表语从句 (3)
英语六种基本句型
英语的句子有6种基本结构1.主语+系动词+表语(A is B.)[例句] 哈佛是最早接受中国留学生的美国大学之一。
Harvard is among the first American universities to accept Chinese students.2.主语+及物动词+宾语(A does B.)[例句]这些传统,对今天中国人的价值观念、生活方式和中国的发展道路,具有深刻的影响。
These traditions have exerted a profound impact on the values and way of life of the Chinese people, and on China’s road of development today.3.主语+不及物动词(A leaves.)[例句]1847年,中国最早的一批留美学生容闳等人赴美求学。
In 1847, Chinese student Rong Hong and others came to the United States as the first group of Chinese students to study here.4.主语+及物动词+双宾语(间接宾语指人,直接宾语指物)(A gives B something.)[例句]昨天,我参观了国际商用机器公司、美国电话电报公司和贝尔实验室,领略了当代科技发展的前沿成就。
My visit to IBM, AT&T and the Bell laboratory yesterday gave me some first-hand knowledge of the latest successes in modern science and technology.5.主语+及物动词+复合宾语(即宾语+宾语补足语)(A tells B to do something)[例句]今天,正在为实现现代化而奋斗的中国人民,把对外开放作为一项基本国策。
表语从句练习_3_
表语从句3—高考英语语法练习一次清(一轮复习)1.It’s not smart to just do the work on our own. Reach out to friends, family and others because that's _______ they're there for.A. whyB. whatC. whenD. whom2.—The small restaurant is always crowded in every part.—That's ______ it has a unique dining environment and quite a few wonderful dishes.A. whyB. becauseC. whereD. when3.The famous player tried again and again after each failure. That's _____ he succeeded at last.A. whatB. whenC. whetherD. why4.He's as a “bellyacher”, he's always complaining about something.A. who is knownB. whom is knownC. what is knownD. which is known5.Self confidence is a kind of quality and that is it takes to do everything well.A. whyB. thatC. whatD. which6.40 grams of meat per day is ______ people should consume in order to stay fit.A. thatB. whyC. howD. what7.My brother is those big businesses will chase after as he is both creative and diligent.A. whereB. whichC. whomD. what8.Shutting doors, finishing chapters or whatever; what matters is not ________ we call it but to leave in the past those moments in life that are over.A. whatB. howC. whereD. which9.— Our country is developing at an amazing speed!—Yes. This is makes me feel so proud.A. whichB. whyC. whereD. what10.As John Lennon once said, life is ________ happens to you while you are busy making other plans.A. WhichB. thatC. whatD. where11.What Tom's parents really doubt is ________ he will recover from the serious disease soon.A. thatB. whenC. whetherD. how12.It looks you are ill. You should go to see the doctor.A. asB. whichC. as thoughD. whether13.He went to the hospital for a medical examination. And that is ______ he was absent from the meeting.A. whyB. becauseC. whetherD. what14.He's more of a talker than a doer, which is _____ he achieves nothing.A. whyB. whenC. whereD. that15.“Every time you eat a sweet, drink green tea.” This is _____ my mother used to tell me.A. whatB. howC. thatD. whether16.—What made her mother so angry?—______the exam.A. Because she didn't passB. Her not passC. That she didn't passD. Because her no passing17.The most exciting thing for him was ____ he finally succeeded in ____ seemed to be the most difficult exam to him.A. that; whatB. that; whichC. what; thatD. what; which18.She's ________ is known as a nosy person—she is always dying to know what's going on in others' lives.A. whatB. whoC. whichD. that19.— Would you like to do it at all?— I'd love to, but the question is _____it is worth doing.A. ifB. whetherC. whenD. that20.A sense of ________ is _____ it takes for a comedian to perform well in a comedy.A. humor; whatB. humorous; whatC. harmony; thatD. harmonious; that表语从句3—高考英语语法练习一次清(一轮复习)1.It’s not smart to just do the work on our own. Reach out to friends, family and others because that's _______ they're there for.A. whyB. whatC. whenD. whom 【答案】 B【解析】句意:我们自己完成任务不太明智,向朋友、亲友和其他人伸出手吧,那是他们之所以在的原因。
unit3-grammar-宾语从句与表语从句
无义 1. The mother’s question was that she has no time to look after her daughter.
是否 2.The question is whether that boy will
turn up in time.
….的样子 3. Tom is no longer what he used to be .
4. I don’t know _w__h_e_t_h__eror not he is well.
5. I don’t know _w_h__e_th__erto go.
• 由疑问词引导的宾语从句 用who, whom, what,
when, where, how, whenever等关联词引导 时,连接词在从句中担当 一定成分,具有一定的意 义,从句语序要用陈述语 序。
if / whether
1. I asked her i_f_/_w__h_e_t_h_e_rshe had a bike.
2. We’re worried about _w__h_e_t_h_e_ rhe is safe.
3. I wonder __w__h_e_t_h_e_r_/_ifhe is well.
注意2:whether / if
A. 引导宾语从句时可互换. B. 位于介词后要用whether. C. 位于句首时要用whether. D. 引导表语从句, 主语从句, 同位语
1. He asked (谁能回答这个问题) _w__h_o_c_o_u_l_d__a_n_sw__e_r_t_h_e_q_u__es_t_io_n___.
2. Do you know__w_h_o_m__t_h_ey__a_re__w_a_it_in_g__for (他们在等谁)
表语从句的常用句型
I.表语从句的常见句型1.be+that从句The fact/ point/ reality/ chance is that...2.be+疑问词从句The question/problem is whether/ when/ where/ why...3.The reason( why...) is that...4.It is because...+原因5.It is why...+结果6.My suggestion/advice/requirement/order/request is that+主语+(should)do sth.II.活学活用1.关键是你得遵守诺言,帮她学习英语。
(the point is that...)The point is that you have to keep your word to help her with her English.2.他有可能在竞赛中获得一等奖。
(the chance is that...)The chance is that he will win the first prize in the contest.3.事实是我们没有办法解决这个问题。
The fact is that we have no idea to solve the problem.4.问题是我们什么时候能打败这种传染病infectious disease。
The question is when we can defeat the infectious disease.5.这是因为许多学生沉迷网络游戏。
This is because a large number of students are addicted to online games.6.我的建议是让学生参加更多户外活动。
My suggestion is that students should take part in more outdoor activities.7.这里是鲁迅曾经住过的地方。
必修三unit3表语从句
观察思考:
指出句子成分
Henry was an American businessman. 主语 连系动词(be) ) 表语 Henry met 主语 谓语 an American businessman. 宾语
(及物动词) 及物动词)
连系动词有:be (am, is, are, was, were), 连系动词有: ) look, seem, sound, taste, appear,feel, , , smell,become,remain.等 , 等 例句: 例句:
• • • • • • • •
My opinion is that he will not agree. That is why she is so happy. It looks / seems that it is going to rain. The question is whether we can finish our work by tomorrow. The problem remains who will go . That is what he wants. That is where you were born. That is when we met each other.
小结: 小结:
1. 表语从句的构成 引导词 简单句 表语从句的构成: 引导词+简单句 2. 引导词 引导词:
{
连词that, whether, as ,as if 连词 连接代词who, what, which 连接代词 连接副词when, where, how ,why 连接副词
3. 3个注意点 ①if 不引导表语从句 个注意点: 个注意点
注意点2: 注意点 :
主句主语为reason 只能用that引导表语从句, 引导表语从句, 主句主语为reason, 只能用 引导表语从句 不能用because. 不能用
英语八大从句类型总结
英语八大从句类型总结总结就是对一个时期的学习、工作或其完成情况进行一次全面系统的回顾和分析的书面材料,它可以促使我们思考,为此我们要做好回顾,写好总结。
总结你想好怎么写了吗?下面是小编收集整理的英语八大从句类型总结,欢迎阅读与收藏。
英语八大从句类型总结11.时间状语从句(1)When---当……时候,通常指某一特定的时间点,主句与从句的动作同时发生。
(2)When---正在……的时候,突然…。
通常主句是进行时或be about to时,在翻译的时候,when可以译成没想到或突然。
(3)When当从句是进行时,主句是一般时,往往表示不满。
(4)When=after(5)While---在……期间,往往指一段时间。
(6)While---表示一种不满情绪,意思是这边在干某种重要的事,而另一边在享受等。
(7)As---一边……一边,随着(8)The moment---一……就……=as soon as,immediately,2.条件状语从句引导状语从句的连接词有:If如果,unless除非,as long as只要,As(so)far as---据……所知,incase万一,provided that假如,on condition that若是,以…为条件。
3.地点状语从句地点状语从句只有两个连词:Where,wherever。
4.原因状语从句because,as,since,now that,和considering that,seeing that这六个连词都用于表示表示原因,但在语气上一个比一个弱。
5.结果状语从句引导结果状语从句的连词有:that,so that,so…that…6.目的状语从句引导目的状语从句的主要连词有:that,so that,in order that,for fear that,lest.7. 让步状语从句引导让步状语从句的连词有:Although,though,as,even if,even though,no matter,however,whatever,while,whether。
高考英语语法突破主语从句表语从句unit3
高考英语语法突破Unit3授课课次….第3次高考英语语法突破(共十五次)授课时长….2小时/次授课内容:主语从句,表语从句(名词性从句)一.教学目标及重点1. 主语从句与表语从句的句子结构2.主语从句与表语从句引导词的运用3. that易丢,what易混, whether 与if 的区别,it作形式主语的考点二.教学难点1. 主语从句与表语从句的句子结构以及主语从句与表语从句引导词的运用。
2. 引导词的缺失或重复使用。
3. 主语从句与表语从句写作,这一部分可能学生一下子难以适应,觉得难度大了很多,要多树立学生的信心,暂时要求学生会写出句子大体框架即可,点出易错点。
三. 教学内容主语从句吕克贝松被誉为法国的斯皮尔伯格。
Luc Besson is famous as Steven Allan Spielberg of France.电影很精彩是一个事实。
That the movie is fantastic is a fact.若主语的含义用一个简单的名词或名词词组表达不出来,需要用一个句子才可以表示完整时,我们就把在主语位置上起名词作用的这个句子就称为主语从句。
1. 引导主语从句的关联词⑴以从属连词引导的主语从句①以从属连词that引导的主语从句 (主语从句部分是完整的陈述句)That English is important is an undoubted fact.That the moon itself does not give off light is common knowledge.That smoking can cause cancer is true.注:that引导主语从句置于句首时,that不可省略②以从属连词whether引导的主语从句 (主语从句部分是一般疑问句;“是否”) Whether we will go outing depends on the weather.Whether she goes abroad or not should not be decided by the parents.Whether he will come to my party makes no difference to me.注:主语从句置于句首时,不可以用if引导。
名词性从句(三)表语从句
名词性从句(三)表语从句⼀、概念表语从句,就是⽤⼀个句⼦作为表语。
说明主语是什么,放在系动词之后。
⼆、引导词连接表语从句的连接词有:that, what, who, when, where, which, why, whether, how, whoever,whichever ,whatever等。
还有如because, as if, as though等。
His suggestion is that we should stay calm.他的建议是,我们应该保持冷静。
The question is when he can arrive at the hotel.问题是,他什么时候可以到达酒店。
That’s just what I want. 这正是我想要的。
This is where our problem lies. 这就是我们的问题所在。
That is why he didn’t come to the meeting. 那就是他为什么不到会的原因。
It looks as if it is going to rain. 看上去天要下⾬了。
It is because you eat too much那是因为你吃得太多了。
三、表语从句的注意事项1. 表语从句⼀定要⽤陈述语序。
False: The question is when can he arrive at the hotel.Right: The question iswhen he can arrive at the hotel.2. if不能引导表语从句,只能⽤whether 来引导。
False: The question is if the enemy is marching towards us.Right: The question is whether the enemy is marching towards us.3. 不像宾语从句,在有表语从句的复合句中,主句时态和从句时态可以不⼀致。
名词性从句知识点总结
名词性从句(一)围绕名词性从句的连接词1、连接代词:w h o,w h o s e,w h o m,w h a t,w h i c h。
有词义,在从句中担任成分,如主语、表语、宾语、或定语等。
2、连接副词:w h e n,w h e r e,w h y,h o w。
有词义,在从句中担任成分,作状语。
3、连接词:t h a t,w h e t h e r,i f,a s i f。
t h a t无词义,在从句中不担任成分,有时可省略;i f(w h e t h e r),a s i f虽有词义,但在从句中不担任成分。
注重:1、连接代词与连接副词在句中不再是疑问句,因而从句中谓语不用疑问式。
连接代词与连接副词在从句充当句子成分,连接词w h e t h e r和i f(是否),a s i f(好象)在从句中不充当句子成分,只起连接作用。
根据句义,如果连接代词与连接副词,w h e t h e r、i f和a s i f都用不上时,才用t h a t 作连接词(t h a t本身无任何含义)。
2、不可省略的连词:(1)介词后的连词(2)围绕主语从句和同位语从句的连词不可省略。
T h a t s h e w a s c h o s e n m a d e u s v e r y h a p p y.W e h e a r d t h e n e w s t h a t o u r t e a m h a d w o n.(二)主语从句1、主语从句在复合句作主语。
e.g.W h o w i l l g o i s n o t i m p o r t a n t.2、用i t作形式主语,主语从句放在句末。
e.g.I t d o e s n’t m a t t e r s o m u c h w h e t h e r y o u w i l l c o m e o r n o t.主要句型有:(1)I t+b e+形容词+t h a t从句。
必修3-unit3-表语从句
表语从句【教学内容】表语从句【教学目标】熟练掌握表语从句的用法【教学重难点】连接词的使用【教学过程】什么是表语从句:在句中作表语的从句称为表语从句。
能引导宾语从句的连词皆可引导表语从句。
例:1.She is a girl.2.The question is who are you.(整个句子作表语)▼表语从句的连接词引导表语从句的连接词主要有以下几类:一、从属连词引导表语从句的从属连词有that和whether.that和whether在表语从句中不作任何成分,that无具体意义,whether仍有“是否”的意义。
→The reason for your mistake is (that) you lack confidence in yourself.你犯错误的原因是你本身缺乏信心。
→The question is whether we can reduce the cost of the product.问题是我们能否降低产品的成本。
注:一般不用if引导表语从句。
二、连接代词引导表语从句的连接代词主要有who(ever),whom(ever),whose(ever),what(ever),which(ever)等→This is what I am interested in.这就是我所感兴趣的。
→The doubt is who has got away with the document.疑点就是谁拿走了文件。
→Actually,girls can be whatever they want to be just like boys, whether it is a pilot, an astronaut, or a manager.实际上,女孩可以和男孩一样想从事什么职业就从事什么职业——不管是飞行员、宇航员还是总经理。
三、连接副词引导表语从句的连接副词主要有when(ever),where(ver),why,how(ever)等→That was where we can camped last time.那就是上次我们野营的地方。
表语从句详细版.ppt
B. because of his mother’s being ill
C. that his mother is ill
D. for his mother is ill
11. —He was born here.
-- That is _______ he likes the place so much.
精典名题
When a pencil is partly in a glass of water, it looks as if it _______. (NMET 95)
A. breaks B. has broken
C. were broken D. had been broken
最新.课件
8
引导词that 在表“建议,劝说,命令”的名词advice, suggestion,order,proposal,request, plan, idea 等后面的表语从句中,谓语动词用虚拟语 气“should + 动词原形
D. what
最新.课件
15
7. That is __ ___ we were late last time.
A. that
B. when C. why D.
what
8. She looked _________ she were ten
years younger.
A. that B. like C. as D. as though
to help us. 10. It seemed as if I couldn't think of the right word.
最新.课件
4
由连接代词 Who, whom, whose, which, what 和连接副词 where, how, why, when, because 引导的表语从句
英语中表语从句用法及例句总结
英语中表语从句用法及例句总结
表语从句是英语语法中的一个重要部分,它通常用来作为主语补足语,说明主语的性质、状态或者身份。
下面是关于表语从句的用法和例句总结:
1. 表语从句的引导词
表语从句通常由连接词引导,其中常见的引导词有:that, whether, if。
2. 表语从句的位置
表语从句通常位于句子的主语之后,动词之前。
3. 表语从句的功能
表语从句可以起到以下几个功能:
- 表示主语的性质或状态:The fact is that he is a very talented musician.(事实是,他是一个非常有才华的音乐家。
)
- 表示主语的感受或观点:Her belief is that everyone deserves equal rights.(她的信念是每个人都应该享有平等的权利。
)
例句:
- My hope is that he will pass the exam.(我希望他通过考试。
)- The question is whether we should go or not.(问题是我们是否应该去。
)
- Her dream is to travel around the world.(她的梦想是环游世界。
)
- The fact is that he is guilty.(事实是,他有罪。
)
以上就是关于英语中表语从句的用法及例句总结。
希望对您有帮助!
Please let me know if you need further assistance.。
3表语从句+系动词
第四讲表语从句定义表语从句定义:在一个复合句中,从句作的是主语的表语成分。
The problem is when we can get a pay rise. 问题是什么时候我们可以得到加薪.主语连系动词一个句子作表语---表语从句系动词用法定义例如:He felt ill yesterday. 他昨天病了。
(feel是(连)系动词,后跟补足语,说明主语情况。
)■连系动词be 后根据情况可自由地接不定式作表语:1).My dream is to be a scientist. 我的梦想是当一名科学家。
2).All you have to do is to listen. 你只需要听。
■ seem, appear, prove, turn out, grow 等连系动词后也可接不定式(尤其是to be)短语作表语:1).The man seemed to be ill. 这个人好像病了。
2).The plan proved to be useful. 这个计划证明是有用的。
3).He appears to know this. 他好像知道这一点。
4).The weather turned out to be fine. 天气结果很好。
5).He has grown to like studying English. 他渐渐喜欢学英语了。
若所接不定式为to be,通常可以省略be。
■ sound, smell, feel, taste, become 等连系动词后通常不能接不定式:(也可以理解为用主动表被动)误:These oranges taste to be good. (应去掉to be) 误:The roses smell to be nice. (应去掉to be)■连系动词look后有时也可接to be,但以省略to be为多。
分类二、我们高中阶段把英语系动词分为四类:A.五大感官系动词B.状态系动词C.动态系动词D.双谓语系动词A.五大感官系动词,描述一种感官性质。
凤凰国际英语基础英语语法3从句一
练习2
合并句子,改写下面的段落。
Unemployment
These days, many people lost their jobs. They become laid-off workers. Some of them lost their jobs because their companies shut down. They have nothing to do. Others lost their jobs because they can’t adapt to the competition. The competition is very fierce these days. So many people are having no job. This phenomenon will cause social instability.
添加句子对原句进行适当拓展 He left his beloved wife and his lovely daughter unexpectedly. → No one knows why he left his beloved wife and his lovely daughter unexpectedly, which even puzzles the police a great deal.
我建议我们举行一个英语晚会。 (1) I suggest our holding an English evening party. (2) I suggest that we (should) hold an English evening party. (3) My suggestion is that we (should) hold an English evening party.
英语从句(最简单通俗易懂)
从句名词性从句:就是这个些从句的作用,相当于一个名词,按作用分类分成:主语从句、宾语从句、表语从句、同位语从句。
一、主语从句(名词性从句):引导词:1、that:万能词2、whether:是否,能否(表示怀疑)3、what:什么,……的东西4、whatever:无论……5、who:谁,(指人)6、whoever:无论谁,任何人7、which:那一个,指代前提提到的东西 8、wichever:无论哪一个9、whose:谁的(所有格)10、whom:谁(who的宾格)11、whomever:无论谁,任何人(whoever的宾格)12、how:怎样,用什么方式13、why:为什么14、when:当……时候(表示时间)15、where:在……地点(表示地点)学习心得:从句在复合句中做主语,翻译的时候把一句话,就当一个名词来翻译二、宾语从句(名词性从句):引导词:1、that:万能词(无意思,只是符号,有的时候会省略)2、who:谁,(指人)3、why:为什么4、when:当……时候(表示时间)5、which:那一个,指代前提提到的东西6、what:什么,……的东西7、how:怎样,用什么方式8、whether:是否,能否(表示怀疑)9、if:如果(表示假设)注:放在非谓语动词(动名词)后面的句子也叫做宾语从句。
如:knowing that………………………………三、表语从句(名词性从句):引导词:1、that:万能词2、whether:是否,能否(表示怀疑)3、what:什么,……的东西4、whatever:无论……5、who:谁,(指人)6、whoever:无论谁,任何人7、which:那一个,指代前提提到的东西 8、wichever:无论哪一个9、whose:谁的(所有格)10、whom:谁(who的宾格)11、whomever:无论谁,任何人(whoever的宾格)12、how:怎样,(表示方式)13、why:为什么(表示原因)14、when:当……时候(表示时间)15、where:在……地点(表示地点)16、as if:好像,似乎(表示可能)17、as though:好像,仿佛(表示可能)学习心得:用句子表示名词,在句中做表语,引导词跟主语从句一样.四、同位语从句(名词性从句):引导词:1、that:无词义(就是个符号)同位语从句:就是一个句子中名词,后面出现一个名词,或者是句子。
考研英语语法:学会辨认六类从句
考研英语语法:学会辨认六类从句从句类型在英语中,经常使用的从句有以下六类:1. 主语从句:一个句子在整个句子中充当主语的成分,该句子被称为主语从句。
2. 宾语从句:一个句子在整个句子中充当宾语的成分,该句子被称为宾语从句。
3. 表语从句:一个句子在整个句子中充当表语的成分,该句子被称为表语从句。
4. 定语从句:一个句子在整个句子中充当定语的成分,该句子被称为定语从句。
5. 状语从句:一个句子在整个句子中充当状语的成分,该句子被称为状语从句。
6. 同位语从句:一个句子在整个句子中充当同位语的成分,该句子被称为同位语从句。
►从句的辨认如果想辨认从句类型,学生们应该对从句的基本形式有所认识。
无论是哪种从句类型,在句子中充当成分的"句子"应该都具备以下特征:从句=从属连词+句子了解了从句的基本结构,那么应该如何辨别从句类型呢?学生可以在句子中通过简单的公式进行辨认。
常见的从句出现形式有四类:1. 名词+从属连词+句子=定语从句/同位语从句2. 动词+从属连词+句子=宾语从句/表语从句3. ×+从属连词+句子=状语从句4. 从属连词+句子+动词=主语从句对于以上四类从句出现形式有了一定的了解,那么今天就首先看看第一类从句出现形式的辨认方法和注意事项吧!1. 名词+从属连词+句子=定语从句/同位语从句例子1:Yet, being friendly is a virtue that many Americans value highly and expect from both neighbors and strangers.(1997年Text2)从句类型:定语从句辨别方式:a virtue(名词)+that(从属连词)+many Americans value highly and expect from both neighbors and strangers(句子)译文:然而,表示友好是一种美德,美国人高度重视这种美德,并期望邻居和陌生人都能有这种美德。
英语知识点之wherebe句型三
英语知识点之wherebe句型三英语知识点之wherebe句型 2英语中最常使用的句型包括where句型、too句型、seem 句型、prefer句型、when句型、as句型、wish句型、would rather句型、before句型以及一些强调句型、表相差的句型等等。
下面小编就给大家讲解一下where句型,供同学们查看了解。
where句型(1) where 引导的定语从句例:This is the house where he lived last year. 这就是他去年住过的房子。
(2) where 引导的状语从句例:Where there is a will,there is a way.有志者事竟成。
He left his key where he could find.他将钥匙放在易找到的'地方。
I will go where I want to go.我要去我想去的地方。
(3) where 引导的表语从句例:This is where you are wrong. 这正是你错的地方。
注:引导状语从句的where= 介词+the place where (定语从句)例:Go where(ver) you are most needed.到最需要你的地方去。
英语知识点之wherebe句型(扩展3)——中考复习英语知识点之句型梳理实用1篇中考复习英语知识点之句型梳理 1一、一般疑问句(1)一般疑问句的肯定形式一般疑问句一般是指以助动词、情态动词、be动词或have(有)开始,通常要求以yes,或no来回答的疑问句,一般疑问句读时通常用升调。
Do you know Mr. Smith? 你认识史密斯先生吗?Can you swim? 你会游泳吗?(2)一般疑问句的否定结构① 在一般疑问句的否定结构中,把副词not放在一般疑问句的主语之后。
但如果用not的简略形式-n’t,则须将-n’t与一般疑问句句首的be, have,助动词或情态动词写在一起。
表语从句(PPT)3-3
• 表语从句放在连系动词之后,充当 复合句中的表语。
The question is who will do it.
系动词 表语从句
消失,那么灾难过后,为什么地球没有恢复到原来恐龙时期的气候环境呢?突发的灾难会使地球的植物的个子突然变小,突发的灾难也会导致整个地球植物 分布有一个很大变化。可科学家在这化石的发现与突发的灾难不吻合。科学家在植物化石的发现是缓慢的过程,而不是突然的变化。 [] 如果是月球在白垩期 末期进入到现在的; 股票知识:https:// ; 位置,从环境改变来解析恐龙消失的原因。更能合理的解释当时地球上发生的事情。 [] 恐龙 孵蛋玉米(Zea mays L.)是禾本科的一年生草本植物 [] 。又名苞谷、苞米棒子、玉蜀黍、珍珠米等 [] 。原产于中美洲和南美洲,它是世界重要的粮食作物, 广泛分布于美国、中国、巴西和其他国家。 [] 玉米与传统的水稻、小麦等粮食作物相比,玉米具有很强的耐旱性、耐寒性、耐贫瘠性以及极好的环境适应性。 玉米的营养价值较高,是优良的粮食作物。作为中国的高产粮食作物,玉米是畜牧业、养殖业、水产养殖业等的重要饲料来源,也是食品、医疗卫生、轻工 业、化工业等的不可或缺的原料之一。 [] 由于玉米资源极为丰富、廉价且易于获得,它们还具有许多生物活性,如抗氧化、抗肿瘤、降血糖、提高免疫力和 抑菌杀菌等,其具有广阔的开发及应用前景。 [] 8年8月,财政部、农业农村部、银保监会印发通知,将玉米作物制种纳入中央财政农业保险保险费补贴目录。 [] 8年,中国玉米产量万吨 [] 。 历史渊源文史知识人物故事 玉米起源的那点事儿--8 : 关于玉米起源,目前的三种研究手段都给出了自己的认识和贡献:基 因考古研究一针见血、不容置喙地指出了起源时间、地点和祖本,但却留下了大量空白需要植物考古学材料的填补。...详情 内容来自 中文学名 玉米 拉丁学 名Zea mays Linn. 别 称 包谷、包芦、玉茭、苞米、棒子、粟米、玉蜀黍、玉茭、玉麦、芦黍 二名法Zea mays 界 植物界 门被子植物门 亚 门被子植物亚门 纲单子叶植物纲 目禾本目 科 禾本科 亚 科黍亚科 族玉蜀黍族 属玉蜀黍属 种 玉米 分布区域 中国黄河以北地区居多 英文名corn 特 点雌雄同株异花 世界分布 区域 全世界热带和温带地区 生长季节 夏季 目录 形态特征 物理特性 分布范围 品种类型 种植技术 ? 选用优良品种 ? 定苗 ? 土肥水管理 ? 病虫草害防治 ? 适时收获 主要价值 ? 营养价值 ? 用价值 ? 其他价值 加工应用 ? 玉米淀粉 ? 玉米蛋白粉 ? 玉米胚芽制油 ?
英语所有从句大全
英语从句大全1)表语从句1.定义:用作表语的从句叫做表语从句。
2.构成:关联词+简单句3.引导表语从句的关联词的种类:(1)从属连词that.如:The trouble is that I have lost his address.麻烦是我把他的地址丢了。
(2)从属连词whether,as,as if.如:He looked just as he had looked ten years before.他看起来还与十年前一样。
The question is whether they will be able to help us.问题是他们是否能帮我们。
注:从属连词if一般不用来引导表语从句,但as if却可引导表语从句,如:All this was over twenty years ago,but it’s as if it was only yesterday.这都是20多年前的事了,但宛如昨天一样。
能跟表语从句的谓语动词一般为系动词be,seem,look等。
如:It looked as if it was going to rain.看起来天要下雨了。
(3)连接代词who,whom,whose,what,which,whoever,whatever,whichever连接副词where,when,how,why.如:The problem is who we can get to replace her.问题是我们能找到谁去替换她呢。
The question is how he did it.问题是他是如何做此事的。
That was what she did this morning on reaching the attic.那就是她今晨上了阁楼干的。
解释:1.连词because可引导表语从句。
如:I think it is because you are doing too much.我想这是因为你做得太多。
高中英语语法知识点
高中英语语法知识点对知识的渴求是人类的自然意向,任何头脑健全的人都会为获取知识而不惜一切。
下面小编给大家分享一些高中英语语法知识,希望能够帮助大家,欢迎阅读!高中英语语法知识1定语从句一、关系代词引导的定语从句1、that 指人或物在从句中作主语,宾语或表语which 指物在从句中作主语,宾语或表语(作宾语时可以省略)who 指人在从句中作主语,宾语或表语whom 指人在从句中作宾语whose 指人或物在从句中作定语as 指人或物在从句中作主语,宾语或表语but 指人或物在从句中作主语,宾语或表语注意:指物时,whose+名词=the+名词+of which或of which+the+名词2、as 的用法(1)常用于下列结构:such…as; so…as;the same…as; as…as注意:the same…as 表示同一类,不同一个the same…that 表示同一个(2)as与which的区别a、位置不同as可放在主句后,主句前或主句中间;which只能放在主句后。
b、as起连接作用,表达说话人的观点、看法,并指出主句内容的根据或出处,意为“正如,正像”。
Which相当于并列句,可以用and this来代替,意为“这一点,这件事’”。
注意:as常用于下列结构:as we know/ as is known to all, as we all can see, as has been said before/above,as might be excepted, as is often the case, 一般不能用which代替as。
c、在从句中作主语时,which既可作系动词be的主语也可作实义动词的主语,而as只可作系动词be的主语。
二、只用that不用which的情况1、.先行词为all , much, everything, nothing , something ,anything, nothing, none, the one等不定代词时2、先行词被only, any, few, little, no , all, just , very ,right等修饰时.3、当先行词是最高级或被形容词最高级修饰时。
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表语从句的基本用法
名词性从句在be等系动词后作表语时被称为表语从句,例如: The problem is how we can get the things we need.问题是我们怎样能弄到我们需要的东西。
(how 在表语从句中充当方式状语)// The scissors are not what I need. 这把剪刀不是我所需要的。
(what 在表语从句中充当宾语)// What I told him was that I would find him a good play. 我告诉他的是我会给他找个好剧本。
(what在主语从句中作直接宾语, that作为表语从句的引导词在该表语从句中不充当句子成分,不能省略)// That is what I want to tell you.那就是我想要对你讲的。
(what在表语从句中充当直接宾语)// That is why she failed to pass the exam. 那就是她考试不及格的原因。
(why 在表语从句中充当原因状语)
注意:“That is why...”是常用句型,意为“这就是……的原因/因此……”,其中why引导的名词性从句在句中作表语,该句型通常用于针对前面已经说明过的原因进行总结,又如: That is why you see this old woman before you know, Jeanne. 珍妮,这就是现在这个老太婆出现在你面前的原因。
(前文提到Jeanne对老妇人显得苍老憔悴深感诧异,说话人对她讲述了其中的原因之后,用这一句来进行概括)。
// That is why I came.
这就是我来的原因。
下面是两个与“That is why...”形式相似的结构,它们与“That is why...”结构
之间的关系要能够辨析清楚:
(1)“That is why...”与“That is the reason why...”同义,只不过从语法结构上讲,“That is the reason why...”中why引导的是—个定语从句,将其中的the reason 去掉则与“That is why...”结构一样,例如:
That is (the reason) why I cannot agree. 这就是我不能同意的理由。
(2)“That is because...”句型中从属连词because引导的名词性从句在此作表语,这也是个常用句型,意为“这就是为什么……/因为……”。
“That is because...”与“That is why...”之间的不同在于“That is because...”指原因或理由,“That is why...”则指由于各种原因所造成的后果,例如:
He did not see the film last night. That is because he had to help his little sister with her homework.昨天晚上他没有去看电影,那是因为他得帮助他的妹妹做作业。
(第一句话说明结果,第二句话说明原因)
He had seen the film before. That is why he did not see it last night.他以前曾看过那部电影,因此他昨天晚上没有去看。
(第一句话说明原因,第二句话说明结果)
[考题1] The traditional view is ____ we sleep because our brain is
“programmed” to make us do so. (2007上海)
A. when
B. why
C. whether
D. that
[答案] D
[解析]下划线处之后是包含一个原因状语从句的表语从句,如果看不出它是充当整个句子结构的表语从句将难以把握整个句子的意思。
因此,应选择可引导名词性从句且不
充当任何成分的that。
[考题2] You are saying that everyone should be equal, and this is ____ I disagree.
(2004)
A. why
B. where
C. what
D. how
[答案] B
[解析]下划线处的引导词引导系动词is后的表语从句并在该表语从句中充当地点状语(“disagree”属于不及物动词,“I disagree”本身是完整的主谓结构),下划线应填入引导词where,表语从句“where I disagree”的意思是“我不同意之处、我不同意的
地方”。
[考题3]— I drove to Zhuhai for the air show last week.
— Is that ____ you had a few days off? (1999)
A. why
B. when
C. what
D. where
[答案] A
[解析]下划线处的引导词引导与系动词is连用的表语从句并在该表语从句中充当原因状语,下划线应填入表示“因此……”(指因某种原因所造成的结果)的引导词why。
[考题4]____ she couldn’t understand was ____ fewer and fewer students showed
interest in her lessons. (2000上海)
A. What; why
B. That; what
C. What; because
D. Why; that
[答案] A
[解析]第一个下划线处的引导词引导主语从句并在该主语从句中充当宾语,特指她所不理解的事情,应填入关系代词型的引导词what;第二个下划线处表示“因此……”(指因某种原因所造成的后果,由why引导对应的名词性从句)而不是“为什么……”(指原因、理由,由because引导对应的名词性从句),应填入引导词why。
[考题5] ____ made the school proud was ____ more than 90% of the students had been admitted to key universities. (2003上海春)
A. What; because
B. What; that
C. That; what
D. That; because
[答案] B
[解析]第一个下划线处的引导词引导主语从句并在该主语从句中充当主语,特指令校方骄傲的事情,应选用关系代词型的引导词what;第二个下划线处引导表语从句表示原因、理由,应由that引导对应的名词性从句。
[考题6]—Are you still thinking about yesterday’s game?
—Oh, that’s ____. (2003北京春)
A. what makes me feel excited
B. whatever I feel excited about
C. how I feel about it
D. when I feel excited
[答案] A
[解析] A选项的意思是“令我感觉激动的事物”; B选项的意思是“我觉得激动的任何事物”; C选项的意思是“我对它感觉的方式”; D选项的意思是“令我感觉激动的时间”。
四个选项中A最适合跟代表“game”的主语that对应,充当表语从句。