Mammals give birth to their young. 什么意思

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七木妖精 共回答了16个问题 | 采纳率93.8%
哺乳动物生下他们的幼鸟
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whales aren't____,they are mammals(哺乳动物)
whales aren't____,they are mammals(哺乳动物)
A.fish B.fishes
请说一下原因``
谢勒哈
sirous81101年前1
gaoyuan200178 共回答了22个问题 | 采纳率90.9%
A
因为fish是不可数
It is the largest mammals in the word that live on land.It l
It is the largest mammals in the word that live on land.It lives in familes.it is a plant-eater.Because it is such a big animal,it needs to eat lots of leaves and grass.It spengds as much as twenty hours a day eating!It has four teeth and two"tusks".
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它是世界上最大的陆生哺乳动物. 它以家庭为团体生活.它是食草动物.因为体型如此庞大,它需要吃大量树叶和草.每天它需要花长达20小时时间来进食.它有4课牙齿和两颗长牙.
英语阅读题In the evolution of mammals from reptiles(爬行动物), there
英语阅读题
In the evolution of mammals from reptiles(爬行动物), there was a succession of physical changes: the development of warm blood, body hair instead of scales, and the beginning of the nursing of the young. This radical physical transformation provided mammals with a greater tolerance for external temperature and required reliance on specialized food types. When the dominant dinosaurs(恐龙)became extinct, the Age of Mammals began. For the rest 60 million years mammals expanded into the biological vacuum which they were better equipped to exploit than all but a few varieties of reptiles.
The habitat of life forms on earth has been the entire planet, conveniently dividing the world into the birds of the air, the fish of the sea, and the creatures of the land. The evolutionary process also created sea-dwelling mammals who appeared to reverse the process of evolution as they returned to the sea. The whales’ limbs became flipperlike, and they lost the hair on their bodies, suiting them better to aquatic life.
On the other hand, in the course of the evolution of birds from reptiles, there was a succession of changes in the bone, muscle, and skin structures of the animals. This wholesale restructuring of some reptiles over a period of thousands of years equipped the new animals to escape their predators and to find food more easily. But the evolutionary process did not stop there. Once adapted to flight, some birds continued to change and the process seemed to reverse itself. As penguins(企鹅)adapted to marine life, their wings changed to flippers and their feathers to a waterproof covering, thus suiting the birds for a semi-aquatic existence.
1. The Age of Mammals began when ____
A. animals evolved from reptiles
B. animals nursed the young
C. animals were more tolerant to external temperature
D. the dominant dinosaurs died out
2. It can be concluded from this passage that the ancestors of whales ____
A. were fish B. chased reptiles
C. lived on the land D. had too many offspring
3 In paragraph 2, the word ‘aquatic’ is closest in meaning to ____
A. of earth B. of land
C. of river D. of water
4. Certain reptiles gradually became able to escape quickly by ____.
A. acquiring new structural features
B. becoming smaller and stronger
C. finding food more easily
D. changing their eating habits
5. Which of the following would be the best title for this passage?
A. The Evolution of Mammals.
B. The Evolution of Life on Earth.
C. The Disappearance of Reptiles.
D. The Adaptation of Whales and Penguins.
yvldreamyu1年前2
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DCBAA
(共40题、总分40分)1.( ) some mammals came to live in the sea is no
(共40题、总分40分)1.( ) some mammals came to live in the sea is not known (本题分
yxdlc1年前1
yl46976855 共回答了22个问题 | 采纳率100%
When最好.
如果填whether或if搭配or not.
Where后面已经有in the sea.
Who不对,已经 有mammals.
how some mammals came to live in the sea is not known,
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不知道哺乳动物是如何生活在海中的
2013人教版八上英语判断题Bats are the only flying mammals (哺乳动物) in the
2013人教版八上英语判断题
Bats are the only flying mammals (哺乳动物) in the world.They can’t see very well.It was long believed and still is in many places,that all bats are blind."Blind as a bat" is often heard.Yet they have no trouble in flying on the darkest nights and finding their way around very well.How can bats fly and see at night?They fly by radar.
The bat’s radar system works the same way as the one that ships and planes use.As a bat flies through the air,it makes a sound that is too high for our ears to hear.If the sounds hit things,they come back.The bat’s ears receive the messages.In this way they are able to tell where the things are.Bats go out to look for food at night.In the daytime they hang in some dark places.Some people have the bats as bad animals.
