Question

   Every living thing needs energy. Energy gives all 1 and plants food. Humans are animals and they are 2 machines. If you want to keep the machines run 3 ,you must give them enough energy. The energy may come from other animals. 4 can also come from plants.

    Plants use sunlight to make their own 5 while animals can't. They need to 6 plants to get their energy. So when animals eat plants,like fruits and vegetables,they can get 7 sun's energy than when they eat animals. That's 8 it is good to eat fruits and vegetables.

    Energy is very strong in the sun. It 9 a lot of its strength by the time it goes into a plant. When an animal eats a plant,the energy is even less strong. The animal has also used energy to 10 the plant to eat. In this way it can get enough energy.

1. A. thing   B. animals

   C. people   D. men

2. A. for   B. in

   C. to   D. like

3. A. fast   B. slow

   C. well   D. quickly

4. A. It   B. They

   C. He   D. She

5. A. air   B. food

   C. house   D. decision

6. A. meet   B. see

   C. follow   D. eat

7. A. more   B. less

   C. worse   D. better

8. A. when   B. where

   C. why   D. how

9. A. loses   B. makes

   C. saves   D. gets

10. A. help   B. water

   C. find   D. plant

Answer 1

1. B 2. D 3. C 4. A 5. B 6. D 7. A 8. C 9. A 10. C

导读这是一篇科普说明文。动物的活动需要能量，其能量来自植物或其他动物，植物的能量来自太阳，当动物吃了植物 之后，也就间接地吸取了来自太阳的能量。

详析

1. B由本句中的plants可知，此处指的是动物。

2. D由下一句可知，此处将动物比作机器，故答案为D.

3. C由本句中的enough energy可知，要想让机器运转得好，就得给它足够的能量。

4. A由上一句可知，此处应当指energy ,故用it代替。

5. B植物能够利用阳光为自己制造出食物，而动物就不能，故此处应当是“食物”之意。

6. D由get their energy可知，要想获取能量，动物就得吃植物。

7. A由上一句可知，吃植物要比吃动物获取的太阳能要多。

8. C 结合上一句和本句的“it is good to eat. .. vegetables”可知，此处是解释原因的，故答案为Ct

9. A等到太阳能进入了植物里之后，它就会消耗大量的能量，所以答案为A.

10. C动物需要消耗能量去寻找植物，所以答案为C.

energy n.能量 strength n .力量

障碍句分析

It loses a lot of its strength by the time it goes into a plant.

等到太阳能进人了植物里之后，它就会消耗大量的能量。

这是一个含有状语从句的复合句。

by the time... a plant是一个时间状语从句。