七年级报纸课件第20期
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【操练场】
5. Children must ________ tidy ________ up their rooms by themselves. 6. Don’t smoke in the gas station, because it can________ ________. start ________ a fire
补充: 1. may be和maybe的区别:may be是“情态动 词+ 系动词be”结构,表示“可能是”,而 maybe作副 词,表示“大概;也许”。 例如: He may be in the room. 他可能是在房间里。 Maybe he is in the room. 也许他在房间里。
2. 在请求师长的许可时,应使用may表示礼貌或敬 意;当与同龄伙伴说话时,也可使用 can表示请求 对方允许 3. must的一般疑问句及其回答形式为: —Must I...?我必须 吗? —Yes, you must. / No, you needn’t. 是,必须的。/不,没必要。 例如: —Must I wash my clothes by myself? 我一定要自己洗衣服吗? —Yes, you must. / No, you needn’t. 是,必须的。/不,没必要。
3. must 和 must not (1) must用来制定规则或发出命令,意为“必须” 。使用must的句子常常具有某种强制力。 例如: You must apologize to her. 你必须向她道歉。 (2) must 的否定形式是 must not / mustn’t,表示绝 对禁止,意为“不准”。 例如: You must not / mustn’t speak loudly in the hospital. 你不准在医院里大声讲话。
4. mustn’t you here smoke (.) You mustn’t smoke here. ___________________________________________ 5.finish now must homework my I (?) Must I finish my homework now? ___________________________________________
May I come in? 6. —________ —Yes, you may. Come in, please. can’t see anything. 7.A blind man________ 8.Please ask the policeman, because he ________ must know the way to the hospital. I’m sure. 9. — May I use your telephone? may not —No, you________. may 10. Benny________ come to see us tomorrow, but he isn’t very sure.
(3) may构成的一般疑问句及其回答形式为: —May I…?我可以……吗? —Yes, you may. / No, you may not. 是的,你可以。/不,你不可以。 例如: —May I open the window? 我可以开窗户吗? —Yes, you may. / No, you may not. 是的,你可以。/不,你不可以。
III.根据文段内容,用适当的情态动词填空。
can’t Water is valuable. People (16) ________ live without it. How (17) ________. we save it at home? can First, we (18) ________ must remember to turn off the can tap when we don’t use it. Second, we (19) ________ water flowers with used water. Third, we (20) can take a shower instead of having bath. We ________ (21) ________ must save anyway or we won’t have clean water to use in the future (将来).
七年级第20期
For unit 6
L/O/G/O
Grammar
情态动词
一、含义 情态动词是一种本身有一定的词义,表 示说话人的情绪、态度或语气的动词,无人 称和数的变化,不能单独使用,必须与其后 的动词原形构成谓语。
பைடு நூலகம்
二、情态动词用法 1. can 和 cannot (1) can表示具有某种能力,意为“能;会”,相当 于be able to。 例如: He can speak English.他会说英语。 (2) can表示许可,意为“可以”,相当于may, 它的否定形式是cannot/can’t。 ① You can read this book. 你可以读这本书。 ② You cannot / can’t drink the wine. 你不可以喝葡萄酒。
III.根据对话内容,用合适的情态动词填空。必要 时用否定。 A: Listen, they are having a nice evening now. B: Someone is singing. Who (11) _____ can it be? must be Li Ping. She has a good voice. A: It (12) _____ B: It (13) _____ can’t be her. She is ill and in hospital now. A: But I heard she came back from the hospital yesterday. She (14) _____ may be well now.
II.根据汉语填入适当的情态动词,使句子完整、 通顺。 6. —你会弹吉他吗? Can you play the guitar? —_____ —是的,我会。 —Yes, I_____. can 7. 我会说三门外语。 I_____ can speak three foreign languages.
(3) can构成的一般疑问句及其回答方式为: —Can I…?我能/可以……吗? —Yes, you can. / No, you cannot / can’t. 是的,你能/可以。/不,你不能/不可以。 例如: —Can you swim?你会游泳吗? —Yes, I can. / No, I can’t. 是的,我会。/不,我不会。
2. may 和 may not (1) may表示许可或请求对方允许,意为“可以; 可能;或许”。 例如: You may play football this Sunday. 这个周六你可以踢足球。 (2) 否定形式为may not,意为“不可以”。除了 may not以外,can’t、mustn’t都可以表示 “不可 以”。但mustn’t语气更强。 例如: You may not tell him about the answer. 你不可以告诉他答案。
II.按要求对下列句子进行转换,缩写算一词。 11. The students can make the model plane. (对划线部分 提) What ________ can the students________? do ________ 12. May I go to play football with my friends, Dad? (作否 定回答) you ________ may ________. not No, ________ 13. Daisy can repair the machine. (改为否定句) Daisy________ can’t repair the machine. 14. He can use your mobile phone. (改为一般疑问句) ________ Can he ________ use your mobile phone? 15. You must do things like him. (改为否定 句) mustn’t ________ do You________ things like him.
实战演练
I.根据句意使用can,may,must及其否定形式填 空。 can 1. — What ________ I do for you? —I want some bananas. 2.Tom ________ can’t ride a bike, but he can drive a car. must see a doctor. 3.You are ill, Tom. You________ mustn’t play basketball in the street. 4.Children________ may 5.If you are not careful, a car________ hit you.
Unit 6 短语聚会(For Grammar-More practice )
6. switch on 7. start a fire 8. make sure 9. go out alone 10. in the fridge 开(电灯、机器等)
引起火突 确保 独自走出去
在冰箱里
【操练场】
根据句意选择适当的短语并用其正确形式填空, 补全句子 1. Please ________ the lights when you switch ________ off leave. electrical ____________ appliances 2. You can find a lot of___________ such as the fridge in the kitchen. air conditioner 3. The room is so cool with this_____ __________. safety ________ tips ,and you, 4. There are some________ d better read them before you use this machine.
Unit 6 短语聚会(For Grammar-More practice )
1. 2. 3. 4. 5. switch off tidy up air conditioner safety tips electrical appliance 关(电灯、机器等) 收拾妥;整理好 空调 安全提示 电器
第四课时 (Grammar)
I.连词成句。 1.the you be long after must hungry walk (.) You must be hungry after the long walk. ___________________________________________ 2.for I do can you what (?) What can I do for you? ___________________________________________ 3.may visit tomorrow the Movie Museum I (?) ___________________________________________ May I visit the Movie Museum tomorrow?
8. 他术可能在家,我刚才看到他在图书馆学习。 can’t be at home. I saw him studying in the He_______ library just now. 9. —我必须现在回家吗? Must I go home now? —_____ —不,不必。你可以6点回家。 —No, you_______. needn’t You_____ can go home at 6 o’ clock. 10.你不准在课堂上大声讲话。〉 mustn’t speak loudly in class. You_________