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职称英语理工类补全短文真题练习
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篇一
Toads are Arthritis and in Pain
Arthritis is an illness that can cause pain and swelling in your bones. Toads, a big problem in the north of Australia, are suffering from painful arthritis in their legs and backbone, a new study has shown.
The toads that jump the fastest are more likely to be larger and to have longer legs.46
The large yellow toads, native to South and Central America, were introduced into the north-eastern Australian state of Queensland in 1935 in an attempt to stop beetles and other insects from destroying sugarcane crops. Now up to 200 million of the poisonous toads exist in the country,and they are rapidly spreading through the state of Northern Territory at a rate of up to 60 km a year.
The toads can now be found across more than one million square kilometers. 47 A Venezuelan poison virus was tried in the 1990s but had to be abandoned after it was found to also kill native frog species.
The toads have severely affected ecosystems in Australia. Animals, and sometimes pets, that eat the toads die immediately from their poison, and the toads themselves eat anything they can fit inside their mouth. 48
A co-author of the new study, Rick Shine, a professor at the University of Sydney, says that little attention has been given to the problems that toads face. Rick and his colleagues studied nearly 500 toads from Queensland and the Northern Territory and found that those in the latter state were very different. They were active, sprinting down roads and breeding quickly.
According to the results of the study, the fastest toads travel nearly one kilometer a night.
49 But speed and strength come at a price- arthritis of the legs and backbone due to constant pressure placed on them.
In laboratory tests, the researchers found that after about 15 minutes of hopping, arthritic toads would travel less distance with each hop (跳跃). 50 These toads are so programmed to move,apparently, that even when in pain the toads travelled as fast and as far as the healthy ones,continuing their relentless march across the landscape.
A. But this advantage also has a big drawback--up to 10% of the biggest toads suffer from arthritis.
B. The task now facing the country is how to remove the toads.
C. But arthritis didn't slow down toads outside the laboratory.
D. Toads with longer legs move faster and travel longer distances while the others are being left behind.
E. Toads are not built to be road runners-- they are built to sit around ponds and wet areas.
F. Furthermore, they soon take over the natural habitats of Australia's native species.
篇二
Wrongly Convicted Man and His Accuser Tell Their Story
NEW YORK, NY, January 5,2010. St, Martin's Press has announced the release of the paperback edition of Picking Cotton, a remarkable true story of what novelist John Grisham calls an "account of violence, rage, redemption (救赎), and, ultimately forgiveness".
The story began in 1987, in Burlington, North Carolina, with the rape of a young white college student named Jennifer Thompson. During her ordeal, Thompson swore to herself that she would never forget the face of her rapist, a man who climbed through the window of her apartment and assaulted her brutally.46 When the police asked her if she could identify the assailant (袭击者) from a book of mug shots, she picked one that she was sure was correct, and later she identified the same man in a lineup.
Based on her convincing eye witness testimony, a 22-year-old black man named Ronald Cotton was sentenced to prison for two life terms. Cotton's lawyer appealed the decision, and by the time of the appeals hearing, evidence had come to light suggesting that the real rapist might have been a man who looked very like Cotton, an imprisoned criminal named Bobby Poole. 47 Jennifer Thompson looked at both men face to face, and once again said that Ronald Cotton was the one who raped her.
Eleven years later, DNA evidence completely exonerated (证明……清白 ) Cotton and just as unequivocally ( 明确地) convicted Poole, who confessed to the crime.48 "The man I was so sure I had never seen in my life was the man who was inches from my throat, who raped me, who hurt me, who took my spirit away, who robbed me of my soul," she wrote. "And the man I had identified so surely on so many occasions was absolutely innocent."
49 Remarkably both were able to put this tragedy behind them, overcome the racial barrier that divided them, and write a book, which they have subtitled "Our memoir of injustice and redemption".
Nevertheless, Thompson says, she still lives "with constant pain that my profound mistake cost him so dearly.50"
A. Jennifer Thompson decided to meet Cotton and apologize to him personally.
B. Many criminals are sent to prison on the basis of accurate testimony by eye witnesses.
C. I cannot begin to imagine what would have happened had my mistaken identification
occurred in a capital case.
D. Another trial was held.
E. Thompson was shocked and devastated.
F. During the attack, she made an effort to memorize every detail of his face, looking for scars, tattoos (纹身), or other identifying marks.
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