Unit 1 时态讲解课件-2021-2022学年高中英语北师大版必修一

第五,六课时-语法专题 Teaching aims: To review present simple,present continous and simple future To do some exercises （报纸第三期） Grammar Part 03 present simple 一般现在时 present continuous 现在进行时 simple future 一般将来时 构成： 主语+do/does（三单形式） 用法： 1 表示经常反复发生的动作 （日常活动或习惯） I play football twice a week. 2 表达事实（没有状态，时间的限制） My brother likes playing computer games. 3 一般的真理 Snow melts at 0 °C 4 将来的官方事件或预计要发生的事 Christmas falls on a Sunday next year. The last film show begins at 10 p.m The Present Simple tense 一般现在时 The Present Simple tense 一般现在时 第三人称单数形式；加-s的规则 情 况 变化形式 例词 一般情况 加-s 读法（清清，浊浊 元浊） helps makes knows reads 以s,x,ch,sh,o结尾的名词 加-es 读法（iz） guesses fixes goes washes 以辅音字母加y结尾的动词 变y为i, 加es 读（iz） flies cries tries studies 特殊词：plays says 疑问句，否定句，简略答语中要用does 或do Does she travel a lot? No, she doesn't. We don't like extreme sports 一般现在时中常用的时间状语 用于主语和谓语动词之间： always usually regularly rarely seldom often occasionally hardly ever never Some people never go on adventure holidays. 英语句首或句尾： every morning/night/evening/day/week, from time to time, twice a week, once a month From time to time, I dream about becoming a polar explorer. The Present Simple tense 一般现在时 Every few years, the coal workers ______ their lungs X-rayed to ensure their health. A. are having B. have C. have had D. had had B exercise Barbara is easy to recognize as she’s the only one of the women who ________ evening dress. A. wear B. wears C. has worn D. have worn B Planning so far ahead ______ no sense — so many things will have changed by next year. A. made B. is making C. makes D. has made C Look at the pride on Tom’s face. He ______ to have been praised by the manager just now. A. seemed B. seems C. had seemed D. is seeming B The Present Continuous 现在进行时 构成：助动词be的变位+V-ing 用法： 1 说话时正在进行的动作 My agent is waiting for me, I have to go. 2 一定时间内经常进行的动作 I'm learning to drive. 3 已经安排好的将来的活动 We're flying to Paris tomorrow.