1、过去进行时 谓语构成：时间状语：主句 when 从句主句 while 从句 1.昨天晚上8点你在干什么？我在打扫房间。,was/ were + doing,at 9:00 last night from 6:00 to 8:00 last night at that time this time yesterday,（过进） （过）,（过） （过进）,What were you doing at 8:00 last night? I was cleaning my room.,2.昨天晚上我在写作业时，妈妈回来了。 While I was doing my homework last nigh
2、t, my mom came back. 3.昨天我到家的时候,他正在看电视. He was watching TV when I got home yesterday. 4.昨天我在家里看书时，天下雪了.While I was reading at home yesterday, it snowed. 5.飞机到达威海的时候,天正在下雨。 When the plane arrived in Weihai, it was raining. 6.上周日我在看电视时，你打来电话。 While I was watching TV last Sunday, you called me up.,1.昨天
3、早上9点钟你在干什么?What _at 9 oclock yesterday morning. 2.当李雷在吃早饭时,吉姆进来了.While LiLei _ Jim came in. 3.不明飞行物起飞时,小明正在骑自行车.XiaoMing _when the UFO took off. 4.那时,他们正在做家庭作业.They _at that time. 5. 刚才,我们正在电话上交谈. We _ on the phone just now.,were you doing,was having breakfast,was riding his bike,were doing their ho
4、mework,were talking,【基础训练】,Exercises,1. He _(draw) at eight yesterday evening. 2. The girl _(shop) when her friend _ (see) her. 3. While he _ (cook) dinner, his friend _ (get) out of the shower. 4. He saw the UFO while he _ (walk) down the street.,was drawing,was shopping,saw,was cooking,got,was wal
5、king,The boy was walking down the street_ a UFO landed. The girl was shopping_ she saw the alien get out. _ the alien was buying a souvenir, the girl called the police. _ the alien was visiting the museum, the boy called the TV station.,when,when,While,While,Complete with “when” and “while”,Exercise
6、s,Choose “when” or “while” to fill in the blanks. 1_ Tom was eating supper, it began to rain outside. 2Dont use your cell phone_ you are driving a car. 3What were you doing _Mr. Zhou came in? 4Jim is good at math_ Mary is good at English. 5We were watching TV_ the electricity was off.,While,While,Wh
7、ile,When,When,talk with a policeman,ride a bike,give a report,take photos,2c Use: When the UFO took off, he / she was.While he/she was, the UFO took off.,4. 过去进行时和一般过去时的区别,1）过去进行时表示过去正在进行的动作，而一般过去时则表示一个完整的动作。如：They were writing letters to their friends last night .昨晚他们在写信给他们的朋友。（没有说明信是否写完）They wrote letters to their friends last night .他们昨晚写了信给他们的朋友。（表达了他们已写好的意思，整个写的过程已完成。）,4. 过去进行时和一般过去时的区别,2）当动作延续较长时间时或表示厌烦、赞美等感情色彩时，常用过去进行时表示。如：He was thinking more of others than of himself .他考虑别人的比考虑自己的多。（表示说话者赞扬的口气）The boy was always making trouble then .那时，他总是惹麻烦。（表示说话者厌烦的口气）,
