八年级第二学期英语词组
U3词和词组
 
1.          electricity (n.) 电—electric (a.) 电的;电动的—electrical (a.) 电的；与电有关的 —electronic (a.) 电子的
        an electric fan/ light电扇/ 电灯
        an  electrical appliance  家用电器
      an  electronic calculator  电子计算器
2.        foolish (a.) 愚蠢的—  stupid, silly
fool (n. & v.) 傻瓜，愚弄
       
3.        servant (n.) 仆人— service (n.) 服务— serve (n.) 服务
4.        monthly (adv.) 每月一次，在某种程度 ( = once a month );
adj. 每月一次的
—      month (n.) 月
weekly
 
5.        explanation (n.) 解释— explain (v.) 解释
6.        careful (a.) 仔细的— carefulness (n.) 仔细— careless (a.) 粗心的— carelessness (n.) 粗心—
care (n. & v.) 关心
7.        invisible (a.) 看不见的— visible (a.) 看得见的— vision (n.) 视觉— visual (a.) 视觉的
8.        connect (v.) 连接—join together 
connection (n.) 连接
9.        politely (adv.) 礼貌地— polite (a.) 礼貌的— politeness (n.) 礼貌— impolite (a.) 没礼貌的
10. behave (v.) 行为— behavior (n.) 行为
11. contain v.  ------ hold  包含；含有；
container    n.    容器
12. clear  adj.      clearly  adv.  明显地
13. in a way = partly
 
14. at last = in the end; finally
15. danger  n.    ------  dangerous  adj.
16. 看注释写单词
explanation------words that make something clear
wire ------something that carries electricity
contain ------have something inside
bill ------a piece of paper that shows how much you have to pay
burry -----put … in the ground
connect  = join together
electricy ----- power that comes through wires and can make heat and light, and move things
energy ----- power that makes things work
form ------ shapes or kinds
invisible ---- that cannot be seen
measure ----- finding the amount, size, weight, etc. of something)
meter ---- machine that tells you the amount used
monthly ---- once a month
trick ------ plays a joke or make fun of somebody
17. change…into… 把…改变成…
18. different kinds of energy不同种类的能量
different forms of energy不同形式的能量
19. heat energy  热能
moving energy  动能
light energy    光能
sound energy  声能
20.  a dangerous servant  一个危险地仆人
21.  a packet of sweets  一袋糖果
    a packet of electricity
    a packet of crisps  一袋薯片
22. trick sb.  戏弄某人
play tricks on sb. 戏弄某人
23. look foolish  看上去愚蠢
  She will really look foolish.她一定会出洋相的。
24.  flow through a wire  通过电线流淌
25.  in a way    在某种程度上
26.  be careful with  对…小心；小心对待。。。
    Be careful with + n.         
    Be careful ( that ) + 句子
    Be careful that you don’t fall.
27. think of 想到；考虑
  think about  考虑
think of an example  想到（举）一个例子
28.  be connected to  被连接到…
    What are they connected to?
29.  power station    发电站
30. look like  看上去像。。。
  What … look like?  看起来怎样？
  What does your teacher look like?  ---- he is tall and handsome.
.31. A meter measures the amount you use.电表测出你所用的电量。
32. And you get a bill for it monthly. 每个月你都会收到电费单。
33. It’s like water, in a way.  从某种程度上说，它就像水一样。
34. Although electricity is much more dangerous than water, it is a good servant, but a dangerous one.虽然电比水危险的多，但是它是一个好的仆人，但也是危险的仆人。
35. But we can change it into different forms of energy that we can see, hear, or feel. 但是我们能把它转变成为看得见、听得到或者摸得着的能量的形式。
36. change  v.  -------    changeable  adj.
37. safe  adj. -----------    safety    n.
38. look foolish = look like a fool
39. get sb. sth. = get sth. for sb.
  buy sb. sth. = buy sth. for sb.
  give sb. sth. = give sth. to sb.
connect和join的区别
  pass sb. sth. = pass sth. to sb.
40. on April Fools’ Day  在四月愚人节
41. get a bill for …得到一张……的账单
42. look foolish = look like a fool
41. get a bill for …得到一张……的账单
42. look foolish = look like a fool
43 .vacuum  n.〔美口〕吸尘器(＝ vacuum cleaner)。
            v. .用吸尘器扫除
    . do some cacuuming    用吸尘器扫除
44. do some ironing 做一些熨烫; 熨衣服
45. switch on / off
46. encourage sb. to do sth.鼓励某人做某事
47. stop sb. from doing sth. = prevent sb. from doing sth.
  阻止某人做某事
48. decide  v. ------- decision  n. 
  decide to do th.  决定做某事
49. be polite to sb.  对。。。 有礼貌
  Please be polite to our guests.

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