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1、动词的原形及用法 动词第三人称单数规则 动词原形变第三人称单数的规则与发音 规律同名词单数变复数大致相同。 1、大多数动词在词尾加“ S” stop stops s ; make makes s read reads z ; play plays z 2、以辅音字母加“ y”结尾的，要先将 “ y”变为“ i”，再加“ es”读 iz fly flies z； carry carries z study studies z; worry worries 3、以“ s, x, ch, sh”结尾的，在词尾加 “ es”，发音为 iz teach teaches iz; watch watches
2、 iz 4、以“ o”结尾的动词，加“ es”，读 z go goes z do does z 1.表示事物或人物的特征、状态。 The sky is blue. I am a student. 2.表示经常性或习惯性的动作。 I get up at six every day. 3.表示客观现实。 The earth goes around the sun. 地球绕着太阳转。 一般现在时 动词原形涉及到一般现在时 一般现在时的构成 He is a worker. We study English. He gets up at 6:00 every morning. 当主语为第三人称单数时，要
3、在动词 后加 -s或 -es 第三人称 he, she, it 单个人名、地名 John Beijing 不定代词 someone, everything 不可数名词 water, milk 单数名词 He is a worker. 变为疑问句 Is he a worker? We study English.变为疑问句 ,否定句 Do you study English? We dont study English. He gets up at 6:00 every morning. 变为疑问句 ,否定句 Does he get up at 6:00 every morning? He do
4、es not get up at 6:00 every morning 一般现在时的被动语态 1. The scientist invents this machine. 变为被动句 This machine is invented by the scientist. 一般现在时的被动语态 am/is/are+ 过去分词 2. We finish the work during two days. The work is finished during two days by us. 动词的过去式，过去分词及用法 动词 的 过 去式 动词的过去式 变化 可分为规则 变化 和 不 规则 变化 。
5、规则变化如下 （ 1）一般情况下，动词词尾加 ed ，如： work worked； play played； want wanted； act acted （ 2）以不发音的 e 结尾动词，动词词尾 加 d，如： live lived； hope hoped decide decided； （ 3）以辅音字母 + y结尾的动词，把 y变为 i 再加 ed，如： study studied try tried copy copied carry carried （ 4）双写词尾辅音字母，再加 ed，如： stop stopped beg begged drop dropped plan pla
6、nned 不规则动词的过去式 须记忆 过去式的用法 表示过去某一时刻或某一段时间内所发生 的动作或情况 。 一般过去式通常 和 表示 过 去 时间 的 词，词组 ，从句连用。 如 yesterday, last week, two days ago 等 I worked in that factory last year. 去年我在那一家工厂工作。 I went to the LianHua Mountain yesterday. 昨天我们去了 莲花 山。 涉及到一般过去式 否定句： He did not play football last week. 一般疑问句： Did he play
7、football last week? 肯定 回答： 否定回答： He played football last week. 主语 + did not +动词原形 Did +主语 +动词原形 Yes, he did. No, he didnt. 否定句： He was not ill yesterday. 一般疑问句： Was he ill yesterday? 肯定回答： 否定回答： He was ill yesterday. 主语 + was/were+ not 直接把 was/were提到句首 Yes, he was. No, he wasnt. 一般过去式的被动形式 涉及到动词的过去分
8、词 规格变化和不规则变化 1. The scientist invented this machine This machine was invented by the scientist. 变为被动句 2. We sent him to the hospital immediately after the accident. 变为被动句 He was sent to the hospital immediately after the accident. 一般过去时的被动语态 was/were + 过去分词 过去分词 又涉及到现在完成时和 过去完成时 现在完成时 We have cleaned our classroom. Our classroom has been cleaned by us. 现在完成时的被动语态： have/has + V-ed 变为被动句 has/ have been V-ed 过去完成时 had + V-ed We had learned 2000 English words by the end of last year. 变为被动句 2000 English words had been learned (by us) by the end of last year. 过去完成时的被动语态： had been + V-ed
动词的原形过去式过去分词及用法.ppt
