if条件状语从句之主将从现练习题(方案).ppt
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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
《if条件状语从句》课件
if条件状语从句的基本用法
1 表达假设
if条件状语从句常用于表达假设，描述可能发生的情况。
2 引导结果
if条件状语从句还可以引导结果，说明由于某种条件发生，造成了一种结果。
if条件状语从句和现在时态的连用
一般现在时
if条件状语从句与一般现在时连用，表示一种普 遍真实的情况。
现在进行时
if条件状语从句与现在进行时连用，表示正在发 生的动作或状态。
3
练习三
根据上下文补全句子：I will go to the party if I ______ an invitation.
if条件状语从句中的注意事项
1 逗号的使用
2 否定形式
当if条件状语从句位于主句之前时，两者之间 可以用逗号隔开。
if条件状语从句中使用否定形式时，主句的谓 语动词要变为肯定形式。
if条件状语从句的常见练习
1
练习一
完成以下句子：如果我明天有时间，我______。
2
练习二ቤተ መጻሕፍቲ ባይዱ
选择正确的if条件状语从句：______ it rains, we will stay at home.
《if条件状语从句》PPT 课件
欢迎来到《if条件状语从句》PPT课件！在本课程中，我们将探讨if条件状语 从句的定义、结构以及各种用法，让您轻松掌握这一重要语法知识点。
if条件状语从句的定义和结构
if条件状语从句是指描述某种情况下，另一种情况会发生的句子结构。它由一 个if引导，并包含一个主句和一个从句。
if条件状语从句和过去时态的连用
一般过去时
if条件状语从句与一般过去时连用，表示过去某个时 间或条件下的情况。
过去进行时
if引导的条件状语从句练习题
if引导的条件状语从句引导条件状语从句最常用的连词是if，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。
如：If he runs, he’ll get there in time. 如果他用跑的，他就会及时赶到那儿。
If it is sunny tomorrow,we will have a sports meeting.如果明天天气放晴,我们就会举办运动会。
If it is summer now ,we can go swimming everyday.如果现在时夏天，我们就可以每天去游泳了。
If it stops snowing，we can go out. 如果雪停了，我们就可以出去。
If we don't do something now, they may all disappear forever!如果我们现在不做什么，他们可能永远消失!3．if从句用一般现在时，主句用must/shouldIf 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。
If you heat ice it turns to water. 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If条件状从句练习( )1.If you _____ to the party, you’ll have a great timeA. will goB. wentC. goD. going( )2.–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 rain( )3. What will you do if you _____ to London?A. goB. wentC. goingD. will go( )4. If I eat too much food, I____ very fat.A. wasB. will beC. beD. am( )5. I’ll give the book to him if he ___ here next Sunday.A. will comeB. comesC. is comingD. came( )6. I ____ her the answer if she ____me.A. can tell, will askB. will tell, will askC. would tell, askD. will tell, asks( )7. We’ll go to the farm if it ____ tomorrow.A. won’t rainB. will be rainyC. doesn’t rainD. 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 D.has,rains( )9. Your teacher will be unhappy if you _______ to school late.A. comeB. will comeC. are comingD. came( )10. If he _______ , please let me know.A. comesB. will comeC. comingD. came参考答案：1-5 CDABB 6-10 DCCAA二、用所给词的适当形式填空。
if when 主将从现 优质课件
外，在if引导的从句中还可以使用 “would+动词原形”的结构，这种用法还 是表示“意愿”，常表示客气的请求
• 这时主句既可以用will/shall+动词原形，以 可以用“would（will）/should（shall） /could（can）/might（may）+动词原形”
• 如：if you would try Italian food,you would like it.
如：If he goes to England,he will have to learn Englisn.
If it is fine tomorrow, we will go outing
由if引导从句
这里if所引导的是真实条件句【即所假设的条件有可能成为现实， 表达所假设的条件实现时会出现的状况或者会采取的行为】
• You’ll have a great time.
• If you go to the park tomorrow ，you’ll have a great time。
时间状语从句 条件状语从句
什么是从句？
• 在复合句，修饰祖宗的动词、 形容词或副词的从句叫做状 语从句。从句根据它表达的 意思可分为时间、原因、条 件、比较、结果等类型
时间状语从句和条件状语从句 中“主将从现”的搭配
• 主句：一般将来时 • 从句：一般现在时
条件状语从句
• 它引导的从句使用一般现在时表将来的意 思，这是主句和从句在意义上仍保持一致。
• 当然这种“will+动词原形”的if从句在一些 场合是不能随便用的。
比如我们可以说成：if he gets my letter in time,he’ll be able to change his plans
• 这时主句既可以用will/shall+动词原形，以 可以用“would（will）/should（shall） /could（can）/might（may）+动词原形”
• 如：if you would try Italian food,you would like it.
