条件状语从句完整优秀课件
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条件状语从句 PPT课件
1．当主句和从句所表示的是原理、客观真理、
规则时，主句是一般现在时（包括祈使 句和含有情态动词can/may/must等）， 从句也要用一般现在时。
例如： 1) If you put a piece of paper into water, it gets wet．如果你把一张纸放进水中，它 会变湿。(原理)
2. Where _______ he _________(see) the film if he ________________(have) time?
3. If there __________(be) fewer trees, there _______________( be) more pollution.
1） 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。
2） 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。
it____(die). 10. Don't go out tomorrow if it ______(rain).
二、同义句转换
1. Play some sports, and you'll be healthy. ____ _____ play some sports, you'll be
healthy. 2. If you study hard, you will catch up with
So I hope all of us will try to follow these: Never throw rubbish everywhere. Don't step on the grass or pick flowers near the beach. In a word, beaches are an important part of our living environment; we all need to try our best to protect them. （小结）
规则时，主句是一般现在时（包括祈使 句和含有情态动词can/may/must等）， 从句也要用一般现在时。
例如： 1) If you put a piece of paper into water, it gets wet．如果你把一张纸放进水中，它 会变湿。(原理)
2. Where _______ he _________(see) the film if he ________________(have) time?
3. If there __________(be) fewer trees, there _______________( be) more pollution.
1） 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。
2） 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。
it____(die). 10. Don't go out tomorrow if it ______(rain).
二、同义句转换
1. Play some sports, and you'll be healthy. ____ _____ play some sports, you'll be
healthy. 2. If you study hard, you will catch up with
So I hope all of us will try to follow these: Never throw rubbish everywhere. Don't step on the grass or pick flowers near the beach. In a word, beaches are an important part of our living environment; we all need to try our best to protect them. （小结）
条件状语从句 课件 (共15张PPT)
※状语从句
原因状语从句 结果状语从句
(副词性从句) 方式状语从句
让步状语从句
目的状语从句
地点状语从句
比较状语从句
语
走进
文
小学语文一道作业题： 要求：把以下四句话用关联词连接:
1.李姐姐瘫痪了； 2.李姐姐顽强地学习； 3.李姐姐学会了多门外语； 4.李姐姐学会了针灸。
正确答案应该是： 李姐姐虽然瘫痪了，但顽强地学习，不仅学会了 多门外语，而且还学会了针灸。
2、是否：名词性从句中的 if
主情从现
（2020全国一卷完形填空）I wonder if parents should always tell the truth no matter
the consequences.
的
3、如果：虚拟语气中的 if
用
如果你是湖水我乐意是堤岸环绕
法
If you were the water in the lake, I would be pleased to be the dikesurrounding you.
下也可放在句首或句中。
条件状语从句
If you do not leave me, we will die together.
（四级水平）如果不滚开 我就和你同归于尽。 （六级水平）你若不离不弃 我必生死相依。 （八级水平）问世间情为何物 直教人生死相许。 （专家水平）天地合 乃敢与君绝。 （活佛水平）你在或不在 爱就在那里 不增不减 。
语
走进
文
结果有一个孩子写：
虽然李姐姐顽强地学会了针灸和多门外语，可她还是瘫痪了。
后来，发现更猛的孩子写道：
1、李姐姐不但学会了外语，还会了针灸，她那么顽强地学习，终 于瘫痪了。
条件状语从句完整课件(共14张PPT)
如果我们提出更优惠的条件，他就会在合同上签 字。
He won't be against us in the meeting providing (that) we ask for his advice in advance．
如果我们提前征求一下他的意见，他就不在会上 反对我们。
5. as ( so ) long as…. “只要…， 就… ” 表示 一种前提条件
I can tell you the truth on condition that you promise to keep a secret．
我可以告诉你真相，条件是你答应保守秘密。
You can pass the custom on condition that we have checked your luggage．你可以通过 海关，但条件是我们得检查完你的行李。
If +虚拟条件句，
1. 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． 要不是交通堵塞，我本会来得早一些。 If it should be true, it would be silly to
down． 如果你考试不及格，你会让他失望的。
如果你作业做完了就可以回家了。 If you have finished the homework， you
can go home.
