Question

完形填空

　　There are seas, lakes and forests on the earth. There are dries, towns and farms, too. All these things are environments. The environment is everything around you. It can be living, like a forest. It can be non-living, __1__ a rock or a mountain.

　　No living thing can live alone. Every living thing depends on（依靠）__2__ things in its environment. When something changes, it affects something else. If a non-living thing like water becomes __3__ to find, plants will be affected（影响）. If all plants die, the animals that eat plants will be affected.

　　Weather, such as temperature, wind and rain, can change an environment. __4__ can change an environment, too. Some things that people do cause no change or only a small change in the environment. For example, people can __5__ the forest and just travel around. They can cut down only a few trees and still not change the environment very much.

　　On the other hand some things that people do cause __6__ changes. Sometimes they can change a whole environment by cutting down a forest.

　　__7__ changes are bad. If we cut down a forest to build houses or plant crops, this may not be bad. But what would happen if we cut down all trees in all forests __8__ these things or if we didn't save some and plant something else?

　　It is clear that people are able to __9__ an environment. This is why it is important to think about the changes before we make them. Let's all work together to __10__ it clean and healthy.

(1) A．with	B．like		C．on
(2) A．all	B．its		C．other
(3) A．less	B．easy		C．difficult
(4) A．Plants	B．Animals		C．People
(5) A．walk through		B．cut down
C．find out
(6) A．little	B．a lot of		C．a small
(7) A．Not all	B．Not every		C．All
(8) A．to do	B．doing		C．does
(9) A．develop	B．break		C．change
(10) A．change	B．keep		C．have

Answer 1

答案：B;C;C;C;A;B;A;A;C;B