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Dog eyesight declines with age. Injuries...

    Dog eyesight declines with age. Injuries and ailments can cloud their vision. Zero was a highly trained, driven alert dog. So, at competitions, when he started running into obstacles and falling off the ends of teeter-totters(跷跷板), his owner, San Francisco-area dog trainer Dianne Morey, was concerned.

As time passed, she noticed a pattern. The problems only occurred at competitions held in horse arenas, where yellow obstacles blended into the color of the sand covering the floor. Concerned about his eyesight, Morey took Zero to a vet, who diagnosed him with a genetic condition. Morey found the diagnosis “heartbreaking”. After one last competitionwhich he wonZero retired. In the time since, he’s led a life full of activities like dock diving and hiking, where poor vision is less dangerous. While there’s no cure for his disease, protective eyewear has helped keep him safe while being active.

On average, dogs develop nearsightedness or farsightedness less often than humans, says Alexandra vander Woerdt at Animal Medical Center in New York City. However, their eyesight also declines with age. Injuries and some diseases such as glaucoma(青光眼) can cloud their vision. Thinking back, Morey realizes some behaviorsfor instance, the way Zero poked his nose before entering a gatewere signs his vision was impaired.

Identifying vision issues in dogs isn’t as easy as with humans. Dogs don’t bark wrong letters on the eye chart, and they’re very good at adapting. Treatments for eye problems may include eyedrops, medications or surgery. Eyewear can also play a role in treating or preventing many issues. Many dogs don’t like eyewear at first. Zero was an exception, thanks to his training in agility and tricks, Morey says.

1.What made Dianne Morey concerned

A.Her trained dog Zero fell off in competitions.

B.She was badly hurt by a dog in a competition.

C.She found her eyesight was declining with age.

D.Her trained dog Zero wasn’t as clever as before.

2.What can we know from the second paragraph

A.Zero is retiring soon.

B.Zero’s disease can’t be cured.

C.Zero got the disease from his birth.

D.Zero has recovered from his poor eyesight.

3.Which of the following can replace the word “blended” in the second paragraph

A.added.

B.missed.

C.needed.

D.mixed.

4.What makes it difficult to identify dogs’ vision problems

A.They are too fierce to control.

B.They don’t like to wear eyewear.

C.They adapt to the poor sight easily.

D.They bark wrong letters on the eye chart.

 

1.A 2.B 3.D 4.C 【解析】 这是一篇新闻报道。文章主要讲述了一只名叫Zero的警犬由于视力下降而不得不退役不再参加比赛的故事,从而提出一个认知:狗的视力随着年龄的增长而下降;受伤和疾病会影响他们的视力,但却不容易被察觉。对于出现视力问题的狗来说,眼药水、药物治疗,手术或眼镜可以在治疗或预防上发挥作用。 1. 细节理解题。根据文章第一段内容“So, at competitions, when he started running into obstacles and falling off the ends of teeter-totters, his owner, San Francisco-area dog trainer Dianne Morey, was concerned.( 因此,在比赛中,当它开始遇到障碍或从跷跷板的末端掉下来时,它的主人、旧金山地区的驯狗师Dianne Morey就很担心。)”可知,Dianne Morey 担心的是Zero从比赛中摔下来。故选A项。 2. 推理判断题。根据文章第二段内容“While there’s no cure for his disease, protective eyewear has helped keep him safe while being active.( 虽然没有治愈他的疾病的方法,但防护眼镜帮助他在活动时保持安全。)”可知,Zero的眼疾是没有治疗方法的。故选B项。 3. 词义猜测题。分析可知,划线单词所在句“The problems only occurred at competitions held in horse arenas, where yellow obstacles blended into the color of the sand covering the floor.”主句中提及的“the problems”应是上文内容“running into obstacles and falling off(撞上障碍,掉下来)”,根据本句内容可知,只有在赛马场举行的比赛中才会出现该问题,结合常识可知,比赛场地里,地面沙子颜色一般为土黄色,参加比赛的黄色障碍物应是与场地地面的沙子的颜色混合在了一起使得视力有问题的Zero撞上障碍物。因此可推知,划线单词“blended”应是“混淆/混合”之意,与选项D“mixed(混合)”含义一致。故选D项。 4. 细节理解题。根据文章最后一段内容:Identifying vision issues in dogs isn’t as easy as with humans. Dogs don’t bark wrong letters on the eye chart, and they’re very good at adapting. 鉴别狗的视觉问题不像人类那么容易,(出现视力问题的)狗不会在看视力表时叫出错误的字母,而且它们非常善于适应(已经视力不良的情况)。可知,狗很容易适应(已经)糟糕的视力,因此很难鉴别它们的视力问题。故选C项。
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