to do不定式用法思维导图

（1）to do不定式直接做主语

To see is to believe. 眼见为实。

（2）it 做形式主语，to do不定式位于句末作真正的主语

It takes me an hour to go to school by bike every day. 每天，骑自行车去上学花费我一个小时。

（1）to do不定式直接做宾语

I plan to travel abroad this summer vacation. 我打算这个暑假去国外旅行。

（2）当句子中有宾语补足语时，it作形式宾语，to do不定式作真正的宾语

I think it hard to answer the question in one go. 我发现一下子回答出这个问题很难。

His wish is to become an astronaut. 他的愿望是成为一名宇航员。

（1）当定语需要表达将来的含义时，需要由不定式来充当

I have a lot of homework to do. 我有很多要做的作业。

（2）当被修饰词是序数词或最高级或者被序数词或最高级修饰时，非谓语动词作定语需要用不定式形式

He is always the first student to come to the classroom. 他总是第一个到教室的学生。

He was the best man to do the job. 他是做这个工作最好的人选。

（3）当被修饰词是抽象名词时，非谓语动词作定语需要用不定式形式

I have a chance to study abroad. 我有一个出国留学的机会。

（1）作目的状语

To succeed, you should try you best. 为了成功，你必须尽全力。

In order to pass the exam, he has been prepared for two weeks. 为了通过这次考试，他已经准备了两周。

（2）做结果状语

He woke up only to find that he was alone in the house. 他醒来后发现，这个屋子里竟然只有他一个人。

only to do...：竟然......，表示出乎意料的结果。

（3）做原因状语

We all are surprised to see his rapid progress. 看到他取得如此快速的进步，我们都很惊奇。

I am nice to meet you. 见到你，我很高兴。

He often reminds me to keep early hours. 他经常提醒我早睡早起。

We are waiting for James to arrive. 我们等着詹姆斯到来。