用横线画出下列句中的错别字，并改正在句后括号里。

（1）历史的道路，不全是平坦的，有时走到坚难险阻的境界，这是全靠雄健的精神才能够冲过去的。（    ）

（2）觉得在此奇绝壮绝的景界，愈能感到一种冒险的乐趣。（    ）

（3）但这种状美的趣味，没有雄健的精神是感觉不到的。（    ）

（4）黄河以他英雄的气魄，出现在亚州的原野；它表现出我们民族的精神，伟大而又坚强。（  ）  

填入动词的适当形式。

1. Knives are used for _________ (cut) things.

2. Can you finish __________ (read) the book in three days?

3. The doctor was busy __________ (operate) on the boy at that time.

4. Stop _________ (talk) and listen to me carefully.

5. Thank you very much for _________ (help) us.

6. Granny is very ill and she doesn't feel like _________ (eat) anything.

7. The girl enjoys _________ (listen) to light music.

8. Do you remember _________ (buy) me a beautiful skirt on my 13th birthday?

9. We couldn't help _________ (laugh) after we heard the funny story.

10. What about __________ (go) out for a walk?