雅思阅读语法7--名词性从句

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雅思阅读名词性从句的语法知识点

雅思阅读名词性从句的语法知识点

雅思阅读名词性从句是烤鸭们必须掌握的一个知识点,下面分享了相关的定义和备考方法,大家可以参考一下。

一、名词性从句的定义和分类在句中起名词作用的句子叫做名词性从句,该从句能作为主语、宾语、表语、同位语、介词宾语等成分。

所以,相应地,名词性从句有四个分类:主语从句、宾语从句、表语从句和同位语从句。

通常从句都需要有相应的连接词,名词性从句也不例外。

常见的名词性从句连接词可以分为三类:1. 不做任何成分的连接词:that、whether/if、as if/as though;2. 连接代词:what、whatever、who、whoever、whom、whomever、whose、whosever、which、whichever;3. 连接副词:when、whenever、where、wherever、how、however、why。

二、名词性从句的用法讲解1、主语从句:主语从句就是在复合句中充当主语成分的句子。

常见的主语从句的连接词有that、whether、who、when、how等。

主语从句的时态一般不受主句时态的影响和限制。

同学们还需要注意的是英语中为了避免头重脚轻,经常会把主语从句放在后面,用一个形式主语来代替。

给大家举个例子吧:It will never be known how and when this numeration ability developed, but it is certain that numeration was well developed by the time (that) humans had formed even permanent settlements. (剑 6 Test 2 passage 3)句子结构分析:主语是it,指代后面的由两个特殊疑问词how and when引导的主语从句,谓语是will never be known,but表转折,第二个it作形式主语,指代后面的that主语从句,系动词是is,表语是certain。

新航道雅思语法 名词性从句

新航道雅思语法 名词性从句
连接词从句正常语序?从句不缺基本成分只缺状语时间地点原因方式?练14这意味着孩子在成长过程中从不为他人着想也不明白他们的幸福生活来自何处
名词性从句
• 主语从句 • 宾语从句 • 表语从句
• 同位语从句
判断
• 1. It is probable that, some time in the tenth century, black powder was first compounded from its basic ingredients of saltpetre, charcoal and sulphur. (剑3,T1,R) • 2. One advantage of being an only child is that there is less arguing within the family.
• 3. A simple analogy can help us to understand how a rocket operates. (剑 3,T1,R) • 4. There is no doubt that “crimes against the person” rise in the summer, when the weather is hotter and fall in the winter, when the weather is colder. (剑3,T3,R)
• 句型: • what/who +主语从句+ is +强调部分 • 强调部分:原句中的主语或宾语。
• 【练1/5】从火山口喷发出来的大部分是气体。 (剑4,T3,R) • _____ comes out of volcanic craters is mostly gas. • 【练2/5】 After you reach a certain point, money becomes unimportant. __________. (真正重要的是成功) • What matters is success.

新航道雅思语法名词性从句PPT课件

新航道雅思语法名词性从句PPT课件
从句过于冗长复杂,影响阅读理解,应尽量简化 表达,如“The cat that was sitting on the mat was black.”应改为“The black cat was sitting on the mat.”
THANKS
感谢观看
主语从句
定义
用作主语的从句叫做主语从句。
构成
关联词+简单句。
关联词类型
1. 陈述句用that;2. 一般疑问句用whether;3.特殊疑问句用疑问词。
注意事项
1. 主语从句不可省略;2. 主语从句不可用逗号与后面的句子分开;3. 主句主语和从句主语一致,从句可直接放在句尾,不用连接词。
宾语从句
被动语态的使用
在需要强调动作承受者时,可以使用被动语态,使句子更加 清晰明了。
05
名词性从句在雅思写作中的应用
写作中常用的名词性从句类型
主语从句
用作主语的名词性从句,如 “What he said is not true.”
宾语从句
用作宾语的名词性从句,如“I believe that climate change is real.”
引导词错误
使用了错误的引导词,如“I think that you are right, because you are always right.”应改为 “I think that you are right, because of your excellent performance.”
从句冗长复杂
新航道雅思语法名词性从 句ppt课件
• 名词性从句概述 • 名词性从句的构成 • 名词性从句的引导词 • 名词性从句的特殊用法 • 名词性从句在雅思写作中的应用

