江苏省连云港市岗埠中学八年级英语上册 Unit 8 Natural disasters period 5教案 （新版）牛津版.doc

unit 8 natural disasters period 5教学目标1. help the students learn the past continuous tense with conjunctions “when”, “while” and “as”.2. enable the students to use “when”, “while” and “as” correctly when they talk about their activities.重点难点3. help the students learn the past continuous tense with conjunctions “when”, “while” and “as”.4. enable the students to use “when”, “while” and “as” correctly when they talk about their activities.教学过程教师复备step 1 warming up.1. ask and answer some question about what you were doing.step 2 presentation1 s: i was . when mr. yuan came in.rule: 用when引导时间状语从句，两个动作可以先后发生，也可以同时进行. (表示正在进行时，用延续性动词)2.while i was talking,you were listening.while i was talking, someone walked by.rule: 用while引导时间状语从句，两个动作同时进行. (表示正在进行时，用延续性动词)while i was talking, someone walked by.i was talking when someone walked by.3.as i was trying to find my way out, i suddenly heard some noise above me.t: as的同时进行主要表示动作发生的背景或条件，意思为“随着”；“一边，一边”动作先后when动作同时when, while and as正在进行的动作必须用进行时step 3 practice1. complete the exercises on page 98.2. make sentences with while, “when” and “as”.3. make a dialogue with your partner.step 4 consolidation.a. fill in the blanks with the proper tense of the given verb.1. millie _(look) for a video about earthquakes when simon _ (see) her in the library yesterday.2. when i got home last night, mum _ (watch) tv.3. what _ you _ (do) at 9:00 p.m. last night?b. fill in the blanks with a proper conjunction when, while or as.1. _simon arrived, amy was reading.2. i was reading english _ the teacher came in.3. _my mother was cooking, the phone r