1、【精品文檔】如有侵權，請聯系網站刪除，僅供學習與交流1.2.3.4.5.6.7. 北外團體培訓托福語法1章3章.精品文檔.8. Amber comes chiefly from the resins of pine trees that grew in Northern Europe millions of years ago.9. An adult human must take eight steps to go as far as a giraffe does in one stride.10. When the focus of a pair of binoculars is adju

2、sted, distant objects can be brought into view.11. If an act is rewarded many times, immediately and with strong reinforces, it will rapidly become a habit.12. Giant Pandas resemble bears in shape and in the slow, clumsy way they walk.13. It is the temperature at which air holds as much water vapor

3、as it can is called the dew point.14. In the fourteenth century, it was discovered that glass coated with silver nitrate would turn yellow when fired in an oven.15. When recurring fear is out of proportion to any real danger, it is called a phobia.16. Many modern photographers attempt to manipulate

4、elements of photography other than light in their photographs.17. Abraham Lincoln insisted that democracy be based not just on mere opinion but on moral purpose.18. World trade patterns are indicative of the important economic issues what confront the world today.19. In the symphony orchestra, bass

5、drums are not so prevalent as kettle drums.20. So numerous were the inventions devised to lessen the drudgery of washing clothes that the origin of the washing machine is unclear.21. Of the thousands of varieties of bird species in North America, those that have bright red plumage, like the cardinal

6、, are most often designated as state bird.22. Organized as a territory in 1854 and admitted as a state in 1861, Kansas is at the geographical center of the United States.23. Before pioneers cleared the land for farms, cities, and roads, forests covered about 40 percent of what is now the state of Il

7、linois.24. The sea chantey, a type of folk music, not only described the pleasures of lives ashore, but (also) the harsh conditions of like aboard ship.25. Mount Rushmore National Memorial in South Dakota has the heads of four presidents of the United States carved into its face.26. Nest buildi

8、ng is much less common among mammals than among birds.27. The Awakening, a novel by Kate Chopin, shocked readers and caused a storm of criticism28. The homes created by the legendary architect Frank Lloyd Wright are still viewed as unique, innovative, and valuable.29. Geologists find it useful to id

9、entify fossils in a rock sample because certain assemblages of species are characteristic of specific geologic time periods.30. Many poets enhance their work by creating a contrast between realism and symbolism in a given poem.31. Most countries depend to little extent on cereal imports to augment t

10、heir own crops.32. The fragrant leaves of the laurel plant are sold commercially as bay leaves and are used for seasoning food.33. In every society there are norms that tell individuals how they are supposed to behave.34. An erupting volcano or an earthquake sometimes affects the feature of the surr

11、ounding region and can even cause lakes to disappear.35. Most tree frogs change color to harmonize with their background.36. Due to the refraction of light rays, it is impossible for the naked eye to determine the exact location of star close to the horizon.37. Modern poets have experimented with po

12、etic devices such as alliteration and assonance.38. Marian Anderson in addition to gaining fame as a concert soloist also served as a United States delegate to the United Nations.39. Good dental hygiene and a proper diet are necessary for the maintenance of sound teeth.40. Rice adapts better than ot

13、her grain crops to areas with unfavorable saline, alkaline, or acid sulfate soils.41. Jeanette Rankin, pacifist and lifetime crusader for social and electoral reform, was the first woman to be a member of the United States Congress.42. In the United States, Maryland ranks second only to Virginia as

14、an oyster-producing state.43. After a heavy rain, a rainbow may spread all the way across the sky, its two ends seeming to rest on the Earth.44. The Statue of Liberty is one of the most celebrated examples of repousse work, a process of hammering metal inside a mold.Known, noted, notorious, famous of 45. Observation of the Sun, Moon, and stars has enabled humans to determine both the seasons and the time of a day.+for 表示原因； +as 表示行為； +to 對來說human是可數名詞,a human或 a human being指一個人,復數形式是 humans,也可以說