if真实条件句语法及练习

一.一般现在时工含动词的一般现在时

1.be含义表示一般性，经常性的动作或一般性事实

1..谓语动词的构成2am/is/are.句型3）确定句主语+动词+其他

1.be留意

①句子的第一个单词的首字母大写；

②句末加实心点）否定句主语+动词+其他2,be not+留意

①句子的第一个单词的首字母大写；

②在动词后面加

③句末加实心点be not;）一般疑问句动词+主语+其他？

3.Be留意

①把动词提前；

②句子的第一个单词的首字母大写；

③第一人称改为其次人称;

④句末加问号be确定回答主语+动词Yes,be否定回答主语+动词+No,be not.）特殊疑问句特殊疑问词+一般疑问句？

4.含实义动词的一般现在时

1.2含义

①表示现在的事实或状态

②表示现在的习惯或反复的动作

1..谓语动词的构成2do/does.动词的第三人称单数形式的变更形式（动词的适当形式）3

①一般状况下，干脆在动词后面加例So want-wants

②以结尾的动词,力口例s,x,sh,ch,o eSowash-washes;go-goes;do-does

③以辅音字母加结尾的动词，变为再加例y yi estry-tries.句型4确定句主语+动词原形+其他（主语非三单）主语+动词的适当形式+其他（主语是三单）否定句主语动词原形+其他（主语非三单）+do+not+主语动词原形+其他（主语是三单）+does+not+一般疑问句主语+动词原形+其他？（主语非三单）Do+确定回答:主语否定回答:主语Yes,+do.No,+do+not.主语+动词原形+其他？（主语是三单）Does+确定回答主语否定回答主语Yes,+does.No,+does+not.特殊疑问句特殊疑问词+一般疑问句？

二、般将来时句型

2.1Be going to[,含义

①打算要做某事

②打算做某事.谓语动词的构成原2be going to+V.句型3

①确定句主语+原+其他be goingto+V

②否定句主语+原+其他be+not+goingto+V

③一般疑问句主语+原+其他？Be+goingto+V确定句主语+否定句主语+Yes,be.No,be+not.

④特殊疑问句特殊疑问词+一般疑问句？

2.2will/shall含义表示将要做还没有做

1..谓语动词的构成原2will/shall+V.句型3

①确定句主语+原+其他will/shall+V

②否定句主语+原+其他will/shall+not+V

③一般疑问句主语+原+其他？will/shall+V确定句主语+否定句主语Yes,will/shall.No,+will/shall+not.

④特殊疑问句特殊疑问词+一般疑问句？真实条件句（主将从现）If意为假如“，引导条件状语从句，可放在主句后，也可放在主句前，常用逗号隔开

1.if主句从句含引导的条件状语从句的复合句中，有下列状况时，用一般现在时

2.if表示将来意义当主句为一般将来时态时如If yourdaughter comes,I willcall youup.当主句是祈使句时如Please stayat homeif itrains tomorrow.当主句的谓语含有等情态动词时can,may,must如当主句的谓语是If hegoes onsmoking,it maybe verybad forhis health.等动词时hope,wish,want如I want to gothere if the rainstops.一•单项选择l.If youto the party,youll have a greattimeA.will go B.went C.go D.going

2.I herthe answerif sheme.A.can tell,will askB.will tell,will askC.would tell,ask D.will tell,asks

3.What areyou goingto dotomorrow-Wezll go to thelibrary tomorrowif it.A.isnt rainB.rain C.wont rainD.doesnt rain

4.What willyou doif youto theold folkshome visitA.go B.went C.going D.will go

5.Ill givethe bookto himif hehere nextSunday.A.will comeB.comes C.is comingD.Came

1.If hehard,he willget goodgrades.A.study B.Studies C.will studyD.Studied

1.1wanttoknow ifMary tothepartytomorrow.A.goB.Went C.will goD.goes

3.Everyone mustdress up.If youthey wontlet youin.rA.dont B.wont C.cant D.mustnt一

4.Mary willgo toSanya ifshe_____a five-day trip.A.have B.Had C.will haveD.has

5.If hecomes late,he willmiss thetrain.A.and B.So C./D.or

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

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 dressif theold onebeout ofstyle.

7.The twinsfightif theyargue.

8.Ihave abake saleif Ineedmoney foreducation.

9.Peter sendme abeautiful souvenirif hetourSpain.

10.If MrGreen sayI amhard-working,my parentsfeel glad.

11.1gotothe beachif 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.。