whenever是什么意思

定义：在句中作状语的从句是状语从句，修饰主句中的动词、形容词或副词等。状语从句由从属连词

引导，从属连词在句中不充当句子成分，只起连接作用，状语从句放在句首时，要用逗号，放在句尾时不

用。

二、分类根据意义上的不同，状语从句可分为：①时间状语从句②地点状语从句③原因状语从句④目的状

语从句⑤条件状语从句⑥结果状语从句⑦让步状语从句⑧方式状语从句⑨比较状语从句

三、时间状语从句

（一）引导时间状语从句的连词有：as,when（whenever）,before,after,assoonas,until（till）,since,every

time,once.

（二）、“as”as,when,while都有“当,,的时候”，可以互用

Whenshewasachild.

edinParis.

Asshewasachild.

as有“一边,一边”的意思

Hesangashewalked.

“when”

Whentheclockstrucktwelve,allthelightswentout.

Iwassleepingwhenshecamein.动补

Whenwearrivedatthestation,thetrainhadleft.

“while”主、从句动作或状态同时发生。用while引导的从句用延续性动词，常表示较长的时间或一个

过程。

Whilewewerehavingsupper,allthelightswentout.

Pleakeepquietwhileothersarestudying.

WhileIwaswritingletterslastnight,hewaswatchingTV.

when,while并列连问。when和while都可用作并列连问，连接并列分句。When表示“就在,,的时候”,

while意反而，可是，表示转折。

OneeveningBeethovenwaswalkinginastreet,whenhesuddenlystoppedoutsidealittlehou.并列连词引导并

列句，意思是就在那时。

（三）、主句是一般将来时，时间状语从句用一般现在时表将来，主句是过去将来时，从句用一般过去时表

示过去将来时，主句是一般过去时，从句用一般过去时。

1.I'llcallyouwhenIgetthere.

idtheywouldleavewhentheygotthenew.

ftassoonastheygotthenew.

Whenever无论什么时候，随时

ersomeonethrowsinsomerubbish,thetruckproducesapieceofmusic.每当有人扔进一些垃圾时，

它（汽车）就放一段音乐。

erwe'reintrouble,theywillhelpus.

hetheatre,wheneverIamfree.

demewheneveryouwantto.你随时来看我。

till和until（表示“直到,,”）句首多用until

1、在肯定句中表示“直到,,为止”，主句谓语动词要用延续性动词。

Iwaswaitinguntil/tillhearrived.

2、在否定句中表示“直到,,才”主句谓语动词常用终止性动词，这时until和till常被before替换Ididn't

leavetill/untilshecameback.

since:主句用完成时，从句用一般过去时，since引导的从句间或可用现在完成时。

ItistwoyearssinceIhavestudiedEnglish.

knowneachothersincewewerechildren.

beenfriends（eversince）sincewemetatschool.

,,（一段时间）+since+一般过去时态句子。

Itistwoyearssincemysistermarried.

,,（一段时间）have/haspasdsince+一般过去时态句子

Twosistershave/haspasdsincemysistermarried.

Since+时间点

eenathomesincethreeo'clockthisafternoon.

asbeeninChinasincetwoyearsago.

*everytime,eachtime,nexttime

Everytimeyougetbackatnight,youdropyourbootsonthefloor.

EverytimeIcatchcold,Ihavepaininmyback.

（everytime分写不可以合写）比较everyday（adj）日常的，普通的

everyday是名词短语，每天，天天

NexttimeIgothere,Iwillvisitthem.

*once一旦,就

Onceyoubegin,youmustgoon.你一开了头，就应该继续下去。

四、地点状语从句地点状语从句用where,wherever引导

Weshouldgowherethepeopleneedus.我们应该去人民需要我们的地方。

Wherethereisawill,thereisaway.有志者，事竟成。

Wherevertheywent,theyreceivedawormwelcome.无论他们走到哪儿都受到热烈欢迎。

Shefollowhimwhohegoes.他无论到哪里她总跟着。

五、原因状语从句原因状语从句用becau（因为），since（既然）,as（由于）引导

1、字母由多到少，语气由强到弱。

2、由why提问必须用becau回答。

Since,as不回答why的提问，而且从句一般放在句首，becau一般放在主句之后。

3、beforeof+名词

Becauoftherain,wedidn'tgotothepark.

4、becau和so不可连用，只能选其一。(另有although,but)

Whydidn'thecometoschool?Becauhewasill.

SinceImustdie,Imust.既然我一定要死，我一定这样做。

Sincealotofpeoplemakemistakesinlife,MrSmithwantedtogiveJohnaChance.

