四川省岳池县2015高考英语冲刺自练及答案8.doc
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1、阅读理解。(2014西安模拟) If youre a dog lover, you probably know about the Westminster Kennel Club Dog Show. Held annually in New York City, the event attracts thousands of dogs and their handlers, each competing for the top prize, Best in Show. Westminster is so popular that some people call it a Canine(犬科)
2、Super Bowl. But did you know that lots of smallerand very differentdog shows take place each year across the country? One of them was held recently in Jacksonville, Florida. It was the Pals and Paws Agility Trial. About 100 dogs took part in the three-day event, held March 810 at the Jacksonville Eq
3、uestrian Center. In a dog contest, dogs compete on an obstacle course. They run through tunnels, weave through poles and jump through hoops and over hurdles. Handlers direct the dogs through obstacles. Dogs are judged on how long it takes them to complete the obstacle course and how well they perfor
4、m each of the challenges. Ribbons and titles are awarded as dogs complete different events. Dog agility(灵活)is a popular sport, widely practiced around the world. Participants say it strengthens the bond between handler and dog while providing exercise for both. Does your dog have what it takes to co
5、mpete? Liz McGuire says preparation is key. “You can keep your dog in condition by exercising them and feeding them the right foods, ”she said. “The dog has to train, sort of like a football player. ”McGuire competes in agility trials with five Australian shepherds(牧羊人). Suzanne Wesleys gray poodle(
6、狮子狗), Raya, was in top shape at the Jacksonville event: Raya won the Agility Dog Champion title. It is one of the competitions highest awards. Other owners and dogs taking part in the trials included Terry Herman and her miniature poodle, Idgie, and Stuart Mah with his four-year-old border collie, A
7、res. For dog owners like Hunter Moore, however, the Pals and Paws Agility Trial was pure entertainment. He has a pug named Bessie, but he doesnt compete. What did Moore like most about the Jacksonville event? “Seeing everyone try their best, even the dogs! ”【文章大意】这是一篇新闻报道, 介绍流行在美国佛罗里达州的Pals and Paws
8、 Agility Trial大赛的情况。1. The first paragraph is mainly intended to. A. advertise the dogsB. introduce the topicC. entertain the readersD. attract more visitors【解析】选B。推理判断题。第一段介绍纽约家喻户晓的the Westminster Kennel Club Dog Show引出话题, 然后第二段进一步介绍小型的犬类比赛。2. The underlined word“hurdles”in Paragraph 3 is closest i
9、n meaning to. A. ribbonsB. channelsC. trainersD. barriers【解析】选D。词义猜测题。依据第三段内容推断其中一项障碍赛要求狗和主人密切配合通过各种障碍, 时间最短, 表现最好者获奖。3. Which of the following is NOT true about the Pals and Paws Agility Trial? A. It is held every year in New York City. B. Therere about 100 dogs involved this year. C. Ribbons and h
10、onors are given to best dogs. D. Dog agility is one of the most popular items. 【解析】选A。细节理解题。A项是张冠李戴错误, 这与原文第二段不一致; 其余选项与全文信息一致。4. According to the passage, who went to the Pals and Paws Agility Trial simply for fun? A. Liz McGuireB. Suzanne WesleyC. Terry HermanD. Hunter Moore【解析】选D。细节理解题。依据最后一段For
11、dog owners like Hunter Moore, however, the Pals and Paws Agility Trial was pure entertainment. 得知Hunter Moore参与的目的纯粹是娱乐而不是获奖。阅读理解。Can people change their skin color without suffering like pop king Michael Jackson? Perhaps yes. Scientists have found the gene that determines skin color.The gene comes
12、in two versions, one of which is found in 99 per cent of Europeans. The other is found in 93 to 100 per cent of Africans, researchers at Pennsylvania State University report in the latest issue of Science.Scientists have changed the color of a dark-striped zebrafish(斑马鱼) to uniform gold by inserting
13、 a version of the pigment (色素) gene into a young fish. As with humans, zebrafish skin color is determined by pigment cells, which contain melanin (黑色素). The number, size and darkness of melanin per pigment cell determine skin color.It appears that, like the golden zebrafish, light-skinned Europeans
14、also have a mutation (变异) in the gene for melanin production. This results in less pigmented skin.However, Keith Cheng, leader of the research team, points out that the mutation is different in human and zebrafish genes.Humans acquired dark skin in Africa about 1.5 million years ago to protect bodie
15、s from ultra-violet rays of the sun (太阳光紫外线), which can cause skin cancer.But when modern humans leave Africa to live in northern latitudes, they need more sunlight on their skin to produce vitamin D. So the related gene changes, according to Cheng.Asians have the same version of the gene as African
16、s, so they probably acquired their light skin through the action of some other gene that affects skin color, said Cheng.The new discovery could lead to medical treatments for skin cancer. It also could lead to research into ways to change skin color without damaging it like chemical treatment did on
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