语法复习AdverbialClauses(状语从句).ppt

,Adverbial Clauses-语法要点,状语可用来修饰谓语动词、形容词、整个句子等等，状语主要由副词或与之相当的其他词类、短语或从句担任，下面主要讲述状语语从句，及状语从句中的注意事项。,1.Adverbial Clauses of Time:（时间.）,Different Kinds of Adverbial Clauses:,2.Adverbial Clauses of Reason(原因.）,3.Adverbial Clauses of Conditions(条件.）,4.Adverbial Clauses of Place(地点.）,5.Adverbial Clauses of Purpose(目的.）,6.Adverbial Clauses of Result（结果.）,7.Adverbial Clauses of Comparison（比较）,8.Adverbial Clauses of Concession(让步.）,9.Adverb Clauses of Manner(方式.),1.Adverbial Clauses of Time:（时间状语从句）when,while,as,before,after,since,until,as soon as,the moment,immediately,the minute,the second.every time,each time,by the time,1)When he comes here tomorrow,Ill call you.(at that time),I.when,2)Sorry，I was out when you called me.,1)While he was walking in the street,he met Tim.(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.(表示对比),II while,III.as(一边.一边,随着）1)As they were picking tea,the girls were singing happily.2)She sang as she worked.,区别-When,while,as,when 从句的重点不在动作本身发生的状态，而只是把它作为一个时间点 when 从句的动词大多是瞬时动词 When 引导的从句中动作，往往发生在主句动作之前或之后When:主句动作正在进行，从句中动作往往出乎意料,区别-When,while,as,while 从句的侧重点在于描述动作正在发生的状态 while 从句一般用的是正在进行时，而另一件事的状态没有硬性的要求，根据具体情况而定 while 表示的是一段时间，是一个过程,区别-When,while,as,While：如果含有“一段时间”的含义的时候，就可以用while。例如：Strike while the iron is hot.趁热打铁。（趁着铁是热的这段时间，赶紧打铁）Strike when the iron is hot.（铁只热了一下，打一下，然后铁就冷了）,区别-When,while,as,as 从句表示的也是一件事情正在发生，另一件事也正在进行当中 as 从句用的一般不用正在进行时，而只是一般过去时 The students took notes as they listened学生们边听课边做笔记。As we talked on,he got more and more excited.我们继续往下谈的时候,他越来越兴奋。The little girls sang as they went小姑娘们一边走，一边唱。,IV.BeforeIt wont be long before he finishes his writing.I knocked the door several times before you came to open it.V.AfterAfter 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 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 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）,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 was an applause the moment(as soon as)she appeared on the stage.,X.by the time1)By the time he arrived,the train had already gone.2)By the time he comes,we will already have left.,Exercises:1.They walked out of the room _the meeting was over.2.They must stay in school _they are sixteen.3.Take the medicine _you go to bed.,as soon as,by the time,before,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.,until,since,As,while,2.Adverbial Clauses of Reason(原因状语从句）because,since,as,now that,for,I.because1)The ship changed its 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 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（非直接原因）He must be ill,for he is absent today.,Exercises:1.The teacher must be strict with you _ they want 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.1.because 2.Since 3.for,3.Adverbial 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 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 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.Adverbial Clauses of Place(地点）You may find him where his parents live.,5.Adverbial Clauses of Purpose(目的）so that/in order 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.Adverbial Clauses of Result（结果状语从句）sothat,suchthat1)It is so good a story that Ill never forget it.It is such a good story that Ill never forget it.2)such+a/an+adj.+名词+that clause3)so+adj./adv.a/an+名词+that clause4)so+many/few+复数名词+that clause much/little+不可数名词,7.Adverbial 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 succeed.4)Gold is much heavier than any other metal.8.Adverbial 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 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 it.(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 praised 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.,