5、for并列连词，不能放在句首，主要放在两个并列句之间面

常有逗号隔开。

Thedaysweshort,foritisDecembernow.

*改错Becauheisillisthereasonwhyhecan'tcome.

六、目的状语从句

目的状语从句用so（常用于口语）,that,sothat,inorderthat引导

目的状语从句的谓语常含有may,might,can,could,should,would等情态动词

'llsitnevertothefrontsowecanhearbetter.

iedhardsothathemightsucceed.他努力学习，以便成功。

3.I'llspeakslowlysothatyoucantakenotes.我慢慢讲，以便你们能做笔记

rriedtothestationinorderthattheycouldcatchthetrain.他们急忙赶往火车站，以便能赶上火车。

taxisothatIcouldgetthereearlier.

6.I'mgoingtothelectureearlysothatImaygetagoodat.我打算早些去听讲座，以便找个好座位。

七、条件状语从句条件状语从句由if,unless,(so)aslongas(只需)引导

在条件状语从句中要用一般时表示将来时(与时间状语从句相同)

Wewillmissthetrainifyoudon'thurry.

Hesaidwewouldmissthetrainifwedidn'thurry.

Youwillfailtheexamunlessyoustudyhard.(ifyoudon'tstudyhard)

Hewon'tcomeunlessheisinvited.(ifheisn'tinvited)

Eatlessfoodunlessyouwanttobecomefatter.(ifyoudon'twanttobecomebetter)Aslongasyouarenotafraidof

difficulties,youaresuretosucceed.

Aslongasyoudon'tloheart,youwillsucceed.

八、结果状语从句

结果状语从句由such,that,so,.that,sothat,that引导

,that的常用句型

such+a/an+形容词+可数名词单数+that

such+形容词+可数名词单数+that

Such+形容词+可数名词复数（不可数名词）+that

For所提供的理由为一个补充说明，而且前

(Becau改为that)

注意somany(much,fw,little)+名词，suchalotof(或lotsof)+名词是惯用法，不可乱用。Sheissucha

beautifulgirlthatwealllikeher.

Theyweresuchbeautifulflowerthatweboughthome.

Itwassuchdeliciousfoodthattheyateitup.

+形容词或副词+thatso+形容词+a/an+可数名词单数+thatHeissorichthathecanbuylotofthingsfor

ssohardthathedideverythingwell.

uchagooddaythatweallwentswimming.

,that都可以引导结果状语从句Hedidn'tstudyhard,(so)thathefailedtheexam.

,to,enough,to可以引导结

果状语从句与so,that替换，so,that结构可以用too,to替换必

须具备两个条件，一是主句和结果状语从句的主语必须一致，二是从句中的谓语部分必须含有can(could)not.

Sheisyoungthatshecan'tgotoschool.

Sheistooyoungtogotoschool.

Sheisn'toldenoughtogotoschool.

九、让步状语从句although,thougheventhough=evenif,whether,orhowever=nomatterhowwhatever=no

matterwhatwhoever=nomatterwhowhenever=nomatterwhenwherever=nomatterwhere

*although和though都表示“虽然”只是although更正式，多用于句首，而though用于句中，二者都可

与yet,still连用，但不与but连用

Although/Thoughtheyarepoor,theyoftenhelpothers.

Theyarepoor,buttheyoftenhelpothers.

Althoughhehasfailedmanytimes,hedoesn'er/Nomatterwhatyousay,Iwon'tbelieve

you.

Nomatterwhatyousay,Idon'tcare.

Nomatterwhoyouare,rhardhetried,hefailedagain.

Nomatterwhattheweatherislike,youcanalwaysfindsurfersoutridingthewaves.

十、方式状语从句方式状语从句由as(如同，按照)，asif(though)引导*as和like都有“像”的意思，

as是连词，后面连接句子，like是介词后面可加名词、代词或名词性短语。

Ididtheworkasothersdid.相当于Ididlikeothers.

YoumustdoasIdo.

asif(though)两者意义相同，从句谓语动词常用虚拟语气，但实现可能性较大，则用连接词。Itemsas

if/thoughit'sgoingtorain.

Theyaretalkingasif/thoughtheywereoldfriends.

ShetreatsmeasifIwereherbrother.

Whenyouareinhome,doastheRomansdo.

例Youmustdo____Itoldyou.

(D)

Thestudentsmustdo_____theteachertoldthem.

(A)

十一、比较状语从句

比较状语从句由as,as,notas(so),as,than,the+比较级，the+比较级引导

Heswimsaswellasyou.(do)

Hedoesn'tswimaswellasyou(do).

Hegothereearlierthanyou.(did)

Thebusierheis,thehappierhefeels.