现在进行时

现在进行时讲解与练习 作谓语的动词用来表示动作（情况）发生时间的各种形式称为时态。 现在进行时表示1、现在（说话的瞬间）正在进行或发生的动作，强调“此时此刻”。E.g. He is reading . They are talking now. 2、当前一段时间内的活动或现阶段正在进行的动作。E.g. They are working these days. 3、 某些动词的现在进行时，表预定的计划或即将发生的动作。E.g I am coming. 其结构为be+现在分词. 现在分词的变法有 1、一般在动词词尾加上-ing ,E.g. jump 2、以不发音字母e结尾的动词，先去e，再加-ing. E.g have  write 3、.以重读闭音节末尾只有一个辅音字母结尾的词，它前面是单个元音字母时要先将词尾的辅音字母双写，再加上-ing. E.g. sit put   其句式变换都在be上做文章。 E.g. He is buying a bike.  Is he buying a bike? He isn’t buying a bike. 一般由look,listen,now, at this moment等时间状语做标志。 尽管现在进行时比较简单，但在做题过程中也常会犯一些错误，常见的错误有如下几种： 专项训练： 一 、单选 1、 Look! He _____their mother do the housework. A. is helping     B. are help     C. is help    D.is helpping 2 、_____are the boys doing ? They are singing in the room. A .Who            B .How          C.What         D.Where 3、 Don’t talk here. My mother _____. A. is sleeping    B .are sleeping  C. sleeping    D .sleep 4 、Danny ______. Don’t call him. A. is writeing    B .is writing    C.writing      D .writes 5 、–When_____he_____back? – Sorry, I don’t know. A. does,come       B.are coming    C.is come    D.is coming 答案：A  C  A  B  D 二 、填空 1、 It’s ten o’clock. My mother _____(lie)in bed. 2、 What____he _____(mend)? 3、 We _____(play)games now. 4、 What ____you____(do) these days? 5、 ____he ___(clean) the classroom? 6、 Who____(sing)in the next room? 7 、The girl____(like)wearing a sweater. Look! She ____(wear)a red sweater today. 答案：1 is lying   2 is mending   3  are playing  4 are doing   5 Is cleaning  6 is singing  7 likes ;  is wearing