中考复习 if条件句

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2024年初中英语语法专项学习之if引导的从句用法

2024年初中英语语法专项学习之if引导的从句用法if的条件状语从句的用法１.if引导的条件状语从句，在if引导条件状语从句中要用现在时态替代将来时，类似还有连词before，as soon as，while，when等。

２.零条件句/绝对真实条件句(Zero Conditional)零条件句，又叫绝对真实条件句，用于阐述事实。

用来表达在该条件下，结果一定会如此(如规则，客观规律、真理等)。

结构是：If+主语+do/does，主语+do/does。

其从句和主句的谓语动词通常为一般现在时。

３.第一条件句/相对真实条件句(First Conditional)第一条件句又叫相对真实条件句，谈论将来可能发生的事情，并考虑这件事情的结果。

强调偶然性或一次性的条件，也可以与绝对真实条件句同义。

if从句用一般现在时或其他现在时，表示将来可能发生的事情(条件);主句用一般将来时，表示这件事情的结果。

结构是：If+主语+do/does，主语+will do。

４.第二条件句/现在虚拟条件句(Second Conditional)第二条件句是虚拟条件句的一种，即现在虚拟条件句(Unreal Present)，用来表达在现在或将来时间下不太可能或不可能发生的条件，这种条件句还可以用来表示试探性的、委婉的语气(可以理解为不大有自信，所以不太真实的条件)。

结构是：①与将来事实相反的非真实条件句是If+主语+should do/were to do/did，主语+would/should/could/might do;②与现在事实相反的非真实条件句是If+主语+did，主语+would/should/could/might+do。

５.第三条件句/过去虚拟条件句(Third Conditional)第三条件句是表示与过去事实相反的虚拟语气，是用来表达如果(If)当时那样发生，另外一方面(当时)结果会如何。

通常是指过去的事情，带有一切已经太迟而不能够补救的意思。

if引导的条件句是什么从句

if引导的条件句是什么从句if 引导的条件句有真实条件句和非真实条件句两种；1、真实条件句：叙述真实可能发生的事情；例句：If you fail in the exam,you will let him down.如果你考试不及格，你会让他失望的。

扩展资料2、非真实条件句：虚拟语气的一种，表示与实际已发生事实相反：例句：If I were you, I would invite him.如果我是你，我会邀请他。

3、另一个常用连词为unless,大多数时候意思与 if not 相近：例句：Let's go out for a walk unless you are too tired.我们出去散步吧，除非你太累了。

例句：If you are not too tired, let's go out for a walk.如果你不太累，我们出去散步吧。

条件状语从句的基本用法1、用if引导：if意为“如果”。

例句：If you cheat in the exam you’ll never get away with it.考试作弊必予追究。

2、用unless引导：unless的意思是“如果不”“除非”。

例句：Unless you go at once you will be late.如果你不马上走，就会迟到的'。

3、用as [so] long as引导：as [so] long as的意思是“如果”“只要”。

例句：I’ll remember that day as long as I live.只要我活着，我就不会忘记那个日子。

4、用in case引导：in case用连词引导条件状语从句时，其意为“如果”“万一”。

例句：In case I forget, please remind me about it.万一我忘记，请提醒我一下。

5、条件状语从句的时态：当主句为将来时态或含有将来意义时，条件状语从句习惯上要用一般现在时表示将来意义，而不能直接使用将来时态。

干货：if的11种用法（中考、高考）

干货：if的11种用法（中考、高考）if的12种用法（中考、高考以及稍高些的…）1.主将从现的if：表示经常发生或总是如此——这是目前中考英语常考的条目此种情况下的if后接的从句使用一般现在时或现在完成时，主句可以使用表示将来时的will, shall, can, must等情态动词，也可使用祈使句，be to do等结构。

1）We’ll go if the weather stays fine, but if it rains we’ll stay at home.2）I’ll go there, if I can find time.3）If anyone calls, tell them I’m not at home.4）If I don’t run, the train will have left. 如果我不跑，火车就会开走了。

5）If I’m going to a club, I wear much the same as I w ear for work.去俱乐部的话，我得和上班穿得差不多。

6） Should anyone call (= if anyone calls), please tell them I’m busy. （本条目以前发过）如果有人打电话来，请告诉他我正忙着。

If I stay till May, I’ll have been working here for 20 years.如果我待到5月，我在这儿工作就满20年了。

