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1、Unit 4 Then and now Introducebe(是)-was, were become(變成)-became bring (帶來)- broughtbuild(建筑)- built buy (買)- bought can(能) - couldcome(來)- came do(做) - did fly (飛)-flewgo (去)- went have ( 有)- had lose (丟失)- lostread (讀)-read run(跑)- ran say (說)- saidsee (看見)- saw take (拿到)- took tell (講述)- told動詞過去式不

2、規(guī)則變化總結(jié): Words名詞,表示“電話”。常用短語：use the telephone 使用電話 on the phone 在打電話eg： Why not just use the telephone ? 為什么不直接使用電話 ？小練習(xí)：（ ）te _ _ ph _ ne A. el ; i B. le ; o Btelephone /telfn/ Words名詞,表示“辦公室”。常用短語：in the office 在辦公室 near the office 在辦公室旁邊eg ： There is a post office near the supermarket . 在超市附近有個郵局

3、。小練習(xí)： worked, in, he , office, the, yesterday. _ He worked in the office yesterday. office /fs/ Words名詞,表示“手機(jī)、移動電話”。常用短語：a mobile phone 一部移動電話eg ： There is something wrong with his mobile phone. 他的手機(jī)出了點(diǎn)問題。小練習(xí)：現(xiàn)在幾乎每個人都有一部電話。 _ Now almost everyone has a mobile phone.mobile phone Expressions ago指的是從現(xiàn)在起

4、到過去時間的某一點(diǎn)的一段時間。 Twenty years ago, she bought things from shops.20年前,她從商店里買東西。eg ：Five years ago， we visited Yunnan. 五年以前,我們參觀了云南。小練習(xí) : He wants _(bring) some English books to school. They _( see) many beautiful birds last week.broughtsaw Expressions某段時間+ago表示前,一般過去時的常見的時間狀語。Twenty years ago. 20年前。eg

5、 : Little Tom was born five years ago. Now he is five years old. Little Tom五年前出生,現(xiàn)在他五歲了。小練習(xí) :Liu Tao could read when he was young .(改為否定句) _ Now Mrs Green has a telephone.(對畫線部分提問) _ Liu Tao couldnt read when he was young. What does Mrs Green have now ? Dialogues Retelling the text! Expand(一)規(guī)則動詞的過去

6、式一般過去時的構(gòu)成1.一般情況下,在動詞原形后面加-ed。look looked play played start started visit visited2.以不發(fā)音e結(jié)尾的動詞,在詞尾直接加-d。live lived use used Expand(一)規(guī)則動詞的過去式一般過去時的構(gòu)成3.以“輔音字母+ y”結(jié)尾的動詞,先將 y 改為i ,再加 ed。study studied try tried fly flied4.以重讀閉音節(jié)（即輔音元音輔音）或r音節(jié)結(jié)尾,末尾只有一個輔音字母的動詞,要先雙寫這個輔音字母后,再加 ed。stop stopped plan planned pref

7、er preferred Expand(二)不規(guī)則動詞的過去式一般過去時的構(gòu)成1.改變動詞中的元音begin began drink drank know knew2.變詞尾的d 為tbuild built lend lent send sent Expand(二)不規(guī)則動詞的過去式一般過去時的構(gòu)成3.與動詞原形一樣cut cut put put cost cost 4.變-ay 為-aid (少數(shù)動詞)say said pay paid lay laid Expand(二)不規(guī)則動詞的過去式一般過去時的構(gòu)成5.采用不同詞根:sell sold teach taught buy bought6

8、.其他am/is was are were have/has had Summarytelephone office mobile phoneago Exercise1. - Did you like the film ? - _. A. Yes, it was interesting . B. Yes, I was. C. No, I dont.2. _ there _ trees on the farm now ? A. Were, any B. Are, some C. Are , anyAA Exercise3. There _ a mobile phone on the desk.

9、A. are B. were C. was 4. Do you like _ piano ? A. play B. playing C. playing theCC Exercise5. Yang Ling and his friend _ to music last week. A. didnt listened B. didnt listen C. doesnt listen6.I often _ flowers in the morning. A. waters B. water C. wateredBA HomeworkWrite a passage titled “ years ago”.