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1、第一部分:语气的定义和种类1 语气 (mood) 语气是动词的一种形式,表示说话人对某一行为或事情的看法和态度。2 语气的种类、陈述语气:表示动作或状态是现实的、确定的或符合事实的,用于陈述句、疑问句和某些感叹句。如: There are two sides to every questio n.每个问题都有两个方面。 Were you busy all day yesterday?昨天一整天你都很忙吗? How good a teacher she is!她是多好的一位老师啊!、祈使语气:表示说话人对对方的请求或命令。如: Never be late again! 再也不要迟到了。 Don&

2、#39;t forget to turn off the light. 别忘了关灯。、虚拟语气:表示动作或状态不是客观存在的事实,而是说话人的主观愿望、假设或推测等。如: If I were a bird, I could fly in the air. 如果我是一只小鸟,我就能在空中飞行。 I wish I could pass the examination. 我希望我能通过考试。 May you succeed祝您成功! 虚拟语气在语法里算得上是个难点。让我们就从最简单的开始吧。第二部分:简单句中的虚拟语气一、情态动词的过去式用于现在时态时,表示说话人的谦虚、客气、有礼貌、或委婉的语气,

3、常用于日常会话中。如:.Would you be ki nd en ough to show me the way to the post office?请你告诉我去邮局的路好吗? .It would be better for you not to stay up too late 你最好别熬夜到很晚。二、表祝愿。1、常用“may动词原形”表示祝愿,但愿,此时may须置于句首(多用于正式文体中)。、Maygoodluck be yours! 祝你好运!、Mayyoube happy! 祝你快乐!、Mayyoudo even better! 祝你取得更大成就!、Mayyouhave a goo

4、d time. 祝愿你玩的痛快。、Maythefriendship between us lastlong. 祝愿我们的友情天长地久。、Mayyoube happy. (注意那个 be )祝你幸福。2、用动词原形。例如:(1).Longlivethe people! 人民万岁!(2).“ Godblessyou, ” saidthe priest.牧师说:“愿上帝保佑你! ”(3).Havea good journey! 祝愿你旅途愉快!三、表示强烈愿望。(该类型虚拟语气谓语仅用动词原形,第三人称单数也不加(1).Godsaveme.Heaven help us.四、表命令1. 命令虚拟语气只

5、能用在第二人称(you) ,而且通常省略主语 (也就是 you)。2. 句子尾通常加上感叹号:!3. 虚拟语气动词用一般现在时态(Simple Present),如:work, be , go4. 否定形式的命令语气,可用助动词do,加上not。(1) . Work !(2) .Work harder!(3) .Bemore alert!(虚拟语气动词Be)(4) .Yougo out!(5) .Donot worksohard.(donot表示否定的虚拟语气 )(6). Don't be afraid. (口语中常用 don't 代替 do not) 五、在一些习惯表达中。如

6、:(1).You 'dbetter set off now. 你最好现在就出发。(2).1' dther not tell you the secret.我情愿不告诉你这个秘密。第三部分:名词性从句中的虚拟语气第一节:宾语从句(Subordi nate Clasue)中的虚拟语气一、在动词 wish 后的宾语从句中的虚拟语气在动词 wish 后的宾语从句中的虚拟语气,常省去宾语从句的引导词that。一)、对现在情况的虚拟(与现在的事实相反):从句用过去式或过去进行式(时间上是同时的 )。其句子结构为:宾语从句的谓语be 和 we re (was) ,实义动词用过去式。例:1.

