基础语法之一般现在时

1、 英语基础时态之一般现在时【学习目标】.知识目标1)掌握一般现在时的用法和构成及一般现在时的疑问句、否定句的 构成) 了解动词第三人称单数形式的构成方法.能力目标正确运用一般现在时.情感目标通过例句、解题培养学生归纳总结的能力和团结协作的能力教学重点：掌握一般现在时的用法和构成教学难点：掌握并能灵活运用一般现在时【教学环节】Step 1.知识回顾(判断以下各句中分别使用了什么时态)I play football every Saturday. I played football last Saturday. I will play football this Saturday. I am pl

2、aying football now. I was playing football this time last Saturday. He has been playing football all morning. He has played football for 3 hours. Step 2.导入新知如：I play football every Saturday.Question: when do we use the simple present tenseStep 3.知识汇总一.一般现在时的用法：1）表示现在经常性、习惯性的动作。如：I get up at six ever

3、y day.我每天六点起床。2）表示主语的性格、特征、能力。如：The sky is blue.天空是蓝色的。3）表示客观事实或普遍真理。如：The earth goes around the sun.地球绕着太阳转。4）在if、as soon as、when等引导的时间、条件状语从句中用一般现在时表示将来。（主将从现）If you work hard, you will succeed.其他常见时间状语once a week three times a month 之类的表示频率的词组；always often 、 usually 、 sometimes 等频率副词；on Sundays、

4、every day（week/month/year.） 、in the morning 、at night 等。Can you make sentences like these?般现在时的构成1. be动词的一般现在时态如：Tom is a teacher.构成：主语+be(am,is,are)+ 其它(学生总结)Let s do it!主语人称代词名词Iyouhesheitwethey单数复数beam用be动词的正确形式填空:I Chinese.You Chinese.He Chinese.We Chinese.They Chinese.This girl Chinese.These gi

5、rls Chinese.实意动词的一般现在时态.如：用get的正确形式填空I up at 7:00 every morning.Youup at 7:00 every morning.Sheup at 7:00 every morning.My father up at 7:00 every morning.My classmates up at 7:00 every morning.The weather warm in spring.第三人称单数动词的构成情况加法例词一般情况加-sreadwrite以 s, x, o, ch, sh加-esguess结尾的词fixgowashwatch以辅

6、音字母+y结尾变y为i加-esstudy的词carry注意：havehasI have six classes every day. Tom has six classes every day.Let s do it!Know help fix brush fly worry want catch study do wash go .疑问句型句子中含有be动词。如：Tom is a teacher.-Is Tom a teacher?-Yes, he is. / No, he isn t.构成：BE动词+主语+其他（学生总结）特殊疑问句：What is Tom? 构成：疑问词+ BE动词+ 主

7、语（做一做）He is a good boy. ?They are friends. ?Tom is eleven years 01d.对划线的部分提问 2）句中含有实意动词的疑问句如：I play basketball every day.-Do you play basketball every day?-Yes, I do. / No, I don t.结构：助动词（do） +主语+动词原形+其他特殊疑问句：what do you play?结构：疑问词+ 助动词（do） +主语+动词原形+其他或疑问词+ 一般疑问句（做一做）He likes English. ?She goes to work by bike （对划线部分提问）?4.否定句型如：Tom is not a teacher . 构成：主语+be动词（not ） + 其他（做一做）He is a good boy. ?They are friends. ?若不含be动词I do not （don t ） play basketball every day.结构：主语+don t +动词原形+ 其他Tom does not （doesn t） live in Beijing.结构：主语（第三人称单数）+does not +动词原形+其他