Ⅳ阅读理解(2×20，共40分)阅读下列短文，从所给的四个选项中，选出最佳答案。
Mr. Brown had a nice shop in the main street of a small town. He sold jewelry, watches and the like. All went well some years, and then his shop was broken into twice in one month at night, and a lot of jewelry was stolen each time. Three weeks had passed, yet the police had not done much to catch the thief. So Mr. Brown decided to try to do something about it himself. He bought a good camera and fixed it up in his shop and put some cheap jewelry in front of it for the thief so that it could take a photo of anyone who stole the jewelry. A few nights later the thief did come again. But he did not touch any of the cheap jewelry that Mr. Brown had put out for him. He took the camera, which was worth 15,000 pounds.
1. The jewelry the thief had stolen was ________
A. very valuable. B. worth little money.
C. quite cheap. D. of no use to the thief.
2. How did the thief know about jewelry?
A. He knew a little about jewelry.
B. He knew a lot about it.
C. The poor one knew nothing about jewelry.
D. He knew little about it.
3. Why did Mr. Brown buy a camera and put it in the shop?
A. Because the camera was not so expensive as the jewelry or the watches in the shop.
B. Because he knew that the thief was interested in a cheap camera.
C. Because he thought that a good camera could help him find out who the thief was.
D. Because the policemen told him to do so.
4. What did Mr. Brown lose during the two months?
A. 15,000 pound notes.
B. A camera and 15,000 pounds.
C. Lots of jewelry and a good camera.
D. A lot of jewelry, a camera and 15,000 pound notes.
=
,所以两次通过的电荷量相同。A对