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课件网) Unit 8 Let's celebrate! Grammar Focus on 基本含义和用法 Present continuous tense 现在进行时 *含义； *句式结构； *句式变换； *一般现在时与现在进行时的区别 现在进行时的含义 (1) I am reading in a library now. (2) Jack is swimming now. (3) Listen! They are singing an English song. 听！他们正在唱一首英文歌。 Jack正在游泳。 我正在图书馆读书。 1.现在进行时可以表示说话时正在进行或发生的动作。 ★现在进行时常与now, at the moment等时间状语, 或look，listen等词连用。 (1) The students are studying Unit 8 this week. 2. 现在进行时也可表示现阶段一直持续的动作，但说话时动作不一定进行，常带有this week, these days等时间状语。 这周学生们在学第八单元。 (2) We are not working on a farm these days. 这些天我们不在农场工作。 (3) I'm writing a long novel these days. 我最近在写一部长篇小说。 (2) He is playing the violin. (3) They are playing lively music for the dance. (1) I am dancing. 现在进行时的结构 主语 V-ing be动词(am/is/are) ① We use am + ing form of a verb with the subject ____. ② We use is + ing form of a verb with the subjects _____, _____, and ____. ③ We use are + ing form of a verb with the subjects ____, _____, and ____. I we you they he she it How to make the -ing form of a verb She is playing the violin. I live near a park. Look！Some people are doing morning exercise now. They look lively. live + ly = lively 以ly结尾的特殊形容词 lovely, lonely, friendly ①大多数动词后加ing。 read — drink — meet — reading drinking meeting ②以不发音的e结尾的动词，去掉e, 再加ing。 write — make — have — writing having making ③以ie结尾的动词，变ie为y, 再加ing。 lie — die — lying dying ④以一个辅音字母结尾的重读闭音节动词 (重读闭音节首先必须是重读音节，同时这个音节以辅音因素结尾)， 双写最后一个辅音字母，再加ing。 get — swim — sit — getting sitting swimming We are enjoying spring roll at the moment. Presentation -- 规律速记 现在进行时的用法 主语在句首,am、is、are 跟在后。 现在分词跟着走,其他成分不可丢。 表示动作正进行,句中now将时间定。 一般问句很简单,把be提到主语前。 否定句式这样变,be后只把 not 添。 现在分词的构成 现在分词用途多，进行时态不可缺。 它的构成很好记，动词后缀ing。 词尾若有哑音e，去e 再加没问题。 一辅重读闭音节，这个字母要双写。 还有一点要注意，改ie 为y 再加ing。 序号 动原 三单 现在分词 序号 动原 三单 现在分词 1 read 9 miss 2 begin 10 write 3 chat 11 agree 4 carry 12 dance 5 play 13 get 6 throw 14 swim 7 lie 15 study 8 watch 16 plan Practice 写出下列动词的第三人称单数形式和现在分词形式 reads reading begins beginning chats chatting carries carrying plays playing throws throwing lies lying watches watching misses missing writes writing agrees agreeing dances dancing gets getting swims swimming studies studying plans planning We ask and answer questions using the present continuous tense like this: Am i playying Are you/we/they Is he/she/it Yes, i am. you/we/they are. he/she/it is. No, i am not/’m not. you/we/they are not/aren’t he/she/it is not/isn’t 疑问句结构： 一般疑问句：Be (Am/Is/Are)+ ... ...
