【正文】 改正：too → so翻譯參考：到1830年，美國的玻璃產(chǎn)業(yè)是如此的成熟以至于它不再需要依賴于進口的玻璃了。21. By 1830 the glass industry in the United States had bee too well established that the country no longer needed to depend on imported glass.答案：B分析：so …that為固定用法。20. Free radicals of oxygen, which mon byproducts of metabolic processes in the body, are capable of causing tissue damage.答案：A分析：which引導定語從句缺少謂語，A應(yīng)改為which are mon。19. Inflation, interest rates, and overall economic active can be governed by the United States Federal Reserve’s decision to adjust the supply of money tothe economy.答案：C分析：平行結(jié)構(gòu)，形容詞active應(yīng)改為名詞activity。18. The cork oak tree has a layer of cork several inches thickness that can be stripped every ten years.答案：B分析：名詞thickness應(yīng)改為形容詞thick。Digest應(yīng)改為digesting。16. Painters of the early twentieth century who were known primarily for they colorful landscapes, the Group of Seven changed is name to the Canadian Group of Painters in 1933.答案 ：C分析：應(yīng)改為their改正：they → their翻譯參考：作為20世紀初主要以多彩的風景畫著稱的畫家，7人組合在1933年把它的名字改為加拿大畫家組合。15. Cholesterol is present in large quantities in the nervous system, where ____ pound of myelin.(A) it a(B) a(C) being(D) it is a答案：D分析：空格前面的句子主謂賓俱全，后面where 引導的非限制性定語從句。13. Outbreaks of diseases in trees monly occur _____ stressed because of drought or other environmental factors.(A) as forests that bee(B) in forests bee(C) that bee forests(D) when forests bee答案：D分析：空格前句子已完整，空格處填狀語，D為正確答案；A中多了that；翻譯參考：當森林受到因為干旱或是其它環(huán)境的因素的威脅時,樹木的疾病就經(jīng)常爆發(fā)。12. Isabel Bishop was one of many American artists ___ by the government during the Depression years on various federal art projects.(A) employed(B) whose employment(C) to employ(D) had been employed答案：A分析：句子主謂賓俱全。B為正確答案。翻譯參考：美國西部的最大的河流之一，科羅拉多河，從科羅拉多流經(jīng)大約1,500里到墨西哥西北部。A 不應(yīng)有that；B 錯誤用法；C 主謂賓結(jié)構(gòu)翻譯參考： Charles Schulz的連環(huán)漫畫《花生》主要刻畫的是說起關(guān)于人生的話來，滑稽但是聰明的孩子。8. For the advertiser, one of the greatest appeals of radio is ____ an audience all day long.(A) that it has(B) that to have(C) to have it(D) having it答案：A分析：句子主謂俱全，空格處為賓語.A that引導賓語從句；B 錯誤用法；C 不定式結(jié)構(gòu)，但多了一個it；D 現(xiàn)在分詞結(jié)構(gòu)，多了it翻譯參考：對于登廣告的人來說，廣播一個最大的吸引力就是它有一個全天候的觀眾群。7. On attaining maximum size, ___ by drawing itself out and dividing into two daughter amoebas, each receiving identical nuclear materials.(A) the reproduction of the amoeba(B) the amoeba, which reproduces(C) reproducing the amoeba(D) the amoeba reproduced答案：D分析：空格前后為兩個分詞短語，因此整個句子缺少主語和謂語。A because of不能接句子；C despite為介詞，不接句子；D 不是轉(zhuǎn)折連詞。5. In eighteenthcentury North American, printed engravings provided____ rococo style.(A) the most manifestation widespread(B) manifestation widespread the most(C) the widespread manifestation most(D) the most widespread manifestation答案：D分析：關(guān)于most的用法,詞的順序是the + most + adj. + N，答案是D翻譯參考：在18世紀的北美，雕刻印刷術(shù)提供了最廣為流傳的顯示及過分修飾的風格。4. Lenses, _____, are used to correct imperfection in eyesight.