7、I wish (that可省略,下同)1 knew the answer to the question.(wish, 动词过去式knew)我希望知道这个答案。 (事实上是不知道 )2. Iwishitwerespri ng in my hometow n all theyear aroun d.(wish,were)但愿我的家乡四季如春。(事实上不可能 )3. IwishIwerea bird.(wish, were)但愿我是只小鸟。(事实上不可能)4. When she was at the party,she wished she were at home.(wished,过去虚拟动词

8、were)(事实上并不在家)5. Now thathe isinChina, hewishes he un derstoodChin ese.(wishes,过去虚拟动词 un derstood)现在他在中国,他希望能懂得中文。(事实上并不懂 )6. When webeginthetrip, theywill wish they werewith us.(will wish,过去虚拟动词 were)(事实上并不和我们在一起 )二)、对过去情况的虚拟(和过去的事实相反):用 wish 表示对过去事情的遗憾。 其句子结构为: 宾语从句的谓语用过去完成时, 或 would, could,might+

9、 现在完成时。 例:1. I wish (that 可省略,下同 )I hadn't wasted so much time.我后悔不该浪费这么多时间。(事实上已浪费了 )2. He wishes he hadn't lost the chance.他真希望没有失去机会。(其实已失去 )3. We wished he had spoken to us.(wished, had + spoken)(事实上他并没同我们讲 )4. I wish you had called earlier.(wish, had + called)(事实上已迟了 )5. They will wish

10、they had listened to us sooner.(will wish,had +listened)(事实上并不如此)例题分析: I wish I longer this morning, but I had to get up and come to class.A. could have slept B. slept C. might have slept D. have slept动词 wish 后面接从句,表达不可能实现或与事实相反的情况时,谓语动词要用虚拟语气,即用过去式(表示现在发生的动 作)或过去完成式(表示过去发生的动作)。本题后半句谓语动词have用的是过去时ha

11、dto get up and come,所以前面要用过去完成时表示过去发生的动作。所以,选项A)could have slept是答案三)、对将来情况的虚拟 (表示将来的主观愿望 ):从句动词 "would/should/could/might + 动词原形 "(时间上较后 )(请注意:主句和从句的主语不相同 )。用 wish 表示对将来事 情的愿望。例:1. Iwishit would stopraining.( 虚拟动词would+ 动词原形stop)我希望雨能停止。(事实上雨还在下着呢 )2. Iwishyou would bequiet.(would +be)我希望

12、你安静一些。 (事实上那家伙还在吵着呢 )3. You wished she would arrive the n ext day.(would + arrive)你希望她第二天会到。(事实上她还没到)4. I wish she would cha nge her min d.(would + cha nge)我希望她会改变主意。(呵呵,女孩子可没那么容易就改变主意喔)5. He will wish we would joi n him the followi ng week.(would + joi n)(只是希望我们和他在一起,实际上还没在一起)四)、注意:1. 如果将wish改为过去式

13、wished,其后that从句中的动词形式不变。例如:I wished Ihad n't spe nt so much mon ey.我要是那时没有花掉那么多钱就好了。2. 如果that从句中用would , 一般表示对现状不满或希望未来有所改变或请求wishhe wouldan swer my letter.wishprices wouldcome dow n.wishyou wouldhelpme.wishyou wouldstopask ing silly questi ons.二、在表示建议、命令、要求、忠告等动词的后面的宾语从句中的虚拟语气由于这些动词本身隐含说话者的主观意见

14、,认为某事应该或不应该怎样,这些词语后面的“that从句应用虚拟语气,且均以“should+动词原形”表示这种语气,但事实上“shoulc常被省略,故此从句中谓语动词用原形,常用的此类动词有:表示 要求"的:ask, desire, request, dema nd, require, beg表示提议、劝告、建议"的:move, prpose, suggest, recommend, advise, vote表示 决定、命令"的:decide, order表示 主张"的: maintain, urge表示 同意、坚持"的:consent, in

15、sist例如:1. The doctor suggested that he (should) try to lose his weight.2. He in sisted that we (should ) tell him the n ews.3. When I suggested that he tryshavingcream, hesaid, “The razor andwater do thejob. ” 当我建议他用刮胡膏时,他说剃刀和水就行了 ”。)4. He pursued various theories forseveraldays un tilI suggested we

