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《Grammar and usage(2)： Modal verbs： comparisons》新课标PPT课件优质课下载
2 Sports events
--- Grammar
Learning objectives(学习目标/要求):
1. To learn that modal verbs can be used to talk about ability, obligation, certainty or permission, to make requests, suggestions, offers and to give advice.
2. To understand that some modal verbs can be used with the continuous form and the perfect form to talk about current affairs or past actions.
Warming-up exercises
He ____ speak English fluently.
2. You _____ work hard to win the gold
medals.
3. ______we do some exercises this morning?
4. --- Might I watch TV after supper?
---Yes, you ________.
A. may B. must C. might D. could
5. ---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
must
can
Shall
A
C
一．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。