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  3. 共用题干 第一篇Dog-racing and WageringMost of the dogs participating in organized c...

共用题干 第一篇Dog-racing and WageringMost of the dogs participating in organized c...

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问题 共用题干
第一篇

Dog-racing and Wagering

Most of the dogs participating in organized competition are male or female greyhounds,although races between whippets and between salukis are also held.The racing greyhound,a slender,graceful animal weighing about 29kg(about 65lb),is in its prime at approximately the age of three; however,it actively competes between the ages of one and five.It can attain speeds of up to 64km/h (40mph).The price of a trained racing greyhound depends on its record in competition.During its racing life an outstanding greyhound may earn up to $200,000 in purses and breeding fees.
Most dog-racing stadiums have specially designed facilities consisting of a grandstand,a running track, kennels, accommodations for pari-mutuel（赛马赌金计算器）betting, a judges' stand,and a system of floodlights to accommodate night racing. The racing area proper varies but is approximately 402m(1/4 mile)in length and averages 6m(20ft)in width.Its inside circumference is ringed by a metal rail along which the lure is propelled by electrical power. There are some 55 tracks currently active in the United States.
Races in the United States are commonly held at the distances of 503m(5/16 mile),604m (3/8 mile),and 704m(7/16 mile).About 13 races are run during a given program,with 8 or 9 greyhounds competing in each race. The competing greyhounds are muzzled（戴上嘴套）to assist the judges in photo finishes and as a precaution against fighting. They are raced in brightly colored numbered jackets to facilitate identification by judges and spectators.
As a prelude to each race,the mechanical lure is set in motion in full view of the greyhounds, which are confined in a starting box. When the lure is approximately 6m(20ft)beyond the starting box,the dogs are released in pursuit.As the race progresses,the speed of the lure is controlled so that it remains in advance of the pack.If any of the dogs interfere with the lure at any point short of the finish line,the race is automatically declared null and void.
Wagering and the prospect of winning large purse amounts are the important elements in the appeal of the sport to both spectators and greyhounds owners.American stakes offer prizes up to $200,000.In the U.S.,greyhound racing is ranked sixth among spectator sports.Wagering is legal in the states of Alabama,Arizona,Arkansas,Colorado,Connecticut,Florida,Idaho,Iowa,Kansas, Massachusetts,Nevada,New Hampshire,Oregon,Rhode Island,South Dakota,Texas,Vermont, West Virginia and Wisconsin.In 1988,some 27 million spectators wagered in excess of $3 billion at U.S.dog-racing tracks.
选项 During competition,dogs________will be in its prime time of performance.
A:at the age of two       
B:at the age of four
C:between one and five       
D:at about the age of three
答案D
解析文章第一段开始说参加比赛的有灰狗，虽然也会举行惠比特犬和萨卢基狗之间的比赛，综观全文没有提到宠物狗参赛，而题干中的exclude即表示“不包括”的意思，由此可以判断C正确。
第一段第二句提到“its prime at approximately the age of three”，即3岁是灰狗参赛的最佳年龄，而接下来提到它在1到5岁之间适合参赛，所以应该选D。
题干中的short of the finish line意思是“没到终点”，即赛狗在没到终点时受到诱饵的干扰会对比赛产生什么影响，第四段的最后一句“the race is automatically declared null and void"。 null表示“无效”, void意思为“宣布作废”，故选A。
最后一段的首句提到博彩和赢得大笔奖金是“in the appeal of the sport to both spectators and greyhounds owners”，即吸引观众和赛狗主人，选项B和C内容不完整，而A 则不正确，所以选D。
文章最后一段的后面一句指出博彩业在美国的19个州是合法的，并一一列出了这些州的州名，但是没有提到南卡罗来纳州、卡罗来纳州或华盛顿州，所以C(爱达荷州）正确。
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