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《Grammar and usage(2)： Modal verbs： comparisons》优质课教案下载
Teaching procedures:
Individual learning tasks
Task 1 Warming-up exercises
1. Mr Zhang ________come to the party, but perhaps he will go to see his father.
A. should B. must C. may D. ought to
2. ---May I pick a flower in the garden? ---____________.
A. No, you need B. No, please C. No, you mustn’t D. No, you won’t
3. ---________we clean the classroom before class? ---No, you needn’t.
A. May B. Must C. Can D. Will
4. The teacher is speaking slowly and clearly so that he __________make himself understood.
A. must B. may C. can D. shall
Task 2 General introduction
A modal verb does not express action or state, but expresses only the attitude of the
speaker. The chief modal verbs are: can (could), may( might), must, ought to, need, dare, should, would, shall and will.
情态动词的语法特征
★情态动词表示说话人对某一动作或状态的态度，可以表示“可能”、“可以”、 “需要”、“必须”或“应当”等之意。
★ 情态动词没有人称和数的变化。
★ 情态动词不能单独作谓语动词，必须和不带to的不定式连用构成谓语动词。
情态动词的语法功能
We can use modal verbs to talk about:
?ability?能力?make requests?提出请求?obligation?义务,责任?make suggestions?提出建议certainty?确定 make offers 提供帮忙?permission?允许?give advice?提出忠告Classroom cooperative learning
1. can/could/be able to
(1) can表示本身所具有的能力或潜能，could是其过去式。
Rose _________cook meals for herself 2 years ago.
(2) 表示“推测”，用于疑问句中表示可能；用于否定句中表示“不可能”，对现在或过去情况表示判断；用于肯定句中时，表示“有时候会、往往会”。