情态动词can--may--must的用法--中考语法解析课件PPT

这是一份情态动词can--may--must的用法--中考语法解析课件PPT，共16页。PPT课件主要包含了may的用法，Answers ，must的用法，Can，may，can’t，must等内容，欢迎下载使用。
情态动词后接动词原形;没有人称和数的变化;不能单独作谓语, 与后面的动词共同作谓语;其否定形式在后面直接加nt。
Mdal verbs情态动词
can / can ntmay / may ntmust / must nt
can / can nt
1. 表示能力(会) Mary can speak English, but she can nt speak French.2. 表示允许(可以) Can I use yur dictinary? I can’t find mine.3. 表示推测 (可能 ) ----通常用于否定形式 He can’t be in the ffice. I saw him g ut just nw.
1. S1 ___ Kitty ____? S2 _____________.
2. S1 ____ Kitty ____? S2 _____________.
Can spell
Yes, she can
Can add
N, she can’t
3. S1 ____ Derek ________? S2 _____________.
4. S1 ____ Kitty _______? S2 _____________.
Can subtract
Yes, he can
Can multiply
may / may nt
1. 表示允许(可以) May I cme in?2. 表示推测 (可能) ----通常用于肯定形式 She may be still waiting fr us.3. 表示祝愿 May yu have a happy weekend.
●以may开头的疑问句，其否定回答用can’t或 mustn’t。--May I g hme nw?--Yes, yu may. N, yu can’t.
1. May I carry yur bag fr yu?2. May I pen the dr?3. May I get yu a chair?4. May I switch n the TV?5. May I brrw yur new bicycle?
must / must nt
1. must表示必须 Yu must d yur hmewrk first.2. must表示 一定(肯定性推测 ) He must be at hme.
1. mustn’t表示禁止(不准；不允许) Yu mustn’t smke here.2. 以must开头的疑问句，其否定回答要用needn’t. -- Must I clean the classrm nw? -- Yes, yu must. N, yu needn’t.
must nt的用法:
What d the signs mean? D yu knw?
Yu must nt cycle.
Yu must be careful.
Yu must turn left.
Yu must nt enter.
Yu must pay ten yuan.
Yu must keep silent.
Yu must nt turn right.
Yu must nt smke.
Ⅰ.用适当的情态动词填空：。1.I can play ftball. __________yu swim?2.Dn’t wrry. Yu ________ return me this bk grandma is ill. Yu _______ talk s ludly here .4.I can’t play with yu. I __________finish my hmewrk get up early tmrrw. because I have a please pen the windw?