英语听力文摘 English Digest 38、热带丛林法则以及不雅照片词汇

　　Rainforests rule!
by Julie Bray¹
A world like no other – perhaps this is the best way to describe the world of the rainforest. No rainforest is exactly the same – yet most rainforests are now distributed in the small land area 22.5 degrees north and 22.5 degrees south of the Equator, between the Tropic of Capricorn and the Tropic of Cancer. You can find tropical rainforests in South America and Indonesia. Other rainforests flourish further from the Equator, in Thailand and Sri Lanka.
Despite occupying a relatively² small area, rainforests have a colossal³ role to play in maintaining the world as we know it. Tropical rainforests are home to a rich, colourful variety of medicinal plants, food, birds and animals. Can you believe that a single bush in the Amazon may have more species of ants than the whole of Britain! 480 varieties of trees may be found in just one hectare of rainforest. These forests sustain around 50% of all the species on Earth, and offer a way of life to many people living in and around the forest.
Rainforests are the lungs of the planet – storing vast quantities of carbon dioxide and producing a significant amount of the world’s oxygen. Rainforests have their own perfect system for ensuring their own survival; the tall trees make a canopy⁴ of branches and leaves which protect themselves, smaller plants, and the forest animals from heavy rain, intense dry heat from the sun and strong winds.
Amazingly, the trees grow in such a way that their leaves and branches, although close together, never actually touch those of another tree. Scientists think this is a deliberate tactic⁵ to prevent the spread of any tree diseases and make life more difficult for leaf-eating insects like caterpillars⁶. To survive in the forest, animals must climb, jump, fly or glide⁷ across the gaps. The ground floor of the forest is not all tangled⁸ leaves and bushes, like in films, but is actually fairly clear. It is where leaves decompose⁹ into food for the trees and other forest life.
They are not called rainforests for nothing! Rainforests can generate 75% of their own rain. At least 80 inches of rain a year is normal – and in some areas there may be as much as 430 inches of rain annually¹⁰. This is real rain – your umbrella may protect you in a shower, but it won’t keep you dry if there is a full rainstorm. In just two hours, streams can rise ten to twenty feet. The humidity of large rainforests contributes to the formation of rainclouds that may travel to other countries in need of rain.
Worryingly, rainforests around the world are disappearing at an alarming rate, thanks to deforestation, river pollution, and soil erosion as land is being claimed for agriculture and trees are felled for wood. A few thousand years ago, tropical rainforests covered as much as 12% of the land surface on Earth, but today this has fallen to less than 5.3%.
We can only hope that the world governments work together with environmentalists and businesses to use their environmental knowledge and power to preserve the rainforests – awe-inspiring, beautiful and vital for our existence.
昨天节目的词汇复习：
题目：「不雅照片」事件引发合法议题

　　misadventure  (n.)   不幸遭遇；灾祸
After Kevin's latest misadventure behind the wheel, his parents finally decided¹¹ to take away his car.
to leak  (v.)   洩漏
The politician vowed¹² to find out which member of his staff leaked information about his upcoming divorce to the media.
star-struck  (adj.)   被明星煞到；对明星着迷
I've always idolized that famous TV chef, but when I finally saw him in person I was too star-struck to introduce myself.
unflattering  (adj.)   不悦目的；不雅观的
We all felt that Mia's new hairstyle was really unflattering, but everyone was too polite to say anything to her about it.
ease  (n.)   容易；不费力
I was impressed by the ease with which you lifted that heavy suitcase.
spiteful  (adj.)   恶意的；怀恨的
I know you're mad at me, but ripping a hole in my favorite shirt was just a spiteful thing for you to do.
censorship  (n.)   审查（制度）
Because there's strict censorship in that country, newspapers and magazines have to be very careful about printing anything that's critical of the government.
to spread like wildfire   迅速散布开来
Just a few years ago, no one knew what an iPod was, but now they've spread like wildfire.
a glut¹³ of   过多的
That basketball team has a glut of players who can shoot three-pointers－it's too bad they don't have anyone who can play defense¹⁴.
slippery slope   滑坡效应
Letting your son skip school for the day might be a slippery slope－eventually, he might think of all sorts of other reasons why you should let him stay home.

