内容正文:
Unit 3 The environment
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课时 1 词汇
目 录
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课时精讲
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课时精讲
1.concern:n/v.担心;忧虑 (= worry); v.影响,涉及
运 用:Our main concern is for the children's safety.我们主要担心的是孩子们的安全。
What concerns me is where my dog is.让我担心的是我的狗在哪里。
This does not concern you. Please go away.这和你无关,请走开。
同根词:concerned:adj. 担心的;忧虑的 =worried
固定短语1: show concern for/about sb.
固定短语2: be concerned for/about sb.
运 用:You needn't show concern for your children's safety.
=You needn't be concerned for your children's safety.你没必要担心小孩的安全。
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(1)Mr Li shows a great deal of _________ (concern) for us.
(2)He is really ___________ (concern) about his grades.
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concern
concerned
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2.lifeless:adj.无生命的;无生物生长的;枯燥的,单调的
运 用:There may be all lifeless planets except the Earth in the universe.
除地球外,或许宇宙中都是些无生命存在的行星。
His performance was so lifeless that no one liked it.他的表演太枯燥了,以至于没有人喜欢。
近义词:dead:adj. 死亡的
同根词:life n. 生命;生活;lively adj. 有活力的;alive adj. 活着的;live v.活着;adj.现场的; living adj. 活着的
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3.result:n. 结果
运 用:The result of the match was 2-1 to Chicago.比赛结果是芝加哥队以二比一获胜。
精 讲:此外,result可作动词。
固定短语1:result in=lead to=cause 造成,导致
固定短语2:as a result of三0个0点= because of= due to= owing to 由于……
固定短语3:result from 由……造成
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固定短语4:as a result 结果,因此
运 用:Research has shown that having a preference for junk food can result in obesity.
研究表明,偏爱垃圾食品会导致肥胖。
He was late as a result of the snow. 由于大雪他迟到了。
Many hair problems result from what you eat.很多头发问题是由你吃的东西引起的。
He defeated all competitors and won the scholarship as a result.
他击败了所有的竞争者,最终赢得了奖学金。
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(1)由于这场大雨,他得了重感冒。
________________________________________________________________
(2)他又犯了个大错,结果丢了工作。
________________________________________________________________
(3)糟糕的天气导致了交通堵塞。
________________________________________________________________
(4)很多环境问题是由不合理的人类活动导致的。
________________________________________________________________
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He got a bad cold as a result of the heavy rain.
He made a mistake again.As a result, he lost his job.
The bad weather resulted in traffic jam.
Many environmental problems result from improper human activities.
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4.increase:v.(使)增长;增多;增加
运 用:Smoking increases chances of getting cancer. 吸烟增加了得癌症的可能性。
I'd like to increase my vocabulary.我想增加我的词汇量。
精 讲:此外,increase还可作名词,请注意其音标 与动词形式的音标/ɪn'kriːs/不同。
固定短语1:increase from A to B 从A增长到B
运 用:The population has increased from 1.2 million to 1.8 million.
人口已从120万增加到了180万。
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固定短语2:an increase in…在……的增长
运 用:There is a significant increase in sales this month. 这个月的销售额有显著的增长。
固定短语3:on the increase 处于增长中
运 用:With China's rapid development and prosperity, the demand for Mandarin lessons is on the increase. 随着中国的快速发展和繁荣,学习汉语的需求也在增加。
辨 析:increase to与increase by
increase to表示增加到多少;increase by表示增长了。
运 用:The population has increased to 1.8 million. 人口已增加到了180万。
The price of the rice has increased by 20%. 大米的价格已经增长了20%。
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5.destroy:v.摧毁;毁灭
运 用:There was a fire in the art gallery and several famous paintings were destroyed.
美术馆失了场火,几张著名的油画被烧毁了。
The flood destroyed the city completely. 洪水完全毁掉了这座城市。
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辨 析:destroy, damage, harm
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damage 主要指对价值和功能的破坏,多用于无生命的东西,一般还可修复。如:
Their houses were damaged by the fire. 他们的房屋被火烧毁了。
destroy 指通过某种有力的或粗暴的手段使之毁灭或无用,一般不能或很难修复。如:
The earthquake destroyed the whole city. 地震毁了整座城市。
harm 主要用于有生命的东西,偶尔也用于无生命的事物,常指伤及一个人或其健康、权利、事业等。如:
Drinking seriously harmed his health. 喝酒严重损害了他的健康。
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6.nature:n.自然界;大自然
运 用:We like camping. It makes us feel closer to nature.
我们喜欢野营。它让我们觉得更靠近大自然。
Our purpose is not to conquer nature. 我们的目的不是要征服自然。
固定短语:in nature 在大自然中
同根词:natural:adj. 自然的;天然的
运 用:We must protect the natural environment. 我们必须保护自然环境。
The natural scenery is beautiful here. 这里的自然景色很美。
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(1)Many poets write about the beauty of ________ (nature).
(2)Earthquake is a kind of _________ (nature) disaster.
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nature
natural
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7.proper:adj.正确的;恰当的
运 用:I didn't think it was proper to ask for the lady's telephone number so soon.
