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初中英语初一 if条件句

第五讲if条件句

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【学习目标】： 1. 了解if条件句，及其用法

2. 通过读写训练，掌握if条件句的用法

【知识要点】

定义：常见的if条件状语从句表示在某条件下，某事很可能发生，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。

E.g. If you ask him，he will help you．

如果你请他帮忙，他会帮你的。

E.g. 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。

E.g. If you have finished the homework，you can go home．

如果你作业做完了就可以回家了。

另外，if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。

E.g.If I were you，I would invite him to the party．

如果我是你，我会邀请他参加聚会。

E.g.I would have arrived much earlier if I had not been caught in the traffic．

要不是交通堵塞，我本会来得早一些。

另外你还要注意if 条件句的时态搭配

1．if从句用一般现在时，主句用一般将来时

E.g.If he runs he’ll get there in time.

如果他用跑的，他就会及时赶到那儿。

E.g. The cat will scratch you if you pull her tail.

如果你拉猫的尾巴，它就会抓你。

2．if从句用一般现在时，主句用may/might/can

E.g. If the fog gets thicker the plane may/might be diverted.

如果雾在大一些，飞机可能就会改在别的机场降落。

E.g. If it stops snowing we can go out.

如果雪停了，我们就可以出去。

3．if从句用一般现在时，主句用must/should

E.g. If you want to lose weight you must/should eat less bread.

如果你想减肥，你必须少吃面包。

4．if从句用一般现在时，主句用一般现在时

E.g. If you heat ice it turns to water. (也可用will turn)

如果把冰加热，它就会化成水。

5．if从句用现在进行时，主句用一般将来时

E.g.If you are looking for Peter you’ll find him upstairs.

如果你是在找彼得，上楼就会找到他。

6．if从句用现在完成时，主句用一般将来时

E.g.If you have finished dinner I’ll ask the waiter for the bill.

如果你吃完了，我就叫服务生来算账

注意：

学习" if " 引导的条件状语从句的用法,现在总结一下:

if 条件句不一般,几个要点记心间;

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if 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，主句用一般将来时态，从句用一般现在时态。如：

E.g. We can walk there if we can't find a bus .

E.g. If it rains tomorrow ,we will not go to the zoo.

E.g. What will you do if you find a panda in danger.

如果if 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。

E.g. If bears are in danger ,they attack people.

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if 条件句放句首，从句后面要加逗号，和主句隔开。还要注意前后时态一致原则

【经典练习】

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. It will be a long time ____ Peter _____ his work.

A.since, has finished

B. after, finishes

C. when, will finish

D. before, finishes.

（）3. What will father _____ us from Japan?

A. take

B. bring

C. carry

D. make

（）4. Weifang is famous ______ kites.

A. for

B. to

C. on

D. with

（）5．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

（）6. – What are you going to do tomorrow?

--We’ll go to the library tomorrow if it ___.

A. isn’t ra in

B. rain

C. won’t rain

D. doesn’t rain

（）7.—Do you know when he will come back tomorrow?

--Sorry, I don’t know. When he ____ back, I’ll tell you.

A. comes

B. will come

C. come

D. may come

（）8. What will you do if you _____ to the old folk’s home visit?

A. go

B. went

C.going

D. will go

（）9. If I eat ____ food, I’ll be very fat.

A. too many

B. many too

C. too much

D. much too

（）10. I’ll give the book to him if he ___ here next Sunday.

A. will come

B. comes

C. is coming

D. came

（）11. There ____an English film in our school tomorrow.

A. is going to have

B. will have

C. is going to be

D. has

（）12. Could you tell us where ____？

A. will the next Olympic Games held

B. the next Olympic Games will be held

C. would the next Olympic Games be held

D. the next Olympic Games would be held

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二．在正确的答案下划一条线。

1. Daina ( will go/go/goes) to Europe if she (will pass/pass/passes) the exams .

2. The graduates (will teach/teach/teaches) in the poor village if the Ministry of Education (will agree/ agree/agrees) soon.

