Her pale face suggests that she ______ in poor health and strongly sug,高中二年级,英语试题,系动词考点,虚拟语气考点,好技网

单选题
Her pale face suggests that she ______ in poor health and strongly suggest that she _____ a doctor.

A. is; sees
B. be; see
C. is; see
D. be; should see

本题信息：2012年同步题英语单选题难度一般来源:刘婷婷
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本试题 “Her pale face suggests that she ______ in poor health and strongly suggest that she _____ a doctor.A. is; seesB. be; seeC. is; seeD. be; should see” 主要考查您对
系动词

虚拟语气
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。

系动词
虚拟语气

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)
注：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。
【注】
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。

虚拟语气的概念：

虚拟语气用来表示说话人的主观愿望或假想，所说的是一个条件，不一定是事实，或与事实相反。在条件句中的应用条件句可分为两类，一类为真实条件句，一类为非真实条件句。非真实条件句表示的是假设的或实际可能性不大的情况，故采用虚拟语气。

虚拟语气在条件句中的应用：

一、真实条件句：
真实条件句真实条件句用于陈述语气，假设的情况可能发生，其中if是如果的意思。
时态关系句型：条件从句：一般现在时；主句：shall/will+动词原形
如：If he comes, he will bring his violin.
典型例题：
The volleyball match will be put off if it___.
A. will rain
B. rains
C. rained
D. is rained
答案：B。真实条件句主句为将来时，从句用一般现在时。
注意：1）在真实条件句中，主句不能用be going to表示将来，该用shall, will。
如：（错） If you leave now, you are never going to regret it.
         （对） If you leave now, you will never regret it.
            2）表示真理时，主句谓语动词便不用shall(will)+动词原形，而直接用一般现在时的动词形式。

二、非真实条件句：
非真实条件句表示的是假设的或实际可能性不大的情况，故采用虚拟语气。
1）时态：可以表示过去，现在和将来的情况。它的基本特点是时态退后。
a. 同现在事实相反的假设。
句型：从句：一般过去时；主句：should(would)+动词原形
如：If they were here, they would help you.
b.表示于过去事实相反的假设。
句型：条件从句：过去完成时；主句：should(would)have+过去分词
如：If she had worked harder, she would have succeeded.
        The rice would not have been burnt if you had been more careful.
        If my lawyer had been here last Saturday, he would have prevented me from going.
c.表示对将来的假想句型：
条件从句：一般过去时；主句：should+动词原形
                   从句： were+不定式；主句：would+动词原形 should+动词原形
如：If you succeeded, everything would be all right.
        If you should succeed, everything would be all right.
        If you were to succeed, everything would be all right.

三、混合条件句：
主句与从句的动作发生在不同的时间，这时主，从句谓语动词的虚拟语气形式因时间不同而不同，这叫做混合条件句。
如：If you had asked him yesterday, you would know what to do now. （从句与过去事实相反，主句与现在事实相反。）
        If it had rained last night (过去), it would be very cold today (现在).

比较if only与only if：

only if表示“只有”；if only则表示“如果……就好了”。If only也可用于陈述语气。
如：I wake up only if the alarm clock rings. 只有闹钟响了，我才会醒。
        If only the alarm clock had rung. 当时闹钟响了，就好了。
        If only he comes early. 但愿他早点回来。
It is(high) time that It is(high) time that 后面的从句谓语动词要用过去式或用should加动词原形，但should不可省略。
如：It is time that the children went to bed.
        It is high time that the children should go to bed.
need“不必做”和“本不该做"”
didn't need to do表示：过去不必做某事，事实上也没做。
needn'thavedone表示：过去不必做某事，但事实上做了。
如：John went to the station with the car to meet Mary, so she didn't need to walk back home.
        约翰开车去车站接玛丽，所以她不必步行回家了。
        John went to the station with the car to meet Mary, so she needn't have walked back home.
        约翰开车去车站接玛丽，所以她本不必步行回家了。(Mary步行回家，没有遇上John的车。)
典型例题：
There was plenty o ftime. She___.
A. mustn't have hurried
B. couldn't have hurried
C. must not hurry
D. needn't have hurried
答案：D。needn't havedone. 意为"本不必"，即已经做了某事，而时实际上不必要。 Mustn't have done用法不正确，对过去发生的事情进行否定性推断应为couldn't have done,“不可能已经”。must not do不可以（用于一般现在时）

特殊的虚拟语气词should 的用法：

1）It is demanded/necessary/a pity+that…结构中的主语从句的谓语动词要用should加动词原形，should可省略。
句型：
如：It is suggested that we(should) hold a meeting next week.
        It is necessary that he(should) come to our meeting tomorrow.
2）在宾语从句中的应用在表示命令、建议、要求等一类动词后面的从句中。order, suggest, propose, require, demand, request, insist, command, insist+(should)do
如：I suggest that we(should) hold a meeting next week.
       He insisted that he(should) be sent there.
注意：如suggest, insist不表示“建议”或“坚持要某人做某事时”，即它们用于其本意“暗示、表明”、“坚持认为”时，宾语从句用陈述语气。
如：The guard at gate insisted that everybody obey the rules.
判断改错：（错）You pale face suggests that you(should) be ill.
                    （对）Your pale face suggests that you are ill.
                    （错）I insisted that you(should) be wrong.
                    （对）I insisted that you were wrong.
3）在表语从句，同位语从句中的应用在suggestion, proposal, idea, plan, order, advice等名词后面的表语从句、同位语从句中要用虚拟语气，即（should）+动词原形。
如：My idea is that we(should) get more people to attend the conference.
        I make a proposal that we(should) hold a meeting next week.

虚拟语气知识体系：

	条件从句中的谓语动词形式	主句中的谓语动词形式
与过去事实相反	had+过去分词	should/would+have+过去分词
与现在事实相反	过去式	should/would+动词原形
与将来事实相反	1、过去式	should/would+动词原形
	2、should+动词原形	should/would+动词原形
	3、were to+动词原形	should/would+动词原形

虚拟条件句的倒装：

虚拟条件句的从句部分如果含有were, should, 或had, 可将if省略，再把were, should或had移到从句句首，实行倒装。
如：Were they here now, they could help us.=If they were here now, they could help us.
        Had you come earlier, you would have met him=If you had come earlier, you would have met him.
        Should it rain, the crops would be saved.=Were it to rain, the crops would be saved.
注意：在虚拟语气的从句中，动词“be”的过去时态一律用“were”，不用was，即在从句中be用were代替。
如：If I were you, I would go to look for him. 如果我是你，就会去找他。
        If he were here, everything would be all right. 如果他在这儿，一切都会好的。
典型例题：_____to do the work, I should do it some other day.
                   A. If were I
                   B. I were
                   C. Were I
                   D. Was I
答案：C. 在虚拟条件状语中如果有were, should, had这三个词，通常将if省略，主语提前，变成were, should, had+主语的形式。
但要注意，在虚拟条件状语从句中，省略连词的倒装形式的句首不能用动词的缩略形式。如我们可说Were I not to do.，而不能说Weren't I to do。

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