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Yes, _______________.4. What________they______(do)? They_______________(do one’s homework).5. Look, the boys __________________ basketball on the playground.6. Where is Mike? He_______________(swim) in the swimming pool.7. Listen, who______________(sing) in the classroom? Oh, Mary _______________(sing) there.1. The boy is playing basketball.1)改為否定句:2)改為一般疑問句: 肯定回答:3) 對’’is playing basketball’’提問:4) 對“the boy”提問:2. They are singing in the classroom.1) .改為否定句:2) 改為一般疑問句: 否定回答:3)對’’are singing’’提問:4)對“in the classroom”提問:1. Who_____ over there? B. are singing C. is singing 2. It is eight o’clock. The students________ an English class. B having C. is having D. are having3. Keep quiet! My grandparents _____________. sleeping sleeping 4. Listen, the babies__________in the sitting room. crying crying 一般現(xiàn)在時(shí) 表示通常性、規(guī)律性、習(xí)慣性、真理性的狀態(tài)或者動(dòng)作。 肯定答語Yes,主語+be,否定答語No,主語+be not。(2)否定式:be+not+ving(1)肯定式:be+ving1. 現(xiàn)在進(jìn)行時(shí)表示(說話瞬間)正在進(jìn)行或發(fā)生的動(dòng)作。Are you playing the puter game?當(dāng)主語是第三人稱單數(shù)時(shí):動(dòng)詞變相應(yīng)的第三人稱單數(shù)形式主語為第三人稱單數(shù)時(shí)動(dòng)詞變化規(guī)律情況構(gòu)成方法讀音例詞一般情況加 s清輔音后讀/s/濁輔音和元音后讀/z/swimswims;helphelps;likelikes以輔音字母+o結(jié)尾的詞加 es讀/z/gogoes,dodoes以s,sh,ch,x等結(jié)尾的詞加 es讀/iz/watchwatches,washwashes以輔音字母+y結(jié)尾的詞變y 為i再加es讀/z/studystudies try tries,carry carries不規(guī)則變化have和be動(dòng)詞變have 為 has變be為am,is,are havehasbeam,is,areA. 寫出下列單詞的第三人稱單數(shù)talk_______ forget_______ stop________play________ buy_______fly_________ study_________make_____________ take______love______bee____ ride______ listen_____ wash______ teach_____