九大時(shí)態(tài)詳解_過去進(jìn)行時(shí)

1、.五過去進(jìn)行時(shí)定義：表示過去某個(gè)時(shí)間點(diǎn)正在發(fā)生的事情句型結(jié)構(gòu)：主語+謂語動(dòng)詞+（賓語）謂語動(dòng)詞：was/were +doing (動(dòng)詞ing形式)*注意：進(jìn)行時(shí)態(tài)的中出現(xiàn)的動(dòng)詞必須是持續(xù)性動(dòng)詞，而非短暫性動(dòng)詞。動(dòng)詞ing形式的變化規(guī)則：1. 在詞尾+ing，如playplaying；2. 當(dāng)動(dòng)詞以重讀閉音節(jié)結(jié)尾且結(jié)尾只有一個(gè)輔音的時(shí)候，雙寫末尾的輔音+ing，如runrunning；3. 當(dāng)動(dòng)詞以輔音+e結(jié)尾時(shí)，去e+ing，如makemaking4. 不規(guī)則變化： lielying diedying例1：We were having breakfast at 8:00 this mornin

2、g.例2: I was cleaning my bedroom at 7:00 last evening.例3: Mary was waiting for the school bus then.例4: You were listening to music when I saw you.句型轉(zhuǎn)換：變?yōu)榉穸ň洌篧e were having breakfast at 8:00 this morning. (在be動(dòng)詞之后加not) werent變?yōu)橐话阋蓡柧洌篧ere you having breakfast at 8:00 this morning? (把be動(dòng)詞提到句子最前面，其它不變)回答

3、： Yes, we were. No, we werent.特殊疑問句的變化規(guī)則：三步走，一換二代三提前例1：We were having breakfast at 8:00 this morning.(對(duì)劃線部分提問)一換：換成一般疑問句 Were you having breakfast at 8:00 this morning?二代：把劃線部分用特殊疑問詞代入 Were you having breakfast at 8:00 this morning? doing what三提前：把特殊疑問詞提前 What were you doing at 8:00 this morning?拓展提

4、高：由when引導(dǎo)的時(shí)間狀語從句，從句用一般過去時(shí)，主句用過去進(jìn)行時(shí)You were listening to music when I saw you. 主句：過去進(jìn)行時(shí) 引導(dǎo)詞 從句：一般過去時(shí) 注意：當(dāng)when引導(dǎo)的從句與主句交換位置時(shí)，句子 意思不變，如You were listening to music when I saw you.=When I saw you, you were listening to music. She was reading a book when her mother came back home.=When her mother came back

5、 home, she was reading a book. 由while引導(dǎo)的時(shí)間狀語從句，主句和從句都用過去進(jìn)行時(shí)I was doing my homework while my dad was watching TV last.主句：過去進(jìn)行時(shí) 引導(dǎo)詞 從句：過去進(jìn)行時(shí)=While my dad was watching TV, I was doing my homework.Linda was cleaning her bedroom while her brother was playing outside.=While her brother was playing outside, Linda was cleaning her bedroom.注意：從句要緊跟著引導(dǎo)詞。練習(xí)一：請(qǐng)寫出例 2、3、4的否定句，一般疑問句及其問答。練習(xí)二：請(qǐng)把下列句子改成特殊疑問句(寫出變化步驟)1. The students were watching TV at home last night. 練習(xí)三：用適當(dāng)?shù)囊龑?dǎo)詞，把下列句子連成一句話1. A. Martin was watering the flowers. B. Linda came in.2. A. Cindy and Lucy were studying English.