If引導(dǎo)的兩種從句(賓語從句和條件狀語從句)

重點(diǎn)、難點(diǎn)1.含有if引導(dǎo)的條件狀語從句的復(fù)合句中主從句的時(shí)態(tài)。2.If引導(dǎo)的賓語從句與條件狀語從句的區(qū)別?？记榉治鐾ǔＴ趩雾?xiàng)選擇、完形填空或補(bǔ)全、完成句子等題型中考查，分值約3—4分。知能提升（一）知識(shí)講解【認(rèn)知講解】I.if引導(dǎo)的賓語從句if引導(dǎo)賓語從句時(shí)，意思為：是否，從句的時(shí)態(tài)通常要和主句保持一致?！纠洹縄wanttoknowifhelivesthere. 我想知道他是否住在那兒。HeaskedmeifIcouldhelphim. 他問我是否能幫他?！究疾辄c(diǎn)】if、whether引導(dǎo)的賓語從句的區(qū)別1.if或whether引導(dǎo)賓語從句時(shí)，作“是否”講，常放在動(dòng)詞ask、see、say、know和findout等后面。一般情況下，兩者?？蓳Q用，在口語中多用if?！纠洹?Nobodyknowswhether/ifitwillraintomorrow. 沒有人知道明天是否下雨。 Lucyaskedwhether/iftheyhadacottonsweater. 露西問他們是否有棉制的毛衣。2.if或whether引導(dǎo)賓語從句時(shí)，要注意三個(gè)方面，即連詞、語序和時(shí)態(tài)。if或whether既不能和that或其他連詞（副詞）同時(shí)使用，也不能省略?！纠洹课也恢浪裉焓欠駮?huì)來。[誤]Idon’tknowthatif(whether)hewillcomeheretoday.[正]Idon’tknowif(whether)hewillcomeheretoday.他走過來看看貓是否出了毛病。[誤]Hecametoseewhatif(whether)therewasanythingwrongwithhiscat.[正]Hecametoseeif(whether)therewasanythingwrongwithhiscat.if或whether引導(dǎo)賓語從句時(shí)，雖具有疑問的意義，但其從句應(yīng)用陳述句的語序?！纠洹?Didyouknowthewaytothehospital?Theoldwomanaskedme.Theoldwomanaskedmeif/whetherIknewthewaytothehospital.老婦人問我是否知道去醫(yī)院的路。 if或whether引導(dǎo)的賓語從句應(yīng)和主句的時(shí)態(tài)保持一致。即主句為一般現(xiàn)在時(shí)，從句用任一種時(shí)態(tài)；主句為一般過去時(shí)，從句則用過去時(shí)中的任一種時(shí)態(tài)。【例句】 Idon’tknowif(whether)hehascomehere.我不知道他是否來過這兒。Tomaskedif(whether)Ihadreadthebook.湯姆問我是否看過這本書。3.只能用whether的情況在動(dòng)詞不定式之前只能用whether：【例句】Ican’tdecidewhethertostay.我不能決定是否留下。在whether…ornot的固定搭配中：【例句】 Iwanttoknowwhetherit’sgoodnewsornot.我想知道它是不是好消息。在介詞后，只能用whether：【例句】 Hisfatherisworriedaboutwhetherheloseshiswork.他的父親擔(dān)心他是否會(huì)失去工作。用if會(huì)引起歧義時(shí)：【例句】Couldyoutellmeifyouknowtheanswer?這句話有兩種意思：“你能告訴我你是否知道答案嗎？”或“如果你知道答案，請(qǐng)告訴我，好嗎？”。如用whether則可避免歧義?！究碱}鏈接】Idon’tknow_________theycouldpasstheexamornot.A.whyB.ifC.thatD.whether答案：D解題思路：本題考查if與whether的區(qū)別，在whether…ornot的固定搭配中通常只用whether。II.if引導(dǎo)的條件狀語從句1.含義條件狀語從句是在復(fù)合句中作條件狀語的句子。表示假如有從句的動(dòng)作發(fā)生就會(huì)有主句的動(dòng)作發(fā)生，條件狀語從句常由從屬連詞if引導(dǎo)?！纠洹縔ouwillcatchthebusifyougetupearly.如果你早起的話，就能趕上公共汽車。2.類別主祈從現(xiàn)：主句是祈使句,從句是由if引導(dǎo)的使用一般現(xiàn)在時(shí)的句子?！纠洹縄fyouwanttogo,pleasetellme.如果你想去，請(qǐng)告訴我。Printthephotoifyoulikeit.如果你喜歡這照片就把它打印出來。主將從現(xiàn)：指if引導(dǎo)的條件狀語從句用一般現(xiàn)在時(shí)，主句用一般將來時(shí)?！纠洹?Heaskedtheboys_______they______friedchicken.2.WasthewatchmadeinShanghai?Idon’tknow.(改為賓語從句) Idon’tknow_______thewatch_______madeinShanghai.3.“Doyouwanttotrysomethingnew?”Tom’smotheraskedhim.(同義句轉(zhuǎn)換)Tom’smotheraskedhim_____________________totrysomethingnew.答案：1.if/whether,wanted2.if/whether,was3.if/whetherhewantedII.用括號(hào)中所給動(dòng)詞的適當(dāng)形式填空1.Ifit_________(notrain)tomorrow,_________(let)usgoshopping.2.Please_________(tell)meifyou_________(go).3.Ifyou_________(be)ill,you_________(have)toseethedoctor.4.I_________(leave)forBeijingifit_________(notsnow)thisafternoon.