bones. The skeleton of a shark is made of cartilage. Human noses and ears are also made of cartilage.
A shark has an extremely good sense of smell. It can find small amounts of substances in water, such as blood, body liquids and chemicals proced by animals. Sharks also sense electrical and magnetic energy linked to nerves and muscles of living animals.
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③ 鲨鱼的简介
鲨鱼属于脊椎动物门软骨纲(Chondrichthyes)板鳃亚纲，海生，少数种类进入淡水，为一群游速快的中大型海洋鱼类。
外形特征：
体呈长纺锤形。鳃裂侧位，胸鳍正常，不与吻的前缘愈合；北鳍背位；歪尾型。
身体呈纺锤状，头两侧有腮裂，但类似普通鱼。除个别例外，典型的鲨鱼皮肤坚硬，呈暗灰色，牙齿状鳞片使皮肤显得粗糙。尾部强壮有力，不对称、上翘；鳍呈尖状；吻尖，前突，吻下有新月形嘴及三角形尖牙。鲨鱼无鳔，需不停地游泳以免沉到水底。
物种概述
1、大白鲨是最大的食肉鱼类，为软骨鱼纲鼠鲨目鼠鲨科的其中一种，大白鲨是卵胎生的鱼类，身长可达6米多，体重超过3吨，牙长10厘米。分布于各热带、亚热带和温带海区、在澳洲海域最为常见以及南海、东海、黄海及渤海等海域，属于大洋性活泼健游种类。大型进攻性鲨鱼，危险！虎鲸是大白鲨唯一的天敌。
2、巨口鲨，是鼠鲨目的一科，只有一种巨口鲨，是新发现的一个品种，目前全世界发现数量不到50只，相当罕见。第一只巨口鲨是在1976年于夏威夷外海发现的。巨口鲨分布在印度洋，太平洋、大西洋，栖息深度约5至1000米之间，以深海居多，故很少被捕获。
3、浅海长尾鲨，又名浅海狐鲛或远海长尾鲨，是软骨鱼纲鼠鲨目狐鲛科的一种。分布于印度太平洋区，为大洋性大型鲨鱼，肉食性，主要以鱼、飞鱼及远洋鱿鱼为食物。卵胎生。
4、沙虎鲨，又名戟齿砂鲛或戟齿锥齿鲨，是一种生活在海岸海域的大型鲨鱼。现正分布在大西洋、印度洋及太平洋不同的地方。沙虎鲨的外表凶猛，但它们往往很温顺，除非受到挑衅，否则它并不带有攻击性。食物主要有硬骨鱼（包括大海鲈）、其他鲨鱼及鱼、鱿鱼、蟹及龙虾。
④ 鲨鱼简介英文
sharks
are
a
type
of
fish.
there
are
hundreds
of
kinds
of
sharks.
most
are
about
two
meters
long.
the
dogfish
shark,
however,
is
less
than
twenty
centimeters
in
length.
the
biggest
whale
shark
can
grow
to
twenty
meters
in
length.
sharks
do
not
have
bones.
the
skeleton
of
a
shark
is
made
of
cartilage.
human
noses
and
ears
are
also
made
of
cartilage.
a
shark
has
an
extremely
good
sense
of
smell.
it
can
find
small
amounts
of
substances
in
water,
such
as
blood,
body
liquids
and
chemicals
proced
by
animals.
sharks
also
sense
electrical
and
magnetic
energy
linked
to
nerves
and
muscles
of
living
animals.
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⑤ 用英语介绍一种鲨鱼用6句话
鲨来鱼，被一些人认为是海自洋中最凶猛的鱼类之一。但鲨鱼中体型最大的鲸鲨却以小型海洋生物为食物，和须鲸差不多。由于食物具有某种相似性，经过漫长的生物演化，它们长得和须鲸很有相似点，这个叫做“趋同进化”。于是“鲸鲨”的名字就理所当然了。
The shark, considered by some to be one of the most ferocious fishes in the sea. But the shark in the largest whale sharks with small sea creatures for food, and whales almost. Because the food has some similarities, over a long period of biological evolution, they grow and whales very similar. This is called "convergent evolution." So the "shark" the name of behoove.
⑥ 鲨鱼的资料（英文）
鲨鱼属于脊椎动物门软骨纲(Chondrichthyes)板鳃亚纲，海生，少数种类进入淡水，为一群游速快的中大型海洋鱼类。
Sharks are vertebrates steel door cartilage (Chondrichthyes) elasmobranchii, Marine, a few species enter fresh water, as a group of large Marine fish speed is fast.
鲨内骨骼完全由软骨组成，常钙化，但无任何真骨头组织，外骨骼不很发达或退化，身体常被皮齿(质鳞)，牙多样化，具有硬肌，但膜骨则永不存在，脑颅无缝。
Shark endoskeleton completely composed of cartilage, often calcified, but without any true bone tissue, degraded or exoskeletons is not very rich, the body is often skin teeth (scale), tooth diversification, with hard muscle, but never exist, membrane bone temple seamless.
上额由腭方软骨组成，下额由梅氏软骨组成。最新研究表明，鲨体内含有多种生物活性成分，如抗癌因子、角鲨烯、黏多糖等等。
On the forehead is composed of palatal side cartilage, the forehead is composed of Mr Medvedev cartilage.Sharks, according to new research in the body contains a variety of biological active ingredients, such as anti-cancer agent, squalene, mucopolysaccharides and so on.
(6)鲨鱼用英语怎么介绍扩展阅读
鲨鱼的起源不详，但其地质学纪录可追溯到泥盆纪(4.08亿～3.6亿年前）。鲨鱼化石在中泥盆世出现，在石炭纪（3.6亿～2.86亿年前）成为占优势的脊椎动物。现代鲨鱼出现于侏罗纪早期（2.08亿～1.87亿年前），到白垩纪（1.44亿～6,640万年前）已经发展成现存的各科。
总之，除觅食和游泳机制的改进外，进化对鲨鱼的形态改变甚微。无论对化石种和现存种类来说，牙齿在鲨鱼种类鉴别方面均有很重要作用。
⑦ 鲨鱼简介英文
字典给的：
Shark：Any of numerous chiefly marine carnivorous fishes of the class Chondrichthyes (subclass Elasmobranchii), which are sometimes large and voracious and have a streamlined, torpedolike body, five to seven gill openings on each side of the head, a large oil-filled liver, a cartilaginous skeleton, and tough skin covered with small toothlike scales.
鲨鱼：任一种软骨鱼纲的海生食肉鱼，有的体形巨大、贪婪并呈流线形专，有鱼雷状躯属体，头的侧面各有五至七个鳃孔，并生有一个大的富有油脂的肝脏，一个软骨骨架和覆盖有小齿状鳞片的坚韧表皮