小学一般现在时 实义动词PPT课件

1、.,1,小学一般现在时 -实义动词,.,2,第一，一般现在时：,1.表示事物或人物的特征、状态。,2.表示经常性或习惯性的动作。 句中通常有关always , usually , often , sometimes ,every,3.表示客观现实。,1. be动词：主语+be(am,is,are)+其它。,The sky is blue.天空是蓝色的。,I get up at six every day.我每天六点起床。,The earth goes around the sun.地球绕着太阳转。,2.行为动词：主语+行为动词(+其它)。,We study English.我们学习英语,I a

2、m a boy.我是一个男孩。,当主语为第三人称单数(he, she,it)时，要在动词后加-s或-es。,Mary speaks Chinese.玛丽喜欢汉语。,第二，现在时的构成，肯定句中。,.,3,一般疑问句：Be +主语+其它。 如： -Are you a student -Yes. I am. / No, Im not.,否定句：主语+ dont( doesnt ) +动词原形(+其它)。 如：I dont like bread.,特殊疑问句：疑问词+一般疑问句。如：Where is my bike?,1. be动词的变化。,否定句：主语+ be + not +其它。 如：He is

3、 not a worker.他不是工人。,2.行为动词的变化。,一般疑问句：Do( Does ) +主语+动词原形+其它。 如：- Do you often play football? - Yes, I do. / No, I dont.,.,4,当主语为第三人称单数时，要用does构成一般疑问句。如： - Does she go to work by bike? - Yes, she does. / No, she doesnt.,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）,.,5,(2)结尾是s, x, sh, ch, o,前为辅音字母,watches

4、 teaches goes does washes 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,runs gets likes takes plays climbs,(1)多数动词直接加s:,.,6,一、变否定句。 1. He wants a book. 2. Jimmy washes hands before dinner. 3. Lisa likes milk very much. 4. They walk to school. 5. Lingling and Dandan are 10 years old. 6. I am Chinese. 7. Ben is from America.,.,7,二、变一般疑问句并作肯定和否定回答。,1.He wants a book. 2. Jimmy washes hands before dinner. 3. Lisa likes milk very much. 4. They walk to school. 5. Lingling