【名師原創(chuàng)】：Unit7 易混易錯點辨析

PAGE2/2【名師原創(chuàng)】：Unit7易混易錯點辨析●whether;if（是否）【教材原句】Talkaboutwhetheryoulikethemornot.(教材P6)Iwonderifyoucouldalsogivememoreinformationabouthowtoapplytobepartofthisfestival.(教材P19)【辨析】兩者都表示“是否”，但用法有一定區(qū)別。whether=1\*GB3①引導(dǎo)主語從句可位于句首，if引導(dǎo)的主語從句只能放在句尾,用it做形式主語放句首。=2\*GB3②介詞之后賓語從句只能用whether引導(dǎo)，不能用if。=3\*GB3③whether可引導(dǎo)表語從句和同位語從句,if則不能。=4\*GB3④whether可以和動詞不定式連用，if則不能。=5\*GB3⑤在whether……ornot的固定搭配中,一般不用if。whether和if都可用it作形式主語從句中。=6\*GB3⑥在discuss/consider等某些動詞之后，只能用whether，不能用if引導(dǎo)賓語從句。if在引導(dǎo)否定概念賓語從句時，只能用if，而不用whether.【例句呈現(xiàn)】Idon’tknowwhethertheywillcomeornot.我不知道他們是否回來。Idon’tknowif/whetheritwillsnowtomorrow.我不知道明天是否會下雪。Canyoutellmewhethertogoswimmingaftersupper?你能告訴我飯后去哪兒游泳嗎？Iworryaboutwhetherhewillbeangrywithme.我擔(dān)心他是否生我的氣。Youshouldconsiderwhetherthecaryouareinterestedinisgoodvalue.你應(yīng)該考慮你感興趣的小汽車是否有價值。Ican’tdecidewhethertostay.我不能決定是否留下。Iwanttoknowwhetherit’sgoodnewsornot.我想知道是否是好消息。Hisfatherisworriedaboutwhetherhewilllosehiswork.他的父親擔(dān)心是否會失去工作。Whethertheycanfinishtheworkontimeisstillaproblem.他們是否能準時完成這項工作還是個問題。Iwanttoknowwhether/ifhelivesthere.我想知道是否他住在那兒?！究键c過關(guān)】用whether和if填空1.Heaskedme_______Icouldhelphim.2.______the2000OlympicGameswillbeinBeijingisnotknownyet.3.Successdependson_______wemakeenougheffort.4.It'suncertainhe'llcomethisevening.5.Thequestionis________itisnotworthdoing.6.Thequestion________thestudentsansweredcorrectlyshouldbedecidedbytheteacher.7.WeareuncertainMarywillcome.8.Pleasetellus________togoorstayhere.9.Wediscussed________weshouldclosetheshop.10.Heaskedme_______Ihadn'tfinishedmywork.11.Ican'tdecide________tobuythispenorthatone.12.Myquestionis_______theChineseteamcangofurther.13._______Icanpasstheexamisn’tclear.【參考答案】1.whether/if;2.Whether;3.whether;4.whether/if;5.whether;6.whether;7.whether/if;8.whether;9.whether;10.if;11.whether;12.whether;13.Whether●remain;stay【教材原句】However,thefactremainsthatTheStarryNightisnowoneoftheworld’smostfamouspaintings.(教材P8)However,traditionalChinesepaintingremainedoneofthegreatpassionsofhislife,andhealwaysconsideredhimselfpartofthattradition.(教材P21)【辨析】兩者都有“（系動詞）保持，仍然是；停留”的意思，這時兩者可以換用，但其它意義和用法有區(qū)別。remain意思是“保持，仍然是；遺留，剩下；停留，逗留；留待，尚待”，常構(gòu)成以下結(jié)構(gòu)：=1\*GB3①remain+adj.=stay+adj.保持….=2\*GB3②remain+n=stay+n仍然是…..=3\*GB3③remain+prep.+地點=stay+prep.+地點待在某地，但是，可以說stay(at)home，不能說remainathome,只能用remainhome，去掉at,兩詞組可換用。