3. If there (will be/ are/is) a car accident, they (will call/call/calls) 110 for help at once.

4. If it (won’t/don’t/doesn’t/ isn’t) rainy, we (will take/ take/takes) walk outside.

5. If a UFO (will land/land/lands) in front of me, I (will go/go/goes) in to look for the alien.

6. If he (will have/have/has) money, he (will bulid/build/builds) a science lab.

7.Don’t wait for me if I (am/ will be) late.

8.They (won’t/don’t) go to the beach if it (will rain/rain /rains).

9. I (will call/ call) you if he (will stay/stay /stays) at home.

10. Mr Smith (will let/ let/lets) you know if he (will need/ need/ needs) help.

11. (Will / Do/ Does) h e visit the museum if he (won’t / don’t/ doesn’t) get tired?

12. Where (will/ do/does) they live if they (will miss/ miss/ misses) the bus?

三、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．翻译句子

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。

She__________________________ 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.

【家庭作业】

1.If she ______________(not get) home on time, her mom will be worried.

2.If Tom works hard, he_____________(make) a lot of money.

3.If I study hard, my dream ___________(实现).

4. If he ____________(争论)his friend, he will be very sad.

5.If you fight with your brother, what _____________(发生)?

6. Call me if he ________________(回来).

7. He can make great progress if he ____(追随，听从) my advice.

( )8. If I find his phone number, I ______ you.

A. tell

B. told

C. will tell

D. have told

( )9. I __ the CDs to you if I have time tomorrow.

A. will return

B. returned

C. have returned

D. return

( )10. The students will go to the Summer Palace if it ________tomorrow.

A. won' t rain

B. isn' t raining

C. doesn' t rain

D. isn' t rain

( )11. I won’t watch the TV play if my father ___ me do my homework.

A. let

B. will let

C. won’t let

D. lets

( )12. If you ___quiet, I’ll tell you what happened.

A. will

B. are C are to be D. be

( )13. If you go to the party, you ___ a good time.

A. would have

B. have

C. will have

D. had

( )14. Don’t worry. Peter will call you as soon as he _____ London.

A.will get to

B. gets to

C. get to

D. got to

( ) 15.He doesn’t tell me when he ____. I’ll telephone you as soon as he _____.

A. will come, comes

B. will come, will come

C. comes, will come

D. comes, comes

( )16.-- I don’t know if Dr. White ______ to the party next week.

– I think he will come if he ______ free.

https://www.wendangku.net/doc/5f14557864.html,es; will come

B. will come; will be

C. comes; is

D. will come; is

( )17. I don’t know if there ____ a sports meeting next month. If they _____ it, I must get ready for it.

A.is; will hold

B. will be; hold

C. will be; will hold

D. will have; hold

初中英语——If引导的条件状语从句(整理版)说课讲解

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初中英语——If引导的条件状语从句

初中英语――if引导的条件状语从句在主从复合句中修饰主句中的动词、形容词、副词等的从句叫做状语从句，状语从句一般可分为时间状语从句、地点状语从句、原因状语从句、目的状语从句、结果状语从句、条件状语从句、让步状语从句、比较状语从句和方式状语从句九种。在句子中做条件状语的从句称为条件状语从句。可置于句首、句尾，有时还可置于主语和谓语之间。引导条件状语从句的连接词有：if ,unless,as/so long as等 1.if引导的条件状语从句表示在某种条件下某事很可能发生。 If we pay much attention to the earth, we'll have a better world. 如果我们多关爱地球，就会拥有一个更美好的世界 If it rains tomorrow, what shall we do? 如果明天下雨，我们怎么办？注意：if还可以引导虚拟条件句，表示不可实现的条件，从句中多用一般过去时或过去完成时。 What would happen if there were no water ? 如果没有水会怎样？ 2.unless引导的条件状语从句 unless的意思是如果不，除非。可与if...not互换。 You will fail in English unless you work hard. 你英语考试会不及格的，除非你更加努力。 3.as /so long as引导的条件状语从句 as /so long as意思是“只要” So long as you're happy,i will be happy. 只要你高兴，我就高兴。 4.once引导的条件状语从句 once引导的条件状语从句，意为“一旦...，就”，从句可置于主句前或后 Once you begin,never stop. 一旦开始，就绝不要停止 Maths is easy to learn once you understand the rules. 一旦你理解了规则，数学就不难学了。提示：在条件状语从句中，用一般现在时代替一般将来时，用一般过去时代替过去将来时。 If the weather is bad next week, we'll put off the climbing. 如果下周天气不好，我们将推迟爬山。 Father told me if i worked hard he would buy me a gift. 爸爸告诉我，如果我努力学习，他会给我买一份礼物。

