阅读理解
Dogs are social animals and without proper training, they will behave like wild animals. They will soil your house, destroy your belongings, bark excessively, fight other dogs and even bite you. Nearly all behavior problems are perfectly normal dog activities that occur at the wrong time or place or are directed at the wrong thing. The key to preventing or treating behavior problems is learning to teach the dog to redirect its normal behavior to outlets that are acceptable in the domestic setting.
One of the best things you earl do for your dog and yourself is to obedience train (驯服) it. Obedience training doesn''t solve all behavior problems, but it is the foundation for solving just about any problem. Training opens up a line of communication between you and your dog. Effective communication is necessary to instruct your dog about what you want it to do.
Training is also an easy way to establish the social rank order. When your dog obeys a simple request of "come here, sit," it is showing obedience and respect for you. It is not necessary to establish yourself as top dog or leader of the dog pack (群) by using extreme measures. You can teach your dog its subordinate (从属的) role by teaching it to show submission to you. Most dogs love performing tricks for you to pleasantly accept that you are in charge.
Training should be fun and rewarding for you and your dog. It can enrich your relationship and make living together more enjoyable. A well-trained dog is more confident and can more safely be allowed a greater amount of freedom than an untrained animal.
单选题
Behavior problems of dogs are believed to ________.
【正确答案】
C
【答案解析】辨认事实题。根据题目中的behavior problems查找到第3句“Nearly all behavior problems are perfectly normal dog activities...几乎所有的行为问题都是……狗的正常行为”，可知C项正确，即狗的行为问题“仅仅是它们天性中的一部分”。A项在现代社会变得更坏了”和D项给社区带来威胁”在文中未提及，B项“当它们变野时会发生”是对第3句中occur at the wrong time or place or are directed at the wrong thing的曲解。
单选题
The primary purpose of obedience training is to ________.
【正确答案】
D
【答案解析】辨认事实题。根据题目中的primary和obedience training查找到第1段尾句“The key...is learning to teach the dog to redirect its normal behavior to outlets that are acceptable in the domestic setting．”和第2段首句“One of the best things...is to obedience train(驯服)it”，其中key和best体现了题目中的primary，而D项“为狗的未驯服的行为提供发泄的途径”符合原文，且包含关键词outlet；C项“使狗意识到其主人的权威”干扰性最大，依据是第3段的首句“训练也是建立社会等级关系的一种较为简单易行的办法”，但这只是次要目的，由also体现。A项教会狗玩一些花样”属于一个细节描述，而非训练目的；B项使狗重新获得其正常的行为”是对第1段最后一句中redirect its normal behavior to outlets的断章取义，何况狗的正常行为是一些被否定了的问题行为。
单选题
Effective communication between a dog and its owner is ________
【正确答案】
C
【答案解析】事实推理题。根据题目中的effective communication查找到第2段尾句“Effective communication is necessary to instruct your dog about what you want it to do．有效的交流是教会你的狗做你想要它做的事情所必需的。”可推断出effective communication is the foundation for dogs to perform tasks，即C项狗完成任务的基础”A项“驯化训练中最极端的方法”是第3段第3句的断章取义；B项教会狗新把戏的很好的方法”在文中未提及；D项干扰性较大，但“解决狗的行为问题必不可少的”是第1段的training。
单选题
Why do pet dogs love performing tricks for their masters?
【正确答案】
A
【答案解析】辨认事实题。本题询问为什么宠物狗喜爱为它们的主人表演把戏。根据题目中的dogs love performing tricks查找到第3段尾句“Most dogs love performing tricks for you to pleasantly accept that you are in charge．大多数狗喜欢为主人表演把戏，以表示愉快地接受主人的控制”，可见答案为A项显示它们愿意服从”；而非B项“显示它们对主人的喜爱”或C项避免受到惩罚”；D项赢得狗群的领导权”是对第3段第3句的断章取义。
单选题
When a dog has received effective obedience training, its owner ________