-
--
中国首家承诺学习效果的在线教育公司
初三英语上册（人教新目标）
Unit 13 We’re
trying to save the earth!
知识点总结
一、重点词汇
词义辨析：
cost/spend/take/pay
都与
“
花费
”
有关
，但用法上有区别。
cost
sth. costs (sb.) +money
spend
1. spend+
time/money on sth.
2. spend
+time/money (in) doing sth.
take
pay
It takes (sb.) time +to do
sth.
pay (sb.)+money for
sth.
因此，
“
他们花两年建造这座桥
”
可
以表示为：
They
spend two years on this bridge.
=They spent two years (in) building
this bridge.
=It took them
two years to build this bridge.
“
我花了
2000
块钱买
这台电脑
”
可以表示为：
I spent 2000 Yuan on the
new computer.
=I spent
2000 Yuan (in) buying the new computer.
=The new computer cost me
2000 Yuan.
=I paid 2000
Yuan for the new computer.
词义辨析：
take part in/join/join
in/attend
这些动词或词组均含
“
参加，加入
”
之意。
take
part in
join
join in
attend
常指参加大型比赛或活动。
特指加入党派、团体等；
join sb. in
(doing) sth.
指“和某人一起做某事”。
多指参加小规模的活动，如：球赛、游戏等。
侧重参加或出席会议、学术活动、音乐会、上课等等，着重强调成为其中的听众或观众。
A lot of college students took
part in the movement last year.
去年很多大学生参加了那个运动。
His brother joined the army two years
ago.
--
中国首家承诺学习效果的在线教育公司
两年前他哥哥参军。
May I join in your discussion?
我可以参加你们的讨论吗？
Hundreds of students attended the
lecture given by the famous professor.
数百人参加了这位著名教授的讲座。
词义辨析：
turn
词组
turn on
turn
off
turn up
turn down
turn
out
turn around
turn back
turn
to
turn into
turn over
打开
关上
把??调高
把??调低
原来是，
结果是
turn out (to be) +adj./n.
转身
返回
翻到??；求助于??
将??转变为??；译成??
翻转
The experiment turned out to be a
success.
实验是成功的。
I
turned around to see who was calling me.
我转过身看谁在喊我。
Please turn to Page 10.
请翻到第十页。
I have turned into a woman
with strong will.
我已经变成了意志坚定的人。
She turned over and fell to sleep.
她翻了翻身，睡着了。
afford to do sth.
：买得起
……
，足够支付
……
We
can’t afford to pay such a
high price.
我们付不起这个价钱。
--
中国首家承诺学习效果的在线教育公司
be harmful to
：对
……
有害
Staying up
often is harmful to your health.
经常熬夜对你的健康有害。
拓展：
1. harm
：
n.
害处
2. do harm t
o
：对
……
有害
at the top of
：在
……
顶端
There was not enough oxygen at the top
of the mountain.
山顶上缺氧。
He shouted at the top of his voice in
order to be heard.
他尽力大声叫喊，以便别人能听见。
拓展：反义词
at the
bottom of
：在
……
的底端<
/p>
take
action
：采取行动
The police had
to take action to deal with the riots.
警方不得不采取行动来对付骚乱。
throw
away
：扔掉；错过（机会等）
Many people
throw away cigarette ends carelessly.
许多人随手乱扔香烟头。
Don’t throw away this
opportunity.
别错失这次机会。
拓展：
1. throw
at
：扔向
……
2. throw
about
：到处扔
put sth. to good
use
：好好利用某物
If you focus
your mind on the task, your talents can be put to
good use.
如果你集中精神在工作上，你的才能就能好好利用起来。
pull…down
：拆毁
They are going to pull down the old
building and replace it with a new shopping mall.
他们打算把这幢旧建筑拆掉，并代之以新的商场。
-
-
-
-
-
-
-
-
-
上一篇：商南县志
下一篇：分词作状语练习题解析