2022年情态动词表语从句 .pdf
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1、一、情态动词一分类情态动词有四类:只做情态动词:must,can(could),may(might),可做情态动词又可做实义动词:need,dare 可做情态动词又可做助动词:shall(should),will(would),ought to 具有情态动词特征:have(had,has)to,used to 情态动词表猜测二位置情态动词有一定的词义,但并不完整,必须与动词原形一起构成谓语。I can see you.Come here.我能看见你,过来吧。He must have been away.他一定走了。What can I do for you?我能帮你吗?How dare you
2、 treat us like that!你怎能那样对待我们!三特点情态动词无人称和数的变化,情态动词后面跟的动词需用原形,否定式构成是在情态动词后面加not。个别情态动词有现在式和过去式两种形式,过去式用来表达更加客气,委婉的语气,时态性不强,可用于过去,现在或将来。情态动词属非及物动词,故没有被动语态。We cant carry the heavy box.我们搬不动那箱子。Im sorry I cant help you.对不起,我帮不上你。基本助动词与情态助动词最主要的区别之一是,基本助动词本身没有词义,而情态助动词则有自己的词义,能表示说话人对有关动作或状态的看法,或表示主观设想:Wh
3、at have you been doing since?(构成完成进行体,本身无词义)I am afraid I must be going.(一定要)You may have read some account of the matter.(或许已经)除此之外,情态助动词还有如下词法和句法特征:1)除 ought 和 used 以外,其他情态动词后面只能接不带to 的不定式。如果我们把 ought to 和 used to 看做是固定词组的话,那么,所有情态动词无一例外地只能接不带 to 的不定式:We used to grow beautiful roses.I asked if he
4、would come and repair my television set.2)情态助动词在限定动词词组总是位居第一:They need not have been punished so severely.3)情态助动词用于第三人称单数现在时的时候,没有词形变化,即其词尾无-s 形式:She dare not say what she thinks.4)情态动词没有非限定形式,即没有不定式和分词形式,也没有相应的动名词:Still,she neednt have run away.5)情态助动词的“时”的形式并不是时间区别的主要标志。在不少场合,情态助动词的现在时和过去时形式都可以表示现
5、在、过去或将来时间:Would you mind very much if I ask you to do something?She told him he ought not to have done it.6)情态助动词之间是相互排斥的,即在一个限定动词词组中只能出现一个情态助动词,但有时却可以与have 和 be 基本助动词连用:You should have washed the wound.Well,you shouldnt be reading a novel.四用法首先它是动词,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
6、种想法(如能,也许,敢)。用法是:情态动词+行为动词原形例句: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。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。情态动词数量不多,但用途广泛,主要有下列:can
7、(could),may(might),must,need,ought to,dare(dared),shall(should),will(would),have(to),had better.情态动词还有一个很重要的用法,即情态动词表推测情态动词表推测的用法小结(一)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)。(1)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。(2)It is cold in the room.They must
8、 have turned off the heating.屋里很冷,他们肯定把暖气关了。2.否定句中用 cant/couldnt(不可能),may not/might not(可能不)。(1)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。(2)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?)。(1)Could he have finished the task?他可能把任务完成了吗?(2)Can h
9、e 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。(二)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”。(1)She must/may/might/could arrive before 5.5:00 前她一定/可能/也许到。(2)She must/may/might/could walk miles and miles among the hills without meeting anyone.文档编码:CW3T6Y3N4O5
10、HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N
11、6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5
12、HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N
13、6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5
14、HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N
15、6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5
16、HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4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+be doing”或“情态动词+动词原形”。(1)He must/may/might/could be listening to the radio now.他一定/可能/也许正在听收音机。(2)He cant(couldnt)/may(might)not be at hom
17、e at this time.这个时候他不可能/可能不在家。(3)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”。(1)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。(2)The door was locked.He can(could)not/may(m
18、ight)not have been at home.门锁着,他不可能/可能不在家。(3)Can/Could he have gotten the book?难道他找到书了吗?注: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”。例如:(4)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)(5)She should/ought to have attended your birth
19、day 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。(6)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。五功能助动词(auxiliary)主要有两类:基本助动词(primary auxiliary)和情态助动词(modal auxiliary)。基本助动词有三个:do,have 和 be;情态助动词基本的有十四个:may
20、,might;can,could;will,would;shall,should;must,need,dare,used to,ought to.had better 上述两类助动词的共同特征是,在协助主动词构成限定动词词组时,具有作用词的功能:1)构成否定式:He didnt go and neither did she.The meeting might not start until 5 oclock.2)构成疑问式或附加疑问式:Must you leave right now?You have been learning French for 5 years,havent you?3)
21、构成修辞倒装:Nowhere can he obtain any information about his sister.Hardly had he arrived when she started complaining.4)代替限定动词词组:文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5
22、 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6
23、N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5
24、 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6
25、N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5 HS1I4I7N2X3 ZK9T5A6N6H4文档编码:CW3T6Y3N4O5
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