初中英语If引导的条件状语从句演示教学
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Uni10 if 引导条件状语从句 课件 人教版英语八年级上册
4.Hurry up if you _d_o_n_’t__w_a_n_t(not want) to be late.
Look and say
you
get up late
If you get up late, you’ll be late for school.
late for school
I我
If I have a lot of money, I will buy a big house.
Translation:
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.
Read and summarize 读下列例句，总结if的用法
If you study hard, you’ll pass the exam. =Study hard, and you’ll pass the exam.
If you don’t hurry up, you’ll be late. = Hurry up, or you will be late.
Please call me if he comes next Sunday.
用法三：主句是祈使句，从句 也要用一般现在时。 （主祈从现）
Exercises： 1.I _w_il_l _s_t_a_y_(stay ）at home if Lucy _co_m__e_s （come） tomorrow.
If you want to lose weight, you must eat less bread.
Look and say
you
get up late
If you get up late, you’ll be late for school.
late for school
I我
If I have a lot of money, I will buy a big house.
Translation:
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.
Read and summarize 读下列例句，总结if的用法
If you study hard, you’ll pass the exam. =Study hard, and you’ll pass the exam.
If you don’t hurry up, you’ll be late. = Hurry up, or you will be late.
Please call me if he comes next Sunday.
用法三：主句是祈使句，从句 也要用一般现在时。 （主祈从现）
Exercises： 1.I _w_il_l _s_t_a_y_(stay ）at home if Lucy _co_m__e_s （come） tomorrow.
If you want to lose weight, you must eat less bread.
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。
if引导的条件状语从句PPT教学课件
无忧PPT整理发布
20
Homework
. Finish
the exercises in the
workbook.
无忧PPT整理发布
21
GRAMMAR： If 引导条件状语从句
1
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
练一练：
1。如果她早点儿起床，就有时间在家里吃早餐 gets____a up If she____ 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。 join the party ,you_____ will have If you____ ____ a great time. 3。如果明天下雨，我们将不去野餐 rains won’t go for a picnic. If it ____tomorrow, we ___ ____ 4。如果你经常听英文歌，你将会喜欢英语 If you often ____ ___English songs, you___ listen to will ___English. like
Unit10if条件状语从句课件人教版英语八年级上册
用法2：如果主句含有must, may, can 等情态动词，从 句也要用一般现在时。
She is going to walk to school.
Shes to school, she m__u_s_t_ _b_e_late.
用法3：如果主句是祈使句，从句同样要用一般现在时。
It will be sunny tomorrow.
Let’s have a trip tomorrow.
If it __is__ sunny tomorrow, Let’s __h_a_v_e_ a trip.
If引导条件状语从句，遵循：
主将从现 主祈从现 主情从现
一、用括号内所给单词的正确形式填空。 have
___________________________.
If it is sunny this weekend, what won’t you do ?
If it is sunny this weekend, I ___w_o_n_’_t_s_t_a_y__a_t_h_o__m_e__.
If it is sunny this weekend, I _w__o_n_’_t _w_a__tc_h__t_e_le__v_is_i_o_n_.
If I have time, I’ll go to see you. I’ll go to see you if I have time.
从主有逗 主从无逗
最常用的引导词有:
• if 如果 • unless (= if not) 除非 • as long as 只要
1. If you want to know, I can tell you.
英语中考语法复习
If条件状语从句
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。
if 引导的真实性条件状语从句(课堂PPT)
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三.if 引导的条件状语从句中主从句的时态：
1. 若主句是一般将来时，if 引导的从句用一般现在时。 it rains tomorrow,I’ll stay at home. 的原则。
2. 如果主句是祈使句或含情态动词can,may,must，
等时，从句也用一般 现在时。 遵守“主现从现”
3
For example:
If you have any questions to ask ,please come to my office.
练习 Ⅰ.单项选择
Exercise（: ）1.If you _____ to the party, you’ll have a
great time.
