Unit13languagepointsA.If和whether表示“是否”時(shí)的區(qū)別1.在動(dòng)詞后引起賓語(yǔ)從句時(shí)可以互換。

Pleaseseeifthechildrenaredressedforschool.2.If不和ornot直接連用，而whether可以。

Hedidn’tsayifhewouldbestayinghereornot.Pleasetellmewhetherornotyouagree.3.與不定式連用只能用whetherIdon’tknowwhethertoanswerit(ornot).4.引起同位語(yǔ)從句時(shí)，只能用whetherYouhaveyettoanswermyquestionwhetherIcancountonyourvote.5.引起表語(yǔ)從句時(shí)只能用whetherWhatwewanttoknowiswhetherhewillcomeontime.6.引起主語(yǔ)從句時(shí)，if從句不能位于句首，而whether可以

Itisnotcleartomeif/whethershelikesthepresent.Whethershelikesthepresentisnotcleartome.7.介詞后一般用whether引起賓語(yǔ)從句

IworryaboutwhetherIhurtherfeelings.Thisdependsuponwhetherheisinterestedindoingthiskindofwork.8.DinnerwasalmostoverwhenDanstilllookinghungry,grinned,andaskedDaveifhewasn’tgoingtohavesomebread.B.Pain的用法表示身體某部位的疼時(shí)，可數(shù)

Shehasapaininherback/leg/head.2.表示由損傷或疾病引起的痛苦疼痛時(shí)，不可數(shù)

Herbackcausesheralotofpain.3.表示精神上的痛苦，不可數(shù)

Hisharshwordscausedhermuchpain.4.表示努力，辛苦，操心時(shí)只用復(fù)數(shù)形式

Nopains,nogains.Shetakesgreatpainswithherwork.C疑問(wèn)詞＋不定式結(jié)構(gòu)Whattodonexthasn’tbeendecidedyet.主語(yǔ)Idon’tknowwhethertoanswerit.賓語(yǔ)Thequestionishowtoputitintopractice.表語(yǔ)Theyexchangedviewsonthequestionofwhomtoelect.介賓5.Thekeywithwhichtoopenthedoorhasbeenlost.定語(yǔ)6.Ican’tdecidewhichsweatertobuy.=Ican’tdecidewhichsweaterIshouldbuy.

這種結(jié)構(gòu)含有情態(tài)意義，相當(dāng)于一個(gè)帶should的從句。D.Oureatinghabitshavechanged,ashasourwayoflife,andthefuelweneedforourbodiesisalsodifferent.象我們的生活方式一樣，我們的飲食習(xí)慣已發(fā)生了變化，我們身體所需要的養(yǎng)料也不同了。As在句中引起方式狀語(yǔ)從句，此處采用了省略形式并是倒裝結(jié)構(gòu)，正常語(yǔ)序?yàn)閍sourwayoflifehaschanged.Shelooksforward,asdoeshersecretary,tothecompletionofthebuilding.Hebelieved,asdidhisfamily,thatthekingwastheirsupremelord.Theyhaveallfinishedtheirwork,ashasshe.E.Thesamegoesfor“crashdiets”thatsomecompaniessaywillmakeusloseweightfast.go在本句中意為行的通，起作用。

Thistruthgoeseverywhere.Whateverhesaysgoes.Anyothernightgoes,butnotthisnight.go也可意為流傳，表達(dá)

