情态动词教学案.doc

情态动词教学案.doc英语高考专题复****讲与练
情态动词
情态动词基本用法:
态词 情动
用法
否定式
疑问式与简答
+have done
must
必须，应该（表主观
要求）
肯足，想必（肯足句 中表推测）
must not/mustn't do
Must...do...?
Yes,... must.
No,.. .needn't/don't have to
will
意愿，决心
请求，建议，用在问 句中would比较委婉
will not/won't do
Will...do...?
Yes,... will.
No,... won't
would
would not/wouldn,t do
shall
将要，会
用于一二人称征求对
方意见
用于二二人称表示许
诺命令
shall not/shan't do
Shall...do...?
Yes,... shall.
No,... shan't
should
应当，应该（表义务
责任）
本该（含有责备意味）
should not/shouldn' t do
Should...do...?
ought to
应当（表示义务责任， 口语中多用should
ought not to/oughtn,t to do
Ought...to do...?
Yes,... ought.
No,... oughtn't.
can
能力（体力，智力，
技能）
允许或许可（口语中
常用）
可能性（表猜测，用 于否定疑问句中）
can not / cannot /can't do
Can...do...?
Yes,... can.
No,...can't.
could
couldn't do
may
可以（问句中表示请 求）
可能，或许（表推测）
祝愿（用于倒装句中）
may not do
May...do...? Ye,...may.
No,.. .mustn't/can't
might
might not do
Might...do...?
Yes,... might No,...might not.
have to
只好，不得不（客观 的必须，有时态人称 变化）
don't have to do
Do...have to do...?
Yes,...do. No,...don't.
dare
敢（常用于否定句和 疑问句中）
dare not/daren't do
Dare...do...?
Yes,... dare.
No,... daren't.
need
需要
必须（常用于否足句 和疑问句中）
need not/needn't do
Need...do...?
Yes,... must.
No,... needn't
used to
过去常常（现在已不 再）
used not/usedn't/usen't to do didn't use to do
Used...to do...?
Yes,...used.
No,...use(d)n't
Did...use to do...?
Yes,... di