【单选题】【消耗次数：1】
By cutting down trees we ____ the natural home of birds and animals.
①
harm
②
hurt
③
injure
④
damage
参考答案：
复制
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相关题目
【多选题】
______________ , we went home.
①
The problem solved
②
The problem is solved
③
When the problem solved
④
When the problem was solved
【简答题】
We trust that you will give special care to the packing in order to avoid damage in transit.
【多选题】
We were very tired and wanted to get home ____________________ .
①
as soon as possible
②
as quickly as possible
③
as fast as possible
④
as much as possible
【单选题】
We looked for a table to sit down, but they were all ____.
①
reserved for
②
engaged in
③
used up
④
taken up
【单选题】
- Shall we sit up here on the grass or down there near the water?
①
I’d rather stay here if you don’t mind
②
Sorry, I don’t like neither
③
Certainly, why not?
④
Yes, we like these two places
【单选题】
Shall we sit up here on the grass or down there near the water?_________
①
I’d rather stay here if you don’t mind.
②
Sorry, I don’t like neither.
③
Certainly, why not?
④
Yes, we like these two places.
【单选题】
Trees mainly serve man in three important ways: They provide him with wood and other products; they provide him shade; and they help to prevent droughts and floods.Unfortunately, in many parts of the world, man has not realized that the third of these services is the most important．In his eagerness to make money from trees, he has cut them down in large numbers, only to find that without them he has lost the best friends he had. And besides, he is usually too careless to plant and look after new trees. So the forests slowly disappear.This does not only mean that man will have fewer trees. The results are even more serious: for where there are trees, their roots break up soil allowing the rain to sink in and also bind(固定) the soil, thus preventing it from being washed away easily；but where there are no trees, the rain falls on hard ground and flows away, causing floods and carrying away the rich top-soil. When the top-soil is gone, nothing remains but worthless desert.Two thousand years ago，a rich and powerful country cut down its trees to build warships, with which to gain itself an empire．It set up the empire, but, without its trees, its soil became poor and grew weak. When the empire fell to pieces, the home country found itself faced by floods and starvation(饥荒)．Land becomes desert after all trees are cut down because __________.
①
roots of trees break up the soil
②
no tree keeps the rain and protects the top-soil
③
strong winds bring a lot of sand
④
there are too many rainfalls to make it
随机题目
【单选题】
控制系统是指由（ ）组成的具有自身目标和功能的管理系统。
①
控制主体、控制客体和控制载体
②
控制实体、控制客体和控制媒体
③
控制主体、控制客体和控制目的
④
控制主体、控制客体和控制媒体