高考英语名词性从句精讲精练课件
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高中英语 名词性从句优质课(共21张)ppt课件
more than half of the students in middle and
primary schools are suffering from it. Related
experts say that the causes leading to it are very
精选ppt课件2021
16
7 points Predicative clause
他也指出导致近视（ short-sightedness） 的原因是如此的复杂,到目前为止没有哪一 种药物能治愈近视
What he also pointed out is __th__a_t _th_e__c_a_u_s_e_s of s_h_o_r_t_-_si_g_h_t_e_d_n_e_ss__a_r_e_s_o__c_o_m_p_l_ic_a_t_e_d_____ and that up till now no medicine can cure short-sightedness.
would 3. Our physics teacher once told us that light ___tr_a_v_e_l_s__ （ travel ） faster than sound.
1)主句的动词用一般现在时，从句谓语可根据需要选用
各种时态
2）主句的动词用过去时，从句谓语动词用过去相应时态
it 也可作形式宾语。
精选ppt课件2021
11
考点6 同位语从句 与定语从句的区别
1. The suggestion ______he raised at the meeting is very good.
A. which B. that C. / D. what 2. The suggestion ____ the students (should) have plenty of exercise is very good.
高考英语名词性从句(共26张PPT)
1
If a man doesn't have a strong will to get the final victory, he will never succeed in his life, and he is no more than a failure.
一个人如果没有一个去赢得最终胜利的坚 强意志,他必将不会在他的人生道路上取得成 功, 而仅仅是个失败者.
2.____T_h_a_t____ the earth is round is known to us all. 3. __T_h_a_t_ he won the race was _w_h_a_t__ we expected.
归纳 th__a_t:____只起连接作用，在从句中不充当任何成分，
没有词义
go
or
not.
句
⑤表语从句：The
problem
is
who
we
can
gettoຫໍສະໝຸດ replace him.⑥同位语从句：The news that they won the gold
medal was very encouraging.
4
请判断出下列的句子属于哪种从句
What I want to do is taking a bath. (主从) She did not know what had happened. (宾从) I don’t think he is an honest boy. (宾从) The fact is that he stole the car. (表从) That he will come is certain. (主从) What he said surprised me most. (主从)
If a man doesn't have a strong will to get the final victory, he will never succeed in his life, and he is no more than a failure.
一个人如果没有一个去赢得最终胜利的坚 强意志,他必将不会在他的人生道路上取得成 功, 而仅仅是个失败者.
2.____T_h_a_t____ the earth is round is known to us all. 3. __T_h_a_t_ he won the race was _w_h_a_t__ we expected.
归纳 th__a_t:____只起连接作用，在从句中不充当任何成分，
没有词义
go
or
not.
句
⑤表语从句：The
problem
is
who
we
can
gettoຫໍສະໝຸດ replace him.⑥同位语从句：The news that they won the gold
medal was very encouraging.
4
请判断出下列的句子属于哪种从句
What I want to do is taking a bath. (主从) She did not know what had happened. (宾从) I don’t think he is an honest boy. (宾从) The fact is that he stole the car. (表从) That he will come is certain. (主从) What he said surprised me most. (主从)
高中英语名词性从句课件(共42张ppt)
China is no longer _w__h_a_t_ it used to be.
4. A modern city has been set up in ______ was a wasteland ten years ago. （天津） A. what B. which C. that D. where
which
作主/宾/
3. 连接副词： when、 where、why、ho表w
作状语
主语从句一般有三种结构： 1. 主语从句+谓语 That she will win the match is certain. 2.主语从句+形容词（名词词组、过去分词）+that从句
It is important that we teens should learn English. It is a good news that he will attend the meeting on behalf of our school.
1. __T_h_a__t _ he said so made us angry . _W___h_a_t_ he said at the meeting made us angry.
2. A computer can only do___w__h_a_t__ you have
instructed it to do. （全国） 3. 中国不再是过去的样子了。
It looks as if it’s going to rain.
