阅读下列短文,从每题所给的A、B、C、和D四个选项中选出最佳选项。
A
In Africa, the honeyguide birds can respond to human calls to lead people to honey—what scientists describe as a mutualistic interaction, or one that benefits both creatures. The birds tweet and fly from tree to tree to guide honey seekers to hidden bee nests, typically inside trees. Then, humans open the trees to find honey, and the birds can dine on beeswax, their favorite food.
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Dogs have an excellent sense of smell, which is why the folks at Penn Vet Working Dog Center are training dogs to identify the smell of cancer using tissue and blood samples from people who suffer. The scientists hope to develop a way for dogs to screen samples first, then perform followup testing on the samples the dogs flagged—a system for spotting cancer in its early stages.
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Having a snake wrapped around your neck isn't necessarily what you usually expect. But Monty, a 13yearold snake has been helping customers relax with neck massages (按摩). It's unlikely that he was trained to do the job and he is just dancing like any other snake would when around a person's neck. Regardless, this special snake needs to be booked a few weeks in advance.
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The Guide Horse Foundation has been training miniature horses (horse standing 34 inches or less)as assistance animals for the visually damaged since 1999. Miniature horses are ideal service animals for people who feel uncomfortable with dogs or who want a guide animal with a longer life span. The horses typically live from 30 to 40 years.
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1.According to the text, which animal can help you relax?
A.A snake. B.A dog.
C.A honeyguide bird. D.A miniature horse.
2.Miniature horses could serve ________.
A.blind people who dislike dogs B.blind people who can live longer
C.animal lovers who search for honey D.animal lovers who suffer from cancer
3.The text is about animals' ________.
A.special training B.great potentials
C.unique jobs D.high intelligence