Unit12 Section A Grammar Focus-4c 课件 -2023-2024学年人教版英语九年级全册

Unit 12 Life is full of the unexpected. 第三课时 Grammar Focus-4c 1 过去完成时 1.概念及构成 过去完成时表示在过去某一时间或动作之前已经发生或完成了的动作。它表示动作发生的时间是“过去的过去”。过去完成时的构成为“助动词had+动词过去分词”。 语法练习 2 2.句式结构 句式 结构 肯定句 主语+had+动词过去分词+其他. 否定句 主语+had+not+动词过去分词+其他. 一般疑问句 Had+主语+动词过去分词+其他? 肯定回答:Yes, 主语+had. 否定回答:No, 主语+hadn't. 3 3.过去完成时的用法 (1)常与before、by、by the time、by the end of等引导的时间状语(从句)连用。状语从句的谓语动词常用一般过去时。 By the time/Before I came to this school, I had learned English. 在我来这个学校之前,我已经学过英语了。 (2)表示从过去某一时间开始,持续到过去另一时间的动作或状态,还可能持续下去,常与“for+时间段”连用,谓语动词用延续性动词。 He had been ill for a week when we learned about it. 当我们知道这件事时,他已经病了一周了。 4 (3)在复合句中,如果叙述的是过去的事情,先发生的动作用过去完成时。 Mr. Zhang said that he had lived in this city for ten years. 张先生说他已经在这个城市住了十年了。 5 语法精练 . 用括号内所给单词的适当形式填空 1.I _(memorize) 900 English words when I _(be) ten. had memorized was 2.By the time I _(get) home, my father _(leave) for New York. got had left 3.By 10:00 last night, she _(send) five e-mails to me. had sent 4.When I got home, I realized I _(leave) my keys in the classroom. had left 同步练习 6 . 按要求完成句子 1.昨天我到达聚会时,卡萝尔已经赶到了。 (完成句子) When I arrived at the party, Carol _ already _ _ yesterday. had shown up 2.到上学期结束为止我们已经学习英语三年了。(完成句子) We had studied English for three years_ _ _ _ last term. by the end of 3.The train had left when I got to the station. (改为一般疑问句) _ the train _ when you got to the station? Had left 4.Jenny had already cleaned the room when I called her. (改为否定句) Jenny _ _ the room _ when I called her. hadn't cleaned yet 7 要点精练 根据句意以及汉语提示填写单词 1.There is a big _(市场) near my house. It's convenient to buy things. market 2.I usually have _(奶油) cakes for breakfast. cream 3.These green _(豆) look good. Let's have some. beans 4.Hector gets back from work very late on _(工作日). workdays 8 阅读还原 根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。 (2021 湖南长沙雅礼集团期中)Do you find yourself studying the same page for 15 minutes? Are you thinking of a TV show while doing your homework? 1._ Concentration is the ability to focus on a task at hand. 2._ Start by creating a space that's