初中英语——If引导的条件状语从句

初中英语一一引导的条件状语从句if引导条件状语从句最常用的连词是常见的条件状语从句表示在某条件下，某事很可能发生，if,if条件是可能存在的，主句中某种情况发生的概率也是很高的如如果你请他帮忙，他会帮你的If youask him,he willhelp you.如果你考试不及格，你会让他失望的If youfail in the exam,you will let himdown.如果你作业做完了就可以回家了另外，If youhave finishedthe homework,you cango home.从句还表示不可实现的条件或根本不可能存在的条件，也就是一种虚拟的条件或假设从句if多用一般过去时或过去完成时，表示对现在或过去的一种假设如如果我是你，我会邀请他参加聚会If Iwere you,I wouldinvite himto theparty.要不是交通堵塞，我本会来I wouldhave arrivedmuch earlierif Ihad notbeen caughtinthetraffic.得早一些另外你还要注意条件句的时态搭配if从句用一般现在时，主句用一般将来时

1.if如果他用跑的，他就会及时赶到那儿If heruns hellget therein time.如果你拉猫的尾巴，它就会抓你The catwill scratchyou if you pullher tail.从句用一般现在时，主句用

2.if may/might/can如果雾在大一些，飞机可能就会改在别的机If thefog getsthicker theplane may/might bediverted.场降落如果雪停了，我们就可以出去If itstops snowingwe cango out.从句用一般现在时，主句用

3.if must/should如果你想减肥，你必须少吃面包If youwant tolose weightyou must/should eatless bread.从句用一般现在时，主句用一般现在时

4.if（也可用）如果把冰加热，它就会化成水If youheat iceit turnsto water.will turn从句用现在进行时，主句用一般将来时

5.if如果你是在找彼得，上楼就会找到他If youare lookingfor Peteryoull findhim upstairs.从句用现在完成时，主句用一般将来时

6.if如果你吃完了，我就叫服务生来算账If youhave finisheddinner Tilask thewaiter for the bill.注意学习“弓导的条件状语从句的用法，现在总结一下if”I条件句不一般，几个要点记心间；if条件句，放在前，逗号要放句中间条件句表可能，主句多用将来时；条件句表事实，主句常用现在时在引导的条件状语从句中，如果从句谈论的是一个有可能发生的事实及其产生的相关的结果，if主句用一般将来时态，从句用一般现在时态如We canwalk thereif wecant find a bus.If itrains tomorrow,wc willnot go to thezoo.What willyou doif youfindapanda indanger.如果条件句谈论的是重复发生和预示要发生的情景和事件，则主从句大多用一般现在时态if如If bearsare indanger,they attackpeople.在if引导的条件状语从句中，if和条件句位置灵活，可直接放在主句后面，若放句首，从if条件句句后面要加逗号，和主句隔开还要注意前后时态一致原则条件状语从句的时态练习if--在正确的答案下划一条线l.Dainawill go/go/goes toEurope if she willpass/pass/passes theexams.

2.The graduateswill teach/teach/teaches inthe poorvillage if the Ministryof Educationwill agree/agree/agrees soon.

3.If therewill be/are/is acar accident,they will call/call/calls110for helpat once.

4.If itwon51/don9t/doesn91/isnt rainy,we willtake/take/takes walkoutside.

5.If aUFO willland/land/lands infront ofme,I will go/go/goes into lookforthealien.

6.If he will have/have/has money,he willbulid/build/builds ascience lab.

7.Dont waitfor meif I am/will belate.

8.They wont/dont go to the beach if it willrain/rain/rains.

9.1willcall/call youif he will stay/stay/stays athome.

10.Mr Smithwilllet/let/lets youknow if hewillneed/need/needs help.

11.Will/Do/Does hevisit themuseum ifhe wont/dont/doesnt gettired

12.Where will/do/does theylive if they willmiss/miss/misses thebus

二、用所给词的适当形式填空l.If youfeeltired,youhave to have arest.

2.Where heseethe filmif hehavetime

3.If therebefewer trees,there bemore pollution.

4.Hedress morecasually ifhe notwork onweekends.

5.If Marcialivealone,she keepa petparrot.

6.Lanabuy anew dressiftheold onebeout ofstyle.

7.The twinsfightif theyargue.

1.1have abake saleif Ineedmoney foreducation.

9.Peter sendme abeautiful souvenirif hetourSpain.

10.If MrGreensay Iam hard-working,my parentsfeelglad.

11.1goto thebeachif itnot rainthis week.

12.they havea matchiftheP.E.teacherbe busy

13.Hewrite aletter tohis grandparentsif hegethis reportcard thisweek.

14.If shegetup late,she notcatch theearly bus.

15.Petermajor inEnglish ifhepass theexams inPeking University..如果他到的晚了会发生什么事情？16What ifhe late.如果努力学习，你就会取得好成绩17If you,you good..他如果看电视太久了，他的父母会不高兴18If heTV too much,his parentsunhappy..如果我们为他组织生日聚会，大家都会来的19Everyone ifwe abirthday partyhim..如果明天不下雨，我会和你一起去公园的20If ittomorrow,I goto thepark you..如果她睡过头了，就会旅游迟到的21She;the tripif she..如果他有空，他会帮助你的22If he,he you..如果考试不及格，他就没有机会上高中了23TomTom havethe togoto the highschool ifhe theexams..你如果抄同学的作业就不能学好各门功课24You goodat allthe subjectsif youthe otherstudents9homework.I.单项选择（分）15l.If youto theparty,youll havea greattime.A.will go B.went C.go D.going25It will be along timePeter hiswork.A.since,has finishedB.after,finishes C.when,will finishD.before,finishes.26What willfather usfrom JapanA.take B.bring C.carry D.make27Weifang isfamous kites.A.for B.to C.on D.with

28.I herthe answerifsheme.A.can tell,will askB.will tell,will askC.would tell,ask D.will tell,asks29-What areyou goingto dotomorrow-Well gotothelibrary tomorrowifit.A.isnt rainB.rain C.wont rainD.doesnt rain一30Do youknow when hewill come backtomorrow—Sorry,I dontknow.When heback,Ill tellyou.A.comes B.will comeC.come D.may come31What willyou doifyoutotheold fblkshome visitA.goB.went C.going D.willgo32If Ieat food,Ill bevery fat.A.too manyB.many tooC.toomuchD.much too

33.Til givethe bookto himifhehere nextSunday.A.willcomeB.comes C.is comingD.came

34.There anEnglish filmin ourschool tomorrow.A.is goingtohaveB.will haveC.is goingto beD.has

35.Could youtell uswhereA.will the next Olympic Games heldB.the next Olympic GameswillbeheldC.would thenextOlympicGames beheldD.thenextOlympicGameswould beheld

36.When mymother returnedlast night,Iabook.A.read B.am readingC.was readingD.am goingto read

37.What youwhen itbegan torainA.do,do B.were,doing C.arc,doing D.did,do

38.Til wakeyou upwhenheback.A.will B.is goingto comeC.comes D.come1—5CDBAD6—10DAACB11—15CBCBC。