13.Scientists believe the first inhabitants of the Americas arrived by crossing the land bridge that connected Siberia and _____ more than 10,000years ago.

(A)this is Alaska now

(B)Alaska is now

(C)is now Alaska

(D)what is now Alaska.

14.Fibers of hair and wool are not continuous and must normally be spun into thread _____ woven into textile fabrics.

(A)as are they

(B)when to be

(C)that they are

(D)if they are to be

15.Margaret Brent,because of her skill in managing estates,became _____ largest landholders in colonial Maryland.

(A)what the

(B)one of the

(C)who the

(D)the one that

16.Eleanor Roosevelt set

the standard against which the wives

of all

United States

A B C

Presidents since have evaluated

.

D

17.The Armory Show,held

in New York in 1913,was a

important exhibition

of

A B C

modern

European art.

D

18.Ripe fruit is often stored in a place who contains much carbon dioxide so that the

A B C

fruit will not decay too rapidly.

D

19.In 1852,Massachusetts passed a law requiring all children from four to eighteen

A B C

years of old to attend school.

D

20.The main purpose of classifying animals is to show the most probable

A B

evolutionary relationship of the different species to each another.

C D

21.Matthew C.Perry,a United States naval commander,gained fame not in war and

A B C

through diplomacy.

D

22.One of the most impressive collections of nineteenth-century European paintings

A B

in the United States can be found to the Philadelphia Museum of Art.

C D

23.Three of every four migrating water birds in North America visits the Gulf of

A B C

Mexico's winter wetlands.

D

24.Charleston,West Virginia,was named for Charles Clendenin,who son George

A B

acquired land at the junction of the Elk and Kanawha rivers in 1787.

C D

25.Financier Andrew Mellon donated most of his magnificent art collection to the

A B C

National Gallery of Art,where it is now locating.

D

26.Soil temperatures in Death Valley,California,near the Nevada border,have been

A B C

known to reach 90of degrees Celsius.

D

27.When the Sun,Moon,and Earth are alignment and the Moon crosses the Earth's

A B C

orbital plane,a solar eclipse occurs.

D

28.Mary Cassatt's paintings of mothers and children are known for its fine linear

A B

rhythm,simple modelings,and harmonies of clear color.

C D

29.Plants synthesize carbohydrates from water and carbon dioxide with the aid of

A B

energy is derived from sunlight.

C D

30.The best American popular music balances a powerful emotions of youth with

A B C

tenderness,grace,and wit.

D

31.In the nineteenth century,women used quilts to inscribe their responses to social,

A B C

economic,and politics issues.

D

32.Fossils in 500-million-year-old rocks demonstrate that life forms in the Cambrian

A B

period were mostly marine animals capability of secreting calcium to form shells.

C D

33.Rainbows in the shape of complete circles are sometimes seen from airplanes

A B

because they are not cutting off by the horizon.

C D

34.Hot at the equator causes the air to expand,rise,and flow toward the poles.

A B C D

35.Although research has been ongoing since 1930,the existence of ESP-perception

A B

and communication without the use of sight,hear,taste,touch,or smell -is still disputed.C D

36.As many as 50percent of the income from motion pictures produced in the United

A B

States comes from marketing the films abroad.

C D

37.Sleep is controlled by the brain and associated by characteristic breathing rhythms.A B C D

33.The walls around the city of Quebec,which was originally a fort military,still

A B

stand,making Quebec the only walled city in North America.

C D

34.The manufacture of automobile was extremely expensive until assembly-line

A B C

techniques made them cheaper to produce.

D

35.The ballad is characterized by informal diction,by a narrative largely dependent

A B

on action and dialogue,by thematic intense,and by stress on repetition.

C D