Unit 12 Section A(Grammar Focus～4b)——单元语法精讲精练-【四清导航•河南专版】2022-2023学年九年级英语下册作业课件(人教版)

第三课时　Section A(Grammar Focus～4b) ——单元语法精讲精练 英语 九年级下册 人教版 四清导航 1．概念 过去完成时表示在过去的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”。 2．结构 (1)肯定句：主语＋had＋动词的过去分词＋其他． He said he had given the book to the teacher.他说他已经把书给老师了。 (2)否定句：主语＋had not/hadn't＋动词的过去分词＋其他． Tom hadn't finished his homework when I called him.我打电话给汤姆的时候，他还没有完成他的家庭作业。 2 (3)一般疑问句：Had＋主语＋动词的过去分词＋其他？ Had you come back home by ten last night？昨天晚上十点之前你已经回家了吗？ 3．用法归纳 (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式。 By the time/Before I came to this school，I had learned English.在来这个学校之前，我已经学英语了。 (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，与“for＋时间段”连用，谓语动词用延续性动词。 3 He had been ill for a week when he told me.当他告诉我时，他已经病了一周了。 (3)主句谓语动词为一般过去式(如said，asked，found，told，thought等)时，其后的宾语从句通常用过去完成时。 Mary said she had seen the film before.玛丽说她以前看过这部电影。 一、用括号内所给单词的适当形式填空。 1．When I returned home，he __________ (leave). 2．By ten o'clock last night，she_________________ (finish) writing. 3．He ______________ (study) English for five years before he came here. 4．I saw Han Mei yesterday.We _______________ (not see) each other since we left Beijing. 5．She asked if Mr. Liu had already__________ (come) back. had left had finished had studied haven't seen come 5 二、根据短文内容，用括号内所给词的正确时态填空。 Henry Ford was born on July 30th，1863.He was interested in machinery from an early age.He is a great man that 6.______________ (change) the history of the 20th century. When he 7.__________ (start) the Ford Motor Company in 1903，he 8._____________________ (already，invent) his first gasoline motor (汽油发动机).Before the invention，he 9.____________ (meet) Thomas Alva Edison.In fact，in 1893 Ford 10._____________ (become) Edison's chief engineer. Ford was a man of vision (有远见的人).He 11.__________ (think) he could change his society and the world with his cars.In 1913，he 12.___________ (make) his dream come true by using the assembly line (流水线) to produce his model T has changed started had already invented had met became thought made 6 car.He 13._________