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【巩固练习】 I.单项选择。 1．—________ do you make a banana milk shake? —Peel the banana first and blend it with milk． A．What B．When C．How D．Where 2．There are two libraries in this city，________? A．aren’t there B．aren’t they C．isn’t it D. is it 3．—She doesn’t like geography，does she? —________． A．Yes，she does B．Yes，she doesn’t C．No，she does D. Yes，she is 4．________ information he offered us! We all thank him． A．What useful B．What useless C．How useful D．How useless 5．John，clean your room，________? A．will you B．shall we C．don’t you D．doesn’t he 6．—________ won the 100th gold medal at the Olympics for China? —Zhang Yining．She’s from Beijing． A．Who B．What C．When D．Where 7．Our hometown is more beautiful than before．________? A．isn’t it B．is it C．doesn’t it D．does it 8．— ________ will the foreign students be back from Xibaipo? —In five days． A．How soon B．How often C．Flow far D．How fast 9. ________ weather it is! A. What a fine B. How fine C. What fine D. How fine the 10. －_______ day it is! －Let’s go out and have a picnic. A. How cold B. How nice C. What a cloudy D. What a lovely 11. I suppose you are not going today, _________? A. are you B. do you C. don’t you D. aren’t you 12.－Don’t you often go shopping? －_________. I work very late every day. A. Yes, I do B. No, I don’t C. Yes, I don’t D. No, I do 13.－Linda had nothing for breakfast this morning , ________? －No, she got up too late. A. had she B. hadn’t she C. did she D. didn’t she 14.－_______ is that man over there? －That’s my brother. A. Who B. What C. Where D. How 15.－______ did you have the party last night? －In the park. A. What B. Why C. When D. Where 16._______ sleep too late. It’s bad for your health. A. Do B. Not C. Don’t D. Isn’t 17.________, and you will do well in physics.

初中英语条件句讲解练习及答案

条件句一、考点、热点回顾【词汇辨析】 1. accept与receive ，表示其行为是由主观意愿决定的。 accept “接受”I accepted it without question. 我毫无疑问地接受了它。 We have accepted his proposal. 我已接受了他的建议。 receive “接到、收到、受到”表示其行为与主观意愿无关。 I received a letter from him. 我收到了他的来信。 He received the present, but he did not accept. 他收到了礼物，但没有接受下来。 He received a good education.他受到了良好的教育。 [注意] 在表示接待、接见时，通常用receive, 而不用accept. 如：We often receive foreign guests. 我们经常接待外宾。 agree to，agree with与agree on(up on) 2.agree to “同意、应允”通常用于同意某件事情（我们可以同意我们自己有不同看法而并不赞同的事情）。Do you agree to this plan? He agreed to my proposal.他同意了我的提议。 agree with “同意、赞同”常常表示同某人意见一致，也可表赞同某件事情。还有“（气候、食物等）适合”之意。如： Do you agree with me ? I agree with all you say.我同意你所说的。 His words do not agree with his actions.他言行不一致。 Too much meat doesn't agree with her. 吃太多肉对她身体不合适。 agree with 不能用于被动语态。[注意]：指两方或多方就某个问题取得了一致的意见或达成了某种协议。agree on /upon “对……取得一致意见”经过讨论，双方就下次会议日After discussion the two sides agreed on the date of the next meeting. 期达成了协议。他们对这个计划意见一致。They all agree on the plan. 如：：此句型可转换成agree in doing sth.[注意]All of them agreed on / upon it. 他们对做这个问题达成了共识。= All of them agreed in doing it. 【条件句】

