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1、Grammar1infinitive第一页，共14页。He is likely to enter Beijing University.He is likely to be admitted into Beijing University.He is likely to have got grades high enough for Beijing University in the entrance exams.He is likely to have been admitted into Beijing University.He seems to be expecting the adm
2、itting letter from Beijing University.He seems to have been expecting the admitting letter from Beijing University in the past week.一般一般(ybn)主动式主动式 一般一般(ybn)被动式被动式 完成完成(wn chng)主动主动式式 完成被动式完成被动式进行时进行时 完成进行式完成进行式 第二页，共14页。Observation 1.Im glad to meet you.2.She invited me to attend the meeting.3.The
3、boy is old enough to go to school.不定式一般不定式一般(ybn)式式to do 所表示的动作通常与谓语所表示所表示的动作通常与谓语所表示的动作或状态同时发生，或在它之后发生。的动作或状态同时发生，或在它之后发生。第三页，共14页。1.There was nothing to be done.2.Id like to be told whats going on.to be done 表示表示(biosh)被动。被动。第四页，共14页。1.To be cycling in a sandstorm is frightening.2.They pretended t
4、o be working hard when their boss passed them.to be+doing；不定式进行式表示动作不定式进行式表示动作(dngzu)正在进行，正在进行，与谓语动词表示的动作与谓语动词表示的动作(dngzu)同时发生。同时发生。第五页，共14页。1.Im the only person in my family to have been in a sandstorm.2.He is not likely to have got my letter.to have done 表示动作发生表示动作发生(fshng)在句子谓语动词所表示的在句子谓语动词所表示的动作
5、之前动作之前第六页，共14页。1.To have been caught in a sandstorm is a terrible experience.2.The room was said to have been cleaned.to+have been+过去分词；过去分词；不定式完成式所表示的被动动作在谓语动词不定式完成式所表示的被动动作在谓语动词(dngc)所表示的动作之前发生。所表示的动作之前发生。第七页，共14页。Checking your answers:1.It is dangerous to be traveling during a sandstorm.2.Experts
6、 hope to learn more about the movement of thunderstorms.3.We were told not to leave the house.4.The work on the house needs to be completed by the end of the week.5.Most houses seem to have been destroyed by the storm.2.Rewrite the sentences using infinitive structures P34第八页，共14页。Checking your answ
7、ers:1.It is frightening to be walking in the road in a sandstorm.I hope I reach home soon.2.Experts hope to learn more about the movement of sandstorms.3.Id like to be told about the situation before now.4.The work needs to be completed by the end of the week.5.My father was out of the city when the
8、 sandstorm came.He was very glad to have missed it.6.The building has to be finished by the end of the year.7.To see a real sandstorm was very frightening.3.Put the verbs in brackets into the correct infinitive forms.P34第九页，共14页。1.There are still a lot to have be done about traffic.2.We should to re
9、cycle rubbish,not burn it.3.We need develop better public transport in cities.4.The wind is strong enough blow the sand across the Pacific Ocean.5.Some counties are trying save the forests.tototoMore practice第十页，共14页。Grammar2but+infinitive第十一页，共14页。Finish the following exercises1.I was watching an i
10、nteresting TV program about how to make dinners last night when electricity was out,and I couldnt _ to bed.A.but goingB.help but to go C.help going D.choose but go2._ in a heavy rain,Robert fell ill and couldnt but _for a leave.A.Caught,to askB.Catching,ask C.Catching,to askD.Caught,askcannot but+V.
11、（动词（动词(dngc)原形）原形）;cannot help/choose but+V.（动词动词(dngc)原形）原形）第十二页，共14页。1.He did nothing but _(talk).2.The man could do nothing but _(wait).3.We have no choice but _(wait).4.They want nothing but _(succeed).5.How did you spend your weekend,Joe?I didnt find anything interesting for me _ some washing i
12、nstead of my mother.A.but didB.but do C.but doingD.but to dotalkwaitto waitto succeed如果如果(rgu)主动词是主动词是do的任一形式的话，的任一形式的话，but 后面就省略后面就省略to（有（有DO无无TO，无，无DO有有TO）第十三页，共14页。Homework Exchange your idea about the grammar with your classmates.Finish the exercises on Page 36.Finish exercises on page 85.第十四页，共14页。