外研版必修3Module4P4GrammarInfinitive(共57张PPT).ppt

不定式的时态 不定式的一般式 to do I am glad to see you. He has decided to give her some money. 表示的动作通常与谓语所表示的动作 或状态同时或者几乎同时发生，或是 在它之后发生。 不定式的进行式to be doing I am very glad to be working with you. He pretended to be working hard when his boss passed him. 表示的动作通常与谓语动词表示的动 作同时发生。 不定式的完成式 to have done He happened to have seen the film before. The novel is believed to have been translated into Chinese. 不定式所表示的动作发生在谓语动作 或状态之前。 He wanted to have met you at the airport, but he didn’t get there in time. 表示过去没有实现的期待或者计划 hoped, promised, wanted, wished, expected, planned… 主动语态 to do 被动语态 to be done It is an honor for me to be invited to attend the meeting. Everyone likes the hero to be praised. We asked him to stay till the next day, but he refused to. Are you a teacher? Yes, and I have to be. What we want to do now is lie down and have a good rest. I didn’t say anything but to make a gesture. 1. prefer n. (doing) to n. (doing) 2. prefer to do sth. rather than do sth. 3. would rather do 4. would rather + 句子（虚拟语气） 5. advise/allow/permit/forbid sb. to do advise/allow/permit/forbid) doing 几对易混淆的词组： stop to do sth. 停下来去做某事 doing sth. 停止做某事 forget to do sth. 忘记去做某事 doing sth. 忘记已做了某事 Homework 8. 作结果状语 不定式作结果状语表示出乎意料的结果, 且不定式前常有only, never, 强调惊讶或失望。 V-ing作结果状语强调一种必然的因果关系。 He hurried to his house, only to find it had been broken into. I stood there, never to be feeling so stupid. Her parents died, leaving her an orphan. There was a tornado yesterday, causing 100 deaths. 1. 疑问词+不定式的复合结构 1. When to start has not been decided yet. 2. The problem is how to persuade him to change his mind. 3. We must learn what to do in face of difficulties. 4. I wonder if you could tell me how to get to the station. 不定式的复合结构 主语 表语 宾语 宾语补足语 2. 带有逻辑主语的结构 1. It’s kind of you to lend me such a beautiful necklace. 2. It’s important for us to master a foreign language. 3. The first thing for us to do is to clean the room. 主语 主语 定语