答案：1.doesn’train,let2.tell,go3.are,have4.willleave,doesn’tsnowIII.將下列句子翻譯成英語。1.如果明天不下雨，我就和同學(xué)們?nèi)ヒ安汀?________________________________________________________.2.如果周日你去購物的話，我就去。 ________________________________________________________.3.如果你想減肥（loseweight），就鍛煉身體吧。 ________________________________________________________.4.如果冬天來了，春天還會(huì)遠(yuǎn)嗎？ ________________________________________________________.5.如果可能的話，我就去火車站接你。 ________________________________________________________.答案：1.Ifitdoesn’traintomorrow,Iwillhaveapicnicwithmyclassmates.2.IwillgoshoppingonSundayifyoudo.3.Takesomeexerciseifyouwanttoloseweight.4.Ifwintercomes,canspringbefarbehind?5.If(itis)possible,I’llmeetyouatthetrainstation.下學(xué)期期中復(fù)習(xí)（一）一、預(yù)習(xí)新知Module1-Module5重點(diǎn)基礎(chǔ)知識(shí)二、預(yù)習(xí)點(diǎn)撥思考問題一：能否先把這5個(gè)模塊的重點(diǎn)單詞、短語、語法整理一下？思考問題二：我們已經(jīng)學(xué)習(xí)了哪些語法？哪些還是你比較薄弱的？（答題時(shí)間：45分鐘）一、用所給動(dòng)詞的適當(dāng)形式填空。1.Ifyou________(feel)tired,you_______________(have)tohavearest.2.Where_______he_________(see)thefilmifhe________________(have)time?3.Ifthere__________(be)fewertrees,there_______________(be)morepollution.4.He_____________(dress)morecasuallyifhe________________(notwork)onweekends.5.IfMarcia_____________(live)alone,she___________________(keep)apetparrot.6.Lana________________(buy)anewdressiftheoldone____________(be)outofstyle.7.Thetwins______________(fight)ifthey_______________(argue).8.I____________(have)abakesaleifI_____________(need)moneyforeducation.9.Peter_____________(send)meabeautifulsouvenirifhe________________(tour)Spain.10.IfMrGreen___________(say)Iamhard-working,myparents_________(feel)glad.11.I____________(go)tothebeachifit________________(notrain)thisweek.12.__________they__________(have)amatchiftheP.E.teacher_____________(be)busy?13.He____(write)alettertohisgrandparentsifhe____(get)hisreportcardthisweek.14.Ifshe____________(get)uplate,she_____________(notcatch)theearlybus.15.Peter________(major)inEnglishifhe____(pass)theexamsinPeking二、完成句子（每空一詞）。1.如果你要過馬路，不要亂跑。__________aroundifyoucrosstheroad.2.明天如果下雨的話，我們將呆在家里。We__________athomeifit_____tomorrow.3.如果你能說好英語的話，你就可以容易地與外國人交談。Ifyoucan_____Englishwell,you_________________foreignerseasily.4.如果你對(duì)別人好，人們也會(huì)對(duì)你好。Ifyou’renicetopeople,they_______________toyou,too.5.如果學(xué)生不對(duì)考試如此擔(dān)心的話，他們會(huì)更開心的。Ifstudentsdon’tworryaboutexamssomuch,they_________________.6.他如果電視看太多了，他的父母會(huì)不高興。Ifhe_________TVtoomuch,hisparents____________________unhappy.7.如果我們?yōu)樗M織生日聚會(huì)，大家都會(huì)來的。Everyone________________ifwe_____________abirthdayparty__________him.8.如果明天不下雨，我會(huì)和你一起去公園的。