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2018年秋人教版八年级上册(黄冈)英语作业:Unit9 第三课时 Section A (Grammar Focus~3c)

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Unit 9 Can you come to my party?
第三课时 Section A (Grammar Focus~3c)

情态动词can 1.含义:情态动词can表示说话人的语气或情态,基本意思是“能; 会”,没有人称和数的变化,在句子中不能单独作谓语,其后须接实义 动词原形;can的否定形式为can't/cannot;过去式为could;其过去否定 形式为could not/couldn't。 2.can的用法 ①表示能力,意为“能;会”等。 eg:—Can you speak English?你会讲英语吗? —Yes,I can.是的,我会。

②多用在口语中,表示请求或允许,意为“可以;能”等;用于疑问 句中表示提出要求;用于否定句中表示不允许。
【注意】can表示请求,用于发出邀请,如果接受对方的邀请,常用 “Sure,I'd love (like) to./Certainly/Of course.”等来回答;如不接受,常 用Sorry等来有礼貌地拒绝。一般情况下需要说明不能接受邀请的原因以 表示歉意。
eg:—Can you come to my birthday party tomorrow?明天你能来参加 我的生日聚会吗?
—Sorry,I am afraid not.I'm going to visit my grandpa.对不起,我恐 怕不能去,我打算去看望爷爷。

have to的用法 “have to”意为“不得不,必须”,强调一种客观情况,有单、复数及 时态的变化,其第三人称单数为has to,过去式为had to。 eg:His mother is ill.He has to stay at home and look after her.他妈妈病 了。他不得不待在家里照顾她。

have to与must的区别 1.have to意为“不得不;必须”,强调一种客观情况。must意为 “必须”,着重于说话人主观认为有义务、有必要。 eg:We have to go home now because it's dark.我们现在必须回家,因 为天黑了。 You must do it yourself.你必须自己做。 2.have to有单复数及时态的变化,must无人称、时态、数的变化。

一、单项选择。

1.—DCaddy,can you come home for supper with us this weekend? —_________,but I might be a little late.

A.I'm busy C.Of course

B.Hard to say D.Never mind

2.—Would you like some noodles?

—________.I am not hungry now.

C A.You're welcome

B.Yes,please

C.No,thanks D.Here you are

A

3.—_______ you read the information for me?

—Sure.

A.Can

B.Should C.May

D.Must

4.—Can Paul go to the party with me this evening?

—___C____.He has the flu. A.Yes,please B.Yes,he'd love to

C.I'm afraid he can't D.No problem

B
5.She wants to play outside,but she ______ finish her homework first. A.might B.must C.can D.could
C 6.I ________ stop eating fast food because it's not good for health. A.can B.may C.have to D.should 7.—____D___ you play the piano? —Yes,of course. A.Must B.Have to C.May D.Can

B
8.I can look after myself.You ________ worry about me any more. A.mustn't B.don't have to C.may be D.need 9.The children ___C_____ play football on the road. A.can't B.can C.mustn't D.must 10.They ________ work very hard when they were young.
A A.had to B.must C.should D.have to

二、按要求完成下列句子。

11C.anI

hope

you

can come come

to

my

birthday

party,Gina.(改为同义句)

_______ you ________ to my birthday party,Gina?

12.—Could you come to see me next Monday?(作肯定回答)

—___Y__e_s__,I'd __l_o_v_e_/l_ik_e__ ___t_o__. 13.Peter has to see a doctor.(改为否定句)

Peter __________ _________ ______ see a doctor.

doesn't have

to

14.have, clean, day, we, classroom, our, to, every (.) (连词成句) We have to clean our classroom every day. ______________________________________________________
15.the, next, go, with, I, movies, week, to, can't, Alice (.) (连词成句)
_I_c_a_n__'t_g_o__to__t_h_e_m__o_v_i_e_s_w__it_h_A__li_c_e_n_e__x_t _w_e_e_k_._______________




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