我认为这么快就要那位女士的电话号码不太合适。
同根词:properly:adv. 正确地;合适地
运 用:She can read German but has trouble speaking it properly.
她有德语阅读能力,但是口语还讲得不准确。
反义词:improper 不合适的,不恰当的=inappropriate
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8.friendly:adj.友好的;无害的
固定短语:be friendly to sb. = be pleasant to sb. 与某人亲善
运 用:This kind of material is environmentally friendly. 这种材料环保。
同根词:friendliness:n. 友好
特别注意:friendly的比较级和最高级分别是friendlier、the friendliest。
反义词:unfriendly 不友好的
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9.recycle:v.回收利用
运 用:If we learn to recycle materials, our natural resources will last longer.
如果我们学会了循环利用材料,我们的自然资源将持续(使用)更久。
For many of the products we used, we are able to recycle.
我们有很多用过的东西是可回收的。
同根词:recycled adj. 可回收利用的,recycled material 可循环使用的材料
【词根法拓展】re表示“重复;又”的前缀,常见的有:
reuse 重复使用; restart 重新出发;rewrite 重写;rebuild 重建
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10.solution:n. 解决办法;处理手段
运 用:I do not have a simple solution to the problem. 我没有解决这个问题的简单方法。
Has anyone found a solution to question 7? 谁找到了问题7的解决方法?
注 意:与answer、key、clue(线索)类似的是,solution常跟介词to连用。
同根词:solve v. 解决=work out=deal with
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(1)Could you please help me _______ (solve) the problem?
(2)Your ___________ (solution) are quite amazing.
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solve
solutions
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11.purpose: n. 目的; 意义
运 用:Our campaign's main purpose is to raise money. 我们这次活动的主要目的就是募款。
固定短语1:on purpose 故意地
运 用:Maybe he did this on purpose. 也许他是故意这么做的。
固定短语2:with the purpose of三0个0点目的是;为了……
运 用:He came to Beijing with the purpose of visiting his younger brother.
他来北京是为了探望他的弟弟。
固定短语3:a sense of purpose 目标感;意义感
运 用:Voluntary work gives her life a sense of purpose. 志愿工作使她的生活有了意义。
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12.mountains of :许多,后接可数名词复数或不可数名词
常见表示数量的短语如下:
(1)既可修饰可数名词复数也可修饰不可数名词:
quantities of, a quantity of, mountains of, plenty of, lots of
(2)只能修饰不可数名词:
a great deal of, a large amount of, a wealth of, much
(3)只能修饰可数名词复数:
a number of, many
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Ⅰ.从A、B、C三个选项中选出可以替换画线部分的最佳选项
( )1.I really don't know the answer. I'm just guessing.
A.trying to look smart
B.trying to get up
C.trying to get an answer
( )2.He was late as a result of the heavy snow.
A.because of B.so that C.except for
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C
A
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( )3.The flood destroyed the city last year.
A.did no harm to
B.caused much damage to
C.did something wrong to
( )4.The room is full of people.
A.is lack of B.is filled with C.is part of
( )5.I'm very busy. I have mountains of work to do.
A.a large number of B.a small amount of C.a large amount of
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B
C
C
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( )6.She arrived early in order to get a good seat.
A.in case of B.so that C.so as to
( )7.Your age shouldn't make any difference to whether you get the job or not.
A.keep in touch with B.have any effect on C.take responsibility for
( )8.The bad weather resulted in many car accidents.
A.led to B.happened to C.kept to
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C
B
A
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( )9.We have to take action to stop people from polluting the air.
A.make a decision B.take a chance C.do something
( )10.This planet is the same size as the Earth.
A.bigger than B.smaller than C.as big as
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C
C
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Ⅱ.根据句意或括号内的提示语,完成下列句子
1.In some big cities, the pollution of the ____________ (大气层) is serious.
2.The most amazing thing about ________ (大自然) is its variety.
3.He showed _________ (忧虑) that the ship might be in danger.
4.This _________ (回收利用) of waste materials is a way of reducing pollution.
5. ______________ (温度) usually decreases with height.
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atmosphere
nature
concern
recycle
Temperature
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Ⅲ.语法填空:根据短文内容及提示,完成短文填空
In today's world, not all people know noise is also 1._____ kind of pollution and is harmful to humans' health. People who work and live in noisy conditions go deaf 2.__________ (easy). For example, many of the workers 3._______ print newspapers and books go deaf. Quite a few people 4.__________ (live) near airports also have hearing loss. Recently, it 5._______________ (report) that many teenagers in America can hear no 6.____________ (well) than 65-year-old people do, because these young people
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a
easily
who
living
is reported
better
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always listen to loud pop music. Making a loud noise 7.______ public is also a kind of pollution. It not only disturbs others but also 8.________ (do) great harm to people's hearing. Cars and machines also produce too much 9._________ (noisy). Such pollution makes people feel uncomfortable and unpleasant, and it can even cause 10.________ (they) to become deaf.
Nowadays, many countries are trying to solve all sorts of environmental problems, including noise pollution.
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in
does
noise
them
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本节内容到此结束!
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