一轮复习之状语从句.ppt

一轮复习 之状语从句,高考考点,最常考得内容 时间状语从句 以“when / while / until / before 最多 条件状从 if 的虚拟及真实条件 unless / once in case 让步状语,状语从句时态 状语从句的省略 （两个条件） 一个关联词可以引导不同状语从句，意义不同 when / while / as / since / so 关联词的选用 （注意与定语从句的区别）,如何辨别状从&定从&并列句,引导词分别称作“ 从属连词 & 关系代词/副词& 并列连词 以when 为例 When the film ended ,the people went back. I still remember the day when I first came to Beijing. We were about to go out when the telephone rang.,As /when/While I was walking down the street I noticed a police car in front of the building. 1)as -但它着重强调主句与从句的动作或事情同时 或几乎同时发生。 The runners started as the gun went off. She sang as she worked. As spring warms the earth, all trees turn green. as 表随着 as the time goes on as 引导原因/ 让步状从 及定语从句,2)when (at or during the time that )既可以 表示在某一点的时候，又可表示在某一段 时间内,主句与从句的动作或事情可以同时 发生也可以先后发生。 It was raining when we arrived.(指时间点),做并列连词 ，有四种句型 I was about to go out when it began to rain when it comes to 表原因= since/ considering that Why did you ask the teacher when you had known the answer?,while意思是“当的时候”或“在某一段时间里”。从句中的动词一般要用延续性动词。 Strike while the iron is hot. 这里的while意思是“趁”),并列连词， 强调对比 Some people like coffee, while others like tea. 引导让步状语， 尽管,而，却,1._the days went on, the weather got worse. A.With B.When C.While D.As 2.Why do you want a new a job_ you have got such a good one already. A.when B.which C.that D.where 3.We were playing in the garden _ it began to rain. A. after B. when C. while D.as 4._ I accept that he is not perfect. I do actually like the person. A. Before B. Since C. While D.Unless,D,A,B,C,5. Where s that report? - I brought it to you _you were in Mr. Blacks office yesterday. A. if B. when C. because D. before 6. I d like to study law at university_ my cousin prefers geography . A. though B. as C. while D. for 7. _ , his idea was accepted by all the people at the meeting. A. Strange as might it sound B. As it might sound strange C. As strange it might sound D. Strange as it might sound,B,C,D,He wont go to bed till/until she returns.,He didnt get up until his mother came in.,Not until his mother came in did he get up.,It was not until his mother came in that he got up.,二.until/till;not until/till,not until 直到才表达唯一的结果 You cant use my bike until you promise to return it before 9 oclock.,-How long do you suppose it is _ he arrived here? -No more than half a week. A. when B. before C. after D. since,三.since 自从,-How long have you done these written exercises? -_ A.Until 12 oclock B.Since supper time C.Before it struck 12 D.So long as I stayed 比较since 表原因,B,D,before,It will +be 一段时间+ before 过多久才能 It was +时间+before过了多久就 It will be five years before he returns from England. It was a long time before I got to sleep before 从句不用否定形式,用since/ before/ when/ that 填空,It was 3 years ago _ he left. It was 3 oclock _ he left. It was 3 years _ he left. Its / has been 3 years _ he left.,that,when,before,since,是三年前他离开的,他离开时三点了,过了三年他才离开,他离开至今已经3年了,让步状语从句 （1）although与though可以引导让步 状语从句，不能与but连用，但可以与yet连用。 Although they are poor,(yet)they are warm-hearted.,2)as引导让步状语从句，用倒装 Tired as they were, Lucy and Lily stayed up late.,3）though可作副词，也可倒装,It was quite true , though.,注意even if & even though的区别 whether or / while 都可引导让步，通常位于句首 （whether to do ) no matter 后一定要加特殊疑问词,_many times ,but he didn t get a good result yet. A.He tried B.Though he tried C.Having tried D.Trying,A,下列情况下只能使用because: 在回答why的问句时； 在用于强调句型时； 被not所否定时。 (2)for它只能置于主句之后，for是并列连词。对前面主句的内容加以解释或推断时， Its morning now, for the birds are singing.,原因状语,原因状语,-What made him so upset? -_ his bike. A.Losing B.Because he lost C.Because of losing D.Lost,A,目的状语从句：that, so that, in order that 注意：目的状语从句的谓语动词常与情态动词连用，否则可能是结果状语从句。不可置于句首。 1)They started early so that they might arrived in time In order to arrive in time, they started early. 2)He spoke loudly so that everyone can hear him. 注意 so that & in order to 的区别,结果状语从句：that, so that, so that, such that （so / such 位于句首） 1)so + 形容词/副词 + that从句； 2)such + 名词 + that从句。 3) so many /much /little/few +n +that 注意 such that & such as 的区别 It was such a big job that we had to ask others for help. We have found such materials as are used in their factory. （像一样的）,条件状语记熟连词，注意只有if 有虚拟 方式状语 注意as if / as though 好像+虚拟 as if 的省略 如 as if to do 好像要去做 as if doing 好像正在做 地点状语 注意where 和引导定从的区别,注意状语从句中从句的省略现象 （1）连接词 + 过去分词 Dont come in until asked to. Pressure can be increased when needed. Unless repaired, the washing machine is no use. （2）连词 + 现在分词 Look out while crossing the street. （3）连词 + 形容词/其他 常见的有if necessary、if possible、when / whenever necessary、if any, if so等。,1.Once lost , _. A.it is hard to get such a chance again. B.to get such a chance will be difficult C.one can never get such a chance a