Unit 4 Global warming

Unit 4 Global warming

unit 4 global warming

i. phrases                        

1.   global warming

全球气候变暖

2.   a supply of /supplies of

大量的

3.   depend on

依靠

4.   human activity

人类活动

5.   a natural phenomenon

自然现象

6.   be trapped in...

被困在……

7.   a quantity of/quantities of + n.

大量的

8.           result in

result from

导致..

原因是..

9.        as a result = in consequence

as a result of =in consequence of

因此

of由于…的缘故

10.  build up

逐渐建立

11.  keep on

保持

12.       make a difference

make no difference

有影响；有关系

对……没有影响；不重要

13.  put up with…

忍受

14.  as/so long as

只要

15.  and so on

等等

16.  glance at…

很快地看……一眼..

17.  on the whole

大体上

18.  compare…to.../compare….with

与…相比

19.  come about

come across

 come back

 come down

 come in

 come out

 come up

 come up with

come to

发生(不及物)

偶遇;穿过

回来

降下;减低

进来;到达

出来;出版

上来;被提出讨论;发芽

追上;赶上

结果达到;苏醒

20.  heat up

受热

21.  up to

多达; 比得上

22.  in the years ahead

今后一些年里

23.  carry out

执行

24.  decrease by

decrease (from …) to

下降了……

（从……）下降到

25.  greenhouse effect

温室效应

ii. sentences

1. that probably doesn’t sound very much to you or to me but it is a rapid increase compared to most natural changes.

这对你我来说很可能是无所谓的，但是跟多数自然变化相比较而言，这却是一种快速的增长。

2. there is no doubt that the earth is becoming warmer but there is fierce debate over whether it is human activity that has caused this global warming or whether it is just a natural phenomenon.

毋庸质疑的是地球正在变暖,但关于它变暖的原因是由于人类活动所致还是一种自然现象还存在激烈的争论。

3. without the “greenhouse effect”, the earth would be about thirty-three degrees celsius cooler than it is.

如果没有这种 “温室效应”，地球的温度将比现在的温度还要低33摄氏度左右。

4. some people think future global warming would cause the sea level to rise by several meters; others predict severe storms, droughts, famines, the spread of diseases, and the destruction of species.

      有人认为全球变暖会导致海平面上升好几米;也有人预言会出现严重的风暴、干旱、饥荒、疫病和物种的灭绝.