阅读短文内容，用放框内所给词的适当形式填空。（5分）

用方框中词的适当形式填空。(5分）

用方框中所给单词或词组的适当形式填空，每个词限用一次。(5分)

用方框中所给的单词的适当形式填空，每个单词限用一次。

根据短文大意选择单词并用其正确形式填入空白处,使补全后的短文意思通顺,语法正确,结构完整.（5分）
walk      way     without     prevent     easy
Trees are useful in three 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 second 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  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   5   droughts and flood. However, in many parts of the world, man hasn’t realized it. He has cut trees down in large numbers. In the end, he finds that he has lost the best friends he had.

1. John always does his homework ______________ in order not to make any mistakes.
2. It’s ______________ to find any excuse when you do something wrong.
3. The factory makes a new type of cars which produces less air ______________.
4. All the victims were saved and taken to ______________.
5. We all know Mother’s Day is on the ______________ Sunday of May.            

先阅读短文，掌握其大意，然后从方框给的词中选出最恰当的10个，并用其适当形式填空，每个词只限用一次。（10分）

先阅读短文，然后用下面方框中所给的单词或短语填空，使全文在逻辑上正确。（提示：选项中有一个是多余的。）

从下面方框中选择适当的词填入短文中，使短文通顺正确（注意有些词要用适当的形式）。方框中有两个多余的词。

用所给单词的适当形式填空。每个单词限用一次。