16、 takethe toy apartto see how it did work.(他费了几天功夫寻找理论根据,直到我建议拆开看看它是如何转动的。)5.0ne can suggest that stude nts should spe nd two or three years in an En glish speak ing coun try.(我们建议学生应在说英语的国家呆上两三年。)在表示命令、建议、要求等一类动词后面的从句中虚拟语气很普遍,其结构如:order, suggest, propose, require, dema nd, request, in sist, comma nd

17、, in sist +. (should) do6.I suggest that we (should) hold a meeti ng next week.7. He in sisted that he (should ) be sent there.但注意:在insist后的从句中,如果是坚持自己,用陈述语气,坚持别人做什么事情,用虚拟语气.8. she in sists that she is right.9. she in sisted that I should finish the work at once.或者说,suggest, in sist不表示建议或坚持要某人做某事时,即

18、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。10.The guard at gate in sisted that everybody obey the rules.判断改错:(错)11. Youpale face suggests that you(should) be ill.(对 )12. Your pale face suggests that you are ill.(错 )13.Iinsistedthatyou( should) bewrong.(对 )14.Iinsistedthatyouwere wrong.例题分析: 15.It is politely requ

19、ested by the hotel management that radios after 11 o'clock at night.A. were not played B. not be playedC. not to play D. did not play全句意思是:旅馆管理部门恳请客人晚上 11点后不要打开收音机”。句中的谓语动词request (请求)所引出的从句应当用虚拟语气,即动词原形或“should动词原形”。本句的主语从句中,主语radio是谓语动词play的客体,谓语应当用被动语态。所以,答案是C) not be played。在上述这类句子中不能用动词过去时形

20、式表示虚拟语气,所以A)不正确。选项B) not to play 是动词带 to 的不定式,不能在句中作谓语。选项 D)did not play 也是动词 play 的过去时形式,同样不 能在本句中作为虚拟语气来使用。而且,它是主动语态形式,而本题要用被动语态。练习:16). The chairman requested that .Athe members studied more carefully the problem B the problem was more carefulnessly studied C withmore carefulness the problem coul

21、d be studied D the members study the problem more carefully17). The committee recommends that the matter at the next meeting .Awouldbe discussedBwillbe discussedCbe discussed D may be discussed18). The doctor insisted that his patient .Athat he not work too hard for three months B take it easy for t

22、hree months C taking it easy inside of three months D to take some vacations for three months三、在expect, believe, think,suspect等动词的否定或疑问形式后的宾语从句中的虚拟语气在expect, believe, think, suspect等动词的否定或疑问形式后的宾语从句中,我们经常用“should动词原形(或完成形式)”,表示惊奇,怀疑,不满等。I never thought that he should be such a brave young soldier.我们

23、从来没想到他是个如此勇敢的小战士。练习:1)that the time will soon be ripe for intervention in Iran, they would be faced by a large army?AItis believed B Should they believe C They would believe D Ifthey would believe2)I think it advisable that he for Tokyo soon.Awillleave B may leaveCleaveDleaves四、would rather , would

24、sooner, had rather, would (just) as soon , would prefer 之后的宾语从句中的虚 拟语气would rather , would sooner, had rather, would (just) as soon, would prefer (希望)也用来表达主观愿望,它 们之后的宾语从句中需用虚拟语气。谓语动词用过去式表示现在或将来,用过去完成式表示与过去事实相反。表示”宁愿做什么 ”或" 对过去做的事的懊悔 "。(1).I would rather hecame tomorrow than today.(2).John

25、would ratherthat she had not goneto the partyyesterday evening.(3).Don' t live in theworld, I would rather(I would justassoon)you die.(4).I would rather yougo tomorrow.(5).I would rather everything hadn' t happenedin the past.(6).The manager wouldrather his daughter didnot work inthesameoffi

