八年级英语下册(人教版)教学课件：Unit 5 What were you doing when the rainstorm came.ppt

?? 4) 以字母y结尾的单词, 直接加ing。 ????如carrying、playing、studying。 5) 以字母ie结尾的动词, 变ie为y, 再加ing。 ?? die → dying???????????? lie →lying 6) 以元音字母加e结尾, 或以e结尾, 且e发音的 动词, 直接加- ing。 ??? see--seeing????????????be--being 4.使用进行时态的注意事项 1)一些动词, 如see、hear、love、like、know、 remember; understand、have等表示感情、 知觉和状态的词, 一般不用于进行时态。 2) 在there和here引起的句子中, 常用一般现在 时代替现在进行时。 e.g. Here comes the bus. ?????? There goes the bell. 5. 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) 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) 过去进行时 含义: 表示过去某个时刻 正在进行的动作。 结构： was/were + doing 例句： I was having an English class at this time yesterday. 现在进行时 含义: 表示现在 正在进行的动作。 结构： is/am/are + doing 例句： I am having an English class. 6. 4a. Look at the table and write sentences with both while and when. take the car to the car wash shop turn on the radio clean his room leave the house play the piano buy a drink take photos Mary John e.g. While John was taking photos, Mary bought a drink. John was taking photos when Mary bought a drink. While John was playing the piano, Mary left the house. John was playing the piano when Mary left the house. While John was shopping, Mary took the car to the car wash. John was shopping when took the car to the car wash. While John was cleaning his room, Mary turned on the radio. John was cleaning his room when Mary turned on the radio. 4c. What were you doing at these times last Sunday? Fill in the chart. Then ask your partner. A: What were you doing at nine o’clock last Sunday morning? B: I was sleeping. How about you? A: I was doing my homework. B: Youre kidding! Group work You Student1 Student2 9:00 am