Revision: Module 5 Rules and suggestionsYou mustn’t park your car
shouldn’t … can’t … …You can park your car
may … must … … 123456情态动词本身有一定的含义,但不能单独作谓语,后跟行为动词原形一起构成谓语,表示说话人的语态和情态
情态动词没有人和数的变化
can, could, may, might, shall, should, must, need, dare, ought to, will, would
, used to
点拨: 此句中的 could 表示委婉的语气,而不是表示过去时态
但回答时应用 can ,表示能够干某事
--- Could you cross the street here
--- Of course you____ A
could B
be able to D
willB2
Some people think trees __ on Tree Planting Day only
should be planted B
should plant C
should be planting D
be planted 点拨:表“义务”和“应该”时,用 should
情态动词的被动语态为:情态动词 + be +done
--- Must I do the work now
--- No, you ____
You may do it later
can’t B
mustn’t C
needn’t D
shouldn’t c点拨:用 must 引导的一般疑问句,其回答形式:肯定回答用 must , 否定回答用 needn’t
You _______