英语专四 新闻听力 news 4-10-3

 新闻

Questions 25 to 27 are based on the following news.

The yellow-spotted bell frog is back from the dead. (25) It was thought to have become extinct but has now been seen for the first time since 1973.

Dr. David Hunter, a threatened species officer at the New South Wales Environment Department, was there when about 100 frogs were found in a remote stream, the location of which is being kept secret.

The yellow-spotted bell frog's disappearance¹ is likely to have been caused by a range of factors, including disease, a loss of habitat and pollution.

(26) Experts believe that exposure to a deadly fungus² that arrived in Australia from Africa in the 1970s decimated frog numbers.

A collection of tadpoles³ has been established at Taronga Zoo in Sydney as part of a plan to re-populate rivers and streams.

The zoo’s Michael McFadden says the breeding program should help this vulnerable species survive.

Scientists have warned there are more than 40 threatened frog species fighting for survival in Australia.

(27) The International Union for Conservation of Nature has said that one-third of the world’s 6,000 species of amphibians⁴ are under threat of extinction⁶.

The New South Wales Environment Minister, Frank Sartor, said the discovery of yellow-spotted bell frogs was the amphibian⁵ equivalent of discovering the Tasmanian Tiger，a carnivorous Australian marsupial⁷ that died out in the 1930s.

 

题目

 

Questions 25 to 27 are based on the following news. At the end of the news item , you will be given 15 seconds to answer the questions.

Now, listen to the news.

25. The yellow-spotted bell frog was thought to have become extinct since ____.

A. 1930 B. 1937   C. 1970 D. 1973

26. Experts believe that____ exposure to a deadly that arrived in Australia from Africa decimated frog numbers.

A. fungus B. snake  C. bird D. disease

27. How many species of amphibians are under threat of extinction in the world?

A. About 40.          B. About 1.500.

C. About 2,000.      D. About 6，000.

 

答案解析

News 10

 

25. D 细节题。 新闻说黄点响铃蛙于1973年绝迹，因此选D。

26. A 细节题。 科学家们认为一种从非洲引进到澳大利亚的剧毒菌类是造成黄点响铃蛙数量骤减的原因，因此选A。

27. C推断题。国际自然保护联盟说世界上共有6000种两栖类，其中的1/3瀕临灭 绝，因此大约有2000种两栖类濒临灭绝，因此选C。

1 disappearance   

n.消失，消散，失踪

参考例句：

• He was hard put to it to explain her disappearance.他难以说明她为什么不见了。
• Her disappearance gave rise to the wildest rumours.她失踪一事引起了各种流言蜚语。

2 fungus   

n.真菌，真菌类植物

参考例句：

• Mushrooms are a type of fungus.蘑菇是一种真菌。
• This fungus can just be detected by the unaided eye.这种真菌只用肉眼就能检查出。

3 tadpoles   

n.蝌蚪( tadpole的名词复数 )

参考例句：

• The pond teemed with tadpoles. 池子里有很多蝌蚪。 来自《简明英汉词典》
• Both fish and tadpoles have gills. 鱼和蝌蚪都有鳃。 来自《现代汉英综合大词典》

4 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。

5 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。

6 extinction   

n.熄灭，消亡，消灭，灭绝，绝种

参考例句：

• The plant is now in danger of extinction.这种植物现在有绝种的危险。
• The island's way of life is doomed to extinction.这个岛上的生活方式注定要消失。

7 marsupial   

adj.有袋的，袋状的

参考例句：

• Koala is an arboreal Australian marsupial.考拉是一种澳大利亚树栖有袋动物。
• The marsupial has been in decline for decades due to urban sprawl from car accidentsdog attacks.这种有袋动物其数量在过去几十年间逐渐减少,主要原因是城市的扩张、车祸和狗的袭击。