答案与简析：

　　76. famous前加上a。 （名词数）。 77. 正确 78. we前面加when，引导一个时间状语从句。（句子成分多分析） 79. them→us （逻辑错误须关注） 80. visiting→visited（非谓动词细辨别） 81. picture→pictures（名词数） 82. passes→passed（动词形） 83. 去掉down（习惯用法要记住） 84. and→but（but, and, or和so） 85. 去掉at（句子成分多分析 / 习惯用法要记住）。

 (一)

Most families in China hoped their single children will          76．_______

have a happy future, so they are very strict in their children.  77．_______

So do teachers in schools! Many children are given so much       78．_______

homework that they have hardly any spare time have sports.       79．_______

The children are forbidden to do anything but to study. No       80．_______

wonder so many children are tired of lessons. Some even          81．_______

attack or kill his parents and teachers! I believe many people   82．_______

already read this kind of news in newspapers or magazines.       83．_______

Shouldn't we draw lesson from the accidents? Now our             84．_______

government is making out a plan to solve the education problems. 85．_______

词形变化：

1. straight（副词）______    2. trouble（形容词）______

3. far（比较级）______ 　　  4. distant（名词）______

5. direction（动词）______   6. cross（介词）______

7. thank（形容词）______     8. left（反义词）______

词形变化

1．suitable(动词)______　　　 2．throw(过去式)______

3．regret(现在分词)______　　 4．arrange(名词)______

5．terrible(副词)______　　 　6．advertisement(动词)______

7．agency(复数)______　　   　8．desire(形容词)______

词形变化

1．fly(名词)______　　　　　　 2．skill(形容词)______

3．properly(反义词)______　　　4．freedom(形容词)______

5．curious(名词)______　　　　 6．opposite(反义词)______

7．envious(动词)______　　　　 8．prepare(名词)______