结构及用法:
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.