=4\*GB3④sth.remaintobedone某事尚待做=5\*GB3⑤itremaintobeseen+wh-從句…..有待觀察/看/尚待定論=6\*GB3⑥thereremains….尚有…..remain可以做名詞，意思是“遺跡，殘留物”stay意思是“保持，仍然是；停留，逗留；留宿，暫住”，常構(gòu)成以下結(jié)構(gòu)：=1\*GB3①stayfordinner留下來吃飯=2\*GB3②stayathome待在家里=3\*GB3③stayat/inahotel住旅館=4\*GB3④staythenight=stayovernight=stayover過夜=5\*GB3⑤stayaway走開，不打擾=6\*GB3⑥stayin=stay(at)home待在家里，不外出=7\*GB3⑦stayon留下來繼續(xù)（工作，學(xué)習(xí)）=8\*GB3⑧stayout待在戶外，不回家=9\*GB3⑨stayoutof….避開，遠離，不介入=10\*GB3⑩stayup熬夜stay也可以作名詞，表示“停留，暫住”等。【例句呈現(xiàn)】Mostofthehouseremainsintactevenaftertwohundredyears.雖然過了兩百年，這房子的大部分還保持完好。Thetemperatureremainedconstantwhilepressurewasavariableintheexperiment.做這實驗時溫度保持不變，但壓力可變。Itremainstobeseenwhetherhisprojectwillfly.他的計劃能否成功尚需拭目以待。Thediseaseoftenremainsundetectedformanyyears.這種疾病經(jīng)常潛伏多年而不被察覺。Thereremainstheproblemoffinance.財政問題仍然存在。Itremainstobeseenwhetherornotthisideacanbeputintopractice.這一想法能否付諸實踐還有待于觀察。WewentontoParisandstayed/remainedthereelevendays.我們接著去了巴黎，在那里停留了十一天。Westayed/remainedinavillagewheretimehasstoodstill.我們待在一個時間似乎凝滯了的村子里。Shestayedathome,afraidtoshowherface.她待在家里，不敢露面。Westayedupallnight,settingtheworldtorights.我們一夜沒睡，談?wù)撝绾握仁澜纭wantyoutostayawayfrommydaughter.我要你離我女兒遠遠的。Hisparentswon'tallowhimtostayoutlate.他的父母不會允許他在外待得很晚。【考點過關(guān)】用remain,stay的適當(dāng)形式填空1.She_______homewhilethechildrenwereyoung.2.IwenttoNingxiaand_______thereforoneyear.3.Wepromised________friendsforever.4.Wemust________competitiveinthecompetitivesociety.5.I________onthejobforfivemonthswhentheyleft.6.Birds’singingissometimesawarningtootherbirds_______away.7.Youshouldleavethosenaughtyboys_______outoftrouble.8.Lastmonth,Tomwrotetwoarticlesduringhisshort_______inhospital.9.Sofarmanyofhissongs_______popular.10.Weweretold________inourseatsmeanwhilewithourseatbeltsfastened.11.Ineverseewhathasbeendone;Ionlyseewhat_______tobedone.12.It________tobeseenwhetheryouareright.13.There________onesignificantproblemnow.14.Please_______calmwhenyoumeetwithsomedifficulties.15.Youshould________quietwhensomeoneismakingaspeech.【參考答案】1.stayed/remained;2.stayed/remained;3.tostay/remain;4.stay/remain;5.Stayed;6.tostay;7.tostay;8.stay;9.haveremained/stayed;10.toremain/stay;11.remains;12.remains;13.remains;14.remain/stay;15.stay/remain●bedoing…when…；beabouttodo…when…=beonthepointofdoing…when…；hadjustdone…when…【教材原句】Iwaswalkingdowntheroadwithtwofriendswhenthesunset;suddenlytheturnedasreadasblood…Istoodthereshaking.