现在进行时课件(复习).ppt

一、现在进行时的基本用法 (1)现在进行时表示现在（说话瞬间）正在进行或发生的动作。 （2）现在进行时也可表示当前一段时间内的活动或现阶段正在进行的动作。 二、时间状语 now,right now,at this moment，look,listen，these days,this week 三、现在进行时的句式： 1.肯定句 主语+be+doing 例句：我正在做我的家庭作业。 Eg: I am doing my homework. 2.否定句 主语+be+not+doing 例句：我现在没在做作业 Eg: I am not doing my homework. 3.一般疑问句： Be+主语+doing? 肯定回答： Yes，主语+be. 否定回答： No,主语+be+not. 例句：你正在做你的家庭作业吗？ Eg: Are you doing your homework? 是的，我在做作业。 Yes,I am. 不，我没做作业。 No,Im not 四、现在分词的构成规则： 1.一般在动词词尾加-ing， 2.以不发音e结尾，去e加-ing， 3.以重读闭音节结尾的动词，末尾只有一个辅音字母，应先双写这一字母，再加-ing。 双写的的词有:put，sit，cut,get,forget，shop，stop， begin,swim 特殊变化： 以“ie”为重读音节结尾的单词，一般变“ie”为y 后再加－ing, lie--lying平躺，die--dying死亡 She read is ing now. Listen! The bird is sing ing. Look! The boy is play soccer. ing They watch TV are ing now. 现在进行时 What is he doing? He is writing. What is she doing? She is reading. 现在进行时 What are you doing? I am running. 现在进行时 What is he doing? He is playing computer. 现在进行时 What is he doing? He is playing basketball. 现在进行时 What is she doing? She is drinking. 现在进行时 What are you doing? I am playing soccer. 现在进行时 Is he drawing? Yes, he is. 现在进行时 What are they doing? They are talking. （basketball. (2)句中用到“Listen！” “Look!” “Keep quiet” “Don’t make noise!”等提示语时，表明说话间另一个动作正在进行，这时，句子也要用现在进行时。Eg:Keep quiet ! The teachers are talking in the office.