2.客观事实的if：总会这样，一般规则，客观真理，此时的if相当于when, whenever, every time，表示时间的含义。

（中高考英语不作为考查条目，需要平时了解）Accidents will happen. 意外总是难免的。

If metals gets hot it expands. 金属受热就膨胀。

Plastic will melt if it gets too hot. 塑料太热会融化。

中考复习if条件句

教案讲义学生：任课教师：教学内容：if条件句If people obey the traffic rules, there will be fewer accidents.结构：if引导的条件状语从句既可以放在句子前,也可以放在句子后;从句位于主句之前时,常用逗号将其与主句隔开;if:从属连词,意思是：“如果,假如,倘若”原句可改为：There will be fewer accidents if people obey the traffic rules.时态：if引导的条件状语从句,主句用一般将来时will,从句用一般现在时主将从现;If it rains从句, I will stay at home.I’ll go with you if you don’t want to go alone从句.如果主句是祈使句,从句要用一般现在时Don’t go and play football if you don’t finish your homework.Please call me if he comes next Sunday.主句谓语中也可以含有情态动词,如：must,can,could,should等注意主句谓语中也可以用had betternotdo,提建议If you drive too fast, you may have an accident.You must stop if the traffic is red.If the traffic lights are red,you must stop and wait. 如果交通指示灯是红的,你必须停下来等一等;If you want to lose weight,you had better take some exercise. 如果你想减肥,你最好锻炼;练习：用所给单词的正确形式填空1. If you _________ want to listen to music, __________ choose a CD.2. If you ________ buy a new camera, _________get a good one.3. If the light ___________ not come on, _________ wait for one minute.4. If it ___________ not work , __________ wait a minute and then __________try again.5. If you __________ not know how to use the camera, __________ read the instructions.6. If you ________feel tired, you _______________ have to have a rest.7. Where _______ he _________see the film if he ________________have time8. If there __________be fewer trees, there _______________ be more pollution.9. He _____________dress more casually if he ________________ not work on weekends.10. If Marcia _____________live alone, she ___________________ keep a pet parrot.拓展 if的反义词：if...not...=unless,意思是：“如果不,除非”练习：1. I won’t go there unless I hear from you.同义句I won’t go there _________ I ___________hear from you.2. I won’t go to the party if I am not invited. 同义句I won’t go to the party_____________I am invited.条件句的转换：1.有if引导的条件状语从句的复合句中,当主句和从句的主语均为you时,可转换为“祈使句,and+简单句”或“祈使句,or+简单句”You can pass the exam if you work hard. → ,and you will pass the exam.If you don't hurry up,you will be late again. → Hurry up, you will be late again.If条件状从句练习巩固练习一、单项选择you_____totheparty,you’llhaveagreattime2.–Whatareyougoingtodotomorrow--We’llgotothelibrarytomorrowifit___.’train’train’train’shomevisit,I’llbeveryfat.’llgivethebooktohimifhe___herenextSunday..,willask ,willask ,ask ,asks’llgotothefarmandhelpthefarmerswiththeapple-pickingifit____tomorrow.’train’train’training,willrain ,willrain ,rains.10．Idon’,pleaseletmeknow.,comes ,willcome ,comes ,willcome11．Youwillstayhealthy_______youdomoreexercise,suchasrunningandwalking.12. Ifshe heretomorrow,Iwilltellyou.’mwaitingformyfriend.,I’llgoshopping alone.’tcome’tcome14.—Tomwantstoknowifyouwillhaveapicnictomorrow.—,we’llplaychessinstead. ,we'llgivehimasurprise".二、用所给词的适当形式填空;you________feeltired,you_________havetohavearest.seethefilmifhe_________havetimebefewertrees,there_______bemorepollution.4.He___dressmorecasuallyifhe___notworkonweekends.livealone,she_______keepapetparrot.anewdressiftheoldone____beoutofstyle.twins_______fightifthey__________argue.haveabakesaleifI____needmoneyforeducation.sendmeabeautifulsouvenirifhe____tourSpain.sayIamhard-working,myparents___feelglad.______gotothebeachifit________notrainthisweek.havebebusy____writealettertohisgrandparentsifhe____gethisreportcardthisweek. getuplate,she_____notcatchtheearlybus.majorinEnglishifhe____passtheexamsinPekingUniversity.三．完成句子;1.如果他到的晚了会发生什么事情What___________ifhe____late2.如果努力学习,你就会取得好成绩;Ifyou_____________,you_________good_______.3.他如果看电视太久了,他的父母会不高兴;Ifhe_____TVtoomuch,hisparents______________unhappy.4.如果我们为他组织生日聚会,大家都会来的;Everyone__________ifwe_______abirthdayparty________him.5.如果明天不下雨,我会和你一起去公园的;Ifit___________tomorrow,I_____gotothepark______you.6.如果她睡过头了,就会旅游迟到的;he_____________thetripifshe_____7.如果他有空,他会帮助你的;Ifhe________,he__________you.8.如果Tom考试不及格,他就没有机会上高中了;Tom______havethe_____togotothehighschoolifhe________theexams.9.你如果抄同学的作业就不能学好各门功课;You_________goodatallthesubjectsifyou______theotherstudents’homework. 10.如果你上课睡觉,老师会生气;Ifyou______inclass,yourteacher____________直接引语变间接引语练习题：1.“Inevereatmeat.”hesaid.Hesaidthat______never______meat.2.“I’vefoundmywallet.”hesaidtome.He______methathe__________________wallet.3.“Youmustcomeherebeforefive.”hesaid.HesaidthatI______togo______beforefive.4.“Don’ttellhimthenews.”shesaid.Shetoldme___________________himthenews.5.“Stopmakingsomuchnoise,children.”hesaid.He______thechildren____________makingsomuchnoise.6.“Areyouinterestedinthis”hesaid.He____________Iwasinterestedin______.7.“Doyouknowwhereshelives”heasked.Heasked____________knewwhereshe______.8.“Wherehaveyoubeenthesedays”heasked.Heaskedme_____________________been_______days.9.Heasked,“Howdidyoufindit,mother”Heaskedhermother__________________foundit.。

