人教版七年级下册Unit 4 Don't eat in class.知识点整理

人教新目标七年级英语下册 Unit 4 Don’t eat in class Section A 1. Don’t arrive late for class. You must be on time. (1a p19) (1)arrive late for…=be late for…“为……而迟到” 【辨析】arrive, get to与reach表“到达” at +小地方(village) arrive in + 大地方(city) 副词(here/there/home…) to +地点(Beijing) “到达” get 副词(here/there/home…) 地点 reach 副词(here/there/home…) My father arrived in / got to Beijing this morning. 我爸爸今天上午到达了北京。 The farmer arrived at / got to an old house and knocked at the door. 那个农民到达了一个旧房子前并且敲了敲门。 (2) must 情态动词，表示“必须”、“务必”，有时还表示“一定”，起到加强语气的作用。 You must come tomorrow.你（们）明天必须要来。 【注意】在回答must引起的问句时，如果是否定的答复，可用don’t have to或needn’t (不必) , 但不能用mustn’t (一定不, 必须不, 不允许, 不得) 。 【拓展】have to与must 1) have to意为“不得不”强调“客观需要” They have to wear school uniforms every day. 他们每天必须穿校服。 2) must 意为“必须”强调个人意志和主观上的愿望 It’s late. I must go home now. 天晚了。现在我必须要回家。 含义 用法 否定式 must 主观“必须” 无人称和数，时态变化 mustn’t“禁止” You mustn’t take photos here. have to 客观“不得不” 有人称和数，时态变化 don’t/doesn’t have to“不必” You don’t have to come. (3) on time 是一个固定介词短语，表示“按时；准时”。 We must finish our homework on time.我们要按时完成任务。 in time “及时” He comes here in time. (4) 系动词be与形容词或介词短语连用，是英语一种常见的语句结构，表示某种状态。 be quiet 保持安静 be strict 要求严格 be on time 守时；按时到 be at work 在上班 You mustn’t be noisy, children.孩子们，你们一定不可喧闹。 2. Don’t listen to music in class.别在课上听音乐。(1a p19) (1) listen “听”，用来提醒某人注意，后面不跟事物。 Listen! Who’s singing in the classroom 听！谁在教室里唱歌？ 如果后面跟要听的事物，应跟介词to(即listen to)再跟事物。 Listen to our teacher carefully. 认真听老师讲。 （2）in class意为“在课堂上；上课时”，after class“课后” in the class 意为“在班上；在班级里” 3. Don’t fight. (1a p19) fight v.&n. “打架,争吵” 1）作动词 fight with sb. “和某人打架；同……(并肩)战斗” He never fights with his brother. fight for... “为......而战” fight about“为……而争吵” fight against “为反对……而斗争” fight for freedom为自由而战 2）作名词 have a fight (with sb.)=fight (sb.) “打架” 4. wear a hat (2a p20) wear v. “穿；戴”，强调穿，戴的状态。 be in+颜色/衣服 “穿着……颜色的衣服”，表穿的状态。 put on “穿/戴上”，强调动作。 get dressed 表动作“穿衣服”后什么也不接 be dressed in 表状态+名词（衣服/颜色）“穿着...” dress 表动作+sb/oneself “给...穿衣服” put on 表动作+服装，强调穿的动作。 wear 表状态+服装、手套、眼镜等的名词，强调穿(戴)的状态。 The girl in red is my sister Mary. She is wearing a red flower in her hair. He puts on his coat and goes out. He is dressed in black. Can you help me dress the little boy I get dressed at seven and then go to school. 5. This is very important. (2d p20) be important (for sb.) “(对某人来说)是重要的 ... ...