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补全短文(第46～50题，每题2分，共10分)
下面的短文有5处空白，短文后有6个句子，其中5个取自短文，请根据短文内容将其分别放回原有位置，以恢复文章原貌。
How Did She Conquer the Americans?
African-American talk show queen Oprah Winfrey is the world’s most powerful celebrity， according to Forbes magazine.______(46)
Winfrey， 51， draws 30 million viewers weekly in the United States. Her talk show reaches 112 countries. She earned US$225 million over the past 12 months to rank second in celebrity riches.
The annual Forbes list gives most weight to annual earnings.______(47)
“After 21 years， her exciting chat show still rules the airwaves. It created new celebrities and hundreds of millions of dollars in profits，” the magazine said.
Winfrey is most popular with her popular talk show “The Oprah Winfrey Show”。 She can always attract the superstars and let them open up to her intimate interviewing style.
Last month， American actor Tom Cruise， 42， surprised fans when he celebrated his new romance with 26-year-old actress Katie Holmes. He jumped up and down， shouting “I’m in love.” Only a few years ago， Cruise and his ex-wife Nicole Kidman appeared separately on the same show telling the news of their divorce______(48)
Winfrey’s approach appears to be simple. She is in pursuit of self-improvement and self-empowerment (自强)。 This has proved to be just what people， especially women， want.
Winfrey often talks about her personal secrets on her show. That pulls in viewers. For example， she revealed that she had been sexually abused as a child， and has spoken freely of her struggle with her weight.
Winfrey was born to a poor family in Mississippi in 1954______(49) At the age of 19， she became the youngest person and the first African*American woman to anchor (主持) a news programme.
Her success has not just been on the screen. Her media group includes a women’s TV network and websites for women.
Winfrey’s work has extended to social change. ______(50)
She testified before the US Senate to establish a national database of dangerous child abusers. President Bill Clinton later signed “Oprah Bill” into law.
A.But it also looks at the celebrity’s presence on the Internet and in the media
B.In 1991， she did a lot of work for the National Child Protection Act.
C.She was not a very successful woman
D.She began broadcasting while still at high school
E.It placed Winfrey at the top of its annual ranking of the 100 people last week.
F.The couple had been tight-lipped about their break-up.
完形填空(第51～65题，每题1分，共15分)
下面的短文有15处空白，请根据短文内容为每处空白确定1个最佳选项。
Solar Storm
At the end of October 2003， a sudden solar storm hit the earth. A.solar storm refers to the large amounts of charged particles released into space______(51)the solar energy increases. The release of the energy______(52) place along with the activity of the sunspots with a cycle of： 11 years. This time， the______(53) of the storm exceeded expectations.
This______(54) of intense solar storm was caused by the eruption of a solar flare (闪光) and the ejection (喷发) of the solar corona (日冠) on October 28， 2003. Large amounts of charged particles moved 150，000，000 kilometers through space toward the______(55) in 19 hours. They could affect aircraft roaming (漫游) in space.
The high-energy particles will______(56) some of the parts of an aircraft. They may also cause it to fail. High-energy particles can threaten the safety of an aircraft at a high orbit. If an aircraft orbits at a lower orbit， it is______(57)because it is under the protection of the earth’s magnetic field.
A solar storm not only affects aircraft but also is a______(58) to the environment and humans. The aerosphere and magnetic field of the earth can______(59) humans from ultraviolet radiation and X-rays. While most of the X-rays
are absorbed after they enter the aerosphere (大气层)， still a few can______(60) the ground.
The geomagnetic storm caused by this round of solar storm reaches its highest level on the two______(61) of the earth， which affects electricity supply of North America. Overexposure to______(62) threatens the health of passengers on planes flying over the Polar Regions. If we fly in the sky during such a solar storm， it______(63) we receive ten times the X-ray radiation. It’s really damaging.
Scientists say a solar eruption is like the sun sneezing， which will make the earth______(64) a cold. Though this natural force is irresistible， scientists can still______(65) its movement accurately by monitoring. Facing successive solar storms， humans can’t drop their guard
51
A.since
B.when
C.until
D.though
52
A.finds
B.adjusts
C.holds
D.takes
53
A.intensity
B.height
C.width
D.density
54
A.piece
B.part
C.round
D.set
55
A.star
B.earth
C.moon
D.sun
56
A.dominate
B.develop
C.damage
D.descend
57
A.safe
B.dangerous
C.comfortable
D.manageable
58
A.limit
B.cause
C.force
D.threat
59
A.separate
B.benefit
C.distinguish
D.protect
60
A.lose
B.reach
C.break
D.prepare
61
A.poles
B.mountains
C.rivers
D.lakes
62
A.light
B.storm
C.radiation
D.pressure
63
A.recommends
B.means
C.proposes
D.advises
64
A.turn
B.stop
C.become
D.catch
65
A.detect
B.start
C.experience
D.change
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