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may 也表示猜测,意为“可能”。
3) Where is my English book? It might / may be in your desk.
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Ⅰ.用适当的情态动词填空:
1. I can play football. ____C__a_n___you swim? 2. I can’t play with you. I ___m_u_s__t___finish my
9. __D____ the girl read before she went to school? A. Can B. Must C. Ca精n品PPTD. Could
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He is a singer and actor, he is known by everyone.
Whose dog is this?
--No, you ___B___. There’s something wrong with the
toilet.
A. needn’t B. mustn’t C.精s品hPPoTuldn’t D. didn’t
must / must not
must 的用法: must 必须 ,表示说话人的 主观意志。
You must do your homework first.
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must / must not
must not的用法: mustn’t 表示禁止 ,不准,不允许。 You mustn’t smoke here. You mustn’t play with fire.
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must / must not
以must开头的疑问句,
肯定回答:Yes , …must.
否定回答: No, … needn’t. 或 No, … don’t have to.
-- Must I clean the classroom now? -- Yes, you___m_u_s_t_ . -- No, you __n_e_e_d_n_’t__ . /
Whose dog is this?
It might / could be___.
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An actor, he is tall, cool and popular.
Whose dog is this?
It might / could be___.
It must be Zhang Han’s.
3) Can you skate? 2. 表示允许 (可以)
1)Can I use your dictionary? 2)----- Can I go home now?
----- Yes, you can. / No, you can’t.
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could
1. 是can 的过去式; 表示过去的能力;
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6. _C_a_n__that wallet yours? --No, it _c_a_n_’_t __be mine. Mine is here.
7.The pen_m__ig_h_t_/_c_o_u_l_d belong to him. It’s on his desk.
8.My mother __c_a_n__’t___ be at home. She left home
small for him.
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用must, could, can’t, might填空。
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He is rich but helpful.
Whose car is this?
It might/ could be _____. It can’t be _______. It must be_________. 精品PPT
He is rich but helpful.
Whose car is this? It might/ could be _____. It can’t be _m__i_n_e__.
homework first.
3. I___m__u_s_t___ get up early tomorrow. because I
have a meeting.
4. Nobody ___c_a__n_____live without air.
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5.__M__a_y_____I come in ?Yes ,please.
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He is a basketball player. Whose car is this?
It might / could be __.
ll player. Whose car is this?
It might / could be __.
It must beY__ao__M__in_g_’s_. It can’t be _m__i_n_e____.
It might/ could be____.
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He is a singer and actor, he is known by everyone.
Whose dog is this?
It might/ could be____. It must be Liu Dehua’s.
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An actor, he is tall, cool and popular.
1.The storybook__m_u_s_t _ be hers. It has her name on it.
2.The beautiful trousers _c_a_n_’t__ be Lily’s. Because
they’re too long.
3.I can’t find my key. It__c_o_u_ld_/m__ig_h_t__ be left at home. 4.The volleyball__m_ig_h_t_/c_o_u_ld__ be Sally’s or Ann’s. They both like playing volleyball. 5.The piano__m__ig_h_t/_c_o_u_ld__ belong to Alice. She often plays the piano.
need 作行为动词,有人称、数和时态的 变化后接to do, 即精品nPPeTed to do sth.
might / may
might 1. 是 may 的过去式。
2. 表示推测, 可能性较小。 1) He might be very busy now. 2) Your mother might know the truth.
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might, could 表示推测
语气更委婉,表示的可能性较小,说话中留 有余地,意为“可能,也许,或许”。
1. The football might / could be Jack’s. He likes all kinds of ball games.
2. Liu Mei isn’t here today. She might / could be ill.
He could ride a bike at the age of five.
2. 用于婉转语气,多用于问句。“能,可以” Could you please clean the room?
---- Could I come to see you tomorrow? ---- Yes, you can. ( No, you can’t. )
6. _C__o_u_l_d____you please tell me where the
station is ?
7. Must I finish the work now ?
No, you __n_e_e_d__n_’t___.
8. --Need I take this book out? --Yes , you __D___ . A. can B. may C. need D. must
No, you __d_o_n_’_t_h_a_v_e_to_ . 精品PPT
need
need作情态动词,主要用于疑问句和否定句中
need 一般疑问句: 肯定回答用 Yes, … must, 否定回答用 No,…needn’t . 或 No,…don’t have to.
如: Need I do it now? Yes, you __m_u_s_t___。 No, you _n_e_e_d_n_’t_/_d_o_n_’_t _h_a_ve__to__ .
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may / may not
may的一般疑问句,其否定回答用 can’t 或
mustn’t。
1. --May I go home now? --Yes, you may. / Sure. / Yes, please. No, you can’t./ mustn’t.
2. --May I use your washroom now?
must 一定,肯定 (100%的可能性)
might, could 有可能,也许(20%~80%的可能性)
can’t 不可能,不会(精可品PPT能性几乎为零)
意思
推测程度
must 一定,肯定 用于非常确定的推测
may
有可能,
might 也许 /could
用于不确定的推测
can/ 不可能, 在疑问句和否定句中
此处 could 不是过去式,只是语气更委婉, 答语中不能用could和 couldn’t,要用can 和
can’t。
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may / may not
may的用法: 1. 表示请求和允许 (可以), 比can 正式.
May I come in? He may come if he likes.