(教材P9)【辨析】三者都有“當(dāng)….時突然….”的意思，但是有一定區(qū)別。bedoing…when…意思是“正在做某事突然發(fā)生了另外一件事”。beabouttodo…when…=beonthepointofdoing…when…意思是“就要做某事突然發(fā)生了另一件事”。hadjustdone…when…意思是“剛做完一件事突然發(fā)生了另一件事”。【例句呈現(xiàn)】Hewasjustabouttodivewhenhesawtheshark.他剛要跳水，突然看見了鯊魚。Hehadjusthadhismealwhenafamiliarvoicecametohisears.他剛吃完飯，突然聽到一個熟悉的聲音。Jimwasonthepointoftellingafunnystorywhenhebrokeofftoanswerthetelephone.吉姆正要講一個可笑的故事，突然停下來接了個電話。Hewasonthepointofgivingupwhenhismotherencouragedhim.他正要放棄時，母親鼓勵了他。IwasabouttostealafewpiecesofsilverwhenIsawamanfromtheothersideofthestreetcomerunningintotheshop.我正要偷幾塊銀子，突然看見一個男人從大街的另一邊往店里跑來。Wehadmarchedonlyalittlewaywhenwecameuponagroupoffiftyhorsemen.我們剛走沒多遠就遇上了一個五十人的馬隊。Weweredoingourhomeworkwhenthelightwentout.我們正在做家庭作業(yè)，燈突然熄了。Wewererollingalongmerrilywhensuddenlywehadabursttyre.我們正乘車快樂地行進著，突然間輪胎爆了。TheywerewatchingtheWorldCupwhensuddenlythelightswentout.他們正看著世界杯比賽,突然燈滅了。Weweredrinkingbeerandtradingstorieswhensuddenlymywifecameback.我們正在喝啤酒，互相侃著奇聞軼事，這時候我妻子突然回來了。Theheadmasterwasabouttoleavetheofficewhensuddenlyaboyrushedin.校長正要離開辦公室,這時一個男孩沖了進來。Hewasabouttogiveupthequestion,whensuddenlyhefoundtheanswer.當(dāng)他正準備放棄這個問題時,突然找到了解決的答案。Hewastalkingawayabouthisplanswhensuddenlythelightswentoff.他還在喋喋不休地講著他的計劃，這時燈突然滅了。OnenightIwashavingagoodsleep,whensuddenlyIheardmydogyapping.一天夜里我正在熟睡，突然聽到狗狂吠起來。Wewerehavingapicnic,whensuddenlytherecameadownpour.當(dāng)我們正在舉行野餐的時候,忽然大雨傾盆。Wehadjustreachedhomewhenthepetrolgaveout.我們剛到家汽油就沒了。【考點過關(guān)】根據(jù)bedoing…when…；beabouttodo…when…=beonthepointofdoing…when…；hadjustdone…when…用法填空。1.Hehadjustsatdowntothinkaboutwhattodonext______suddenlythecatbegantospeak!2.Theywereonthepoint______drivingdownacountryroadwhensuddenlythebusranofftheroadandcrashedintoanoldfarmer'sbarn.3.HehadjustleftwhenIarrived.4.Theremainingmenwereabout_______(leave)whensuddenlyayoungmanrushedintothehouse,almosttooexcitedtospeak.5.Iwaslyingawakeonmybed______suddenlySarahcameinsideandstartedscreaming.6.Wewereabouttotalk_______hesuddenlytookhisjacketandrunaway.7.Hewasenjoyingabagofpeanuts______hesuddenlybecameshortofbreath.8.Thewholefamilywasabout______(have)ahappyreunionontheeveoftheSpringFestivalwhenthepowersuddenlywentoff.9.Wehadjustfallenasleep______thetelephonerang.10.Wewereabout_______(get)onthetrainwhentheexplosionoccurred.11.Hewas______thepointofdescribingaratherterrifyingexperiencewhentherewasaloudcrashfromthebedroomabove.12.Shehadjustfinisheddressing______herguestscamein.