八年级英语知识点整理Unit3
八年级英语知识点整理Unit 3 一、词组
www./doc/008c586c3a3567ec102de2bd960590c69ec3d8a6.html e from electricity来自电
2.change electricity into different kinds of
energy把电转变成各种能量
3.heat energy热能
4.moving energy动能
5.light energy光能
6.sound energy声能
7.one evening一个傍晚
8.buy a packet of sweets买一袋电
9.get me a packet of electricity给我买一
袋电
10.go out出去
11.at last最后
12.buy it in packets装在袋子里买它
13.be like sweets像糖
14.look foolish看起来傻的
15.flow through a wire流过一根电线
16.measure the amount you use测量你使
用的数量
17.get a bill for it因为它得到一张账单
18.be like water像水
19.in a way在一定程度上
20.a bad explanation一个坏的解释
21.be much more dangerous是危险的多
22.a good servant一个好的仆人
23.a dangerous servant一个危险的仆人
24.be careful with electricity小心电
25.look like看起来像
26.scratch his head挠挠他的头
27.change electricity into different forms of
energy把电变成不同形式的能量
28.think of an example想出一个例子
29.the light in a light bulb一个灯泡里的光
www./doc/008c586c3a3567ec102de2bd960590c69ec3d8a6.html e into our flat through thin wires通
过细的电线进入我们的公寓
31.be connected to thick wires与粗的电线
连接在一起32.call the thick wires cables把这些粗的电
线叫做电缆线
33.a power station一个发电站
www./doc/008c586c3a3567ec102de2bd960590c69ec3d8a6.html e back回来
35.ask politely有礼貌地问
36.have my packet of electricity拥有我那
一袋电
37.a grin on his face脸上的一个露齿笑容
38.packets that contain electricity含有电的
包装袋
39.the chemicals inside里面的化学物质
40.produce electricity生产电
41.play the guitar弹吉他
42.play chess下国际象棋
43.speak three languages说三种语言
44.borrow your new bicycle借你的自行车
45.carry your bag for you为你拿包
46.get you a chair拿给你一把椅子
47.deal with this problem解决这个问题
48.a vacuum cleaner一个吸尘器
49.a washing machine一个洗衣机
50.a rice cooker一个电饭煲
51.believe in safety first相信安全第一
52.turn on the water heater打开热水器
53.put the meat in the fridge把肉放冰箱里
54.give the puppy a bath给小狗洗澡
55.cover the meat盖住肉
56.lock the door锁住门
57.look through the peephole透过猫眼看
58.pick up all your toys from the floor从地
connect to和connect with的区别上捡起你所有的玩具
59.test the water测试水(温)
60.be polite to customers对顾客有礼貌
61.dress properly in the office在办公室穿
着合适
www./doc/008c586c3a3567ec102de2bd960590c69ec3d8a6.html e electricity in one way or another在
一个方面或者另一方面用到电
63.make all kinds of foods做各种商品
64.everyday wonders每日奇迹
www./doc/008c586c3a3567ec102de2bd960590c69ec3d8a6.html e electricity to bring entertainment and
news to millions of families
用电把娱乐和新闻带给上百万个家庭
66.the use of electricity电的用途
67.to save electricity为了节约电
二、词汇知识点
1.servant (n.) 仆人serve (v.) 服务service (n.) 服务
2.electricity (n.) 电electric (adj.) 电的(修饰具体某一样电器:a electric kettle一
个电水壶)
electrical (adj.) 有关电的(用于电器的总称:electrical appliances电器)
3.foolish (adj.) 愚蠢的fool (n.) 傻瓜/(v.)愚弄
4.monthly (adv.) 每月一次month (n.) 月份
5.explanation (n.) 解释explain (v.) 解释
6.careful (adj.) 小心的care (n. / v.) 关心carefully (adv.) 小心地careless
(adj.) 粗心的
7.invisible (adj.) 看不见的visible (adj.) 看得见的
8.different (adj.) 不同的difference (n.) 不同点;区别
9.power (n.) 力powerful (adj.) 强大的
10.politely (adv.) 有礼貌地polite (adj.) 有礼貌的impolite (adj.) 没礼貌
11.contain (v.) 包含container (n.) 容器
12.clear (adj.) 清楚的clearly (adv.) 清楚地
13.bury-buried-buried (v.)埋葬buried (adj.)埋葬的
14.connect (v.)连接connected (adj.) 连接
15.behave (v.)表现behavior(n.)行为
三、课文分析
1.I’m going to buy a packet of sweets.
a packet of 意为“一袋”。句中的sweets作名词,意为“糖果”;sweet也可作形容词,意为“甜的”。
2.Does anyone want anything?
由any-/no-/every-/some-和-body/-thing/-one构成不定代词
(1)复合不定代词作主语时,谓语动词用单数 e.g. Nobody likes being laughed at.
e.g. Be quick, someone is waiting for you outside.
(2)形容词放在复合不定代词后面 e.g. I have something important to tell you.
3.Can you get me a packet of electricity?
这里的get意思是“买”:get/buy sb sth=get/buy sth for sb为某人买东西
4.Benny laughed.
laugh(v.)笑laugh at sb嘲笑某人laughter(n.)笑声(不可数)
5.I’ve tricked Daisy at last.
(1)trick(v.) sb=play a trick(n.) on sb.捉弄某人
(2)at last=in the end=finally最后;终于
6.She doesn’t even know what electricity is.
even在此作副词,表示“甚至”,用来强调出乎意料。
even还可以用于形容词或者副词的比较级前,表示“甚至更”。
e.g. She felt even worse today. (类似:even/much/far/still/a little/a bit+比较级)
7.She’ll really look foolish.
(1)句中的look为系动词,后接形容词foolish作表语(look+形容词;look at+副词)
(2)real(adj.)真的really((adv.)真正地realize(v.)意识到
8.She thinks that she can buy it in packets, like sweets.
(1)in表示以怎样的形式购买。We sell the fruit in boxes. 划线提问How do you sell fruit?
(2)like-unlike(介词,没有时态变化) like-dislike (动词,有时态变化)

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