3.the reason why … is that … 和It is because …等结构。
It was because I got up late.
同位语从句在句中作同位语，它一般要放在主 句中某些名词的后面，说明这些名词的含义。可跟 同位语从句的名词主要有： fact, news, promise, reason, idea, hope, word, belief等。 如：
4. A modern city has been set up in ______ was a wasteland ten years ago. （天津） A. what B. which C. that D. where
which
作主/宾/
3. 连接副词： when、 where、why、ho表w
作状语
主语从句一般有三种结构： 1. 主语从句+谓语 That she will win the match is certain. 2.主语从句+形容词（名词词组、过去分词）+that从句
It is important that we teens should learn English. It is a good news that he will attend the meeting on behalf of our school.
1. __T_h_a__t _ he said so made us angry . _W___h_a_t_ he said at the meeting made us angry.
2. A computer can only do___w__h_a_t__ you have
instructed it to do. （全国） 3. 中国不再是过去的样子了。
It looks as if it’s going to rain.
3.the reason why … is that … 和It is because …等结构。
It was because I got up late.
同位语从句在句中作同位语，它一般要放在主 句中某些名词的后面，说明这些名词的含义。可跟 同位语从句的名词主要有： fact, news, promise, reason, idea, hope, word, belief等。 如：
高三英语复习课件：名词性从句(共22张PPT)
consider, believe, guess, suppose,
make...
改错： 1. I shall see to it what he is taken good care of
when you are abstehnatt.
2. I would appreciate if you can help me solve the difficult problem. it
补连接代词whatever, whoever,
whomever, whichever, whose.
缺状语 补连接副词whenever,wherever, why,how
只缺“是否”意思
补whether, if
什么都不缺 补that
3. 确定成分后，再根据句子意思选择引导词
分类
连接词
词义
充当的成分
从属连词
that if/whether as if/ as though
无 是否 似乎，好像
不充当成分 不充当成分 不充当成分
连接代词 连接副词
who(ever) whom(ever) whose(ever) which(ever)
what(ever) when(ever) where(ever) why how
(2)动词hate,like, dislike,appreciate,enjoy等表 示 “喜欢”, “厌恶”的动词以及一些动词短语 see to(负责,保证), depend on, rely on等常用 it作形式宾语，而将宾语从句后置。
改错:
1. If the delayed flight will take off depens much
5. We will take a trip to _w_h__at__ we call Tibet.
make...
改错： 1. I shall see to it what he is taken good care of
when you are abstehnatt.
2. I would appreciate if you can help me solve the difficult problem. it
补连接代词whatever, whoever,
whomever, whichever, whose.
缺状语 补连接副词whenever,wherever, why,how
只缺“是否”意思
补whether, if
什么都不缺 补that
3. 确定成分后，再根据句子意思选择引导词
分类
连接词
词义
充当的成分
从属连词
that if/whether as if/ as though
无 是否 似乎，好像
不充当成分 不充当成分 不充当成分
连接代词 连接副词
who(ever) whom(ever) whose(ever) which(ever)
what(ever) when(ever) where(ever) why how
(2)动词hate,like, dislike,appreciate,enjoy等表 示 “喜欢”, “厌恶”的动词以及一些动词短语 see to(负责,保证), depend on, rely on等常用 it作形式宾语，而将宾语从句后置。
改错:
