一般现在时结构: 1. +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,**,are)动词:(作谓语动词时) 肯定句:主语+be动词(am,**,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 ** out.(主语+be动词+副词) ④that pen ** mine.(主语+be动词+代词) ⑤i am fif**.(主语+be动词+数词) ⑥the bike ** under the tree.(主语+be动词+介词短语) 运用am,**,are写三个句子 否定句:主语+ be(am,**,are) + not +其它。 如:he ** not a worker.他不是工人。 运用am,**,are写三个句子 一般疑问句:be(am,**,are) +主语+其它。 如:-are you a student? -yes. i am. / no, i'm not. 运用am,**,are写三个句子 特殊疑问句:疑问词+一般疑问句。如:where ** my bike? 运用am,**,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(**, 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(**, 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 engl**h. ②he doesn't speaks engl**h. 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,h**e 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 engl**h. 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. 20210311