We were told not to touch the equipment in the laboratory unless ________.

A. allowed to do               B. allowing to do           C. allowed to               D. allowing to

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 can do for your dog and yourself is to train its obedience. 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 pack（群）by using extreme measure. 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.
51. Behavior problems of dogs are believed to _______.
A. be just part of their nature
　 B. worsen in modern society
　 C. occur when they go wild
　 D. present a threat to the community
52. The primary purpose of obedience training is to _______.
　 A. teach the dog to perform clever tricks
　 B. make the dog aware of its owner’s authority
　 C. provide the dog with outlets for its wild behavior
　 D. enable the dog to regain its normal behavior
53. Effective communication between a dog and its owner is _______.
　 A. essential to solving the dog’s behavior problems
　 B. the foundation for dogs to perform tasks
　 C. a good way to teach the dog new tricks
　 D. an extreme measure in obedience training
54. Why do pet dogs love performing tricks for their masters?
　 A. To avoid being punished.
　 B. To show their affection for their masters.
　 C. To win leadership of the dog pack.
　 D. To show their willingness to obey.
55. When a dog has received effective obedience training, its owner _______.
　 A. can give the dog more rewards
　 B. will enjoy a better family life
　 C. can give the dog more freedom
　 D. will have more confidence in himself

There is a poster below. Read it carefully.
　　VISIT SWANSEA ZOO!
　　Come and see the African elephants and the new tigers from India. The Arctic bears are waiting to meet you, and the monkeys from Zaire are waiting to throw things at you. The hyenas (a flesh-eating animal, like a wolf, with a howl that sounds like wild laughter) from Tanzania are waiting to laugh at you, and the giraffes from Zambia are waiting to look down on you.
　　Tickets
　　Adult: $1.20
　　Children: Over 12: 80 cent
　　 Under 12 : Free
　　Opening Time: 9: 00a. m. ~4: 00p. m.
　　Except Fridays: 10: 00a. m. ~3: 00p. m.
　　KEEP THE ZOO CLEAN!
　　DO NOT FEED,TOUCH OR GO NEAR THE ANIMALS!
【小题1】If you want to visit the Swansea Zoo, what is the best time to go there?

阅读下面短文，掌握其大意，然后从各题所给的A、B、C、D四个选项中，选出可以填入空白处的最佳选项，并在答题纸上将该项涂黑。

　　I had my first job at the age of thirteen, when a friend of my mother’s who owned a book shop 　36　me for six hours a week to help her in the shop. I was very 　37　to earn my own pocket money and my parents 　38　interfered with how I spent it, even when I was spending it 　39　. They believed that by earning money, spending it, and learning from the 　40　, I would become more mature and 　41　 about how to handle work, relationships with others, and money.

　　Like many 　42　parents, my parents also let me and my brothers do things over which they 　43　a great deal. When I was sixteen, for example, after I finished high school and before I entered university, I wanted to spend the summer months traveling around 　44　. My mother was against the idea of my traveling alone at such a young age, but my father felt that it would be a great 　45　for me. In the end, my father won the 　46　on the condition that I limited my traveling to France, my mother’s home, where I had many uncles, aunts and cousins 　47　through the country who could 　48　shelter and help if I needed them.

　　Three years later, my younger brother decided to 　49　a year off after his first year in university and travel through the United States and the Caribbean. Again my mother was very worried and not 　50　to see my brother leave school, but my father encouraged him and my brother had a(n) 　51　year working his way on trains and ships to 　52　passage to different ports and cities, and discovering many fascinating places and people.

　　These kinds of experiences are probably rare for children in many countries but in the US they are fairly 　53　. Most parents start 　54　their children at a young age to do small things by themselves. By the time they have finished high school, many American kids have already had part-time jobs, traveled around the US or other countries on their own, have 　55　the university they plan to attend and maybe even decided on their future career, and so on.

　　36. A. taught　　　　 B. allowed　　　　C. treated　　　　 D. hired

　　37. A. anxious　　　　B. content　　　　C. proud　　　　　 D. hopeful

　　38. A. never　　　　　B. ever　　　　　 C. always　　　　　D. even

　　39. A. quickly　　　　B. foolishly　　　C. seriously　　　 D. honestly

　　40. A. work　　　　　 B. mistakes　　　 C. others　　　　　D. books

　　41. A. strict　　　　 B. reasonable　　 C. polite　　　　　D. responsible

　　42. A. American　　　 B. Japanese　　　 C. Chinese　　　　 D. British

　　43. A. helped　　　　 B. supported　　　C. shared　　　　　D. worried

　　44. A. Asia 　　　　　B. Africa　　　　 C. Europe　　　　　D. Oceania

　　45. A. journey　　　　B. experience　　 C. chance　　　　　D. possibility

　　46. A. argument 　　　B. game　　　　　 C. discussion　　　D. plan

　　47. A. send out 　　　B. give out　　　 C. carry out　　　 D. spread out

　　48. A. promise　　　　B. afford　　　　 C. provide　　　　 D. serve

　　49. A. leave　　　　　B. make　　　　　 C. take　　　　　　D. prepare

　　50. A. angry　　　　　B. eager　　　　　C. sorry 　　　　　D. sad

　　51. A. unusual　　　　B. hard　　　　　 C. strange　　　　 D. busy

　　52. A. accept　　　　 B. earn　　　　　 C. find　　　　　　D. search

　　53. A. welcome　　　　B. fit　　　　　　C. necessary　　　 D. common

　　54. A. bringing　　　 B. forcing　　　　C. pushing　　　　 D. protecting

　　55. A. selected　　　 B. admired　　　　C. afforded　　　　D. left