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

Any housewife who went to the new supermarket wished to be the lucky customer who did not have to pay for her shopping. This was what the 　21　just inside the entrance 　22　.It said: “Remember,　23　,one of our customers gets 　24　goods. THIS MAY BE YOUR LUCKY DAY!” For quite a long time Mrs. Edwards　25, like many of her  26, to be the lucky customer. Unlike her friends, she never　27　hoping. The 　28　in the kitchen was full of things which she did not need. Her husband tried to advise her 　29　buying so many things but failed. She 　30　dreamed of the DAY when the manager of the supermarket would come up to her and say, “Madam, THIS IS YOUR LUCKY DAY. Everything in your 　31　doesn’t need to be paid!” One Friday afternoon Mrs. Edwards shopped  32　.But she was not the lucky customer. No sooner had she just put the things inside her 　33　than she found that she had forgotten to 　34　tea. She dashed back to the 　35　, got some tea and went towards the　36　.As she did so, she saw the 　37　came.　38　his hand he said, “I want to 　39　you. You are our LUCKY CUSTOMER this week! Everything you have in your basket　40　 !”

1.A .notice     B. report           C. board            D. newspaper

2. A. did       B. promised     C. made         D. agreed

3.A. every day  B. every month  C. twice a week D. once a week

4.A. excellent B. free             C. extra            D. unexpected

5. A. waited        B. came             C. hoped        D. went

6.A. friends        B. neighbors        C. relatives        D. customers

7. A. got rid of    B. got along with   C. gave up      D. gave out

8.A. counter    B. cushion      C. food             D . cupboard

9. A. against       B. for          C. with             D. about

10.A. often         B. always       C. usually      D. seldom

11.A. bill      B. hand         C. car          D. basket

12.A. anxiously     B. seriously        C. crazily      D. wonderfully

13.A. pockets   B. car          C. basket       D. house

14. A. buy      B. find             C. take             D. have

15.A. shop      B. counter      C. department   D. supermarket

16.A. door      B. entrance         C. cash-desk        D. shelves

17.A. secretary B. policeman        C. manager     D. salesman

18. A. Putting out B. Holding out C. Shaking      D. Waving

19.A. congratulate B .tell          C. inform          D. thank

20.A. is yours      B. means nothing    C. belongs to you  D. costs nothing

阅读下列短文，从每题所给的选项中选出最佳答案

　　Some animals and insects(昆虫)use camouflage that is, they change color so that it is the same as the color of the tree or plant on which they are sitting. Others have developed a color thousands of years which is like the color of their living place.

　　One of the second kind is the Peppered Moth, which is found in England. It is light brown in color, and likes to rest on trees which are also light brown. This makes the moth difficult to be seen. It means that birds are less likely to see it and eat it.

　　But, about sixty years ago, smoke from factories began to reach some of the trees where the moth rested. It made the trees blacker. This meant that the moth become easier to see.

1．The word “camouflage” in the first sentence means ____.

[　　]

A．he same color

B．the tree on which insects are sitting

C．making it difficult to see something

D．color is d\always changing

2．The Peppered Moth likes to rest on trees which are light brown in order ____.

[　　]

A．not to be eaten by birds

B．not to be seen by other insects

C．to change its color

D．to be see by birds

3．Mother became easier to see because ________ .

[　　]

A．the moth changed its color

B．trees became blacker after 60 years

C．smoke from factories could lighten the color of the moth

D．smoke from factories mad the trees darker

4．It seems that ____.

[　　]

A．the moth always has the same color as the color of the trees

B．the moth is able to develop its color over years

C．people like the moth found in England

D．the Peppered Moth is being experimented

5．What do you think would probably happen?

[　　]

A．The peppered Moth would become darker year by year.

B．Te Peppered moth would change its color once.

C．The Peppered Moth would die out.

D．The Peppered Moth would be eaten by birds.