推荐：托福05年1月份部分语法真题
16. In the eighteenth century, quilting became a common technique in the American colonies for make of coverlets sewed in floral and geometric designs.17. The computer’s complex circuitry is miniaturized inside silicon chips, wafer-thin silicon crystals with circuits electronic etched onto them. 18. Centrifuges are widely use to separate liquids having different densities or to separate solids from liquids.19. There is ample evidence of that about 700 million years ago, glaciers reached well into what are now tropical regions.20. Mathematics is a tool that can help solve problems and lead to new developments in other fields, such as space flight, medical, and architecture.
21. The meter of the English poetry is determined by accented syllables rather by the quantities of vowels. 22. In the nineteenth-century United States, it was assumed that growth, change, and progressive derived mainly from individual effort and competition. 23. Swelling of the mucous membranes, cause by irritants, allergies, or infections, may block the nasal passages, making breathing difficult. 24. The spearmint plant, which grows to about three feet height, has stalkless leaves and lax, tapering spikes of flowers that are usually pink or lilac. 25. Germ theory defined precisely how diseases affect tissues and described their passage from one living creature to other.
26. The rings of the planet Uranus consists primary of boulder-sized chunks of dark matter, averaging about one meter in diameter.27. George Inness’ rending of distance and atmosphere raised his art above the ordinarily realism of