1. If 从句 （一般现在时）， 主句 （ 一般现在时 ）
表示科学常识，说明， 经常性的动作，倾向 自动会发生的事
He won't be against us in the meeting providing (that) we ask for his advice in advance．
如果我们提前征求一下他的意见，他就不在会上 反对我们。
5. as ( so ) long as…. “只要…， 就… ” 表示 一种前提条件
I can tell you the truth on condition that you promise to keep a secret．
我可以告诉你真相，条件是你答应保守秘密。
You can pass the custom on condition that we have checked your luggage．你可以通过 海关，但条件是我们得检查完你的行李。
If +虚拟条件句，
1. 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． 要不是交通堵塞，我本会来得早一些。 If it should be true, it would be silly to
down． 如果你考试不及格，你会让他失望的。
如果你作业做完了就可以回家了。 If you have finished the homework， you
can go home.
1. If 从句 （一般现在时）， 主句 （ 一般现在时 ）
表示科学常识，说明， 经常性的动作，倾向 自动会发生的事
条件状语从句完整ppt课件
on condition that引导的条件状语从 句中，主句和从句的时态根据具体情 况而定。
03
时态在条件状语从句中 运用
主将从现原则
常见的引导词有
if, unless, when, as long as, in case等。
例子
If it rains tomorrow, we will stay at home.（如果明天下雨，我们就待在 家里。）
作用
条件状语从句用于表达条件、假 设、条件限制等，帮助阐明主句 中的情况或结果，增强语言表达 的逻辑性和准确性。
分类及特点
01
02
03
真实条件句
表达现实中可能实现的条 件，使用一般现在时或一 般将来时。
非真实条件句
表达与现实相反或不太可 能实现的条件，使用虚拟 语气。
隐含条件句
条件不直接表达出来，但 通过上下文或语境可以推 断出来。
特殊情况处理
如
表示与现在事实相反的虚拟语气，从句用一般过去时。
例子பைடு நூலகம்
If I were you, I would not do that.（如果我是你，我不会那样做。）
时态一致问题
在条件状语从句中，主句和从句的时态 要保持一致。
如果主句是过去时态，从句也要用相应 的过去时态。
例子：He would have finished his work if he had not been
针对性练习题
If I _______ (be) you, I _______ (not do) that.
练习2：Complete the sentences with the correct conditional clause. (用正确的条件状 语从句完成句子。)
初中条件状语从句公开课课件(共35张PPT)
四、if的两面性
if引导条件状语从句时意为“如果”，如果引导宾语从句则意为“是否”， 放在谓语动词之后。请比较：
1) We will go out if it is fine tomorrow.
2) I don’t know if the train has arrived.
A joke
• A man liked a girl very much and asked if the girl could marry him. But the girl didn’t agree. She said ,“ if there is only one man left, I will marry you.”
buy lots of delicious food.
2. if 条件状语从句中，如果主句有 must，can，may 等情态动词，从
句用_一__般_现__在__时___。
例如：You must stop if the traffic light _is___ (be) red.
“主情从现”
If you feel hungry,
if
will
she, call me, I, tell her about it
If she calls me, I will tell her about it.
he ,come, next weekend, I ,tell you If he comes next weekend, I will tell you.
if 引导的条件状语从句时态
主将从现 祈使句 情态动词
I will sing a song if I am happy.
Don’t cross the road if the light is red You must stop if the traffic light
高中英语 高中条件状语从句讲解(共17张ppt )
03 in case 以防，假使
You can borrow my car in case you promise not to drive too fast. 假如你答应不开得太快，我就可以把车借给你。
04 providing/provided that 如果
He’s welcome to come along，provided that he behaves himself. 只要他规矩点，他一起去是受欢迎的。
or young chicks，they don't use a nest.
A. why
B. how
C. unless
D. where
②You must keep on working in the evening，________ you are sure you can
finish the task in time.
A.Once
B.If
C.Because
D.Unless
3.
you can sleep well, you will lose the ability to focus, plan and stay motivated after one or two
nights.
A.Once
B.Unless
C.If
hard togeth
C.as long as
D.for fear that
we Chinese work
2.
you try to do something beyond what you have already mastered, you will never grow.
特殊引导词 as/so long as（只要） only if（只有） providing/provided that （如果） suppose/supposing that（假设） in case（以防，假使） on condition that（条件是）
You can borrow my car in case you promise not to drive too fast. 假如你答应不开得太快，我就可以把车借给你。
04 providing/provided that 如果
He’s welcome to come along，provided that he behaves himself. 只要他规矩点，他一起去是受欢迎的。
or young chicks，they don't use a nest.
