Infinitives不定式

1、 Infinitives 不定式不定式一一.The usage of Infinitives(不定式不定式的句子成分的句子成分) To see is to believe. Its important to learn English well. My job is to help the patient. Your task is to clean the classroom. The workers demanded to get better pay. I found it necessary to talk to him again. The teacher told me to cl

2、ean the blackboard. I expect you to give me some help. He has a lot of homework to do . He is looking for a room to live in . I came here to see you. He got up early so as not to miss the train.不定式作主语不定式作主语重难点重难点1？ To master a foreign language is necessary. =Its necessary to master a foreign languag

3、e. 避免句子头重脚轻，不定式作主语时通常避免句子头重脚轻，不定式作主语时通常用用it 作形式主语。作形式主语。不定式作宾语不定式作宾语重难点重难点2？ I think it useful to learn Eglish well. I find it important to have breakfast in the morning. 不定式作宾语太长时通常用不定式作宾语太长时通常用it 作形式宾语。作形式宾语。常常这种用法被忽略，学生习惯用常常这种用法被忽略，学生习惯用I think it is useful to learn English well.不定式作定语不定式作定语考点考点1

4、 Have you got anything to say? Hes looking for a room to live in. 不定式作定语时，不定式作定语时，不定式若是不及物动词不定式若是不及物动词时，不要忘记介词时，不要忘记介词。不定式作状语不定式作状语考点考点2 目的状语目的状语: 常用的结构常用的结构to do; in order to do, so as to do, so/ such as to do, etc. I come here to say good-bye to you. 结果状语结果状语: 常与常与only , enough 或或too连用连用。 He studi

5、ed hard only to fail the exam. He is old enough to go to school.不定式作宾补不定式作宾补考点考点3 Let the world talk. He often helps me do my homework. I saw her enter the room. She was seen to enter the room. 在在make, let, see, hear, watch, notice, have.等使役或感官动词后作宾语补足语等使役或感官动词后作宾语补足语的不定式省略的不定式省略to，但，但若变为被动语态时不若变为被动

6、语态时不定式定式to会还原会还原。 不定式省略不定式省略to的其他情况的其他情况考点考点4 1. The lady can do nothing but give in. The lady has no choice but to give in. 有介词有介词but, except 且前面有实义动词且前面有实义动词do时，时，不定式不带不定式不带to，否则要带，否则要带to. 2. 不定式作表语时，主语部分有实义动词不定式作表语时，主语部分有实义动词do的形式，也可省略的形式，也可省略to。 All we can do now is (to) wait for him. What we mu

7、st do is reduce the use of energy. 不定式的时态不定式的时态考点考点5（重中之重）（重中之重） (1).They pretended _.(看不看不见我们见我们) (2). He pretended _. (正在正在睡觉睡觉) (3). She pretended _.(已经知道了已经知道了) (4). Were happy _.(一直与你工作一直与你工作)not to see usto be sleepingto have known it beforeto have been working with you动名词与不定式的比较动名词与不定式的比较 Smo

8、king is forbidden in the office. To finish the work by tomorrow is not an easy job. My purpose is to develop a good habit. I like watching TV. I like to watch TV tonight.既可接动名词又可接不定式作宾语既可接动名词又可接不定式作宾语的动词的动词考点考点6 接不定式做宾语的动词，如接不定式做宾语的动词，如afford, expect, long, manage 接动名词作宾语的动词，如接动名词作宾语的动词，如avoid, mind

9、, fancy, risk, suggest 既可接动名词又可接不定式作宾语的动词，既可接动名词又可接不定式作宾语的动词，而意思一样，如而意思一样，如begin/start （以上，不可能全抄，见一个记一个）（以上，不可能全抄，见一个记一个）v.+v.ing+ to domean意味着，意味着， 意思是意思是打算做某事，故意干某打算做某事，故意干某事事forget忘记曾经做过某事（动作已忘记曾经做过某事（动作已经发生）经发生）忘记去做某事（动作还忘记去做某事（动作还未发生）未发生）remember 记得曾经做过某事（动作已记得曾经做过某事（动作已经发生）经发生）记得要去做某事（动作记得要去做某

10、事（动作还未发生）还未发生）regret对已经做过的事懊悔对已经做过的事懊悔对将要发生的事感到遗对将要发生的事感到遗憾憾try尝试去做某事尝试去做某事设法去做某事设法去做某事stop停止做某事停止做某事停下来去做另外一件事停下来去做另外一件事go on继续做同一件事继续做同一件事做完某事后接着做另外做完某事后接着做另外一件事一件事Do the exercise 3 on Page49 (textbook) more exercise1.My teacher was made _(give up) his teaching because of poor health.2.Betty was t

11、he first _(come)3.Mary seemed_（tell) about it, because she looked so angry.4.He hurried to the station only _(tell) that the train had left.5.We could do nothing but _(wait).6.He had not choice except _(wait).7.I have lots of things _(deal with)8.Im going to the post office. Do you have anything _(s

12、end)? 9.I got Mary _(lend) me some money.10. Im sorry _(keep) you waiting for so long.to give upto cometo have been toldto deal withto be sentto lendto have keptto be toldwaitto wait11. Little Jim should love _(take) to the theatre this evening.12. Charles Babbage is generally considered _ (invent)

13、the first computer.13. I would love _(go) to the party last night but I had to work extra hours to finish a report.14. The boy pretended _(read) when his mother entered.15. I would rather starve to death than _(beg) for food.16. We find it impossible for the work _ (finish) ahead of time.17. The sentence w