英语听力：自然百科 蛙类拯救阿根廷？

 In Argentina, the small city of San Luis is adopting the frog as its provincial¹ hero. Frogs have been touted² by some as the antidote³ to a dengue fever outbreak that's gripped Argentina. There have been over 20,000 cases recorded this year, including at least five deaths. Local Councilor Daniel Sosa says one frog can eat about 15,000 insects including mosquitoes in a single season. Mosquitoes are the carriers of the disease. He wants people to adopt the frog and forget the wildly used chemical controls. 

 

What we want is a biological control, so the aero-toxins do not kill us. In the end, we will not be killed by the dengue, but we will actually be killed the aero-toxins. We will be killed by aerosols⁴, by the pesticides⁵. So, we have to begin to look for biological mechanisms⁶ and the frog is one of them.

 

Sosa is giving them away, encouraging locals to put them in their gardens. While not everyone has been jumping at the prospect⁷ of taking one home, local residents have been receiving them with amused curiosity. 

 

The truth is that I do not want to take one to my house. I am impressed. But, well, if it is a way to prevent it, what else can I do?

 

Everything serves and its cost is zero, because the repellents are really expensive and not everyone has the money to buy them. 

 

According to a local newspaper, a farmer in a nearby village had the original idea. He was convinced the repopulation of the amphibians⁹ in the heavily forested area would provide a clean answer to the long-legged mosquito. He says that in contrast to the toxic¹⁰ methods wildly used to combat the mosquito, a frog is a friend to the health of people.

 

The frog is a form of defense¹¹. That's the first thing and secondly¹² in my opinion, if I may say, all this chemical stuff and all that is a waste of place, because you know why, because when the insect gets the scent¹³, it goes away from where there is the defense, and the mosquito is no more there. Only when he is a top, or is really caught with the spread, but other than that it doesn't provide anything. He's gone and keeps going. Do you get me? And everything I believe is all this chemical combination does nothing good for the health of the people as it contaminates the air. 

 

A newer strain of the disease appears resistant¹⁴ to the chemical controls, and the amphibian⁸ population continues to decline. Despite the region having large numbers of frogs in the past, today there are very few as a consequence of changes in the natural habitat and years of fumigation¹⁵. Some say the increased air travel as well as Argentina's recent agricultural expansions have played a role in the epidemic¹⁶. Land clearing for food production has disrupted large parts of the country's ecological¹⁷ balance. Despite the enthusiasm for biological controls, there are some words of caution.

 

In accordance with the autonomous¹⁸ population here, it must not be misunderstood that we do not try to introduce species that are not natural to our region, because we have to take care with a representative number in each region, and we have to study them previously¹⁹, because it just might be that they occupy the nests of the native species and with that we would produce a real ecological crisis. 

 

Whether frog heroes or pawns²⁰ in a misguided plan, the amphibian residents of San Luis have been truly thrown into the spotlight²¹.

1 provincial   

adj.省的，地方的；n．外省人，乡下人

参考例句：

• City dwellers think country folk have provincial attitudes.城里人以为乡下人思想迂腐。
• Two leading cadres came down from the provincial capital yesterday.昨天从省里下来了两位领导干部。

2 touted   

v.兜售( tout的过去式和过去分词 )；招揽；侦查；探听赛马情报

参考例句：

• She's being touted as the next leader of the party. 她被吹捧为该党的下一任领导人。
• People said that he touted for his mother and sister. 据说，他给母亲和姐姐拉生意。 来自辞典例句

3 antidote   

n.解毒药，解毒剂

参考例句：

• There is no known antidote for this poison.这种毒药没有解药。
• Chinese physicians used it as an antidote for snake poison.中医师用它来解蛇毒。

4 aerosols   

n.气溶胶( aerosol的名词复数 )；喷雾剂；（气体中的）浮粒；喷雾器

参考例句：

• Aerosols are present throughout the atmosphere. 气溶胶存在于整个大气层。 来自辞典例句
• Deodorants are available as aerosols or roll-ons. 除臭剂有喷雾装或滚抹装。 来自辞典例句

5 pesticides   

n.杀虫剂( pesticide的名词复数 )；除害药物

参考例句：

• vegetables grown without the use of pesticides 未用杀虫剂种植的蔬菜
• There is a lot of concern over the amount of herbicides and pesticides used in farming. 人们对农业上灭草剂和杀虫剂的用量非常担忧。 来自《简明英汉词典》