根据短文内容,判断正(T)误(F)
()1.The bat is a bad bird.
()2.The bat has no trouble flying on the darkest nights because it has a kind of radar sys-ten to help it.
()3.The bat goes out for food all day.
()4."As blind as a bat" maens a person who is not able to see what is clear to others.
()5.Some people think that the bat is bad because it is blind
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F
T
F
T
F
八年级上册英语阅读理解:dolphins are not fish.they are mammals they live
八年级上册英语阅读理解:dolphins are not fish.they are mammals they live in groups and
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Dolphins are not fish. They are mammals(哺乳动物). They live in groups and speak to each other in their own language. But they are quite different from almost all land animals. Their brain(大脑) is as big as men’s and they live a long life—at least 20 or 30 years.
Like some animals, dolphins use sounds to help them find their way around. They also use these sounds to talk to each other and to help them find food. They do not use their ears to receive sounds, but use the jaw — the lower part of the mouth.
It is strange that dolphins are friendly to men, and for thousands of years, there are many stories about dolphins and men. In the 19th century, in a dangerous part of the sea near New Zealand, there was a dolphin. The seamen liked him very much and gave him a very good name, Jack. From 1871 to 1903, Jack met every boat in the area and showed it the way. In 1903 a passenger on a boat with the name of “The Penguin” shot and hurt Jack. Luckily the dolphin didn’t die, and after a long time he was well again. He guides the boats through the area for nine more years, but he refused to help the boat “The Penguin”.
Today, some people still kill dolphins, but many countries in the world now protect them. In these places, people are not allowed to kill them.
1 The underline word jaw means _________in Chinese.
A.下颚 B.嘴巴 C.鼻子
2. Who was Jack?
A. The writer B. A dolphin C.A seaman
3. The dolphin guides the boats for about________.
A.32 years B. 9 years C.41 years
4. How do dolphins find their way?
A. They use sounds to find the way.
B. They use their noses to smell the way.
C. They use their eyes to see the way.

d. They use their ears to hear the way.
5. According to the passage, which of the following is NOT right?
A. Dolphins are not fish.
B. Dolphins don’t live in groups.
C. Dolphins are kind and friendly to people. ABAAB
一篇the largest mammals in the world的短文,求它的问题:what is the titl
一篇the largest mammals in the world的短文,求它的问题:what is the title of the table等等
深圳版本……
微笑的花儿1年前3
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你倒是把原文贴出来啊,没有原文我怎么答题?
___D__ some mammals came to live in the sea is not known.[ ]
___D__ some mammals came to live in the sea is not known.[ ] A.Which B.Since C.Although D.How
为什么不用which 选D 但选how是做known的宾语?
was0001年前1
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how是副词,不能作宾语.这是how引导的主语从句.
how some mammals came to live in the sea 这是主语从句.
哺乳动物如何生活在海洋里.
is not这是系动词
known 这是过去分词做表语.表示被知道.
英语单项求教It puzzles the scientists _____ some mammals produce t
英语单项求教
It puzzles the scientists _____ some mammals produce their young _____ others lay eggs.
A.that; while B.what; while C.that; as D.what; as
选出来后
asa01531年前3
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A为正确答案.
这是一个以it为形式主语、而that所引出的主语从句为真正主语的复合句,相当于:That some mammals produce their young while others lay eggs puzzles the scientist.
在that 引出的主语从句中有一个以并列连词连接的并列句.while在这儿的意思是"而".
译文:意思是:让科学家困惑的是,一些哺乳动物直接生育后代,而另一些则是通过产卵孵化.
____some mammals came to live in the sea is not known.能用whic
____some mammals came to live in the sea is not known.能用which吗
大码头a1年前4
xiaoxiamajor 共回答了19个问题 | 采纳率89.5%
不能,因为which 一般在句中会做某一个成分,即没有Which 句子不完整,而本句不看空白处,some mammals came to live in the sea is not known是一个相当完整的句子,主语是some mammals came to live in the sea .is not known 是系表结构,即is 是系动词 not know 是表语
应该用whether
whether some mammals came to live in the sea is not known.是否有哺乳动物开始生活在海里还不知道.
Why Mammals with a high rate of respiration need to have a h
Why Mammals with a high rate of respiration need to have a high heart rate.
