1. (2017高三下·鞍山模拟) 七选五

    Imagine looking out of your window and seeing a whale swim by. That's the sight that surprises New York City residents recently. In the past years, humpback whales have been spotted in the two rivers surrounding the island of Manhattan, the Hudson River and the East River,

    Experts say that river cleanup efforts have improved water quality and led to an increase in the number of fish there. Fish are on the humpback's menu.The sighting is also an encouraging sign that conservation efforts are helping humpback whales come back. In 1973, the species was listed as the endangered. Now scientists say humpback whales are making a comeback.

    By the middle of the 20^th century, hunting whales for profit had nearly wiped out many whale species. In 1973, the U.S. set up the Endangered Species Act. People were no longer allowed to hunt them in the U.S. waters. In 1982, the International Whaling is illegal worldwide. Last September, it was announced that nine groups of humpback whales are no longer endangered. Four groups are still endangered and a fifth is threatened.

     The number of them is growing particularly faster in the Southern Hemisphere like Tasman Sea and Coral Sea. And the number of humpback whales in Hawaii has made an amazing recovery. In 1966, there were fewer than 1,500 humpbacks there. Today there are about 10,000. But humpbacks in other parts of the world are still struggling.

    “We still have a lot of work to do,” says Angela Somma, head of NOAAS Fisheries' endangered species division. "But with the right protection, the number of humpback whales should continue to grow.

A. These efforts to save whales are paying off.

B. People are frightened when seeing whales in the river.

C. Last year, one even swam past where the mayor lives.

D. Today there are about 100,000 humpback whales worldwide.

E. The extra food in the rivers is mainly what's attracting the whales.

F. Scientists have carried out further research on the number of the whales.

G. Scientists say that the focus needs to be on the whales that are still struggling.