人教版八年级英语下册Unit3 SectionA Grammar Focus-4c课件.pptxVIP

Section A (GF~4c)Unit 3Could you please clean your room? v.扔；掷adv.也不； pron.两者都不n.衬衫v.给；递；走过；通过v.借；借用throwneithershirtpassborrowv.借给；借出n.手指v.厌恶；讨厌n.杂务；乏味无聊的工作conj.当…的时候；而；然而lendfingerhatechorewhile 洗餐具倒垃圾叠衣服扫地铺床do the dishestake out the rubbishfold the/one’s clothessweep the floormake the/one’s bedwrite down the phrases待在外面帮助脱困至少stay outhelp outat least write down the phrases打扫起居室没问题搭车外出吃晚饭去看电影从…回来随时；马上一…就…clean the living roomno problemget a ridego out for dinner go to the movies be back fromany minute nowas soon as Could I go out for dinner with my friends?Sure, that should be OK.Could we get something to drink after the movie?No, you can’t. You have a basketball game tomorrow.Could you please take the dog for a walk?OK, but I want to watch one show first.Could you please take out the rubbish?Yes, sure. .Grammar Focus情态动词could1. 含义：“能够， 可能”2. 是can的过去式，比can更委婉3. 不能作谓语, 没有人称和数的变化，后加动词原形 Could I go out for dinner with my friends?Sure, that should be OK.Could we get something to drink after the movie?No, you can’t. You have a basketball game tomorrow.Could you please take the dog for a walk?OK, but I want to watch one show first.Could you please take out the rubbish?Yes, sure. .Grammar FocusWhich sentences are asking for requests? Which sentences are asking for permission? 1. 委婉地请求别人做某事（提出请求） 句型：Could you do…? / Could you please do…? 你能……吗? / 请问你能……吗?(2)肯定回答： Certainly./Of course./With pleasure./ No problem./Yes, sure. 否定回答： No, I can’t./Certainly not./ No, I’m afraid I can’t.情态动词could的功能【注意】回答只用can/cant，不用could/couldnt. 2. 委婉地请求别人允许自己做某事（征求许可） 句型：Could I do…?我可以做……吗? 肯定回答：Yes, you can./Certainly./Yes, sure. 否定回答：No, you can’t./No, I’m afraid you can’t. 妈妈，我能先看电视吗？ 不行，你要写作业。 —Could I wacth TV first, Mom? —No, you can’t. You should do your homework.情态动词could的功能 3. 表示过去的能力，作can的过去式I could speak English at the age of three. 在我三岁时我能说英语。4. 表示推测，“可能”You could be