if 引导的真实性条件状语从句pptppt
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if真实条件句ppt
if引导的真实条件句
If you want to watch this film, I will buy two tickets.
If I buy two tickets, we can go to the cinema.
If we are watching the film, please keep quite.
从句谓语中有 be
方法一:
主从句主语相同,if从句中有 be,则if从句中主语、
谓语可省略。
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Have a try
1.If you are studying English , you must pay attention.
2.If two rivals meet , the strongminded one will win.
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Have a try
1.除非你确立了目标 ,否则你就会失去方向。 Unless you set goals, you will lose your
way. 2. 如果你不快点,你就见不到Eason。 Unless you hurry up, you won’t see Eason.
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主谓语省略
If you have finished dinner, I’ll ask the waiter for the bill.
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主将从现
主句将来时 从句现在时
一般将来时 祈使句 含情态动词 一般现在时 现在进行时 现在完成时
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• 如果你拉猫的尾巴,它就会抓(scratch)你。 If you pull the cat’s tail, it will scratch you. • 如果你想减肥,你应该少吃糖。 If you want to lose weight, you must eat
If you want to watch this film, I will buy two tickets.
If I buy two tickets, we can go to the cinema.
If we are watching the film, please keep quite.
从句谓语中有 be
方法一:
主从句主语相同,if从句中有 be,则if从句中主语、
谓语可省略。
-
Have a try
1.If you are studying English , you must pay attention.
2.If two rivals meet , the strongminded one will win.
-
Have a try
1.除非你确立了目标 ,否则你就会失去方向。 Unless you set goals, you will lose your
way. 2. 如果你不快点,你就见不到Eason。 Unless you hurry up, you won’t see Eason.
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主谓语省略
If you have finished dinner, I’ll ask the waiter for the bill.
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主将从现
主句将来时 从句现在时
一般将来时 祈使句 含情态动词 一般现在时 现在进行时 现在完成时
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• 如果你拉猫的尾巴,它就会抓(scratch)你。 If you pull the cat’s tail, it will scratch you. • 如果你想减肥,你应该少吃糖。 If you want to lose weight, you must eat
初中英语:If引导的条件状语从句ppt课件
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。 →主句谓语中也可以含有情态动词,
如:must,can,could,should等
: 例句 如果交通指示灯是红的,你必须停下来等一等。
eg:If the traffic lights are red,you must stop and wait.
3
If it rains tomorrow, I_w_i_l_l _w_a_t_c_h__T_V__a_t_h__o_m__e. I won’t__p_la__y_b_a__s_k_e_t_b_a_ll_.
If it _d_o_e_s__n_’t__ra_i_n__ tomorrow,
_h_e_’_ll_p_la_y__b_a_s_k_e_tb__a.ll
最新版整理ppt
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Look and say
I will_e_a_t_s_o_m__e__fo_o_d__
if I’m hungry.
I will__h_a_v_e_a__r_e_s_t __
if I’m tired.
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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
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I won’t go to the party_u__n__less I am invited.
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→主句谓语中也可以用had better(not)do,提建议 例句:如果你想减肥,你最好锻炼。
eg:If you want to lose weight,you had better take some
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exercise.
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。 →主句谓语中也可以含有情态动词,
如:must,can,could,should等
: 例句 如果交通指示灯是红的,你必须停下来等一等。
eg:If the traffic lights are red,you must stop and wait.
3
If it rains tomorrow, I_w_i_l_l _w_a_t_c_h__T_V__a_t_h__o_m__e. I won’t__p_la__y_b_a__s_k_e_t_b_a_ll_.
If it _d_o_e_s__n_’t__ra_i_n__ tomorrow,
_h_e_’_ll_p_la_y__b_a_s_k_e_tb__a.ll
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Look and say
I will_e_a_t_s_o_m__e__fo_o_d__
if I’m hungry.
I will__h_a_v_e_a__r_e_s_t __
if I’m tired.