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Because high heart beating rate can speed up the blood circulation in order to carry more oxygen for the body.
.Elephants, which are the largest mammals on the earth, have

.Elephants, which are the largest mammals on the earth, have almost no natural enemies ______ human beings.
A.rather than B.other than C.more than D.less than
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B

短语辨析。rather than 而不是; other than 除了,不同于;more than 多于,超出; less than小于,不超过。句意:大象,地球上最大的哺乳动物,除了人类几乎没有天敌。故选B。
Some mammals migrate(迁徒). One of these is the caribou(驯鹿). T
Some mammals migrate(迁徒). One of these is the caribou(驯鹿). They travel to the tundra(苔原)every summer to eat the rich grasses that grow there. When the weather becomes cooler, they migrate to the warmer forests and spend the winter there. Another mammal that migrates is the humpback whale. They spend the winter in Hawaii, and the summer in the Arctic(北极的)waters. They travel to the Arctic to eat millions of small shrimp(虾).
Anther habit that some animals have to survive the cold winter is called hibernation. Animals that hibernate, rest or sleep during the winter. While they are hibernating, their bodies use up the fat layer that they have put on by eating large amounts of food during the summer. Some animals that hibernate in the Arctic are small animals called lemmings(旅鼠), squirrels(松鼠)and bears.
There are two habit adaptations that animals in the Arctic have all year round. These are called herding and pack life. Caribou are example of animals that live in herds. A herd is a group of animals that lives together for most, or all of their lives. A herd of caribou can have a thousand or more animals in it. They live in herds for protection. It is easier for caribou to protect themselves when they are together than it is when they are alone. This is because the meat-eaters hunt in packs.
A pack is a small group of animals that lives together. It is usually controlled by a head male and a female. All the members of the pack must obey them. Packs have a very definite social structure. Each animal in a pack has a different position, or importance. Animals in a pack are usually meat-eaters. They live together for protection and hunting purposes.
小题1:According to the first paragraph, the humpback whale .
A.travels to the Arctic for shrimp in summer
B.spends the winter in the Arctic
C.lives in Hawaii in summer
D.has the same living habits as the caribou
小题2:What kind of animal doesn’t hibernate in the Arctic?
A.The caribou. B.The bear. C.The squirrel. D.The lemming.
小题3: Caribou live in herds in order to .
A.use up their fat layer B.find food C.protect themselves D.hunt in packs
小题4: What do we know about pack life according to the last paragraph?
A.Animals in pack are usually grain-eaters.
B.All animals are in an equal position in a pack.
C.It is either controlled by a head mate or by a female.
D.Each animal has its own different role in a pack.
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小题1:A
小题2:A
小题3:C
小题4:D

The disappearance of dinosaurs made___ the rise of mammals w
The disappearance of dinosaurs made___ the rise of mammals which gave birth to young baby animals.
A.it was possible B.it possible C.possible to be D.possible
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句型:make something possible 使某事成为可能
其中的something=the rise of mammals which gave birth to young baby animals 分娩小动物的哺乳动物的崛起
"which gave birth to young baby animals"是用来具体解释说明mammals
当make something possible句型中的something是复合结构或者很长很复杂的时候,句型一般会转换为make possible+something
整句主语:the disappearance of dinosaurs 恐龙的灭绝
谓语动词组:made...possible
翻译:恐龙的灭绝使分娩后代的哺乳动物的崛起成为可能.
希望有帮助.
为什么A11.This disappearance made ____ the rise of mammals on t
为什么A
11.This disappearance made ____ the rise of mammals on the earth.
A.possible B.everything possible C.it possible D.it was possible
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其实是:
.made the rise of mammals on the earth possible
make sth +形容词
分析下这个句子A tiny mutation in a gene common to mammals may have
分析下这个句子
A tiny mutation in a gene common to mammals may have changed the destiny of humanity.
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哺乳动物常见的一个小小的基因突变可能会改变人类的命运.
A tiny mutation in a gene common to mammals——主语;
may have changed——谓语;
the destiny of humanity——宾语.
译文仅供参考.
不明白的再问哟!请记得采纳,多谢!
Are dolphins fish or mammals 翻译
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海豚是鱼还是哺乳动物?
英语翻译The most common animals are mammals ,birds ,fish and ins
英语翻译
The most common animals are mammals ,birds ,fish and insects.
