初中英语——If引导的条件状语从句(整理版)说课讲解
初中语法 if引导的条件状语从句
学习目标:1、了解并掌握if引导的条件状语从句的意思2、了解并掌握if引导的条件状语从句的位置3、了解并掌握if引导的条件状语从句的用法一、if引导的条件状语从句的意思如果....,就....二、if引导的条件状语从句的位置有几种情况1、if you go to London, make sure you visit the Science Museum.2、She will go to America for English study if Mary passes the exam.3、If it rains tomorrow, we will have a picnic next week.4、Work hard if you want to succeed.5、He thinks it will go wrong if I play games on it.分析一下结构:____________________________________________________________________________练习:判断下列句子的主从句1.if you go to London, make sure you visit the Science Museum.2.She will go to America for English study if Mary passes the exam.3.If it rains tomorrow, we will have a picnic next week.4.Work hard if you want to succeed.5.He thinks it will go wrong if I play games on it.三、if引导的条件状语从句的用法(A)1.If you ever go to London, make sure you visit the Science Museum.2.Work hard if you want to succeed.3.If you don’t like watching TV, reading a book.4.Put on some warm clothes if the weather gets colder.5.If you do not feel well, please go to see the doctor.总结:______________________________________练习:1.If you _________(want) to see old machines _________(go) to museum.2.If you _________(visit) London,_________(take) a boat trip on the river.3.If the computer does not _________(start) immediately,_________(wait) for one minute.4.If the weather_________(get) colder,_________(put) on warm clothes.5.If any student_________(have) a high fever,_________(send) him/her to the school doctor at once.6.If you_________(want) to know how it works,_________(read) the book.(B)1.If I start after dinner, I’ll finish it before I go to bed.2.If you do all these other things, you won’t have time to study.3.If you offer to do some housework, he will realise that you are very sorry.4.He thinks it will go wrong if I play games on it.总结:____________________________________________________________________________Join the sentence with if.例:Listen in class, or you will not understand what to do.→If you do not listen in class, you will not understand what to do.1.Eat breakfast, or you will get hungry at school._____________________________________________________________________ 2.Hurry up!You will be late._____________________________________________________________________ 3.Read the book carefully.Then you will not make mistakes._____________________________________________________________________ 4.Don’t watch too much TV, or your eyes will hurt._____________________________________________________________________ 5.Work harder! You will get higher marks._____________________________________________________________________练习:用所给动词的适当形式填空。
初二英语试讲模板(If引导的条件状语从句40分钟示范)
初二英语试讲――if引导的条件状语从句40分钟示范模板(知识讲解+课堂练习+课后作业)学习目标:掌握If引导的条件状语的用法。
第一部分知识要点( 10分钟)1.先带领学生复习学习" if " 引导的条件状语从句的用法, 然后老师给出口诀:(举例子3分钟,口诀2分钟)举例子:. 1)如果你想听音乐,就打开收音机If you want to listen to music, turn on the radio.2)如果明天不下雨,我们就出去散步。
. If it (won’t/don’t/doesn’t/ isn’t) rainy, we (will take/ take/takes) walk outside.If用法口诀: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。
2. 口诀讲解(5分钟)1)主将从现在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:We can walk there if we can't find a bus .If it rains tomorrow ,we will not go to the zoo.What will you do if you find a panda in danger.2)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。
如:If bears are in danger ,they attack people.注意: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。
第二部分课堂练习(30分钟)if 条件状语从句的时态练习一.在正确的答案下划线。
人教八上 Unit10 if条件状语从句专项讲解 课件
If we ask people to bring food, they'll just bring 4
potato chips and chocolate.
考向一 “主将从现”原则。 if引导条件状语从句时,主句是一个一般将来时 的句子,从句用一般现在时,我们称之为“主 将从现”原则。
考向二 if引导条件状语从句时,主句可以是含有must, may, can等情态动词的句子。
if引导宾语从句时,翻译为“是否”, 时态要根据句子具体情况而定。
Thanks for your listening
A. gets; misses
B. gets; will miss
C. will get; misses
D. will get; will miss
归纳总结: 1 在if引导的条件状语从句中,从句为一般现在时。
主句有三种形式:一般将来时、含有情态动词、祈使句。
2 if引导条件状语从句时,翻译为“如果”, 时态为一般现在时。
A. knew
B. will know
C. doesn’t know
D. didn’t know
2. —Celia, join us in the Super Summer Camp if it ___B____ this weekend.
