Đề ngữ pháp Toefl itp 1993-08

1.There is evidence that prehistoric humans used fire — 400,000 B. C.

2.In the late 1800’s Ellen Richards, began work in the new field of “sanitary science” which was concerned with waste removal, water purification and —.

3.— red clover, high in protein content, is an extremely important leguminous hay and pasture plant of the eastern United States.

4.The topology of Mars is more — than that of any other planet.

5.Ostriches are — of living birds, attaining a height from crown to foot of about 2.4 meters and a weight of up to 136 kilograms.

6.The glaciers that reached the Pacific Coast were valley glaciers, and between those tongues of ice — that allowed the original forests to survive.

7.— orbits the Sun, Uranus rotates on its axis, an imaginary line through its center.

8.— duties are placed on commodities according to their value.

9.— about individuals who really existed and things that actually happened.

10.— matter in one form is transmuted to another form, a phase change is said to have taken place.

11.Noise, in the technical sense, implies a random chaotic disturbance —.

12.During the late 1850’s the question of the best route for the overland mail to California was — in the West.

13.In his book, Social Theory and Social Structure, sociologist Robert Merton explored — in ways that society considers abnormal.

14.— wooden buildings helps to protect them from damage due to weather.

15.Carbohydrates are the most abundant and — food sources of energy.

16.The Wright brother’s Flyer, who they built and flew in 1903, became world’s first successful airplane.

17.Astronauts circling the Earth may get to seen sixteen sunrises and sixteen sunsets every “day”.

18.The clasmosaur, a giant prehistoric sea reptile with Uerce-looking jaws and flippers, had a muscular neck that accounted for much than half its length.

19.The sonometer is instrument used to study the mathematical relations of harmonic tones.

20.In the 1800’s daguerreotypes were used a greatest deal, especially for portraits.

21.Vervet mons have a well-developed systems vocal communication.

22.The invention of a cotton gin by Eit Whitney in 1793 made cotton yarn more economy than linen yarn.

23.Scientists has found that the saliva of the octopus contains a substance that functions as a powerful heart stimulant.

24.The katydid, a type of grasshopper, is actively at night and rests motionless amid foliage during the day.

25.Soap is used as a lubricant in making tiny wires for electrical appliances such television sets and telephones.

26.Although the art of sand painting originated with neighboring Pueblo Indians, the Navajo Indians have refined and richly reinterpreted they symbology and execution.

27.In 1967, Canada’s year centennial, one and a quarter million people from all over the world visited Parliament Hill in Ottawa.

28.The General Sherman tree, a giant sequoia in California, has grown to be the world’s largest plant at approximate 272 feet tall.

29.Since the turn of the century, the number of Native Americans living in Canada is increased.

30.Eleanor Roosevelt played a leading part in women’s organizations, and she was active in encouraging youth movements, in promoting consumer welfare, and to work for civil rights.

31.Nutrients are substances, neither occurring naturally or in synthetic form, that are necessary for maintenance of the normal functioning of organisms.

32.Even in an age of experimentation and departures from convention, the sonata form remain among the most vital means of musical expression.

33.Researchers have found many ways of treating paper so that it will be strong, fireproof, and resistance to liquids and acids.

34.Because its body is supported by water, the blue whale can grow to a size considerable large than any land mammal alive today.

35.Langston Hughes, a prolific writer of the 1920’s was concerned with the depicting the experience of urban Black people in the United States.

36.During eclipses of the Sun, the Ojibwa Indians of North America shot flaming arrows inside the sky to rekindle the light.

37.From 1892 to 1895, Alice Elvira Frecman was Dean of Women at the newly foundation University of Chicago.

38.Historical geology deals about data on the development of the Earth gathered from the study of rocks, which are analyzed to determine their age and composition.

39.Human being have thirty-thirty or thirty-four vertebrae, but a snake may have as many as three hundred.

40.Parrots have heavily bodies and exceedingly strong legs.