2.3 动词时态和语态（课件）-2020年初升高英语无忧衔接(共22张PPT)

2020年初升高英语无忧衔接 第二章语法知识 专题三：时态和语态 一般现在时 一、表达形式 主动语态：主语+do/does+其它 被动语态：主语+am/is/are+及物动词过去分词 二、常用时间状语 every day ,often, always, sometimes, once a week , in summer 三、基本用法 1、现在习惯性动作，即包括现在时刻在内的整个阶段经常性、习惯性动作。 The bank opens at 8:00 a.m. on weekdays. However busy I am, I write to my mother regularly. 2、（人、物）现在的特性、状态。 Now I am busy; I can’t spare time for a holiday. That street is in bad condition, and smells terrible. 3、叙述客观真理、科学事实、格言及没有时限的客观存在。 Knowledge is strength . Light travels faster than sound. Japan lies to the east of China. 一般过去时 一、表达形式 主动语态：主语+do/does+其它 被动语态：主语+am/is/are+及物动词过去分词 二、常用时间状语 yesterday, last night, the night before, the other day, just now等。 三、基本用法 1、用于表示在确定的过去时间里发生的动作或状态。如： I got to know him two years ago. He was seriously ill last week. 2、过去发生的经常性、反复性的动作或状态。如： China is different from what it used to be. （不可换） As a child, I would go to sea along with my