[单项选择]Cats ______ afraid of dogs, but my Kitty always chases my neighbor's dog.

[单项选择]Man: It's raining cats and dogs outside. Did you remember to bring the umbrella Women: Oops, ______.

[单项选择]The example of dogs and cats in the second paragraph is intended to _______.
A. explain which animals are mammals
B. show the differences between mammals
C. illustrate how shallow dreamless sleep is
D. reveal how smart they are

[单项选择]Some animals—dogs and cats, will voluntarily stay with a human even if given the chance to get away.
A. 许多动物像狗和猫，甚至自愿的跟人待在一起，赶都赶不走。
B. 有些动物如狗和猫，即使赶它们走也不会走，它们乐意与人为伴。
C. 一些动物如狗和猫，如果赶它们走，它们就会自愿跟人待在一起。
D. 有些像狗和猫的动物，即使赶它们走也会跟人待在一起。

[单项选择]Dogs and cats are similar in that ______.
A. people can use them for hunting
B. they are associated with man closely
C. they have the same way of living
D. they are equally liked by people

[单项选择]According to the passage, dogs and cats ______ .
A. as well as human beings cannot see some colours
B. have fewer cones than human beings
C. have less rods than human beings
D. can see colours as well as human beings

[单项选择]Why do people like dogs [A] Because dogs are lovely. [B] Because dogs are clever. [C] Because dogs always try to please their owners.

[单项选择]Although cats cannot see in complete darkness their eyes are much more ______ to light than are human eyes.
A. glowing
B. brilliant
C. sensitive
D. gloomy

[单项选择] 化合物 ①PhCOCH₂COCH₃； ②CH₃COCH₃； ③CH₃COCH₂CO₂CH₃； ④CH₃COCH₂COCH₃， 烯醇式结构含量由高到低的顺序是（）。
A. 4>1>3>2
B. 1>4>3>2
C. 1>3>2>4
D. 3>1>4>2
E. 4>3>1>2

[单项选择]Although cats cannot see in complete darkness, their eyes are much more ______ to light than are human eyes.
A. glowing
B. brilliant
C. sensitive
D. gloomy

[单项选择]What is the writer's feeling for cats
A. She gives them unreturned worship.
B. They are a combination of annoyance and intense admiration.
C. She is quite fond of them.
D. She is ashamed of being their slave.

[单项选择]

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 a- bout 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
A. an extreme measure in obedience training
B. a good way to teach the dog new tricks
C. the foundation for dogs to perform tasks
D. essential to solving the dog's behavior problems