Mammals give birth to their young .They feed them on milk .Birds,insects and most fish come from eggs Birds have feathers ,fish have scales,insets have three parts on their bodies;head,thorax and abdomen.
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最常见的动物是哺乳类,鸟类,鱼类与昆虫.
哺乳类的生殖方式是胎生.他们以乳汁喂养小孩子.鸟类,昆虫与大多数鱼类都是卵生.鸟有羽毛,鱼有鳞,昆虫的身体分为三部分,头,胸与下腹.
It feeds mainly on medium sized mammals such as deer or wild
It feeds mainly on medium sized mammals such as deer or wild pigs,but is also known to eat fish.
分析句子成分
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它主要以中小型哺乳动物如鹿或野猪的饲料,但也吃的鱼.
____cats and ___tigers belong to ___same family of mammals.
____cats and ___tigers belong to ___same family of mammals.
A.The;/;the; B.The;the;/ ; C./ ;/ ;the;D./ ;/ ;a;
求详细解题过程 求普及下语法
ytryrt551年前1
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选C
Cats and tigers belong to the same family of mammals.
前面两个什么都不加因为不是特指.第三个加“the“ 是因为特指一个家族.
*** 猫迷英语专家团提供【Real.American.English.】
The spread of mammals happened after the disappearance of th
The spread of mammals happened after the disappearance of the dinosaurs.求翻译
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哺乳动物的繁衍出现在恐龙灭绝之后
雅思判断题求解原文in most mammals,both hemispheres inherited.题目in mam
雅思判断题求解
原文in most mammals,both hemispheres inherited.
题目in mammals, both hemispheres inherited.
我的答案是ng.参考答案是f 我就是在这两个上面犹豫不决.
谁能告诉我一针见血的解决办法
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本人雅思7分,阅读单项8分.这个问题我的理解是它的考点就是在most这个表程度的词上.
原文讲大多数,到里题目变成全部了,意思当然不同了.
所以选f.这个题目你要先入为主,不要被考题签着走,容易犯错.下次你要是看到这样的题目,就要留心下most,很可能会是考点.下面同理,我给你几个例题,你可以琢磨下,希望对你有所帮助.
Hieroglyphs remained in use in Egypt for about 3,000 years-for some of the time used alongside alternative writing systems-before being replaced by an alphabetical system.→ Alphabets developed later than Egyptian hieroglyphs.
While most alphabets contain between 20 and 30 letters,the smallest,used in the Solomon Islands,contains only 11.Khmer,the official language of Cambodia,has the largest alphabet,with 74 letters.→ The more words there are in a language,the more letters there are in its alphabet.
The writing system has not kept pace with changes in pronunciation over the centuries.→ English pronunciation has changed more than spelling.
Now,instead of sleeping,we can check our bank balances by phone,buy groceries,surf the net for cheap flights or go to the gym.→ There is a greater demand at night for some services than for others.
Research suggests that owls may pay a price for this in terms of health problems…giving larks a better quality of sleep.→ Larks are more likely to be ill than owls.
….more girls (13%) than boys (5%) said that rainforest provided human habitats.→ Girls are more likely than boys to hold mistaken views about the rainforests’ destruction.
A is similar to B → A>B
…Dr.Samuel Johnson,… as famous in his own time as in ours,… →Johnson has become more well known since his death.
都是比较类的,
问一道SAT语法题yawning is nearly universal among mammals,but birds
问一道SAT语法题
yawning is nearly universal among mammals,but birds,reptiles,and even fish also yawn,( perhaps for the same reasons )that mammals do.正确
为什么 possibly with similiar reasons
葱花_香1年前3
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3.原题正确
possibly with similar reasons不对
因为for the same reasons是表示 为了 相同的 原因
with similiar reasons 是表示 因为 类似的 原因
注意 区别
如 on a similar plan 以同样的方法.
on the same plan .以同一方法.
本句 强调的是 其他动物 打哈欠 的一些原因 与 哺乳动物 打哈欠的一些原因是一样的.而不是 类似的其他一些原因
The Largest Mammals in the World
空中云1年前5
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LZ说的是七年级寒假作业p55页的题目
Here we are,a mere handful of weak and defenceless mammals.
Here we are,a mere handful of weak and defenceless mammals.
这里的前半句是倒桩 那么句子后面的是we的同位语么 不连在一起语法也没有问题么?