雅思写作语法英语名词性从句

雅思写作语法英语名词性从句
据说他已告诉了她一切.
It is said that he told her everything.
It is said只有 it 句型 More
注意: It looked that he was right. ( × ) 可以说: It looks as if….
用形式主语 it 的主语从句常见结构 1. It is clear (necessary, important, possible,remarkable that… 很清楚(必要, 重要,可能, 值得注意等)… 2. It is a fact (a good thing, good news…) that … 事实是 ( 好事是,好消息是…)… 3. It is well-known ( reported, recorded, estimated,said, believed) that…众所周知( 据报道,,据记载,据说,据估 计turns )… out ( seems, happens, appears…) that… 结果 4. It 是 ( 似乎是, 碰巧是, 好象是…)… 5. It has been found (has been proved,can be seen,must be pointed out) that …已发现( 已证明,可以看出,需指 出)…
doubt问题 1. I doubt if / whether he will pass the exam. 2. I don’t doubt that we will win the match. 3. Do you doubt that he did it on his own? 肯定句中用 if / whether 否定句中用 that 疑定句中用 that
他来不来没什么要紧的

名词性从句全面讲解

名词性从句全面讲解

名词性从句全面讲解名词性从句是英语中的一种从属从句,它在句中充当名词的功能。

名词性从句可以在句子中作主语、宾语、表语和同位语等,并且可以由不同的引导词引导。

本文将全面讲解名词性从句的基本概念、用法及常见的引导词。

一、名词性从句的概念名词性从句是由一个词或一个词组引导的从句,它在句子中充当名词的角色。

名词性从句通常出现在复杂的句子中,起到连接主句和从句的作用。

名词性从句的引导词有很多种类,常见的有:that, whether, if, what, which, who, whom, whose, when, where, why等。

二、名词性从句的用法名词性从句可以在句子中作不同的成分,下面分别介绍其主要用法。

1. 名词性从句作主语名词性从句可以作为主语来引导句子,常用的引导词有:- That: That he is innocent surprises me.(他是无辜的让我吃惊。

)- Whether/If: Whether he will come or not is uncertain.(他是否会来还不确定。

)- What: What you said is true.(你说的是真的。

)2. 名词性从句作宾语名词性从句可以作为宾语来引导句子,常用的引导词有:- That: I know that he is a doctor.(我知道他是个医生。

)- Whether/If: I wonder whether/if it will rain tomorrow.(我想知道明天是否会下雨。

)- What: I don't understand what he is saying.(我不明白他在说什么。

)3. 名词性从句作表语名词性从句可以作为表语来引导句子,常用的引导词有:- That: The truth is that she is not happy.(事实是她不幸福。

)- Whether/If: The question is whether/if we should go or not.(问题是我们是否应该去。

雅思语法名词性从句知识点汇总

雅思语法名词性从句知识点汇总

说道雅思语法的名词性从句,首先想问大家一个问题,那就是,什么是从句:clause:s(subject)+v(verb)一个句子都要有一个独立的从句,简单句除外。

而名词从句是一个从属句,什么意思呢?就是名词性从句不能成为一个单独的完成的句子,它只能在句子中充当一个成分(part of a sentence)。

今天我们就讲怎么用名词从句。

1、连接词(conjunction)连接名词从句的连接词到底有哪些:that、which、who、whom、whose、what、if、whether、when、where、why、how、whoever、whomever、whenever、wherever、whatever、whichever。

这是所有的连接词,有些可要谨慎使用哦~这些连接词,有的也可以连接定语从句,但是同学们在雅思语法学习时要注意“that”这个连接词。

因为当that引导从句的时候,常常被省略。

还有一些连接词既可以做连接词,也可以做从句中的主语,比如“which”“who”“what”还有“who/which/what-ever”,注意“whom”做宾语成分。

2、When to use and How to use基本来说,名词从句通常有四种用法。

1)名词性从句做主语What she wore to the party really turned some heads.名词从句:“What she wore to the party”——连接词“what” 名词从句里的主语“she”,动词“wore”。

