Unit3BuyingandSelling课件

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1、Unit 3 Buying and SellingGrammar:Adverbial Clauses 榆中九中榆中九中_李锦江李锦江1.Adverb Clauses of Time:（时间状语从句）时间状语从句）when,while,as,before,after,since,until,as soon as,every time,each time,the moment,by the timeI.when1)When he comes here tomorrow,I will call you.(at the time that)2)Henry is in charge of the off

2、ice when Mr.Smith is away.(during the time that)II.while 1)While he was walking in the street,he met Tim.(分词短语）分词短语）While walking in the street,he met Tim.Walking in the street,he met Tom.2)He learned to speak English while he was here.3)I like tea while she likes coffee.III.as (一边.一边,随着）1)As they w

3、ere picking tea,the girls were singing happily.2)She sang as she worked.IV.Before1)It wont be long before he finishes his writing.V.After1)After he(had)finished his work,he left there.He(had)finished his work before he left here.After finishing his work,he left here.Having finished his work,he left

4、here.VI.since (from the time that)1)I have known him ever since he was a boy.2)I have worked here since I graduated from the university.*3)It is(has been)two years since he came here.VII.until(till)(up to the time that)1)He will not go to bed until(till)his mother comes.2)Until she told me,I had no

5、idea of what they had said.3)It is not until his mother comes home that he will go to bed.(强调结构）强调结构）VIII.as soon as1)As soon as she got home,she began to cook.On getting home,she began to cook.*IX.every time,each time,the moment 1)Every time/each time I catch a cold,I have pain in my back.2)There w

6、as an applause the moment(as soon as)she appeared on the stage.X.by the time 1)By the time he arrived,the train had already gone.2)By the time he comes,we will already have left.Exercises:用适当的连词填空1.They walked out of the room _the meeting was over.2.They must stay in school _they are sixteen.3.Take

7、the medicine _you go to bed.4.I knew nothing about it _he told me.5.It is more than five years _we started to learn English.6._he talked on,he got more and more excited.7.We should strike _the iron is hot.2.Adverb Clauses of Reason（原因状语从句）because,since,as,now that,for I.because1)The ship changed its

8、 course because there was a storm.The ship changed its course because of the storm.2)Because he was ill,he didnt go to school.He was ill,so he didnt go to school.Being ill,he didnt go to school.II.since 1)Since you are ill,youd better go to see the doctor.2)Since you do not understand,I will explain

9、 again.III.as 1)As she was late for class,she had to say sorry.2)As Jane was the oldest in this family,she had to look after the others.IV.now that 1)Now that class is over,lets go to play football.V.for He must be ill,for he is absent today.Exercises:1.The teacher must be strict with you _ they wan

10、t you to make great progress.2._your father is well again,you no longer have anything to worry about.3.The day breaks,_the birds are singing.3.Adverb Clauses of Condition(条件状语从句）I.if1)If he had worked harder,he would have passed the exam.2)If you work harder,you will succeed.Work harder,and you will

11、 succeed.Work harder,or you wont succeed.Working harder,you will succeed.II.unless1)We cant write to Mary unless she tells us her address.We cant write to Mary if she doesnt tell us her address.*III.as long as(只要)1)I will never give up learning as long as I live.2)You may borrow the book as long as

12、you keep it clean.*IV.on condition that（条件是）Well let you use the room on condition that you keep it tidy.*V.in case(万一）Youd better take your raincoat with you in case it rains.4.Adverb Clauses of Place(地点状语从句）You may find him where his parents live.5.Adverb Clauses of Purpose(目的状语从句）so that/in order

13、 that They set out early so that(in order that)they might arrive there in time.They set out early in order to(so as to)arrive there in time.6.Adverb Clauses of Result（结果状语从句）sothat,suchthat1)eg.It is so good a story that Ill never forget it.It is such a good story that Ill never forget it.2)such+adj

14、.+可数名词 复数 +that clause 不可数名词3)so+adj./adv.+that clause4)so+many/few+复数名词 +that clause much/little+不可数名词7.Adverb Clauses of Comparison（比较）asas,not as(so)as,more/-erthan,lessthan1)He doesnt work so hard as you do.2)There is as much ink in bottle A as in bottle B.3)The more you worry,the less youll suc

15、ceed.4)Gold is much heavier than any other metal.8.Adverb Clauses of Concession(让步）1)Although(Though)he is old,he works hard.He is old,but he works hard.*2)Even though(even if)you say so,I dont believe it.(即使)*3.Difficult as the work is,well finish it on time.Though the work is difficult,well finish

16、 it on time.4.Whenever(No matter when)you come to our country,you will be warmly welcomed.5.Wherever(No matter where)he goes,he always brings two bodyguards with him.9.Adverb Clauses of Manner(方式状语从句 )1)You must try to do as I did.*2)Lets do as Mrs.Li teaches us.*3)He talks as if he knew all about i

17、t.(好象 )Exercises:Fill in the blank with a conjunction.(where,unless,if,as,suchthat,even though,as if,now that)1.A driver should slow down _the roads are narrow.2._you mail the letter today,it wont arrive there.3._he has time,he will come and see us later.4.Tom made _great progress _his headmaster pr

18、aised him at the school meeting.5._his father knew what he had done,the boy was going to be in trouble.6.We will stay a little longer _it is very late.7.She pretended to laugh loudly _the story were very funny.8.Poor _his English was,yet Mr.Li made himself understood in England.9.You should do _your parents ask you to do.