China says 16 endangered finless porpoises（江豚...

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（实施）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（饥饿）．

In 2006, China was estimated（估计）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

九年级英语阅读单选中等难度题查看答案及解析

Big ocean（海洋） fish have almost been endangered since the start of business fishing in the 1950s. The scientists found that the number of large fish has dropped by 90 percent in the past fifty years. The study took ten years. The researchers（研究人员）collected records from fishing businesses and governments around the world. The magazine Nature published(发表) the findings.

The scientists say the common way called long-line fishing is especially harmful to large fish. This way includes many fishing lines that are connected to one boat. If these lines are joined together, they can reach one hundred kilometers. They hold thousands of sharp metal hooks(钩) to catch fish. Long-line fishing is especially common in the Japanese fishing industry. Records showed that Japanese boats used to catch about ten fish for every one hundred hooks. The study says long-line fishing boats now might catch one fish per hundred hooks.

The scientists say business fishing can destroy groups of fish much faster than in the past. It’s not the only worry that the number of large fish is becoming smaller and smaller. What’s worse, they are smaller in size than their ancestors（祖先）.

What is 1. to ocean fish?

九年级英语填空中等难度题查看答案及解析

Big ocean fish have almost been endangered since the start of business fishing in the

1950s. The scientists found that the number of large fish has dropped by 90 percent in the

past fifty years. The study took ten years. The researchers collected records from fishing

businesses and governments around the world. The magazine Nature published(发表)the findings.

The scientists say the common way called longline fishing is especially harmful to large fish. This way includes many fishing lines that are connected(连接) to one boat. If these lines are joined together, they can reach one hundred kilometers. They hold thousands of sharp metal hooks(钩) to catch fish. Longline fishing is especially common in the Japanese

fishing industry. Records showed that Japanese boats used to catch about ten fish for every

one hundred hooks. The study says longline fishing boats now might catch one fish per

hundred hooks.

The scientists say business fishing can destroy groups of fish much faster than in the

past. It’s not the only worry that the number of large fish is becoming smaller and smaller.

What’s worse, they are smaller in size than their ancestors(祖先).

根据短文内容完成表格，每空一词。

What is happening to ocean fish?

九年级英语其他题中等难度题查看答案及解析

—When did the Greens come to China?

—They_____ China for seven years.

A. have been in　　 B. have been to　　 C. have come to

九年级英语单选题中等难度题查看答案及解析

The Greens _____ China for seven years.

A.have come to    B.have been to

C.have come in    D.have been in

九年级英语单项填空简单题查看答案及解析

The Greens _____ China for seven years.

A.have come to　 B.have been to

C.have come in　 D.have been in

九年级英语单项填空中等难度题查看答案及解析

The Greens _____ China for seven years.

A.have come to B.have been to

C.have come in　 D.have been in

九年级英语单项填空中等难度题查看答案及解析

—When did the Greens come to China?

—They_____ China for seven years.

A. have come to　　 B. have been to

C. have come in　　 D. have been in

九年级英语单选题中等难度题查看答案及解析

—When did the Whites come to China?

—They_____ China for seven years.

A. have come to　　 B. have been in　　 C. have come in　　 D. have been to

九年级英语单选题困难题查看答案及解析

— Can you speak Chinese?

— Yes, I can. I _____ China for several years.

A. have been in B. have been to    C. have gone to

九年级英语单项填空中等难度题查看答案及解析