1. If the delayed flight will take off depens much
5. We will take a trip to _w_h__at__ we call Tibet.
名词性从句-完整版PPT课件精选全文
3. 连接副词：when(＝the time when什么时候，何时)，where(＝the place where什么地方，何地)，how(＝the way that/in which怎样， 以……方式，如何)，why＝the reason why为什么)。它们除起连 接作用，还在从句中作状语。
3) wh类连接词引导的主语从句： wh类连接词包括wh类的连接代词(who, whom,
whose, which, what, whoever, whomever, whichever, whatever等)和连接副词(when,
where, how, why, whenever, wherever, however 等)。what, when和wh-ever类的词有时可不表 疑问。wh类连接代词在句中既起连接作用， 又可充当主语、宾语、表语、定语等成分。 wh类连接副词在句中起连接作用，在从句中 可充当时间、地点、原因、方式状语。
【温馨提示】 ①whether/ if引导宾语从句表示“是否”
的意思时，一般情况下可互换。 ②if引导宾语从句时可以有否定式，而
whether从句则没有。 e.g. I don’t care if he doesn’t come.
5) 特殊疑问词引导的宾语从句： 由who, what, how, which, whose, where, why等词引导的宾语从句，可作动词、 介词及形容词的宾语。
【温馨提示】 doubt, doubtful与sure后名词性从句连接词 that, whether, if的选择。 ①当doubt, doubtful用于肯定句时，后面的名
词性从句的连接词常用whether或if；当 doubt, doubtful用于否定句或疑问句时，后 面名词性从句的连接词用that。
高考英语名词性从句课件(30张PPT)
10
8【.__W_h_o_will go】hasn’t decided yet.
9. Do you know【_w_h__o/_w_h_o_m___Mr Li is speaking to?】
10【. _W__h_a_t I need】is enough time and money. 11. I want to know【_w__h_a_t you name is.】
6
7
1【.__T_h_a_t the earth is round】is true.
2. I think【_th_a_t_your answer is right about the question.】
3.The news【___th_a_t__he will come back is true 】
4【. W__h__et_h_e_rhe can offer some money to us】is
important for this work.
8
5. I wonder【__w_h_et_h_e_r___you can go with me.】 6. I didn’t know【_w_h_et_h_e_r/_if_he will come or not. 】 7.Our plan depends on【_w_h_e_th_e_r_we have enough time.】
17
9. Can you tell me where can I get the book?
I can
10. She tells me that tonight will be very cold and she won’t go out.
that
18
总结规律 Summary 名词性从句常考考点： 1.连接词使用 2.that在宾语从句中省略 3.虚拟语气在名词性从句中的应用
8【.__W_h_o_will go】hasn’t decided yet.
9. Do you know【_w_h__o/_w_h_o_m___Mr Li is speaking to?】
10【. _W__h_a_t I need】is enough time and money. 11. I want to know【_w__h_a_t you name is.】
6
7
1【.__T_h_a_t the earth is round】is true.
2. I think【_th_a_t_your answer is right about the question.】
3.The news【___th_a_t__he will come back is true 】
4【. W__h__et_h_e_rhe can offer some money to us】is
important for this work.
8
5. I wonder【__w_h_et_h_e_r___you can go with me.】 6. I didn’t know【_w_h_et_h_e_r/_if_he will come or not. 】 7.Our plan depends on【_w_h_e_th_e_r_we have enough time.】
17
9. Can you tell me where can I get the book?
I can
10. She tells me that tonight will be very cold and she won’t go out.
that
18
总结规律 Summary 名词性从句常考考点： 1.连接词使用 2.that在宾语从句中省略 3.虚拟语气在名词性从句中的应用
高中英语语法 名词性从句 复习 高考题 课件 (共20张PPT)
By Madeline
二．判定从句连接词及成分，并归纳从句类型
1. That ____ Mo Yan had been awarded the 2012 Nobel Prize in Literature made us very proud. whether the newly formed committee’s policy 2. It remains to be seen _______ can be put into practice. (2013陕西) Who broke the glass yesterday is not clear. 3. _______ 4. Whoever _______ breaks the law should be punished. 5. Whichever ________ of you breaks the window will have to pay for it.(13江西) Which car you will choose to buy makes no difference. 6. _________ 7. Some people believe whatever _______ has happened before or is happening now will repeat itself in the future. (2014· 北京卷) 8. (2014· 天津卷) I think what ____ impresses me about his painting is the By Madeline colours he uses.
