初中状语从句讲解及习题附答案.pdf
《初中状语从句讲解及习题附答案.pdf》由会员分享,可在线阅读,更多相关《初中状语从句讲解及习题附答案.pdf(20页珍藏版)》请在淘文阁 - 分享文档赚钱的网站上搜索。
1、.(一)状语从句概述定义位置状语从句用作状语,是起副词作用的句子。状语从句可以放在主句之前,也可以放在主句之后,时间、条件、原因和让步状语从句放在句首时需要用逗号和主句隔开。分类根据其作用可以分为时间、地点、原因、条件、目的、让步、方式和比较等状语从句。作用(二)状语从句详解(二)状语从句详解1.时间状语从句时间状语从句引导词when用法意为“当的时候”。When引导从句的谓语动词可以是延续性动词,也可以是瞬间动词。并且 when 有时表示“就在那时”示例A liar is not believed when hespeaks the truth.说谎者讲真话时也没有人相信。When he a
2、rrives,Ill call you.它可以修饰谓语、非谓语动词、定语、状语和整个句子。When you laugh and smile,yourbody relaxes.while意为“在的时候,在的同时”。While 引导从句的谓语动词必须是延续性的,发生时间较长,并强调主句和WhileIwasstandingatthewindow,Isawseveralboysrunning along the street.While John was watching TV,his-优选.从句的动作同时发生(或者相对应)。While 有时还可以表示对比。as意为“一边一边”。As引导的动作是延续性
3、的,发生时间较短,一般用于主句和从句动作同时发生;as 也可以强调一前一后。after意为“在之后”。表示主句动作发生在从句动作之后。主句与从句的动作时间关系与 before引导的从句相反。before意为“在之前”。引导的从句不用否定形式的谓语,并且当 before引导的从句位于主句之后,有时译成“就,才”。当主句用将来时,从句 总 是 用 现 在 时;如 果before 引导的从句谓语用的是过去时,则主句动词多用过去完成时,这样以便体现wife was cooking.The writer was angry as he wastravelling on a train to London
4、because someone had invaded his“space”.He smiled as he stood up.Withmanyhungryvisitorswaiting,dont stay too long atyour table after you have finished.If an early exit is necessary,youcan leave after a scene is over.You cant watch TV before youfinish your homework.Before it ended,the theatre wasalmos
5、t empty.My father had left for Canada justbefore the letter arrived.-优选.动作的先后。till意为“直到”。一般情况下可以和 until 互换。如果主句中的谓语动词是瞬时动词时,必须用否定形式;如果主句中的谓语动词是延续性动词时,用肯定和否定形式都可以,但表达的意思不同。until意为“直到”。在强调句型中多用 until。如果主句中的谓语动词是瞬时动词时,必须用否定形式;如果主句中的谓语动词是延续性动词时,用肯定和否定形式都可以,但表达的意思不同。since意为“自从,从 以来”。引导从句的谓语动词可以是延续性的动词,也可
6、以是瞬时动词。一般情况下,从句谓语动词用一般过去时,而主句的谓语动词用现在I have been studying hard since Ientered the high school.It is four years since my sisterlived in Beijing.It is five years months since ourboss was not in Beijing.Im waiting for my sister.Iwont go to see my uncle untilshe es.Wait until I finish what I am doing.Sh
7、e didnt even know that it wasanearthquaketillshesawashaking(moving from side toside)light.The fireman worked very hard tillthe fire was out.-优选.完成时。但在It is+时间+since 从句的句型中,主句多用一般现在时。as soon as意为“一就”。引导时间状语从句时,如果主句用了将来时,从句一般使用现在时。2.2.地点状语从句地点状语从句引导词where用法意为“哪里”。“where 引导的地点状语从句,(there+)主句”“哪里哪里就”。主句
8、在从句后面时,there 可用可不用;主句在从句的前面时,一般都不用 there.示例Where there is a will,there is away.They were good persons.Wheretheywent,theretheywerewarmly weled.You should have put the bookwhere you found it.wherever意 为“无 论 何 地”。anywhere/wherever 引导地点状语从句+主句。anywhere 本身是个副词,但是常可以引导从句,相当于连词,意思Wherever the sea is,you wi
9、llfind seaman.Ill go anywhere you go.Tom will call me as soon as hegets home.I will call you as soon as I arrive.-优选.相当于 wherever,anywhere 引导的从句可位于主句之前,也可以位于主句之后。而wherever 本身就是个连词,表示“在何处,无论何处”。3.3.条件状语从句条件状语从句引导词if用法连词,意为“假如,如果”。当主句是将来时的时候,从句要用一般现在时。示例Dont talk loudly at the meeting.If you do,you wi
10、ll have to leave.Well go for a piic if it doesn train this weekend.unless连词,意为“除非(=if not)。当主句是将来时的时候,从句要用一般现在时。Dont discuss the problems withyour partner unless you are askedto do so.I wont go there unless you ewith me.4.4.原因状语从句原因状语从句引导词as用法意为“因为”。引导原因状语从句时表示附带。说明示例As the weather is cold,I stay at
11、home.-优选.“双方已知的原因”,语气比 since 弱,较为正式,位置较为灵活(常放于主句之前)。since意为“因为”。引导的原因状语从句一般放于主句之前表示已知的、显然的理由(通常被翻译成“既然”),较为正式,语气比 because弱。As it is raining,youd better takea taxi.As you are tired,youd betterrest.Since the earth looks like a ball,the sun can shine on only half of itat a time.Since the race is in Apr
