She took a plane so as to come back soon In order to come back soon, she took a plane She took a plane to come back soon 2)表示结果 动词不定式作状语表示结果,在形式上有时与目的状语一样,但是位于句首的 定是目的状语,位于句末的既可能是目的状语,也可能是结果状语,这时要根据上 下文进行逻辑判断,表结果的动词不定式常与别的副词搭配使用,如:too…to (太……以至不……), only to do(表示与预料相反的结果,意思是“不料,反而, 果”等)。 In 1935 he left home never to return His family was too poor to support him The College Academic Hall is big enough to hold five hundred people He always gets up so early as to catch the first bus He lifted a rock only to drop it on his own feet 3)表示原因 d with joy to hear the My mother was angry to see us dance. We are proud of to be young people of china 4)有些不定式可以用来修饰整个句子,因而可以称作句子状语 To be honest, I just don t like him To tell you the truth, I've never met him To be frank, you are a bad driver 6.不定式作表语 1)不定式有时可以用作表语说明主语的具体内容。 Her ambition was to be a film star Mary's task is to set the table His goal is to be a scientist 2)不定式作表语还可以表示其它东西(如目的)等 This wall is to keep people out of the garden The thing now is to get ahead. The problem was to find the right people for the job 7.不定式的逻辑主语 1)每个不定式可以有其逻辑主语,它可能是句子的主语或宾语,如: I had a lot of letters to write:(是 to write的逻辑主语) I will give you something to read.(you是 to read的逻辑主语) 当句中没有适当的词可作不定式逻辑主语时,可以借助一个由for引导的短语来 表示它的逻辑主语。5 She took a plane so as to come back soon. In order to come back soon, she took a plane. She took a plane to come back soon. 2)表示结果 动词不定式作状语表示结果，在形式上有时与目的状语一样，但是位于句首的 一定是目的状语，位于句末的既可能是目的状语，也可能是结果状语,这时要根据上 下文进行逻辑判断，表结果的动词不定式常与别的副词搭配使用，如：too…to… (太……以至不……)，only to do (表示与预料相反的结果，意思是“不料，反而，结 果”等)。 In 1935 he left home never to return. His family was too poor to support him. The College Academic Hall is big enough to hold five hundred people. He always gets up so early as to catch the first bus. He lifted a rock only to drop it on his own feet. 3)表示原因 They jumped with joy to hear the news. My mother was angry to see us dance. We are proud of to be young people of China. 4)有些不定式可以用来修饰整个句子，因而可以称作句子状语。 To be honest, I just don’t like him. To tell you the truth, I’ve never met him. To be frank, you are a bad driver. 6. 不定式作表语 1)不定式有时可以用作表语说明主语的具体内容。 Her ambition was to be a film star. Mary’s task is to set the table. His goal is to be a scientist. 2)不定式作表语还可以表示其它东西（如目的）等。 This wall is to keep people out of the garden. The thing now is to get ahead. The problem was to find the right people for the job. 7. 不定式的逻辑主语 1)每个不定式可以有其逻辑主语，它可能是句子的主语或宾语，如： I had a lot of letters to write.(I 是 to write 的逻辑主语) I will give you something to read. (you 是 to read 的逻辑主语) 当句中没有适当的词可作不定式逻辑主语时，可以借助一个由 for 引导的短语来 表示它的逻辑主语