18.A.He seemed tired last night.

　 B._________ __________ that _______ was tired last night.

17.A.Fish can’t live if there’s no water.

　 B. Fish can’t live ___________ _________ water.

　 C. Fish can’t live __________ there _______ water.

16.A.The boy is too young to go to school.

　 B. The boy is __________ young ________ he __________ do to school.

　 C. The boy isn’t _______ ____________ _________ go to school.

15.A.Mrs Green doesn’t like traveling by plane at all, I think.

　 B.I ____________ think Mrs. Green ___________ traveling a lot.

e.g. 1.She found him a very clever student.

= She found that he was a pretty clever student.

2.The gate is quite wide.　 Two cars can go through it at the same time.

= The gate is so wide that two cars can go through it together.

此类题目需要熟悉一些重要的句型和短语。例如：too… to …; so …that…; not… until…等。还要注意了解相关转换类型，如：without短语与if/ unless条件状语从句的转换；enough to …与so …that …的转换；too…to…,not…enough to…, so…that …not…的相互转换等。

Exercises:

14.A. Manuel usually goes to work by subway, sometimes he rides his motorcycle.

B. Manuel usually ________the subway to work, but at times he goes to work ______ motorbike.

13.A.Tom used a brush to clean his shoes.

　 B. Tom ________ his shoes ____________ a brush.

e.g. 1.Yesterday Mr. King went to New York by air.

　　 = Mr. King flew to New York yesterday.

此类题目关键就是使用恰当的介词短语，还要注意动词时态一致。

Exercises:

12..A. Helen always goes to school on foot.

　 B. Helen always ____________ __________school.

11..A.They didn’t find anything under the desk..

　 B. They _____________ ____________ under the desk.

10..A.All of the questions are easy.

　 B.____________ __________ the questions is _________________.