整个句子的动词“turned”,turned前面都是主语。

名词从句充当主语成分。

Whoever wants to know should ask me.我们来找这句话的动词,两个——“wants”和“should ask“。

“wants”的主语是“whoever”,“should ask”的主语是“whoever wants to know”。

雅思写作语法英语名词性从句

雅思写作语法英语名词性从句
1. It is clear (necessary, important, possible,remarkable that… 很清楚(必要, 重要,可能, 值得注意等)…
2. It is a fact (a good thing, good news…) that … 事实是 ( 好事是,好消息是…)…
2. The question is whether w can finish the experiment by Friday. 问题在于我们能否在明天下午之前完成这项实验. 表语从句不用 if
3. It looks as if it were going to rain. as if /as though从句常表示
__w_h_e_t_h_er__/i_f_
he
is
well
or not. 5. I don’t know _w_h_e_t_h_er__ or not he is
well.
8. I don’t know _w__h_et_h_e_r to go.
doubt问题
1. I doubt if / whether he will pass the exam.
2. I don’t doubt that we will win the match.
3. Do you doubt that he did it on his own?
肯定句中用 if / whether 否定句中用 that 疑定句中用 that
1. I doubt i_f_/_w_h_e_t_h_e_rhe is telling the truth. 2. We never doubt ___t_h_a_t___ the plan will be carried out . 3. Does he doubt ___t_h_at____ you are from Austria? 4. I’m doubtful i_f_/_w__h_et_h_e_r he will agree to this.

复习 雅思语法之名词性从句

复习 雅思语法之名词性从句

宾语从句的种类
1. that引导的宾语从句 2.由if或whether引导的宾语从句 3. 由连接代词who, whom, whose, what, which和 连接副词when, where, why, how引导的宾语从句。
一、宾语从句的种类
1. that引导的宾语从句 that在口语或非正式文体中常省略。
Show time
【练1/3】我们想知道人类是否是宇宙中唯一存在 的生命。(剑桥9 test 1) 【练2/3】他来不来无关紧要。 【练3/3】 许多专家怀疑英语是否应该作为全球 唯一的官方语言。
We want to know whether we are alone in the universe. Whether he comes or not makes no difference. Many experts doubt whether English should be used as the only official language
表语从句
The news that Jay Chou has married is resounding.
同位语从句
宾语从句
1. I know him . (简单句)
主语 谓语 宾语
2. I
主语 主
know
谓语 句
who he is .
(复合句) 连词 从句主语 从句谓语
宾语从句
句子做宾语就是宾语从句
could buy lunches and dinners for a small
country, hundreds of free drug samples and
the freedom to give a physician $200 to prescribe(开药) her new product to the

雅思写作语法英语名词性从句

雅思写作语法英语名词性从句

2. 那就是他昨天缺席的原因.
That is why he was absent yesterday.
3. 这就是我们上星期碰头的地方.
This is where we met last Sunday.
This is 总是现在时 That is 表示性质 That was 指过去动作
宾语从句
宾语从句中的连接词that在以下三种情况下不 能省略:
4. 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.
5. 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. √
2. The question is whether w can finish the experiment by Friday. 问题在于我们能否在明天下午之前完成这项实验. 表语从句不用 if
3. It looks as if it were going to rain. as if /as though从句常表示
1. 真可惜我们不能去游泳.
It is a pity that we can’t go swimming.
2. 碰巧那天我外出了.
It happened that I was out that day.
happen只有 it 句型
3. 他考试肯定会考好.
It is certain that he will do well in the exam.
2. 为什么要有名词性从句? 从句表达的意思比名词复杂得多