A. why
B. how
C. unless
D. where
②You must keep on working in the evening，________ you are sure you can
finish the task in time.
A.Once
B.If
C.Because
D.Unless
3.
you can sleep well, you will lose the ability to focus, plan and stay motivated after one or two
nights.
A.Once
B.Unless
C.If
hard togeth
C.as long as
D.for fear that
we Chinese work
2.
you try to do something beyond what you have already mastered, you will never grow.
特殊引导词 as/so long as（只要） only if（只有） providing/provided that （如果） suppose/supposing that（假设） in case（以防，假使） on condition that（条件是）
条件状语从句课件.ppt
If winter comes, spring can not be far behind.
8
主情从现
If we don't get what we like, we have to like what we can get.
随遇而安 If you want knowledge, you must work hard at it.
3
If you jump, I will jump.
1.若主句是一般将来时， 从句要用一般现在时。
I will jump if you jump.
2.If 引导的条件状语从句，既可放 于句首，也可以放在主句的后面。
4
主将从现
If you don't aim high, you will never hit high.
主祈从现
If you want to speak English fluently,
sp_e_a_k__lo_u__d_ly__a_n_d__c_le_a_r.ly.
If you want your dream come true,
se_iz_e__th_e__d_a_y_,_s_e_i_z_e__th_e. hour.
10
ACT 3
下面这句话，是Margaret Thatcher对男人和女人的评价 11
In politics, if you want someone to make a speech, ask a man; if you want something done, ask a woman.
如果主句是祈使句， 从句同样要用一般现在时。
条件状语从句 If（真实）篇
1
If 引导的条件状语从句
8
主情从现
If we don't get what we like, we have to like what we can get.
随遇而安 If you want knowledge, you must work hard at it.
3
If you jump, I will jump.
1.若主句是一般将来时， 从句要用一般现在时。
I will jump if you jump.
2.If 引导的条件状语从句，既可放 于句首，也可以放在主句的后面。
4
主将从现
If you don't aim high, you will never hit high.
主祈从现
If you want to speak English fluently,
sp_e_a_k__lo_u__d_ly__a_n_d__c_le_a_r.ly.
If you want your dream come true,
se_iz_e__th_e__d_a_y_,_s_e_i_z_e__th_e. hour.
10
ACT 3
下面这句话，是Margaret Thatcher对男人和女人的评价 11
In politics, if you want someone to make a speech, ask a man; if you want something done, ask a woman.
如果主句是祈使句， 从句同样要用一般现在时。
条件状语从句 If（真实）篇
1
If 引导的条件状语从句
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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You’ll succeed as (so ) long as ( if only ) you try hard.
只要你努力，你就会成功。
but for +短语， 要不是…
6. But for the rain，we should have a pleasant journey．
要不是下雨，我们的旅行肯定很愉快。
shall we do？ 假若储备的食品都吃光了，我们怎么办呢？
4．provided that…. / providing (that ) conj．假若
"provided / providing ＋（that）从句"表示一种 假设条件。
He will sign the contract provided (that) we offer more favorable terms．
down． 如果你考试不及格，你会让他失望的。
如果你作业做完了就可以回家了。 If you have finished the homework， you
can go home.
1. If 从句 （一般现在时）， 主句 （ 一般现在时 ）
表示科学常识，说明， 经常性的动作，倾向 自动会发生的事
Without…. +短语， 如果没有….
7. Without water, there would be no life on earth at all．如果没有水，地球上就不 会有生命。
= If there were no water, there would be no life on earth at all.
3．supposing ( that) conj． 假若，倘若
supposing 引导的从句表示一种假设条件。通常 在句首
Supposing it rains，shall we continue the sports meeting？
倘若下雨，我们的运动会还会继续进行吗？ Supposing the stocks of food run out，what
I can tell you the truth on condition that you promise to keep a secret．
我可以告诉你真相，条件是你答应保守秘密。
You can pass the custom on condition that we have checked your luggage．你可以通过 海关，但条件是我们得检查完你的行李。
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.
