DELTA备考策略与模拟试题
TEST 3
Dog breeds developed as humans intentionally mated dogs with certain desirable traits to encourage those traits in the next generation. Through this process, dogs developed into distinct groups, with each group specializing in a skill such as hunting, herding, or guarding. Today, dog breeders apply the science of canine genetics to produce purebred dogs with characteristics suitable for the dog’s intended purpose. Purebred dogs are registered with a canine association such as the American Kennel Club. Breed registries ensure breed purity by documenting each dog’s ancestry, achievements, and working qualities.
The aim of dog breeding is to benefit dogs by enhancing their desirable traits. Breeders choose to mate dogs that best represent the breed in appearance, performance, or some other specific point. Careful selection increases the probability that the favorable characteristics will be conveyed genetically. Professional breeders love dogs and care about each dog they bring into the world. Breeders are experts in their breed and know the genetic history of each individual dog. They support and participate in programs that collect and maintain standardized information on the health of dogs. For these reasons, dog breeders not only improve dog breeds but also contribute to the welfare of all dogs.
Popular culture, dog shows, and other media foster public appreciation of various breeds. The films Rin Tin Tin and 101 Dalmatians mad the German shepherd and the Dalmatian popular breeds for pets. Television has done the same for the collie, the Chihuahua, and the Jack Russell terrier. Dog shows educate the public and promote dog breeds. Websites and social media provide information about popular breeds and their suitability for various contexts. All of these things encourage responsible dog ownership.
Question:
Summarize the points made in the lecture, being sure to explain how they contradict specific points made in the reading passage.
1.阅读要点概括
Key point 1: Breeders love dogs and contribute to their welfare.
Key point 2: Dog breeder use genetics beneficially to produce dogs with desirable traits. The reading speaks favorably of breed registries.
Key point 3: The promotion of dog breeds encourages responsible dog ownership.
2.听力要点概括
Key point 1: Too many dog breeders are unqualified; backyard breeders exploit animals for profit.
Key point 2: The focus on breed purity leads to inbreeding and genetic disorders.
Key point 3: The culture of dog breeding is responsible for the proliferation of puppy mills that produce an overpopulation of dogs, leading to more unwanted dogs.
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