Question

【題目】 China says 16 endangered finless porpoises（江豚）have been found dead since the beginning of the year and experts blame water pollution and climate change for pushing the species toward extinction．

The freshwater porpoise-popularly known in Chinese as the"river pig"-mainly lives in China's Yangtze River and two lakes linked to the river．

Authorities（官方）have discovered 10dead porpoises in Dongting Llake in the central province of Hunan since March, according to a statement by the government of Yueyang City, which is located on the lake's shore． Another six dead porpoises have been found in Poyang Lake in the eastern province of Jiangxi since the beginning of the year． Experts warn that the species will be extinct within a matter of years．

Wang Kexiong, a researcher at China's Institute of Hydrobiology, said water pollution, shipping and sand dredging（挖掘）were all possible contributing factors to the recent deaths．

Many rivers in China have become heavily polluted with poisonous waste from factories and farms-pollution blamed on more than three decades of rapid economic growth and slow enforcement（實(shí)施）of environmental protection laws．

The report said climate change also could be to blame as the dry weather has caused water levels to drop and makes it more difficult for the porpoises to find food． Tests have shown that some of the porpoises are believed to have died of starvation（饑餓）．

In 2006, China was estimated（估計(jì)）to have only 1,200 finless porpoises left． That same year, the Baiji-a freshwater dolphin also native to the Yangtze River-was declared extinct． Earlier this year, a survey found just 65"river pigs"in Dongting Lake and 300-400 in Poyang Lake．

Following the recent deaths, Yueyang City promised to investigate and increase protection of the remaining porpoises in Donting Lake．

【1】How many river pigs are estimated to live in Dongting Lake？

A.49

B.55

C.59

D.65

【2】The following factors of river pigs' deaths are mentioned EXCEPT__________．

A.water pollution

B.climate change

C.food shortage

D.illegal fishing

【3】We can learn from the text that__________．

A.river pigs' deaths can be reduced if measures are taken in advance

B.river pigs' deaths are completely caused by human beings' activities

C.climate change is likely to stop economic growth in China

D.economic growth always has a negative effect on the environment

【4】The number of river pigs is listed in Paragraph 7 to________．

A.show they have become extinct

B.call for more effective protection

C.show they are on the edge of extinction

D.show the importance of raising them in labs

Answer 1

【答案】

【1】B

【2】D

【3】A

【4】C

【解析】

文章大意：本文是一篇新聞報(bào)道。文章介紹了今年以來已經(jīng)發(fā)現(xiàn)有16只長江江豚死亡。長江江豚是瀕臨滅絕物種，它們生活在長江流域，近年來由于江水污染，和氣候變化等原因數(shù)量逐漸減少。

【1】細(xì)節(jié)理解題。根據(jù)第7大段“Earlier this year, a survey found just 65"river pigs"in Dongting Lake and 300-400 in Poyang Lake．” 洞庭湖共有65個(gè)河豚；再根據(jù)第3大段“Authorities（官方）have discovered 10dead porpoises in Dongting Llake”死了10個(gè)河豚，可知，只有55個(gè)河豚。故選B。

【2】細(xì)節(jié)理解題。根據(jù)第1大段“since the beginning of the year and experts blame water pollution and climate change for pushing the species toward extinction．”有水污染和氣候變化原因；再根據(jù)第6大段“ests have shown that some of the porpoises are believed to have died of starvation（饑餓）．”食物短缺的原因�？芍�，選D。

【3】推測判斷題。根據(jù)第8大段“Following the recent deaths, Yueyang City promised to investigate and increase protection of the remaining porpoises in Donting Lake．”可知，如果采取相應(yīng)的措施保護(hù)河豚，河豚的死亡數(shù)量能減少。故A正確；根據(jù)第1大段“since the beginning of the year and experts blame water pollution and climate change for pushing the species toward extinction．”有水污染和氣候變化原因，不單單只是人為原因，故B錯(cuò)誤；根據(jù)第6大段“The report said climate change also could be to blame as the dry weather has caused water levels to drop and makes it more difficult for the porpoises to find food”氣候變化造成水位下降和河豚找食物的困難，而沒有指出是停止中國經(jīng)濟(jì)發(fā)展，故C錯(cuò)誤；根據(jù)常識(shí)可知，經(jīng)濟(jì)發(fā)展對人們生活水平提高有很大幫助，而不只是副作用，故D錯(cuò)誤。故選A。

【4】細(xì)節(jié)理解題。根據(jù)第7大段“In 2006, China was estimated（估計(jì)）to have only 1,200 finless porpoises left． That same year, the Baiji-a freshwater dolphin also native to the Yangtze River-was declared extinct．” 中國估計(jì)只有1200個(gè)河豚，可知數(shù)字說明河豚幾乎瀕臨滅絕。故選C。