help me. 3. If I have time this afternoon, I’ll go to the
b外，是否还有其他连 词可以引导条件状语从句呢
回答是肯定的。不仅有，还有很多。这 些词由于出现的频率小，且用法较复杂一 些，所以不如if为大家所熟知罢了。下面就 这些词的用法做一介绍。
如果我们提出更优惠的条件，他就会在合同上签 字。
He won't be against us in the meeting providing (that) we ask for his advice in advance．
如果我们提前征求一下他的意见，他就不在会上 反对我们。
5. as ( so ) long as…. “只要…， 就… ” 表示 一种前提条件
4. People often don’t go out on Sundays if it rains.
2．表示将来的可能性，能力， 允诺， 命令，要求，请求，建议时， 运用“主将从现”的原则。
1. If I get the job, I’ll buy a mobile phone. 2. If my homework is difficult, I’ll ask Helen to
条件状语从句完整优秀课件
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
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
除非天气不好，我每天早晨都要去散步。
3. I won‘t loan you unless you are in extreme need of money．
若不是你急需用钱，我不会借钱给你的。
2．on condition that．只有在……条件下， 以……为条件
on condition that引导的条件从句是主句中事 件发生的前提条件或唯一条件。
1．unless ．除非；若不；如果不……； 除非在……时候
1. 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。 2. Unless bad weather stops me，I go for a walk every morning．
=If it didn’t rain, we should have a pleasant journey.
But for your help, we should not have finished the task in time．
要不是你帮忙，我们肯定不能及时完成任务。
=If you hadn’t helped us, we should not have finished the task in time.
只要你努力，你就会成功。
but for +短语， 要不是…
6. But for the rain，we should have a pleasant journey．
要不是下雨，我们的旅行肯定很愉快。
shall we do？ 假若储备的食品都吃光了，我们怎么办呢？
4．provided that…. / providing (that ) conj．假若
"provided / providing ＋（that）从句"表示一种 假设条件。
He will sign the contract provided (that) we offer more favorable terms．
down． 如果你考试不及格，你会让他失望的。
如果你作业做完了就可以回家了。 If you have finished the homework， you
can go home.
1. If 从句 （一般现在时）， 主句 （ 一般现在时 ）
表示科学常识，说明， 经常性的动作，倾向 自动会发生的事
Without…. +短语， 如果没有….
7. Without water, there would be no life on earth at all．如果没有水，地球上就不 会有生命。
= If there were no water, there would be no life on earth at all.
3．supposing ( that) conj． 假若，倘若
supposing 引导的从句表示一种假设条件。通常 在句首
Supposing it rains，shall we continue the sports meeting？
倘若下雨，我们的运动会还会继续进行吗？ Supposing the stocks of food run out，what
I can tell you the truth on condition that you promise to keep a secret．
我可以告诉你真相，条件是你答应保守秘密。
You can pass the custom on condition that we have checked your luggage．你可以通过 海关，但条件是我们得检查完你的行李。
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.
help me. 3. If I have time this afternoon, I’ll go to the
b外，是否还有其他连 词可以引导条件状语从句呢
回答是肯定的。不仅有，还有很多。这 些词由于出现的频率小，且用法较复杂一 些，所以不如if为大家所熟知罢了。下面就 这些词的用法做一介绍。
如果我们提出更优惠的条件，他就会在合同上签 字。
He won't be against us in the meeting providing (that) we ask for his advice in advance．
如果我们提前征求一下他的意见，他就不在会上 反对我们。
5. as ( so ) long as…. “只要…， 就… ” 表示 一种前提条件
4. People often don’t go out on Sundays if it rains.
2．表示将来的可能性，能力， 允诺， 命令，要求，请求，建议时， 运用“主将从现”的原则。
1. If I get the job, I’ll buy a mobile phone. 2. If my homework is difficult, I’ll ask Helen to
条件状语从句完整优秀课件
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
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
除非天气不好，我每天早晨都要去散步。
3. I won‘t loan you unless you are in extreme need of money．
若不是你急需用钱，我不会借钱给你的。
2．on condition that．只有在……条件下， 以……为条件
on condition that引导的条件从句是主句中事 件发生的前提条件或唯一条件。
1．unless ．除非；若不；如果不……； 除非在……时候
1. 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。 2. Unless bad weather stops me，I go for a walk every morning．
=If it didn’t rain, we should have a pleasant journey.
But for your help, we should not have finished the task in time．
要不是你帮忙，我们肯定不能及时完成任务。
=If you hadn’t helped us, we should not have finished the task in time.