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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
最新版整理ppt
I won’t go to the party_u__n__less I am invited.
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→主句谓语中也可以用had better(not)do,提建议 例句:如果你想减肥,你最好锻炼。
eg:If you want to lose weight,you had better take some
最新版整理ppt
14
exercise.
人教八上unit10 if引导的条件状语从句(共14张PPT)
知识点巩固
If you exercise every day, you_____ heathy.
A. will
B. can keep
C. can
D.will can keep
课程小结
if引导的条件状语从句
主句 一般将来时 有情态动词
祈使句
if从句 一般现在时 一般现在时 一般现在时
时态规律 主将从现 主情从现 主祈从现
主句在前,主从句中间不__需__要__逗号隔开;如果 从句在前,主从句之间需要用__逗__号___隔开。
知识点巩固
I__w__il_l_f_ly___(fly) to Australia if there is a holiday this summer.
知识点巩固
If you miss your parents, just_b_u_y__(buy) a ticket and fly back.
if引导的条件状语 从句的用法
课程目标
掌握if引导的条件 状语从句的用法
知识点导入
If she has free time,she will help her mum do housework.
知识点导入
If my father is free, he will go camping with me.
知识点导入
If it doesn’t rain this weekend, we will have a picnic.
知识点小结
If she has free time, she will help her mum do
housework.
If my father is free, he will go camping with me.
if引导的条件状语从句PPT课件
• ② If there is no water, fish can‟t live.
→ Fish can‟t live without water. 离开水,
鱼不能生存。
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1. if从句用一般现在时,主句用一般将来时 If he runs, he’ll get there in time. 如果他用跑的,他就 会及时赶到那儿。 The cat will scratch you if you pull her tail. 如果你拉猫 的尾巴,它就会抓你。
• 结果状语从句 • 条件状语从句 • 目的状语从句 • 比较状语从句
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If 引导的条件状语从句
Hale Waihona Puke • 定义:If “如果,假如” 它引导的句子表示 某事发生所需要的条件,即“在…条件下, 某时可能发生”,在句子中充当状语,因此 称之为条件状语从句
• 位置:从句可放在主句之前或之后,放在 主句之前必须有逗号隔开。
• [解码句子结构] • if 引导的条件状语从句位置灵活,可直接放在主句后面,也可以放在句
首。放在句首时,从句后面要用逗号和主句隔开。如:
• I’ll go to see you if I have time. 如果有时间,我就去看你。 • If it rains tomorrow, we’ll stay at home. 如果明天下雨,我们就呆在家里。 • [解码时态呼应] • 在复合句中:⑴ 当主句是一般现在时或是一般将来时时;(2)当主句是
Eg: If I have enough money, I will travel around the world.= I will travel around the world if I have enough money.
if真实条件句PPT课件
方法二:
if从句中主语是it ,谓语中有 be,则if从句中主语、谓 语可省略(it be 省略)。
.
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Have a try
1.回答这些问题,如果可能的话不要参考书本。
Answer these questions ,if ( it is ) possible
without referring to the books.
If (it is) necessary, he will turn to police for help.
If it is possible, he will call the police. If (it is) possible, he will call the police.
.
9
If (it is) necessary , I’ll explain to you again.
if引导的真实条件句
If you want to watch this film, I will buy two tickets.
If I buy two tickets, we can go to the cinema.
If we are watching the film, please keep quite.
less candy.
.
3
Lቤተ መጻሕፍቲ ባይዱcture Twelve
Grammar
if 引导真实条件句中
主谓语省略
.
4
If he is in trouble, he will turn to police for help.
If in trouble, he will turn to police for help.
《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ppt课件
Please call me if you go shopping next Sunday.
完整最新ppt
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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.
9.Hurry up!Or you ______(be)late again.
The teacher will be angry if he is late.