A. will go B. went C. go D. going
3.除非你更加小心点，否则你就会出事故。 Unless you_______more care, you_______ an accident.
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五.条件状语从句和主句还有一个共同的伙伴，有时
它可以代替从句和主句，它就是‘‘祈使句+and/or+简单 句”。 其中and表示句意顺承；or则表示转折，意思为“否则”。
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3. If you go to bed early, you won’t feel tired in the morning. _____ _____ _____ early, _____ you won’t feel tired in the morning.
4. If you don’t work hard, your teacher will probably be angry. ______ _____, _____ your teacher will probably be angry.
三.if 引导的条件状语从句中主从句的时态：
1. 若主句是一般将来时，if 引导的从句用一般现在时。 it rains tomorrow,I’ll stay at home. 的原则。
2. 如果主句是祈使句或含情态动词can,may,must，
等时，从句也用一般 现在时。 遵守“主现从现”
3
For example:
If you have any questions to ask ,please come to my office.
练习 Ⅰ.单项选择
Exercise（: ）1.If you _____ to the party, you’ll have a
great time.
A. will go B. went C. go D. going
3.除非你更加小心点，否则你就会出事故。 Unless you_______more care, you_______ an accident.
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五.条件状语从句和主句还有一个共同的伙伴，有时
它可以代替从句和主句，它就是‘‘祈使句+and/or+简单 句”。 其中and表示句意顺承；or则表示转折，意思为“否则”。
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3. If you go to bed early, you won’t feel tired in the morning. _____ _____ _____ early, _____ you won’t feel tired in the morning.
4. If you don’t work hard, your teacher will probably be angry. ______ _____, _____ your teacher will probably be angry.
人教版英语八年级上册Unit10Grammarif引导的条件状语从句精品语法ppt课件
25
What are your problems?
What should you do to
say no to your bad habits and embrace（拥抱） 2019 with
a new look?
你应该做些什么来向坏习惯告别，以一个 全新的面貌去拥抱2019？
26
Write a letter to Mr. Yu.
One
Three
20
21
22
23
（三）Your new year resolutions
Mr. Yu wants to make our class better and better,but now I have many problems:
24
1.Some students are always late for class; 2.Some students can't finish the homework in
If I feel happy,If you feel I will sing. happy,
you will sing. If I am happy, If you are happy, I will dance. you will dance.
7
2.引导词：if、unless if…not=unless
time; 3.Some students don't listen carefully in class; 4.Some students aren't friendly to teachers
and classmates; 5.Some students aren't quiet; 6.Some students aren't good at math; …………
What are your problems?
What should you do to
say no to your bad habits and embrace（拥抱） 2019 with
a new look?
你应该做些什么来向坏习惯告别，以一个 全新的面貌去拥抱2019？
26
Write a letter to Mr. Yu.
One
Three
20
21
22
23
（三）Your new year resolutions
Mr. Yu wants to make our class better and better,but now I have many problems:
24
1.Some students are always late for class; 2.Some students can't finish the homework in
If I feel happy,If you feel I will sing. happy,
you will sing. If I am happy, If you are happy, I will dance. you will dance.
7
2.引导词：if、unless if…not=unless
time; 3.Some students don't listen carefully in class; 4.Some students aren't friendly to teachers
and classmates; 5.Some students aren't quiet; 6.Some students aren't good at math; …………
if 引导的条件状语从句(课堂PPT)
三、教学重点、难点：
（1）重点句型：—I think I with
Karen and Ann.
—If you do, you’ll have a great time. （2）正确使用if 引导的条件状语从句
4
教学设计一 If I do…, They will do…
questions.At home Wang Tao has to do homework every
day. If he plays a lot of computer games and can’t finish homework, his parents will be very angry.
所需语言结构：
I want to be a teacher. I think if I study hard , read a lot of books and know much about kids, my dream will come true.
I want to have a lot of money. If I always work hard,stay healthy and have many helpful friends, I am sure it will come true.