1 bray   

n.驴叫声, 喇叭声；v.驴叫

参考例句：

• She cut him off with a wild bray of laughter.她用刺耳的狂笑打断了他的讲话。
• The donkey brayed and tried to bolt.这头驴嘶叫着试图脱缰而逃。

2 relatively   

adv.比较...地，相对地

参考例句：

• The rabbit is a relatively recent introduction in Australia.兔子是相对较新引入澳大利亚的物种。
• The operation was relatively painless.手术相对来说不痛。

3 colossal   

adj.异常的，庞大的

参考例句：

• There has been a colossal waste of public money.一直存在巨大的公款浪费。
• Some of the tall buildings in that city are colossal.那座城市里的一些高层建筑很庞大。

4 canopy   

n.天篷，遮篷

参考例句：

• The trees formed a leafy canopy above their heads.树木在他们头顶上空形成了一个枝叶茂盛的遮篷。
• They lay down under a canopy of stars.他们躺在繁星点点的天幕下。

5 tactic   

n.战略，策略；adj.战术的，有策略的

参考例句：

• Reducing prices is a common sales tactic.降价是常用的销售策略。
• She had often used the tactic of threatening to resign.她惯用以辞职相威胁的手法。

6 caterpillars   

n.毛虫( caterpillar的名词复数 )；履带

参考例句：

• Caterpillars eat the young leaves of this plant. 毛毛虫吃这种植物的嫩叶。
• Caterpillars change into butterflies or moths. 毛虫能变成蝴蝶或蛾子。 来自辞典例句

7 glide   

n./v.溜，滑行；(时间)消逝

参考例句：

• We stood in silence watching the snake glide effortlessly.我们噤若寒蝉地站着，眼看那条蛇逍遥自在地游来游去。
• So graceful was the ballerina that she just seemed to glide.那芭蕾舞女演员翩跹起舞，宛如滑翔。

8 tangled   

adj. 纠缠的，紊乱的 动词tangle的过去式和过去分词

参考例句：

• Your hair's so tangled that I can't comb it. 你的头发太乱了，我梳不动。
• A movement caught his eye in the tangled undergrowth. 乱灌木丛里的晃动引起了他的注意。

9 decompose   

vi.分解；vt.（使）腐败，（使）腐烂

参考例句：

• The eggs began to decompose after a day in the sun.鸡蛋在太阳下放了一天后开始变坏。
• Most animals decompose very quickly after death.大多数动物死后很快腐烂。

10 annually   

adv.一年一次，每年

参考例句：

• Many migratory birds visit this lake annually.许多候鸟每年到这个湖上作短期逗留。
• They celebrate their wedding anniversary annually.他们每年庆祝一番结婚纪念日。

11 decided   

adj.决定了的，坚决的；明显的，明确的

参考例句：

• This gave them a decided advantage over their opponents.这使他们比对手具有明显的优势。
• There is a decided difference between British and Chinese way of greeting.英国人和中国人打招呼的方式有很明显的区别。

12 vowed   

起誓，发誓（vow的过去式与过去分词形式）

参考例句：

• He vowed quite solemnly that he would carry out his promise. 他非常庄严地发誓要实现他的诺言。
• I vowed to do more of the cooking myself. 我发誓自己要多动手做饭。

13 glut   

n.存货过多，供过于求；v.狼吞虎咽

参考例句：

• The glut of coffee led to a sharp drop in prices.咖啡供过于求道致价格急剧下跌。
• There's a glut of agricultural products in Western Europe.西欧的农产品供过于求。

14 defense   

n.防御，保卫；[pl.]防务工事；辩护，答辩

参考例句：

• The accused has the right to defense.被告人有权获得辩护。
• The war has impacted the area with military and defense workers.战争使那个地区挤满了军队和防御工程人员。