2022八年级英语上册Unit9CanyoucometomypartySectionA第2课时GF_3c教学课件新版人教新目标版.pptx

Unit 9;学习目标;A: Can you come to my birthday party? B: Sure, I’d love to. ;A: Can you go to the concert? B: I’m sorry, I can’t. I have to prepare for an exam.;A: Can you go to the movies? B: I’m sorry, I can’t. I have to go to the doctor. A: Can he go to the movies? B: No, he can’t. He has to go to the doctor. ;A: Can you go to the zoo? B: Sorry, I can’t. I have to help my parents. A: Can he go to the zoo? B: No, he can’t. He has to help his parents.;A: Can you play computer games with me? B: Sorry, I can’t. I have to go to the baseball game. A: Can he play computer games with me? B: No, he can’t. He has to go to the baseball game.;A: Can you play soccer with me? B: Sorry, I can’t. I have to wash clothes. A: Can she play soccer? B: No, she can’t. She has to wash clothes.;Accept (接受) invitations:;本单元主要学习情态动词can引导的一般疑问句及其回答。 ?can引导的一般疑问句是将can放在主语之前。 ?can表示“做某事的能力”, 意为“能, 会”,此时can引导的问句常用can或cant作肯定或否定回答。 例：—Can you sing in English？你能用英语唱歌吗？ —Yes, I can./No, I can’t. 是的, 我能。/我不能。;?can与第二人称连用，常用于熟人之间表示邀请或请求，即Can you...? ①接受请求或邀请时, 常用Sure, Id love to. /OK，that sounds great./Certainly./Of course.等回答。 ②拒绝邀请, 一般不直接说No,而应说(Im)Sorry, I cant.以示礼貌, 然后说明理由；也可用Id love/like to, but...委婉地说明不能接受的原因并表示歉意。 拓展 发出邀请或请求时，也常用could使语气更委婉、客气。; 情态动词have to与其他的情态动词，如can、 may、must和should 不同。 （1）这4个情态动词没有人称的变化, 而have to有。它的第三人称单数为“has to”。 例：You / He should study hard. 你/他应该好好学习。 He has to study hard. 他不得不好好学习。;（2）这4个情态动词在一般疑问句中通常位于句首；用在否定句中时，直接在他们后边加not即可。 而have to要加助动词do、does或 did 才可能完成其疑问、否定句的转变。 ; 试将下面三句话分别写成 （1）一般疑问句，并作肯定回答。 （2）否定句。 a. They have to go to the party. Do they have to go to the party? Yes, they do. They don’t have to go to the party. b. He has to go to see the doctor. Does he have to go to see the doctor? Yes, he does. He doesn’t have to go to see the doctor.; c. She had to study for a math test yesterday. Did she ha