中考英语高频语法小专题考点讲练系列五+if引导的条件状语从句.docxVIP

英语高频语法小专题考点讲练系列五if引导的条件状语从句

一：观察句子，得出结论

语言观察：

1.Wewillstayathomeifitrainstomorrow.

2.Ifyoufinishyourhomework,youcangohomenow.

3.Workhardifyouwanttopasstheexam.

4.Waterbecomesiceifthetemperatureisbelowzero.

二：要点归纳：

if（意思为如果时）条件状语从句表示在某条件下，某事很可能会发生。if从句可以放在主句之前，也可放在主句之后。放在主句之前时，常用逗号与主句隔开。

2.if从句用一般现在时，当从句提出的是有可能实现的情况时，主句用将来时，即“主将从现”。

3.if从句用一般现在时，当主句含有情态动词时，主句用情态动词+动词原形（如：can/should/must/may），即“主情从现”。

4.if从句用一般现在时，主句是祈使句，即“主祈从现”。

5.当if从句表述的是一种真理或客观规律时，主句和从句都用一般现在时，即主现从现。

三：综合练习

一.单项选择。

1.If?you?________?to?the?party,?you’ll?have?a?great?time??????

A.?will?go? B.?went? C.?go? D.going

2.?I?________?her?the?answer?if?she________me.?

A.?can?tell,?will?ask????? B.?will?tell,?will?ask?

? C.?would?tell,?ask????? D.?will?tell,?asks

3?–?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?rain

4.?Ifhe___________toimprovehisbasketballskills,he____________fromothers

?? A.wantsto,hadbetterlearn? B.?wants,willlearn

C.willwant,shouldlearn? D.?willwant,willlearn

5.________arestifyou________tired.

A.Take,willfeelB.Take,won’tfeelC.Taking,feelD.Take,feel

6.?I’ll?give?the?book?to?him?if?he?________?here?next?Sunday.?

A.?will?come????B.?comes??C.?is?coming?D.?came

7.Frank________toseehisgrandmaifhe?________freetomorrow.

A.willcome;willbe B.comes;is

C.willcome;is D.comes;willbe

8.Wewillhavenowatertodrink?________?wedontprotecttheearth.?

A.untilB.beforeC.thoughD.if

?9.Everyonemustdressup.Ifyou__________,theywon’tletyouin.

A.don’tB.won’tC.can’tD.mustn’t

10．Ifwe________tolearnEnglishwell,we_________useitasmuchaspossibl