2024年中考英语虚拟语气用法辨析练习题30题

2024年中考英语虚拟语气用法辨析练习题30题1.If I were you, I _____ study harder.A.willB.wouldC.shallD.should答案：B。

本题考查对现在情况的虚拟语气。

if 引导的虚拟条件句，对现在情况虚拟时，从句用一般过去时，be 动词用were，主句用“would/should/could/might + 动词原形”。

选项 A 是一般将来时，不符合虚拟语气的用法；选项 C 和 D 通常不用于这种虚拟语气的表达。

2.She _____ be very happy if she knew the truth.A.willB.wouldC.shallD.should答案：B。

同样是对现在情况的虚拟语气，主句用“would/should/could/might + 动词原形”。

选项A 一般将来时错误；选项C 和D 在此处不恰当。

3.If he had time, he _____ go to the park.A.willB.wouldD.should答案：B。

对现在情况虚拟，主句“would/should/could/might + 动词原形”。

选项A 将来时不对；选项C 和D 不用于此。

4.I _____ buy a new bike if I had enough money.A.willB.wouldC.shallD.should答案：B。

还是对现在情况的虚拟，主句用“would/should/could/might + 动词原形”。

选项A 一般将来时错误；选项C 和D 不合适。

5.If they were here, they _____ help us.A.willB.wouldC.shallD.should答案：B。

对现在情况虚拟，主句“would/should/could/might + 动词原形”。

选项A 将来时不行；选项C 和D 不恰当。

人教版中考英语复习if条件状语从句（共9页)

=Fish can't live without water.
1、If I____t_a_k_e_(take)a taxi, it_w__il_l_b__e_(be)too
expensive. 2、Put up your hands if you __h_a_v_e___(have) some
questions. 3、If you _l_e_a_v_e___(leave)the classroom,you must
turn off the light. 4、If we ___s_e_e____(see) many flowers,we
__w__i_ll_t_a_k_e_(take)many photos. 5、I don't know if it d__o_e_s_n_'t_r_a_i(nrain)tomorrow.If it __w__i_ll_r_a_i_n__ (not rain)tomorrow,we _w__i_ll_g__o_(go)to the Mountain.
3、主祈从现：主句是祈使句，从句是一般现在时
eg. Please be careful if you drive a car in the street.
借助“祈使句+and\or+简单句”在这种句子中，
and表示顺承，or则表示转折，意为“否则”。
If you work hard,you will pass the exam. =Work hard, and you'll pass tIhf eyoeuxadmo.n't hurry up, you'll miss the bus.
=If you go to the party, you will have a great time.

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教案讲义学生：任课教师：If条件状从句练习?巩固练习一、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.–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（）3.?What?will?you?do?if?you?_____?to?the?old?folk’s?home?visit??? A.?go??? B.?went??? C.?going??? D.?will?go?（）4.?If?I?eat?____?food,?I’ll?be?very?fat.?????A.?too?many???B.?many?too???C.?too?much??D.?much?too?（）5.?I’ll?give?the?book?to?him?if?he?___?here?next?Sunday.?A.?will?come????B.?comes????C.?is?coming????D.?came?（）6.?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?（）7.?We’ll?go?to?the?farm?and?help?the?farmers?with?the?apple-picking?if?it?____??tomorrow.??A.?won’t?rain?B.?will?be?rainy?C.?doesn’t?rain?D.?isn’t?raining????（）8.?There?is?going?to?_______?a?sports?meeting?next?week.?If?it?________,?we’ll?have?to?cancel?it.???A.?be,?will?rain?? ?B.?have,?will?rain????C.?be,?rains????（）9.?Your?teacher?will?be?unhappy?if?you?_______?to?school?late.?A.?come??? B.?will?come??? ?C.?are?coming???? ?D.?came?????（）10．I?don’t?know?if?he?__.?If?he?__?,?please?let?me?know.?A.?comes,?comes????B.?will?come,?will?come?C.?will?come,?comes???D.?comes,?will?come?（）11．You?will?stay?healthy?_______?you?do?more?exercise,?such?as?running?and?walking.?????? A.?if??????B.?how??????C.?before?????D.?where?（）12. If?she????? ???here?tomorrow,?I?will?tell?you.?A.?comes?????????????B.?will?come????? ????C.?come????????D.?came?（）13.?I’m?waiting?for?my?friend.??? ???,?I’ll?go?shopping?alone.??A.?If?she?comes?? ?B.?If?she?doesn’t?come??C.?If?she?won’t?come?（）14.?—Tom?wants?to?know?if?you?will?have?a?picnic?tomorrow.?—Yes.?But?if?it?______,?we’ll?play?chess?instead.?A.?will?rain????????????B.?rained??????????????C.?is?raining??????????D.?rains?（）15.?If?Tom?_____?the?game,?we'll?give?him?a?surprise".?A.?win?????B.?wins??????C.?won??????????D.?miming?二、用所给词的适当形式填空。