雅思阅读长难句《剑七物语》--名词性从句

雅思阅读长难句《剑七物语》--名词性从句

雅思阅读长难句《剑七物语》--名词性从句名词性从句24. In any event, whether or not the reason is the energy expense, it seems to be the case that, with the possible exception of some weird deep-sea fish, no animal apart from man uses manufactured light to find its way about.25. What those early craftsmen had found by trial and error was that under pressure a pagoda?s loose stack of floors could be made to slither to and fro independent of one another.26. And what began as a wholly practical exercise in keeping illegal drugs out of Australia may end up playing a role in an entirely different sphere ---the comparatively esoteric world of neurobiology.27. Experiments showed that , in fact, facial vision is nothing to do with touch or the front of the face, although the sensation may be referred to the front of the face ,like the referred pain ina phantom limb.28. This means that a forest policy is vital, that it must transcend national frontiers and generations of people , and that it must allow for the inevitable changes that take place in the forests, in needs, and hence in policy.29. But the underlying mathematical theories of radar and sonar are very similar, and much of our scientific understanding of the details of what bats are doing has come from applying radar theory to them.30. MIRTP focuses on what would be most appropriate for the inhabitants of Makete in terms of what was available , how much they could afford and what they were willing to accept. 31. Vandeloo and champness assess the dogs? abilities toconcentrate by marking t hem on a scale of between one and five according to how well they remain focused on a toy tossed intoa patch of grass.32. The underlying assumption was that the time saved would be used instead for activities that would improve the social and economic development of the communities.33. And yet most of us have had the experience of having to adjust to sleeping in the mountains or the countryside because it was initially …t oo quite?, an experience that suggests that humans are capable of adapting to a wide range of noise levels.34. Lozanov?s instructional technique is based on the evidence that the connections made in the brain through unconscious processing(which he calls non-specific mental reactivity) are more durable than those made through conscious processing.35. Through meeting with the staff and satisfied students they develop the expectation that learning will be early and pleasant and that they will successfully learn several hundred words of the foreign language during the class.36. The general declaration was made that …a central place in any ecologically coherent forest policy must be given to continuity over time and to the possible effects of unforeseen events, to ensure that the full potential of those forests is maintained?.37. It would h ave been easy to criticize the MIRTP for using in the early phases a …top-down? approach, in which decisions were made by experts and officials before being handed down to communities, but it was necessary to start the process from the level of the governmental authorities of the distinct.38. Rather, they contend, it was almost certainly the result ofclimatic shifts, prompted in part by cumulative effects of the elnino?la nina phenomenon on Pacific Ocean temperatures, culminating in a harsh winter in which huge numbers of salmon eggs were frozen.39. It would be noted, however, that a donkey which at 20,000 Tanzanian shillings costs less than a bicycle, is still an investment equal to an average household?s income over half a year.40. It was once thought that the fungus that ants cultivate was a single type that they hadpropagated, essentially unchanged from the distant past.41. Landlords obviously have to agree to any changes so it is important that the contract includes details of what will be allowed and how much extra will be charged on top of the costs of rebuilding or alteration.42. Some water experts are now demanding that existing infrastructure be used in smarter ways rather than building new facilities, which is increasingly considered the potion of last, not first, resort.43. Besides the laboratory evidence for this, we know from our experience that we often remember what we have perceived peripherally, long after we have forgotten what we set out to learn.44. Just as a doctor calls on the full power of autocratic suggestion by insisting that the patient take precisely this capsule precisely three times a day before meals, Lozanov is categoric in sisting that the suggestopedic session be conducted exactly in the manner designated, by trained and accredited suggestopedic teachers.45. Although forest fires do not affect all of Europe to thesame extent, the amount of damage cause the experts to propose as the third relolution that the Strasbourg conference consider the establishmnet of a Europen databank on the subject.46. Studies carried out by Turner of many thousands of New and Old World specimens, both ancient and nodern, suggest that the majority of prehistoric Americans are linked to Northern Asian populations by crown and root traits such as incisor shovling (a scooping out on one or both surfaces of the tooth), single-rooted upper first premolars and triple-rooted lower first molars.47. Florence is one of a truly new breed: the product of what is perhaps the only project in the world dedicated to breeding dogs solely to detect drugs.48. You might say that this is a problem of their own making, one that they could avoid simply by changing theri habits and hunting by day.49. Another difference from conventional teaching is the evidence that students can regularly learn 1000 new words of a foreign language during a suggestopedic session, as well as grammar and idiom.50. That is mainly because the costs of all this damage are what economists refer to as externalities; they are outside the main transaction, which is for example producing and selling a field of wheat, and are borne directly by neither producers nor consumers.51. Florence could help neurobiologists to understand both what they call “attention processing”, the brain mechanisms that determine what a person pays attention to and for how long, and its flip side, problems such as Attention Deficit/ Hyperactivity Disorder.(ADHD).52. Darby had started a business in bristol, but he moved to Coalbrookdale in 1710 with an idea that coke derived from coal could provide a more economical alternative to charcol as a fuel forioronmaking.53. The Sonar and Radar pioneers didn?t know it then, but all the world now knows that bats, or rather natural selection working on bats, had perfected the system tens of millions of years earlier, and their “radar”achieves feats of detection and navigation that would strike an engineer dumb with admiration.54. Discussions now centers on whether the route through the maze is communicated as a “left-right” sequence of turns or as a “compass bearing and distance” message.。

