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问题 填空题

小颖在田径场绕400m环形跑道跑了2圈，则她的位移大小是______m，路程是______m．

答案

小颖在田径场绕400m环形跑道跑了2圈，首末位置重合，则位移的大小为0m，路程等于800m．

故答案为：0、800．

选择题

国际黄金价格在4月12日和4月15日经历了一次震撼暴跌，纽约商品交易所黄金期货价格从1550美元/盎司下探到了1321美元/盎司。随后中国各地均出现抢购黄金的风潮，媒体戏称为“中国大妈”抄底打败了华尔街金融大亨。学者认为把国际金价回升和抢金混为一谈是笑话，金饰店内的黄金量和整个黄金市场相比不是一个数量级的，“中国大妈”也根本无法撼动整个金市，而这只是纯属巧合。这表明

A．期货市场上的黄金是商品

B．黄金的价值量发生了剧烈的变化

C．货币的本质是一般等价物

D．黄金没有价值，不宜作为贮藏手段
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单项选择题

During our two months on the road, Bennett and I had a really (1) experience with a good, honest (2) and some helpful mechanics.

We were driving east on Highway 10 when our "chick engine" light came on. We limped of a(n) (3) into Las Cruces. We had a real car (4) Bennett nursed the ear into a local garage. By this time the car was missing so (5) it was shaking all over. This was the (6) time to arrive at a garage—late Friday afternoon. Service adviser Scott was busy (7) paper work and customers as we (8) our problems. (9) he was already "ten cars behind", he told us to pull the car into the garage.

Lincoln, who we later (10) was one of the two motor technicians, took (11) of our car repairing. He and Scott and some other mechanics stayed several hours after closing, (12) the car.

Early the next morning (the shop was officially closed on Saturdays), Lincoln finally located the (13) and fixed it easily within only (14)

Later Scott (15) out to us that it was our attitude that helped. "You didn’t come into the place demanding this or that. You showed an (16) of our problems on a busy Friday afternoon. Customer’s attitude means a lot. " He was right in some way, customers should show (17) and understanding to people who (18) them. (19) people were extremely busy, they found way to at least try and help when they are met with politeness.

The pleasant experience I had shows that (20) for other people can always help.

1（）

A.awful 

B.pleasant 

C.wonderful 

D.terrible
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