1、名詞變復(fù)數(shù)變化規(guī)則 (一)規(guī)則變化 名詞單數(shù)變復(fù)數(shù)，直接加-s占多數(shù)； s,x,z,ch,sh來結(jié)尾，直接加上-es； 詞尾是f或fe，加-s之前先變ve； 輔母+y在詞尾，把y變i再加-es； 詞尾字母若是o，常用三個(gè)已足夠， 要加-es請(qǐng)記好，hero,tomato,potato。 (二)不規(guī)則變化 男人女人a變e，鵝(goose)足(foot)牙(tooth)oo變ee； 老鼠(mouse)虱婆(louse)也好記，ous變ic； 孩子加上ren，魚鹿綿羊不用變。,一般過去時(shí)的用法與結(jié)構(gòu)詳解,時(shí)態(tài)和時(shí)間,表示：,past,now,future,3,動(dòng)詞過去式 的構(gòu)成,規(guī)則動(dòng)詞 regul

2、ar verbs,不規(guī)則動(dòng)詞 irregular verbs,4,規(guī)則動(dòng)詞過去式的構(gòu)成,1、一般在動(dòng)詞末尾加 ed （掌握）,look Walk paint play clean Visit Want cough watch,look ed Walked painted play ed cleaned Visited Wanted coughed watched,6,2、結(jié)尾是 e 的動(dòng)詞只加 - d (了解),live hope use,lived hoped used,7,3.重讀閉音節(jié)詞， 先雙寫這個(gè)輔音字母，再加ed,stop Pat,stopped Patted (掌握),8,4.

3、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,9,不規(guī)則動(dòng)詞過去式的構(gòu)成,1.過去式與原形一樣(了解),letlet（讓）,putput (放下）,cut cut（砍，剪）,readread（讀）,letlet（讓）,putput (放下）,11,2.把元音字母變成“a”,come came（掌握） give gave Become became drink drank（了解） begin began,12,剩余不規(guī)則動(dòng)詞,剩余不規(guī)則動(dòng)詞表,Infinitive

4、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,14,一般過去時(shí)肯定句變否定句,Be動(dòng)詞類 否定句 實(shí)義動(dòng)詞類,16,1 （be動(dòng)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 the day before yeste

5、rday. 肯定句： We were busy last week. 否定句： We were not busy last week.,17,2（行為動(dòng)詞類）要在行為動(dòng)詞的前面加助動(dòng)詞didnt. 然后把動(dòng)詞過去式改為動(dòng)詞原形。即：didnt + 動(dòng)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 yesterday.,18,一般過去

6、時(shí)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.,19,一般過去時(shí)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 Sha

7、nghai? (一般疑問句) Yes, he was. (肯定回答) No, he wasnt. (否定回答),21,一般過去時(shí) 1一般過去時(shí)表示過去某個(gè)時(shí)間發(fā)生的動(dòng)作或存在的狀態(tài)，常和表示過去的時(shí)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）,22,（2）They were in Li Yans home last night. Were they in Li Yans home last night? （一般疑

8、問句） Yes, they were. (肯定回答) No, they werent. (否定回答),23,一般過去時(shí)一般疑問句及其肯否定回答練習(xí)題,They had a good time in the park. 一般疑問句： Did they have a good time in the park? 肯定/否定回答： Yes, they did. No , they didnt.,24,2. Ann did her homework yesterday evening. 一般疑問句： Did Ann do her homework yesterday evening? 肯定/否定回答：

9、 Yes, she did. No, she didnt.,25,3. I read an English book last week. 一般疑問句： Did you read an English book last week? 肯定/否定回答： Yes, I did. No, I didnt.,26,4. My brother was in the park just now. 一般疑問句： Was your brother in the park just now? 肯定/否定回答： Yes, he was. No, he wasnt.,27,一般過去時(shí)練習(xí)題,Her father _ (read) a newspaper last night. We _(go) to the zoo yesterday. _ you _ (visit) your relatives last Spring Festival? _ he _ (fly) a kite on Sunday? Yes, he _. It _ (be) Bens birthday last Friday. We all _ (h