四、阅读理解（共15小题，30分）
第一节：阅读下面短文，从各题A、B、C、D四个选项中选出最佳答案。
A
I took the bus to work for many years. No one knew each other; the passengers all sat there sleepily in the morning. The bus was cheerless and silent. One of the passengers was a small gray-haired man who took the bus to the center for senior citizens. No one ever paid very much attention to him.
One July morning he said good morning to the driver and smiled. The driver nodded guardedly. The rest of us were silent. The next day, the old man boarded with a big smile and said in a loud voice: “A very good morning to you all!” Some of us looked up, amazed, and murmured “Good Morning” in reply. The following weeks, our friend was dressed in a nice old suit and tie. He said good morning to us every day and we gradually began tonod and talk to each other.

   One morning he even had a bunch of wild flowers in his hand. The driver turned around smiling and asked: “Have you got yourself a girlfriend, Charlie?” We never got to know if his name really was “Charlie”, but he nodded shyly and said yes. The other passengers whistled and clapped at him. Charlie waved the flowers before he sat down on his seat. Every morning after that Charlie always brought flowers. Some passengers also brought flowers for him. The bus became a happy place.
Then, one morning, as autumn was closing in, Charlie wasn’t waiting at his usual stop. When he wasn’t there the next day and the day after that, we started wondering if he was sick or on holiday somewhere.
When we came nearer to the center for senior citizens, one of the passengers asked the driver to wait. We all held our breaths when he went to the door. The old gentle man was fine, but one of his close friends had died over the weekend. How silent we were the rest of the way to work.
The next Monday Charlie was waiting at the stop, bending a bit more, a little bit more gray, and without a tie. Inside the bus was silent. Even though no one had talked about it, all of us sat there silently, our eyes filled with tears and a bunch of wild flowers in our hands.
51. What are we sure about the old man?
A. His name was Charlie.
B. He got sick over the weekend. 
C. He worked at the center for senior citizens.
D. He was in great sorrow when we saw him the next Monday.
52. Which of the following is not true?
A. The atmosphere on the bus was cheerful and lively at first.
B. People were surprised at the old man’s first greeting.
C. People were worried about the old man’s absence.
D. People on the bus at last shared happiness and sorrow together.
53. Which would be the best title for the passage？
A. How to Shorten the Distance between People
B. The Key to Friendship — Communication
C. Smiles Make a Bus Feel Like Home 
D. Charlie, A Smiling Gentle Man
B
Care for Your Dog
Like human beings, dogs may catch cold because of cold weather, wet conditions or can also get it from other sick dogs. If a dog has a running nose and watery eyes, coughs or sneezes, then it is quite probable that the dog has caught cold.
A dog’s cold can get over after a few days without treatment, but it totally depends upon the owner to treat it with medications or improve its immune power（免疫力）to get rid of the cold naturally. Following are some of the things you can do if your dog gets a cold.
You can improve its immune power by giving it proper nutrient diet. Healthy food can really do wonders. Try to give it food which is either suggested by the vet or is healthy for your pet. Increase the food which is rich in vitamins A, C and E.

Keep your dog warm. The best place for your dog in winter is inside your house. Do not keep your dog outside when it is cold and wet. At home you can also keep the dog warm with the help of carpets. This will make him comfortable and help him to recover fast.
Increase the liquid diet as it helps a lot. Water can be the best choice but you can also add broth(肉汤)in water which will give your dog strength. Warm water will make your dog more comfortable and will also keep the dog away from the respiratory infections（呼吸道感染）.
Steam treatment is considered to be effective in getting rid of cold. It makes the nose wet, which helps proper breathing. Just fill your bathroom with steam and leave your dog inside the bathroom for 15 minutes. Do it nearly 2 to 3 times a day and you will see your dog recovering.
These are some of the things you can do to help your dog recover from cold. However, if you are not able to find any improvement in its health, then turn to the vet for help immediately. 
54. When your dog catches cold, you should feed it on _________.
A. its favorite food B. food rich in vitamin B 
C. some meat and water D. the suggested food by the vet
55. When a dog catches cold, it is wrong to _________.
A. keep it inside during cold and wet weather   
B. leave it inside the bathroom full of steam 
C. let it eat too much solid food             
D. keep it sleeping on rugs at home
56. It can be learnt from the text that _________.
A. a dog’s cold can always disappear naturally
B. it’s quite easy to make a sick dog recover from cold
C. treating a dog’s cold sometimes needs a vet’s help 
D. cold in dogs won’t spread between each other.
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