广东省2017高考英语二轮限时训练：18 定语从句

　　山东省宁阳县第二十五中学八年级英语下册《Unit3 What were you doing when the UFO arrived（第1课时）》学案（无答案） 人教新目标版

　　课题名称 八年级下册Unit3

　　What were you doing when the UFO arrived ? 课时 共5课时 授课班级

　　第1课时 总课时数 11

　　教学重点 过去进行时

　　was / were + doing sth.

　　教学难点 过去进行时时态的熟练运用，when 和while 的用法区别

　　课前准备 The learning papers ,the PPT ,the listening materials ,the notes.

　　学

　　案

　　一 预习.

　　(一)学习方式：按要求自主完成下列内容.

　　(二)预习内容：

　　1、朗读并识记P18-19的单词及短语.

　　2、翻译P18-19的句子.

　　(三）预习检测：补全句子

　　1.-What were you doing when the thief got into your house?-I was ______________(做晚饭).

　　There is a new_______________(理发店) next to my house.

　　I was waiting for a bus when the UFO______________(降落) the street.

　　The giel was shopping when the alien _______________(出来) the UFO.

　　预习质疑：

　　.

　　学习目标：1.Learn to talk about past events.

　　2. Use “when/ while”and the past progressive tense.

　　二、：

　　（一）：组内交流课前自主学习内容.

　　点拨：

　　过去进行时

　　1.含义：表示过去的某一时刻或某一时间内正在进行或发生的动作。 2.构成：was/were +v-ing。 3.标志：at that time, this time yesterday, all the evening, from 8:00 to 10:00yesterday, just then, at nine yesterday, when等表示明确有具体的时间状语。eg：

　　I was doing my homework at this time yesterday.

　　What was Tom doing at ten yesterday.

　　I was eating dinner when the phone rang.

　　when与while用法

　　1.when是“当……时候”，相当于at that time,既可以表示某一时刻又可以表示某一段时间，所以when引导的时间状语从句动词既可以是延续性的，又可以是非延续性的。when引导的时间状语如果是一般过去时，主句一般用过去进行时。而while也意为“当……时候””，相当于during the time，表示某一段时间历里的情况，故其引导的时间状语从句中的动词必须是延续性的。eg：While I was watching TV, my mother came back.=When my mother came back, I was watching TV.

　　2.while重在强调其后的动作与助于动作的对比，表示“与此同时”。eg：

　　She was listening to music while I was playing computer games.

　　（）针对性练习

　　1）_____ the teacher came in, we were talking and laughing.

　　2)I got home______ my mother was cooking dinner.

　　3)They were dancing _____ we came to meet them.

　　4)_______the alien was visiting the museum, the boy called the police.

　　：1.Answer the questions:

　　Do you know UFO?

　　Have you seen it?

　　What were you doing when the UFO arrived?

　　2.完成1a 2a 2b 听力.

　　3. 3c .

　　Groupwork .Make conversations .进行替换练习会话.

　　课堂小结:

　　四．：

　　（一）．选择填空：

　　1. Who jumps ________ in your class?

　　A. far

　　B. Farther

　　　C. Farthest

　　　D. longer

　　2. You must have _______ Beyonce, and she is a very famous singer who sang a song for the 77th Annual Academy Awards(第77届奥斯卡金像奖颁奖典礼).

　　A. heard fromB. heardC. heard on　D. heard about

　　3. We must hurry up, and the plane will _______ in five minutes.

　　A. leaveB. goC. take off　D. lands on

　　4. Ted ___ while he ___ his bicycle and hurt himself.

　　A.

　　fell, was ridingB. had fallen, rode　

　　C. fell, were ridingD. had fallen, was riding

　　5. The reporter said that the UFO ___ east to west when he saw it.

　　A. was traveling B. Traveled C. had been traveling D. has traveled

　　6. When I arrived at his office, he ___ on the phone.

　　A. spoke　B. was speaking C. had been speaking　D. had spoken

　　7. His computer is ____ expensive _____ Tom’s.

　　A. as; asB. so; asC. much; asD. as; than

　　8. Tom ___ into the house when no one ___.

　　A. slipped, was looking　B. slipped, had looked

　　C. had slipped, looked

　　D. was slipping, looked

　　（二）．用介词或介词短语填空。

　　1.They were talking ____ the phone .

　　2.I was ____ the barber’s chair .

　　3.The boy was walking ____ the street when a UFO landed .

　　4.I had a very unusual experience ____ Sunday .

　　5.The alien visited the Museum ____ Flight .课