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Chapter 4 A dangerous servant
一 重点词汇
servant n. 仆人 change….into…v. 把…变成
a packet of sweets n. 一包糖果 trick v. 欺骗
explanation n. 解释，说明 at last adv. 最后
be careful with 对…小心 look like v. 看起来像
flow v. 流动 scratch v. 抓、
invisible adj. 看不见的 measure v. 测量
form n. 形式 amount n.. 数量，总量
energy n. 能量 bill n. 帐单
light bulb n. 电灯泡 monthly adv. 每月
be connected to v. 与…连接 in a way 在某种程度上
bury v. 埋葬 grin n. v. 露齿而笑
meter n. 计量器，电表 cable n.. 电缆
拓展词汇
electricity n. 电 power station n. 电站
produce v. 产生 energetic adj. 精力充沛的
movement n. 运动 explain v. 解释，说明
contain v. 包含
二 重点句式
宾语从句
1） she doesn’t even know what electricity is
2） do you know what electricity is?
3） Can you tell mew what it looks like?
4） Do you know where electricity comes from?
三 重点语法
情态动词can ,must ,may 的使用法
四 教学建议
1．Reading
1) ask the students to tell what the items are in the pictures on page 44 before doing Exercise A.
2) ask the students to act out the dialogue in roles after learning the whole passage.
2. listening
it’s difficult for the student to understand the situation. Therefore, the teacher should give an explanation before doing this exercise
3. Language
it is necessary for teachers to tell the students the differences of usage about the three words “can, must, may:” after studying the whole section.
4. Speaking
stress that students must pay close attention to pronouncing the correct sound. Then ask them to do A1, A2, and A3.
5. Writing
ask each student to think of one rule for the classroom when they do Exercise B2.
五 人文教育
1．Don’t waste electricity.
2．Use electricity safely.
3．Obey rules anytime, anywhere.
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