![译林版六下英语Unit 4 Road safety 情态动词课件PPT01](http://img-preview.51jiaoxi.com/1/4/12788684/0/0.jpg?x-oss-process=image/resize,w_794/sharpen,100)
![译林版六下英语Unit 4 Road safety 情态动词课件PPT02](http://img-preview.51jiaoxi.com/1/4/12788684/0/1.jpg?x-oss-process=image/resize,w_794/sharpen,100)
![译林版六下英语Unit 4 Road safety 情态动词课件PPT03](http://img-preview.51jiaoxi.com/1/4/12788684/0/2.jpg?x-oss-process=image/resize,w_794/sharpen,100)
![译林版六下英语Unit 4 Road safety 情态动词课件PPT04](http://img-preview.51jiaoxi.com/1/4/12788684/0/3.jpg?x-oss-process=image/resize,w_794/sharpen,100)
![译林版六下英语Unit 4 Road safety 情态动词课件PPT05](http://img-preview.51jiaoxi.com/1/4/12788684/0/4.jpg?x-oss-process=image/resize,w_794/sharpen,100)
![译林版六下英语Unit 4 Road safety 情态动词课件PPT06](http://img-preview.51jiaoxi.com/1/4/12788684/0/5.jpg?x-oss-process=image/resize,w_794/sharpen,100)
![译林版六下英语Unit 4 Road safety 情态动词课件PPT07](http://img-preview.51jiaoxi.com/1/4/12788684/0/6.jpg?x-oss-process=image/resize,w_794/sharpen,100)
![译林版六下英语Unit 4 Road safety 情态动词课件PPT08](http://img-preview.51jiaoxi.com/1/4/12788684/0/7.jpg?x-oss-process=image/resize,w_794/sharpen,100)
小学英语新版-牛津译林版六年级下册Unit 4 Road safety课文内容课件ppt
展开can, culd, may, might, will, wuld, shall, shuld, must和ught称为情态动词。它们和主要谓语动词一起构成谓语。绝大多数情态动词的意思可以划分为两类。一类是表示可能性:情态动词可以用来表示某种情况是肯定的、或很可能的、或可能的、或不可能的。
另一类意思涉及必须做某事或允许做某事之类的意思:情态动词可以用来表示某人必须做某事、某人能做某事,如果某事发生(或不发生)就会好一些,或者某事是许可或禁止的。
a完全有把握(肯定的或否定的)
shall用于第一人称:I/We shall be away tmrrw.I shan’t be late n Wednesday.2. will 用于各种人称:That’s the phne. That’ll be Tny.Things will be right.It wn’t rain this evening.Yu’ll be right.
3. must只用于肯定句中:He decided Franklin must be suffering frm a bad cld.4. can’t和culdn’t表示现在或将来不可能,culdn’t用于间接引语中,表示过去不可能:1)That can’t be Mr. Smith—he’s in New Yrk.2)I knew it culdn’t be Mr. Smith.3)He culdn’t be at hme.5. wuld, wuldn’t 用于间接引语中,表示过去可能或不可能:I tld yu wuldn’t be ready in time.
1. shuld, shuldn’t, ught t, ughtn’t t, may well (很有可能), may, may nt (可能、可能不) : 1)She shuld/ught t be here sn.2)It shuldn’t/ughtn’t t be difficult fr yu t wrk ut the prblem.3)We may be buying a new flat.4)The list may nt be cmplete.5)“I think it’s ging t rain.” “Yu may well be right—the sky is really black.
might, mightn’t, culd,它们不是may, can的过去式,它们都可以用来谈论现在和将来, culd比may 和might更不可能:1)I might see yu again—wh knws?2)Things might nt be as bad as they seem.3)We culd all be millinaires ne day.
的 特点1)有特定的词义2)没有人称和数的变化3)其后加动词原形(d), have dne ,be ding.
1。区别must / have tMust表示人在主观上认为的必要、必须、一定要Have t表示受环境或习惯支配的客观必要 “不得不”,能用于更多时态。 1)Sldiers ________bey fficers. 2)It’s raining utside.We_________stay at hme.3As he had brken his leg, he ______lie in bed.
易混易错用的情态动词
2。表示能力: can, culd, be able t *be able t 能用于各种时态。 can / culd 只能表示现在或过去的能力。 *was / were able t : “设法做成某事” 相当于 managed t d sth. succeeded in ding sth.。Eg.Thugh they were trapped in the big fire, they _________escape.
were able t
3。can (用于疑问句中), can’t, culd, may, might, shuld, ught t, will, must + have + 过分可以表示对过去发生的事情作出推断:Where can he have gne?We can’t have taken it upstairs this mrning!I may / might/ culd have cme t a wrng cnclusin.4. That was a bad place t g skiing. Yu might have brken yur leg.
二、表示必须和允许做某事
情态动词可表示必须和允许做某事的各种含义。情态动词的这类用法很重要,可以有礼貌地表达请求、建议、邀请和批示。a must, will, need (用于疑问句中)强调必要性;shall(用于二、三人称表示说话人的意愿、承诺、命令或法律、规章、制度上要求必须做的事情) :
Teachers f English must be in the classrm by sales staff will arrive fr wrk by I get a visa fr Hng Kng?Yu shall have the bk as sn as I finish it.He shan’t cme here.He shan’t pass the math exam.A recrd shall be kept f the number f students attending each class.
8. “Can smene help me?” “I will.”9. I’ll definitely pay yu back next week.10. ‘I’ll kill her fr this,’ Sue said.11. “Give me a kiss.” “N, I wn’t.”12. The car wn’t start.wuld指过去愿意;wuldn’t指过去拒绝:My husband wuld d the dishes, but he wuldn’t ck.I asked him plitely, but he wuldn’t tell me.The car wuldn’t start this mrning.
Yu mustn’t drive fast. There’s a speed limit.Magazines may nt be taken ut f the library.Yu can’t cme in here withut permissin.
c 禁止 mustn’t, may nt, can’t 可以表示禁止,may nt非常正式,在非正式文体中can’t更常见;mustn’t比may nt 更为强调:
新版-牛津译林版六年级下册Unit 4 Road safety背景图课件ppt: 这是一份新版-牛津译林版六年级下册Unit 4 Road safety背景图课件ppt,共12页。PPT课件主要包含了must,can,could,may,should ,Rules 等内容,欢迎下载使用。
英语六年级下册Unit 4 Road safety多媒体教学课件ppt: 这是一份英语六年级下册Unit 4 Road safety多媒体教学课件ppt
新版-牛津译林版六年级下册Unit 4 Road safety教课内容ppt课件: 这是一份新版-牛津译林版六年级下册Unit 4 Road safety教课内容ppt课件,共19页。PPT课件主要包含了Let’s try,Let’s act等内容,欢迎下载使用。
![英语朗读宝](http://img.51jiaoxi.com/images/12517764001b65717e8cc5a6325badce.png)