Question

短文填空

请用适当的词完成下面的短文，每个空只能填写一个形式正确、意义相符的单词。

Trees are useful to man in three very important ways. The first important way is that they provide man ____1.___ food, wood and other products(产品). Trees provide man and animals with food to live __2.__ the earth. It’s not easy ___3._____ man to live on the earth without trees.

The ____4.____ important way is that trees give us shade(树荫). On a hot summer day, people can have __5.____ rest under the shade of a tree after they have walked a long way. You can imagine（想象） __6._____ important the shade of a tree is to man and animals.

The third important ___7.___ is that trees help to prevent droughts（干旱）and floods. However, in many parts of the world, man has _8.____ realized the third important way. He has cut ___9.____trees in large numbers. ___10.____ the end, he finds that he has lost his best friends.

Answer 1