Unit one 1. To find a best friend is difficult.2.I need to sleep for 8 hours every night.3.I asked him to come over .4.I have an important meeting to attend.5.His aim was to cheer me up.6.You need to apologize quickly to avoid losing a good friend.主语宾语宾语补足语定语表语状语 1. the to-infinitive used as the subjectTo obey law is everyone's duty.To talk with your mouth full is rude.不定式作主语，谓语动词用单数To find a best friend is difficult.It is difficult to find a best friend.主语太长时，用 it 作形式主语 1.Is ________ necessary to complete the design before National Day? A. this B. that C. it D. he 2. To do as many exercises as possible ______necessary before exam. A. are B. is C. have D. has 3. It’s a good habit ______ breakfast very day. A. had B. have C. has D. to have[ 典型例题 ] 2. the to-infinitive used as the objectHe managed to solve the problem by himself.Amy wants to know more about the film. 常见的后接不定式作宾语的动词有： decide/determine, learn, want ,expect /hope /wish, refuse, manage, care, pretend, offer, promise, choose, plan, agree, ask /beg, help… He find it difficult to learn Chinese. We think it important to master a foreign language.???不定式后有形容词或名词，通常把不定式放后面， it 作形式宾语I wonder who to invite.I don’t know what to say.一些动词可以跟 what/how 或其它疑问词 + 动词不定式结构作宾语 The two girls are so alike that strangers find _______ difficult to tell one from the other. (2011 山东 ) A. it B. them C. her D. that[ 高考真题 ] 3. the to-infinitive used as the object complement:I'd like you to keep everything tidy.The teacher asked us to finish the work today.Tell Jack to close the window, please.advise, allow, forbid,ask, beg, cause, encourage, expe...
