2022年高中英语语法——情态动词总结.docx
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1、精品_精品资料_情态动词总结I 情态动词的特点:1. 本身有词义.2. 不能独立作谓语.2. 后接动词原形一起构成谓语.3. 不随人称和数的变化.II 情态动词各自的基本意义及用法:1. can 与 could 用法对比点cancouldCan you lift this heavy box.I couldn understandwhat he1、表“才能”said at all.You can use a differe nt material inHe said I could borrow his bike.2、表“许可”stead.No, no, it can be true.We t
2、hought the story could not be true.3、“怀疑”What on earth can this mean.How could you be so careless.1.could 代替 can,表示语气更为动听.Eg. Could I use your bike.4、can 与 beYes, I canable to 区分2.can (能够) =be able to ( 仅表才能时 ),但 be able to表示一番努力后,才能做得到,且有更多的时态.2. may 与 might 用法可编辑资料 - - - 欢迎下载精品_精品资料_对比点maymight可编辑
3、资料 - - - 欢迎下载精品_精品资料_1 .表“询问”May I ?=Can 1 .2. 表“答应”You may take the boy there.Might I ?=Could I .(但比用 may 更客气 )He told me he might come.( might 与 told 相呼应 )可编辑资料 - - - 欢迎下载精品_精品资料_3 .表“可能”Im afraid he might not like thisShe may nor like this place.“或许”play.肯疋: Yes, you may.可编辑资料 - - - 欢迎下载精品_精品资料_1
4、. May 1 ?的答语.2. may 可表示期望或希望注:May you succeed .3. may (might ) 用于目的状语从否定: No, you mustn不行(语气强硬)No, you may not或 No,you better not.可编辑资料 - - - 欢迎下载精品_精品资料_The emperor gave themsome句.gold in order that theymightbegi n their work at on ce.3. must 与 have to 用法对比点musthave to可编辑资料 - - - 欢迎下载精品_精品资料_1. 表“必
5、需”(主观看法)必需.没有过去式, 可用于间接引语中.He toldme I must do accord ing to what he said.(客观需要)不得不,有多种时态.Itraining heavily, we cangonow.可编辑资料 - - - 欢迎下载精品_精品资料_2. 疑问句Must I . Yes, you must. 一Do you have to go today.可编辑资料 - - - 欢迎下载精品_精品资料_定)Yes, we do.No, you needn ./ you donYou don have to worry abouthave to.that
6、.(不必)4. need 与 dare 用法对比点n eeddareHe dare not say so.可编辑资料 - - - 欢迎下载精品_精品资料_1. 情态 v.+ 动词原形1) 否定式2) 疑问式He n eed not n eed ntgo.-Need we do it aga in.-No, you n eed ntdo it aga in.Dare she go out alone at ni ght.How dare you say Im un fair.If he dare do that, hebepuni shed.I dare say. 固定用法 可编辑资料 - -
7、- 欢迎下载精品_精品资料_可编辑资料 - - - 欢迎下载精品_精品资料_2. 实义 v. +to do 1 )肯疋式2) 否定式3) 疑问式He n eeds to go.He doesndoes not need to go.Does he n eed to do it aga in.No, he doesnneed ot do it aga in.He dares to say.He does no tdoes ntdare to say.If you dare to jump into the water fromhere, so dare I .可编辑资料 - - - 欢迎下载精品
8、_精品资料_3. did not n eed to可编辑资料 - - - 欢迎下载精品_精品资料_do表示过去没必要 做She didn need to attend the meetingyesterday, and she stayedwith her children.她没有参与 可编辑资料 - - - 欢迎下载精品_精品资料_5. should 与 ought to 用法对比点shouldought to可编辑资料 - - - 欢迎下载精品_精品资料_表劝说、建议You shouldliste nto the“有责任有必要”做某事You ought to finish your wor
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