—I’d love to. But nobody can know if it________ .【咸宁】【if引导状语从句】
我不知道明天他是否来学校。
(宾语从句)
★①判断从句成分(宾语/状语)
★②判断中文意思
★③时态根据句子具体情况分析
If you come to my home, I'll show you the photos.
初中英语语法——If引导的条件状语从句(讲解及练习)
条件句从句主句真实一般现在时一般将来时情态动词+动原祈使句非真实一般过去时be动词用(were)would/could+动原初中英语――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用法例句①主句为一般将来时态,if从句用一般现在时态(即主将从现)。
We will stay at home if it rains tomorrow.如果明天下雨,我将要呆在家。
②主句中含有情态动词,if从句用一般现在时态。
If you finish your homework, you can go home now.如果你做完了作业,你现在可以回家了。
③主句为祈使句,if从句用一般现在时态。
八年级英语Unit 10 语法点If 引导的条件状语从句
单元语法讲练专题语法精讲:If 引导的条件状语从句一.if引导的条件状语从句含义:条件状语从句表示主句动作发生的前提、条件、假想、推测等情况。
位置:if引导的条件状语从句可放在主句后,也可放在主句前(必须用逗号隔开)。
时态:当主句是一般将来时,从句用一般现在时表示将来。
主句从句例句主句是一般将来时从句时态应用一般现在时He will come here on time if it doesn't rain.如果不下雨,他会按时到达这儿。
主句是祈使句Please stay at home if it rains tomorrow. 如果明天下雨,请留在家里。
主句的谓语含有can,may,must等情态动词If you like,you can stay here for the weekend.你如果愿意,可以留在这里过周末。
主句的谓语是hope, wish,want等动词I want to go there if the rain stops.如果雨停了,我想去那儿。
二.if引导的条件状语从句遵循主过从过、主将从现的原则。
(1)主过从过。
If he got up earlier, he would not be late yesterday.如果昨天他早点起床,就不会迟到了。
(2)主将从现。
①If it rains tomorrow, I won't climb the hills.如果明天下雨,我就不去爬山。
②If it doesn't rain tomorrow, I will climb the hills.如果明天不下雨,我就去爬山。
(3)主祈(祈使句)从现。
Climb the hills with me if it doesn't rain tomorrow.如果明天不下雨,和我去爬山吧。
(4)主情(情态动词)从现。
If it doesn't rain tomorrow, I might climb the hills.如果明天不下雨,我可能会去爬山。
初中英语——If引导的条件状语从句(整理版)说课讲解
在句子中做条件状语的从句称为条件状语从句。
引导条件状语从句的连接词有:if ,unless,as/so long as,once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.如果没有水会怎样?2.unless引导的条件状语从句You will fail in English unless you work hard.3.as /so long as引导的条件状语从句So long as you're happy,i will be happy.4.once引导的条件状语从句Once you begin,never stop.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。
Father told me if i worked hard he would buy me a gift.if 条件状语从句的时态练习二、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.15.如果他到的晚了会发生什么事情?What _______________ if he _____________ late?16. 如果努力学习,你就会取得好成绩。
if引导的条件状语从句课件.ppt.ppt
中考真题:
(2011安徽)
1.If the rain s_to_p_s____(stop) tonight, we will go to the cinema.
(2012黑龙江) 2.I’ll buy a computer ihfavIe ______(have) enoug
money.
(2013内w蒙on古’t )get
3. 如果主句是祈使句,从句同样要用一般现在时。 Don’t go and play football if you don’t finish
your homework. Please call me if he comes next Sunday.
练一练:
1。如果她早点儿起床,就有时间在家里吃早餐 If she__g_e_ts_u_p__a little earlier, she’ll have time to eat breakfast at home. 2。如果你参加聚会,你将会过得很开心。 If you_jo_i_n_ the party ,you__w_i_ll_h_a_ve__ a great time. 3。如果明天下雨,我们将不去野餐 If it _ra_i_n_stomorrow, we _w_o_n_’t_g_o_ for a picnic. 4。如果你经常听英文歌,你将会喜欢英语 If you often _l_is_te_n_t_o_English songs, you_w_i_ll _li_ke_English.
3. If she__w_in_s____ (win) the prize ,we w__il_l_b_e__(be) happy.
4.If I _d_o_n__’t_e_a_t_ (not ,eat )so much ,I __w_i_ll__g_e_t _(get) thinner.