张道真初中英语语法之16简单句

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全国优秀畅销书，薄冰、张道真系列语法图书销售突破220万册！丨学英语，凭什么让我学语法吗？？？不时听到一些青年问道：学英语一定要学语法吗？语法应该怎么学呢？我们就这两个问题简单地谈一点个人意见。对中国学生来说，尤其是成年人，我看是学点语法好。语法，顾名思义，乃是语言的法则和规律。学习语法，尤其是一些基本法则，至少有下列几个好处：第一可以使你学得快些，因为已有现成的前人总结的法则，用不着你从头摸索。第二可以使你学得透些，因为通过语法对语言现象不仅可以知其然，而且可以知其所以然。第三可以使你学得准些，因为语法法则就是一条条准绳，可以用以衡量一句话是否正确。第四语法不但可以引你入门，更可以引你入胜，使你逐渐眼界开阔，语感加深，从而使你的英语水平不断提高。丨那么应该如何学习语法呢？我认为在学习语法过程中，应该注意下面几点：第一基本概念最重要。在学习每个语法项目时，一定要把它的基本概念搞清，牢记在心。第二要大量地实践，大量地练习。实践要包括听、说、读、写四个方面，练习要着重说和写。第三学习语法时，应多用比较法。如对动词时态、冠词、介词、名词的单、复数等较难的语法项目进行相互比较，效果就比较好。第四要将语法法则与习惯用法分开。碰到习惯用法，就不必钻牛角尖，进行徒劳的分析。而习惯用法在英语中则是大量地存在着的。第五将一本语法书通读一遍，当然也不无好处。但最好将它作为工具书，像词典一样地经常查阅，始能学得比较细致牢靠。第六实用英语语法只应是入门的向导，像一根拐棍一样。英语达到一定水平之后，就应将它扔掉。起码不要让许多语法条条充斥头脑，影响你说和写的流利性。最后可能还会有人说，语法应该学，就是太枯燥。我的感觉是：开头有点枯燥，过些时候，就会像嚼橄榄似的，越学越有味了。如若不信，请试试看。

初中英语条件状语从句语法详解

初中英语条件状语从句语法详解 (名师剖析语法知识点+ 实战训练题，值得下载打印) 一．条件状语从句的概念条件状语从句，即在某种条件下，一件事情可能发生。在英语中由连接词if或unless等引导的状语从句叫做条件状语从句。条件是指某一件事情实现之后（状语从句中），一件事情（主句）才能发生，通常译作“假如，只要，如果”等意思。条件状语从句中，主从句的时态要遵循“主将从现”的原则。即，主句是将来时态时，从句用一般现在时代替将来时态。二.条件状语从句的引导词 1.If conj . 如果，假如 If you ask him，he will help you．如果你请他帮忙，他会帮你的。 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。 2.unless conj.除非,若不,除非在……的时候（if ...not...） You will fail to arrive there in time unless you start earlier. 如果你不早点动身,你就不能及时赶到那儿。Unless it rains, the game will be played. 除非下雨,比赛将照常进行。 3.so/as long as conj.只要 You may borrow my book as long as you keep it clean. 只要你保持书的清洁，你就可以把我的书借去。三．关于条件句的时态，常见的有以下三种情况： 1、条件状语从句的主句是一般将来时，那么从句常常用一般现在时。 When I grow up, I’ll be a nurse and lo ok after patients. 我长大后要当一名护士，照顾病人。 2、如果主句是祈使句，那么从句通常要用一般现在时。 If you want to have a chat ,call me up. 如果你想聊天，打我电话。

