Unit 13 Section A (Grammar Focus-4c) 课件 2023-2024学年人教版九年级英语全册

Unit13 We’re trying to save the earth ! (GF-4c) 根据汉语提示完成单词。 1. The shoes are so expensive that I can’t afford (买得起)them. 2. We should use reusable (可重复使用的)chopsticks when we eat outside. 3. What do you think of the transportation(交通)in China? 4. The Spring Festival is considered(认为是)the most important festival in China. 5. We can save electricity(电)by turning off the lights when we leave a room. We are try to save the earth. Present progressive The river used to be so clean. used to The air is badly polluted. Passive voice No scientific studies have shown that sharks fins are good for health. Present perferct We should save the sharks. Model verbs Grammar Focus 现在进行时 (1)基本结构: 主语 + be + 现在分词(be 的形式随主语的变化而变化) (2)基本用法: ①表示现在正在进行的动作。常常与now,at the moment或具体的时间连用,有时句中会有感官动词来提示,或通过上下文来暗示。 ②表示现阶段一直进行的动作。这类动词常常是延续性动词。常于at present, this week, these days等连用。 复习 现在完成时 (1)基本结构:主语 + have / has + 过去分词 (2)基本用法: ①表示过去发生的动作,但强调对现在产生影响。 常与ever, never, already或twice等连用。 ②表示过去发生的动作或存在的状态一直延续到现在,还可能继续下去。常常与since, for, in the past + 时间名词,in the last +时间名词等时间状语连用,而且谓语动词要求是延续性动词。 被动语态 被动结构,归纳如下: (1)一般现在时是被动语态:am / is / are + 过去分词 (2)现在完成时的被动式: have / has + been + 过去分词 (3)现在进行时的被动式: am/ is/ are + being + 过去分词 (4)一般过去时的被动式:was / were + 过去分词 (5)一般将来时的被动式: will / be going to be+ 过去分词 (6)含有情态动词的被动式: 情态动词+be +动词的过去分词。 用括号内所给动词的适当形式填空。 Listen! The phone _(ring). Please go to answer it. — Alan, it’s late. Why not go to bed? — Jenny hasn’t come back yet. I _(wait) for her. 3. — What’s your father doing now? — He _ (write) a letter in the study. is ringing am waiting is writing 7 “碰壁点拨式”教学法是素质教育的一种方式,这种教学法的基本模式是:编拟题组—练中碰壁—讲评点拨—巩固消化。该教学法以问题为载体,以训练为主线,目标导控,问题教学,先练后讲,碰壁点拨,反馈矫正。增强了学习的方向性、选择性及目标性,使学生在克服困难消除障碍的过程中发展自己的观察力、想象力和思维能力,使他们的智慧升华,创造思维得以开发。 用括号内所给动词的适当形式填空。 1. — I’d like to introduce my best friend to you, Peter. — Thank you, Lucy. But we _ (meet) already. 2.— Look at these stamps. I _ (keep) them for five years. — Wow, they are wonderful. have met have kept 用括号内所给动词的适当形式填空。 1. The Secondary Scho