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What’sintheclassroom?blackboarddeskchairwindowdoorSingasong.It’stimetocleanup!cleanourclassroomcleanthedeskcleanthechaircleanthewindowcleanthedoorstandonthechairListenandanswer.WhatareYangMing,Lily,Julia,SallyandWangTaodoing?他们正在做什么？1.YangMingiscleaningtheblackboard.2.Lilyiscleaningthedesks.3.Juliaiscleaningthechairs.4.Sallyiscleaningthewindow.5.WangTaoiscleaningthedoor.be动词(am/is/are)+动词进行时(动词原形+ing)现在进行时句子的基本结构Iamcleaningthedesk.He/sheiscleaningthedesk.Theyarecleaningthedesk.1.She____________(read)abook.她正在看书。2.He______________TV.他正在看电视。3.She____________intheplayground.她正在操场跑步。4.I______________(make)abirthdaycard.我正在做生日贺卡。isreadingiswatchingisrunningammaking动词进行时变化规则1.一般在动词后直接加ing。如:play→playing;clean→cleaning。2.以e结尾的动词，先去掉e，然后加ing，如：dance→dancing；have→having；ride→riding。3.以重读闭音节结尾的单词，双写最后的辅音字母后加ing，如：run→running;swim→swimming;get→getting;sit→sitting。Writethenewwordsandthenewsentences5times!Goodbye!