Unit1LivingwellPeriod3精品课件1（新人教选修7）.ppt

动词不定式复习; 不定式由“to+动词原形”构成,其否定形式是“not/never to do”,不定式可以带宾语或状语构成不定式短语,没有人称和数的变化,但有时态和语态的变化。不定式可以作主语、宾语、状语、表语和定语，但不能单独作谓语。不定式的逻辑主语有时用“for/of+名词/代词宾格”构成。;;6. A big company has decided to buy it from me. 7. My fellow students have begun to accept me for who I am. 8. I have had to work hard to live a normal life. 9. Some days I am too tired to get out of bed. 10. We must call on local government to give financial assistance to disabled people. ;用法/ 功能;I want to go home. The workers demanded to get better pay. I found it necessary to talk to him again.;The teacher told me to clean the blackboard. I expect you to give me some help. ;I made him do his work.;I have something to say. He has a lot of homework to do . He is looking for a room to live in . There is nothing to worry about.;不定式作定语时，应放在被修饰词的后面，而且放在其他后置定语之后。;2. something, anything, nothing, everything等复合不定代词常用不定式做后置定语。;常用的结构：to do ; in order to do, so as to do, so/ such …as to do, etc. enough to , only to , too….to…,;(7).独立结构;; 后接不带to的不定式做宾语补足语的动词有: let, hear, have , make ,see, observe, feel, watch, notice 等. The policeman saw a child play in the street.;关于小品词to的省略 ; 不定式与疑问词who,which, when, how, what等连用，在句中起名词作用，可充当主语、表语、宾语等。;固定句型:;不定式做真正主语的两个特殊句型;不定式语法?不定式的时态和语态;不定式语法? 不定式的时态和语态;不定式语法? 不定式的时态和语态;不定式语法? 不定式的时态和语态;(1).They pretended not to see us.;三、不定式的主动形式表示被动;4．在“with+n+to do”结构中。例如：With nothing to do，he lay in bed．With so many exercises to do，I cant go to the cinema．5．当不定式的逻辑主语在句中出现时。例如：I have a letter to type today．(I是to type的逻辑主语)Do you have anything to say? (you是to say的逻辑主语)6．当不定式隐含在for sb to do结构中时。例如：This is the best book to read (=for us／you to read)．The important thing to do is to lock the door when we leave the house．7．一些作表语用的不定式的主动形式。常见的这类动词有let(出租)，rent，hire，blame等。例如：The house is to let．I felt l was to blame;如果主要谓语所表示的动作（或情况）发生时，不定式所表示的动作正在进行，这时，不定式就要用进行式。; 如果不定式所表示的动作在谓语所表示的时间之前一直在进行，就需要用完成进行式，如： They are said to have been collecting folk songs in Yunnan. She wis