内容正文:
我爱记单词
八年级上册
Unit2 Topic3
Unit2 Topic3
Section A
must的用法
must do sth. 必须做某事
must not(mustn’t) do sth. 不许做某事,禁止
① 表示义务,可以用于肯定句和疑问句
你必须照顾你的父母
You must take care of your parents.
②must的否定式,表示不许,禁止
禁止乱扔垃圾
You mustn’t( must not) throw litter around.
③ must 表示猜测,表示一定, 准是
That woman must be his mother.
④ must 表示劝告,必须做某事,表明事情的必要性和重要性
你必须每天做早操
You must do morning exercises every day.
注意:回答含有must的疑问句时,要用don’t have to 或者needn’t 作为否定回答
Must I keep the door open?
Yes, you must.
No , you don’t have to .
No, you needn’t.不,没有必要
Make similar conversations after the example.
Example:
A: Must we do exercise to prevent the flu?
B: Yes, we must.
A: Must we take some medicine to prevent the flu?
B: No, we don’t have to. /
No, we needn’t.
Pair work
Must we go to see a doctor at once when we have the flu ?
肯定回答: Yes, we must.
否定回答: No, we needn’t. /
No, we don’t have to.
Must I finish my homework now ?
No, you needn’t. /
No,you don’t have to.
journalist [ˈdʒɜ:nəlɪst] 记者
question [‘kwestʃən] 问题
go ahead (经过某人的允许) 开始
prevent [prɪ‘vent] 预防,阻止
prevent sb. from doing sth. 阻止某人做某事
build [bɪld] 增强,建筑
联想方式:bu不 i我 ld 领导
记忆方法:这不是我领导进行建筑的地方
v. build a house 建造一座房子
v. build sb. up 增强…的体质
build 过去式 built
建筑物 building
all the time 一直
finally [ˈfaɪnəli] 最后,最终
联想方式:f飞机 in因为 a安 lly两个翼
记忆方法:飞机因安上两个翼终于飞起来
用法:finally= in the end=at last
crowded [‘kraudid] 拥挤的
联想方式:C(月亮)+row(使……成排)+ded得到
记忆方法:月亮排成排得到的是拥挤的状况
crowded places 拥挤的地方
远离拥挤的地方
keep away from crowded places
throat [θrəʊt] 喉咙
分析:th (the) 特指这个 ro 肉 at 在
记忆方法:这个肉太大卡在喉咙
have a sore throat 喉咙痛
Internet [‘intənet] 因特网
记忆方法:用读音
用法: work on the Internet 通过因特网工作
Flu is a serious illness, what should we do to prevent it?
Listen to 1a and check Dr. Li’s advice...\仁爱新八年级教材\仁爱英语多媒体教学课件\Unit 2\Topic 3\Section A\链接资源\U2T3A-1a.mp3
1.exercise often经常锻炼
2.keep the air fresh保持空气清新
3.go to bed early 早睡
4.wash hands and change clothes often
5.keep our rooms clean保持房间干净
6.drink enough water喝足够多的水
7.take some medicine 吃药