UNIT 1 LESSON 3 My Class Library--一般過去時知識點.ppt

1、Unit 1,Lesson 3 My Class Library. 一般過去時知識點,一般過去時動詞變過去式,past,now,future,動詞過去式 的構(gòu)成,規(guī)則動詞 regular verbs,不規(guī)則動詞 irregular verbs,規(guī)則動詞過去式的構(gòu)成,1、一般在動詞末尾加 ed,look Walk paint play clean Visit Want cough watch,look ed Walked painted played cleaned Visited Wanted coughed watched,2、結(jié)尾是 e 的動詞只加 - d,live hope use,li

2、ved hoped used,3.重讀閉音節(jié)詞， 先雙寫這個輔音字母，再加ed,stop pat,stopped patted,4. 以“輔音字母+y”結(jié)尾的詞， 先變“y”為“i”再加ed,study Worry Early Happy,studyied Worryied Earlyied Happyied,不規(guī)則動詞過去式的構(gòu)成,1.過去式與原形一樣,letlet（讓）,putput (放下）,cut cut（砍，剪）,readread（讀）,2.把元音字母變成“a”,come came give gave become became drink drank begin began,剩余不

3、規(guī)則動詞,剩余不規(guī)則動詞表,Infinitive Past Tense am, is are do go have make get,Infinitive Past Tense eat say see,was were did went had made got,ate said saw,一般過去時肯定句變否定句,be動詞類 否定句 實義動詞類,1 （be動詞類）在表示過去存在的狀態(tài) 的句子中在was, were的后面加上not。,如： 肯定句： He was in the park the day before yesterday. 否定句： He was not in the park t

4、he day before yesterday. 肯定句： We were busy last week. 否定句： We were not busy last week.,2（行為動詞類）要在行為動詞的前面加助動詞didnt. 然后把動詞過去式改為動詞原形。即：didnt + 動詞原形,肯定句： She played the violin last night. 否定句： She didnt play the violin last night. 肯定句： They swam in the lake yesterday. 否定句： They didnt swim in the lake ye

5、sterday.,一般過去時否定句練習(xí),肯定句: They made a kite a week ago. 否定句：They didnt make a kite a week ago. 肯定句： He was ill yesterday. 否定句：He was not ill yesterday. 肯定句：The cat ate a bird last night. 否定句：The cat didnt eat a bird last night.,一般過去時的一般疑問句,1.把was, were放在句首, 其余位置不變。,（1） He was born in Shanghai. Was he born in Shanghai? (一般疑問句) Yes, he was. (肯定回答) No, he wasnt. (否定回答),一般過去時表示過去某個時間發(fā)生的動作或存在的狀態(tài)，常和表示過去的時間狀語連用。 yesterday（昨天） last night（昨天晚上） last week （上周） last Sunday（上周日） in 1990 just now （剛才） long long ago（很久以前）,（2）They were in Li Yans home last night. Were they in