一．用“及物動詞+不定式”結(jié)構可以將含有that引導的某些賓語從句的復合句轉(zhuǎn)換成簡單句。例如：

1. He decided that he would buy a digital camera online.

→He decided to buy a digital camera online.

2. We hoped that we would come back soon.

→We hoped to come back soon.

3. I expect that I shall finish my work by this Sunday.

→I expect to finish my work by this Sunday.

二．用“疑問詞+不定式“結(jié)構可以將某些含有連接代詞或連接副詞引導的賓語從句轉(zhuǎn)換簡單句。例如：

1. I don’t know which one I can buy .

→I don’t know which one to buy.

2. We wonder where we’ll go this Sunday.

→We wonder where to go this Sunday.

3. Could you please teach me how I can search the Internet?

→Could you please teach me how to search the Internet?

三．用“too…to…”結(jié)構可以將含有so…that引導的結(jié)果語從句(否定)的復合句轉(zhuǎn)成簡單句。如：

1. The boy is so young that he can’t look after himself.

→The boy is too young to look after himself.

2. The question is so difficult that I can’t answer it .

→The question is too difficult for me to answer.

四．用“…enough +不定式”結(jié)構可以將含有so …that …引導的結(jié)果狀語從句（肯定）的復合句轉(zhuǎn)變?yōu)楹唵尉?。例如?/p>

1. The girl is so tall that she can reach the apples on the tree.

→The girl is tall enough to reach the apples on the tree.

2. This hall is so large that it can hold 2000 people.

→This hall is large enough to hold 2000 people.

3. The table was so light that the little boy can carry it.

→The table was light enough for the little boy to carry.

五．用“happen + 不定式”或“seem +不定式”結(jié)構可以分別將“It happens that…”和“It seems that… ”等含有主語從句的復合句轉(zhuǎn)換為簡單句。例如：

1. It happened that the teacher saw him playing in class.

→The teacher happened to see him playing in class.

2. It seemed that sharks have been on the earth for thousands of years .

→Sharks seemed to have been on the earth for thousands of years.

3. It seemed that this camera offered the most at the best price.

→This camera seemed to offer the most at the best price.

六．用“in order +不定式”或“so as +不定式”結(jié)構可以將含有so that 引導的目的狀語從句的復合句轉(zhuǎn)換為簡單句。如：

1. She decided to buy a camera online so that she could receive it soon.

→She decided to buy a camera online in order to receive it soon.

→She decided to buy a camera online so as to receive it soon.

2. I went over my composition again and again so that I couldn’t make any mistakes.

→I went over my composition again and again in order not to make any mistakes.

→I went over my composition again and again so as not to make any mistakes.

3. Miyoko bought a camera so that she could take pictures in Beijing.

→Miyoko bought a camera in order to take pictures in Beijing.

→Miyoko bought a camera so as to take pictures in Beijing.

七．在某些作表語的形容詞后面加不定式可以將某些含有狀語從句的復合句轉(zhuǎn)變成簡單句。例如：

1. I was glad when I heard the good news .

→I was glad to hear the good news.

2. Tom’s parents were very surprised as they knew all about it.

→Tom’s parents were very surprised to know all about it.