26、ce .经理宁愿她女儿不与他在同一间办公室工作。 7).To befrank , I'd rather you were not involvedinthecase.坦率地说,我希望你不要卷入这件事。(8).You don't have tobe in such a hurry. Iwould ratheryouwenton businessfirst .你没有必要这么着急,我宁愿你先去上班。(9).I'd rather you didn't make any comment on the issue for the time being 我倒希望你暂时先不要就

27、此事 发表意见。(10).Frankly speaking , I'd rather you didn't do anything about it for the time being 坦白地说,我宁愿你 现在对此事什么也不要做。(11).Would n'tyourather your child we nt tobedearly?为什么你不愿让你的孩子早点上床呢?(12 ).1 wouldjustas soo n you had returnedthebookyesterday .我真希望你昨天把这本书还了。注:若某人愿自己做某事,wouldrather后用动词原形

28、Iwouldratherstayathometoday.wouldrather. . than.中用动词原形Iwouldratherstayathomethango out today五、“ had hoped"后的宾语从句中的虚拟语气用“had hoped"表示原来希望做到而实际上未能实现的事情,其宾语从句的谓语用“would+动词原形”。I had hoped that she would go to the U.S. and study there, but she said she liked to stay in Chi na.我原本希望她到美国去念书,但她说她喜

29、欢留在中国。第二节:主语从句中的虚拟语气一、“ It is (was)+形容词(或过去分词)+that"结构中的虚拟语气在形如“It is (was)+形容词(或过去分词)+that”结构中,使用某些表示愿望、建议、请求、命令、可能、适当、较好、迫切、紧近、重要等形容词后的主语从句的谓语也用虚拟语气。其表达形式为should +动词原形或省略 should直接用动词原形(美国英语中省去 should)常用的形容词: * natural (自然的 ), appropriate (适当的 ),advisable (合适的 ), preferable (更可取的 ), better (更好

30、的 ) * necessary (必须的 ), important (重要的 ), imperative (急需的 ), urgent (急迫的 ), essential (本质的 ), vital (必 不可少的)* probable (很可能的),possible (可能的)* desirable (极好的advisable (合理的),compulsory (必须的), crucial (紧急的),desirable (理想的),esse ntial (必要的),imperative (迫切的),in credible (惊人的),necessary (必 要的),possible (可

31、能的),stran ge (奇怪的),urge nt (紧迫的)。常用的过去分词 (Past Participle):* required (需要的 ), demanded (要求), requested (被请求的 ), desired (要求)* s uggested (建议 ), recommended (推荐 )* orderd (命令 )1. It is necessary that we (should 可省略 ,下同) have a walk now.(necessary, should +have) (表示有需要去散步 ) 2.It was necessary that we

32、(should) make everything ready ahead of time.(necessary, should + make) (表 示有必要事先做好准备 )3. It is required that nobody (should) smoke here.(required, should + smoke) (表示要求不要在此抽烟 )4. It is important that every pupil (should) be able to understand therule of school.(important, should + be) ( 表示重要的是学生都能了

33、解校规)5. It's important that we (should) take good care of the patient.(important,should + take) (表示重要的是照顾好病人 )6. It is natural that she should do so. (形容词 natural, should+ 动词原形 do)7tis esse ntial that these applicati on forms be sent back as early as possible .这些申请表应尽早地寄回,这是很重要的。8tis vital that e

34、n ough money be collected to fund the project .重要的是募集足够的钱,为这个项目提供资金。9tis desired that we ( should)get everything ready this evening.希望我们今晚一切都准备就绪。注:在上述所列形容词后面用that引出的宾语从句中,谓语动词也要用虚拟语气。10.1don't think it advisable that Tom be assig ned to the job since he has no experie nee.汤姆缺乏经验,指派他做这项工作我认为是不恰当的。二、在It is +名词+ that的主语从句中的虚拟语气在It is +名词+ that的主语从句中,常用虚拟语气,表示建议、命令、请求、道歉、怀疑、惊奇等。这类名词有: advice , decision , desire , demand , idea, motion , order, pity , preference , proposal, recommendation , r

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