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If 引导的条件状语从句
If引导的条件状语从句与unless引导的条件状语从句的转换
If+否定形式=unless+肯定形式
You won’t pass the exam if you don’t work hard. =You won’t pass the exam unless you work hard.
If you don’t go to bed earlier,you will feel tired in the morning. =Unless you go to bed earlier,you will feel tired in the morning.
If it doesn’t rain,he will play with me tomorrow. =Unless it rains,he will play with me tomorrow.
If she doesn’t come,I’ll go shopping alone. =Unless she comes,I’ll go shopping alone.
if引导条件状语从句的PPT课件
5.Had I known about the computer program, a huge amount of time and energy_____.
A. would have been saved B. had been saved C. will be saved D. was saved
如果条件从句中有were/had/should时,可以 把if省略,把这几个词放到主句之前,构成主 谓倒装。 ➢Were I you (=If I were you ),I would not do it.
➢Had I the time (=If I had the time),I would go.
6.If we ____ the other road, we might have arrived here in time for the meeting.
A. take B. had taken C. took D. have taken
含蓄虚拟条件句 without…(没有…),if only(要是…就 是好了),but for(要不是),otherwise ,等等
If 引导的条件状语从句
1.真实条件句 表示的情况有可能发生,用陈述语气。 I will not go to the party if I am not invited.
2.虚拟条件句 表示的情况不可能发生或者发生的可能很 小。 下面我们重点讲虚拟条件句
时间
从句
主句
Байду номын сангаас与现在事实相反
过去式
(be 一般用were)
should would could might
+动词原形
与过去事实相反
if的用法总结及例句PPT
与“in case”的联系
in case可引导目的状语从句,相当于if引导的条件状语 从句。例如:“Take an umbrella in case it rains.”( 带把伞以防下雨。)
熟练运用if在固定短语和句型中应用
“If only”句型
表示对现在或将来的虚拟假设, 通常用于表达遗憾或愿望。例如 :“If only I had more time, I could finish the project.”(要 是我有更多的时间,我就能完成 这个项目了。)
典型例句
01
If it rains tomorrow, we will stay at home.(如果 明天下雨,我们就呆在家里。)
02
If I were you, I would take the job.(如果我是你 ,我就会接受这份工作。)
03
If he had known the answer, he would have told me.(如果他知道答案,他就会告诉我。)
功能
用于表达在某种条件下会产生的结果 或采取的行动。
结构特点
01
if从句+主句
if引导的条件状语从句通常位于 主句之前,由if引导,后面紧跟 主句。
时态呼应
02
03
虚拟语气
if从句中的时态通常与主句中的 时态相呼应,表达相应的假设条 件。
在if引导的虚拟条件句中,从句 和主句的时态往往采用虚拟语气 ,表达与事实相反的情况。
“As if/though”句 型
引导方式状语从句,表示比喻或 虚拟的情况。例如:“She speaks English as if she were a native speaker.”(她说英语就 像以英语为母语的人一样。)
If引导的条件状语从句精品PPT课件
主从句的区分
Eg:
1) I will bring an umbrella if it rains outside.
2) If the car is red, I will buy two.
3) If the ground is dry, we will play football this afternoon.
Choose the best answer
1. If Mary ____ (wan at once.
A. want , give B. wants, give C. wants, gives D. want, gives 2. If Tony ___ (have) time, ____(go) shopping with
If引导的状语从句之 主将从现 看下面的句子, If you can come here, bring me a book. 表示的是一种可能的情况。在这个句子中, 主句用祈使句,从句用一般现在时态。可 是如果句子说,“如果你不能来,我会自 己去取”,该怎么表达呢?
