根据短文大意选择方框内的单词并用其正确形式填空，使补全后的短

问题填空题

根据短文大意选择方框内的单词并用其正确形式填空，使补全后的短文意思通顺，语法正确，结构完整。

walk, way, without, prevent, easy

     Trees are useful in two important 1  The most important way is that they provide man with  food,
wood and other products. Trees provide food not only for man, but also for animals. 2    trees, many
animals could not live on the earth. It’s not   3 for man to live on the earth, either.
    The other important way is that trees give us shade (树荫) .On a hot summer day, people are eager
to have  a rest under the shade of a tree after 4   along way. You  can imagine how important the
shade of a tree is to   5   man and animals from being exposured  to the sun’s rays.

答案

1 . ways 2. Without 3. easy 4. walking 5. prevent