摘要:考点1 冠词1.We can never expect bluer sky unless we create less polluted world. A.a; a B.a; the C.the; a D.the; the

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Animals

    1 ? Animals are natural resources. People have wasted these resources all through our history(合并句子).

   Animals have been killed for ? 2 ?(they) fur and feathers, for food, for sport, and simply because they were in the way. Thousands of kinds of animals have disappeared from the world forever. Hundreds more are ? 3 ?(介词) the danger list today. About 170 kinds in the United States alone are considered in danger.

  Why should people care?? 4 ? Because we need animals and because once they are going, there will never be any more.(改正错误)

   Animals are more than just beautiful and ? 5 ?(interest).They are more than just a source of food. Every animal has its place in the balance of nature.? 6 ?(Destroy) one kind of animal can create many problems.

   For example, when farmers killed large numbers of hawks, the farmers' stores of corn and grain were destroyed by rats and mice. Why?? 7 ?(连词) hawks eat rats and mice. With no hawks to ? 8 ?(动词短语) their numbers, the rats and mice multiplied(繁殖)quickly.

   Luckily, some people are working to help save the animals. Some groups raise money to let people know about the problem. And they try to get the governments to pass laws protecting animals ? 9 ?(介词短语).

  Quite a few countries have passed laws. These laws forbid (禁止) the killing of any animals or plants on the danger list. Slowly,? 10 ?(冠词) number of some animals in danger is growing. 查看习题详情和答案>>

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