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《课件》八年级英语上册Unit+9+Can+you+come+to+my+party+Section+AGrammar+Focus-3c+人教新目标版

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第三课时 Section A(Grammar Focus~3c)

单元同步语法精讲

(一)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,在句子中不能常独作谓语,其后须跟 实义动词原形;can的否定形式为can not/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。 —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。

(二)have to的用法 “have to”意为“不得不,必须”,它强调一种客观情况,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: ①have to意为“不得不;必须”,它强调一种客观情况。must意为“ 必须”,着重于说话人主观上认为有义务、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。 ②have to 有单复数及时态的变化,must无人称、时态、数的变化。

单元同步语法强化训练

一、单项选择。 1.—____A____I have some bananas? —Yes,please. A.Can B.Need C.Must D.Should 2.—Can you come to Susan's party? —Sorry,I___B_____look after my grandma. A.am B.have to C.can D.do 3.—Can you come and play baseball games with us? —____C____.I must study for a test. A.Yes,I can B.Yes,I do C.I am afraid not D.Sure,I'd love

4.—Will you go to museum with me this afternoon? —Sorry,___B_____.My aunt is coming to see me. A.I don't B.I can't C.I mustn't D.I am not 5.—___B_____you come to my party on Sunday? —Sure,I'd love to. A.Must B.Can C.Should D.Need

二、按要求完成句子。 6.They can go to the tennis game.(改为一般疑问句) _____C_a_n_ t_h_e_y_____go to the tennis game? 7.Can you play soccer with me this afternoon?(作肯定回答) Sure,______I_'d_ l_o_v_e_/l_ik__e t_o_______. 8.Can she go there by taxi?(作否定回答) No,_____s_h_e_ c_a_n_'_t____. 9.He has to go_to_the_doctor.(对画线部分提问) ____W__h_a_t d_o_e_s_____he have to___d_o____? 10.They can come to our school on_Tuesday.(对画线部分提问) ____W__h_e_n_c_a_n_____they come to your school?

补充知识
1.invite 动词,意为“邀请”;其名词形式是invitation。 常用短语:①invite sb.to+地点,意为“邀请某人到某地”。 ②invite sb.to do sth.意为“邀请某人做某事”。 2.accept 动词,意为“收到;接受”,强调主观上愿意接受。 3.refuse 动词,意为“拒绝”,常用短语: ①refuse sb./sth.拒绝某人/某物 ②refuse to do sth.拒绝做某事

从方框内选词并用其适当形式填空。
invite,accept,refuse
1.Thank you for_i_n_v_i_ti_n_g_me to your birthday party,but I am busy next week.
2.He _r_e_fu_s_e_d__to do his homework,so his father was angry. 3.Why didn't you__a_cc_e_p_t__my best wishes? I really loved you.




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