Đề ngữ pháp Toefl itp 1999-10

1.Fingerprints form an unchangeable signature, and ______ for identification, despite

changes in the individual’s appearance or age.

2.Animals obtain their energy from _______ .

3.Liquid water has fewer hydrogen bonds than ice; so more molecules can occupy the same

space, making liquid water ______ than ice.

4.It is difficult for present-day readers ______Sister Carrie was withdrawn from

circulation at the turn of the century.

5.Historical linguists study ______ over time.

6.Tennis star Chris Evert, who retired from the game after eighteen years, perhaps _____

more than anyone to make women’s professional tennis a widely respected career.

7.The daytime _____ bright because the Earth’s atmosphere scatters sunlight.

8.Edward Hopper’s paintings portray the loneliness and isolation of the individuals _____.

9.Braille, _____ printing reading materials for use by people who are blind, consists

of a system of raised points or dots that are read by touch.

10.The art of landscape architecture is almost as old ______ of architecture itself.

11.The development of synthetic fibers after 1940 led to the production of new types

of fabrics _____ more durable and easier to care for.

12.Until the eighteenth century, charcoal was _____ used in blast furnaces, as well as in

glassmaking, blacksmithing, and metalworking.

13.Pure iron cannot be hardened by heating and cooling, as _____, because iron lacks the

necessary carbon.

14.Rapids and waterfalls, ______ along virtually all Massachusetts waterways, provided

power in colonial times for grist and saw mills and later for textile mills.

15.Airsickness is produced by a disturbance of the inner car, ______ psychogenic

factors, such as fear, also play a part.

16.A large collections of materials focused on Louisiana’s history and culture is provided by the Williams Reseach Center in New Orleans.

17.Mary Austin’s first book, The Land of little Rain, a description of desert life in the western United States, won she immediate fame in 1903.

18.The most abundant phosphate mineral, apatite, includes several type that vary in their content of fluorine, chlorine, or hydroxyl ions.

19.Having gained a reputation as a daring, intrepid journalist, Nellie Bly became the first female report assigned to the Eastern front during the First World War.

20.In 1862 Abraham Lincoln signed the Homestead Act, allows settlers 160 acres of free land after they had worked it for five years.

21.Alone with the other physical sciences, meteorology has developed in the past three centuries from myth and folklore to rigorous observation, computation, analyze.

22.In 1973 the United States armed forces were placed on an all-volunteer basis for a first time since 1984.

23.Because lions do not have exceptional speedy, they must rely on the element of surprise for the hunt.

24.The position of the earth’s magnetic poles is not constant but shows an appreciable change after year to year.

25.Grassland vegetation reduces competition for water among species by concentrates roots at different levels.

26.Like the giant reptiles, most lineages of organisms have eventually become extinct; still some exist that have changed very little in millions of year.

27.Demonstrations public are an effective means by which advocacy groups can bring inequalities to the attention of local, state and federal officials.

28.Methods used in preparing articles for an encyclopedia differs, depending on the length of the article.

29.Since the advent of rock music in the 1950’s the popular music of the United States has become a significant musical influence around world.

30.Cloud droplets and ice crystals first form on certain types of small particles of dust or another airborne materials.

31.Male fiddler crabs have huge claws that move back and forth similar violinists move their arms when playing the violin.

32.Daylight saving time came into useful in the United States in an effort to conserve electricity by having business hours correspond to the hours of natural daylight。

33.Almost every fruits and vegetables contain riboflavin; the richest sources are leafy green vegetables such as spinach, kale, or turnip greens.

34.Gold lends itself to the making of decorative articles because of its great resistant to corrosion and tarnish and its ease of working.

35.Ethics is the branch of philosophy that deals with the values of life in a coherent, systematic, and science manner.

36.Indiscriminately dumping of waste materials and inadequate sewage treatment are two serious causes of environmental pollution.

37.The builders of the variety ancient cliff ruins scattered throughout the canyons and mesas of the arid Southwest of the United States are known as the cliff dwellers.

38.A fragrant plant has tiny sacs that makes and stores the substances that give it a pleasant odor.

39.Nomadic hunter and gatherer societies have access to only a limited amount of food in an area and moved on when they have exhausted each locality.

40.Collagen, a strong rubbery protein, supports the earflaps and the tip of nose in humans.