4.My parents left home three days ago.

　They have not come back yet.

　My parents____ from home for three days.

3.People plant many young trees on both sides of the street each year.

　Many young trees are ____ on ____ sides of the street each year.

2. Can you show me the way to the post office?

　Can you tell me _____ get to the post office?

　同义型句型转换即是用另一种方式来表述与原句相同的句意，也称作同义句转换，主要考查学生对句型及词汇的掌握情况。

　[真题引导1]

　I prefer walking there to going by bus.

　I prefer to walk there ___ by bus.

　[答案与解析]

　该题考查prefer...to...与prefer...rather than...这两个句型的转换。前者后接动词时用V.+ing形式，而后者则接不定式，并且rather than后的不定式符号要省略。答案：rather than go。

　[真题引导2]

　It took Mary two weeks to prepare for the exam.

　Mary ____ two weeks ___ for the exam.

　[答案与解析]

　该题考查的是表示“花费时间做某事”的两个句型的转换，take常用的句型是：it takes +时间 + to do...；而spend却是：sb +spend + 时间 + (in)doing...。答案：spent， in preparing。

　[真题引导3]

　I always get up before six o'clock in my school days.

　I __ get up ______ six o'clock in my school days.

　[答案与解析]

　根据原句的意思，只有在第二句的两个空白处分别填入never与after，这样才能表达出与第一句相同的含义。这里要注意always的否定副词是never。答案：never，after。

　[真题引导4]

　The children are too tired to walk farther.

　They are_____ tired ____they ____ walk farther.

　[答案与解析]

　含有too...to的简单句常和so...that 引导的复合句互相转换。但是too...to的本身是否定意义，so...that从句要改为否定。答案：so, that, can't。

　[真题引导5]

　The girl left her home a few days ago, she has not come back yet.

　The girl has____ from her home for a few days.

　[答案与解析]

　第一句意思为“女孩几天前离开家，她现在还未回来”。根据句意可知应用现在完成时。for a few days表示一段时间，在完成时中只能与延续性动词搭配，而leave是非延续性动词。答案：been away。

　[巩固训练]

1. They say that Mr. Liu can speak German.

　_____ that Mr. Liu can speak German.

10.These are beautiful flowers. →

9. He told us a very interesting story yesterday. →

8. It’s dangerous to climb the tree. →

7. He has a large garden. →

6. It is hard work.→

5. Linda is watching carefully. →