题目内容（请给出正确答案）

[单选题]

Animals can live only on plants have already turned from inorganic to vegetable matter

A.A. that

B.B. which

C.C. what

D.D. how

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更多“Animals can live only on plant…”相关的问题

第1题

Plants can live without animals, ________ animals

A.and

B.but

C.so

D.for请帮忙给出正确答案和分析，谢谢!

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第2题

________ human beings ________ animals can live without air.A.Not only…but alsoB.Both…a

________ human beings ________ animals can live without air.

A.Not only…but also

B.Both…and

C.Either…or

D.Neither…nor

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第3题

Peppeberg’s work with Alex was intended to prove that animals. A． do have thou

Peppeberg’s work with Alex was intended to prove that animals .

A． do have thoughts

B． can learn to speak

C． can become man's friends

D． do live long lives

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第4题

Modern zoos are very different from zoos that were built fifty years ago.At that time

, zoos were places (1) people could go to see animals from many parts of the world.They animals lived in cages that were made (2) Concrete with iron bars, cages that were easy to keep clean.

Unfortunately for the animals, the cages were small and impossible to hide in.the zoos environment was anything (3) natural.Al though the zoo keepers took good care of the animals and fed them well, many of the animals did not thrive: they behaved in strange ways, and they often became ill

In modern zoos, people can see animals in more natural habitats.The animals are(4)more freedom in large areas so that they can live more comfortably as they would in nature Even the appearance of zoos has changed, trees and grass grow in the cages, and streams of water flow (5) the areas that animals live in.(完型填空)

A.Of

B.But

C.Where

D.Over

E.Given

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第5题

完型填空Modern zoos are very different from zoos that were built fifty years ago. At that time, zoos were places 1 people could go to see animals from many parts of the world.

完型填空Modern zoos are very different from zoos that were built fifty years ago. At that time, zoos were places __1 __people could go to see animals from many parts of the world. The animals lived in cages that were made__ 2 __concrete with iron bars, cages that were easy to keep clean.

Unfortunately for the animals, the cages were small and impossible to hide in. The zoo environment was anything but natural. __3 __the zoo keepers took good care of the animals and fed them well, many of the animals did not thrive; they behaved in strange ways, and they often became ill.

In modern zoos, people can see animals in more natural habitats. The animals are given more __4__ in large areas so that they can live more comfortably as they would in nature. Even the appearance of zoos has changed. Trees and grass grow in the cages, and streams of water flow __5 __the areas that animals live in.

1.A. although B. where C. of D. freedom E. through

2.A. although B. where C. of D. freedom E. through

3.A. although B. where C. of D. freedom E. through

4.A. although B. where C. of D. freedom E. through

5.A. although B. where C. of D. freedom E. through

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第6题

Fish are animals that live in water. They live in almost any place【11】there is water. Some

are found in lakes, other fish live in the sea. Most fish never【12】water. There are about 21,000 kinds of fish. One kind might not look like another. Some fish are very small. The smallest one is no bigger than a fly. Others are very big. The biggest fish can【13】to 60 feet. One kind of fish looks【14】it has a little horse's head. It is called a sea horse. It doesn't swim very well. A sea horse is mostly pushed along by the【15】water. What does it do when it wants to stay in one place？ It takes hold of plants with its little tail.

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第7题

Most animals have little connection with animals of different kind, unless they hunt t

hem for food. Sometimes, however, two kinds of animals come together in a partnership (伙伴关系 ) which does good to both of them. You may have noticed some birds sitting on the backs of sheep. This is not because they want a ride, but because they find easy food in the parasites (寄生虫 ) on sheep. The sheep allow the birds to do so because they remove the cause of discomfort. So although they can manage without each other, they do better together.

Sometimes an animal has a plant partner. The relationship develops until the two partners cannot manage without each other. This is so in the corals (珊瑚 ) of the sea. In their skins they have tiny plants act as "dustman", taking some of the waste products form. the corals and giving in return oxygen which the animal needs to breathe. If the plants are killed, or are ever prevented from lighting so that they cannot live normally, the corals will die.

1、Some birds like to sit on a sheep because ().

A、they can eat its parasites

B、 they depend on the sheep for existence

C、 they enjoy traveling with the sheep

D、 they find the position most comfortable

2、The underlined word "they" in the last sentence of the first paragraph refers to ().

A、birds and parasites

B、birds and sheep

C、parasites and sheep

D、sheep, birds and parasites

3、What does the second paragraph mainly discuss？ ()

A、Some animals and plants depend on each other for existence.

B、 Some animals and plants develop their relationship easily.

C、 Some plants depend on each other for foo

D、 Some animals live better together.

4、What does this article talk about？ ()

A、Two kinds of animals for a partnership.

B、Most animals only have connection with animals.

C、The connection between the living things.

D、Corals have some connection with plants.

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第8题

You know that some birds and bugs can fly. But did you know that there’s another anima

l that can do this？ It has wings like a bird. But it doesn’t look like a bird. It’s a bat.Bats have fur mostly all over, but not on their wings. Some bats have black, brown, red, or yellow fur. These live in dark places, like caves. Other bats live in trees. Many of these bats are part white and part another color. Some of them are green.There are more than 900 kinds of bats. The biggest ones are called flying foxes. Their heads look like little brown fox heads. The wings of these bats can be over 5 feet across. But other kinds can be very little. The wings of the smallest bats are only 1/2 foot across.In the day, bats hang by their feet and sleep a lot. At times they clean their fur. Some of the time they care for their babies. Mostly they sleep. But when the sun goes down, they begin to move. At night bats fly around. They try to find food. Bats eat fruit, bugs, plants, fish, and flowers.Some bats use their good hearing to find things in the dark. First they make sounds. The sounds jump off anything around the bats. Then these sounds come back, so the bats can hear just where the thing is. They can fly right to it. That’s how they find things to eat.