原创PPT八上U10语法课(If条件状语从句)
通过改错练习,加深 对if条件状语从句的 理解和运用。
翻译题训练
将中文句子翻译成英文,注意使 用if条文表达差异,提高 翻译准确性和流畅度。
分析翻译难点和易错点,总结翻 译技巧和方法。
写作题训练
根据所给话题和提示,运用if条 件状语从句写一篇短文。
注意文章结构、逻辑关系和语 言表达的准确性和得体性。
通过写作练习,提高运用if条件 状语从句的能力和写作水平。
THANKS
感谢观看
主过从过
主句用一般过去时,从句也用过 去的某种时态。例如:If I had time yesterday, I would have
gone shopping.
语态应用技巧
主动语态
表示主语是动作的执行者。在If条件状语从句中, 常用主动语态表示条件或假设。
被动语态
表示主语是动作的承受者。在某些情况下,为了 强调动作的对象或使句子更加客观,可以使用被 动语态。
If条件状语从句也可以位于主句之后,不用逗号与 02 主句隔开,表示“如果……就”。
在某些情况下,If条件状语从句还可以插入到主句 03 中间,但需要用逗号将其与主句其他部分隔开。
引导主从复合句功能
01 If条件状语从句可以引导一个主从复合句,其中主 句表示结果,从句表示条件。
02 If条件状语从句的引导功能使得句子结构更加复杂 ,能够表达更加丰富的语义关系。
02 通过使用If条件状语从句,可以使句子更加紧凑, 避免过多的简单句堆砌。
省略情况
在某些情况下,If条件状语从句可以省略if,而将条件部分放到主句前面,形成倒装 句。
当If条件状语从句中的主语与主句主语相同时,从句中的主语和be动词可以省略, 形成省略句。
八下第五单元if引导的条件状语从句讲解
If引导条件状语从句。
在含有条件状语从句的主从复合句中,当主句谓语动词以某种形式表示将来时间概念时,条件状语从句中的谓语动词通常要用一般现在时代替一般将来时。
此句中主句为用祈使句表将来,if引导的状语从句用一般现在时。
If you see him , give him this letter .如果你见到他的话,把这封信给他。
引导条件状语从句最常用的连词是if,由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。
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。
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。
如: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。
I would have arrived much earlier if I had not been caught in the traffic .如果没有堵车,我会到的早一点儿。
四. 课文知识点详解1. He lent me his CD recorder.他把他的CD机借给了我。
lend将某物借给某人(1)主语+lend+人+物I lent a friend a pen .(2)主语+lend+物+to+人I lent money to a friend .borrow 向某人借某物主语+borrow+物+from+人I borrowed a book from my teacher .2. If you want to send your recording by email , connect the recorder to your computer .如果你想通过电子邮件的方式发送你的录音,你要把录音连接到电脑上。
if引导的条件状语从句(讲义及答案)
if 引导的条件状语从句(讲义)状语用来表示行为发生的时间、地点、目的、方式、程度等,通常由副词或介词短语充当,也可由一个句子充当。
I slept at home yesterday because I had a bad cold.状语从句状语从句指句子作状语。
根据其作用可分为时间、地点、原因、条件、目的、结果、让步、方式等从句。
状语从句一般由连词(从属连词)引导。
I will go to school by bike tomorrow if it is sunny.Grammar focus—I think I’ll take the bus to the party.—If you do, you’ll be late.If you take the bus to the party, you’ll be late.—I think I’ll stay at home.—If you do, you’ll be sorry.If you stay at home, you’ll be sorry.—What will happen if they have the party today?—If they have it today, half the class won’t come.—Should we ask people to bring food?—If we ask people to bring food, they’ll just bring potato chipsand chocolate.1.if 在本单元句中意为“;”,用于引导即 if 引导的是一个完整的句子,所以一定要有主谓,成为从句,另一个句子则成为主句。
If you go there, I’ll go, too.We will go hiking if it doesn’t rain tomorrow.If Bob leaves tomorrow, I will hold a party for him tonight.2.if 引导的条件状语从句既可以放在主句前,也可放在主句后。
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初中英语――if引导得条件状语从句在if 引导得条件状语从句中,if 与条件句位置灵活,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,与主句隔开。
还要注意前后时态一致原则、引导条件状语从句得连接词主要有:if(如果)、unless(除非)或as long as(只要)等。
unless在意思上等于if、、、not。
一、条件状语从句用法1、引导条件状语从句最常用得连词就是if,由if引导得条件状语从句表示在某种条件下某事很可能发生。
如:If you ask him, he will help you、如果您请她帮忙,她会帮您得。
If you fail in the exam, you will let him down、如果您考试不及格,您会让她失望得。
另外,if从句还表示不可实现得条件或根本不可能存在得条件,也就就是一种虚拟得条件或假设,从句多用一般过去时或过去完成时。
如: If I were you, I would invite him to the party、如果我就是您,我会邀请她参加聚会。
2、unless = if、、、not、除非,若不,除非在……得时候例如:Let's go out for a walk unless you are too tired、=If you are not too tired, let's go out for a walk、Unless it rains, the game will be played、除非下雨,比赛将照常进行。
二、时态问题在条件状语从句中,要注意“主将从现”得规定,即主句用一般将来时,从句用一般现在时表示将来时。
例句:I will e to see you if I have time、我有时间,我就来瞧您。
三如果if 条件句谈论得就是重复发生与预示要发生得情景与事件,则主从句大多用一般现在时态。
if引导的条件状语从句课件
If it rains tomorrow, will watch TV at home I_____________________.
