(
课件网) 英语时态 英语中不同时间发生的动作要用动词的不同形式来表示，这种动词的不同形式叫做时态。 常见的英语时态有16种，但初中阶段一般要求掌握8种。 （以动词work为例） 时态名称 例 句 主语 谓 语 时间 状语 一般现在时 He works every day 一般过去时 He worked yesterday 一般将来时 He will work to morrow 过去将来时 He said he would work the next day 现在进行时 He is working now 过去进行时 He was working at that time 现在完成时 He has worked for two hours 过去完成时 He had worked for two hours by then 一般现在时 一般现在时 I am a teacher. She likes dogs. We often walk to school. He has English lessons twice a month. The sun is bigger than the earth. 用法 （1）习惯性的、反复出现的动作或状态 He walks to school every morning. （2）现有的特征或者状态 I am a teacher. （3）客观事实和普遍真理 The sun rises from the east. The teacher said that one plus one is two. 时间状语 （1）always, usually, often, sometimes, seldom, ever, never等 It never snows in Australia in December. （2）once a year, twice a day, every day/month, every other day(每隔一天)，every two days(每隔两天)等。 I hear from her every other week. 句型结构 1）当谓语动词是实义动词 ①肯定形式：主语+谓语动词+其他。 He walks to school at 7 every day. ②否定形式：主语+don't/doesn't+动词原形。 He doesn't walk to school at 7 every day.. ③一般疑问句形式：Do/Does+主语+谓语动词原型+其他？ Does he walk to school at 7 every day？ 肯定回答：Yes,主语+do/does. 否定回答是：No, 主语+ don't/doesn't. 句型结构 2）当谓语动词是be动词 ①肯定形式：主语+be+表语（形容词、名词做表语） He is a student ②否定形式：主语+be+not+表语 He is not a student ③一般疑问句形式：Be+主语+表语 肯定回答：Yes,主语+be. 否定回答：No, 主语+ be+not. —Is he a student —Yes, he is./No, he isn't. 动词 当主语是第三人称单数时，谓语动词需加-s或-es 规则变化 动词原形 第三人称单数形式 一般在词尾加-s play leave swim plays leaves swims 以字母s, sh, ch, x, o结尾的词加-es pass fix teach wish do passes fixes teaches wishes Does 以辅音字母+y结尾的词，变y为i, 再加-es study carry fly studies carries flies 动词 不规则变化 be - is have- has 做第三人称单数形式的主语 人称代词 he, she, it； 单个人名、地名或称呼作； 单数可数名词或"this / that / the+单数可数名词； 不可数名词； 数字或字母； 不定代词 someone, somebody, nobody, everything, something 及指示代词 this, that； 写出下列动词的第三人称单数形式 post eat stop jump go like visit pass read ride have give write swim study watch fly teach do 巩固练习 一般过去时 一般过去时 I was a teacher last year. She liked dogs when she was little. We often walked to school in 1999. He had English lessons twice last month. 用法 （1）表示过去某时间发生的动作或状态 I cried at the party yesterday. （2）表示过去习惯性、经常性的动作行为 We often played together when we were children. 时间状语 （1）then, at that time, just now, yesterday, yesterday morning/…, last night/month/Sunday…， in(on或at)+一个过去的时间，days/months ago等 Tom was here just now. I didn’t do the homework last ... ...
