初中英语语法一般现在时专项讲解及练习.docVIP

一般现在时 一、出现以下情况是用一般现在时： 1)经常性、习惯性的动作或存在的状态。e.g. I go to school on foot. He is very busy now. I often do my homework at 7:00. He usually goes to the park on Sunday morning. 2)表示主语的特征、性格、能力、爱好等。 e.g. He can swim. I work hard. I like watching TV. 3)表示客观真理 e.g. There are seven days in a week. The moon moves round the earth. 二、一般现在时的句式变化： 1)表示动作， 一般人称作主语的，变否定句须在动词前加助动词don’t；变一般疑问句须在句首加助动词do。 E.g.肯定句 They have lunch at 12:00. 否定句 They don’t have lunch at 12:00. 疑问句 Do they have lunch at 12:00? 肯定回答：Yes, they do. 否定回答：No, they don’t. 2）单三人称做主语的，变否定句须在动词前加助动词doesn’t；变一般疑问句须在句首加助动词does。 e.g. 肯定句：He goes to school by bike.否定句：He doesn’t go to school by bike. 疑问句：Does he go to school by bike? ’t 1. She ______ (go) to school at seven o’clock. 否定句： 一般疑问句： 2. They usually _____ up at 17:00.(get ) 否定句： 一般疑问句： 3. Amy ____ (be) here just now. 否定句： 一般疑问句： 实际操练 1. I have many books. （改为否定句） 2.Tom does his homework at home. 否定句: 一般疑问句： 3.Mingming usually waters the flowers. 否定句: 一般疑问句 4.Su Yang usually washes some clothes on Saturday. 否定句: 5. I usually play football on Friday afternoon. 否定句: 一般疑问句： 强化训练 一、写出下列单词的第三人称单数形式 1. work__________???? read__________???? clean__________???? write__________2. teach__________???? wash__________???? guess__________???? watch__________3. go__________????? do___________??? 4. study__________???? fly__________???? cry__________???? play__________5. have__________ 二．选择( 　) 1. _____ you have a book?　　A. Do　 B. Are　 C. Is　 D. Have(　 )2. They _________ on a farm. 　　A.are working　 B. is work　 C. working　 D. is worked(　 ) 3. Does Peter like to watch TV?__________. 　　A. Yes, he like　 B. No, he doesn’t　 C. Yes, he’d like　 D. No, he likes( 　)4. She doesn’t __________ her homework in the afternoon.　　A. doing　 B. to do　 C. does　 D. do( 　)5. How ____________ Mr. Brown ___________ to America?　　A. do, go　 B. is, go　 C. does, go　 D. does, goes(　 )6. Where’s my camera? I____________ it.　　A. am