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课件网) 一般现在时 一般现在时：表示经常发生的动作或存在的状态/客观事实或普遍真理/习惯性的爱好或行为。关键词（频率副词usually,often.../频次短语once a week...) 结构：主语＋动词原型/三单＋其他 ①主谓宾（表动作） 肯定句：主语+谓语动词原型/三单+其他 eg:He plays football everyday. We often go to school on foot . 否定句：主语+don’t/doesn’t+谓语动词原型+其他 eg:He doesn’t play football yesterday. We don’t often go to school on foot . 一般疑问句：Does/Do+主语+动词原形+其他？ 肯定回答：Yes,主语+does/do. 否定回答：No,主语+doesn’t/don’t. eg:Does he play football everyday Yes,he does./No,he doesn’t. Do you often go to school on foot Yes,we do./No,we don’t. ②主系表（无动作，表状态）系动词（be动词）am/is/are 肯定句：主语+be动词+其他 eg:I am an English teacher . The dog is very cute. 否定句：主语+be动词+not+其他 eg:I am not an English teacher . The dog is not/isn’t very cute. 一般疑问句：be动词+主语++其他？（be动词提前） 肯定回答：Yes,主语+be动词. 否定回答：No,主语+be动词+not. eg:Are you an English teacher Yes,I am./No,I am not. Is the dog very cute Yes,the dog is./No,the dog isn’t. be动词随主语的变化而变化，“我用am你用are,is连着她他它，单数is，复数are”。 有be找be，有can找can,无be无can,借助动词do,does,did来帮忙,变否定要有不,not一定牢记。 动词三单形式变化规律 ①一般直接在词尾加s eg:swim-swims,like-likes,want-wants ②以辅音+y结尾的动词，改y为i+es eg:study-stydies,cry-cries,fly-flies ③以o/x/ch/sh结尾的动词加es eg:go-goes,watch-watches,photo-photos ④以元音字母加y结尾的动词直接加s eg:play-plays,stay-stays,get-gets ⑤特殊单词特殊记 eg:have-has，be-is 一般过去时 一般过去时：表示过去发生的动作或存在的状态，动作结束在过去。关键词（yesterday,last night/week/many years ago/just now/in the past...) 结构：主语＋动词过去式＋其他 ①主谓宾（表动作） 肯定句：主语+谓语动词过去式+其他 eg:He played football yesterday. She liked watching TV many years ago. 否定句：主语+didn’t+谓语动词原型+其他 eg:He didn’t play football yesterday. She didn’t like watching TV many years ago. 一般疑问句：Did+主语+动词原形+其他？ 肯定回答：Yes,主语+did. 否定回答：No,主语+didn’t. eg:Did he play football yesterday Yes,he did./No,he didn’t. Did she watch TV mang years ago Yes,she did./No,she didn’t. ②主系表（无动作，表状态）系动词（be动词）am/is/are/was/were 肯定句：主语+be动词+其他 eg:I was a pipul many years ago. The cat was under the tree just now. 否定句：主语+be动词+not+其他 eg:I was not/wasn’t a pupil many years ago. The cat was not/wasn’t under the tree just now. 一般疑问句：be动词+主语++其他？（be动词提前） 肯定回答：Yes,主语+be动词. 否定回答：No,主语+be动词+not. eg:Were you a pipul many years ago Yes,I was./No,I wasn’t. Was the cat under the tree just now Yes,the cat was./No,the cat wasn’t. be动词随主语的变化而变化，“我用am你用are,is连着她他它，单数is，复数are”。 有be找be，有can找can,无be无can,借助动词do,does,did来帮忙,变否定要有不,not一定牢记。 动词过去式规则变化 ①一般直接在词尾加ed eg:play-played,clean-cleand, ... ...
