1、Grammar，情態(tài)動(dòng)詞用法，情態(tài)動(dòng)詞的語(yǔ)法特征，1)情態(tài)動(dòng)詞不能單獨(dú)謂語(yǔ)，除了ought和have以外，后面只有沒有to的不定式。2)情態(tài)動(dòng)詞沒有人稱、數(shù)的變化，但有些情態(tài)動(dòng)詞(如can、will)有一般和過去時(shí)態(tài)的變化。3)情態(tài)動(dòng)詞的“時(shí)態(tài)”形式不是時(shí)間差異的主要表現(xiàn)形式，在很多情況下，情態(tài)動(dòng)詞的現(xiàn)在和過去形式可以用來表示現(xiàn)在、過去和未來的時(shí)間。1.can 1)表的能力可以成為表的能力，意味著可以通過身體、精神或技術(shù)等做某事。I can climb this pole.he is only four，but he can read . fire cant destroy gold。can和

2、could:2)表猜測(cè)、可能性否定和疑問結(jié)構(gòu)中的Can the news be true？It cant be true。what can he possible mean？他可能是什么意思？可用于表示積極句子中的理論可能性(暫時(shí)可能性)。a house in the center of London can cost a lot of money .attending the ball can be very exceing。the road can be blocked .3)表示請(qǐng)求或允許(類似于may的意思)在口語(yǔ)中很常見。Can (May) I come in？我能進(jìn)來嗎？Can I

3、 smoke here？我能在這里抽煙嗎？2) could的主要用法是A. could是can的過去時(shí)態(tài)，表示與過去相關(guān)的能力，表示推測(cè)： eg . we all knew that the young man could nt be a doctor。B. could可以代表請(qǐng)求，“允許”，而不是can。你能機(jī)智地提問或發(fā)表意見嗎，Could you lend me your dictionary？Could I use your bike？Yes，you can . im afraid I could nt give you an answer today。can和be able to d

4、o之間的差異，時(shí)態(tài)：can有當(dāng)前時(shí)間和過去(could)，be able to do有多種時(shí)態(tài)。在未來的情況下，以及鄭智薰謂語(yǔ)動(dòng)詞中，應(yīng)該使用be able to do。e.g. so far，doctors have been able to do very little to treat(治療)this kind of disease(疾病).Can表示一致的能力，Be able to表示通過客觀能力和努力實(shí)現(xiàn)的能力1。I cantswim。But I am sure I will be able to swim through more practing . 2 . the fire s

5、pread through the hotel，But every one was able to get out 3 .when the boat sank he was able to swim to the bank，You cant be too careful she could nt but agree to my idea。the girl couldnt help crying。I cant thank you enough。the film couldnt be any worse。I burst out laughingI couldnt help it、Can或could

6、的否定形式是習(xí)慣短語(yǔ)Cant.too.Cant。enough.不管怎樣。即可從workspace頁(yè)面中移除物件。即可從workspace頁(yè)面中移除物件。不合分。即可從workspace頁(yè)面中移除物件。即可從workspace頁(yè)面中移除物件。鐵路超高but do不得不進(jìn)行Cant help doing，Cant help it必須進(jìn)行Cant.無(wú)法比較。即可從workspace頁(yè)面中移除物件。即可從workspace頁(yè)面中移除物件。但是(對(duì)于“最佳”)，may和might: may通常表示請(qǐng)求，允許；比Can更正式的May I come in？You may go now。(許可)b .表示發(fā)言

7、人的推測(cè)，“也許”:一般只用于正面和負(fù)面的句子。eg .-I believe the man is from England。-but I may be wrong。the guest may arrive this afternoon。在疑問句中表示可能性can。示例：Where can he be？他會(huì)在哪里？c .表示祝愿。但： eg. May you succeed！May you have a good journey！Might被：多人用于間接引語(yǔ)中，表示過去的可能性和允許。 she said that he might take her bike。她說她可以用她的自行車?，F(xiàn)在的許

8、可比may更委婉，一般用于疑問句(包括間接疑問句)，不用于肯定句或否定句。 Might I have a word with you？我能和你談?wù)剢?？you may well be right there is nothing to do，so I may as well go to bed。the film is so boring，And we might as well not have come to see it。may well最有可能是may/might as well，Might as well have done是May.do/be.回答愿望，may引起的問題時(shí)，否定詞是mu

