Different kinds of animals have appeared and disappeared throughout Earth’s history. Some animals go extinct because the climate (1)…………changes. The climate may become wetter or drier. It may become warmer or cooler. If the animals cannot change, or adapt, to the new climate, they die.

      Some animals go extinct because they cannot (2)……………… with other animals for food. Some animals go extinct because they are killed by enemies. New kinds of animals are always evolving. Evolving means that the animals are changing (3)…………… from generation. Small differences between parents, children, and grandchildren slowly add up oer many, many generations. Eventually, a different kind of animals evolves.

      Sometimes many of the animals on earth go extinct at the(4)……………time. Scientists call this a mass extinction. Scientists think there have been (5)……………… five mass extinctions in earth’s history. The last mass extinction happened about 65 million years ago. This mass extinction killed off the dinosaurs.

 IV.Choose the correct answer from the four options marked A,B,C or D to complete each of the numbered blanks in the following passage.

WHY DO ANIMALS GO EXTINCT?

Different kinds (18)…………animals have appeared and disappeared throughout Earth’s history. Some animals go extinct (19)………the climate where they live changes. The climate may become wetter or drier. It may become warmer or cooler. If the animals cannot change, or (20) ……… to the new climate, they die.Some animals go extinct because they cannot (21)………. with other animals for food. Some animals go extinct because they are killed by enemies. New kinds of animals are always evolving. Evolving(22)……..that the animals are changing slowly from generation (23)…………generation. Small differences between parents,children, (24)……… grandchildren slowly add up over many, many generations. Eventually,a different kind of animal evolves. Sometimes, many of the animals on Earth go extinct at the (25)………time. Scientists call this a mass extinction. Scientists think there have been at least five mass extinctions in Earth’s history. The (26)………mass extinction happened about 65 million years ago. This mass extinction killed off

Nowadays people are more aware that wildlife all over the world is in danger. Many species of animals are threatened, and could easily become extinct if we do not make an effort to protect them. There are many reasons for this. In some cases, animals are hunted for their fur or other valuable parts of their bodies. Some birds, such as parrots, are caught alive, and sold as pets. For many animals and birds, the problem is that their habitat - the place where they live - is disappearing. More land is used for farms, for houses and industry, there are fewer open spaces than there once were. Farmers use powerful chemicals to help them grow better crops, but these chemicals pollute the environment and harm the wildlife. The most successful animals on earth – human beings – will soon be the only ones left, unless we can solve this problem.

 21. What does the word “extinct” in line 2 mean?

a. dead                                   

b. no longer in existence

c. not in a place because of illness

d. suffering from a mental or physical handicap

  22. This word “this” in line 3 refers to................

a. wildlife

b. danger

c. the fact that people are more aware that wildlife is danger

d. the fact that many species of animals could easily become extinct

  23. According to the passage , one of the reasons that people hunt animals is..................

            a. they want their fur or other valuable parts of their bodies

            b. they want to kill them

            c. they consider this a sport

            d. they want to sell them as pets

  24. Which of the following is not true?

            a. Human beings are the most successful animals on the earth           

            b. If we can solve the problem, we will be the only ones left

            c. Farmers use chemicals in order to grow better crops

            d. Chemicals pollute the environment

  25. What can be the best title of the passage?

            a. Birds Are in Danger!

            b. The Threat to the Environment

            c. The Most Successful Animals

            d. Protect Our Earth!

Nowadays people are more aware that wildlife all over the world is in danger. Many species of animals are threatened, and could easily become extinct if we do not make an effort to protect them. There are many reasons for this. In some cases, animals are hunted for their fur or other valuable parts of their bodies. Some birds, such as parrots, are caught alive, and sold as pets. For many animals and birds, the problem is that their habitat - the place where they live - is disappearing. More land is used for farms, for houses and industry, there are fewer open spaces than there once were. Farmers use powerful chemicals to help them grow better crops, but these chemicals pollute the environment and harm the wildlife. The most successful animals on earth – human beings – will soon be the only ones left, unless we can solve this problem.

1.What is happening to the wild animals?

A.They are in danger.

B.They beecome expensive.

C.More people love them.

D.They die.

2.According to the passage,one of the reasons that people hunt animals is__________.

A.People want to take them to the zoo.

B.They want to kill them.

C.they want to sell them as pets

D.they went their fur or other valuable parts of their boies

3.What does the word 'they' in line 5 refer to?

A.parrots

B.birds

C.animals and birds

D.elephants

4.What is the disadvantage of using more land for farm?

A.People will have more food

B.People will build more houses and industry zones

C.Animals and birds will not have a "house" to live in

D.People are happy with this

5.What can be the tile of the passage?

A.Birds are in danger!

