备战2018年高考阅读理解每日一练（26）

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CaliforniaCondor's Shocking Recovery

      California condors are North America's largest birds, with wing-length of up to 3 meters. In the 1980s, electrical lines and lead poisoning(铅中毒) nearly drove them to dying out. Now, electric shock training and medical treatment are helping to rescue these big birds.

      In the late 1980s, the last few condors were taken from the wild, and there are now more than 150 flying over California and nearby Arizona, Utah and Baja in Mexico.

Electrical lines have been killing them off. “As they go in to rest for the night, they just don't see the power lines,” says Bruce Rideout of San Diego Zoo. Their wings can bridge the gap between lines, resulting in electrocution(电死) if they touch two lines at once.

So scientists have come up with a shocking idea. Tall poles, placed in large training areas, teach the birds to stay clear of electrical lines by giving them a painful but undeadly electric shock. Before the training was introduced, 66% of set-freed condors died of electrocution. This has now dropped to 18%.

Lead poisonous has proved more difficult to deal with. When condors eat dead bodies of other animals containing lead, they absorb large quantities of lead. This affects their nervous systems and ability to produce baby birds, and can lead to kidney(肾) failures and death. So condors with high levels of lead are sent to Los Angeles Zoo, where they are treated with calcium EDTA, a chemical that removes lead from the blood over several days. This work is starting to pay off. The annual death rate for adult condors has dropped from 38% in 2000 to 5.4% in 2011.

Rideout's team thinks that the California condors' average survival time in the wild is now just under eight years. “Although these measures are not effective forever, they are vital for now,” he says. “They are truly good birds that are worth every effort we put into recovering them.”

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SurvivingHurricane Sandy(飓风桑迪)

Natalie Doan, 14, hasalways felt lucky to live in Rockaway, New York. Living just a few blocks fromthe beach, Natalie can see the ocean and hear the wave from her house. “It'sthe ocean that makes Rockaway so special,” she says.

On October 29, 2012,that ocean turned fierce. That night, Hurricane Sandy attacked the East Coast,and Rockaway was hit especially hard. Fortunately, Natalie's family escaped toBrooklyn shortly before the city's bridge closed.

When they returned to Rockaway the next day, they found their neighborhood in ruins. Many of Natalie's friends had lost their homes and were living far away. All around her, peoplewere suffering, especially the elderly. Natalie's school was so damaged that she had to temporarily attend a school in Brooklyn.

      In the following few days, the men and women helping Rock away recover inspired Natalie. Volunteers came with carloads of donated clothing and toys. Neighbors devoted their spare time to helping othersrebuild. Teenagers climbed dozens of flights of stairs to deliver water and food to elderly people trapped in powerless high-rise buildings.

“ My mom tells me that I can't control what happens to me,” Natalie says. “butI can always choose how I deal with it.”

Natalie's choice was to help.

      She created a website page matching survivors in need with donors who wanted to help. Natalie posted introduction about a boy named Patrick, who lost his baseball card collecting when his house burned down. Within days, Patrick's collection was replaced.

      In the coming months,her website page helped lots of kids: Christopher, who received a new basketball; Charlie, who got a new keyboard. Natalie also worked with other organizations to bring much-need supplies to Rock away. Herefforts made her a famous person. Last April, she was invited to the WhiteHouse and honored as a Hurricane Sandy Champion of Change.

Today, the scars(创痕)of destruction are still seen in Rockaway, but hope is in the air. The streets are clear, and many homes have been rebuilt. “I can'timagine living anywhere but Rockaway,” Natalie declares. “My neighborhood willbe back, even stronger than before.”