Asthesayinggoes,abirdinthehandisworthtwointhebush.Thestorygoesthathewasmurdered.gofor此處意為適用于，應(yīng)用于Yourbrotherisverysmart.Andthesamegoesforyou.tellsb.sth.和tellsb.aboutsth.前者意為告訴某人某事，指把某事直接告訴某人；后者意為告訴某人有關(guān)某事的情況。MarytoldonlyJohnthesecret.First,I’dliketotellyouafewthingsaboutthisfactory.HetoldmenothingaboutwhatIshoulddo.瑪麗只把秘密告訴了約翰。首先，我想告訴你們有關(guān)這家工廠的一些情況。對(duì)于我該干什么，他什么也沒告訴我。bewellprepared=bereadyforBrain表示大腦時(shí)UorCHe’snice,buthasn’tgotmuchpain.Themanhasafinebrain.Brain表示頭腦智慧時(shí)常用brains,UBrainsismorethanjusteducation.Hehasmuchbrains.I.Itisprobablybetter,however,ifwespendourtimeandmoneyinbuyinggoodfoodandkeepingabalanceddiet.然而，要是我們把時(shí)間和金錢花在購(gòu)買美食，保持均衡的飲食上，情況也許會(huì)好一些。1.probably/possiblyProbably:可能性較大，推理成分更重，表說(shuō)話者相當(dāng)有把握。Possibly:只是理論上的可能性，實(shí)際發(fā)生的可能性很小，表說(shuō)話者的一種推測(cè)。1)Inall,thereareprobablynomorethanatotalof400tigersleftinChina.2)Possiblythispersondiedwithoutanyoneknowingwherethecoinswerehidden.D.Traditionaldietsoftenhavetoomuchfatandtoomanycaloriesforthe21stcenturyperson.對(duì)21世紀(jì)的人來(lái)說(shuō)，傳統(tǒng)的飲食往往含有太多的脂肪和卡路里。1)diet與food的區(qū)別：diet和food都可作“食物”解。但diet指的是習(xí)慣的食物或規(guī)定的食物，特指維持健康的定量或定質(zhì)的食物，如病人的療養(yǎng)飲食。food是一般的詞語(yǔ)，凡能吃喝的東西都可稱為food。如：a.Thedoctorhasorderedmeaspecialdiet.b.Properdietandexercisearebothimportantforhealth.c.Milkisthenaturalfoodforyoungbabies.d.Theygaveusplentyoffoodanddrink._____wewillgocampingtomorrowdependsontheweather.IfB.WhetherC.ThatD.Where2.---Mum,IthinkI’m____togetbacktoschool.---Notreally,mydear.You’dbetterstayathomeforanotherdayortwo.sowellB.sogoodC.wellenoughD.goodenough3.I’veworkedwithchildrenbefore,soIknowwhat____inmynewjob.expectedB.toexpectC.tobeexpectingD.expectsBCB4.Allenhadtocallataxibecausetheboxwas____tocarryallthewayhome.A.muchtooheavyB.toomuchheavyC.heavytoomuchD.tooheavymuch5.Thereare5pairs____,butI’matalosswhichtobuy.A.tobechosenB.tochoosefromC.tochooseD.forchoosing6.Tom’smotherkepttellinghimthatheshouldworkharder,but___didn’thelp.A.heB.whichC.sheD.itABD7.Hemadeanotherwonderfuldiscovery,_____ofgreatimportancetoscience.whichIthinkisB.whichIthinkitisC.whichIthinkitD.Ithinkwhichis8.Idon’tlike____youspeaktoher.A.thewayB.thewayinthatC.thewaywhichD.thewayofwhich9.Somepassengerscomplainthatitusually____solongtofillintravelinsurancedocuments.A.costsB.takesC.spendsD.sparesAABConsolidationMysisteradvisedmethatI____accepttheinvitation.A.couldB.mustC.shouldD.mightI___theboytosavemoney,buthewouldnotlistentome.A.hopedB.suggestedC.madeD.advised2.Youhavetotakegreat____toimproveyourwrittenEnglish.A.painsB.painC.apainD.aches3.Thereisn’tanydifferencebetweenthetwo;Ireallydon’tknow______.A.wheretochooseB.whichtochooseC.tochoosewhatD.tochoosewhichCDAB4.Everyonehadanapplicationforminhishand,butnooneknewwhichofficeroom______.tosendittoB.tosendittobesenttoD.tohaveitsent5.HetriedtolearnEnglishwell,___didhisclassmates.asB.whichC.thatD.and6.He____toleadusoutoftheforestbutwerefusedhim.offeredB.consideredC.enjoyedD.advised7.Becauseofhisstomachache,wewerekept____fortwohours.A.waitingB.towaitC.waitD.fromwaitingAAAA8.---Doyouknowthathewillbeournewheadmaster?---Yes,Ihavealreadybeentold_____.itB.toitC.aboutitD.withit9.Itwassuggestedthatthesportsmeet___untilthenextweek.wasputoffB.wouldbeputoffC.beputoffD.oughtto