状语从句的省略课件-高考英语二轮复习.pptx

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1、1.While walking the dog,you were careless and it got loose and was hit by a car.While you were walking the dog,you were careless and it got loose and was hit by a car.2.While crossing the road,you should be careful.While you are crossing the road,you should be careful.在时间、条件和让步等状语从句中在时间、条件和让步等状语从句中,

2、如果从句主语和主句的主语一致如果从句主语和主句的主语一致,且从且从句的谓语含有句的谓语含有be动词的某种形式动词的某种形式,从句从句的主语和的主语和be动词可以省略动词可以省略,并且要同时并且要同时省略。省略。状语从句的省略状语从句的省略While visiting the butterfly exhibition in the museum，I came across one of my former fellows.Although astonished at the outcome of the election，Mr Zhang didntsay anything before his

3、 fellows.(4)省略后的句型：连词连词+现在分词现在分词/过去分词过去分词/介词短语介词短语/形容词形容词If involved in this case,you will be punished.If necessary,you can choose me to make the presentation.状语从句省略句的结构：状语从句省略句的结构：连词连词+分词（分词（-ing-ing、-ed)/-ed)/形容词形容词特点：特点：1.1.从句主语与主句主语相同从句主语与主句主语相同2.2.从句中谓语动词含有从句中谓语动词含有bebe动词动词以下为约定俗成的省略形式：if so如果是

4、这样的话if not如果不是这样，否则if ever如果曾经有的话if any如果有的话if necessary如果有必要的话if possible如果可能的话when necessary 在必要的时候一般说来省略现象多出现在下列五种状语从句中：1.由when,while,as,before,after,till,until,once等引导的时间状语从句；2.由whether,if,unless 等引导的条件状语从句；3.由 though,although,even if,whatever等引导的让步状语从句；4.由 as,than 等引导的比较状语从句；5.由as,as if,as thou

5、gh 等引导的方式状语从句.熟读深思熟读深思 阅读下列句子阅读下列句子,指出划线句中省指出划线句中省略的单词略的单词1.The country singers were playing the guitar while singing.(while 后省略了后省略了_)they were 2.When asked to answer questions,you should stand up.(When 后省略了后省略了_)3.He will help us do it,if necessary.(if 后省略了后省略了 _)you are it is 当从句的主语是当从句的主语是 it,谓语

6、动词中又含有系动词谓语动词中又含有系动词be 时时,可以把可以把it和系动词和系动词be一起省略一起省略.if necessary/possible/if true/so/not灵活运用灵活运用 When 1_(travel)in Shanghai,I happened to meet my friend.We chatted for a little while.Even though 2 _(invite),I didnt have a drink with him because I was in such a hurry.invitedtraveling单句语法填空Though_(cr

7、iticise)by the head teacher,Sandy was still grateful to Mr White.Though_(annoy)at Toms words,she forced a smile.There are some health problems that,when not _(treat)in time,can become bigger ones later on.criticisedannoyedtreated 天津二考Harriet Stowe，mother of six，wrote parts of Uncle Toms Cabin while

8、_(cook).202l全国乙卷I was considering this while _(work)as a nurse just a few weeks ago.cookingworking完成句子_(如果可能的话)，I will learn to carve._(在必要的时候)，I will step out of my comfort zone._(如果有必要的话)，we will grow some waterlily in the pond，which is located at the backof our house.If possibleIf necessaryWhen necessary