6
教学设计一
If I do…, They will do…*
2.把你的信息和同学的信息列举出来、进行比较。
所需语言结构：I have to get home early after school. If
I return late, mum will ask me a lot of troublesome
3
二、教学目标：
1 知识目标：正确运用if 引导的条件状语从句 2 能力目标：能用if 引导的条件状语从句作出假设，用will谈论结 果。 3 情感目标： 本课时围绕party展开话题，贴近学生生活，符合他们热爱休闲 的心理，可以提高他们学习英语的兴趣，积极参与英语实践活动。 教学策略和方法： 通过pair work和groupwork，鼓励学生对if引出的结果进行推测。
（1）重点句型：—I think I with
Karen and Ann.
—If you do, you’ll have a great time. （2）正确使用if 引导的条件状语从句
4
教学设计一 If I do…, They will do…
questions.At home Wang Tao has to do homework every
day. If he plays a lot of computer games and can’t finish homework, his parents will be very angry.
所需语言结构：
I want to be a teacher. I think if I study hard , read a lot of books and know much about kids, my dream will come true.
I want to have a lot of money. If I always work hard,stay healthy and have many helpful friends, I am sure it will come true.
6
教学设计一
If I do…, They will do…*
2.把你的信息和同学的信息列举出来、进行比较。
所需语言结构：I have to get home early after school. If
I return late, mum will ask me a lot of troublesome
3
二、教学目标：
1 知识目标：正确运用if 引导的条件状语从句 2 能力目标：能用if 引导的条件状语从句作出假设，用will谈论结 果。 3 情感目标： 本课时围绕party展开话题，贴近学生生活，符合他们热爱休闲 的心理，可以提高他们学习英语的兴趣，积极参与英语实践活动。 教学策略和方法： 通过pair work和groupwork，鼓励学生对if引出的结果进行推测。
八年级英语if 引导的条件状语从句优秀课件
主要讲一下if引 导的条件状语从句 的几种情况。
主将从现：指if条件状语从句中，从句用
一般现在时，主句用一般将来时(在这里尤 其要注意表示将来是指will或者shall，不能 用be going to) 。
• If it doesn’t rain tomorrow, we’ll go to the Great Wall.如果明天不下雨, 我们就会 去长城。
主
〔一般现在时〕
将
〔一般将来时〕
从
Hale Waihona Puke 现You’ll be late if you take the bus to the party.
〔一般将来时〕
〔一般现在时〕
所给词的适当形式填空 1. If it____(be) fine tomorrow, we’ll go for an outing. 2. If he ___(come) to see me, I’ll be very happy. 3. If he ____ (study) hard, he’ll pass the exam. 4. If she _____〔live〕with us, we’ll take good care of her.
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，不用 逗号隔开。假设 if 条件句放句首，从句 后面要加逗号，和主句隔开。还要注意 前后时态一致原那么。
Look at the blackboard if you can’t remember the words.
If you can’t remember the words, look at the blackboard.
• You may stay to dinner if you like. 你要是愿意可以留下来吃饭。
if引导的条件状语从句ppt
8.Please wake me up if he______(come)back.
9.Hurry up！Or you ______(be)late again.
10.If you don’t be quick,you -
-
If 引导的条件状语从句
If I go there，I'll take her some flowers. We'll stay at home if it rains tomorrow. Please call me if he’s at home. If you work harder,you’ll pass the exam.
If she doesn’t come,I’ll go shopping alone. =Unless she comes,I’ll go shopping alone.
-
If 引导的条件状语从句
与 if条件状语从句 祈使句,and/or＋一般将来时的句子转化
If you get up early,you’ll get there on time. =Get up early,and you’ll get there on time. =Get up early,or you won’t get there on time.
