Infinitive.ppt

1、Unit Two The Infinitive,The Infinitive,Tenses and Voices,to do,to be doing,to have done,to be done,to have been done,not to do,not to be doing,not to have done,完成时：表示的动作发生在谓语动词表示的动作之前。Im sorry to have given you so much trouble.,一般时：表示的动作与谓语动词表示的动作同时发生， 或之后发生 I plan to attend the meeting to be held t

2、omorrow.,进行时： 谓语表示的动作正发生时，不定式表示的 动作正在进行He pretended to be sleeping when I came in,He seems to have caught a cold.,He is reported to have been elected chairman of the trade union. 据报道他被当选为工会主席。,The Infinitive,Functions:,1. Used as a subject,e.g. _is not easy.,_is difficult.,_is not polite.,= It is no

3、t easy to learn English well.,= It is difficult to work out this problem.,= It is not polite to ask about ones private affairs.,To learn English well,To work out this problem,To ask about ones private affairs,The Infinitive,1. Used as a subject,for + sb.,of + sb.,e.g. It is impossible _ him to give

4、up smoking.,It is easy _ you to read this book.,Its very kind _ you to bring me the dictionary.,It was careless _ him to make many mistakes in the exam.,= Youre very kind to bring me the dictionary.,= He was careless to make many mistakes in the exam.,for,for,of,of,The Infinitive,2. Used as an objec

5、t,1) 动词 + to do,e.g. They are busy preparing _ _. (参加期末考试),We hope _next year. (访问这个国家),2) 动词 + 疑问词 + to do,e.g. I dont know _.,They are learning _.,3) 动词 + I.O. + 疑问词 + to do,e.g. The farmer showed us _.,to take the final,examination,to visit this country,what to do with this rubbish,how to repair

6、cars,how to milk the cow,2. Used as an object,The Infinitive,4) 动词 + it + O.C. + to do,e.g. I find it important to learn a second language.,We think it better to start off early.,5) 介词(but, except) + (to) do,e.g. Seeing the room crowded, I had no choice but to stand in the back.,Seeing the room crow

7、ded, I could do nothing but stand in the back.,I could not but _(choose) to go.,choose,I could not choose but _ (go).,go,I could not help but _ (weep) at the new.,weep,The Infinitive,3. Used as a predicative,e.g. The happiest thing is to have a rest.,The saddest thing is to fail in the exam.,4. Used

8、 as an attribute,e.g. Id like a few books _during the journey.,Henry is a pleasant man _.,I want a bookcase _.,Mary is always the last _ _.,to read,to talk to,to put my books in,to arrive at the,office,The Infinitive,5. Used as an adverbial,e.g. To write novels quickly, the writer bought a computer.,He entered the classroom only to find everyone had gone.,6. Used as an object compliment,e.g. The teacher asked us to clean the classroom.,They are waiting for the school bus to come.,I saw the