外研八下U5 宾语从句（that-if-whether）核心语法精练（学生版）

Unit5Lookingintonature·that/if/whet考点概览·知识回顾一、宾语从句的概念一、宾语从句的概念宾语从句是名词性从句的一种，在主从复合句中充当宾语，通常位于及物动词、介词或形容词之后。二、that引导的宾语从句当谓语动词表示肯定的概念（如希望、相信、知道、说等）时，其后的宾语从句用that引导。that没有任何词汇意义，只具有语法功能，多数情况下可以省略。例：Ihope(that)itwillrainthisafternoon.我希望今天下午会下雨。不可省略that的常见情况：(1)一个句子有多个并列宾语从句时，第一个that可省，后面的不可省。(2)句中带有插入语时，that不可省略。(3)带补语的宾语从句中，that通常不可省略。三、if/whether引导的宾语从句当一般疑问句充当句子的宾语时，用连词if或whether引导，意为“是否”，在从句中不充当任何句子成分，不可省略。宾语从句要用陈述语序。例：Idon'tknowwhether/ifshewillcomethisafternoon.我不知道她今天下午是否会来。whether与if的区别：(1)whether引导的宾语从句可置于句首，而if不能。(2)whether引导的宾语从句可直接用于介词之后，而if不能。(3)whether可与ornot直接连用，而if一般不能。四、宾语从句的时态(1)主句如果是一般现在时、现在完成时或一般将来时，从句根据实际情况选用时(2)主句如果是过去时态，从句通常也用与过去有关的时态。(3)当宾语从句表示的是普遍真理、客观事实或现在看来仍然是真实的情况时，从句用一般现在时，不受主句时态的影响。例：Mothertoldmethathonestyisthebestpolicy.妈妈告诉我诚实总是上(4)在口语中，为了强调从句涉及的某一状态在说话时仍在继续，或动作是习惯性的，从句有时也用一般现在时、现在进行时或一般将来时。一、单项选择1．Mymotheroftensays______eatingtoomuchjunkfoodisbadforhealth.A．ifB．whetherC．thatD2．I'msure______ourteamwillwinthematchtomorrow.3．I'mcertain______shecanfinishthework,butIdoubt______sheiswillingtohelp.A．that;thatB．if;ifC．that;ifD．if;that4．Ithink______wecanhavethepartyintheschoolhallonSaturday.5．Theyhope______itwillsnowthiswinter.Theywanttogoskiing.6．---Iwonder______wecanfinishtheprojectontime.---Don'tworry.Wecanaskforhelpifnecessary.7．---Doyouknow______tomorrowornot?---Sorry,Idon'tknow.Youcancheckonline.A．whetheritwillrainB．ifitwillrainC．ifdoesitrainD．whetherdoesitrain8．Couldyoupleasetellme______goontheschooltriptothezoo?A．thatwewouldB．ifwewillC．ifwewouldD．thatwewill9．Idon'tknowifit______sunnytomorrow.Ifit______sunny,Iwillgohiking.A．willbe;isB．is;will10．Idon'tknow______hewillcometothepartyornot.11．---Idon'tknowifhe______tomorrow.---Ifhe______tomorrow,Iwillinvitehimtodinner.A．willcome;comesB．comes;willcomeC．comes;comesD．willcome;willcome12．Idon'tknow______itwillsnowtomorrowornot.13．I'dliketoknow______.A．whenwillhegivebackthebookB．whetherhashebeentoAustraliaC．thathehasbeentiredD．whethershewilljoinusinthegame14．Iwanttoknowifshe______thereadingclub.Ifshedoesn'tjoinit,I______,either.A．willjoin;don'tB．willjoin;won'tC．joins;don'tD．joins;won't15．Itdoesn'tmatter______youturnleftorrightatthecrossing.Bothroadsleadtothestation.A．wheneverB．unlessC．thoughD．whether二、改写句子1．1．Theearthmovesaroundthesun.Myteachertellsus.(改为宾语从句)Myteachertellsus______theearth______aroundthesun.2．Ourschooltalentshowwillbeasuccess.I'msure.（合并成一个句子）I______ourschooltalentshowwillbeasuccess.3．Thefirefighteralwayssays,"Iamheretohelppeople."(改为宾语从句)Thefirefighteralwayssays______he______heretohelppeople.4．"I'mgoingtovisitmygrandparents,"saidtheboy.(改为宾语从句)Theboysaid______he______goingtovisithisgrandparents.5．Lucyiswondering.DoesMikeplaybasketballeveryday?