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1、Unit3LetsreviewStevesproblem.Lastweek,Steveandhisfriendsplayedcomputergamesonhisfatherscomputer.Buthisfatherhas_him_hiscomputerforplayinggames.Hethinksthatifhe_,itwill_.Butwhenhisfatherwasout,theytriedoutthegame.Aftertheyfinishedplaying,they_thegame_thecomputer.However,someofhisfathersdocuments_when
2、theycheckedthecomputer.nottousetoldplaysgamesonitgowrongtookweremissingoffHisfatherwasangrybecausehecould_findthedocumentsanywhere.Stevedidnttellhimaboutthecomputergame.Hefeels_now.notlongerterribleReadthesentences.IfIstartafterdinner,IllfinishitbeforeIgotobed.Ifyoudoalltheseotherthingsinsteadofyour
3、homework,youwonthavetimetostudy.HethinksitwillgowrongifIplaygamesonit.条件状语从句表示主句动作发生的条件，条件状语从句表示主句动作发生的条件，在初中阶段常由在初中阶段常由if(如果如果)引导，表示假引导，表示假如有从句的动作发生就会有主句的动作如有从句的动作发生就会有主句的动作发生。发生。Pleasecallmeifheisathome.假如他在家的话，请给我打电话。假如他在家的话，请给我打电话。if引导的条件状语从句的用法引导的条件状语从句的用法if引导的条件状语从句位置灵活引导的条件状语从句位置灵活,可直接放可直接放在主
4、句后面在主句后面,也可以放在句首。放在句首时也可以放在句首。放在句首时,从句后面要用逗号和主句隔开。如：从句后面要用逗号和主句隔开。如：IllgotoseeyouifIhavetime.如果有时间，我就去看你。如果有时间，我就去看你。Ifitrainstomorrow,wellstayathome.如果明天下雨，我们就呆在家里。如果明天下雨，我们就呆在家里。时态：时态：如果主句是一般将来时态，这时从如果主句是一般将来时态，这时从句不可以用将来时态，而要用一般现在句不可以用将来时态，而要用一般现在时。例如：时。例如：Iwontgotherewithyouifitrainstomorrow.如果明
5、天下雨的话，我就不和你一起如果明天下雨的话，我就不和你一起去那儿了。去那儿了。Haveagoodrestifyouaretired.如果累了，你就好好休息一下。如果累了，你就好好休息一下。Wemuststudyhardifwewanttopassthefinalexam.如果想通如果想通过过期末考期末考试试，我，我们们必必须须努力学努力学习习。当主句是祈使句，或当主句含有情态动词时，当主句是祈使句，或当主句含有情态动词时，if引导的条件状语从句通常用一般现在时。引导的条件状语从句通常用一般现在时。学习学习if引导的条件状语从句用法的口引导的条件状语从句用法的口诀诀:if条件句不一般条件句不一般
6、,几个要点记心间几个要点记心间;条件句条件句,放在前放在前,逗号要放句中间。逗号要放句中间。条件句表可能，主句多用将来时条件句表可能，主句多用将来时;条件句表事实，主句常用现在时。条件句表事实，主句常用现在时。有时可以用有时可以用“祈使句祈使句+and/or+简单句简单句”替代条件状语从句和主句，其中替代条件状语从句和主句，其中and表示表示句意顺承，句意顺承，or则表示转折，意为则表示转折，意为“否则否则”。例如：。例如：Ifyouworkharder,youllpasstheexam.=Workharder,andyoullpasstheexam.Ifyoudonthurryup,youw
7、illmissthelastbus.=Hurryup,oryouwillmissthelastbus.Summary1.Ifhe_(not,do)it,I_(do)it.2.Ifyou_(be)lateforschool,myteacher_(be)angry.3Ifshe_(win)theprize,we_(be)happy.4.IfI_(not,eat)somuch,I_(get)thinner.5.Ifyou_(tell)them,they_(not,believe)you.arewillbewinswillbedonteatwillgettellwontbelievedoesntdow
8、illdo6I_(stay)athomeifit_(rain).7.Ifit_(not,rain),I_(go)out.8.We_(play)soccerifitis_(sun).9.Ifshe_(become)astar,herparents_(not,send)heraway.10.He_(watch)TVifhe_(be)free.willstayrainsdoesntrainwillgowillplaysunnybecomeswontsendwillwatchisRewritethesentenceswithif.1.Eatbreakfast,oryoullgethungryatsch
