Unit 12 知识点2022-2023学年人教版九年级英语全册

Unit 12 Life is full of the unexpected. 【重点语法】 过去完成时 (课本P151) 1）概念：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。它表示的动作发生的时间是“过去的过去”。 2）构成：肯定形式 (主语+had+过去分词) 否定形式 (主语+hadn’t+过去分词) 疑问形式 Had+主+过去分词 3 ) 搭配词：句中常有by the time…（在……之前）, by the end of last year（到去年年底为止）, by 2008等, 或when，before引导的状语从句。 e.g. The plane had taken off when I reached the airport. By the end of last year we had built five new houses. 【练一练】 1） 昨天我在回家之前就做完作业了。 I ____________________before I _______________home yesterday. 2） 他搬来这之前已在这厂工作五年了。 He ____________________ in the factory for five years before he ___________here. 3）The pop singers _____when I got to the music hall last night. What a pity! A. have left B. were left C. had left D. left 4）They _____about eight hundred English words by the end of last term. A. will learn B. had learned C. are going to learn D. have learned 5）The teachers _____ the office for a few minutes when we arrived. We didn't meet them. A. had been away from B. had left C. have been away from D. have left 【A 1a-1c】 P89 1. Life is full of the unexpected. 生活充满了意外。 ⑴ be full of =be filled with. 充满，被充满、、、 ⑵ unexpected adj. 出乎意料的；始料不及的 the unexpected “意外的事”，“the + adj.”表示一类人或事物。 the poor穷人 the rich富人 the young年轻人 the old老年人 the sick 病人 the disabled残疾人 the beautiful美丽的东西 2. By the time I got up, my brother had already gotten in the shower. by the time... “在……以前；到……时候为止”， 常接表示过去的时间状语从句，主句常用过去完成时，即had+动词过去分词。 e.g. By the time I got there, he had already left.在我到那儿之前，他已经离开了。 3.leave 的用法 leave – left - left （1）①leave + 某地 “离开某地” ②leave for + 某地 “前往某地” ③leave A for B “离开A地前往B地” (1) leave sth+地方 表示把”某物遗忘在某地”, (不可用 forget +某物+地方) I forgot my homework at home. (×) I forgot my homework(√) I left my homework at home.(√) 【A 2a-2d】 P90 1. My alarm clock didn’t go off! go off 发出响声 （闹钟、电话铃响） 2. I kept sleeping, and when I woke up it was already 8:00 a.m.! 1) keep doing sth. 坚持做某事 2) wake up 醒来 wake-wo