1 . 选词填空

develop into;                  at least;               satisfy one’s demands;                 be connected with;    pay attention to;       date back to;        ups and downs;                    refer to

1. My family has a vase, which is said to_____ (追溯到) the Ming Dynasty.
2. It will take you _____ (至少) 20 minutes to get there.
3. In the past ten years, the town has_____ (发展为) a city.
4. When doing our work, we must _____ (注意) our ways.
5. He always _____ (查阅) a dictionary when coming across new words.
6. The hotel_____ (与……连接) the station by a walkway.
7. He has gone through many _____ (起起落落) in his life.