人教精通版英語五下Unit 5I39;m cleaning my roomlesson 30課件

Lesson29現(xiàn)在進行時的含義與構成現(xiàn)在進行時的含義與構成1.含義：表示現(xiàn)在含義：表示現(xiàn)在正在正在進行或一段時間內(nèi)進行或一段時間內(nèi)正在正在進行的動作。進行的動作。2.構成：構成：be(am,is,are)+動詞動詞現(xiàn)在分詞現(xiàn)在分詞（動詞（動詞-ing）eg:He is reading a book now.I am writing.Theyre eating.3.動詞動詞-ing 變化規(guī)則：變化規(guī)則：1）一般在動詞原形后加）一般在動詞原形后加 ing.eg:play-playing watch-watching2)以不發(fā)音的以不發(fā)音的e 結尾的動詞結尾的動詞,去去e 加加ing.eg:take-taking come-coming3)倒數(shù)第二個字母為元音字母時，雙寫詞尾，再加倒數(shù)第二個字母為元音字母時，雙寫詞尾，再加ing.eg:run-running begin-beginning4.標志性詞語：標志性詞語：nownow，listenlisten，looklook，Its 8 oclock.Its 8 oclock.-Is he watching TV?-Is he playing football?Whats he doing?-Yes,he is.-No,he isnt.He is playing computer games.look at the picture talk about the pictureAre you looking at this picture?Yes,I am.No,Im not.Are you talking about this picture?Yes,I am.No,Im not.moon Is he looking at the moon?No,he isnt.Hes looking at the sun.sun-Is he.?-Yes,he is./No,he isnt.He is.He is playing the violin.He is painting.pairworkAre you .?lets learn.