狀語從句重難點講解經(jīng)驗案例：一、狀語修飾動詞、形容詞、副詞或整個句子。通常由副詞、介詞短語、動詞不定式、分詞和從句等擔(dān)當(dāng)。例如：

1.Naturally,ourgrandparentswerepleasedtogetourphonecall.(副詞)

2.Weworkedhard,fromsunrisetosunset.(介詞狀短語)

3.Tohelpmydisabledaunt,Ispendanhourworkinginherhouseeveryday.(不定式)

4.Seenfromadistance,thefarmhouselookeddeserted.(過去分詞)

5.IknowhowtolightacampfirebecauseIhaddoneitbefore.（原因狀語從句）

狀語的位置比較靈活，可以位于句首、句末或句中。enough用作狀語修飾形容詞和副詞時必須后置。

二、狀語從句主要用來修飾主句或主句的謂語。一般可分為九大類，分別表示時間、地點、原因、目的、結(jié)果、條件、讓步、比較和方式。盡管種類較多，但由于狀語從句與漢語結(jié)構(gòu)和用法相似，所以理解和掌握它并不難。狀語從句的關(guān)鍵是要掌握引導(dǎo)不同狀語從句的常用連接詞

和特殊的連接詞即考點。現(xiàn)分別列舉如下:

1．時間狀語從句

常用引導(dǎo)詞：when,as,while,assoonas,while,before,after,since,till,until

特殊引導(dǎo)詞：theminute,themoment,thesecond,everytime,theday，theinstant,immediately,directly,nosooner…than,hardly…when,scarcely…when

Ididn’trealizehowspecialmymotherwasuntilIbecameanadult.

WhileJohnwaswatchingTV,hiswifewascooking.

Thechildrenranawayfromtheorchard(果園)themomenttheysawtheguard.

NosoonerhadIarrivedhomethanitbegantorain.

EverytimeIlistentoyouradvice,Igetintotrouble.

2．地點狀語從句

常用引導(dǎo)詞：where

特殊引導(dǎo)詞：wherever,anywhere,everywhere

Generally,airwillbeheavilypollutedwheretherearefactories.

Whereveryougo,youshouldworkhard.

3．原因狀語從句

常用引導(dǎo)詞：because,since,as,since

特殊引導(dǎo)詞：seeingthat,nowthat,inthat,consideringthat,giventhat,consideringthat,

MyfriendsdislikemebecauseI’mhandsomeandsuccessful.

Nowthateverybodyhascome,let’sbeginourconference.

Thehigherincometaxisharmfulinthatitmaydiscouragepeoplefromtryingtoearnmore.

Consideringthatheisnomorethan12yearsold,hisheightof1.80misquiteremarkable.

4．目的狀語從句

常用引導(dǎo)詞：sothat,inorderthat

特殊引導(dǎo)詞：lest,incase,forfearthat，inthehopethat,forthepurposethat,totheendthat

Thebossaskedthesecretarytohurryupwiththeletterssothathecouldsignthem.

Theteacherraisedhisvoiceonpurposethatthestudentsinthebackcouldhearmoreclearly.

5．結(jié)果狀語從句

常用引導(dǎo)詞：so…that,so…that,such…that,

特殊引導(dǎo)詞：suchthat,tothedegreethat,totheextentthat,tosuchadegreethat,

Hegotupsoearlythathecaughtthefirstbus.

It’ssuchagoodchancethatwemustnotmissit.

Tosuchandegreewasheexcitedthathecouldn’tsleeplastnight.

6．條件狀語從句

常用引導(dǎo)詞：if,unless,

特殊引導(dǎo)詞：as/solongas,onlyif,providing/providedthat,supposethat,incasethat,onconditionthat

We’llstartourprojectifthepresidentagrees.

Youwillcertainlysucceedsolongasyoukeepontrying.

Providedthatthereisnoopposition,weshallholdthemeetinghere.

7．讓步狀語從句

常用引導(dǎo)詞：though,although,evenif,eventhough

特殊引導(dǎo)詞：as(用在讓步狀語從句中必須要倒裝)，while(一般用在句首)，nomatter…，inspiteofthefactthat,while,whatever,whoever,wherever,whenever,however,whichever

MuchasIrespecthim,Ican’tagreetohisproposal.

盡管我很尊敬他，我卻不同意他的建議。

Theoldmanalwaysenjoysswimmingeventhoughtheweatherisrough.

Nomatterhowhardhetried,shecouldnotchangehermind.

Hewon’tlistenwhateveryoumaysay.

8．比較狀語從句

常用引導(dǎo)詞：as(同級比較),than(不同程度的比較)

特殊引導(dǎo)詞：themore…themore…;justas…，so…;AistoBwhat/asXistoY;no…morethan;notAsomuchasB

Sheisasbad-temperedashermother.

Thehouseisthreetimesasbigasours.

Themoreyouexercise,thehealthieryouwillbe.

Foodistomenwhatoilistomachine.食物之于人，猶如油之于機器。

9．方式狀語從句

常用引導(dǎo)詞：as,asif,how

特殊引導(dǎo)詞：theway

WheninRome,doastheRomando.

Shebehavedasifsheweretheboss.

Sometimesweteachourchildrenthewayourparentshavetaughtus.

三、重難點分析

1.狀語從句的省略

狀語從句同時具備下列兩個條件:①主句和從句的主語一致，或從句主語為it；②從句主要動詞是be的某種形式。從句中的主語和be動詞常可省略。例如：

When(themuseumis)completed,themuseumwillbeopentothepublicnextyear.

He’llgototheseasideforhisholidayif(itis)possible.

2.時間狀語從句中when的用法，一…就…的倒裝和時態(tài)問題

She