If 引导的条件状语从句
If 引导的条件状语从句遵循主过从过、主将 从现的原则。 主将从现（主情从现、主祈从现）
If it rains tomorrow,I won’t climb the hills. If it doesn’t rain tomorrow,I will go to the countryside with my friends.-If 引导的条件状语从句
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初中英语――if引导的条件状语从句在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.引导条件状语从句的连接词主要有：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。
2、unless = if...not.除非,若不,除非在……的时候例如：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”的规定，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 come to see you if I have time.我有时间，我就来看你。
三如果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.误区提醒if 既可以引导条件状语从句，表示“如果”，也可以引导宾语从句，表达“是否”。
辨别它在这两种从句中的时态是我们经常容易出错的地方。
另外，if 和unless的用法也需注意。
典型例题：----I wonder if your wife to the party.----If your wife _________, so will mine。
.A. will go，goB. will go, goesC.goes, will goD. will go, will go解析：第一句中if表示“是否”，引导宾语从句，用将来时will go；第二句“如果你的妻子去，我的妻子也去”，if引导条件状语从句，用一般现在时表示将来时。
your wife，单三人称主语，所以用goes 。
总结IF引导的一、表示将来可能发生的：(1) If sb does sth, sb will do sth= sb will do sth if sb does sth主句一般将来时从句一般现在时(2)主句为祈使句或情态动词形式If sb does sth, please do sthIf sb does sth, sb may(情态动词) do sth二、表必然发生的If sb does sth, sb/sth does sth= sb/sth do sth if sb does sth主句一般现在时，从句一般现在时（相当于when引导的从句）Unless引导的sb will do sth unless sb does sthif sb does not do sth练习1.He ______ (fail) in the exam if he ______ (not study) hard.2.Unless you ______ (leave) now, you ______(be) late.3.We ______ (have) a barbecue unless it ______ (rain) .4.Hurry up, or you will miss the bus.（同义句转换）___ you don’t hurry up, you ____ catch the early bus.5.Study hard, or you’ll miss fall behind.（同义句转换）______ you study hard, you______ fall behind.6.If you don’t put on your scarf, you’ll catch cold.（同义句转换）Put on your scarf, _____ you’ll catch cold.7.I don’t know if it_______ tomorrow. ）(表是否，用将来时态)If it ____ ,I won’t go shopping. (rain)（表如果，用现在时态）8.I want to know if he _________(come) tomorrow, if he _______(come),I __________(give) the massage to him.9. Please let us know if he ________(arrive) tomorrow.请告诉我们他明天是否会来Please let us know if he _________ (arrive) tomorrow.如果他明天来的话请告诉我们10.I’m sure if he _____(go) to the party, he________ (have) a great time.11.If the rain _______(stop) tonight, we will go to the cinema.12.I’ll buy a computer if I ______(have) enough money.13.You _________(not get) nervous if you _____(do ) enough exercise.14.If she ____ (be) kind to me , I __________(not argue) with her.15.If you _____(pay) more attention to that, he _________ (not get) injured.16.Mr Li will be mad if we _______(break) the rules.17. If it _____ (be) cloudy, they _______(not go) there by air.18.Shall I say “Hello” when the foreigner ______(come) into the classroom?19.He’ll get better grades if he _________ (study )hard.20. If you work really hard, you _______ (be) famous and rich.if 条件状语从句的时态练习一．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 a UFO (will land/land/lands) in front of me, I (will go/go/goes) in to look for the alien.4. If he (will have/have/has) money, he (will bulid/build/builds) a science lab.5.Don’t wait for me if I (am/ will be) late.6.They (won’t/don’t) go to the beach if it (will rain/rain /rains).7. I (will call/ call) you if he (will stay/stay /stays) at home.8. (Will / Do/ Does) he visit the museum if he (won’t / don’t/ doesn’t) get tired?9. Where (will/ do/does) they live if they (will miss/ miss/ misses) the bus?二、用所给词的适当形式填空1.If you ________(feel) tired, you _______________ (have) to have a rest.3. If there __________(be) fewer trees, there _______________( be) more pollution.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.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. doesn’t rain7.—Do you know when he will come back tomorrow?--Sorry, I don’t know. When he ____ back, I’ll t ell 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. came1---5 CDBAD 6---10 DAACB 11---15。