雪桃桃1年前4
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是的 后半句是we 的同位语 因为后面半句里面没有动词,所以可以不用连在一起 相当于解释前面的we
帮忙修改一段话,主要是语法~wolves are mammals.Compare with human,wolves n
帮忙修改一段话,主要是语法~
wolves are mammals.Compare with human,wolves not have high IQ,but they also have typical behavior of mammals.For example,wolf have strict hierarchy,division of laber between the gender and the cooperation between partners.Like human,wolves are the typical social animals,they have strict hierarchy.Wolves are similar to human.Both have a head of the family.For wolf,the family unit,the head of the family are strong couple.In human's family,also have 1 or 2 people decide to a family life direction.In the wolves group,female wolves have strong family values,some female wolves voluntary feed other wolf's cub.Sometimes they can form ‘kindergarten’ mode.Male wolves look for foods and protect female wolves andtheir cub.Conversely,human feed other people's children for earn money,sometimes,male stay at home take care of children.Wolves successful catch prey rely mainly on cooperation.In similar way,human always achieve the goal by cooperation.
暗影独舞1年前4
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Wolves are mammals. Comparing with human, wolves don't have high IQ, but they do have typical behavior of mammals. For example, wolves have strict hierachy, division of laber between the gender and the cooperation between partners. Like human, wolves are the typical social animals, they have strict hierarchy. (This sentence can be interpreated as, the human also ahve strict hierachy which only happed in feudal society.) Wolves are similar to human, both ahve a leader of the family.For wolf, the family unit, the leader of the family are strong couple. In human's family, also have 1 or 2 people to decide a family life direction. In the wolves group, female wolves have strong family values, some female wolves voluntarily feed other wolves' cub. Sometines they can form a "kindergarten"mode. Male wolves look for foods and protect female wolves and their cub. Conversely, human feed other people's children for earn money, sometimes, male stay at home take care of children. Wolves successfully catch prey mainly rely on cooperation. In similar way, human always achieve the gtoal by cooperation. ( You should put the similarity in one paragraph and difference in another paragraph for better logic and understanding. And you can do better in the comparsion)
Dophina are not fish .They are mammals .
Dophina are not fish .They are mammals .
Dolphins are not fish.They are mammals(哺乳动物).They live in groups and speak to each other in their own language.But they are quite different from almost all land animals.Their brain(大脑) is as big as men’s and they live a long life—at least 20 or 30 years.
Like some animals,dolphins use sounds to help them find their way around.They also use these sounds to talk to each other and to help them find food.They do not use their ears to receive sounds,but use the jaw — the lower part of the mouth.
It is strange that dolphins are friendly to men,and for thousands of years,there are many stories about dolphins and men.In the 19th century,in a dangerous part of the sea near New Zealand,there was a dolphin.The seamen liked him very much and gave him a very good name,Jack.From 1871 to 1903,Jack met every boat in the area and showed it the way.In 1903 a passenger on a boat with the name of “The Penguin” shot and hurt Jack.Luckily the dolphin didn’t die,and after a long time he was well again.He guides the boats through the area for nine more years,but he refused to help the boat “The Penguin”.
Today,some people still kill dolphins,but many countries in the world now protect them.In these places,people are not allowed to kill them.
1 The underline word jaw means _________in Chinese.
A.下颚 B.嘴巴 C.鼻子
2.Who was Jack?
A.The writer B.A dolphin C.A seaman
3.The dolphin guides the boats for about________.
A.32 years B.9 years C.41 years
4.How do dolphins find their way?
A.They use sounds to find the way.
B.They use their noses to smell the way.
C.They use their eyes to see the way.
d.They use their ears to hear the way.
5.According to the passage,which of the following is NOT right?
A.Dolphins are not fish.
B.Dolphins don’t live in groups.
C.Dolphins are kind and friendly to people.
misszoushan1年前1
wentonggg 共回答了18个问题 | 采纳率83.3%
ABAAB
英语分子成分分析It should be obvious that cetaceans are mammals.It是形
英语分子成分分析
It should be obvious that cetaceans are mammals.
It是形式主语,指代cetaceans.
should be obvious在句子中是什么结构呢.
xiehui07101年前2
fanbaoprada 共回答了16个问题 | 采纳率87.5%
主系表结构.it 作形式主语,情态动词后面跟be动词时用原型,should be.后面的obvious是形容词作表语.that 后面是从句