答案：

　　第一部分 詞匯

　　1-5. CDBCA        6-10. BDADD        11-15. ACDDB

　　第二部分 實戰高分例文；

　　Questions flooded every inch of my mind at first. There were so many things that have to be taken into consideration. What the weather would be like？ What was the price of the train？ Even hotel booking was as vital problem. Fortunately， the Internet helped us a lot.

　　Having got the information about the train， I went to the train station to buy tickets. It seemed that many people planning to travel for the sake of the short weekend.

　　Next came the most troublesome part. I rummaged a large suitcase for packing. I referred from the internet and made a specific list of things to carry. My grandma prepared T-shirts and shorts and slippers because of the hot weather.

　　I went to the post office to buy them a map of Beidaihe， which allowed them to lead their trip freely， so far as I could consider， I packed them two sunglasses. Finally， grandma remembered to take an umbrella with them in case it rained.

　　Finally， It was time to set off. I accompanied my grandparents to the train station to see them off. They were very happy and excited for the expected trip to Beidaihe. Waving my hand， I saw the train became smaller and smaller， finally disappeared.

　　I was very proud of myself in that I organized the whole trip. The broad smiles on my grandparents faces delighted me. And I decided to do more for them in the future.