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1、Lesson29現(xiàn)在進行時的含義與構(gòu)成現(xiàn)在進行時的含義與構(gòu)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(gòu)成:構(gòu)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(jié)尾的動詞結(jié)尾的動詞,去去e 加加in
2、g. 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(biāo)志性詞語:標(biāo)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 a
3、t the picturetalk 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.