Unit13单元知识点2022-2023学年人教版英语九年级全册

人教新目标版九年级全一册 Unit 13 We are trying to save the earth! Section A 1.play a part in参与+n./pron./v­ing eg：I want to play a part in saving the earth. 2.cut down减少 cut in 插嘴 cut off 切断 cut up 切碎 cut out 删除 3.advantage优点 可数名词 have the advantage of有……的有利条件 be to... advantage对……有利 4.make a difference起作用；有影响 make a difference （to...）（对……）产生影响或作用 5.not only...but also... 不但……而且…… 连接两个对等的成分，also 可以省略 eg: I not only play tennis but (also) practise shooting eg: Not only Mr. Li but （also）his son loves the movie. 连接两个主语时，就近原则 eg:Not only does Miss Li like music, but (also) she likes sports 6.harmful有害的 do harm to对……造成伤害 eg: Smoking will do harm to your health. be harmful to对…… 有害 eg: Don't read in the sun. It is harmful to your eyes 7.the number of……的数量 eg：The number of girls in our class is 30 辨析 a number of许多 接可数名词复数 谓语动词用复数形式 the number of……的数量 接可数名词复数 谓语动词用单三形式 8.be against...反对 反：be for...支持…… eg: I am not against your idea. Instead, I'm for you 9.现在进行时 10.现在完成时 11.被动语态 基本结构be+ 动词的过去分词 eg: The glass is broken 主动语态We visited that factory last summer. 被动语态That factory was visited by us last summer. 感官动词/使役动词变为被动语态时带to 主动: I often hear Mary sing in the next room 被动：Mary is often heard to sing in the next room Section B 1.recycle回收利用 eg: We recycle all of our plastic bags. 2.throw away扔掉；抛弃 eg: You can throw them away if you don't want these clothes. 3.pull...down拆下；摧毁 put短语 pull together齐心协力 pull off 脱去 pull out拔出 pull in(车等)停下,进站 4.win a prize赢得奖品 win赢，获胜 后接比赛、活动、奖品 beat击败；打败 后接人或团队等竞争对手 5.set up建立 set off/out动身,出发 set free释放 set down写下,记下 6.bring back恢复；归还；带回 eg: Please bring back the books to the library. 7.creativity n.creator 创造者,发明 v. create创造 adj. Creative 创造性的 1.--- Could you give me some advice on how to lose weight? ---Well, I think eating healthily can really make_____________difference. A. an B. a C. the D. / 2. ---I'm surprised to see you smoking. You ___________, I re