6 mechanisms   

n.机械( mechanism的名词复数 )；机械装置；[生物学] 机制；机械作用

参考例句：

• The research will provide direct insight into molecular mechanisms. 这项研究将使人能够直接地了解分子的机理。 来自《简明英汉词典》
• He explained how the two mechanisms worked. 他解释这两台机械装置是如何工作的。 来自《简明英汉词典》

7 prospect   

n.前景，前途；景色，视野

参考例句：

• This state of things holds out a cheerful prospect.事态呈现出可喜的前景。
• The prospect became more evident.前景变得更加明朗了。

8 amphibian   

n.两栖动物；水陆两用飞机和车辆

参考例句：

• The frog is an amphibian,which means it can live on land and in water.青蛙属于两栖动物，也就是说它既能生活在陆地上也能生活在水里。
• Amphibian is an important specie in ecosystem and has profound meaning in the ecotoxicology evaluation.两栖类是生态系统中的重要物种，并且对环境毒理评价有着深远意义。

9 amphibians   

两栖动物( amphibian的名词复数 )； 水陆两用车； 水旱两生植物； 水陆两用飞行器

参考例句：

• The skin of amphibians is permeable to water. 两栖动物的皮肤是透水的。
• Two amphibians ferry them out over the sands. 两辆水陆两用车把他们渡过沙滩。

10 toxic   

adj.有毒的，因中毒引起的

参考例句：

• The factory had accidentally released a quantity of toxic waste into the sea.这家工厂意外泄漏大量有毒废物到海中。
• There is a risk that toxic chemicals might be blasted into the atmosphere.爆炸后有毒化学物质可能会进入大气层。

11 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。

12 secondly   

adv.第二，其次

参考例句：

• Secondly,use your own head and present your point of view.第二，动脑筋提出自己的见解。
• Secondly it is necessary to define the applied load.其次，需要确定所作用的载荷。

13 scent   

n.气味，香味，香水，线索，嗅觉；v.嗅，发觉

参考例句：

• The air was filled with the scent of lilac.空气中弥漫着丁香花的芬芳。
• The flowers give off a heady scent at night.这些花晚上散发出醉人的芳香。

14 resistant   

adj.(to)抵抗的，有抵抗力的

参考例句：

• Many pests are resistant to the insecticide.许多害虫对这种杀虫剂有抵抗力。
• They imposed their government by force on the resistant population.他们以武力把自己的统治强加在持反抗态度的人民头上。

15 fumigation   

n.烟熏，熏蒸；忿恨

参考例句：

• We think that the fumigation can be done in a large, round metal container. 我们觉得熏蒸过程可以在一个大圆金属容器内进行。 来自辞典例句
• In the northern states fumigation is needed only after insect outbreaks occur. 在北部各州，只在虫害发生后才进行熏蒸。 来自辞典例句

16 epidemic   

n.流行病；盛行；adj.流行性的，流传极广的

参考例句：

• That kind of epidemic disease has long been stamped out.那种传染病早已绝迹。
• The authorities tried to localise the epidemic.当局试图把流行病限制在局部范围。

17 ecological   

adj.生态的，生态学的

参考例句：

• The region has been declared an ecological disaster zone.这个地区已经宣布为生态灾难区。
• Each animal has its ecological niche.每种动物都有自己的生态位.

18 autonomous   

adj.自治的；独立的

参考例句：

• They proudly declared themselves part of a new autonomous province.他们自豪地宣布成为新自治省的一部分。
• This is a matter that comes within the jurisdiction of the autonomous region.这件事是属于自治区权限以内的事务。

19 previously   

adv.以前，先前（地）

参考例句：

• The bicycle tyre blew out at a previously damaged point.自行车胎在以前损坏过的地方又爆开了。
• Let me digress for a moment and explain what had happened previously.让我岔开一会儿，解释原先发生了什么。

20 pawns   

n.（国际象棋中的）兵( pawn的名词复数 )；卒；被人利用的人；小卒v.典当，抵押( pawn的第三人称单数 )；以（某事物）担保

参考例句：

• The hostages are being used as political pawns. 人质正被用作政治卒子。
• The allies would fear that they were pawns in a superpower condominium. 这个联盟担心他们会成为超级大国共管的牺牲品。 来自《简明英汉词典》

21 spotlight   

n.公众注意的中心，聚光灯，探照灯，视听，注意，醒目

参考例句：

• This week the spotlight is on the world of fashion.本周引人瞩目的是时装界。
• The spotlight followed her round the stage.聚光灯的光圈随着她在舞台上转。