?1.If?you?________(feel)?tired,?you?_________?(have)?to?have?a?rest.?2.?Where?_____?he?____(see)?the?film?if?he?_________(have)?time??3.?If?there?____(be)?fewer?trees,?there?_______(?be)?more?pollution.?4.?He?___(dress)??more?casually?if?he?___(?not?work)?on?weekends.?5.?If?Marcia?_______(live)?alone,?she?_______(?keep)?a?pet?parrot.?6.?Lana?_____?buy)?a?new?dress?if?the?old?one?____(be)?out?of?style.?7.The??twins?_______(fight)?if?they__________(argue).?8.?I?______(have)?a?bake?sale?if?I?____(need)?money?for?education.?9.?Peter?____(?send)?me?a?beautiful?souvenir?if?he?____(tour)?Spain.?10.?If?Mr?Green??_______??(say)?I?am?hard-?working,?my?parents?___(?feel)?glad.11.I?______(go)?to?the?beach?if?it________?(?not?rain)?this?week.?12.?_____they?___(?have)?a?match?if?the?P.E.?teacher?__(be)?busy??13.He?____(write)?a?letter?to?his?grandparents?if?he?____(get)?his?report?card?this?week.?14.?If?she?______(get)?up?late,?she?_____?(?not?catch)?the?early?bus.?15.?Peter?____(major)?in?English?if?he?____(pass)?the?exams?in?Peking??University.?三．完成句子。

1.如果他到的晚了会发生什么事情？What?______??_____?if?he?____?late??2.?如果努力学习，你就会取得好成绩。

If?you______?_______,?you?_____?____good?_______.?3.?他如果看电视太久了，他的父母会不高兴。

If?he?_____?TV?too?much,?his?parents?_____?_________unhappy.?4.?如果我们为他组织生日聚会，大家都会来的。

Everyone?_____???_____?if?we?_______a?birthday?party?________?him.?5.如果明天不下雨，我会和你一起去公园的。

If?it?_____??______tomorrow,?I?_____?go?to?the?park?______you.?6.?如果她睡过头了，就会旅游迟到的。

he____??___??___??___????the?trip?if?she?_____???7.?如果他有空，他会帮助你的。

If?he?____?____??,?he?______?____?you.?8.?如果Tom考试不及格，他就没有机会上高中了。

?Tom?______have?the?_____to?go?to?the?high?school?if?he?________the?exams.?9.?你如果抄同学的作业就不能学好各门功课。

?You?_____?____?good?at?all?the?subjects?if?you?______?the??other?students’?homework.?? 10.如果你上课睡觉，老师会生气。

If?you______?in?class,?your?teacher?____??____??____??? 直接引语变间接引语练习题：1.?“I?never?eat?meat.”?he?said.??He?said?that?______?never?______?meat.?2.?“I’ve?found?my?wallet.”?he?said?to?me.??He?______?me?that?he?______?____________wallet.?3.?“You?must?come?here?before?five.”?he?said.?He?said?that?I?______?to?go?______?before?five.?4.?“Don’t?tell?him?the?news.”?she?said.?She?told?me?_______?______?______?him?the?news.??5.?“Stop?making?so?much?noise,?children.”?he?said.??He?______?the?children?______?______?making?so?much?noise.?6.?“Are?you?interested?in?this?”?he?said.?He?______?______?I?was?interested?in?______.?7.?“Do?you?know?where?she?lives?”?he?asked.?He?asked?______?______?knew?where?she?______.?8.?“Where?have?you?been?these?days?”?he?asked.?He?asked?me?_______?_______?_______been?_______?days.??9.?He?asked,?“How?did?you?find?it,?mother?”?He?asked?her?mother?______?______?______?found?it.?。