Question

　Trees are usefully to us in three important ways:         1. ________

　  they give us wood and another products;                     2. ________

　　they give us shade and they help to stopping droughts and floods. 3. ________

　　However, people in many part of the world                   4. ________

　　have not realized that the third benefit                       5. ________

is the more important. A large number of                     6. ________

　　trees have cut down, but new ones                          7. ________

　　haven't been planted. It is really danger                       8. ________

　　for people. Though we do not try to keep the balance of nature,   9. ________

　　we will lose our live environment.                          10. ________

Answer 1

1. usefully→useful。

　  2. another→other。

3. stopping→stop。

4. part→parts。

5. √

6. more→most。

7. have 后加been。

8. danger→dangerous。

9. Though→If。

10. live→living。

解析:

1.be 后接形容詞。

2. another 修飾單數(shù)可數(shù)名詞, other后接復(fù)數(shù)形式。

3.句中to為不定式符號,而非介詞。

4指世界上的許多地方,用復(fù)數(shù)。

5. √

6.語意有最高級的含義,應(yīng)用 the most。

7.trees 是cut down的賓語,故用被動式。

8. dangerous 表"危險的",danger為名詞。

9.用if引導(dǎo)條件狀語從句,表假設(shè)。

10.live用作形容詞多修飾動物,表示"活的、活生生的",living表"生存、生活",living environment 生存環(huán)境。