12、il,I had torun throughout the winter,and inBoston,winters are cold.Since everybody is here.Letsbegin our meeting.because意为“因为”。引导的原因状语从句一般放于主句之后,表述直接原因,语气较强,最适合 why 引导的疑问句。Because 引导的原因状语从句有时可以与 becauseof 短语互换。Thewomanpreferswinterbecause she can skate.Idliketocollectstampsbecause they are interesti
13、ng.Imverytiredthesedaysbecause of studying physics.He cant e because he is ill.=Hecant e because of his illness.for意为“因为”。引导的原因状语从句并不说明主句行He must be ill,for he is absenttoday.-优选.为发生的直接原因,只提供一些辅助性的补充说明,for引导的原因状语从句只能放于主句之后,并且必须用逗号将其与主句隔开。5.5.目的状语从句目的状语从句引导词so that用法意为“以至,以便”。目的状语的谓语常含有 may,might,can
14、,could,should,would 等情态动词。He could not have seenme,for Iwas not there.示例Try to speak loud enough so thatpeople can hear you clearly.Mr.Green speaks very loudly sothat all the people can hear himclearly.in orderthat意为“为了”,相当于 so that.in order to 后面可以跟动词原形构成目的状语,不是目的状语从句。We shall let you know the deta
15、ilssoon in order that you can/maymake a arrangements.6.6.结果状语从句结果状语从句引导词sothat用法意为“如此以至于”。so+adj./adv.原级+that,so 是示例This year it has rained so heavilyinSouthChinathatlotsof-优选.副词,只能修饰形容词和副词。so 还可与表示数量的形容 词many,few,much,problems are caused.The ice on the lake was so thinthat people couldnt skate onit
16、.Too often,we spend so muchtime thinking about the futurethat we fail to enjoy the present.There are so few notebooks thatI cant give you any.little(这四个形容词表示多或少时)连用,形成固定搭配。so+many 或 few+复数可数名词+that;so+much 或 little+不可数名词+that.such.that意为“如此以至于”。有三种结构:Its such a wonderful song thatwe all like it.Simo
17、n is such dishonest personthat no one believes him.The boy is so young that hecant go to school.=He issuch a young boy that hecant go to school.such+a(an)+adj.+单数不可数名词+that;such(+adj.)+不可数名词+that;such(+adj.)+复数可数名词+that,such 是形容词,修饰名词或名词词组。有时可与sothat句型转换。7.7.让步状语从句让步状语从句引导词though用法意为“虽然”。不能和 but 连用。
18、但是可以同 yet(still)连用,示例So it has lived up to now thoughit isnt strong at all.-优选.构成 thoughyet(still).though较普遍,常用于非正式的口语和书面语中。even 能和though 组合表示强调,在这里eventhough=evenif(nomatterif;though即 使 也)。though 可以独立用作副词,常放在句末,意为all thesame(还 是;仍 然)或however(可是;然而)。although意为“虽然”。不能和 but 连用。但是可以同 yet(still)连用,构成alt
19、houghyet(still).Though they are twin brothers,they dont look like each other.Even if/Even though we couldafford it,we would afford it,wewouldnt go abroad for ourvacation.Although he died several yearsago,I can still remember thedays we spent together and whathe has taught me about love.Although we h
20、ad little food withus,we decided to spend thenight in the car.although 较为正式,语气比though 重,常用以强调让步概念。even 不能和 although组合。8.8.比较状语从句比较状语从句引导词asas.用法意为“和一样”。表示同级的比较。使用时要注意第一示例She is very good at painting.Shecan paint as well as here teacher.-优选.个 as 为副词,第二个 as 为连 词。其 基 本 结 构 为:as+adj./adv.原级+as。若有修饰成分,如
21、twice,three times,half,a quarter 等,则须置于第一个 as 之前。not as/soas意为“和不一样,不如”。也表示同级比较。I ran out as quickly as possible.She is not so(as)outgoing asher sister.This dictionary is not as/so usefulas you think.9.9.方式状语从句方式状语从句引导词as/(just)as.so用法意为“犹如,就像”。引导的方式状语从句通常位于主句后,但在(just)as.so结构中位于句首,这时 as从句带有比喻的含义,意为
22、“正如,就像”,多用于正式文体。as if/as though意为“就像,好像”。两者的意义和用法相同,引出If would never forget heresmile,or the way her eyes示例When in Rome,do as theRomans do.As water is to fish,so air is toman.-优选.的状语从句谓语多用虚拟语气,表示与事实相反,有时也用陈述语气,表示所说情况是事实或实现的可能性较大。常译作“仿佛似的,好像似的”。练习一一.单项填空shone as if we were the sameage.It looks as if
23、the weather maypick up very soon.1._ hes old,he can still carry this heavy bag.A.ThoughB.SinceC.ForD.So2.-Do you know if he _ to play basketball with us-I think he will e if he _ free tomorrow.A.es;isB.es;will beC.will e;isD.will e;will be3.In the zoo if a child _ into the water and cant swim,the do
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 初中 状语 从句 讲解 习题 答案
限制150内