It’s very important that we all recycle (再利用). In nature, everything ___26___ again. For example, when an animal dies, it becomes ___27____ animal’s food. Nothing is wasted. But humans have created things like plastic bags ___28___ can’t be broken down by nature. Our rubbish kills animals and __29___ water and soil. ___30___ we continue making too much rubbish, the problem will only get worse. If nature can’t reuse the rubbish, we must recycle __31__.

We should clean up the rubbish we’ve made because nature can’t.

Recycling is also the right thing to do for another reason. The earth is rich in natural materials like water and trees, __32 __ these materials are not endless. We use up our natural materials much _ _33 __ than the earth is able to reproduce them. For example, each year we cut __34 __ more that 6,000 square miles of forest. But it takes an average of 25 years for a new tree __35__.

Recycling can help us save the earth, so let’s take action right now.

1.A. use                B. using               C. is used             D. used

2.A. another             B. other               C. others              D. the other

3.A. who               B. which               C. how               D. where

4.A. pollutes            B. polluted              C. polluting           D. is polluted

5.A. When              B. Whether             C. Why               D. If

6.A. them               B. their                 C. it                 D. itself

7.A. but                B. so                   C. and               D. or

8.A. fastly              B. fast                  C. taster              D. fastest

9.A. out                B. down                C. in                 D. up

10.A. grows              B. for growing           C. growing           D. to grow

阅读理解

High in the mountains, and deep in the forest, lives a lake with many plants and animals in and around her. The plants and animals have enough food and clean water to keep them healthy. The wind carries pure air, and the rain comes down clear and clean.

But recently, Lucy Lake and her friends haven’t been feeling very well. All the plants and animals get together to talk about the problem. “Why are we sick?” “What can we do?” ask all of them. No one has any answers.

Just then two hikers appear. The animals tell them about their problems. “Can you help us?” they ask. “Yes,” one hiker says. “I think it’s because of acid rain.”

“Acid rain comes from chemicals(化学物质) in the air. The pollution comes from factories, cars and trucks.”

“So, although I don’t want to, I help the pollution travel through the air!” says the wind. “And I carry it to the land!” cries the rain. 

“If you can help us think of some solutions(解决方法), we will send a message to tell people how to clean up our environment,” one hiker says. 

With the help of the plants and animals, the two hikers make a list of ideas for saving Lucy Lake and her friends.

Time passes, and the forest and lake begin to feel a little better.

The next time the hikers climb up the mountains to Lucy Lake, they smile at what they find. “We’re glad things have started to change,” one hiker says. “And we’re glad you helped us make a difference,” says the other.

1.The underlined word “pure” can be replaced by “____”.

2.The two hikers are most probably ____.

3.____ have (has) nothing to do with the cause of acid rain.

4.The underlined word “you” refers to (指) ____. 

5.Which of the following is NOT true?

High in the mountains, and deep in the forest, lives a lake with many plants and animals in and around her. The plants and animals have enough food and clean water to keep them healthy. The wind carries pure air, and the rain comes down clear and clean.
But recently, Lucy Lake and her friends haven’t been feeling very well. All the plants and animals get together to talk about the problem. “Why are we sick?” “What can we do?” ask all of them. No one has any answers.
Just then two hikers appear. The animals tell them about their problems. “Can you help us?” they ask. “Yes,” one hiker says. “I think it’s because of acid rain.”
“Acid rain comes from chemicals(化学物质) in the air. The pollution comes from factories, cars and trucks.”
“So, although I don’t want to, I help the pollution travel through the air!” says the wind. “And I carry it to the land!” cries the rain. 
“If you can help us think of some solutions(解决方法), we will send a message to tell people how to clean up our environment,” one hiker says. 
With the help of the plants and animals, the two hikers make a list of ideas for saving Lucy Lake and her friends.
Time passes, and the forest and lake begin to feel a little better.
The next time the hikers climb up the mountains to Lucy Lake, they smile at what they find. “We’re glad things have started to change,” one hiker says. “And we’re glad you helped us make a difference,” says the other.

1. 1.

   The underlined word “pure” can be replaced by “____”.

   1. A.
      polluted
   2. B.
      clean
   3. C.
      cold
   4. D.
      cool
2. 2.

   The two hikers are most probably ____.

   1. A.
      scientists
   2. B.
      teachers
   3. C.
      doctors
   4. D.
      reporters
3. 3.

   ____ have (has) nothing to do with the cause of acid rain.

   1. A.
      The rain
   2. B.
      Human beings
   3. C.
      The wind
   4. D.
      The plants and animals
4. 4.

   The underlined word “you” refers to (指) ____. 

   1. A.
      Lucy Lake
   2. B.
      the plants and animals
   3. C.
      one of the two hikers
   4. D.
      the wind and the rain
5. 5.

   Which of the following is NOT true?

   1. A.
      Acid rain is very harmful only to plants and animals.
   2. B.
      Human activities are the main cause of acid rain.
   3. C.
      Acid rain can make the living things in the environment get sick.
   4. D.
      We should clean up our environment to protect us against acid rain.