Ifit____________________tomorrow,I______________gotothepark_________you.9.如果他有空，他會(huì)幫助你的。Ifhe_________________,he_________________you.10.如果Tom考試不及格，他就沒有機(jī)會(huì)上高中了。Tom_________havethe________togototheseniorhighschoolifhe______________theexams.三、同義句轉(zhuǎn)換。1.Studyhard,oryouwon’tpasstheexam.Ifyoustudyhard,you__________theexam.2.Takeataxi,andyou’llcatchthetrain._____you_____ataxi,you’llcatchthetrain.3.Ifyougotobedearly,youwon’tfeeltiredinthemorning._______________early,_____youwon’tfeeltiredinthemorning.4.Ifyoudon’tworkhard,yourteacherwillprobablybeangry.___________,_____yourteacherwillprobablybeangry.5.Breathedeeplyforoneminute,andyou’llfeelrelaxed._____you______deeplyforoneminute,you__________relaxed.四、閱讀下面的廣告，然后用“if...,...will...”的句式回答問題。TravelBrochureCheapCheapCheap.Beijingfortheweekend.3D/2N.BookNow.FiveStarHotel—Save50%FourStarHotel—Save40%ThreeStarHotel—Save30%BookbeforeDecember31st.BreakfastIncluded.CityTour50RMB.VisittheGreatWall100RMB.1.HowmuchwillyousaveifyoustayattheFourStarHotel?___________________________________2.HowmuchwillyousaveifyoustayattheThreeStarHotel?___________________________________3.WhatwillhappenifyoubookafterDecember31st?___________________________________4.HowmuchwillyouhavetopayifyouwanttogoontheCityTour?___________________________________5.HowmuchwillyouhavetopayifyouwanttovisittheGreatWall?___________________________________五、單項(xiàng)選擇1.Ifyou_____totheparty,you’llhaveagreattime. A.willgo B.went C.go D.going2.Itwillbealongtime____Peter_____hiswork.A.since,hasfinishedB.after,finishes C.when,willfinish D.before,finishes3.Whatwillfather_____usfromJapan?A.take B.bring C.carry D.make4.Weifangisfamous______kites.A.for B.to C.on D.with5.I____hertheanswerifshe____me.A.cantell,willask B.willtell,willask C.wouldtell,ask D.willtell,asks6.—Whatareyougoingtodotomorrow? —We’llgotothelibrarytomorrowifit___.A.isn’train B.rain C.won’train D.doesn’train7.—Doyouknowwhenhewillcomebacktomorrow?—Sorry,Idon’tknow.Whenhe____back,I’lltellyou.A.comes B.willcome C.come D.maycome8.Whatwillyoudoifyou_____totheoldfolk’shomevisit?A.go B.went C.going D.willgo9.IfIeat____food,I’llbeveryfat.A.toomany B.manytoo C.toomuch D.muchtoo10.I’llgivethebooktohimifhe___herenextSunday.A.willcome B.comes C.iscoming D.came11.There____anEnglishfilminourschooltomorrow.A.isgoingtohave B.willhave C.isgoingtobe D.has12.Couldyoutelluswhere____？ A.willthenextOlympicGamesheld B.thenextOlympicGameswillbeheld C.wouldthenextOlympicGamesbeheld D.thenextOlympicGameswouldbeheld13.Whenmymotherreturnedlastnight,I____abook. A.read B.amreading C.wasreading D.amgoingtoread14.What____you____whenitbegantorain? A.do,do B.were,doing C.are,doing D.did,do15.I’llwakeyouupwhenhe____back. A.will B.isgoingtocome C.comes D.come

一、1.feel,have 2.will,