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选修6 Unit 4 Global Warming

I. 单元基础知识

1. 核心单词

(1) _________ n．趋势；倾向；走向 (2) _________ n．种类；范围 (3) _________ adj．平均的

(4) _________ vi．看一下；扫视；浏览 n．一瞥 (5) _________ adj．随便的；漫不经心的；偶然的 (6) _________ n．现象(pl.__________) (7) _________ adj．分布广的；普遍的 (8) circumstance n． (9) quantity n． (10) refresh vt． (11) statement n． (12) existence n．

(13) environmental adj． (14) subscribe vi． (15) measurement n． 2. 高频短语

(1) result in __________ (2) on behalf of ________ (3) come about _________ (4) so long as _________ (5) go up __________

(6) ___________ 大体上；基本上 (7) ___________ 反对…… (8) ___________ 即使 (9) ___________ 继续

(10) __________ 忍受；容忍 3. 重点句型

(1) ____________ the earth is becoming warmer (see Graph 1) and that it is human activity that has caused this global warming rather than a random but natural phenomenon.

毫无疑问，地球正变得更加暖和(见图表1)，而且全球转暖是人为的，而不是随意的自然现象。

(2) ________ we start reducing the amount of carbon dioxide and other greenhouse gases，the climate is going to keep on warming for decades or centuries.

即使我们开始减少二氧化碳和其他温室气体的含量，在(未来)几十年或几个世纪内，气候仍会持续转暖。

(3) It is OK to leave an electrical appliance on__________ you are using it—if not，turn it off!

只要你在使用电器设备，你便可以把它开着。如果不用就把它关掉！

(4) ___________________________ from new materials，so，if you can，buy things made from recycled materials.

将新材料做成物品需要许多能量，因而，如果有可能请购买用回收材料制成的物品。

(5) ________________________, the earth_______ about thirty three degrees Celsius cooler than it is.

如果没有温室效应，地球会比现在冷大约33摄氏度。

II. 考点精析及演练

1. quantity n.数量；量

[同义表达] quantity, amount, number [短语集锦] in quantity大量 (large)quantities of＋名词＋复数谓语动词 许多…… a(large) quantity of＋复数名词＋复数谓语动词/＋不可数名词＋单数谓语动词 大量…… * an amount of数量,总量 a (great, large) amount of 大量 amounts of许多 Amount相关表达修饰名词用作主语，其谓语的数取决于 amount 的数。 [用法检测] ①A large quantity of beer________ (sell) yesterday.

②Large quantities of food________ (waste) because of the way it looks. ③There are large________ (大量的) rain in this area. 2. oppose vt.反对；反抗；与(某人)较量 [短语集锦]

oppose A against/to B 使A与B相对抗 oppose doing sth.反对做某事 be opposed to反对 as opposed to与……相对照；而非 [用法检测] (1)填空

①His daughter is very athletic as______ (oppose) to his son. ②She____ very much ______(oppose) to your marrying her. ③He opposed______ (build) a new hall.

(2) The government postponed the new proposal because a lot of people were opposed to it.

__________________________________________________ (用with复合结构改写)

3. state vt.陈述；说明；n.状态；情况 statement n.状态，情况 [常见用法]

in a...state/in a state of...处于……状态 make a statement陈述；发表声明 It is stated that...据称…… as (is) stated above如上所述（写作常用语） 注：要注意几个形近词的准确含义，不能混淆：state陈述，说明，状态；status地位，重要身份；statue雕像，塑像；salute致敬，敬礼 [用法检测] (1) before.

_________________________________________________(用statement改写句子) (2)

It is stated that Philip was an honest man. The witness stated that he had not seen the woman

____________________________________(用as引导的非限制性定语从句改写) 4. advocate vt.拥护；提倡；主张；n.支持者；拥护者；提倡者 [常见用法]

It is advocated that...主张，提倡…… advocate doing...主张做…… an advocate of/for支持……的人 注：advocate后不跟不定式，跟从句时，从句中用虚拟语气(should) do。 [用法检测] (1)

They advocate reducing military spending.

__________________________________________________ (用it作形式主语改