初中英语简单句的九大基本句型

初中英语简单句的九大基本句型一、简单句的九大基本句型 1. “主语 + 谓语”即“主谓”句型这一句型英汉语言结构形式完全相同，说明“某人或某物如何动作”，或者说“某人或某物自身怎样运动”。例：They arrived in Harbin yesterday morning. 分析：“他们”主语“到了”谓语动作。 The earth turns around the sun.地球围绕太阳转。 The sun rises in the east, and sets in the west.太阳东升西落。 2. “主语 + 谓语 + 宾语”即“主谓宾”句型这一句型英汉语言的结构形式完全相同，用以说明“某人或某物做什么事情”，或者说“某人或某物发出了动作，并且其动作涉及到另一个人或物”。例：I study English. 分析：“我”主语“学习”谓语动作“英语”宾语即动作涉及的对象。 I like swimming.我喜欢游泳。 3. “主语 + 谓语 + 间接宾语 + 直接宾语”即“主谓双宾”句型这一句型英汉语序结构相同，说明“某人为谁间接宾语为人做某事”，或者说“某人或物的运动涉及到两个对象，其中一个间接对象为人，另一个为物”。例：Our teacher taught us English. 分析：“我们的老师”主语“教”谓语动作“我们”间接宾语“英语”直接宾语。 4. “主语 + 谓语 + 宾语 + 宾语补足语”即“主谓宾补”句型这一句型说明“某人或某物要求使、让某人做什么”或“某人感觉某人或物怎么样”。例： He asked her to go there.

初中英语简单句句型转换方法归纳

攻破句型转换难关，提高英语解题能力 —初中英语简单句句型转换方法归纳初中英语简单句的句型转换通常包括：肯定句变否定句；陈述句变一般疑问句；陈述句变特殊疑问句；陈述句变反意疑问句；陈述句变祈使句;陈述句感叹句;单数句变复数句或复数句变单数句;主动语态变被动语态等。简单句的句型转换是初中英语学习中的重点，也是难点。常常是英语测试题中的必考题型之一。因此，我在教学中归纳、总结了一些固定的句型转换方法，有效帮助学生提高了英语解题能力。一、归纳、总结以下单词，强化学生听、说、读、写。 1、be动词：is,am,are,was,were. 2、情态动词：can,could,will,would,shall,sho uld,may,must,need,dare. 3、否定词：not,never,few,little,hardly. 4、助动词：do,does,did,have,has,will,wou ld,is,am,are,was,were. 5、指示代词：this,that,these,those. 6、不定代词：some,any,somebody,someone, anybody,anyone,nobody,no one,everybody,ever

yone,something,anything,everything,nothing,bot h,neither,all,none. 7、人称代词：主格：I,we,you,he,she,it,they. 宾格：me,us,you,him,her,it,them. 8、物主代词：形容词性物主代词：my,our,your,his,her, its,their. 名词性物主代词：mine,ours,yours,his,her s,its,theirs. 9、感叹词：what,how. 10、特殊疑问词：（1）、what“什么”，用于对人名、物名、事件、职业、日期、天气、看法等提问。（2）、what class“哪个班”，用于对班级提问。（3）、what grade“哪个年级”，用于对年级提问。（4）、what color“什么颜色”，用于对颜色提问。（5）、what time“几点钟”，用于对点钟提问。（6）、what day“星期几”，用于对星期提问。（7）、how“怎么样”，用于对了解人物情况、做事方式、天气、看法等提问。（8）、how old“几岁”，用于对年龄提问。

