小学英语语法时态讲解和归纳.docVIP

小学英语语法时态讲解与归纳—一般现在时 一、一般现在时：? ?1.表示事物或人物的特征、状态。如：The?sky?is?blue.天空是蓝色的。? 2.表示经常性或习惯性的动作。如：I?get?up?at?six?every?day.我每天六点起床。? 3.表示客观现实。如：The?earth?goes?around?the?sun.地球绕着太阳转。 二. 构成及变化1.be动词的变化。肯定句：主语+be(am,is,are)+其它。如：　I am a boy.我是一个男孩。否定句：主语+ be + not +其它。如：He is not a worker.他不是工人。一般疑问句：Be +主语+其它。??如：-Are you a student? 　-Yes. I am. / No, Im not.特殊疑问句：疑问词+一般疑问句。如：Where is my bike?2. 行为动词的变化。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)。如：　We often play basketball after school.否定句：主语+ dont+动词原形(+其它)。如：we don’t 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 ?3、当主语为第三人称单数时 ,助动词为does肯定句：主语+动词三单式(+其它)。如： He swims well.否定句：主语+ doesn’t+动词原形(+其它)。如：He doesn’t 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: study→studies fly→fliescarry→carriescry→cries但在y前如果为元音则直接加s:　buys　says plays stays (4) 不规则变化常见的：have----has 四．时间标志：always , usually , often , sometimes ,every… 一般现在时练习题（１） 一、?写出下列动词的第三人称单数?? drink?________?go?_______?stay?________?make?________? look?_________?have_______?pass_______?carry?____? come________???watch______?plant_______?fly?________? study_______?brush________?do_________?teach______ 二.用下列单词的适当形式填空1.We often___________(play) in the playground.2.He _________(get) up at six o’clock.3.__________you _________(brush) your teeth every morning?4.What________________(do) he usually________________(do) after school?5.Danny ________________(study) English, Chinese, maths, science and Art at school.6.Mike sometimes __________(go) to the park with his sister.7.At eight