B.The threat to the Environment

C.The most Successful Animals

D.Land pollution

Nowadays people are more aware that wildlife all over the world is in danger. Many species of animals are threatened, and could easily become extinct if we do not make an effort to protect them. There are many reasons for this. In some cases, animals are hunted for their fur or other valuable parts of their bodies. Some birds, such as parrots, are caught alive, and sold as pets. For many animals and birds, the problem is that their habitat - the place where they live - is disappearing. More land is used for farms, for houses and industry, there are fewer open spaces than there once were. Farmers use powerful chemicals to help them grow better crops, but these chemicals pollute the environment and harm the wildlife. The most successful animals on earth – human beings – will soon be the only ones left, unless we can solve this problem.

1.What is happening to the wild animals?

2.According to the passage,one of the reasons that people hunt animals is__________.

3.What does the word 'they' in line 5 refer to?

4.What is the disadvantage of using more land for farm?

5.What can be the tile of the passage?

Wild animals (and wild plants) and the wild places where they live are seriously threatened almost everywhere. One species has become extinct in each year of this century. But many hundreds are now in danger. Lack of attention would lead to the rapid advance of the process of extinction.

Already many kinds of wild animals have been so reduced in number that their role in the ecosystem is forgotten. Animals like the great apes, the whales, seals etc. thought to be in danger of extinction.

But even more important, perhaps than individual kinds of animals and plants, whole habitats are in danger of vanishing: marshes are being drained, and the world forests, especially tropical forests are being cut down to satisfy man’s needs of timber and paper.

What would our world be like if all the wild animals and wild plants vanished? - Would our life still exist then?

1. What would happen to the human beings if the wild life vanished?

A. Many species would quickly become extinct.

B. The human life would be seriously threatened.

C. Species would go on dying out.

D. Tropical forests would be cut down.

2. What is more important than individual kinds of animals and plants?

A. the vanishing of whole habitats. B. the extinction of many species.

D. man’s need of timber and paper. C. the rapid advance of the process of extinction.

3. What does the writer caution us against?

A. cutting down the tropical forests. B. hunting wild animals.

C. draining marshes. D. destroying our environment.

4. What would happen if we cut down forests?

Cutting down forests would cause ……………..

A. the changes of temperature. B. the flood

C. both A and B are correct. D. none are correct.

5. “To threaten” in the passage means …………..

A. to pollute B. to give fear to C. to vanish D. to poison

Word formation:

The days when people would go to a zoo simply for (0. AMUSE) _______ are long ago. Today, when we place greater (1. IMPORT) _______ on the survival of animals in the wild, zoos have duty to inform the public and improve our (2. KNOW) _______ of the environment and the problems faced (3. WORLD) _______ by large numbers of animals. Today's zoos also play a role in the (4. PROTECT) _______ of threatened species, breeding animals for release in the wild. Many zoos also fund (5. SCIENCE) _______ research into animals and their behavior. The way animals are treated in zoos has changed, too. Many intelligent animals suffer from (6. BORE) _______ in captivity and their keepers now try to improve the (7. PSYCHOLOGY) _______ state of the animals in their care. They do this by, for example, providing the animals with a (8. VARY) _______ of different food or by changing the animals' (9. DAY) _______ routine. Although some critics of zoos remain (10. CONVINCE) _______ , there can be no doubt that animals in zoos today enjoy a more comfortable existence than in the past.

I. Read the passage, make questions and answer them.

Wild animals and wild places where they live are seriously threatened almost everywhere. One species has become extinct in each year of this century; but many hundreds are now in danger. Lack of attention would lead to the rapid advance of the process of extinction.

Already many kinds of wild animals have been so reduced in number that their role in the ecosystem is forgotten.

          But even more important, perhaps, than individual kinds of animals and plants, whole habitats are in danger of vanishing : marshes are being drained, and the world forests, especially the tropical forests are being cut down to satisfy man’s need of timber and paper.

          1. Where / wild animals / live ?

          - _____________________________________________

          - _____________________________________________

          2. Why / forests  /  be cut ?

          - _____________________________________________

          - _____________________________________________

          3. What / happen / wild animals / if / forests / disappear?

          - _____________________________________________

          -______________________________________________

II. Use the correct word forms.

          1. Conservation is the _____________ and preservation of natural resources. (safeguard)

          2. Salt has a ______________ effect on food. (preserve)

          3. The fight against ___________ is an important part of conservation. (pollute)

          4. Carbon monoxide is a ______________ gas. (poison)

          5.  ______________ pollution is one of serious problems facing the mankind today. (environment)

6.  ______________ land consists of irrigating deserts, draining swamps and pushing back the sea. (reclaim)

          7. We can conserve our environment by ______________ of waste. (prevent)

          8. Farmers can protect their land by ______________ rotation of crops. (year)

          9. Farmers can help enrich the soil by adding ______________ (fertilize)

          10. Preserving natural resources is a great ______________. (important)