If引导的条件状语从句
大庆市第51
If在状语从句中的位置
If引导的条件状语从句,如下列的例子: 1) If you know the answer, please tell me. 2) If they come here, we will pick them up. 3) She will send me an email if I notice her. * 由此可以看出,if引导的句子放在句首,
him. A. have, go B. has, go C. has, goes D. have, goes 3. __ (remember) all the words if he ___(find) the
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PPT课件
If I get up too late, I will go to school by bus. 如果我起床太迟了,我会坐公交车去上学。 If you walk to school , you will be more healthy. 如果你走路去上学,你会更健康。
If everyone obeys the traffic rules, the roads will be safer. 如果人人都遵守交通规则,道路 会更加安全。
10
结束语
当你尽了自己的最大努力时,失败也是伟大的, 所以不要放弃,坚持就是正确的。
When You Do Your Best, Failure Is Great, So Don'T Give Up, Stick To The End
演讲人:XXXXXX 时 间:XX年XX月XX日
Translation
1 如果她早点儿起床,就有时间在家里吃餐。 2 如果你参加聚会,你将会过得很开心。 3 如果明天下雨,我们将不去野餐。 4 如果你经常听英文歌,你将会喜欢英语。
写在最后
成功的基础在于好的学习习惯
The foundation of success lies in good habits
If Adverbial Clauses of Condition If 引导的条件状语从句
What will happen if you go to school late ?
If I go to school late, I will feel nervous
If I get up too late,
Drills/exercise:
1I。f s如he果_她g_e_早t_s点_u儿_p_起_床a l,itt就le有e时ar间lie在r,家sh里e’吃l早l h餐ave 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 r_a_in_s_tomorrow, we _w_o_n’__t_g_ofor 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 _lik_e_English.
If everyone obeys the traffic rules, the roads will be safer. 如果人人都遵守交通规则,道路 会更加安全。
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结束语
当你尽了自己的最大努力时,失败也是伟大的, 所以不要放弃,坚持就是正确的。
When You Do Your Best, Failure Is Great, So Don'T Give Up, Stick To The End
演讲人:XXXXXX 时 间:XX年XX月XX日
Translation
1 如果她早点儿起床,就有时间在家里吃餐。 2 如果你参加聚会,你将会过得很开心。 3 如果明天下雨,我们将不去野餐。 4 如果你经常听英文歌,你将会喜欢英语。
写在最后
成功的基础在于好的学习习惯
The foundation of success lies in good habits
If Adverbial Clauses of Condition If 引导的条件状语从句
What will happen if you go to school late ?
If I go to school late, I will feel nervous
If I get up too late,
Drills/exercise:
1I。f s如he果_她g_e_早t_s点_u儿_p_起_床a l,itt就le有e时ar间lie在r,家sh里e’吃l早l h餐ave 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 r_a_in_s_tomorrow, we _w_o_n’__t_g_ofor 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 _lik_e_English.
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
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For example: 1.If you work harder, you’ll pass the exam. ==Work harder and you’ll pass the exam.
2.If you don’t hurry up,you’ll miss the train. ==Hurry up, or you’ll miss the train.
二.if 引导的条件状语从句的位置:
if 引导的条件状语从句,既可以放在主句之前,也 可以放在主句之后。当从句置于主句之前时,常用都 用逗号与主句隔开。 For example:
You will catch the bus if you get up early. ==If you get up early ,you will catch the bus.
3.除非你更加小心点,否则你就会出事故。 Unless you_______more care, you_______ an accident.
-Hale Waihona Puke 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”。
-
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。
For example:
遵守“主将从现”
If 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”
For example:
的原则。
1).You must see the doctorif you are ill.
2)Don’t wear warm clothesif you want to go skating.
1.主句不能用be going to 表示将来时,只能用will!
2.在if 引导的条件状语从句中,不能使用 some,而用any.
-
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
同义句转换:
1. Study hard, or you won’t pass the exam. If you study hard, you _____ _____ the exam. 2. Take a taxi, and you’ll catch the train. _____ you _____ a taxi, you’ll catch the train.
A. feel B. felt C. feeling
-
D. will feel
( )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. 10. Lana ________( buy) a new dress if the old one ________(be) out of style.
