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北师大2003课标版《Extension and Reflection》PPT课件优质课下载
and reduction
The houses _____________(make)
strong enough , but people didn’t have more awareness of disaster prevention.
The deaths _____________ (decline),but we weren’t so experienced in disaster forecast.
The 2008 Wenchuang earthquake _______the biggest one in China in the past ten years.
could have been made
might have been declined
must be
Modals are auxiliary (辅助的) verbs used to give a judgment or interpretation about an action or state.
Definition
Modals
Full modals
Semi---modals
When do we use Modals?
A. ability and willingness
B. permission and request
C. obligation and necessity
D. possibility and probability
When we want to express
What ideas do the following Modals get across?
He can swim , so he was able to survive when he fell into the river.
When I was younger , I could touch my nose with my feet.
I won’t lower the price , and that’s that.
I tried to persuade him , but he wouldn’t cooperate
5 .May /might I borrow your newspaper for a moment?