一般现在时讲解与练习.doc

一般现在时一、 一般现在时定义：表示经常性的事情，经常性的动作或一般性事实。 一般现在时的形式：形式例句含be动词第一人称单数 + amI am a student.第三人称单数 + isHe/she is a teacher.第二人称单数/各人称复数You are a beautiful girl.只含有实义动词第一第二人称单数/各人称复数+动词原形They play football on Sundays.第三人称单数+动词第三人称单数形式He works at school.二、行为动词的变化：当主语为第三人称单数时，行为动词的构成规则。1、一般情况下，在原形动词后面加s ,如 read reads write writes 2、动词以s , o , x , ch , sh 结尾的则在原形动词后加es ， 如 pass passes go goes fix fixes （固定） teach teaches wash washes3、动词是以辅音字母加y结尾的，将y改为ies ，如 study studies fly flies4、动词以元音字母加y结尾的， 在原形动词后直接加s如 buy buys play plays 趁热打铁 写出下列动词的第三人称单数形式：want find see write do wash live teach play fly watch buy thank go have study 三、一般现在时用法A：表示经常性的、反复发生的事情，句中常用：often 经常，usually通常，always 总是，every每个，sometimes 有时，never 从不等频度副词作时间状语。例：They usually go to school by bike.She often reads book at home.B: 表示客观真理，科学原理，自然现象，等客观事实或格言，谚语等。例：The earth moves around the sun . 地球绕着太阳转。四、一般现在时的句子转换：主语为非三单的句子：肯定句： They like music.否定句： They dont like music.一般疑问句：Do they like music ? Yes , they do . No, they dont.主语为三单的句子：肯定句： She likes music.否定句： She doesnt like music.一般疑问句：Does she like music ? Yes ,she does . No, she doesnt.课后大礼包（一）用动词的适当形式填空1. She often _(go) to school at seven oclock.2. Linda (have) a car.3. He usually _ (get ) up at 17:00. 4. I _ (live) in Beijing.5. Amy _ (be) here just now.6. _ (be)there a fly on the table just now?7. My father _ (watch) TV every evening .8. My mother _ (make) toys these days.9_ Amy _ (read) English every day？10. Chen Jie sometimes _(go)to the park with her sister.11.We (do) housework on Saturdays.12. Mike (study) Chinese on Sundays evening.13. My sister usually (teach) me math at home.14. Lily always (say) hello to me in the morning.15. Lucy often (run) in the park.（二）按要求改句子。1. Ann takes a walk every day.（改为一般疑问句） 2. We use computers in class. (改为否定句) 3. Tom usually play football after school. (改为一般疑问句并作否定回答) 4. She always play the piano at home. (改为否定句) 5. We go to work from Monday to Friday . （改为一般疑问句并作肯定回答） 阅读训练Ben is Mr. Whites little son. He cant do sums(算术题) very well. Mr. White is teaching him. “Whats five plus(加) five?”Ben counts(数) his fingers(手指) and answers , “Its ten.”“Good. Whats twenty minus(减) five?”Ben counts his fingers and toes(脚趾). “Mm Its five . No, its fifteen.” Ben answers slowly.“Whats ten plus twelve, then?” Ben looks at his fingers and toes. They are not enough(足够). Seeing this , Mr. White feels unhappy and says, “Use your head , Ben.”“Thats not enough , either. Ive only got one head.”判断正（T）误（F）。( )1. Mr. White has a little dau