--We’ll go to the library tomorrow if it ___.
A. isn’t rain
B. rain
C. won’t rain
D. doesn’t rain
( )4. Please open the window if you _____
very hot in the classroom.
1.除非明天下雨,否则我将和你一起去公园的。 Exercise: Unless it _____ tomorrow, I ________ to
the park with you. 2.除非我们早点离开,否则不能准时到。 we can’t get there on time unless we_________ earlier.
中考复习专题之
——if与unless 引导的
真实性条件状语从句
渡普中学
徐爱玲
-
一.什么叫条件状语语从句?
由连接词 if 或unless引导的状语从句叫做条件 状语从句。条件状语从句用来说明主句动作发生的 条件,即某一件事情(从句中的动作)实现之后, 其他事情(主句中的动作)可能发生。其中if 是“如 果,假如”的意思.unless是“除非,如果不”的意思。
-
四.unless引导的条件状语从句:
“unless”意思是“如果不;除非;” 相当于''if...not''. unless 引导的条件状语从句主从句时态与if 的一样! For example: We’ll go for a picnic if it doesn’t rain this Sunday. ===We’ll go for a picnic unless it rains this Sunday.
( )2. I ____ her the answer if she ____me.
A. can tell, will ask
B. will tell, will ask
C. would tell, ask
D.can tell, asks
( )3. – What are you going to do tomorrow?
2.If you don’t hurry up,you’ll miss the train. ==Hurry up, or you’ll miss the train.
二.if 引导的条件状语从句的位置:
if 引导的条件状语从句,既可以放在主句之前,也 可以放在主句之后。当从句置于主句之前时,常用都 用逗号与主句隔开。 For example:
You will catch the bus if you get up early. ==If you get up early ,you will catch the bus.
3.除非你更加小心点,否则你就会出事故。 Unless you_______more care, you_______ an accident.
-Hale Waihona Puke 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”。
-
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。
For example:
遵守“主将从现”
If 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”
For example:
的原则。
1).You must see the doctorif you are ill.
2)Don’t wear warm clothesif you want to go skating.
1.主句不能用be going to 表示将来时,只能用will!
2.在if 引导的条件状语从句中,不能使用 some,而用any.
-
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
同义句转换:
1. Study hard, or you won’t pass the exam. If you study hard, you _____ _____ the exam. 2. Take a taxi, and you’ll catch the train. _____ you _____ a taxi, you’ll catch the train.
A. feel B. felt C. feeling
-
D. will feel
( )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. 10. Lana ________( buy) a new dress if the old one ________(be) out of style.
--We’ll go to the library tomorrow if it ___.
A. isn’t rain
B. rain
C. won’t rain
D. doesn’t rain
( )4. Please open the window if you _____
very hot in the classroom.
1.除非明天下雨,否则我将和你一起去公园的。 Exercise: Unless it _____ tomorrow, I ________ to
the park with you. 2.除非我们早点离开,否则不能准时到。 we can’t get there on time unless we_________ earlier.
中考复习专题之
——if与unless 引导的
真实性条件状语从句
渡普中学
徐爱玲
-
一.什么叫条件状语语从句?
由连接词 if 或unless引导的状语从句叫做条件 状语从句。条件状语从句用来说明主句动作发生的 条件,即某一件事情(从句中的动作)实现之后, 其他事情(主句中的动作)可能发生。其中if 是“如 果,假如”的意思.unless是“除非,如果不”的意思。
-
四.unless引导的条件状语从句:
“unless”意思是“如果不;除非;” 相当于''if...not''. unless 引导的条件状语从句主从句时态与if 的一样! For example: We’ll go for a picnic if it doesn’t rain this Sunday. ===We’ll go for a picnic unless it rains this Sunday.
( )2. I ____ her the answer if she ____me.
A. can tell, will ask
B. will tell, will ask
C. would tell, ask
D.can tell, asks
( )3. – What are you going to do tomorrow?