非谓语动词和从句的转换省公共课一等奖全国赛课获奖课件.pptx
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1、非非谓谓语语动动词词与与从从句句间间转转换换非非谓谓语语动动词词与与从从句句间间转转换换第1页 在英语中,动词按其在句子中作用,可分为:在英语中,动词按其在句子中作用,可分为:谓语动词和非谓语动词。谓语动词和非谓语动词。谓语动词谓语动词就是能够单独直接在句子中做谓语动词。就是能够单独直接在句子中做谓语动词。非谓语动词非谓语动词就是不能单独在句子中做谓语动词。就是不能单独在句子中做谓语动词。一、什么叫做非谓语动词一、什么叫做非谓语动词第2页二、非谓语动词表现二、非谓语动词表现形式形式有:有:不定式不定式 (to do)现在分词现在分词(doing)过去分词过去分词(done)动名词动名词 (do
2、ing)第3页三、三、非谓语使用条件非谓语使用条件一个句子当中,一个句子当中,已经存在一个主句已经存在一个主句(谓语动词)(谓语动词),又没有连词又没有连词情况下情况下She got off the bus,but left her handbag on her seat.She got off the bus,leaving her handbag on her seat.第4页主主语语表表语语宾宾语语补补语语定定语语状状语语不定式不定式现在分词现在分词过去分词过去分词动名词动名词组成组成介词介词短语短语四、非谓语动词充当成份四、非谓语动词充当成份+第5页分词作分词作状语状语(分词做状语能够
3、转换成其相对应状语从句分词做状语能够转换成其相对应状语从句来表时间、条件、原因来表时间、条件、原因)Given more attention,the trees could have grown better.If the trees had been given more attention,the trees couldNot knowing his telephone number,she had some difficulty getting in touch with Bill.As she didnt know his telephone number,she had some 第
4、6页While waiting at the dentists,I read the whole of a short story.(=While I was waiting )Before being in the army,he was an engineer.(=Before he was in the army,)_(finish)my work,I went to bed.(=After I had finished my work,)Working hard,you will succeed.(=If you work hard,)Having finished第7页Being s
5、o poor in those days,we couldnt afford to send the boy to hospital.(=As we were so poor)Weighing almost one hundred jin,the stone was moved by him.(=Though the stone weighed almost one hundred jin,)第8页1.时间状语:可改为时间状语从句,也可在分词前加上时间状语:可改为时间状语从句,也可在分词前加上连词连词“when,while,until”等,使其时间意义更明等,使其时间意义更明确。确。(多置于句
6、首,也可置于句末多置于句首,也可置于句末)2.原因状语:可改为原因状语从句或并列结构。原因状语:可改为原因状语从句或并列结构。(多置于多置于句首或句末,也可置于句中句首或句末,也可置于句中)3.条件状语:可加连词条件状语:可加连词if,unless 等;也可换成条件状等;也可换成条件状语从句。语从句。(多置于句首多置于句首)4.让步状语:有时可加让步状语:有时可加 although,though,even if,even though,whetheror 等连词,可转等连词,可转换成让步状语从句。换成让步状语从句。(多置于句首多置于句首)5.结果状语:可改为结果状语从句。(结果状语:可改为结果
7、状语从句。(多置于句末多置于句末)6.方式、伴随状语:可改成并列结构或从句。方式、伴随状语:可改成并列结构或从句。(多置于句多置于句末末)A.现在分词与过去分词作状语现在分词与过去分词作状语第9页When they heard the news,they all jumped with joy.HearingWhen the baby saw its mother,it smiled.Seeing As they hoped to get our support,they sent us their statement.Hoping The snow lasted a week,so it r
8、esulted in a serious traffic confusion in the whole area.resultingWhen hearingWhile he worked in the factory,he was an advanced worker.WorkingWhile workingWhen seeing 第10页When it is seen from the hill,the park looks very beautiful.Dont speak until you are spoken to.Because he was greatly touched by
9、his teachers words,the boy did a lot of things to help his classmates.If we were given more time,we could do it much better.He was warned of the danger,but he still went skating on the ice.SeenGreatly touchedGiven spokenWarned he If given When seen第11页不过不过,有些分词作状语是独立结构有些分词作状语是独立结构,不与句子主语不与句子主语产生联络产生
10、联络;常见有常见有:judging from,generally speaking,compared to/with,considering,providing(ed),supposing etc.Generallyspeaking,womenlivelongerthanmen.Judgingfromwhatyousay,heoughttosucceed.Consideringthedistance,hearrivedveryquickly.Takingeverythingintoconsideration,youshouldleave.普通说来,女人比男人活得长。普通说来,女人比男人活得长。
11、从你话看,他应该能成功。从你话看,他应该能成功。考虑旅程,他抵达得很快。考虑旅程,他抵达得很快。考虑到各种原因,你最好离开。考虑到各种原因,你最好离开。第12页B.不定式作状语不定式作状语不定式作状语常用来表目、结果或原因、程度、条件等。She looked into the window,and wanted to see what was going on inside.She looked into the window to see what was going on inside.第13页注:表目标不定式还常与注:表目标不定式还常与so as或或in order连用,连用,组成组成s
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