一．用“及物动词+不定式”结构可以将含有that 引导的某些宾语从句的复合句转换成简单句。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“疑问词+不定式“结构可以将某些含有连接代词或连接副词引导的宾语从句转换简单句。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… ”结构可以将含有so… that 引导的结果语从句(否定)的复合句转成简单句。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”结构可以将含有so … that … 引导的结果状语从句（肯定）的复合句转变为简单句。例如： 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”结构可以分别将“It happens that… ”和“It seems that… ”等含有主语从句的复合句转换为简单句。例如： 1. It happened that the teacher saw him playing in class. → The teacher happened...
