英語高頻語法小專題考點講練系列五if引導的條件狀語從句一：觀察句子，得出結論語言觀察：1.Wewillstayathomeifitrainstomorrow.2.Ifyoufinishyourhomework,youcangohomenow.3.Workhardifyouwanttopasstheexam.4.Waterbecomesiceifthetemperatureisbelowzero.二：要點歸納：if（意思為如果時）條件狀語從句表示在某條件下，某事很可能會發生。if從句可以放在主句之前，也可放在主句之后。放在主句之前時，常用逗號與主句隔開。2.if從句用一般現在時，當從句提出的是有可能實現的情況時，主句用將來時，即“主將從現”。3.if從句用一般現在時，當主句含有情態動詞時，主句用情態動詞+動詞原形（如：can/should/must/may），即“主情從現”。4.if從句用一般現在時，主句是祈使句，即“主祈從現”。5.當if從句表述的是一種真理或客觀規律時，主句和從句都用一般現在時，即主現從現。三：綜合練習一.單項選擇。1.If

you

________

to

the

party,

you’ll

have

a

great

time

A.

will

go

B.

went

C.

go

D.going2.

I

________

her

the

answer

if

she________me.

A.

can

tell,

will

ask

B.

will

tell,

will

ask

C.

would

tell,

ask

D.

will

tell,

asks3

–

What

are

you

going

to

do

tomorrow?

—We’ll

go

to

the

library

tomorrow

if

it

________.

A.

isn’t

rain

B.

rain C.

won’t

rain

D.

doesn’t

rain4.

Ifhe___________toimprovehisbasketballskills,he____________fromothers

A.wantsto,hadbetterlearn

B.

wants,willlearnC.willwant,shouldlearn

D.

willwant,willlearn

5.________arestifyou________tired.A.Take,willfeelB.Take,won’tfeelC.Taking,feelD.Take,feel6.

I’ll

give

the

book

to

him

if

he

________

here

next

Sunday.

A.

will

come

B.

comes

C.

is

coming

D.

came7.Frank________toseehisgrandmaifhe

________freetomorrow.A.willcome;willbe B.comes;isC.willcome;is D.comes;willbe8.Wewillhavenowatertodrink

________

wedon'tprotecttheearth.

A.untilB.beforeC.thoughD.if

9.Everyonemustdressup.Ifyou__________,theywon’tletyouin.A.don’tB.won’tC.can’tD.mustn’t10．Ifwe________tolearnEnglishwell,we_________useitasmuchaspossible.A.want,canB.want,mustC.arewanting,shouldD.willwant,should 11.Whatwillyoudoifyou_______yourway?A.loseB.lostC.losingD.willlose.12.Ifyou_______toomuchfood,you_______veryfat.A.willeat,areB.eat,areC.eat,willbeD.willeat,willbe13.I’llgivethebooktohimifhe_______herenextSunday.A.willcomeB.comesC.iscomingD.came14.She_______visittheCantonTowerifshe_______toGuangzhou.A.can,goesB.must,goesC.can,willgoD.must,willgo15._______thewindowifyou_______hot.A.Open,willfeelB.Open,won’tfeelC.Opening,feelD.Open,feel16．Momwon’tbehappyifshe_________thismess.A．sees B．saw C．willsee D．hasseen17．I’llgotothemeetingifit________by5:00p.m.A．ended B．willend C．end D．ends18．You________yourgoalsifyoustudyhardeveryday.A．achieve B．achieved C．willachieve D．haveachieved19．________youdon’tunderstand,askyourteacher.A．If B．Unless C．Because D．For20．—Whatwillhappen________weholdthepartynextMondayevening?—Mostofourclassmateswillnotcome.A．though B．if C．unlessD.when二.用所給單詞的適當形式填空

1.Whatwillyoubuyifyou________（have）alotofmoney2.Ifit________________（notsnow）tomorrow,wewillfeelunhappy.3.Where_______they________(have)apicnicifthey________(have)time?4.Ifyou________(be)busy,I________________(notcome)toseeyounextweek.5.Pleaseshowmethewayifyou________（know）it.6.Youwillhurtyourteethifyou________（eat）toomuchcandy.7.Ifyougivemeatoycar,I_________（be）veryhappy.8.IwillgettheprizeifI_________（work）hard.9.Myfather________________(buy)meanicegiftifhe________(visit)London.10.You______________(notcatch)theschoolbusifyou________(get)uplate.三.完成句子。

1.如果明天下雨，我會和你一起去釣魚。Ifit_________tomorrow,I____________________________ithyou.2.如果你努力學習，你的父母會很開心的。Yourparents__________________happyifyou__________________.3.如果你上學遲到了會發生什么事？W