二．判定从句连接词及成分，并归纳从句类型
that people can waste less food by 1. (2013北京) Experts believe ____ shopping only when it is necessary. whoever attends the party a chance to have a 2. (2012福建)We promise _______ photo taken with the movie star. 3. (2012陕西) As many as five courses are provided, and you are free to choose whichever ________ suits you best. 4. (2012辽宁) The newcomer went to the library the other day and searched for whatever _______ he could find about Mark Twain. 5. (2011江西) Why don’t you bring ___ it to his attention that you’re too ill to work on? whether 6. We’ve offered her the job,but I don’t know _______she’ll accept By Madeline it. (2011山东33)
二．判定从句连接词及成分，并归纳从句类型
1. That ____ Mo Yan had been awarded the 2012 Nobel Prize in Literature made us very proud. whether the newly formed committee’s policy 2. It remains to be seen _______ can be put into practice. (2013陕西) Who broke the glass yesterday is not clear. 3. _______ 4. Whoever _______ breaks the law should be punished. 5. Whichever ________ of you breaks the window will have to pay for it.(13江西) Which car you will choose to buy makes no difference. 6. _________ 7. Some people believe whatever _______ has happened before or is happening now will repeat itself in the future. (2014· 北京卷) 8. (2014· 天津卷) I think what ____ impresses me about his painting is the By Madeline colours he uses.
二．判定从句连接词及成分，并归纳从句类型
that people can waste less food by 1. (2013北京) Experts believe ____ shopping only when it is necessary. whoever attends the party a chance to have a 2. (2012福建)We promise _______ photo taken with the movie star. 3. (2012陕西) As many as five courses are provided, and you are free to choose whichever ________ suits you best. 4. (2012辽宁) The newcomer went to the library the other day and searched for whatever _______ he could find about Mark Twain. 5. (2011江西) Why don’t you bring ___ it to his attention that you’re too ill to work on? whether 6. We’ve offered her the job,but I don’t know _______she’ll accept By Madeline it. (2011山东33)
高中英语语法-名词性从句精讲(共73张PPT)
Whoever wants the book may have it. I’ll do whatever I can to help him. Buy whichever is cheapest.
连接副词 when, where, how, why
when • When they will start is unknown yet. where • Where she has gone is a mystery. how • How this happened is not clear. why • Why he did that wasn’t quite unclear.
主语从句关联词 连词 that, whether 连接代词 what, who, whom, which 连接副词 when, where, how, why
连词 that, whether
只起连接作用 在从句中不充当任何句子成分
• That he will win is certain.
• It has been reported that sales of beef in China will increase.
宾语从句关联词 连词 that, whether; if 连接代词 what, who, whom, whose, which 连接副词 when, where, how, why
• I doubt _______ he will come soon. • I do not doubt _____ he will come soon. • Do you doubt _____ he will come soon?
• what surprised me was what he said.
高考英语名词性从句课件(共22张PPT)
1.I don’t think _____(_t_h_ast)he is coming.
2.It is 3.The 4.The
arneepawistosyn____is___________t___h___a_oht_ue_trh_htaaehstaemmisawcdoaenrestluehcsehsm.aamtcihstake.
三.其它连接代词和副词的选用
主要根据名词性从句中的具体意义, 正确的选择who、which、when、where、 why、 how 等连接词，这些连接词既 具有疑问含义，又起连接作用，同时 在从句中充当各种成分。
我们何时举行运动会还没有决定。
__W__h_e_n__ we shall hold our sports meeting is not decided. 我不知道昨天谁打破了玻璃。 I don’t know ___w_h_o____ broke the glass yesterday. 我不知道他长的什么样子。 I have no idea __w__h_a_t___ he looks like. 这就是我忘记眼镜的地方。
分析下列宾语从句中的连词
• I don’t doubt （that ）you will succeed.