初中英语初一-if条件句

if条件句【知识要点】定义：常见的if条件状语从句表示在某条件下，某事很可能发生，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。 E.g. If you ask him，he will help you．如果你请他帮忙，他会帮你的。 E.g. 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。 E.g. If you have finished the homework，you can go home．如果你作业做完了就可以回家了。另外，if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。 E.g.If I were you，I would invite him to the party．如果我是你，我会邀请他参加聚会。 E.g.I would have arrived much earlier if I had not been caught in the traffic．要不是交通堵塞，我本会来得早一些。另外你还要注意if 条件句的时态搭配 1．if从句用一般现在时，主句用一般将来时 E.g. If he runs he’ll get there in time. 如果他用跑的，他就会及时赶到那儿。 E.g. The cat will scratch you if you pull her tail. 如果你拉猫的尾巴，它就会抓你。 2．if从句用一般现在时，主句用may/might/can E.g. If the fog gets thicker the plane may/might be diverted. 如果雾在大一些，飞机可能就会改在别的机场降落。 E.g. If it stops snowing we can go out. 如果雪停了，我们就可以出去。 3．if从句用一般现在时，主句用must/should E.g. If you want to lose weight you must/should eat less bread. 如果你想减肥，你必须少吃面包。 4．if从句用一般现在时，主句用一般现在时 E.g. If you heat ice it turns to water. (也可用will turn) 如果把冰加热，它就会化成水。

初中英语虚拟语气讲练(附答案)

初中英语虚拟语气讲解及练习英语中的语气分为陈述语气、祈使语气、虚拟语气三类。虚拟语气表示说话人的主观愿望或假想，所说的是一个条件，不一定是事实，或与事实相反。条件句可分为两类，一类为真实条件句，一类为非真实条件句。非真实条件句表示的是假设的或实际可能性不大的情况，故采用虚拟语气。如果假设的情况可能发生，是真实条件句，这种情况下谓语用陈述语气。如：Iftime permits, we'll go fishing together.如果时间允许，我们就一起去钓鱼。如果假设的情况是不存在的或不大可能发生的，则是虚拟条件句。如：If youhad come yesterday, you would have met that famous professor.如果你昨天来，你就会见到那位著名的教授了。（隐含的事实是：你昨天没来，也没见到那位著名教授）。虚拟语气的基本形式和用法在含有虚拟条件句的复合句中，主从句的谓语都要用虚拟语气。 1.含有条件状语从句的复合句 wish（would rather）+宾语从句 suggest（…）+宾语从句 2.主语从句It is + adj./p.p/n.+ that+ S+ (should) +do 表语从句S+is that +s + (should) +do 同位语从句S+that +s +(should) +do 3.定语从句It is (high) time that + S + did 用过去式表现在情况

1.时态后退型用过去完成式表过去两种形式用过去将来表将来 2. should+动词原形型内容详述 I.含有条件状语从句的复合句(以do为例;S=主语) 时间条件状语从句主句与现在事实相反的假设If+S+did…S+would/should/could/might+do…与过去事实相反的假设If +S+haddone…S+would/should/could/might+havedone… 与将来事实相反的假设did… If+S should do were to do S+would/should/could/might+do… 注意事项： 1．倒装句。如果条件句中含有功能词had，should，were时，可以省去If，把功能词提前，构成倒装句。 2．错综条件句。若条件句和主句动作不存在同一个时间，则谓语形式应根据具体情况而定。 3．If there weren't/had not been+…=without… 4．If it were notfor…/If it hadn't beenfor…=butfor… 5．otherwise+虚拟语气的句子 6．虚拟语气的句子，but+陈述事实的句子

初二英语简单句

Ⅱ、口头翻译下列句子，标出句子的主语和谓语。 1. He is standing by the sea. 2. A yellow cat was sitting in the tree. 3. He often walked in the rain before. 4. They are still reading in the classroom. 5. I can write with your help. Ⅲ、标出下列句子的直接宾语和间接宾语。 1. Can you do me a favor 2. Lei Feng set us a good example. 3. He found me my bike. 4. Tom lent her some money. 5. I'll write you a letter tonight. Ⅳ、标出下列句子的系动词。 1. We should keep cool. 2. When did you become a teacher 3. How nice the meet smells! 4. KFC tastes nice. Ⅴ、标出下列句子的宾语补足语。 1. We must keep the room clean. 2. Internet makes our life better. 3. The teacher found the boy clever. 4. They get everything ready in time.

