[单项选择]In 1969 two American astronauts _____ on the moon and walked on its rocky, dusty surface.
A. concentrate
B. based
C. landed
D. focused

[单项选择]In 1969 two American astronauts _____ on the moon and walked on its rocky, dusty surface.
A. concentrate
B. based
C. landed
D. focused

[单项选择]The two astronauts have splashed down in the Pacific Ocean, only five miles from the aircraft carrier that was______ for the recovery mission.
A. detach
B. dispatched
C. devote
D. dismantled

[单项选择]It was in that year ______ the American astronauts succeeded______landing on the moon.
A. when, on
B. that, on
C. when, in
D. that, in

[单项选择]Was it in 1969 ______ the American astronauts succeeded in landing on the moon
A. that
B. ever since
C. when
D. of which

[单项选择]The astronauts ______ returning from the moon to the earth according to the plan.
A. succeeded in
B. success for
C. succeed to
D. succeed at

[单项选择]The two astronauts ______ someday hope it is to fly the craft into earth orbit were flight testing.
A. that
B. whom
C. whose
D. who

[单项选择]The two astronauts______ someday hope it is to fly the craft into earth orbit were fight testing.
A. that
B. whom
C. whose
D. who

[单项选择]The two psychologists had to modify the American Sign Language somewhat in order to accommodate the chimpanzees' spontaneous gestures.
A. change
B. abort
C. shorten
D. enhance

[单项选择]

Passage Two Country music is an American popular-music style. In its current form, country music is a combination of two separate musical traditions: the styles of the Southeastern states and the music of the Southwest, especially Texas. Both styles influenced and were influenced by the blues and by the black rural dance music. The first country artists to be widely known achieved popularity in the late 1920s. The music of these performers was heard throughout tile south during the 1920s and 30s on radio programs. By the 1950s, country music had become a significant force in pop music. Regular appearances on the radio show made stars of many performers. The singer-songwriter Hank Williams wrote four million-seller songs in 1950, seven in 1951, and four more in 1953. By the 1970s, "some country musicians began combining country music with electric instruments, creating a country rock sound.

Electric instruments add to country music a style of （）
A. rock music
B. blues
C. black music
D. Southern music

[单项选择]Han Meimei ______ two American friends.

[单项选择]Over the last two decades，a new trend in American education has developed．
A. 在过去二十四年中，美国的教育界出现了一个新的口号。
B. 在过去二十年，在美国，教育界已焕然一新。
C. 在过去二十四年中，美国的教育出现了一个新的势头。
D. 在过去二十年，美国教育界出现了一个新趋势。