• I don’t know whether/if he will come tonight.
• I doubt if /whether you will keep your promise.
3个句子中的连词that, whether, if （是否）在名词性 从句中只起连接作用，在句中不担任成分,被称为连接词
that 和 what 都可引导所有的名词从句。 但是，what除起连接作用外，还在名 词性从句中充当成分，可做从句的主 语、宾语、或表语。而that在名词性从 句中不充当任何成分，只起连接作用。
高中英语名词性从句课件(38张ppt)
The idea that computers can recognize human voices surprises many people.
(that在从句中不充当任何成份)
The idea （that/which） he gave surprises many people．
(that在从句中作gave 的宾语)
宾语从句须注意
1) 由疑问词引导的从句中, 词序按陈述句 顺序排列。
e.g. I wonder what he is doing. 注意：I wonder what was wrong /the matter
with him. 2)当主句的谓语动词是过去时的时候, 从句的 谓语动词应用相应的过去时。自然规律和客观 真理例外。
4) That在其他名词性从句中均不可省略，只有 在宾语从句中that有时可以省略，但在并列 的宾语从句中第二个that 不可省略。
e.g. He said (that) he would leave and that he would never come back again.
5) 否定的转移 若主句谓语动词为think, consider, suppose, believe, expect, fancy, guess, 等, 其后的宾语 从句若含有否定意义, 一般要把否定词转移到 主句谓语上, 从句谓语用肯定式。 e.g. I /we don’t think this dress fits you Well, does it?
3. 连接代词: what, whatever, who, whoever, whom,whose, which（哪个）： 不仅起到连接一个句子的作用,同时也是从句 的一个组成部分；从句不完整，缺成份。
(that在从句中不充当任何成份)
The idea （that/which） he gave surprises many people．
(that在从句中作gave 的宾语)
宾语从句须注意
1) 由疑问词引导的从句中, 词序按陈述句 顺序排列。
e.g. I wonder what he is doing. 注意：I wonder what was wrong /the matter
with him. 2)当主句的谓语动词是过去时的时候, 从句的 谓语动词应用相应的过去时。自然规律和客观 真理例外。
4) That在其他名词性从句中均不可省略，只有 在宾语从句中that有时可以省略，但在并列 的宾语从句中第二个that 不可省略。
e.g. He said (that) he would leave and that he would never come back again.
5) 否定的转移 若主句谓语动词为think, consider, suppose, believe, expect, fancy, guess, 等, 其后的宾语 从句若含有否定意义, 一般要把否定词转移到 主句谓语上, 从句谓语用肯定式。 e.g. I /we don’t think this dress fits you Well, does it?
3. 连接代词: what, whatever, who, whoever, whom,whose, which（哪个）： 不仅起到连接一个句子的作用,同时也是从句 的一个组成部分；从句不完整，缺成份。
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I consider it necessary that we should learn English well
consider find think feel make 等 动词常带宾语补足语,这时要用 形式宾语 it ,宾语从句放到宾补 之后
More
• We think that middle school students master one foreign language possible . We think it possible that middle school students master one foreign language. • 2. We have made that a foreign language is useful weapon in the struggle of life clear. We have made it clear that a foreign language is useful weapon in the struggle of life.
•
翻译: 真奇怪他今天竟然迟到了.
It is strange that he should be late today. strange不省略should为好
表语从句 1. The
从 句 同主语从句 (11个), 外加as if / 引导词: as though,
truth is that he has never been to the countryside. 2. The question is whether we can finish the experiment by Friday. 3. It looks as if it were going to rain. She talks as if /as though she had been there before . school is no longer what it was before.
correction
1. The emperor was pleased by which the minister told him about it. what 2. Are you sorry for that you have annoyed him? it this should be kept secret for the secret for the time 3. I find thatnecessary that this should be kept time being necessary. being 4. Can you doubt if she will succeed? ? that she will succeed 5. I worried about if my brother brother willin time.in time. whether my will return return 6. She said that she had never told a lie. has will leave for Paris? 7. Will you tell me when he leaves for Paris? 8. That our football team won the match last Sunday excited of us. us Our football team won the match last Sunday excited all all of seemed 9. ItIt looked that he was well prepared for the unexpected challenge.