9、ool.Ifyoudonteatbreakfast,youllgethungryatschool.Youllgethungryatschoolifyoudonteatbreakfast.2.Hurryup!Wellbelate!Ifyoudonthurryup,wellbelate.Wellbelateifyoudonthurryup.3.Readthebookcarefully.Thenyouwillnotmakemistakes.Ifyoureadthebookcarefully,youwillnotmakemistakes.Youwillnotmakemistakesifyoureadt
10、hebookcarefully.4.DontwatchtoomuchTV,oryoureyeswillhurt.IfyouwatchtoomuchTV,youreyeswillhurt.YoureyeswillhurtifyouwatchtoomuchTV.5.Workharder!Youwillgethighermarks.Ifyouworkharder,youwillgethighermarks.Youwillgethighermarksifyouworkharder.1.Ifwe_(get)thenewssoon,we_(tell)youatonce.2.Ifthere_(be)many
11、wildanimalsintheforest,I_(becareful).3.He_(notcome)hereifyou_(nottell)himnextMonday.willtellwillbecarefulwontcomegetaredonttell4.Ifyou_(want)todownloadsomemusic,_(connect)yourMP3playerwiththecomputer.5.Ifyou_(be)unhappy,youcan_(call)me.6.Ifyourhands_(be)dirty,_(wash)them.7.Ifshe_(win)theprize,herpar
12、ents_(be)happy.wantconnectarecallarewashwinswillbe8.Ifyou_(notpractise)yourEnglish,you_(notbe)goodatit.9.Ifyou_(stay)uplate,you_(get)uplate.10.Ifshe_(drink)morehotwater,she_(feel)better.11.Ifthey_(tell)thetruth,it_(prove)thattheyrehonest.dontpractisewontbestaywillgetdrinkswillfeeltellwillproveComple
13、tethesentences.Giveadvicewiththecorrectformofthewords.HowcanIremembermyfriendsbirthdays?If_(keepanoteinyourdiary/notforget).1youkeepanoteinyourdiary,youwontforget.2Itslate,butIdontwanttogotosleep.If_(notgetenoughsleep/feeltiredatschool).3IdontlikespeakingEnglishoutsidetheclassroom.If_(notpractise/no
14、timprove).youdontgetenoughsleep,youllfeeltiredatschoolyoudontpractise,youwontimprove4ShouldItellmyteacherIdontunderstandthehomework?If_(nottellher/shenotabletohelpyou).5IsitOKifIwatchTVforsixhours?If_(youwatchtoomuchTV/eyeshurt).youdonttellher,shewontbeabletohelpyouyouwatchtoomuchTV,youreyeswillhurt
15、Ifyoufeelhungry,_.Ifyoufeeltired,_.eatsomethinghavearestLookandsay.Ifyouareill,_.Ifyourhandsaredirty,_.washthemseeadoctorIfyougetuplate,youwill_.Ifyouwanttogetgoodmarks,_.belateforschoolstudyhardIfitissunnytomorrow,wewill_.Ifitisntsunny,_.wewontplaysoccerplaysoccerIfitrains,I_.willwatchTVathomeIfitr
16、ains,I_.wontplaybasketballIfpeoplecatchthe_,theywill_him.punishthief1.Iwillbereallyhappyif_.2.IwilldowellinEnglishif_.3.Myparentswillbeangryif_.4.IfitrainsnextSaturday,_.Workinpairs.Completethesentencessothattheyaretrueforyou.IpassallmyexamsIpractisealotathomeIdontfindmymobilephoneIwillstayathomeand
17、watchafilmonTVCompletetheconversationwiththewordsandexpressionsinthebox.Answers:1.terrible2.pocketmoney3.problem4.refused5.wore6.repair7.truth8.honestCompletethepassagewiththecorrectformoftheexpressionsinthebox.Answers:1.areangrywith2.beproudof3.attheendof4.listentoEnjoyasongDont Worry,Be Happy by BobbyMcFerrin.