【參考答案】1.when;2.of;3.toleave;4.when;5.when;6.when;7.when;8.tohave;9.when;10.toget;11.on;12.when●cause(vt);leadto【教材原句】ManyexpertssaythatTheScreamisconnectedtoMunch’smentalhealthproblems,whichcausedhimalotofpain.(教材P9)【辨析】兩者都有“導(dǎo)致，引起”的意思，在這種意思前提下，一般可以互換，但是在其它意思上有一定區(qū)別。cause意思是“導(dǎo)致，引起”，一般導(dǎo)致的是壞的結(jié)果。也可以構(gòu)成詞組causesb./sth.todosth.意思是“引起/導(dǎo)致某人或某物做某事”。leadto….意思是“導(dǎo)致，引起；通向”，導(dǎo)致的后果可好可壞也可以是中性的，to是介詞，后面一般接名詞。溫馨提示：=1\*GB3①leadsb./sth.todosth.引起某人/某物做某事=2\*GB3②leadsb./sth.to/into+地點把某人/某物領(lǐng)到某地/進入某地=3\*GB3③指壞的結(jié)果時，兩者可以互換；做“通向”講時，不可互換?！纠涑尸F(xiàn)】Hehaswarnedthattheseriousriftswithinthecountrycouldleadtocivilwar.他已經(jīng)發(fā)出了警告，國家內(nèi)部嚴重的不和可能會引發(fā)內(nèi)戰(zhàn)。Strainingtoliftheavyweightscanleadtoariseinbloodpressure.用力提重物會導(dǎo)致血壓升高。Heagreedthatthesepolicieswillleadtogridlockinthefuture.他認為這些政策將來會導(dǎo)致僵局。Tamperingwithasingleenzymecanleadtountowardeffectselsewhere.破壞一種酶可能會導(dǎo)致在別處出現(xiàn)異常。Therearerecognizedblackspotsinmarriageswhichcanleadtotrouble婚姻中有一些公認的容易引發(fā)問題的雷區(qū)。Soheadnorthwestuntilyoufindariverwhichshouldleadtothecoast.一直向西北方向走，直到你發(fā)現(xiàn)一條小河，這條小河通向海岸。Repairsandimprovementscanleadtohigherrentalrates.修繕后可以提高租價。Firehascausedseveredamagetothecontentsofthebuilding.大火導(dǎo)致那棟大樓里的東西嚴重損毀。Acombinationofinternalandexternalfactorscausedthecompanytoclosedown.內(nèi)外因結(jié)合導(dǎo)致了公司的倒閉。Thedrugmaycauseanaggravationofthecondition.這種藥可能導(dǎo)致病情惡化。Thediseasecancausesterilityinmenandwomen.這種疾病可能導(dǎo)致男女不育。Heavysnowhascausedtotalchaosontheroads.大雪導(dǎo)致道路上交通一片混亂。Anxietycanbecausedbylackofsleep.睡眠不足可能導(dǎo)致焦慮。Researchersarestilltryingtoisolatethegenethatcausesthisabnormality.研究人員仍然在試圖分離導(dǎo)致這種畸形的基因?！究键c過關(guān)】根據(jù)leadto和cause的用法,用其適當(dāng)形式填空1.Afaultyconnection_______themachinetostopthatday.2.Ifyoustringtheseexperiencestogether,youcanfindanewliferoadwill______yourfuture.3.Thepoorharvest________pricestorisesharplyduringthosedays.4.Hestillbelievedthathonestyandindustrywould______success.5.Vitamindeficiencyinthedietcan________illness.6.Excuseme,doesthisroad_______therailwaystation?7.Heavyseascan_______cancellationofferryservices.8.Therewerefearsthatprivatizationwould_______joblosses.9.Defeatcould_______onesidetoescalatetheconflict.10.Abusecan_______bothpsychologicalandemotionalproblems.11.Strongcoffeeortealateatnightmay_______sleeplessness12.Apoordietwillultimately________illness.13.Generally,alackofmagnesium_______musclestogointospasm.14.Excessivedrinkingcan________stomachdisorders.15.Initspresentform,thelawcould_______newinjustices.