题目内容
3.Bob plays sports every day.(用now改写句子)Bobisplayingsports now.
分析 鲍伯每天都做运动.
鲍伯现在正在做运动.
解答 答案:is playing.分析句子,原句是一个一般现在时的句子,用now改写句子,即改为现在进行时的句子,其结构是am/is/are+doing,Bob是三单,故用is,加playing,故得出答案.
点评 基本用法:(1)表示(说话瞬间)正在进行或发生的动作.(2)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)谓语构成:be (am/is/are)+v-ing (动词的现在分词) I'm watching TV now.They're playing football.
(三)现在分词的构成.(1)一般情况下在动词词尾加ing.go→going ask→asking look→looking
(2)以不发音的e结尾的动词,去掉e加ing.have→having take→taking make→making write→writing
(3)以一个辅音字母结尾的重读闭音节,双写最后一个字母,再加-ing.get→getting sit→sitting put→putting run→running
swim→swimming begin→beginning shop→shopping
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