1).whether和if都可以引导宾语从句
a..当whether后紧跟or not时,不用if. eg: I don’t know whether or not I will stay. b.介词后面的宾语从句不能用if.
eg: I worry about whether I hurt
her feeling.
宾语从句经常做介词的宾语
that 1. The Swede stood still, except _____ his lips moved slightly. 2. She is not satisfied withwhat she has ____ achieved. 3. Mary always thinks of how she can do ____ more for the class. whoever 4. He wrote a letter of thanks to ______ helped him. (任何一个)
doubt问题
1. I doubt if / whether he will pass the exam.
肯定句中用 if / whether
2. I don’t doubt that we will win the match.
否定句中用 that
3. Do you doubt that he did it on his own?
用 it 句型翻译:
1. 据说今年高一学生要学新教材.
It is said that the Senior Grade one students will learn a new text this year.
2. 事实是他们靠自己完成了所有的任务. It is a fact that they finished all the work by themselves. 3. 碰巧他们已经参加过军训了.
疑定句中用 that
if / whether • I doubt _________he is telling the truth. • We never doubt _________ the plan will that be carried out . that • Does he doubt _________ you are from Austria? if / whether • I’m doubtful _________ he will agree to this.
宾语从句经常作表语形容词的宾语
1. I’m afraid (that ) I’ll be late. 2. We were surprised that he lost the game.
I consider that we should learn English well necessary.
用形式主语 it 的主语从句常见结构 1. It is clear (necessary, important, possible,remarkable that… 2. It is a fact (a good thing, good news…) that … 3. It is well-known ( reported, recorded, estimated,said, believed) that…
if / whether
if / whether 1. I asked her __________ she had a bike. whether 3. We’re worried about ________ he is safe. whether /if he is well 4. I don’t know ___________ or not. whether 5. I don’t know ________ or not he is well. whether 8. I don’t know _______ to go.
whether与if的辨用
• 表“是否”时，在下列情况下用whether。
• a. 主语从句 b. 表语从句 c. 同位语从句 e. 介词后的宾语从句 f.后接动词不定式 (whether to do sth.) g .whether or not 连在一起引导宾语从 句时不用if
2.注意 whether和if的使用区别
It happened that I was out that day. It is certain that he will do well in the exam. It is said that he told her everything.
注意: It looked that he was right. ( × ) 可以说: It looks as if….
It happened that they had had their military training.
•
众所周知, 比尔 ·盖茨是世界上最富有的 人. It is well-known that Bill Gates is the richest person in the world.
我们应该养成好的学习习惯这很重要. It is important that we (should) form a good habit of studying.
高考英语精 讲精练课件
名词性从句
主语从句
宾语从句
表语从句
同位语从句
1. That he will come is certain. 2. I know that he will come. 3. The truth is that I have been there.
4. The fact that she was late surprised us.
4. It turns out ( seems, happens, appears…) that… 5. It has been found (has been proved,can be seen,must be pointed out) that …
It is a pity that we can’t go swimming.
consider find think feel make 等 动词常带宾语补足语,这时要用 形式宾语 it ,宾语从句放到宾补 之后
More
• We think that middle school students master one foreign language possible . We think it possible that middle school students master one foreign language. • 2. We have made that a foreign language is useful weapon in the struggle of life clear. We have made it clear that a foreign language is useful weapon in the struggle of life.
•
翻译: 真奇怪他今天竟然迟到了.