【參考答案】1.caused;2.leadto;3.caused;4.leadto;5.leadto/cause;6.leadto;7.leadto/cause;8.cause/leadto;9.cause;10.cause/leadto;11.leadto/cause;12.cause/leadto;13.causes;14.cause/leadto;15.cause/leadto●forthefirsttime;thefirsttime【教材原句】Theaudiencedidnothesitatetoapplaudloudlyasthefamouscomposerwalkedoutontothestageforthefirsttimein12years.(教材P15)【辨析】forthefirsttime意思是“第一次”，是介詞短語，做狀語，不能引導(dǎo)從句。thefirsttime(that)….意思是“當(dāng)?shù)谝淮巍?的時候”，是從屬連詞，引導(dǎo)時間狀語從句。溫馨提示：=1\*GB3①以上結(jié)構(gòu)中的first可根據(jù)情況換成不同的序數(shù)詞。=2\*GB3②anytime,eachtime,everytime,thefirsttime,(the)lasttime,nexttime等也可以作連詞，引導(dǎo)時間狀語從句?！纠涑尸F(xiàn)】Forthefirsttimeinyears,shefeltincommandofherlife.多少年來第一次，她覺得生活掌握在自己的手里。InthedistancewespiedthePacificforthefirsttime.在遠處，我們突然第一次看到了太平洋。I'llneverforgethearingthispieceofmusicforthefirsttime.我永遠不會忘記第一次聽到這首曲子的情景。Hewasmarriedforthesecondtime,thistimetoaBelgian他第二次結(jié)婚，這一次是和一個比利時人。Longenoughtoseethemswitchforthesecondtime.已經(jīng)看著他們換第二次班了Thecockhascrowedforthethirdtime.雞唱三遍。Michaelisaliveandhe’sgothimselflockedupforthethirdtime.新劇中，邁克還活著，而且第三次身陷獄中。I'mwarningyouforthelasttime─stoptalking!我最后一次警告你——閉嘴！Youhaveannoyedmeforthelasttime.這將是你最后一次惹惱我Youcancomeupandseemeanytime(that)youlike.你什么時候想來看我就來好了。AnytimeyoucometoLondondolookmeup.你無論什么時候到倫敦來，一定要來看我。Anytimeyouwantababysitter,dear,youonlyhavetoask.親愛的，你什么時候需要人幫忙照看孩子，只要開口說一聲就行。Thecolorsgentlyfadeeachtimeyouwashtheshirt.襯衣每洗一次都會褪點色。TheycomplimentedmeonthewayIlookedeachtimetheysawme.每次見到我，他們都稱贊我的外貌。EachtimeIreturnedIwasstruckbytheuniquenessofAustraliaanditspeople.每次返回，我都會驚訝于澳大利亞及其國民的與眾不同。Youdon’thavetogorunningupstairseverytimesherings.用不著她一來電話你就往樓上跑。Thechildisafraidofdogsandcrieseverytimeonecomescloseby.那孩子怕狗，每當(dāng)有狗靠近他就哭。Everytimeshetravelsonthebusit’sdelayedbyatleastthreehours.每次她乘公車出行都至少耽擱3個小時。ThefirsttimeIcamehere,Ihadthebestnight’ssleepformonths.我第一次來到這里就睡了數(shù)月來頭一個晚上的好覺。Thecompanystruckoutthefirsttimeittriedtomanufacturepersonalcomputers.該公司初次嘗試生產(chǎn)個人電腦時就失敗了。LasttimeItookmypulse,itwasabitfast.我上次量脈搏的時候有點快。Thelasttimewemovedhousetherewereveryfewbreakages.我們上次搬家?guī)缀鯖]什么物品被破損。Dolookmeupthenexttimeyou’reinLondon.你下次到倫敦，務(wù)必來找我。Nexttimeyougoshopping,throwinafewextrafruitandvegetables.