复习 雅思语法之名词性从句

复习 雅思语法之名词性从句

Show me the answer
【练1/4】 该表清楚地表明了欧洲国家之间存在显著的消 费习惯差异。 (剑3,T2,W)
This chart clearly indicates that there are some significant differences in spending habits within European countries.
【练2/4】该数据显示发展中国家和发达国家之间在教 育和科技上存在着极大地差别。(剑3,T3,W)
This data shows that there are very large inconsistencies in education and science
between developing and developed countries.
宾语从句的种类
1. that引导的宾语从句 2.由if或whether引导的宾语从句 3. 由连接代词who, whom, whose, what, which和 连接副词when, where, why, how引导的宾语从句。
一、宾语从句的种类
1. that引导的宾语从句 that在口语或非正式文体中常省略。
【练3/4】我同意在医疗卫生,教育和贸易等方面的改 善对较贫困国家的发展来说是必不可少的。(剑3, T4,W)
I agree that improvements in health, education and trade are essential for the development of poorer nations.
但是,随便哪一天,对于今天的药品推销员来说,谢弗能 提供的东西都非常具有代表性—汽车后备箱里满载的促销 礼品和小器械,能够为一个小国家的午餐和晚餐买单的预 算,成千上万的免费药品样本以及可以提供给一位医生 200美元的自由权—如果该医生在开药的时候,指定将接 下来的六名与该药品吻合的患者使用她的新产品。

雅思阅读语法名词性从句

雅思阅读语法名词性从句


主语从句
No 东升求实学校教育通讯工作总结报告
Image Dongsheng Qiushi XueXiao Jiaoyu TongXun Gongzuo ZongJie
在复合句中充当主语的从句
1 that引导主语从句
that引导主语从句时不同于其他的连词;既无词义也不作成分;
只起单纯的连接作用;且通常不可以省; 为了强调that引导的主
The odds are that he will not do it
2表示某人的意见 信念等的实际内容; Our belief is that things will improve The trouble is that we are short of money
2 whether引导表语从句不可用if; His first question was whether Holmes had arrived yet The question is whether people will buy it
No 东升求实学校教育通讯工作总结报告
2 whether引导主语从句;意为是否;只起连接作用;不充当任何成分; 置于 Image Dongsheng Qiushi XueXiao Jiaoyu TongXun Gongzuo ZongJie 句首时必须用whether引导;置于句尾时;间或可用if; Whether he will win the game is not clear Whether he will come is uncertain Whether she comes or not doesn't concern me It is not clear whether/if he will come It was uncertain whether he would come

名词性从句-雅思

名词性从句-雅思
第六页,编辑于星期六:八点 二十八分。
宾语从句
从句放在及物动词后做宾语
结构: 主语+ V + that (可省略)+完整句子 用一个句子来做为一个动词的宾语,中间用 that来连接。 主语+ V + wh- 开头的词引导的句子
What , how, where, when, why, whether
e.g. It is believed that children whose mothers have received higher education have better academic performance and fewer academic problems.
第十六页,编辑于星期六:八点 二十八分。
asnmdoskoimnge asnerdiosuosmdeisseearsieosussudcihseaasseaslusnugchcaanscaer and
hlueTanrhgtedcyaisinencasesirset.atnhdathtehaertpdriascetaiscee. of censorship ( 新闻 审查) should be abolished.
suitable for the old people’s participation.
We should not help thtehaedavdevnetunrteusr,esbecause any kind
of help would ruin their pleasure of exploring.
大多数人相信,早期教育有助于孩子早期的学 术成功。 childhood education, sth. contribute to sth. else, academic success
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宾语从句
在复合句中充当宾语
1. that引导宾语从句时无含义,不充当成分,常省略。 ★that不引导介词的宾语从句,至于except that, in that, save that, but that等是 复合从属连词。 I know (that) you have met him. Let's suppose that one day this happens to you. ★在及物动词和宾语从句之间常有间接宾语(指人)。例如: I told him (that) he was wrong. ★在少数动词如:think, believe, suppose, expect, imagine, calculate, fancy, reckon, be supposed , seem, appear, feel as if, look as if, look like等后面的从 句中的否定词经常转移到主句谓语动词上,这叫否定前置/否定转移 (hope“希望”, guess“认为”后的宾语从句否定不前置。I hope not.“我希望 不是那样的”,是I hope so.的否定式。I don't hope so.是对hope的否定:“我 不希望如此”。)如: I don't think it will be very cold today. I don't think you are right. I don't believe he has finished his work.
翻译练习
【练1/3】中国教育的最大变化就是,已经有更多的人可以接受 教育。 (剑3,T1,S) 【练2/3】早上学的另一个好处是孩子在社交方面发展更快。 (剑4,G,TB,W) 【练3/3】我的观点是年轻人应该受到鼓励,去开阔视野。(剑5, T2,W)
Keys
1. The biggest change in education in China is that more and more people can get/receive the education.
5.也可用whatever,whoever,whomever,whenever,wherever等词引导主语从 句,表示“无论什么”、“无论谁”、“无论何时”、“无论在(到)哪里” 等。 Whoever told you to give up smoking was quite right. Whatever he gave you should be handed in. Whoever told you that was lying. Whoever comes is welcome.

