专题归类复习一。
情态动词should与could的用法。
语法讲解。1．should是情态动词shall的过去式，但有时并不表示过去。
1)表示委婉的劝告或建议，意为“应该”。如：
you should hand in your composition at once.
你应该立刻交上你的作文。
2)表示可能性或推断，意为“可能；应该”。如：
i think they should be there now.
我想他们现在应该在那里。
3)用于特殊疑问句中，表示意外、惊奇、不能理解等强烈感情。如：
how should you know that?
你是怎么知道那件事的？
what should you do to relax?
你该做什么来放松呢？
2．could是情态动词can的过去式，但有时并不表示过去。
1)表示提议，比can更客气、委婉。
i could do the shopping for you, if you are tired.
如果你累了，我能帮你买东西。
2)表示请求，语气比can更客气、委婉。
could you show me the way to the hospital?
你能告诉我去医院的路吗？
语法精练。.单项选择。
) students at least one hour
a day for sports.
a．would
b．might
c．shouldd．could
) tell me how to get to the post
office?
a．mustb．need
c．couldd．should
)3.—when can i come for the photos? i need them
tomorrow afternoon.
they___be ready by 12：00.
a．canb．should
c．might d．need
)4.—could i borrow your dictionary?
of course you___
a．canb．must
c．should d．will
) loves playing
basketball.
a．maybe b．may be
c．may is d．may not
) the new traffic law and learn how
to protect ourselves.
a．will b．would
c．shall d．should
)7.—could you please help me do my homework?
．you___do it by yourself.
a．could; may
b．couldn't; should
c．can't; should
d．can't; may
)8.—how was the youth club last night, mark?
it was great .
a．must b．can
c．should d．may
.根据句意用should或could填空。
1．sally___make dumplings by herself when she was
only five years old.
2．in school, all the classmatesget on well
with each other.
3．you___call her if you h**e something important
to tell her.
4．you___not drive after drinking.
5i use your mobile phone，please?
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