251. The America’s selling weapons to Taiwan cast a shadow on the Sino-U.S relationship. Which of the following can explain the underlined part?

　 　　 A. was a good omen on　 B. had ill effect on　　 C. was at war with 　　　　　　　 D. effected

250. Every year Harvard University awards　　　 to excellent foreign students in theoretical physics.

　 　 A. bonus　　　 　　　　　　 B. scholarships　　 　　 C. rewards　　　 　　　　 D. pensions

249. A_____ has taught us what atoms are made up of and how powerful the atom bomb is.

　　　 A. seaman　　 　　　　　　 B. salesman　　 　　　　　 C. naturalist　　　 　　　　　　　 D. scientist

248. A group of the red scarves are playing on the seaside_______.

A. sand　　 　　　　　　　　 B. sands　　 　　　　　　　 C. sail　　 　　　　　　　　　 D. salts

247. He found it quite impossible to learn _____ well in less than 6 months so he registered for the next semester(term).

A. Russian　　 　　　　　　 B. Russians　　 　　　　　　 C. Russia　 　 　　　　　　　 D. Russias

246. Nelson Mandela played and is still playing a leading ________ in ending apartheid(种族隔离政策) in South Africa.

A. use　　 　　　　　　　　 B. roles　　　 　　　　　　 C. role　　　 　　　　　　　 D. parts

245. After work, the young man and his colleagues went to the nearest _____ and sat down at the table for a grand dinner.

A. bar　　 　　　　　 　　　 B. cafe　　　　 　　　　　 C. restaurant　　 　　　　 D. dining-room

244. It is widely believed that a good _____ between the two countries is important for the development of both China and the USA.

　　　 A. connection 　　　　　　　 B. link 　　　　　　　　　　　　 C. relation　 　　　　　　　 D. relationship

243. There are many kinds of media(大众传播). Which of the following do not belong to the same category?

A. TV, radio, newspaper　　　　　　　　　　　　　　　　　　 B. radio, newspaper, magazine

C. radio, magazine, internet　　　　　　　　　　　　　　　 D. radio, internet, railway

242. Every day the teacher gives us a one-minute　　　　 in English.

A. test　　　　　 　　　　 B. exam　　　　　 　　　 C. contest　　　　 　　 D. quiz