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　　TWO teams of astronomers using the Hubble Space Telescope and other instruments have found evidence(證據(jù))of a type of black hole that has never been seen before.

　　Roeland Van Der Marel of the Space Telescope Science Institute in Baltimore said last week his group has confirmed(證實) the existence of a midsized black hole in a cluster (group) of stars called M15, about 32,000 light years away.

　　Yan Der Marel said the black hole has about 4,000 times the mass of the sun, which makes it the smallest galactic(銀河的)black hole ever found.

　　Another group, led by Michael Rich of the University of California, Los Angeles, looked into a cluster of stars called GI and found a black hole that has about. 20,000 times the mass of the sun. It is some 2.2 million light years away.

　　Using the motion of stars within the clusters, the astronomers could determine the mass of the star groups and of the black holes. They found that the ratio(rate) of the mass of black holes to the mass of globular (球狀的) clusters (smaller than a galaxy ) was precisely (精確地) the same as the ratio between supermassive (超質(zhì)地的) black holes and galaxies. This suggests a neat, uniform(一致的) universal truth that applies the same mass ratio to black holes of all sizes everywhere, explains Karl Gebhardt of the University of Texas, a member of the G1 team.

　　The new discovery may help astronomers answer a basic question: Which came first. galaxies or black holes? Both theories have been proposed and finding intermediatesized(中等規(guī)模的) black holes may help answer that question.

1．The astronomers from ________ American institutes and universities discovered the black holes.

[　　]

A．two
B．three
C．four
D．five

2．Where do the black holes exist?

[　　]

A．In a cluster of stars called M15.

B．In a clusters of stars called G1

C．In clusters of stars of the galaxy.

D．Between the sun and the earth.

3．Which of the following is NOT true?

[　　]

A．The scientists determined the mass of the black holes using the motion of stars within the clusters.

B．Midsized black holes can give evidence for the answer to“Which came first, galaxies or black holes”.

C．The ratio of the mass of black holes of all sizes is the same.

D．The ratio of the mass between supermassive black holes and galaxies is larger than that between black holes to the mass of globular clusters.

4．Which is the most proper title of the article?

[　　]

A．Search for the origin of black holes

B．More black holes are discovered

C．Which came first, galaxies or black holes?

D．Search for more black holes

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科目：高中英語 來源：設(shè)計必修二英語北師版 北師版 題型：050

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　　Israeli paintings－Israeli artist Menashe Kadishman will hold a personal show named “Flock of Sheep” from November 26 to December 20 at the China National Art Museum．On show are 550 colorful oil paintings of sheep heads．

　　His works have been on show in the Metropolitan Museum in New York and Tate Gallery in London over the past 30 years．

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　　Tel：6401-2252

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　　Place：Beijing Concert Hall, 1 Beixinhua Street．

　　Tel：6605-5812

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[　　]

A．

China National Art Museum

B．

Beizhan Theatre

C．

Beijing Concert Hall

D．

1 Wusi Street

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[　　]

A．

deer

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birds

C．

sheep

D．

flowers

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[　　]

A．

The folk concert will last three days．

B．

The ballet “The Nutcracker” will be put on once．

C．

The Israeli paintings will be on show for a month．

D．

China National Art Museum lies in Xicheng District．

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If you dial the telephone number 6605-3388 on Dec．8, you can ________．

[　　]

A．

go to the folk concert

B．

visit the Art Museum

C．

watch the ballet

D．

none of the above

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科目：高中英語 來源：湖北省黃岡中學(xué)2012屆高三上學(xué)期期中考試英語試題 題型：050

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　　Below is a web page from http：//www．tvguide．com/．

　　Tonight's TV Hot List：Sunday January 31, 2010

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B．

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C．

Surviving Survivor

D．

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[　　]

A．

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A．

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B．

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C．

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The above programs ________．

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科目：高中英語 來源：0103 月考題 題型：閱讀理解

閱讀理解。
     CBC is a famous air company which has over twenty planes carrying passengers and goods, flying
along 12 fixed lines all over the world. Its service is very good but some passengers are still not satisfied
with it and that is why in 1998 and 1999 the company received letters of complaints(投訴) from consumers
or passengers who pointed out over a dozen kinds of problems which are divided in groups in the following
table. This division is called Category. Problems that appear when the plane is flying are Flight problems.
Those about passengers' things carried by the plane are Baggage problems. Customer service refers to
service work which passengers are not satisfied with. Over sales of seats are about the fact that more seats
are sold and as a result the plane is too crowded to be safe. Refund problems appear when passengers fail
to receive the money paid to them because of what they have lost. Fares are problems about the price of
tickets. Reservations are problems that appear when passengers could not get the tickets they have already
booked. Tours are problems about the passengers'traveling by air or hotel problems. Advertising is what the
passengers think about advertisement on the plane. Credit problems are about the use of credit cards. 　　
          ONSUMER COMPLAINTS RECEIVED BY THE CBC 　　
Category　　　　　　　　　　　　　　　　 1998　　　　1999 　　　　　　　　　　　　　　　　　　　　　                                                                       (percent)　 (percent) 　　
Flight problems…………………………………   20.0%　　　 22.1% 　　
Baggage …………………………………………  18.3%　 　　21.8% 　　
Customer service ………………………………   13.1%　　　 11.3% 　　
Over sales of seats ……………………………… 10.5%　 　　11.8% 　　
Refund problems ………………………………   10.1%　　　  8.1% 　　
Fares ……………………………………………   6.4%　　　   6.0% 　　
Reservations and ticketing ………………………  5.8%　　　   5.6% 　　
Tours ……………………………………………  3.3%　　　　2.3% 　　
Smoking …………………………………………  3.2%　　　   2.9% 　　
Advertising ………………………………………  1.2%　　　　1.1% 　　
Credit ……………………………………………  1.0%　　　   0.8% 　　
Special passengers ………………………………  0.9%　　　   0.9% 　　
Other ……………………………………………   6.2%　　　   5.3% 　　
Total　　　　　　　　　　 　　　　　　　   100.%　 　   100.%　 　　
Total Number of Complaints　　　 　　　        22,988　　　 13,278 49
1. About how many complaints concerning Credit were received by the CBC in 1998?
[     ]
A. 133 　　
B. 220 　　
C. 230 　　
D. 1,220
2. By about what percent did the total number of complaints decrease from 1998 to 1999?
[     ]
A. 40% 　　
B. 60% 　　
C. 75% 　　
D. 100%
3. Which of the following statements or sayings can be inferred from the table? 
    I. In 1998 and in 1999, complaints about Flight problems, Baggage, and Customer service together took
        more than 50 percent of all consumer complaints received by the CBC Company. 　
    II. The number of Special passenger complaints was unchanged from 1998 to 1999.
    III. From 1998 to 1999 the number of Flight problem complaints increased by more than two percent.
[     ]
A. I only 　　
B. II only 　　
C. I and II only 　　
D. I and III only

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