Unit 7 Section A Grammar focus-4c课件 2023-2024学年人教版英语九年级全册

Unit 7 Teenagers should be allowed to choose their own clothes. Section A Grammar Focus-4c community keep...away from chance make one’s own decision educate manage society n. 社区；社团 避免接近；远离 n. 机会；可能性 自己做决定 v. 教育；教导 v. 完成；应付 n. 社会 I don’t think sixteen-year-olds should be allowed to drive. I agree. They aren’t serious enough. Do you think teenagers should be encouraged to make their own decisions? No, I don’t agree with this. Teenagers are too young to make their own decisions. Teenagers should not be allowed to have part-time jobs. I disagree. They can learn a lot from working. Do you think we may be allowed to take photos if we don’t use a flash? If you don’t use a flash, then it may be OK. Grammar Focus 同意（某人的意见、观点等） Review 一般现在时的被动语态 在英语中，动词有两种语态，即主动语态和被动语态。被动语态的基本结构是“助动词 be + 及物动词的过去分词”，其中助动词be有人称、数和时态的变化,其变化规则与be作为连系动 完全一样。 1.一般现在时被动语态的各种句式结构 肯定式 主语+am/is/are+过去分词（ + by…) 否定式 主语+am/is/are + not +过去分词 (+by…) 疑问式 Am/Is/Are+主语+过去分词(+ by …)? 特殊疑问词+ am/is/are+主语+过去分词（+ by ...)? 助记： 被动不离“be” “p.p.”, “p.p.”前面助动be。 主谓一致莫忘记，am, is, are现在时。 2.一般现在时被动语态的基本用法 用法 示例 表示经常性或习惯性发生的被动动作 I am often asked the question by my pupils. 表示近期正在发生的被动动作 These days people are moved by a teacher named Zhang Lili. 描述某种常态化的被动的客观事实 The spaceship is mainly controlled by computer. 强调目前存在的针对行为主体人的被 限制性动作 You aren’t allowed to take photos. A:When was the zipper invented? B:It was invented in 1893. A:Who was it invented by? B:It was invented by Whitcomb Judson. A:When was tea brought to Korea? B:It was brought to Korea during 6th and 7th centuries. A:When were the shoes with lights invented? B:They were invented last year. A:What is the hot ice-cream used for? B:It's used for serving really cold ice-cream. Active Voice 主动语态 _____________________invented _____________ in 1876 Passive Voice 被动语态 The telephone was invented (by Alexander Graham Bell)in 1876. Alexander Graham Bell the telephone subject 主语 object 宾语 宾变主，谓被动，主语放在by后 3. 主