高一英语第一学期unit13课件.ppt

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1、Unit13languagepointsA.If和whether表示“是否”时的区别1.在动词后引起宾语从句时可以互换。Pleaseseeifthechildrenaredressedforschool.2.If不和ornot直接连用，而whether可以。Hedidn’tsayifhewouldbestayinghereornot.Pleasetellmewhetherornotyouagree.3.与不定式连用只能用whetherIdon’tknowwhethertoanswerit(ornot).4.引起同位语从句时，只能用whetherYouhaveyettoa

2、nswermyquestionwhetherIcancountonyourvote.5.引起表语从句时只能用whetherWhatwewanttoknowiswhetherhewillcomeontime.6.引起主语从句时，if从句不能位于句首，而whether可以Itisnotcleartomeif/whethershelikesthepresent.Whethershelikesthepresentisnotcleartome.7.介词后一般用whether引起宾语从句IworryaboutwhetherIhurtherfeelings.Thisdependsup

3、onwhetherheisinterestedindoingthiskindofwork.8.DinnerwasalmostoverwhenDanstilllookinghungry,grinned,andaskedDaveifhewasn’tgoingtohavesomebread.B.Pain的用法表示身体某部位的疼时，可数Shehasapaininherback/leg/head.2.表示由损伤或疾病引起的痛苦疼痛时，不可数Herbackcausesheralotofpain.3.表示精神上的痛苦，不可数Hisharshwordscausedhermuchpain

4、.4.表示努力，辛苦，操心时只用复数形式Nopains,nogains.Shetakesgreatpainswithherwork.C疑问词＋不定式结构Whattodonexthasn’tbeendecidedyet.主语Idon’tknowwhethertoanswerit.宾语Thequestionishowtoputitintopractice.表语Theyexchangedviewsonthequestionofwhomtoelect.介宾5.Thekeywithwhichtoopenthedoorhasbeenlost.定语6.Ican’tdecidewhic

5、hsweatertobuy.=Ican’tdecidewhichsweaterIshouldbuy.这种结构含有情态意义，相当于一个带should的从句。D.Oureatinghabitshavechanged,ashasourwayoflife,andthefuelweneedforourbodiesisalsodifferent.象我们的生活方式一样，我们的饮食习惯已发生了变化，我们身体所需要的养料也不同了。As在句中引起方式状语从句，此处采用了省略形式并是倒装结构，正常语序为asourwayoflifehaschanged.Shelooksforward,asdo

6、eshersecretary,tothecompletionofthebuilding.Hebelieved,asdidhisfamily,thatthekingwastheirsupremelord.Theyhaveallfinishedtheirwork,ashasshe.E.Thesamegoesfor“crashdiets”thatsomecompaniessaywillmakeusloseweightfast.go在本句中意为行的通，起作用。Thistruthgoeseverywhere.Whateverhesaysgoes.Anyothernightgoes

7、,butnotthisnight.go也可意为流传，表达Asthesayinggoes,abirdinthehandisworthtwointhebush.Thestorygoesthathewasmurdered.gofor此处意为适用于，应用于Yourbrotherisverysmart.Andthesamegoesforyou.tellsb.sth.和tellsb.aboutsth.前者意为告诉某人某事，指把某事直接告诉某人；后者意为告诉某人有关某事的情况。MarytoldonlyJohnthesecret.First,I’dlik