It is strange that he should be late today. strange不省略should为好
表语从句 1. The
从 句 同主语从句 (11个), 外加as if / 引导词: as though,
truth is that he has never been to the countryside. 2. The question is whether we can finish the experiment by Friday. 3. It looks as if it were going to rain. She talks as if /as though she had been there before . school is no longer what it was before.
correction
1. The emperor was pleased by which the minister told him about it. what 2. Are you sorry for that you have annoyed him? it this should be kept secret for the secret for the time 3. I find thatnecessary that this should be kept time being necessary. being 4. Can you doubt if she will succeed? ? that she will succeed 5. I worried about if my brother brother willin time.in time. whether my will return return 6. She said that she had never told a lie. has will leave for Paris? 7. Will you tell me when he leaves for Paris? 8. That our football team won the match last Sunday excited of us. us Our football team won the match last Sunday excited all all of seemed 9. ItIt looked that he was well prepared for the unexpected challenge.
1).whether和if都可以引导宾语从句
a..当whether后紧跟or not时,不用if. eg: I don’t know whether or not I will stay. b.介词后面的宾语从句不能用if.
eg: I worry about whether I hurt
her feeling.
宾语从句经常做介词的宾语
that 1. The Swede stood still, except _____ his lips moved slightly. 2. She is not satisfied withwhat she has ____ achieved. 3. Mary always thinks of how she can do ____ more for the class. whoever 4. He wrote a letter of thanks to ______ helped him. (任何一个)
doubt问题
1. I doubt if / whether he will pass the exam.
肯定句中用 if / whether
2. I don’t doubt that we will win the match.
否定句中用 that
3. Do you doubt that he did it on his own?
用 it 句型翻译:
1. 据说今年高一学生要学新教材.
It is said that the Senior Grade one students will learn a new text this year.
2. 事实是他们靠自己完成了所有的任务. It is a fact that they finished all the work by themselves. 3. 碰巧他们已经参加过军训了.
疑定句中用 that
if / whether • I doubt _________he is telling the truth. • We never doubt _________ the plan will that be carried out . that • Does he doubt _________ you are from Austria? if / whether • I’m doubtful _________ he will agree to this.
宾语从句经常作表语形容词的宾语
1. I’m afraid (that ) I’ll be late. 2. We were surprised that he lost the game.
I consider that we should learn English well necessary.
用形式主语 it 的主语从句常见结构 1. It is clear (necessary, important, possible,remarkable that… 2. It is a fact (a good thing, good news…) that … 3. It is well-known ( reported, recorded, estimated,said, believed) that…
if / whether
if / whether 1. I asked her __________ she had a bike. whether 3. We’re worried about ________ he is safe. whether /if he is well 4. I don’t know ___________ or not. whether 5. I don’t know ________ or not he is well. whether 8. I don’t know _______ to go.
whether与if的辨用
• 表“是否”时，在下列情况下用whether。
• a. 主语从句 b. 表语从句 c. 同位语从句 e. 介词后的宾语从句 f.后接动词不定式 (whether to do sth.) g .whether or not 连在一起引导宾语从 句时不用if
2.注意 whether和if的使用区别
It happened that I was out that day. It is certain that he will do well in the exam. It is said that he told her everything.
注意: It looked that he was right. ( × ) 可以说: It looks as if….
It happened that they had had their military training.
•
众所周知, 比尔 ·盖茨是世界上最富有的 人. It is well-known that Bill Gates is the richest person in the world.
我们应该养成好的学习习惯这很重要. It is important that we (should) form a good habit of studying.
高考英语精 讲精练课件
名词性从句
主语从句
宾语从句
表语从句
同位语从句
1. That he will come is certain. 2. I know that he will come. 3. The truth is that I have been there.
4. The fact that she was late surprised us.
4. It turns out ( seems, happens, appears…) that… 5. It has been found (has been proved,can be seen,must be pointed out) that …
It is a pity that we can’t go swimming.