如：If he goes to England,he will have to learn Englisn.
If it is fine tomorrow, we will go outing
由if引导从句
这里if所引导的是真实条件句【即所假设的条件有可能成为现实， 表达所假设的条件实现时会出现的状况或者会采取的行为】
• You’ll have a great time.
• If you go to the park tomorrow ，you’ll have a great time。
时间状语从句 条件状语从句
什么是从句？
• 在复合句，修饰祖宗的动词、 形容词或副词的从句叫做状 语从句。从句根据它表达的 意思可分为时间、原因、条 件、比较、结果等类型
时间状语从句和条件状语从句 中“主将从现”的搭配
• 主句：一般将来时 • 从句：一般现在时
条件状语从句
• 它引导的从句使用一般现在时表将来的意 思，这是主句和从句在意义上仍保持一致。
• 当然这种“will+动词原形”的if从句在一些 场合是不能随便用的。
比如我们可以说成：if he gets my letter in time,he’ll be able to change his plans
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。
主将从现的习题PowerPoint 演示文稿
A. will come B. comes C. shall come D. should come 7. As soon as he _C__, I’ll ask him to write to you. A. will come B. came C. comes D. is coming 8. If he _B___harder, he will catch up with us soon. A. study B. studies C. will study D. studied
13.James with the Greens _D___the paபைடு நூலகம்k if it _____ tomorrow.
A. are going to; isn’t rainy B. are going to; doesn’t rain C. is going to won’t rain D. is going to; isn’t rainy
14．I’ll go there if it __C____tomorrow. A.won’t rain B. not rain C. doesn’t rain
6
15．We’ll go to the park if it__B__ rain tomorrow. A. don’t B. doesn’t C. won’t 16．We are not sure if it__D__ tomorrow. If it ____ , our sports meeting will be put off. A. rains; rains B. rains; will rain C. will rain; will rain D. will rain; rains
7
17．If my uncle_C___next weekend, we____with him.
13.James with the Greens _D___the paபைடு நூலகம்k if it _____ tomorrow.
A. are going to; isn’t rainy B. are going to; doesn’t rain C. is going to won’t rain D. is going to; isn’t rainy
14．I’ll go there if it __C____tomorrow. A.won’t rain B. not rain C. doesn’t rain
6
15．We’ll go to the park if it__B__ rain tomorrow. A. don’t B. doesn’t C. won’t 16．We are not sure if it__D__ tomorrow. If it ____ , our sports meeting will be put off. A. rains; rains B. rains; will rain C. will rain; will rain D. will rain; rains
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17．If my uncle_C___next weekend, we____with him.
If 引导的条件状语从句(共17张PPT)
思考
I don’t know if he _w_il_l _co_m_e_(come)to our party tonight. If he _c_om__es_(come), I will tell you.
结论: 当if作“__如__果__”_讲时，用“主将从现”； 当if作“__是__否__”讲时，根据句意和时态选择合适的时态。
get tired? 7. Where (_w__il_l_/ do/does) they live if they (will miss/ _m_i_s_s_/ misses) the
bus? 8.If you_(_fe__e_l / will feel) hungry, you (s_h__o_u_l_d / must) eat something.
if条件状语从句的意义：表示在某条件下，某事很可能 发生。
语法规则： 1.条件句,放在前,逗号要放句中间； 2.主将从现
If you don’t stay at home, what will you do ? where will you go?
If you don’t stay at home, I __w_i_l_l _g_o_ shopping.
If hazy weather comes,
we will stay at home. /don't go out. /we should drink more water. ...
If 引导的条件状语从句
Learning objectives（学习目标）:
1.Master the sstrtruucctuturreeaanndduussee of conditional
TIfhahta’szynowt eeantohuegrhc.omes,
if条件状语从句-课件(共31张PPT)
hard-working
get good grades
If she is hard-working,
she will get good grades.
Look and say
sunny this Sunday
go fishing .
If it is sunny this Sunday, I’ll go fishing .
