1、四年级上册Unit 2 School ActivitiesPresent Continuous Tense现在进行时(二)动词ing的变化规则1.一般在动词后面加ing。例：read-reading do-doing2.去掉末尾不发音的e，再加ing，但是(be,see)不能去掉，因为e发音。ride-riding dance-dancing (see-seeing)3.以重读闭音节结尾的动词，要双写最后一个辅音字母再加ing。以t结尾以m,n结尾以p结尾以g结尾sit-sitting坐cut-cutting剪put-putting 放get-getting得到swim-swimming游泳r
2、un-running shop-shopping购物stop-stopping停skip-skipping跳绳clap-clapping拍掌drop-dropping掉下dig-digging挖jog-jogging慢跑归纳如下，分四竖记：写出下列动词的ing形式 sing_ play_ sleep _ eat_ read _ paint_ think_ fish_ fly _ make_ write_ dance_ have _ swim_ run_What is he doing?He is drinking water(now).Is he drinking water(now)?Yes
3、,he is.现在进行时句式操练What is she doing?She is cleaning the house.Is she doing her homework?No,she isnt.现在进行时句式操练What are they doing?They are running.Are they writeing?No,they arent.现在进行时句式操练(School Activities)School Activities There are many students in the school now.Look!Some boys are playing basketball and the girls are skipping.Some of the students are playing soccer,others are writing.Some of the students are studying.Some of the students are painting.Who is over there?Oh,its Tom.Hes swimming.Theyre all having a good time.
