1、小学英语一般现在时一. 意义:表示经常发生的事情,动作或存在的状态 二. 构成及变化 1.be动词的变化。 1.肯定句:主语+be(am,is,are)+其它。如:I am a boy.我是一个男孩。 2.否定句:主语+ be + not +其它。如:He is not a worker.他不是工人。 3.一般疑问句:Be +主语+其它。 如:-Are you a student? -Yes. I am. / No, Im not. 4.特殊疑问句:疑问词+一般疑问句。如:Where is my bike? (l)、当主语为第一,二人称及复数时,助动词为do 肯定句:主语+动词原形(+其它)。
2、如: We often play basketball after school. 否定句:主语+ dont+动词原形(+其它)。如:we dont play basketball after school. 一般疑问句:Do +主语+动词原形+其它? 如: Do you often play basketball after school l? Yes, we do. / No, we dont. 特殊疑问句:疑问词+以do开头的一般疑问句? 如: What do you often do after school ? ()、当主语为第三人称单数时 , 助动词为does 肯定句:主语+动词三
3、单式(+其它)。如: He swims well. 否定句:主语+ doesnt+动词原形(+其它)。如:He doesnt swim well. 一般疑问句:Does +主语+动词原形+其它。 如:Does he swim well ? Yes, he does. / No, he doesnt. 特殊疑问句:疑问词+以does开头的一般疑问句? 如: How does your father go to work? 三第三人称单数的动词变化规则(只有在第三人称为主语的肯定句中,动词才用三单式)(1)多数动词直接加s: runs gets likes collets takes plays climbs. (2)结尾是s, x, sh, ch, o,前为辅音字母, 结尾加es : watches teaches goes does washes crosses mixes brushes (3)动词末尾y前为辅音:将y改为i加es: studystudies flyflies carrycarries crycries 但在y前如果为元音则直接加s: buys says 四时间标志:always , usually , often , sometimes ,every