单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,Book 7 Unit 1 Gramm revision:The infinitive,语法复习：动词不定式,Book 7 Unit 1 Gramm revision:,Warming up,Demonstration,My experience yesterday morning:,I planned to go to my office at 7 oclock,but my alarm clock failed to work.,Discussion in pairs:,Whatre the differences between the preposition“to”and“to”in an infinitive?,(both on forms and meanings),Give two examples to show the differences?,Warming upDemonstration,考情分析,动词不定式作为非谓语的一种形式，在英语中被 广泛应用。在语法填空和改错中是常考的考点，考察学生对使用动词不定式的句型掌握情况，以及根据所作的不同成分使用不同的形式。,考情分析动词不定式作为非谓语的一种形式，在英语中被 广泛应用,What are the voices and the tenses of infinitive?,The tenses of infinitive,一般式：,to do sth,进行式：,to be doing,完成式：,to have been done,The voices of infinitive,active:to do sth,passive:to be done,to have been done,What are the voices and the te,What form of an infinitive should be used in a sentence?,不定式的时态的选择要根据它和主动作（常是句子的谓语动词）的关系，和主动作同时或在主动作之后发生则用一般式，在主动作之前发生用完成式。,The engine just wont start.Something seems _(go)wrong with it.,to have gone,What form of an infinitive sho,不定式的语态：逻辑主语,不定式,语态,的选择要根据它的逻辑主语，不定式作不同成分时，其逻辑主语也不同。,作宾语，表语和状语时，逻辑主语是句子的主语。,作宾补时，是句子的宾语。,作定语时，是所修饰的中心词。,不定式的语态：逻辑主语不定式语态的选择要根据它的逻辑主语，不,Henry cant attend the party _(hold)at Toms house at present because he is preparing the speech at the party _(hold)at Maries house tomorrow.,being held,to be held,Henry cant attend the party _,Where can an infinitive be used in a sentence?,It can be used as:,subject,object,Predicative,，,attributive,adverbial,object complement,.,Where can an infinitive be use,不定式的含义和用法,不定式的含义和用法,To see him,is not easy this time.,Climbing mountains,is very interesting.,1.,作主语,to do,doing,不定式做主语一般表示具体的,将来的,有意识的动作,.,动名词做主语表示抽象的,无意,识的,习惯性的倾向,.,辨 析,To see him is not easy this ti,形式主语,it,当做主语的不定式或主语从句太长时，我们常常用形式主语,it,而把真正的主语放在后面。,It is of great significance to read and write English often.,It is a pity that he should be so rude to a lady.,形式主语 it当做主语的不定式或主语从句太长时，我们常常用形,必背,动词,-ing,形式作主语的几个常用句型,It is no gooduse talking to him.,It is useless arguing about it.It is worth reading the book.,There is no saying when it will stop raining.There is no joking about such matters.,必背动词-ing形式作主语的几个常用句型 It is no,1).,有些动词只能用动词不定式做宾语,.,如,:hope,want,，,decide,agree,promise,manage,learn ask,expect,decide,pretend,refuse,，,would like,等。,疑问词加动词不定式也可作宾语,I dont know,what to do next,.,Do you have an idea on,where to hold the meeting,?,2.,作宾语,1).有些动词只能用动词不定式做宾语.疑问词加动词不定式,2).,有些动词只能用动名词做宾语,.,如,:,mind,enjoy,keep,avoid,resist,risk excuse,admit,appreciate,delay,dislike,mention,finish,fancy,escape,practise,suggest,advise,consider,miss,include,imagine,等,Eg.We should forbid _,（,sell,）,wine to children,selling,2).有些动词只能用动名词做宾语.Eg.We should,3).,有些动词既能用动词不定式又能用动名词做宾语,.,如,start,stop,go on,forget,remember,regret,mean,等,Dont forget to lock the door when you leave the house?,Oh,my god!I forgot taking my purse with me.,3).有些动词既能用动词不定式又能用动名词做宾语.如sta,4)need,want,require,deserve,demand,后,跟动名词的主动形式表示被动意义,The desk needs,to be repaired,repairing,wants/requires,4)need,want,require,deser,句型：,think/feel/consider/find/make,等,+it+n/adj+to do sth/object clause,Do you think it beneficial to do more exercise after supper?,Our teacher makes it a rule to speak English in class every day.,5,）形式宾语,it,的用法,句型：think/feel/consider/find,3.,作表语,What I want is,to learn from others.,His favorite sport is,playing basketball.,He is,disappointed.,动词不定式和动名词做表语的区别与做主语时一样。,3.作表语What I want is to learn,(2),做表语的不定式有时可以省略符号“,to”,这时在主语部分必须含有动词,do,而做表,语的不定式是解释,do,的含义,;,且这个,to,也可以不省略,.,All I did was,(to)give him a little,push,.,我只是稍稍推了他一下,.,What we want to do now is,(,to),lie down and rest.,(2)做表语的不定式有时可以省略符号“to”All I d,The library,_,next year will be good.,_,last year was good.,_ at present is good.,to be built,built,being built,4.,做定语,The library_next year,5.,作状语,动词不定式可以作目的，原因和结果状语,My father will come to see you.,目的状语,(=in order to/so as to),Glad to see you,原因状语,He hurried to the airport only to find that the plane had left,结果状语,5.作状语动词不定式可以作目的，原因和结果状语My fat,动词不定式在某些形容词后,(,如,good,sorry,pleased,等,),作原因状语,.(,也有人认为是宾语,),I feel glad,to hear the news,.,动词不定式在某些形容词后(如,分词作状语表示时间，原因，让步，结果，,方式和伴随情况。其逻辑主语须与句子主语,一致。主动用,doing,，被动用,done,Being busy,he couldnt go with us.,原因,The teacher entered the classroom,followed by two students.,方式,He went out,leaving,his homework half done.,结果,Given,more attention,the trees could have,grown better.,条件,分词作状语表示时间，原因，让步，结果，Being busy,6.,作补语,比较,to do,doing,和,done,He asked me to do the work with him.,I saw him going away.,I saw a boat tied to a big tree,.,They were very excited to see the baby tiger _ by the mother dog.,A,take good care of B,taking little care of C,taken good care of D,to take some care of,在,request,ask,tell,expect,force,invite,等后面作宾语时，常只使用,to,，避免重复,He didnt come,though we wanted him to.,6.作补语比较to do,doing 和done He,To,的省略,谓语动词为,see,watch,look at,observe,notice,hear,listen to,feel,等后接不定式作宾补时，不定式符号,to,省去，但句子变被动语态时，,to,不省略。,We saw her _(enter)the teachers office.,She was seen _(enter)the teachers office.,enter,to,enter