| Animal training refers to teaching animals specific responses to specific conditions or stimuli(刺激).Training may be for the purpose of companionship,detection,protection,entertainment or all of the above. An animal trainer may use various forms of reinforcement(强化)or punishment to condition an animal's responses.There are many ways to train animals and as a general rule no legal requirements or certifications(证书)are required. |
| Chickens |
| Fish |
| Pigs |
分析 本文属于说明文阅读,作者通过这篇文章主要向我们描述了对动物进行训练的目的,好处,以及对不同的动物的特点.
解答 21.D.细节理解题.根据第三部分1,2行Training chickens has become a way for trainers of other animals (primarily dogs) to perfect their training technique.说明训练鸡可以提高训练者的水平,故选D.
22.B.细节理解题.根据第四部分2,3行The fish may swim up and down signaling the owner to turn on its aquarium light when it is off,and it will skim the surface until its owner feeds it.说明金鱼可以示意主人喂食,故选B.
23.C.细节理解题.根据文章最后一部分1,2行Among all animals,they are the third cleverest after monkeys and dolphins.Scientists think the training of pigs is easier than the training of dogs and cats.说明猪很聪明,这是它容易被训练的原因,故选C.
点评 考察学生的细节理解和推理判断能力,做细节理解题时一定要找到文章中的原句,和题干进行比较,再做出正确的选择.在做推理判断题不要以个人的主观想象代替文章的事实,要根据文章事实进行合乎逻辑的推理判断.
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