一、请判断下列句子的结构类型： is running. loud voice from the upstairs made him angry. little boy is asking the teacher all kinds of questions. seemed angry. father bought me a beautiful present. do you keep your eyes closed you tell us an exciting story must keep our classroom tidy and clean. heard the baby crying in the sitting room. you push the window open 三、判断下列句子基本结构类型 1．Do you know her younger sister 2．I got home after dark yesterday. 3．Bill always does very well at school. 4．What pet do you keep 5．There were some students reading in the classroom then. 6．Amy always helps her mother after school. 7．Tom often makes his teacher angry. 8．Did you see anyone go into that house 9．Helen looks very happy today. 10．I was born in a little town in the south of Taiwan. 四、判断句子各属于哪一基本句型。 ①One summer evening Newton[nju:tn]（牛顿）sat quietly on a bench in the garden.

初中英语语法——If引导的条件状语从句(讲解及练习).

初中英语――条件状语从句（讲解&练习） Ⅰ条件状语从句的定义 Ⅱ条件状语从句的引导词 1.if引导的条件状语从句表示在某种条件下某事很可能发生。 If we pay much attention to the earth, we'll have a better world. 如果我们多关爱地球，就会拥有一个更美好的世界 If it rains tomorrow, what shall we do? 如果明天下雨，我们怎么办？注意：if还可以引导虚拟条件句，表示不可实现的条件，从句中多用一般过去时或过去完成时。 What would happen if there were no water ? 如果没有水会怎样？ 2.unless引导的条件状语从句 unless的意思是如果不，除非。可与if...not互换。 You will fail in English unless you work hard. 你英语考试会不及格的，除非你更加努力。 3.as /so long as引导的条件状语从句 as /so long as意思是“只要” So long as you're happy,i will be happy. 只要你高兴，我就高兴。 Ⅲ条件状语从句的种类 Ⅳ条件状语从句的时态原则注意：学习" if " 引导的条件状语从句的用法,现在总结一下: if 条件句不一般,几个要点记心间; 条件句,放在前, 逗号要放句中间。条件句表真实，主将从现要遵从；条件句非真实，虚拟语气用到位。

练习 Ⅰ.单项选择（）1.If you _____ to the part y, 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. What will you do if you _____ to the old folk’s home? A. go B. went C. going D. will go （）5．I’ll give the book to him if he ___ here next Sunday. A. will come B. comes C. is coming D. came Ⅱ.用所给词的适当形式填空 6..If you ________(feel) tired, you _______________ (have) to have a rest. 7. Where _______ he _________(see) the film if he ________________(have) time? 8. If there __________(be) fewer trees, there _______________( be) more pollution. 9. If Marcia _____________(live) alone, she ___________________( keep) a pet parrot. 11. Lana ________________( buy) a new dress if the old one ____________(be) out of style. 12.The twins ______________(fight) if they_______________(argue). 13. I ____________(have) a bake sale if I _____________(need) money for education. 14. Peter _____________( send) me a beautiful souvenir if he ________________(tour) Spain. 15. I ____________(go) to the beach if it________________ ( not rain) this week. 17. __________they __________( have) a match if the P.E. teacher _____________(be) busy? 18. If she ____________(get) up late, she _____________ ( not catch) the early bus. Ⅲ.翻译下列句子 19..如果他到的晚了会发生什么事情？ What _______________ if he _____________ late? 20. 如果努力学习，你就会取得好成绩。 If you__________ _________, you good marks. 21. 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. 22. 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. 23. 如果明天不下雨，我会和你一起去公园的。