下次你去買東西，多買點水果蔬菜。Hedidn'tconfideanythingtoyouthelasttimehesawyou?他最后一次見到你時，沒有向你吐露任何事嗎？IknewthatthenexttimeIsawmynieceshewouldbewalkingandtalking.我知道下一次看到侄女時，她就會走路會說話了。ThefirsttimeIsawTodd,Ididn'tnoticehimatall.我第一次見到托德時，根本沒注意他。HefellinlovewithMarythefirsttimehesawher.他對瑪麗一見鐘情.ThefirsttimeIsawhim,hewasreadingabook.我第一次見到他時，他正在讀書。ThelasttimeIsawhimhewasinNewYork.我最后一次看見他時,他在紐約。Nexttimeyoucome,youwillseethescientist.你下次來時就會見到那位科學(xué)家。EverytimeIseeher,shewearsdifferentclothes.我每次見到她，看見她總是穿不同的衣服。Eachtimethetouristtraveledbyboathegotseasick.這位旅客每次坐船行時都暈船?！究键c過關(guān)】從A、B、C、D四個選項中選出最佳選項1.Comeandseeus_______thatyou'reintown.A.anytimeB.untilCsothatD.evenif2.______Iaskyoutodosomething.youalwayssayyou'retoobusy.A.NowthatB.eventhoughC.EachtimeD.Incase3.Hefeltnervous_______shespoketohim.A.sothatB.eachtimeCincaseD.nowthat4.Youmustpresentyourlibraryticket_______youborrowbooks.A.everytimeB.incase.C.evenifD.ifonly5.Theyspoiltheirchildbybuyinghimatoytheygoshopping.A.evenifB.nowthatC.sothat.D.everytime6._______I'vefoundmyselfinasocialsituationwithmyboss,weseemtorunoutofconversationaftertwominutes!A.EversinceB.SoonafterC.EverytimeD.Incase7.Shewassoattractiveandhefellinlovewithher________thathemether.AaslongasB.nowthatC.thefirsttimeDinorderthat8._______wemadeaclaimonourinsurancetheypaidupreallyquickly.A.LasttimeB.IncaseC.EvenifD.Nowthat9._______Iwenttothepubwithyou,Iendedupseriouslyoutofpocket!B.EvenalthoughC.ThelasttimeD.EversinceA.Inorderthat10.Whydon'tyoudropinforadrink_______you'reoverthisway?A.nexttimeB.incaseC.eversinceD.sothat11._______youdecidetotakesomeaction,kindlyinformme.A.NowthatB.IncaseC.NexttimeD.Ifonly12.Hegoesthroughthewholeperformanceofcheckingtheoilandwater______hedrivesthecar.A.sothatB.everytimeC.eventhoughD.Sincethen【參考答案】1-5ACBAD6-10CCACA11-12CB●主語+usedtodo;主語+be/getusedtodoingsth.;主語+beusedtodosth.【教材原句】NewYorkersusedtoseethegraffitionthewallsofpoorneighborhoodsandsubwaytrainsassomethingthreateningandasanexampleofurbandecay.(教材P22)KelRodriguez,whousedtopaintNewYorksubwaytrains,nowworksasanartdirectorforoneofthebiggestnewspapersintheUnitedStates.(教材P23)【辨析】主語+usedtodosth.表示“過去常常”，說明過去經(jīng)常發(fā)生的動作或存在的狀態(tài)，但現(xiàn)在已經(jīng)不那樣做或已經(jīng)不存在了。其中的to是不定式符號,后面要接動詞原形。它只有過去式一種形式,可以用于所有人稱。主語+be/getusedtosth./doingsth.表示“習(xí)慣于做某事”，to是介詞，后面接名詞、代詞或動名詞，be是系動詞,可以用于過去、現(xiàn)在、將來的多種時態(tài),還可以用get,become等詞來代替。主語+beusedtodosth.=主語+beusedfordoi