doesn’t rain tomorrow, If it _____________
I’ll play basketball ________________.
无忧PPT整理发布
Homework
. Finish
the exercises in the
workbook.
无忧PPT整理发布
GRAMMAR: If 引导条件状语从句
华陀中学: 2015.1.21
一、什么是条件状语从句?
定义:if “如果, 假如” 它引导的句子表示某事发
生所需的条件,即“在…条件下,某事才能发生”, 在句子中充当状语,因此称之为条件状语从句。 ( If引导的条件状语从句表示假如有从句的动作发 生,就会有主句动作的发生 ) If it rains tomorrow ,I will stay at home. 位置:从句可放在主句之前或之后,但是放在主句之 前须有逗号隔开 eg:如果我有足够的钱,我就去环游世界 If I have enough money, I will travel around the world =I will travel around the world if I have enough money
无忧PPT整理发布
2.If 从句 (一般现在时), 主句 ( 一般现在时 )
• 表示科学常识、事实、 经常性的动作或倾向 自动会发生的事 • 1. If water is heated, it turns to steam. • 2. If people don’t get enough sleep, their thinking ability is reduced . • 3. If I need a haircut, I usually go to the barber’s near where I live. • 4. People often don’t go out 无忧 onPPT Sundays if it 整理发布 rains.
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在句子中做条件状语的从句称为条件状语从句。
引导条件状语从句的连接词有:if ,unless,as/so long as,once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.如果没有水会怎样?2.unless引导的条件状语从句You will fail in English unless you work hard.3.as /so long as引导的条件状语从句So long as you're happy,i will be happy.4.once引导的条件状语从句Once you begin,never stop.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。
Father told me if i worked hard he would buy me a gift.if 条件状语从句的时态练习二、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.15.如果他到的晚了会发生什么事情?What _______________ if he _____________ late?16. 如果努力学习,你就会取得好成绩。
If you__________ _________, you ___________ good _____________.17. 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.18. 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.19. 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.20. 如果她睡过头了,就会旅游迟到的。
She;__________________________ the trip if she ___________________.21. 如果他有空,他会帮助你的。
If he _________________, he _________________ you.22. 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.23. 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. Ⅰ.单项选择(15分)1.If you _____ to the party, you’ll have a great time. A. will go B. went C. go D. going2. It will be a long time ____ Peter _____ his work.A. since, has finishedB. after, finishesC. when, will finishD. before, finishes.3. What will father _____ us from Japan? A. take B. bring C. carry D. make4. Weifang is famous ______ kites. A. for B. to C. on D. with5.I ____ her the answer if she ____me.A. can tell, will askB. will tell, will askC. would tell, askD. will tell, asks6. – What are you going to do tomorrow?--We’ll go to the library tomorrow if it ___.A. isn’t rainB. rainC. won’t rainD. does n’t rain7.—Do you know when he will come back tomorrow?--Sorry, I don’t know. When he ____ back, I’ll tell you.A. comesB. will comeC. comeD. may come8. What will you do if you _____ to the old folk’s home visit?A. goB. wentC.goingD. will go9. If I eat ____ food, I’ll be very fat.A. too manyB. many tooC. too muchD. much too10. I’ll give the book to him if he ___ here next Sunday.A. will comeB. comesC. is comingD. came11. There ____an English film in our school tomorrow.A. is going to haveB. will haveC. is going to beD. has12. Could you tell us where ____?A. will the next Olympic Games heldB. the next Olympic Games will be heldC. would the next Olympic Games be heldD. the next Olympic Games would be held13. When my mother returned last night, I ____ a book.A. readB. am readingC. was readingD. am going to read14.What ____ you ____ when it began to rain?A. do, doB. were, doingC. are, doingD. did, do15. I’ll wake you up when he ____back.A. willB. is going to comeC. comesD. come。