1、1. Typical of the grassland dwellers of the continent is the American antelope, or pronghorn。1.美洲羚羊，或稱叉角羚，是該大陸典型的草原動物。2. Of the millions who sawHaleys comet in 1986, how many people will live long enough to see itreturn in the twenty-first century。2. 1986年看見哈雷慧星的千百萬人當(dāng)中，有多少人能夠長壽到足以目睹它在二十一世紀的回歸呢？3. An

2、thropologists have discovered that fear, happiness, sadness, and surprise are universally reflected in facial expressions。3.人類學(xué)家們已經(jīng)發(fā)現(xiàn)，恐懼，快樂，悲傷和驚奇都會行之于色，這在全人類是共通的。4. Because of its irritating effect on humans, the use of phenol as a general antiseptic has been largely discontinued。4.由于苯酚對*帶有刺激性作用，它基本

3、上已不再被當(dāng)作常用的防腐劑了。5. In group to remain inexistence, a profit-making organization must, in the long run, producesomething consumers consider useful or desirable。5.任何盈利組織若要生存，最終都必須生產(chǎn)出消費者可用或需要的產(chǎn)品。6. The greater thepopulation there is in a locality, the greater the need there is forwater, transportation,

4、and disposal of refuse。6.一個地方的人口越多，其對水，交通和垃圾處理的需求就會越大。7. It is more difficult towrite simply, directly, and effectively than to employ flowery butvague expressions that only obscure ones meaning。7.簡明，直接，有力的寫作難于花哨，含混而意義模糊的表達。8. With modern officesbecoming more mechanized, designers are attempting to

5、personalize themwith warmer, less severe interiors。8.隨著現(xiàn)代辦公室的日益自動化，設(shè)計師們正試圖利用較為溫暖而不太嚴肅的內(nèi)部裝飾來使其具有親切感。9. The difference between libel and slander is that libel is printed while slander is spoken。9.誹謗和流言的區(qū)別在于前者是書面的，而后者是口頭的。10. The knee is the joints where the thigh bone meets the large bone of the lower

6、 leg。10.膝蓋是大腿骨和小腿脛的連接處。11. Acids are chemicalcompounds that, in water solution, have a sharp taste, a corrosiveaction on metals, and the ability to turn certain blue vegetable dyesred。11.酸是一種化合物，它在溶于水時具有強烈的氣味和對金屬的腐蝕性，并且能夠使某些藍色植物染料變紅。12. Billie Holidays reputation as a great jazz-blues singer rests o

7、n her ability to give emotional depth to her songs。12. Billie Holidays作為一個爵士布魯斯樂杰出歌手的名聲建立在能夠賦予歌曲感情深度的能力。13. Essentially, a theory is an abstract, symbolic representation of what is conceived to be reality。13.理論在本質(zhì)上是對認識了的現(xiàn)實的一種抽象和符號化的表達。14. Long before children areable to speak or understand a languag

8、e, they communicate through facialexpressions and by making noises。14.兒童在能說或能聽懂語言之前，很久就會通過面部表情和靠發(fā)出噪聲來與人交流了。15. Thanks to modern irrigation, crops now grow abundantly in areas where once nothing but cacti and sagebrush could live。15.受當(dāng)代灌溉(技術(shù)設(shè)施)之賜，農(nóng)作物在原來只有仙人掌和蕎屬科植物才能生存的地方旺盛地生長。16. The development of m

9、echanical timepieces spurred the search for more accurate sundials with which to regulate them。16.機械計時器的發(fā)展促使人們尋求更精確的日晷，以便校準機械計時器。17. Anthropology is ascience in that anthropologists use a rigorous set of methods andtechniques to document observations that can be checked by others。17.人類學(xué)是一門科學(xué)，因為人類學(xué)家采

10、用一整套強有力的方法和技術(shù)來記錄觀測結(jié)果，而這樣記錄下來的觀測結(jié)果是供他人核查的。18. Fungi are important inthe process of decay, which returns ingredients to the soil, enhancessoil fertility, and decomposes animal debris。18.真菌在腐化過程中十分重要，而腐化過程將化學(xué)物質(zhì)回饋于土壤，提高其肥力，并分解動物糞便。19. When it is struck, a tuning fork produces an almost pure tone, retain

11、ing its pitch over a long period of time。19.音叉被敲擊時，產(chǎn)生幾乎純質(zhì)的音調(diào)，其音量經(jīng)久不衰。20. