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高中一年级英语

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  • 改错题
    单句改错 
    下列句子中各有一处错误,请指出并改正(每处限改一词).
    1. Hundreds of people crowded in the church for the wedding.                       
    2. There remain a certain doubt among the people as to the practical value of the project.                   
    3. There is a real danger which the US will not keep its position on the world economic stage if
    the bad situation continues to go on.                        
    4. Rather than to waste his time in chatting or playing games on the Internet, Bob borrowed lots
    of books to read in the summer holidays.                        
    5. What she won the champion of the Winter Olympic Games made us excited.                        
    6. If you want to study the nature of the universe, first of all, you must get hang of the origin of it.             
    7. It is required that every salesgirl should treat customers with a warm and friendly
    manner.                 
    8. The children mustn't be tired----- they just have covered
    two miles.                       
    9. Tom, you must make an apology to your mother. I won't have you speak to her like
    that.                  
    10. The children watched amazing as the fireworks set off and formed all kinds of beautiful
    designs in the sky.                            
    本题信息:2012年吉林省期中题英语改错题难度一般 来源:谢雪莲
  • 本题答案
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本试题 “单句改错 下列句子中各有一处错误,请指出并改正(每处限改一词).1. Hundreds of people crowded in the church for the wedding. 2. There remain a certain d...” 主要考查您对

定冠词

形容词

介词和介词短语

系动词

情态动词

现在分词

限制性定语从句

主语从句

等考点的理解。关于这些考点您可以点击下面的选项卡查看详细档案。
  • 定冠词
  • 形容词
  • 介词和介词短语
  • 系动词
  • 情态动词
  • 现在分词
  • 限制性定语从句
  • 主语从句

定冠词的定义:

定冠词the 有this,that,these,those等意义,但较弱,用于单数或复数名词前,主要用来特指,使一个或几个事物区别于所有其他同名的事物。
定冠词通常位于名词或名词修饰语前,但放在both、all、double、half、twice等词之后。
如:All the students in the class went out.班里所有的学生都出去了。


定冠词的用法:

1、表示特指:
如:Look! A car has stopped there. The car is beautiful.  瞧,有辆汽车在那儿停下了。那辆汽车可真漂亮。
       Why not ask the teacher? 为什么不问问老师?
2、与单数可数名词连用表类别:
如:I hate the telephone. 我讨厌电话。 
       The cobra is dangerous. 眼镜蛇是危险的。
3、与某些形容词连用表示类别:
如:The rich are not always happier than the poor. 富人并不总是比穷人过得开心。
Theoldaremorelikelytocatchcoldthantheyoung.老年人比年轻人容易感冒。
4、用于独一无二的事物名词前:
如:The earth goes around the sun. 地球绕着太阳转。
        The sky was blue and clear. 天空清澈湛蓝。
5、用于方向或方位等名词前:
如:He looked towards the east. 他朝东望。
        Turn to the right at the second crossing. 在第二十字路口向右拐。
6、用于序数词或形容词的最高级前:
如:You will be the second to speak. 你第二个发言。
        Autumn is the best season here. 秋季是这里最好的季节。
7、用于乐器名词前表示演奏:
如:He plays the piano very well. 他的钢琴弹得很好。
:若不是从演奏角度来考虑,而是考虑乐器的实体,则不一定用定冠词:
He bought a piano for his son. 他为儿子买了部钢琴。


定冠词与不定冠词互换用法比较:

1、在形容词最高级前一般加定冠词。但有时却用不定冠词,这时它不表示“最”的意思,而表示“非常”“很”的意思。
如:This is the most important question of all. 这是所有问题中最重要的一个。
        This is a most important question.  这时一个非常重要的问题。
2、在序数词前加定冠词,表示“第几”;加不定冠词则表示“又”“再”。
如:Will you be the firse to read the text? 你第一个读课文好吗?
         Will you have a second try? 你再试一次好吗?
3、在有些短语中,用定冠词和不定冠词一样。
如:The number of our school students is about 1500. 我校学生人数约为1500人。


定冠词的用法口诀:

特指双熟悉,上文已提及;
世上独无二,序数最高级;
某些专有名,习语及乐器。
以上口诀归纳了用定冠词的一般情况,即:
①特指某些人或物  
②谈话双方都熟悉的人或事  
③上文已经提到的人或事  
④世界上独一无二的事物前  
⑤序数词回形容词最高级前  
⑥某些专有名词前  
⑦一些习惯短语(如:intheday等)中和乐器前(如:playtheviolin/piano)。


定冠词知识体系:


定冠词用法拓展:

1、用于姓氏的复数前,表示全家人或全家中两个或两个以上的人:
如:The Browns live next to us. 布朗一家就住在我们隔壁。
        The Greens have no Children. 格林夫妇没有小孩。
2、用来代替前面已提到的人的身体部位或衣着等的一部分:
如:He hit me in the face. 他打我的脸。
        He caught the thief by the collar. 他抓住小偷的衣领。
3、用于逢整十数词的复数名词前,指世纪中的年代或人的约略年岁:
如:He began to learn French in his fifties. 他五十多岁开始学习法语。
        He went to Japan with his family in the sixties. 他在60年代带家人去了日本。
4、用于某些单数可数名词前,使意义抽象化,指其属性或功能等:
如:This colour is pleasant to the eye. 这颜色悦目。
        He is fond of the bottle. 他喜欢喝酒。
5、表示计算单位,含有a, each, per 之类的意义:
如:He is paid by the hour (piece). 他拿计时(件)工资。
        It sells at two dollars the pound. 这东西每磅卖两美元。
6、用于人名前,或特指、或比喻、或指其作品等;用于某些产品的名称前,指产品:
如:He likes the Picasso. 他喜欢毕加索的画。
        Lu Xun has been known as the Gorky of China. 鲁迅人称中国的高尔基。
7、用于江、(运)河、海、洋以及山脉、群岛、半岛、海岛、海峡、沙漠等名称的前:
如:the Chang jiang River 长江  
        the Pacific(Ocean) 太平洋 
        the Suez(Canal) 苏伊士运河
①关于湖名前是否用冠词通常要分两种情况:
中国的湖名在英译时,其前通常加定冠词:
the West Lake 西湖,the Dong ting Lake洞庭湖。
而外国的湖名前,多数不加定冠词,少数加定冠词,视习惯而定:
Lake Success 成功湖,the Lake of Geneva日内瓦湖 
②山名的构成有两种方式:
若用于“山名+Mountains”,其前常用定冠词:the Jing gang Mountains 井冈山;
若用于“Mount/Mt+山名”,则通常不用冠词:Mount Tai 泰山。
另外,若不出现mountain一词时,则通常要用冠词:theAlps阿尔卑斯山。
8、用于由普通名词或含有普通名词构成的专有名词 (如国名、地名、政党、团体、组织机构以及旅馆、商店、学校、医院、文娱场所、建筑物等)前:
如:the United Nations 联合国  
        the People's Republic of China  中华人民共和国   
        the National People's Congress 全国人民代表大会
注:大学名称的构成要注意以下情况:
①对于以地名命名的大学,通常有两种形式 (注意冠词的有无):
如:the University of London / London University  伦敦大学
②对于以人名命名的大学,通常只有一种表达(不用冠词):
如:Yale University 耶鲁大学  
        Brown University  布朗大学


形容词的概念:

形容词(adjective),简称adj.或a,形容词用来修饰名词或代词,表示人或事物的性质、状态,和特征的程度好坏与否,形容词在句中作定语、表语、宾语补足语。通常,可将形容词分成性质形容词和叙述形容词两类,其位置不一定都放在名词前面。


形容词的作用与位置:

形容词是用来修饰名词的,常被放在名词前作定语,或放在系动词后面作表语。以下属几种特殊情况,须牢记;
(1)形容词短语作定语,定语后置。
如:a language difficult to master,
        a leaning tower about 180 feet high
(2)表语形容词(afraid、alike、alone、asleep、awake、alive等)作定语,定语后置。如a man alive。有些表身体健康状况的形容词如well、faint、ill只作表语。sick既可作表语又可作定语,ill如作定语意为“bad”。
(3)用作定语,修饰由不定代词one、no、any、some和every构成的复合词如anything、something等时,通常后置。
如:I have something important to tell you.
(4)else常用作疑问代词和不定代词的后置定语。
(5)enough、nearby修饰名词前置或后置,程度副词一般位于形容词、副词前面,enough修饰形容词、副词时,必须后置。
(6)几个并列的形容词作定语,其语序通常为:限定语(The、A)+描绘性形容词+size(大小)+shape(形状)+age(年龄、时间)+color(颜色)+origin(国籍、来源)+material(材料)+purpose(目的)+名词。

口诀:
限定描绘大长高,形状年龄和新老;颜色国籍跟材料,作用类别往后靠。
如:a heavy black Chinese steel umbrella,
        the man's first tow interesting little red French oil paintings


形容词的用法:

1、形容词修饰名词,说明事物或人的性质或特征。通常,可将形容词分成性质形容词和叙述形容词两类,其位置不一定都放在名词前面:
1)直接说明事物的性质或特征的形容词是性质形容词,它有级的变化,可以用程度副词修饰,在句中可作定语、表语和补语。例如:hot热的。
2)叙述形容词只能作表语,所以又称为表语形容词。这类形容词没有级的变化,也不可用程度副词修饰。
大多数以a开头的形容词都属于这一类。例如:
afraid害怕的。(错)Heisanillman. (对)Themanisill. (错)Sheisanafraidgirl. (对)Thegirlisafraid.
这类词还有:well,unwell,ill,faint,afraid,alike,alive,alone,asleep,awake等。
3)形容词作定语修饰名词时,要放在名词的前边。但是如果形容词修饰以-thing为字尾的词语时,要放在这些词之后。例如:somethingnice

2、用形容词表示类别和整体:
1)某些形容词加上定冠词可以泛指一类人,与谓语动词的复数连接。如:the dead,the living,the rich,the poor,the blind,the hungry The poorarelosinghope.穷人失去了希望。
2)有关国家和民族的形容词加上定冠词指这个民族的整体,与动词的复数连用。如:the British,the English,the French,the Chinese. The English have wonderful senseofhumor.

以-ly结尾的形容词:
1)大部分形容词加-ly可构成副词。但friendly,deadly,lovely,lonely,likely,lively,ugly,brotherly,仍为形容词。改错:
如:(错)She sang lovely.
        (错)He spoke to me very friendly.
        (对)Her singing was lovely.
        (对)He spoke to me in a very friendly way.
2)有些以-ly结尾既为形容词,也为副词。 daily,weekly,monthly,yearly,early .
如:The Times is a daily paper. 
        The Times is published daily.


形容词知识体系:

 


复合形容词的构成

(1)形容词+名词+ed:
          如:kind-hearted 好心的,white-haired 白发的
(2)形容词+形容词:
          如:red-hot 炽热的,dark-blue 深蓝的
(3)形容词+现在分词:
          如:good-looking 好看的,easy-going 随和的
(4)副词+现在分词:
          如:hard-working 勤劳的,fast-moving 快速转动的
(5)副词+过去分词:
          如:hard-won 得来不易的,newly-made 新建的
(6)名词+形容词:
          如:life-long 终生的,world-famous 世界闻名的
(7)名词+现在分词:
          如:peace-loving 爱好和平的,fun-loving 爱开玩笑的
(8)名词+过去分词:
          如:snow-covered 白雪覆盖的,hand-made 手工的
(9)数词+名词+ed:
          如:four-storeyed 4层楼的,three-legged 3条腿的
(10)数词+名词(名词用单数):
          如:ten-year 10年的,  two-man 两人的


介词和介词短语的概念:

介词是一种用来表示词与词、词与句之间的关系的虚词,在句中不能单独作句子成分。介词后面一般有名词、代词或相当于名词的其他词类,短语或从句作它的宾语。介词和它的宾语构成介词词组,在句中作状语,表语,补语或介词宾语。介词可以分为时间介词、地点介词、方式介词和其他介词。


误用介词的三种情况:

1、多用介词:
多用介词可能是受汉语意思的影响将及物动词误用作不及物动词,也可能是受相关结构的影响而用错:
误:We discussed about the plan.
正:We discussed the plan. 我们讨论了计划。
误:Did he mention about the accident?
正:Did he mention the accident? 他提到那次事故了吗?
误:I saw her enter into the bank.
正:I saw her enter the bank. 我看见她进了银行。
误:He married with[to] a nurse.
正:He married a nurse. 他同一位护士结了婚。
误:How can contact with you?
正:How can contact you? 我怎么与你联系?
误:We should serve for the people heart and soul.
正:We should serve the people heart and soul. 我们应该全心全意地为人民服务。
误:Who controls over the factory? (但名词control可接over)
正:Who controls the factory? 谁管理这个工厂?
误:He has a great many of friends here. (比较a great number of)
正:He has a great many friends here. 他在这儿有很多朋友。

2、漏用介词:
漏用介词可能是受汉语意思的影响将不及物动词误用作及物动词,或是受相关结构的影响的影响而用错等:
误:This matter is difficult to deal. (deal with=处理)
正:This matter is difficult to deal with. 这事很难处理。
误:He is not a man to be depended.
正:He is not a man to be depended on. 他不是个可靠的人。
误:He took a cup of tea, and went on the story.
正:He took a cup of tea, and wentonwiththestory.他喝了一口茶,又接着讲故事。
误:My mother still regards me a child. (比较consider…as中的as可省略)
正:My mother still regards me as a child. 我母亲还把我当小孩看。
误:They insisted sending a car over to fetch us.
正:They insisted on sending a car over to fetch us.他们坚持要派车来接我们。
误:What he says is worth listening.
正:What he said is worth listening to.他的话值得一听。

3、错用介词:
错用介词的情况比较复杂,可能是因受汉语意思的而错,也可能是因弄不清搭配关系而错,可能是混淆用法而错,也可能是受相关结构的影响而错,可能是忽略语境而错,也可能是想当然的用错:
误:She called on his office yesterday. (call on+人,call at+地点)
正:She called at his office yesterday. 她昨天去了他办公室拜访。
误:He is engaged with a nurse.
正:He is engaged to a nurse.他与一位护士订了婚。
误:The sun rises from the east.
正:The sun rises in the east.太阳从东方升起。
误:Under his help, I finished it in time.
正:With his help, I finished it in time. 在他的帮助下,我及时做完了。
误:During he was in Japan, he visited many places.
正:During his stay in Japan, he visited many places.他在日本期间,参观过许多地方。
误:We are familiar to his character.
正:We are familiar with his character.我们了解他的性格。
误:Help yourself with the fruit.
正:Help yourself to the fruit.吃点水果吧。


介词的宾语:

 1、名词或代词作介词宾语:
如:Are you interested in history? 你对历史感兴趣吗?
        Don't worry about it. 别为它担心。
注:若是人称代词用作介词宾语,要注意用宾格。
如:No one can sing like her. 没有人能像她那样唱歌。(不能用like she)
2、动名词作介词宾语:
如:He is good at telling stories. 他善于讲故事。 
        In crossing the street he was run over. 他在穿过马路时被汽车撞倒。
3、过去分词作介词宾语:
如:We can't regard the matter as settled. 我们不能认为这事已经解决。
        I take it for granted you have read the book. 我以为你读过这本书。
:过去分词用作介词宾语通常只见于某些固定结构中,如上面第1句涉及regard…as(认为…是)结构,第2句涉及take sth for granted(认为某事属实)。在其他情况下,介词后通常不直接跟过去分词作宾语,若语义上需要接过去分词(表被动),可换用“being+过去分词”:
如:He went out without being seen by the others.他出去了,没有被其他人看见。
4、从句作介词宾语:
如:He was not satisfied with what she said. 他对她说的不满意。
        I'm worried about where he is. 我担心他上哪儿去了。
:介词后通常不接that从句,遇此情况需考虑用其他结构:
误:He paid no attention to that she was poor.
正:He paid no attention to the fact that she was poor. 他根本不注意她很穷这一事实。
但有个别介词(如except)可接that从句。
比较:I know nothing about him except that he lives next door./I know nothing about him except for the fact that he lives next door. 我只知道他住在隔壁,其它的就不知道了。
5、不定式作介词宾语:
如:I had no choice but to wait. 除了等,我没有别的选择。 
       He wanted nothing but to stay there. 他只想留在那儿。
       They did nothing but complain. 他们老是一个劲地抱怨。 
       He never did anything but watch TV. 除了看电视,他从不干任何事。
:(1)介词后接不定式的情形通常只见于but, except等极个别个词。该不定式有时带to,有时不带to,其区别是:若其前出现了动词do,其后的不定式通常不带to;
若其前没有出现动词do,则其后的不定式通常带to。 
(2)介词后虽然通常不直接跟不定式作宾语,但却可接“连接代词(副词)+不定式”结构:
如:He gave me some advice on how to do it. 对于如何做这事他给我提了些建议。
6、形容词作介词宾语:
如:Her pronunciation is far from perfect. 她的语音远不是完美的。
        In short, we must be prepared. 总而言之,我们要有准备。
        Things have gone from bad to worse. 事情越来越糟。
:(1)有些形容词用作介词宾语可视为其前省略了动名词being:
如:He regarded the situationas(being) serious. 他认为形势严重。
        His work is far from(being) satisfactory. 他的工作丝毫不令人满意。 
(2)有些“介词+形容词”的结构已构成固定搭配:in full全部地,全面地,无省略地; in private私下地,秘密地; in particular特别地;in general一般地,通常地,概括地; in brief 简言之;in short总之,简言之; in vain徒然地,徒劳无益地;for fee免费地,无偿地; for certain肯定地,确切地;for sure肯定地,确切地; for short为了简短,简称;atl arge自由自在地,逍遥法外; by far…得多
7、副词作介词宾语:
如:I can't stay for long. 我不能久呆。 
        It's too hot in here. 这里面太热了。
        I looked every where except there. 除了那儿,我到处都看过了。
8、数词作介词宾语:
如:The city has a population of four million. 这座城市有四百万人口。
        He was among the first to arrive. 他是第一批到的。
9、介词短语作介词宾语:
如:Choose a book from among these. 从这些书中选一本吧。
        I saw her from across the street. 我从街的对面望见了她。
:通常可后接介词短语作宾语的介词是from, till, until, since, except, instead of等。
比较:I took it from the bed. 我从床那儿(或床上)拿的。
            I took it from under the bed. 我从床下拿的。 
10、复合结构用作介词宾语:
如:She had no objection to Mary marrying him. 她不反对玛丽与他结婚。
        She came in with a book in her hand. 她手里拿着一本书走了进来。
        All the afternoon he worked with the door locked. 整个下午他都锁着门在房里工作。

介词短语的句法功能:
1、表语:
如:He was with a friend. 他和一个朋友在一起。
        Health is above wealth. 健康胜过财富。
        This knife is for cutting bread. 这把小刀是用于切面包的。
:有些介词(如because of)引出的短语通常只用作状语,不用作表语:
误:His absence is because of the rain.
正:His absence is due to the rain. 他因雨未来。
但是,若主语是代词(不是名词),becauseof引出的短语可用作表语:
如:It is because of hard work. 那是因为辛苦工作的原因。
2、状语:
如:Don't touch it with your hands. 别用手去摸它。
        Did you do this by design or by accident? 你这样做是有意的还是无意的?
3、定语:
如:This is his reply to your letter. 这是他给你的回信。
        This is the best way of doing it. 这是做此事最好的方法。
        My love for you is deeper than the sea. 我对你的爱比海深。
4、宾语补足语:
如:I found everythingin good condition. 我发现一切正常。
       Her illness kept her in bed for a week. 她因生病在床上躺了一星期。
:用作宾语补足语的介词短语在相应的被动语态中则为主语补足语:
如:He was regarded as a hero. 他被看成是英雄。
5、宾语:
如:A man stepped out from behind the wall. 一个人从墙后走出来。
        He cannot spare anytime except on Sunday. 除星期日外,他抽不出时间。
6、主语:
如:Between6 and 7 suits me. 六点到七点对我比较适合。
        After the exams is the time to relax. 考试后是轻松一下的时间。
:介词短语通常不用作主语,尽管有时也像上面这样用作主语,但通常可视为是在一定的上下文中有所省略:
如:—When are we going to have the next meeting? 我们下次什么时候见面?
        —On Tuesday may be convenient. 星期二可能比较方便。
此句中onTuesday虽用作主语,但可视为是其前省略了meeting一词:
即:Meeting during the vacation may be convenient.


系动词的概念:

连系动词(link verb)是一个表示谓语关系的动词。它必须后接表语(通常为名词或形容词)。连系动词的功能主要是把表语(名词、形容词、某些副词、非谓词、介词短语、从句)和它的主语联系在一起,说明主语的属性、特征或状态。它有自己的但不完全的词义,不能在句中独立作谓语,必须和后面的表语一起构成句子的谓语。它是虚词。


系动词的分类:

1、状态系动词:
用来表示主语状态,只有be一词。
例如:He is a teacher. 他是一名教师。(is与补足语一起说明主语的身份。)
2、持续系动词用来表示主语继续或保持一种状况或态度,主要有keep, rest, remain, stay, lie, stand:
例如:The weather will continue cold and wet.
            He remained poor after 20years.
            The shop will stay open at 11:00p.m.
            He stood/sat silent there. 
3、表像系动词:
用来表示"看起来像"这一概念,主要有seem, appear, look。
例如:She appears to have know this thing.
            She seems a student.
4、感官系动词:
感官系动词主要有feel, smell, sound, taste。
例如:The silk feels soft.
            Your idea sounds a good one.
            He looked like his mother.
            The mixture tasted terrible.
            The flower smells sweet.
5、变化系动词:
这些系动词表示主语变成什么样,变化系动词主要有become, grow, turn, fall, get, go, come, run。
例如:My dream o fcoming to China has come true.
            In summer food often goes bad.
            He turned doctor./ He became a doctor.
            He fell asleep as soon as he went to bed.
6、终止系动词表示主语已终止动作,主要有prove, turn out,表达"证实","变成"之意。
例如:The truth he stuck to proved true.

系动词基本用法:

连系动词是表示不完全谓语关系的动词,它与其后的表语一起构成谓语。
常见的连系动词有be(是),become(成为),get(变成),remain(还是),seem(似乎是),look(看上去),feel(感觉)等。
连系动词后的表语通常是名词和形容词,有时也可以是代词、数词、副词、介词短语、不定式、动名词、从句等:
如:His English is excellent. 他的英语很棒。(跟形容词)
        He is a famous poet. 他是著名诗人。(跟名词)
        Money isn't everything. 金钱不是一切。(跟代词)
        She was the first to arrive. 她是第一个到达的人。(跟数词)
        Who is up stairs? 谁在楼上?(跟副词)
        He is with his friends. 他和朋友在一起。(跟介词短语)
        He seems to be ill.他似乎病了。(跟不定式)
        Seeing is believing. 眼见为实。(跟动名词)
        This is what you need. 这就是你需要的。(跟从句)
:有些系动词又是实义动词,该动词表达实义时,有词义,可单独作谓语。
例如:1、She tasted①the soup to see if it tasted②too salty.  她尝了一口汤,看是否太咸。
            2、The doctor is feeling①his pulse because he feels②sick. 因为身体不舒服,医生正在给他切脉。
            3、The mother looked①at the sick child sadly and she looked②sad. 母亲难过地看着生病的孩子。
            4、She smelled①the meat to make sure it still smelled②good. 她闻了闻肉,看看是否还新鲜。
            5、The teacher asked the students to keep②quite when they were keeping①everything in order. 当学生整理东西时,老师让他们保持安静。
从以例子不难出,标①的动词为实义动词,他们后跟有宾语;标②的动词为系动词,其后往往跟形容词、名词、不定式等作表语。


系动词知识体系:

 


连系动词使用应注意的两点:

 1、关于连系动词后接副词作表语:
连系动词后通常可接形容词作表语,一般不接副词:
误:His English is very well. 他的英语很好。(应将well改为good)
误:Be carefully. 小心点。(应将carefully改为careful)
误:The soup tastes nicely. 这汤味道不错。(应将nicely改为nice)
但是,有时连系动词后也可接副词作表语,不过这主要限于in, on, off, out, away, behind, up, down, over, through, around, round, below, inside, outside等少数副词小品词以及here, there, upstairs, downstairs等少数表示地点或方位的副词:
如:Mother wasn't in last night. 母亲昨晚不在家。
        The meeting was over at five. 会议五点结束。
        Come along. The taxi is outside. 来吧,出租车在外面。
        Mother is downstairs waiting for you. 母亲在楼下等你。
2、关于连系动词后接不定式:
(1)连系动词be后根据情况可自由地接不定式作表语:
如:My dream is to be a scientist. 我的梦想是当一名科学家。 
        All I could do was to wait. 我只能等。
        My plan was to go from London to Paris. 我计划从伦敦去巴黎。
        I was to have seen Mr Kay. 我本要去见凯先生的。
(2)seem, appear, prove, continue, turn out, get, grow, come等连系动词后也可接不定式(尤其是to be)作表语:
如:She always seems to be sad. 她常常显得很忧伤。
        My advice proved to be wrong. 我的意见证明是错的。
        She appears to have many friends. 他好像有很多朋友。
        The weather turned out to be fine. 天气结果很好。
        Circumstances continue to be favorable.  情况仍然是有利的。
        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。不过,若其后接的是表语形容词,则to be通常不宜省略。
另外,连系动词look后能否接tobe似乎尚有争论,不过,在现代英语中接to be的现象已较普遍。
(3)sound, smell, feel, taste, become等连系动词后通常不能接不定式:
误:These oranges taste to be good. (应去掉to be)
误:The roses smell to be nice.(应去掉to be)
(4)有的连系动词后接的从句可用不定式来改写:
如:It seems that she's right./ She seems to be right. 她似乎是对的。
        It appears that you have made a mistake./You appear to have made a mistake. 似乎你弄错了。


情态动词的概念:

情态动词表示说话人对某一动作或状态的态度。


几组词的辨析

1、need和dare的用法:
need和dare既可用作情态动词,也可用作实义动词。用作情态动词时,主要用于否定句和疑问句。用作实义动词时,可用于各种句式。
(1)用作情态动词:
 如:—Need I come? 我需要来吗?
         —Yes, you must. 需要。
         You needn′t telephone him now. 你现在不必打电话给他。 
         I don′t think you need worry. 我想你不必发愁。 
         She dare not go out alone at night. 她晚上不敢一个人出去。
         How dare you say I′m unfair? 你竟敢说我不公平?
         Not one of them dared mention this.他们谁也不敢提这件事。
(2)用作实义动词:
如:You don′t need to do it yourself. 你不必亲自做这件事。
        We need to tell them the news. 我们需要把这消息告诉他们。
        The table needs painting(to be painted.). 桌子需要油漆一下。
        We should dare to give our own opinion.我们要敢于提出自己的观点。
        He did not dare(to) look up. 他不敢抬头看。
        I dare day he′ll come again. 我想他会再来的。
2、can和be able to:
(1)情态动词can只有两种时态形式,现在式can和过去式could,而be able to有多种时态形式。
如:Mary can play the piano. She has been able to play it since she was 5. 玛丽会弹钢琴。她五岁起就会弹了。
(2)用在过去时中,could经常表示能够做某事,事实上不一定去做,而was∕were able to则表示“过去做成了某事”。在否定句中两者可通用。
如:He could swim across the English Channel. But he didn′t feel like it that day.
        他能游过英吉利海峡,但那天他不想游。
        Yesterday I was able to get home before the heavy rain. 昨天我在下大雨前赶到了家里。
3、must和have to:
must表示主观意志,而have to表示由于客观因素不得不做某事。must没有过去式,除在间接引语中可用于表示过去时间,在直接引语中表示过去时间应该用had to代替。
如:I told her that she must give up smoking. 我叫她必须戒烟。
        We had to get everything ready that night. 我们那晚得把一切准备就绪。
4、would和used to:
(1)usedto表示过去与现在或过去某时与后来的情况有不同,而would只表过去的情况。
如:People used to think that the earth was flat.  过去人们认为地球是平的。(现在人们不这么认为。) 
        She would go out for a walk in the morning when she was in the country.
        在乡下时,她总是在早晨去散会儿步。(可能现在仍有散步的习惯。)
(2)used to可表示过去的习惯动作和经常的情况,而would只表示过去的习惯动作。
如:He used to∕would smoke while writing. 过去他写东西时常抽烟。
        She used to be fat. 她过去很胖。


情态动词的基本用法:

1、can(could):
1)表示能力,could主要指过去时间。
如:Two eyes can see more than one. 两只眼比一只眼看得清。
        Could the girl read before she went to school? 这女孩上学前能识字吗?
2)表示可能(理论上或是逻辑判断上)。
如:The temperature can fall to–60℃, that is 60℃ below freezing. 气温可降至-60℃,也就是零下60℃。
        He can′t(couldn′t) have enough money for a new car. 他不可能有足够的钱买新车。  
        You mustn′t smoke while you′re walking around in the wood. You could start a fire. 
        在林子里走时勿吸烟,那样可能会引起火灾。
3)表示允许。
如:Can I have a look at your new pen? 我可以看一看你的新钢笔吗?
        He asked whether he could take the book out of the reading-room. 他问他可不可以把书带出阅览室。
4)表惊异、怀疑、不相信等态度。主要用于否定句、疑问句或感叹句中。
如:Where can(could) they have gone to? 他们会去哪儿了呢?
        He can′t(couldn′t) be over sixty. 他不可能超过六十岁。
        How can you be so careless? 你怎么这么粗心?
5)比较委婉客气地提出问题或陈述看法。
如:Can(Could) you lend me a hand? 帮我一把好吗?
        I′m afraid we couldn′t give you an answer today. 恐怕我们今天不能给你答复。
2、may(might):
1)表允许,might可以指过去时间,也可指现在时间,语气更委婉。
如:You may take what ever you like. 你喜欢什么就拿什么。
        He told me that I might smoke in the room. 他告诉我可以在房间里抽烟。
        May(Might) I ask for a photo of your baby? 我可以要一张你宝宝的照片吗?
在回答以may引起的问句时,多避免用这个词,而用其它方式:
如:Yes, please./Certainly. /Please don′t./You′d better not./No, you mustn′t.等,以免显得太严峻或不客气。
2)表可能(事实上)。可以指过去时间,也可以指现在时间,但语气更加不肯定。
如:He may be at home. 他可能在家。
        She may not know about it. 她可能不知道这件事。
        He was afraid they might not agree with him. 他担心他们可能不同意他的意见。 
如:They might be having a meeting, but I′m not sure. 他们有可能在开会,不过我不肯定。
3、must:
1)表示义务。意为“必须”(主观意志)。
如:We must do everything step by step. 我们一切都必须循序渐进地做。
        You mustn′t talk to her like that. 你不可能那样对她说话。
         —Must we hand in our exercise-books now? 我们现在就要交练习本吗?
         —No, you needn′t./No, you don′t have to.不必。(这种情况下,一般不用mustn′t)
2)表示揣测。意为“想必、准是、一定”等,只用于肯定句。
如:He must be ill. He looks so pale. 他准是病了。他的脸色苍白。
如:She′s wearing a diamond necklace. She must have a lot o fmoney. 她戴着钻石项链,一定很有钱。
4、shall:
1)表征询意见,用于第一、第三人称疑问句。
如:Shall I get you some tea? 我给你点茶好吗?
        Shall the boy wait outside? 让那男孩在外面等吗?
        What shall we do this evening? 我们今晚做什么?
2)表说话人的意愿,有“命令、允诺、警告、决心”等意思,用于第二、第三人称陈述句。
如:You shall do as I say. 按我说的做。(命令)
        You shall have my answer tomorrow. 你明天可以得到我的答复。(允诺)
        He shall be sorry for it one day, I tell you.有一天他会后悔的,我告诉你。(警告)
如:Nothing shall stop us from carrying out the plan.什么也不能阻止我们执行这项计划。(决心)
5、will:
1)表意愿,用于各种人称陈述句。
如:I will do anything for you. 我愿为你做任何事。
        None is so blind as those who won′t see. 不愿看的人眼最瞎。
        If you will read the book, I′ll lend it to you. 如果你愿意读这本书,我会把它借给你。
2)表请求,用于疑问句。
如:Will you close the window? It′s a bit cold. 请你把窗户关上好吗?有点冷。
        Won′t you drink some more coffee? 再来一点咖啡好吗?
3)表示某种倾向或习惯性动作。
如:Fish will die out of water. 鱼离开水就不能活。
        The door won′t open. 这门打不开。
        The boy will sit there hour after hour looking at the traffic go by. 
        那男孩常常坐在那里好几个钟点,看着车辆行人通过。
6、should:
1)表义务。意为“应该”(某件事宜于做),用于各种人称。
如:You should be polite to your teachers. 你对老师应该有礼貌。
        You shouldn′t waste anytime. 你不应该浪费时间。
2)表推测,意为“想必一定、照说应该、估计”等。
如:The film should be very good as it is starring first-class actors. 这部新电影是一流演员主演的,估计拍得很好。       
        They should be home by now. 照说他们现在应当已经到家了。
7、would:
1)表意愿。
如:They would not let him in because he was poorly dressed. 他们不让他进去因为他衣着破旧。 
        I said I would do anything for you. 我说过我愿意为你做任何事。
2)表委婉地提出请求、建议或看法。
如:Would you like another glass of beer? 再来杯啤酒好吗?
        Would you mind cleaning the window? 请把窗户擦一下好吗?
        They wouldn′t have anything against it. 他们不会有什么反对意见。
3)表过去反复发生的动作或过去的一种倾向。
如:Every time she was in trouble, she would go to him for help. 她每遇到麻烦都会向她求助。
8、ought to:
1)表义务,意为“应该”(因责任、义务等该做),口气比should稍重。
如:You are his father. You ought to take care of him. 你是他父亲,应当管他。
        You oughtn′t to smoke so much. 你不应该抽这么多烟。
2)表推测,暗含很大的可能,语气较弱。
如:Han Mei ought to know his telephone number. 韩梅该知道他的电话号码。
        There′s a fine sun set; it ought to be a fine day tomorrow. 今天有晚霞,明天应该是个好天。
9、used to:
表示过去的习惯动作或状态,现在不复发生或存在。疑问式和否定式有两种。
如:He used to live in the countryside, but now he lives in the city. 他过去住在乡下,现在住在城里。
        There used to be a building at the street corner, but it has been pulled down. 街道拐角处过去有座楼房,现在拆了。
        I usedn′t (didn′t use) to smoke. 我过去不抽烟。
        Used you(Did you use) to go to school on foot? 你过去常步行去学校吗?

情态动词的其他用法:

首先它是动词,而且不同于行为动词,行为动词表示的是可以通过行为来表达的动作(如写,读,跑),而情态动词只是表达的一种想法(如能,也许,敢)。
用法是:情态动词+行为动词原形:
句:I can read this sentence in English. 我能用英语读这句话。
情态动词是一种本身有一定的词义,表示说话人的情绪,态度或语气的动词,但不能单独作谓语,只能和其他动词原形构成谓语。
如:We can be there on time tomorrow. 我们明天能按时去那儿。
        May I have your name? 我能知道你的名字吗?
        Shall we begin now? 我们现在就开始吗?
        You must obey the school rules. 你必须遵守校规。


情态动词知识体系:

 


情态动词表推测的三种句式:

1、在肯定句中一般用must(一定),may(可能),might/could(也许,或许)。
如:He must/may/might know the answer to this question? 他一定/可能/也许知道这个问题的答案。 
        It is cold in the room. They must have turned off the heating. 屋里很冷,他们肯定把暖气关了。
2、否定句中用can't/couldn't (不可能), may not/might not(可能不)。
如:It can't/couldn't be the headmaster. He has gone to America.  这不可能是校长,他去美国了
        He may not/might not know the scientist. 他也许不认识那位科学家。
3、疑问句中用can/could(能……?)。
如:Could he have finished the task? 他可能把任务完成了吗?
        Can he be at home now? 他现在能在家吗?
注:以上三种句式中情态动词的语气按程度都是依次递减的。Might, could并非may, can的过去式,而表示语气较为委婉或可能性较小。

情态动词表推测的三种时态:

1、对将来情况的推测,用“情态动词+动词原形”。
如:She must/may/might/could arrive before 5.  5:00前她一定/可能/也许到。
        She must/may/might/could walk miles and miles among the hills without meeting anyone.
        她一定/可能/也许会在山里一连走好几英里而遇不到一个人。
2、对现在或一般情况的推测,用“情态动词+be”,“情态动词+bedoing”或“情态动词+动词原形”。
如:He must/may/might/could be listening to the radio now. 他一定/可能/也许正在听收音机。
        He can't(couldn't)/may(might) not be at home at this time. 这个时候他不可能/可能不在家。
        Mr. Bush is on time for everything. How can(could) he be late for the opening ceremony?
        布什先生一向准时,这次开幕式他怎么可能迟到呢?
3、对过去情况的推测,用“情态动词+have+过去分词”。
如:It must/may/might/ could have rained last night. The ground is wet. 地湿了,昨晚肯定/可能/也许下雨了。
        The door was locked. He can(could) not/may(might) not have been at home. 门锁着,他不可能/可能不在家。       
        Can/Could he have gotten the book?难道他找到书了吗?
:情态动词should/ought to表推测时,意为“想必会,理应……”但与“have+过去分词”连用时,则又可构成虚拟语气意为“本应该做某事却没做”。
如:It's seven o'clock. Jack should/ought to be here at any moment.
        现在七点钟了,杰克理应随时到达。(推测)    
        She should/ought to have attended your birthday party, but she had to look after her mother in hospital.(虚拟)
        她本该出席你的生日晚会的,可是她得在医院照顾她妈妈。 
        Tom should not/ought not to have told me your secret, but he meant no harm.(虚拟)
        汤姆本不该告诉我你的秘密,可是他并无恶意。

现在分词的概念:

现在分词(PresentParticiple)(又称-ing形式),是分词的一种,是非限定动词,即在句子里面不能单独充当谓语,但能充当其它的一些成分(定语,表语,补语和状语)。一般式:doing;一般被动式:being done;完成式:having done;完成被动式:having been done。所有否定式都是在-ing前面加not。


现在分词的用法:

1)做表语:
如:He was very amusing.
        That book was rather boring.
很多动词的现在分词都可以作表语:exciting, interesting, encouraging, disappointing, confusing, touching, puzzling.
2)作定语:
上面所出现的现在分词都可以用作定语,修饰一个名词:
如:That must have been a terrifying experience.
        I found him a charming person.
现在分词短语还可以放在名词的后面修饰名词,相当于一个定语从句:
如:There are a few boys swimming in the river.
        There is a car waiting outside.
3)作状语:
现在分词短语可以表示一个同时发生的次要的或伴随的动作:
如:Following Tom, we started to climb the mountain. 
        Opening the drawer, he took out a box.
        Taking a key out of his pocket, he opened the door.
现在分词短语还可以表示原因,相当于一个原因状语从句:
如:Not knowing her address, we couldn't get in touch with her.
        Being unemployed, he hasn't got much money.
现在分词短语还可以表示时间,相当于一个时间状语从句:
如:Hearing the news, they all jumped with joy.
        Returning home, he began to do his homework. 
        Jim hurt his arm while playing tennis.
        Be careful when crossing the road.
        Having found a hotel, we looked for some where to have dinner.
        Having finished her work, she went home.
4)作宾补:
现在分词在一些动词之后可以做宾语的补语:
例如:see, hear, catch, find, keep, have等。
如:I see him passing my house every day.
        I caught him stealing things in that shop.
        I smelt something burning.
        She kept him working all day.


现在分词其他用法解析:

1、现在分词一般式的用法:
现在分词的一般式所表示的动作与主语动作同时发生:
如:When we arrived, we found him sleeping. 我们到达时发现他在睡觉。
         Living in the 示的动作也可略早于或迟于谓语动作,但两者之间没有时间间隔:
如:Seeing nobody at home, he decided to leave a note. 发现没有在家,他决定留个字条。 
         He went home, finding the door locked. 他回到家,发现门是锁着的。当现在分词所表示的动作略迟于谓语动作时,现在分词通常位于句末。

2、现在分词完成式的用法:
现在分词的完成式主要表示发生在谓语动作之前的动作:
如:Having been there once, she knew the place quite well. 由于去过那儿一次,她对那地方很熟悉。
        Having failed twice, he didn't want to try again. 他已经失败了两次,不想再试了。
注:(1)现在分词的一般式和完成式均可表示已完成或先于谓语的动作,但有区别:现在分词所表示的动作虽然可以先于谓语动作,但两者之间没有时间间隔,而现在分词的完成式所表示先于谓语的动作则与谓语动作有一定的时间间隔:
如:Locking the door, he went out. 锁好门之后,他就出去了。
        Having invited him here to speak, we'd better go to his lecture. 既然我们请了他来作报告,我们最好去听一下。
有时即使是分词动作与谓语动作几乎同时发生,但如果要强调分词动作的完成性,也应用现在分词的完成式:
如:Having bought our tickets, we went into the theatre. 我们买好票后就走进剧场。
(2)现在分词的完成式一般不用作定语:
误:Do you know anyone having lost a cat? 你知道有谁丢了一只猫吗?
误:I want to talk to the person having broken the window. 我想同打破窗户的人谈谈。
若将以上现分词的完成式改为一般式也不可以(因为现在分词作后置定语时通常只表示与谓语动作同时或几乎同时发生的动作,而不能先于谓语动作而发生):
误:I want to talk to the person breaking the window.

3、现在分词被动式的用法:
当要表示一个被动动作时,现在分词就用被动形式。现在分词的一般式和完成式均有被动式形式:
(1)现在分词一般式的被动式:主要表示现在正在进行的动作,也可表示与谓语动作同时发生的动作:
如:Who is the woman being operated on? 正在动手术的女人是谁?
         I saw him being taken away by the police. 我看见他被警察带走。
:有时现在分词一般式的被动式所表示的动作也可发生在谓语动作之前(此时的现在分词通常用于表示原因,且多为状态动词):
如:Not having a car, he finds it difficult to get around. 由于没车,她感到行动很困难。
(2)现在分词完成式的被动式:主要表示发生在谓语动词之前且已经完成的动作。
如:The subject having been opened, he had to go on with it. 话题已经开始了,他不得不谈下去。
        Having been written inhaste, the book has many mistakes. 这书因写得仓促,所以错误不少。
比较:Being so ill, she can't go to school. 由于病得那么严重,她不能去上学。
            Having been ill for a long time, he needed time to recover. 由于病了很长时间,他需要一段恢复的时间。


限制性定语从句的概念:

限制性定语是指对被修饰名词或代词的必需修饰,是被修饰名词或代词不可缺少的修饰语,如果去掉它句子意思往往会不明确或会发生变化。
如:The travellers knowing about the floods took another road. 知道发大水的那些游客改道走了。
        The boys wanting to play football were disappointed when it rained. 想踢足球的那些男孩子因为下雨而感到失望。


关系代词引导的定语从句:

关系代词所代替的先行词是人或物的名词或代词,并在句中充当主语、宾语、定语等成分。关系代词在定语从句中作主语时,从句谓语动词的人称和数要和先行词保持一致。
1)who, whom, that 这些词代替的先行词是人的名词或代词,在从句中所起作用如下:
例:Is he the man who/that wants to see you? 他就是你想见的人吗?(who/that在从句中作主语)      
       He is the man whom/that I saw yesterday. 他就是我昨天见的那个人。(whom/that在从句中作宾语)
2)Whose用来指人或物,(只用作定语,若指物,它还可以同ofwhich互换)
例:They rushed over to help the man whose car had broken down. 那人车坏了,大家都跑过去帮忙。  
        Please pass me the book whose(of which) coverisgreen. 请递给我那本绿皮的书。
3)which, that 它们所代替的先行词是事物的名词或代词,在从句中可作主语、宾语等。
例如:A prosperity which/that had never been seen before appears in the countryside. 农村出现了前所未有的繁荣。(which/that在句中作宾语)
            The package(which/that) you are carrying is about to come unwrapped.你拿的包快散了。(which/that在句中作宾语)

关系副词引导的定语从句:

关系副词可代替的先行词是时间、地点或理由的名词,在从句中作状语。
1)when, where, why 关系副词when, where, why的含义相当于“介词+which”结构,因此常常和“介词+which”结构交替使用。
例如:There are occasions when(on which) one must yield.任何人都有不得不屈服的时候。
            Beijing is the place where(inwhich) I was born. 北京是我的出生地。
            Is this the reason why(for which) he refused our offer? 这就是他拒绝我们帮助他的理由吗?
2)that代替关系副词 that可以用于表示时间、地点、方式、理由的名词后取代when, where, why和“介词+which”引导的定语从句,在口语中that常被省略,
例如:His father died the year(that/when/in which) he was born. 他父亲在他出生那年逝世了。
            He is unlikely to find the place(that/where/in which) he lived forty years ago. 他不大可能找到他四十年前居住过的地方。


限定性定语与非限定性定语的区别:

1、形式不同:
限定性定语从句主句和从句之间不用逗号隔开,口语中使用时也不停顿;而非限定性定语从句与主句之间通常有逗号隔开,口语中使用时有停顿。
2、功能不同:
 限定性定语从句用于对先行词的意义进行修饰、限制和识别,如果去掉,就会造成句意不完整或概念不清;而非限定性定语从句用于对先行词起补充说明作用,如果省略,句意仍然清楚、完整:
如:People who take physical exercise live longer. 进行体育锻炼的人活得长些。(若把从句去掉句子就失去意义)
        His daughter, who is in Boston now, is coming home next week. 他女儿现在在波士顿,下星期回来。(若把从句去句子意义仍然完整)
3、翻译不同:
在翻译定语从句时,一般把限定性定语从句翻译在它所修饰的先行词之前,而把非限定性定语从句与主句分开:
如:He is the man whose car was stolen. 他就是汽车被窃的那个人。
        I've invited Jim, who lives in the next flat. 我邀请了吉姆,他就住在隔壁。
4、含义不同:
如:I have a sister who is a doctor. 我有一个医生的姐姐。(姐姐不止一个)
        I have a sister, who is a doctor. 我有一个姐姐,她是当医生的。(只有一个姐姐)
5、先行词不同限定性定语从句的先行词只能是名词或代词,而非限定性定语从句的先行词则可以是名词或代词,也可以是短语或句子;
另外,当先行词为专有名词或其他具有独一无二性的普通名词时,通常要用非限制性定语从句,而不用限制性定语从句:
如:Peter drove too fast, which was dangerous. 彼得开车很快,这是很危险的。(which指drive too fast)
        He changed his mind, which made me very angry. 他改变了主意,这使我很生气。(which指整个主句)
        Mr.Smith, who is our boss, will leave for Japan next week. 我们的老板史密斯先生下周要去日本。(先行词为专有名词,要用非限制性定语从句修饰)  
        Her father, who has a lot of money, wishes her to study abroad. 她父亲很有钱,希望她出国学习。(先行词为表独一无二意义的普通名词,要用非限制性定语从句修饰)
6、关系词不同:
关系词that和why可用于限制性定语从句中,通常不用于非限制性定语从句;另外,在限制性定语从句中,关系词有时可以省略,而在非限制性定语从句中关系词一律不省略。


判断关系代词与关系副词方法:

一:用关系代词,还是关系副词完全取决于从句中的谓语动词。及物动词后面无宾语,就必须要求用关系代词;而不及物动词则要求用关系副词。
例如:This is the mountain village where I stayed last year.
            I'll never forget the days when I worked together with you.
判断改错
(错)This is the mountain village where I visited last year.
(错)I will never forget the days when I spent in the countryside.
(对)This is the mountain village(which) I visited last year.
(对)I'll never forget the days(which) I spent in the countryside.
注:习惯上总把表地点或时间的名词与关系副词where, when联系在一起。此两题错在关系词的误用上。
二:准确判断先行词在定语从句中的成分(主、谓、宾、定、状),也能正确选择出关系代词/关系副词。
例1. Is this museum ___ you visited a few days age?
        A. where 
        B. that
        C. on which
        D. the one
例2. Is this the museum ____ the exhibition was held.  
        A. where 
        B. that
        C.on which
        D. the one
答案:例1:D,例2:A
例1变为肯定句:This museum is___ you visited a few days ago.
例2变为肯定句:This is the museum ___ the exhibition was held.
注:在句1中,所缺部分为宾语,而where, that, on which都不能起到宾语的作用,只有the one既做了主句的表语,又可做从句的宾语,可以省略关系代词,所以应选D。
而句2中,主、谓、宾俱全,从句部分为句子的状语表地点,既可用副词where,又因in the museum词组,可用介词in+which引导地点状语。
而此题中,介词on用的不对,所以选A。关系词的选择依据在从句中所做的成分,先行词在从句中作主、定、宾语时,选择关系代词(who,whom,that,which,whose);
先行词在从句中做状语时,应选择关系副词(where地点状语,when时间状语,why原因状语)。


定语从句知识体系:

 


关系代词that的用法:

1)不用that的情况:
a)在引导非限定性定语从句时。
如:(错)The tree, that is four hundred years old, is very famous here.
b)介词后不能用:
如:We depend on the land from which we get our food.
        We depend on the land that/which we get our food from.
2)只能用that作为定语从句的关系代词的情况
a)在there be句型中,只用that,不用which。
b)在不定代词,如:anything, nothing, the one, all, much, few, any, little等作先行词时,只用that,不用which。
c)先行词有the only, the very修饰时,只用that。
d)先行词为序数词、数词、形容词最高级时,只用that。.
e)先行词既有人,又有物时。
例:All that is needed is a supply of oil.  所需的只是供油问题。  
        Finally, the thief handed everything that he had stolen to the police. 那贼最终把偷的全部东西交给了警察。


主语从句的概念:

如果一个句子在复合句中充当一个主语,那么这个句子就是主语从句。主语从句通常由从属连词that,whether,if和连接代词what,who,whichwhatever,whoever以及连接副词how,when,where,why等词引导。that在句中无词义,只起连接作用。


主语从句用法:

1、主语从句的引导词:
主语从句通常由连词that和whether、连接代词或连接副词以及关系代词型what引导:
如:That he is still alive is a wonder. 他还活着,真是奇迹。
        When we arrive doesn't matter. 什么时候到没有关系。
        What we need is money. 我们需要的是钱。
        What I want to know is this. 我想知道的就是这一点。
        Whether they would support us was a problem. 他们是否会支持我们还是一个问题。

2、主语从句与形式主语it:
有时为了考虑句子平衡,通常在主语从句处使用形式主语it,而将真正的主语从句移至句末。这分三种情况:
(1)对于以连词that引导的主语从句,通常用形式主语代主语从句:
如:It's a pity that he didn't come. 很遗憾他没来。
(2)对于以连接代词(副词)引导的主语从句,可以使用形式主语代主语从句,也可直接在句首使用主语从句:
如:Whether they would support us was a problem. 他们是否会支持我们还是一个问题。  
        It was a problem whether they would support us. 他们是否会支持我们还是一个问题。
(3)对关系代词型what引导的主语从句,通常不用形式主语,总是主语从句放在句首:
如:What we need is money. 我们需要的是钱。
        What I want to know is this. 我想知道的就是这一点。
(4)如果句子是疑问句,则必须用带形式主语it的结构:
如:Is it true that he is the girl's father? 他是那女孩的父亲,是真的吗?
        How is it that you are late again? 你怎么又迟到了?

3、连词that的省略问题:
引导主语从句的连词that有时可省,有时不能省,其原则是:
若that引导的主语从句直接位于句首,则that不能省略;
若that引导的主语从句位于句末,而在句首使用了形式主语it,则that则可以省略:
如:That you didn't go to the talk was a pity. 很遗憾你没去听报告。(that不可省)
        It was a pity(that) you didn't go to the talk. 很遗憾你没去听报告。(that可省)


主语从句应注意的几个问题:

1、that引导的主语从句既可放在句首,也可放在句尾,但在下列情况下that从句不可提前。
(1)在It is said/reported...that结构中:
如:It is reported that a bank was robbed yesterday.
(2)在Ithappened/occurred...结构中:
Ithappenedthattheteacherwasnotintheofficethatday.
(3)含主语从句的复合句是疑问句时:
如:Is it ture that you will give up the job?
2、下面这种情况常用it作形式主语。在It doesn't matter+what/whatever…结构中。
如:It doesn't matter what you say.
3、由what引导的主语从句谓语动词单复数问题 what引导的主语从句一般按单数对待,但是,在实际使用中究竟按单数还是按复数对取决于其成分的含义。
如:What we need is more time.
        What were left behind were five empty bottles.