(A) are the forms of glasses and contact lenses(B) in the form of glasses and contact lenses(C) glasses and contact lenses which form(D) glasses and contact lenses may be formed答案：B分析：句子主謂賓俱全，空格處修飾lenses.A 為系表結(jié)構(gòu)，會造成整個句子多一個謂語；B 介詞短語，修飾lenses；C 錯誤用法；D 主謂結(jié)構(gòu)。翻譯參考：通過采用禁止在某一產(chǎn)業(yè)里競爭的法律，政府常常制造了公共服務(wù)壟斷。2. By _____ excluding petition from an industry, governments have often created public service monopolies.(A) they adopt laws(B) laws are adopted(C) adopting laws(D) having laws adopt答案：C分析：考察點為介詞by后接名詞或者動名詞，表示“通過…手段，達到…目的”。D，整個句子的主語是the gray scale，為單數(shù)， 應(yīng)該是and adds 才正確。A中added為過去分詞，一般作后置定語，此處語意不通。 feet翻譯參考：西弗吉尼亞州的平均海拔是大約1,500英尺。40. The average elevation of West Virginia is about 1,500 foot above sea level. 答案：C分析：foot應(yīng)為復(fù)數(shù)。改正：tribe224。 ones翻譯參考：宇航員用攝影技術(shù)和瞄準鏡去研究所有的明亮的星體很多模糊的星體。38. Astronomers use photography and sighting telescopes to study the motions of all of the bright stars and many of the faint one.答案：D分析：many of后接名詞復(fù)數(shù)。改正：from same 224。distant翻譯參考：到了1850年，來自遙遠海岸的和來自鄉(xiāng)村的移民引起了紐約市的人口的膨脹。 illness翻譯參考：研究公眾衛(wèi)生領(lǐng)域的醫(yī)生主要關(guān)心的是引起疾病的環(huán)境因素和怎么樣才能消除它們。 essential翻譯參考：對于一個新生兒的免疫系統(tǒng)的正常地發(fā)展，胸腺的存在是必要的。34. For the immune system of a newborn mammal to develop properly, the presence of the thymus gland is essentially.答案：D分析：形容詞和副詞的誤用。strong enough。注意enough的正確用法是：形容詞+enough；enough+名詞。 establishing翻譯參考：當沿著大西洋沿岸的生活農(nóng)場最初建立以后，在北美的歐洲移民發(fā)展了海洋造船業(yè)。32. After first establishment subsistence farms along the Atlantic seaboard, European settlers in North America developed a maritime and shipbuilding industry.答案：A分析：逗號前面的部分做狀語，establishment應(yīng)為動詞，其主語是European settlers。relaxation。31. General anesthesia, which is usually used for major surgery, involves a plete loss of consciousness and a relaxed of the muscles.答案：C分析：名詞和形容詞誤用，relaxed是過去分詞做形容詞。serve。development of civilization翻譯參考：差不多在一萬年以前，人類的發(fā)現(xiàn)他們可以利用金屬礦產(chǎn)，這在文明發(fā)展史上是一個重要的里程碑。transmit翻譯參考：一種液體當它是純凈的時候或許是一種不好的導體，它常常被用來做易于導電的溶液。28. A liquid that might be a poor conductor when pure is often used to make solutions that readily transmits electricity.答案：D分析：that引導定語從句，solutions是復(fù)數(shù)形式，所以D應(yīng)改為transmit。has been shaped。翻譯參考：留聲機是第一個成功地獲得,保存和再生聲音的媒介。26. The phonograph record was the first successful medium for capturing, preservation and reproducing sound.答案：C分析：平行結(jié)構(gòu)改正：preservation224。25. The velocity of a river is controlled by the slope, the depth, and the tough of the riverbed.答案：D分析：平行結(jié)構(gòu).改正：tough224。 found/that are found翻譯參考：海豚是圓滑有力的水手，在所有的海域里都存在。24. Dolphins are sleek and powerful swimmers that found in all seas and unlike porpoises have well defined, beaklike snouts and conical teeth.答案：B分析：應(yīng)該是被動式。 cultures early of the genus Homo were generally distinguished by regular use of stone tools and by a hunting and gathering economy.答案：A分析：詞的順序錯誤，應(yīng)改為形容詞+名詞.改正：cultures early 224。改正：caused 224。22. In a microwave oven, radiation penetrates food and is then absorbed primarily by water molecules, caused heat to spread through the food.答案：C分析：cause之前，句子的結(jié)構(gòu)完整。改正：plan 224。plan是可數(shù)名詞，若根據(jù)句