情態(tài)動(dòng)詞表推測(cè)用法

1、關(guān)于情態(tài)動(dòng)詞表推測(cè)的用法第一張，PPT共十五頁(yè)，創(chuàng)作于2022年6月 1.My grandma is over eighty,but she can read without glasses.2.Can you wait a moment please? 3.Excuse me,coule you help me please? 4.Accident can happen to any drunken driver. 5.It cant be my father.He is now in England.表能力表請(qǐng)求，許可可能性Can &could第二張，PPT共十五頁(yè)，創(chuàng)作于2022年6月M

2、ay &might1.可能性He may be very busy now.He might be very busy now.May表許可- He may go now. May I go now?祈使句- May you succeed! May you have a nice trip!第三張，PPT共十五頁(yè)，創(chuàng)作于2022年6月Will &would That bag looks heavy.Ill help you with it. Thanks for lending me money.Ill pay you back on Friday.This old man is stran

3、ge.He will sit for hours without saying anything. We would sit around Grandpa after supper,listening to his stories.Will you come this way,please?Would you open the window?意志，愿望，決心習(xí)慣請(qǐng)求（用于第二人稱）第四張，PPT共十五頁(yè)，創(chuàng)作于2022年6月Shall &should Shall we put off the sport meeting until next week?Shall Tom go there wi

4、th me tomorrow?You shall if you dont work harder. He shall have the book when in finish reading it.請(qǐng)求征求意見(jiàn)警告允諾威脅等第五張，PPT共十五頁(yè)，創(chuàng)作于2022年6月Must&cant規(guī)定、指令 You must have a passport if you want to go abord.主觀的命令、禁止 You can go out with your friend but you must come back before 11 at night.You must be ill.I c

5、an see it from your face. He cant be at home.I saw him in the classroom just now.推測(cè)第六張，PPT共十五頁(yè)，創(chuàng)作于2022年6月Can &could 表能力（ability）表請(qǐng)求&允許（request &permission）可能性（possibility）Can用于肯定，理論上“可能”Cant用于否定句中，主觀猜測(cè)May&might表示可能性，might不是may的過(guò)去式； may表許可（permission）May用于祈使句，表祝愿Will&would表意愿Will&would表習(xí)慣表請(qǐng)求Shall和sho

6、uldShall的用法征求意見(jiàn)（第一/三人稱）命令，警告等（第二/三人稱）Must&cantmust“命令”，“推測(cè)”A，規(guī)定，指定B，主觀的命令，禁止C，猜測(cè)，（語(yǔ)氣肯定）Cant用于否定句Should表勸告，建議，命令及合理推斷第七張，PPT共十五頁(yè)，創(chuàng)作于2022年6月情態(tài)動(dòng)詞表示推測(cè)1）might,may Might-“也許” May-“可能”Eg：He might be right.他也許是對(duì)的。 He may not come tonight.他今晚可能不來(lái)否定might not 否定may not表示主觀的推測(cè),一般用于肯定句第八張，PPT共十五頁(yè)，創(chuàng)作于2022年6月2）can

7、 Can 用于主觀推測(cè)時(shí)，常用于否定句（cant不可能）和疑問(wèn)句， 疑問(wèn)句中也可以用could Can用于肯定句時(shí)，表示一時(shí)的，客觀的可能性。Eg:-Can he be at home now? 他現(xiàn)在在家嗎？ -No,he cant be at home,since I met him in the street just now. 不，他不可能在家，因?yàn)槲覄偛挪糯蠼稚嫌龅剿恕?Could she be chatting on the internet? 她現(xiàn)在可能在網(wǎng)上聊天嗎？ 第九張，PPT共十五頁(yè)，創(chuàng)作于2022年6月3)Should 和ought to 表示根據(jù)常規(guī)、事理、經(jīng)驗(yàn)做出

8、的判斷，“想必”“應(yīng)該”。Eg：Today is Sunday. Our teacher should be at home. That ought to be enough food for the four of us.4）must表主觀的推測(cè)“一定”，語(yǔ)氣十分肯定。其否定式為cant“不可能”，不用mustnt， mustnt表示禁止，不允許，語(yǔ)氣十分強(qiáng)硬。Eg：He must be in the classroom now. You cant have known the truth. Students mustnt smoke.第十張，PPT共十五頁(yè)，創(chuàng)作于2022年6月一些情態(tài)動(dòng)詞

9、后接完成式是對(duì)過(guò)去情況的肯定或否定的推測(cè)或推斷。 must have done sth may have done sth might have done sth cant have done sth may not have done sth might not have done sth第十一張，PPT共十五頁(yè)，創(chuàng)作于2022年6月還有一些情態(tài)動(dòng)詞后接完成式表示動(dòng)作按理應(yīng)在過(guò)去發(fā)生，但事實(shí)上卻沒(méi)有發(fā)生。1）“could +have done sth” “本可能/本可以 做某事”couldnt +have done sth “本不可能/本不可以 做某事”Eg ：He thought a ti

10、cket when he could have entered free. I didnt see her in the meeting room this morning.She couldnt have spoken at the meeting2)“should/ought to +have done”本應(yīng)該做，本應(yīng)該發(fā)生 “should/ought to +have done”本應(yīng)該做，本應(yīng)該發(fā)生Eg：I ought to have said it to her in a calmer mood. He shouldnt have broken the red light.第十二張，P

11、PT共十五頁(yè)，創(chuàng)作于2022年6月3)need后接完成式主要用于否定句中。 “neednt + have done ”表示本不必要做某事Eg： You neednt have watered the flowers,for it is going to rain.-Isnt that Anns husband over there?No,it be him-Im sure he doesnt wear glasses.A.cant B.must not C.wont D.may notHe have completed his work;otherwise ,he wouldnt be enj

12、oying himself by the seaside.A.Should B.must C.wouldnt D.cant第十三張，PPT共十五頁(yè)，創(chuàng)作于2022年6月-Excuse me.Is that the right way to the Summer Palace?-Sorry,I am not sure.But it be.A.Might B.will C.must D.can-Cathrine,I have cleaned the room for you.-Thanks.You it.I could manage it myself. A.neednt to B.neednt have done C.mustnt do D.shouldnt have doneHe paid for a seat,when he have entered f