Trees are useful to man in three very important ways. The first important way is that they

Trees are useful to man in three very important ways. The first important way is that they provide man with food，wood and other products. Trees provide man and animals with food to live on the earth. It’s not easy for man to live on the earth without trees.
The second important way is that trees give us shade. On a hot summer day，people are eager to（急于）have a rest under the shade of a tree after they have walked a long way. You can imagine how important the shade of a tree is to man and animals.
The third important way is that trees help to prevent droughts and floods. However，in many parts of the world，man has not realized the third important way. He has cut trees down in large numbers. In the end he finds that he has lost the best friends he once had.
【小题1】Is it easy for man to live on the earth without trees?

【小题2】What is the first important way that trees bring us?

【小题3】Where are people eager to rest after they have walked a long way?

【小题4】In the end he finds he has lost the best friends he once had. What does ‘the best friends” here mean?

【小题5】What should we do in order to protect trees?
No, it isn’t.

(答案→)No, it isn’t. 解析：这篇短文讲述的是树木的重要性，他们在三个重要的方面对我们来说是非常有用的。一是树木可以为人类和其他动物提供食物、木材和其他的产品；二是树木可以为我们提供阴凉；三是树木可以防止干旱和洪水。所以保护树木是很重要的。【小题1】根据短文第一段的最后两句话Trees provide man and animals with food to live on the earth. It’s not easy for man to live on the earth without trees可知，树木给人类和动物提供食物，让他们住在地球上。对于人类而言，没有了树住在地球上是困难的。故这个题的答案是否定的。【小题2】根据短文的第一段第二句话The first important way is that they provide man with food，wood and other products可知，树对于人类来说第一个重要的方面是他们为人类提供食物、木材和其他的产品。故由此可知，这个题的答案为They provide man with food, wood and other products。【小题3】根据短文第二段中On a hot summer day，people are eager to　have a rest under the shade of a tree after they have walked a long way.可知，在炎热的夏天，人们在走了很长的路之后，急于在树荫下休息一下。故答案为Under the shade of a tree。【小题4】在短文的最后一段中，作者告诉了我们树的第三个重要的方面，即树木可以防止干旱和洪水。可是在世界上的很多地方，人们没有意识到树的这个作用。他们还是大量的砍伐树木，最后，他们就会失去这个最好的朋友。这里最好的朋友指的就是trees，即树木。【小题5】这是一个开放性的问题，答案并不是唯一的。题目中问到的是为了保护树木，我们应该做些什么。例如我们可以节约用纸，用纸的两面书写；或者在生活中我们要保护树木，故乱砍滥伐，多种树等。

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