9、st not，意思是“許可渡邊杏”、“渡邊杏”、“渡邊杏”。梅I comin？Yes，you may。否，you cant no，you may not。no，you mustnt no，youd better not。will和would:1。will是助動(dòng)詞還是情態(tài)動(dòng)詞？威爾是用來構(gòu)成未來的助動(dòng)詞。用于表示“意志”、“決心”、“請(qǐng)求”的情態(tài)動(dòng)詞。Would也是如此。Eg. I will you something important。讓我告訴你一些重要的事情。(語(yǔ)調(diào)動(dòng)詞)，will you tell her that im here？請(qǐng)告訴我我在這，好嗎？(模態(tài)動(dòng)詞)，If you giv

10、e him time，Tom will talk and talk for hours。every Saturday evening they will play chess togeter the door wont open ill do my best to help you。will you please give me a message when you see him？-write to me when you get home。-I will，重復(fù)習(xí)慣性總是，總是，最終，表示功能可以或行的意向，第二人稱，詢問對(duì)方的意向或要求對(duì)方回答命令型，Would表示鄭重的要求或邀請(qǐng)(第二人

11、稱)will請(qǐng)幫幫我們，好嗎？When I had some troubles，he would encourage me。we all tried to atop him smoking in bed but he woulden?！斑^去的習(xí)慣，意志”是：“Would和Used to do是“過去經(jīng)?！?，Would -過去習(xí)慣的動(dòng)作(現(xiàn)在可能有這種習(xí)慣)used to do-過去習(xí)慣的動(dòng)作和狀態(tài)(現(xiàn)在沒有這種習(xí)慣)，E.g. He，狀態(tài)，shall和should:1。shall在構(gòu)成來世時(shí)用來構(gòu)成助動(dòng)詞。Shall用于征求對(duì)方的意見，“決心”表示是情態(tài)動(dòng)詞。eg : perhaps I sh

12、all pay a visit to England this winter?？赡苓@個(gè)冬天去英國(guó)觀光。(構(gòu)成一般未來，助動(dòng)詞)，Shall we go by train，Mom？媽媽，坐火車去嗎？(用于征求對(duì)方意見的模態(tài)動(dòng)詞)I shall go at once。我必須馬上去。(表“決心”，情態(tài)動(dòng)詞)，1)第1，第3人稱，用來征求對(duì)方的意見，What shall I wear on the journey？肖恩we dance？2)shall用于第二人稱時(shí)間表、承諾、警告、命令和威脅。”應(yīng)該是可能的?！癷f he passes the examination，he shall have a h

13、oliday。you shall have it back tomorrow。3)第二、第三人稱用于法律和法規(guī)要求等。應(yīng)該，應(yīng)該”its required in our regulation that students shall go to school on time . persons under 18 shant be employeed in night work .2 .should表示義務(wù)、建議、建議等，表示“必須”。(ought to)students should respect teachers。the boys should nt be playing footpball

14、；they should be at school . its 43336930，they should be in new York by now . he ought to succed，As he is so diligent。it is strange that it should be so hot today。I dont understand why she should have made such a mistake。should it rain tomorrow，the meeting will be postponed。建議、建議、義務(wù)、責(zé)任、一般、常識(shí)性的推測(cè)(正常情況

15、下)實(shí)際上與疑問詞一起使用，表示思考、好奇、驚訝等“最終”，在條件語(yǔ)句中“在情況下”，must和haveto，1.must、yes、you must.no、youneed nt、I dont like this TV set。web must buy a new one。there was no more bus。they had to walk home。2.表示“必需”的意思時(shí)，must和haveto略有不同。Must強(qiáng)調(diào)主觀意見，haveto強(qiáng)調(diào)客觀要求。另外，haveto可以用于更多時(shí)態(tài)。youmustbethenewtearcher . hemmustbejecting . ther

16、eisnoboyhere . theymusthaweeall gone home。3.must表示對(duì)某人某事的推測(cè)，“肯定”，“肯定”通常用于肯定的句子。must have done、he must come and worry her with question、just when she was busy coking the dinner .of course，After I gave her my advice，she must go and do the opposite。how old are you，madam？If you must know，im twice my sons age，4。must表示“hansako，hansako，dare”，表示做不愉快的事，need和dare，實(shí)際動(dòng)詞，模態(tài)動(dòng)詞，實(shí)際動(dòng)詞和情態(tài)動(dòng)詞，積極文章，真實(shí)，愛，e . g . she needs tes，e . g . she need stay at home today . e . g . he dare jump from the high wall。疑問，e . g . do