托福

此套题共有30题,完卷时间为45分钟 你的考试时间还有:44:59

Part 1 25 mins

1. ____ in the United States began in the eighteenth century, when individuals, merchants, and colonial governments loaned money to one another.

2. The trumpet is ___ of most dance and jazz bands


3. Most whole milk undergoes homogenization, ___ hot milk is pumped through valves to break up and permanently disperse the fat globules.

4. In 1865 the astronomer Maria Mitchell became ____ appointed to the faculty of Vassar College.


5. George Washington Carver___ international fame for revolutionizing agriculture research in the southern United States during the early twentieth century.

6. Elementary schools in the United States provide formal education____ arithmetic, science, social science, and communication skills that including reading, writing, spelling, and speaking.


7. ____ land and money enabled construction of the union pacific railroad to begin from Council Bluffs, Iowa, in 1865.


8. Green plants combine ___ with water and carbon dioxide to make food.


9.From the archeologist's perspective, understanding the past is vitally important and requires ____ of earlier culture.


10. The Texas Legislature selected Vassar Miller ___ in 1982, and again in 1988.


11. The distinguishing feature of a fluid, in contrast to a solid, is the ease____.


12. Many scientists believe ___ as a result of a collision between the newly formed earth and a large asteroid.


13. Willa Cather, ____, gained recognition for her books concerning the American frontier.


14. Learning that takes place in infancy provides the ___ for the eventual transformation of a child into an adult.


In 1989 Carret Hongo was chosen as ___ for the Pulitzer Prize in poetry.




16. It was novelist and poet ____ in 1968 founded Jackson State University's Institute for the Stud of the History, Life, and Culture of Black People.




17.In western North America, ____ form the Great Divide, which separates the areas from which waters flow either eastward to the Atlantic or westward to the pacific.


18. The Hawaiian alphabet, introduced by missionaries in the 1820's, ____ and only seven consonants.


19.Working like a telescope, ____ the size of objects at great distances.


20. The early years of the United States government were characterized by a debate concerning ____ or individual states should have more power.


21. Franklin Roosevelt's New Deal Program included ____ designed to provide relief and counteract the effects of the economic depression that had begun in 1929.


22. By means of various types of wind tunnels, ___ simulate most of the flight conditions to which an airplane is subjected.


23.Not until 1931 ____ the official anthem of the United States.


Part 2 20 mins

Passage 1

The transition from forest to treeless tundra on a mountain slope is often a dramatic one. Within a vertical distance of just a few tens of meters, trees disappear as a life-form and are replaced by low shrubs, herbs, and grasses. This rapid zone of transition is called the upper timberline or tree line. In many semiarid areas there is also a lower timberline where the forest passes into steppe or desert at its lower edge, usually because of a lack of moisture.

24.The word "dramatic" in the passage is closest in meaning to______________




25. Where is the lower timberline mentioned in paragraph 1 likely to be found?




26. Which of the following can be inferred from this paragraph about both the upper and lower timberlines?




Passage 2

At the upper timberline the trees begin to become twisted and deformed. This is particularly true for trees in the middle and upper latitudes, which tend to attain greater heights on ridges, whereas in the tropics the trees reach their greater heights in the valleys. This is because middle- and upper- latitude timberlines are strongly influenced by the duration and depth of the snow cover. As the snow is deeper and lasts longer in the valleys, trees tend to attain greater heights on the ridges, even though they are more exposed to high-velocity winds and poor, thin soils there. In the tropics, the valleys appear to be more favorable because they are less prone to dry out, they have less frost, and they have deeper soils.

27.The word "attain" in the passage is closest in meaning to______________




28.The word "they" in the passage refers to______________




29.The word "prone" in the passage is closest in meaning to______________




30. According to paragraph 3, which of the following is true of trees in the middle and upper latitudes?




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姓 名: 李依阳
考前成绩: 80
考试成绩: 104
所学课程: 托福VIP班
姓 名: 刘维思
考试成绩: 8
所学课程: 雅思强化VIP
单项分数: 听8.5 阅9 写作7...