主语从句 在复合句中充当主语的从句
1.that引导主语从句 that引导主语从句时不同于其他的连词,既无词义也不作成分, 只起单纯的连接作用,且通常不可以省。为了强调that引导的主 语从句而置之于句首时,that不可省。 ①That the driver could not control his car was obvious. ②That she was chosen made us very happy. ③That he will come is certain. ④That he would take the risk is true. ⑤That he should have married her isn't surprising.
▲it做形式主语有以下几种不同的结构: (1)It + be + 形容词+ that-从句 ①It is likely that he will come. ②It is strange that she has ever trusted him. ③It is important that he (should) attend the meeting. ④It is best that he (should) go. 此句型在表示惊讶、喜悦、遗憾等感情色彩时,that从句中的谓语动词也 常用 (should) + v原形。 It is strange that no one should have objected to the plan. (2)It + be +名词+ that-从句 It is common knowledge that the whale is not a fish. It's a pity that he should have catched the train.
2. Another advantage of going to school at an early age is that children develop faster socially. 3. My view/idea/opinion/point is that young people should be encouraged to broaden their horizons.
4. 连接副词when, where, why, how引导的表语从句。 The problem seemed how we could make him understand it. The question is where we should go. 5. as if, as though引导的表语从句(常用虚拟语气)。 He looks as if he were angry. It looks as if it's going to rain.
(3) It + be + -ed分词 + that从句 It is said that he is a famous writer. It is reported that there will be a storm this afternoon.
▲在表示建议、要求、命令等意义的被动结构中,that从句中的谓语动词 常用(should) do。(参见虚拟语气部分) It is suggested that the meeting (should) be held this afternoon. It is demanded that he (should) leave at once. (4) It + seem/happen/appear等不及物动词 + that从句。(look不接that从 句,它接to be结构或形容词) It seems that he is wrong. It appears that they are in urgent need of help. He looks (to be) surprised/happy/sad.
从句讲解之一:名词性从句
Tracey
名词性从句
在句子中起名词作用的句子叫名词从句 (Noun Clauses)。 名词从句的功能 相当于名词词组, 它在复合句中能担任主语、宾语、表语、同位语、介词宾语 等,因此根据它在句中不同的语法功能,名词从句又可分别称为主语从句、 宾语从句、表语从句和同位语从句。 引导名词性从句的连接词 引导名词性从句的连接词可分为三类: 连接词:that、whether、if不充当从句的任何成分) 连接代词:what、whatever、who、whoever、whom、whose、which. 连接副词:when、where、how、why
翻译练习
【练1/2】 It is often important that you make it clear what your particular role is at a given time. (剑3,T2,R) 【练2/2】It is an unfortunate fact that many employers may prefer to use the services of children.(剑3,T3,W)
★通常,that引导主语从句时用it做形式主语,把从句置于句 尾,此时that有时可省。例如: ①It was obvious that the driver could not control his car. ②It made us very happy that she was chosen. ③It is certain that he will come. ④It is true that he would take the risk. ⑤It isn't surprising (that) he should have married her. ★如果以that从句为主语的句子是疑问句,就只能用先行词it 结构。例如: ①Is it certain that he will come? ②Is it true that he would take the risk?
2. whether引导主语从句,意为“是否”,只起连接作用,不充当任何成分。 (置于句首时必须用whether引导,置于句尾时,间或可用if。) Whether he will win the game is not clear. Whether he will come is uncertain. Whether she comes or not doesn't concern me. It is not clear whether/if he will come. It was uncertain whether he would come. 3. 连词代词what, who, which, whose等引导的主语从句。这些连接代词作用 相当于代词,在从句中担当主语、宾语、表语、定语等。 What we need is more time. Who was responsible for the accident is not yet clear. Which school you want to go matters much.
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