Unit 1 重点知识点讲解及练习 2022-2023学年人教版七年级英语下册

Unit 1:Can you play the guitar? 1. 情态动词can的用法有很多,具体归纳为以下四种情况: (1) 表示“许可,允许” You can go home now. (2) 表示“请求某人做某事” Can you take my books to your sister? 为了使语气更加委婉,我们可以用could。 Could you give me a cup of tea? 注意:表示请求允许(即请求别人允许自己做某事),两者均可用,此时的could并不表示过去式,而是表示一种委婉的语气。Can / could I come in ? 若表示给予允许(即自己允许别人做某事),一般只能用can,不能用could。 Can/ could I use your pen? -Yes, of course you can. (3) 表示“具有某种能力” -Can you play soccer? -No, I can’t. But I can play volleyball. (4) 表示猜测 -Is that Mr. Smith? -That can’t be him. He is in New York now. 注意:can常用于否定的猜测;若是表示肯定的猜测常用must. Jane’s light is on. She must be at home. She can’t be out. can后面总是接动词原形,没有人称和数的变化。意思是“能,会”。 2. join 参加;加入。它是短暂性动词,不能和一段时间连用。后加组织名称或人称代词 join the army /Party/ football team / the music club 参军/入党/加入足球队/音乐俱乐部 She joins us for dinner. join in 通常指参加某种活动, 尤其指和其他人一起参加某项活动,相当于take part in 1 May I join in the game? ②I hope you all join in the discussion(讨论). 即时练习: (1). My brother the army in 2002. (2). May I the competition? (3). We are playing football. Do you want to ? (4). You are welcome to us. 3. want “想要”的意思,若后面表示想要干某事,可以用want to do sth;但是若后面表示想要某物,则直接用want sth表示。 I want to join the chess club. I want a beautiful dress. 4. play chess play the guitar 1)当play 后接球类或棋类名词时,该球类或棋类名词前不用定冠词the。 play basketball 打篮球 play volleyball 打拍球 play chess下国际象棋 2)当play 后接乐器名词时,该乐器名词前要用定冠词the。 Play the piano 弹钢琴 play the guitar弹吉他 play the violin拉小提琴 *玩游戏 ( ) -Can you play guitar? -No, I can’t. But I can play chess. A. /; the B. the; / C. the; the D. / ; / 用 play或play the填空 He can _basketball, but he can't piano I want to guitar. I don’t want to football. 5. paint 与 draw的区别 注意与draw的区别:paint指用颜料等绘画;而draw指用钢笔、铅笔等画。 The artist paints in water colors. Alan draws a map and tells me how to get there. 派生词:painter n .画家 painting n .画 paint 还可以表示 给…上颜料(油漆) eg: We paint the door blue. 6. speak 讲,说。强调单方的“说”或“讲”, 侧重开口说话,不侧重说话的内容,通常指说好的方式和能力,也有“演讲,发言”之意。一般用作不及物动词,要表示“对某人说某事”则用 speak to/with sb. speak 后面常加某种语言,表示讲某种语言。 Please speak more slowly. I