(将两句并成一句)Lucyiswondering______Mike______basketballeveryday.6．"WillwehaveaspringoutinginApril?"Jasonwantedtoknow.(改为宾语从句)Jasonwantedtoknow______they______haveaspringoutinginApril.7．"Doeshelikeplayingchess?"Tomaskedme.(改为宾语从句)Tomaskedme______he______playingchess.8．Lilyaskedhergrandfather,"Doyoufinditdifficulttousethesmartphone?"（改为宾语从句）Lilyaskedhergrandfather______he______itdifficulttousethesmartphone.9．Sheaskedus,"Haveyouseensuchabeautifulsunsetbefore?"(改为宾语从句)Sheaskedus______we______seensuchabeautifulsunsetbefore.10．Themotheraskedherson,"Canyouhelpmewiththehousework?"(保持句意不变)Themotheraskedherson______he______helpherwiththehousework.三、完成句子1．我不确定他是否能赢得这场比赛。1．我不确定他是否能赢得这场比赛。Iamnotsure______hecanwinthematch______not.2．Tom问我今晚是否能和他一起去看电影。Tomaskedme______I______gotothemovieswithhimtonight.3．我问妈妈我们能否在家举办一次派对。Iaskedmymother______we______haveapartyathome.4．他问我是否仍与Kate保持联系。Heasked______IstillkeptintouchwithKate.5．我也不太确定玛丽今天会不会去超市。I'mnotsure______Marywillgotothesupermarket.6．老师告诉我们地球绕着太阳转。Theteachertoldus______theearth______aroundthesun.7．我想知道你是否能帮我。Iwonder______youcanhelpme.8．她说她明天会来。Shesaid______she______cometomorrow.9．你知道火车什么时候到吗？Doyouknow______thetrain______arrive?10．我认为这个主意不错。I______thisidea______good.一、语法填空阅读下面短文，在空白处填入1个适当的单词或者括号内单词的正确形式。Tomlovedtosing.Whenhisteachersaidthattherewasgoingtobe[1]______excitingtalentshow,hefelthappyandnervous.Tomhadtocompetewithhisbiggestrival,Jake.Jake'svoicewasbeautifulandalwayswonthefirstprize.Tomthought,"WhatwillhappenifJake[2]______(beat)me?"Tomheardtwovoices.Thefirstvoicesaid,"Youcan'tdothis!Youwilllose!"Butthen,asecondvoicesaid,"Youcansing[3]______(beautiful),Tom!Justbelieveinyourself!"Choosingtolistentothesecondvoice,Tomspenthours[4]______(practice)singingeveryday.[5]______thedayoftheshow,thehallwasfullofpeople.Jakeperformedfirstanddidagoodjob.Tomfeltundergreat[6]______(press).WhenitwasTom'sturn,hewassonervous[7]______hehadproblemsbreathing.Heheardthefirstvoiceagain.Ittoldhimtorunaway.Butthen,hissecondvoice[8]______(cheer)himup.Tombegantosing.Hecompletelyforgotabout[9]______(he)worrieswhenhegotlostinhissinging.WhenTomfinished,therewassilenceforaminute,theneveryoneclappedloudly!Tomfelthappybecausehehadtriedhisbestandwasn'tafraidanymore.Andhedecidedhewouldneveragainallowthevoiceofhisworries[10]______(be)louderthantheothervoiceinhishead.二、选词填空阅读短文，从方框中选择适当的词并用其正确形式填空，使短文通顺、意思完整。每空限填一词，每词限用一次。put,heavy,match,feel,fall,with,be,although,wake,messBencouldhearstrongwindsoutsidehishomeinAlabama.Blackcloudsweremakingtheskyverydark.Withnolightoutside,it[1]______likemidnight.ThenewsonTVreportedthataheavyrainstormwasinthearea.Everyoneintheneighborhoodwasbusy.Ben'sdadwas[2]______piecesofwoodoverthewindowswhilehismomwasmakingsuretheflashlightsandradiowereworking.Shealsoputsome