1.According to the passage a bat is ().

A.an animal

B.a plant

C.a bird

D.food

2.From the passage we know that ().

A.there are as many as 900 kinds of bats in the world.

B.Bats with brown and red fur live in trees, while bats with green fur live in caves

C.bats are blind but have good hearing

D.the wings of the biggest bats can be exactly 5 feet across

3.The word “flying fox” in paragraph 3 means ().

A.red foxes flying high

B.the biggest bat

C.a kind of fierce animal recently discovered

D.fox-like animals with big wings

4.According to the passage the way bats find food is ().

A.to fly around it at night

B.to jump off anything around them

C.as the same as that of most other animals

D.to use their good hearing in the dark

5.Which of the following is NOT true according to this passage？()

A.All dark bats live in the dark places.

B.In the day bats sleep a lot and look for foods at night.

C.Bats eat more fish and fruit than they eat bugs.

D.Bats can hang on the wall by their feet.

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第9题

Zoos are among mankind's oldest institutions, dating back at least 4,500 years, and probab

ly more. Across the world they have brought together and displayed live wild animals for people to look at and over the years hundreds of millions have. Any institution with so long a history and so universally attended must reach something in people deeper than idle curiosity. Since it is fashionable to speak of roots today, it might be suggested that zoos allow us to stay in touch with our most primitive roots in a primeval world where human survival depended on knowing the shapes and habits of wild animals. So important were wild creatures to our distant ancestors that they were the most frequent subjects of paintings on cave walls, formed the basis for virtually all early religions, and were in numerous instances worshipped as gods.

Now our survival is threatened more by what we ourselves have worked, and by the stresses of living among these creations, than it is by wild animals to whom we relegate less and less living space with each passing year. In this world the need for good zoological gar-dens is urgent. The exponential growth of human population and the ever-increasing sprawl of cities does more than rob land from wildlife: it pushes the animals father away from city dwellers. People live in brick, concrete, and glass environments where they lose all touch with wilderness; children grow up who have never tried to catch a frog, never seen a hawk soar or a deer step daintily into a forest clearing—let alone watched a herd of elephants amble across the river or a pride of lions stalk prey.

People who have the time and money can take an occasional trip to the remaining wilderness and find, in places where wild animals still live, the renewal of spirit that comes from prolonged visits to wild country. For millions of others who are unable to leave the cities or can't afford to, good zoos laid out among plants and trees can bring what conservationist Lan Player calls "a taste of wilderness''. Perhaps more important in the long run, zoos can help give deprived people an awareness that we share the world with many other animals and should have a decent regard for their worth and right to live. If zoos did no more than accomplish these two ends, they would serve a noble purpose.

As it happens, however, today's zoos can do far more. They can become breeding centers for those wild species whose continued existence has become precarious. The team "captive breeding" has been used to describe this new role of zoos, and this book describes the effort the most important task that zoos have yet undertaken.

In the second sentence of the first paragraph, "hundreds of millions" refers to the great number of_____ .

A．mankind's various institutions

B．zoos across the world

C．live wild animals displayed

D．people who have visited zoos

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第10题

CLife in the Clear Transparent animals let light pass through their bodies the same way

Life in the Clear

Transparent animals let light pass through their bodies the same way light passes through a window. These animals typically live between the surface of the ocean and a depth of about 3，300 feet—as far as most light can reach. Most of them are extremely delicate and can be damaged by a simple touch. Sonke Johnsen， a scientist in biology， says， “These animals live through their life alone. They never touch anything unless they’re eating it， or unless something is eating them.”

And they are as clear as glass. How does an animal become see-through？ It’s trickier than you might think.

The objects around you are visible because they interact with light. Light typically travels in a straight line. But some materials slow and scatter（散射） light， bouncing it away from its original path. Others absorb light， stopping it dead in its tracks. Both scattering and absorption make an object look different from other objects around it， so you can see it easily.

But a transparent object doesn’t absorb or scatter light， at least not very much， Light can pass through it without bending or stopping. That means a transparent object doesn’t look very different from the surrounding air or water. You don’t see it ————you see the things behind it.

To become transparent， an animal needs to keep its body from absorbing or scattering light. Living materials can stop light because they contain pigments（色素） that absorb specific colors of light. But a transparent animal doesn’t have pigments， so its tissues won’t absorb light. According to Johnsen， avoiding absorption is actually easy. The real challenge is preventing light from scattering.

Animals are built of many different materials————skin， fat， and more————and light moves through each at a different speed. Every time light moves into a material with a new speed， it bends and scatters. Transparent animals use different tricks to fight scattering. Some animals are simply very small or extremely flat. Without much tissue to scatter light， it is easier to be see—through. Others build a large， clear mass of non-living jelly-lie（果冻状的）material and spread themselves over it .

Larger transparent animals have the biggest challenge， because they have to make all the different tissues in their bodies slow down light exactly as much as water does. They need to look uniform. But how they’re doing it is still unknown. One thing is clear for these larger animals， staying transparent is an active process.

63. According to Paragraph 1， transparent animals_______.

A.stay in groups

B.can be easily damaged

C.appear only in deep ocean

D.are beautiful creatures

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