一般现在时结构
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一般现在时结构: 1. 主语+谓语+其他(表动作);2. 主语+be+表语(形容词、名词充当表语)。当主语是第三人称单数时,动词变相应的第三人称单数形式。,一般现在时结构: 1. 主语+谓语+其他(表动作);2. 主语+be+表语(形容词、名词充当表语)。当主语是第三人称单数时,动词变相应的第三人称单数形式。, (1) be(am,is,are)动词:(作谓语动词时) 肯定句:主语+be动词(am,is,are)+其它。 ,如: ①I am a student.(主语+be动词+名词) , ②They are hungry.(主语+be动词+形容词) , ③He is out.(主语+be动词+副词) , ④That pen is mine.(主语+be动词+代词) , ⑤I am fifteen.(主语+be动词+数词) , ⑥The bike is under the tree.(主语+be动词+介词短语) 运用am,is,are写三个句子 ,否定句:主语+ be(am,is,are) + not +其它。 ,如:He is not a worker.他不是工人。 运用am,is,are写三个句子 ,一般疑问句:Be(am,is,are) +主语+其它。 ,如:-Are you a student? -Yes. I am. / No, I'm not. 运用am,is,are写三个句子 ,特殊疑问句:疑问词+一般疑问句。,如:Where is my bike? 运用am,is,are写三个句子,特殊疑问句:,疑问词(what, where, who, when, which, whose, how, how many, how much, what shape, ,what colour,),找句子中有没有be动词(is, am或者are)或情态动词或者助动词 ,(特殊疑问句:疑问词+be动词(is, am或者are)或情态动词或者助动词+其他?) , (2)行为动词:主语+行为动词+(其它) ,1.主语不是第三人称单数时, ,肯定句为:主语+动词原形+其它 ,否定式为:主语+don't+动词原形+其它 ,疑问句为:Do+主语+动词原形+其它? ,e.g. ①We speak Chinese. ,②Do you speak Chinese? ---Yes, I do. / No, I don't. ,③They don't speak Chinese. 写三个句子 ,2.当主语是第三人称单数时: (he,she,it,A/An,单独的人或事物:Lily/book) ,肯定句为:主语+动词(词尾加s或es)+其它。 ,否定式为:主语+doesn't+动词原形+其它. ,疑问句式:Does+主语+动词原形+其它? ,①He speaks English. ,②He doesn't speaks English. ,③- Does she go to work by bike? Yes, she does. / No, she doesn't. 写三个句子 ,特殊疑问句:疑问词+一般疑问句。如:How does your father go to work? ,3.动词+s的变化规则,(1)一般情况下,直接加-s,如:cook-cooks, milk-milks ,(2)以s. x. sh. ch. o结尾,加-es,如:guess-guesses, wash-washes, watch-watches, go-goes ,(3)以"辅音字母+y"结尾,变y为i, 再加-es,如:study-studies ,(3)情态动词(作谓语动词时)(can,could,be able to,may,might,must,have to,need,shall,should,,will,would)时, 句子结构为:,肯定句:主语+情态动词+动词原形。 ,否定句:主语+情态动词+not+动词原形 一般疑问句;情态动词+主语+动词原形+其他? ,特殊疑问句:疑问词+情态动词+主语+动词原形+其他? ,Eg: ① He can speak English. ,② Can I help you? What can I do for you? ,在实际应用中,一般现在时常与以下时间状语联用: ,always, usually, often, sometimes, every week (day, year, month…), ,once a week, on Sundays ……,例句:He usually plays football on Sundays.
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