• 读下列例句，试着自己总结if 的用法：
• 1. If you heat metal, it melts. • 如果把金属加热，它就会融化。 • 2.Water turns into ice if you cool it. • 如果你冷却水，它就会变成冰。 • 3.If you stand in the rain, you get wet.
A if; Whether B whether; Whether
C if; That D if ; If
3. Please tell her my telephone number if she _____ (want) to know.
wants
4. Will you come and stay with us for a while if you
“如果”。
If 引导的宾语从句可以用将来时，意思为“是
否”。
如果
Betty will visit the History Museum if it __d_o_e_s_n_’_t_r_ai_n_ (rain) tomorrow.
Ben wants to know if it____w_il_l b_e____ (be) fine tomorrow.
P105 B
• William has five problems • Give him some advice from column A and B
get good grades
If she is hard-working,
she will get good grades.
Look and say
sunny this Sunday
go fishing .
If it is sunny this Sunday, I’ll go fishing .
• 读下列例句，试着自己总结if 的用法：
• 1. If you heat metal, it melts. • 如果把金属加热，它就会融化。 • 2.Water turns into ice if you cool it. • 如果你冷却水，它就会变成冰。 • 3.If you stand in the rain, you get wet.
A if; Whether B whether; Whether
C if; That D if ; If
3. Please tell her my telephone number if she _____ (want) to know.
wants
4. Will you come and stay with us for a while if you
“如果”。
If 引导的宾语从句可以用将来时，意思为“是
否”。
如果
Betty will visit the History Museum if it __d_o_e_s_n_’_t_r_ai_n_ (rain) tomorrow.
Ben wants to know if it____w_il_l b_e____ (be) fine tomorrow.
P105 B
• William has five problems • Give him some advice from column A and B
人教八上unit 10 语法if引导的条件状语从句讲练结合(共27张PPT)
A. will be; live
B. will be; will live
C. is; will live
D. is; live
4. I’m waiting for my friend. _____, I'll go shopping alone. A. If she comes B. If she won't come C. If she doesn't come
2. If you ____ the homework, you can go home. A. finish B. will finish C. can finish
主祈从现： 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.
B. If C. Unless
D. Because
02
主将从现
主将从现：
如果主句是一般将来时，if从句则用一般现在时。 If it rains , I will stay at home. My sister will be very happy if our uncle comes next week.
A. Until
B. If C. Unless
D. Because
2. I’ll give the book to him if he ___ here next Sunday. A. will come B. comes C. is coming D. came
3. Our enviroment _____ better if all of us ____ a green life.
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C. is going to be D. has
9. I’ll wake you up if he ____back.
A. will come
B. is going to come
C. comes
D. come
4
Fill in the blanks
1.If you _____(feel) tired, you _____ (have) to have a rest.
9.I _________(go) to the beach if it ________ ( not rain) this week.
6
Fill in the blanks
10. ______they ______( have) a match if the P.E. teacher _______(be) busy?
1
Choose the best answer
1.If you _____ to the party, 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
4.—Do you know when he will come back tomorrow? —Sorry, I don’t know. If he ____ back, I’ll tell you. A. comes B. will come C. come D. may come
5. What will you do if you _____ to the old
5
Fill in the blanks
5. Peter _______( send) me a beautiful gift(礼 物） if he _______(go) travelling. 6. If Mr Green _______(say) I am hard- working my parents ______( feel) glad.
11.He ____(write) a letter to his parents if he ____(get) his report card this week.
12. Lana ________( buy) a new dress if the old one ________(be) out of style.
13.The twins ____(fight) if they____(argue). 14. I ______(have) a bake sale if I_____ (need)
money for education.
7
Fill in the blanks
1. 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
7. I’ll give the book to him if he ___ here next
Sunday.
A.will come
B. comes
C. is coming
D. came
8. There ____an English film in our school
tomorrow.
A.is going to have B. will have
folk’s home visit?
A. go B. went C. going D. will go
6. If I eat ____ food, I’ll be very fat.
A. too many
B. many too
C. too much
D. much too
3
Choose the best answer
7. If she ____________(get) up late, she _____________ ( not catch) the early bus. 8. Peter _____(major) in English if he ____(pass) the exams in Peking University.
2. Where ______ he _______(see) the film if he _______(have) time? 3. If there ________(be) fewer trees, there _______( be) more pollution.
4. If Marcia __________(live) alone, she _______( keep) a pet parrot.
2. 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
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9
谢
精选文档尽在此间
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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
2
Choose the best answer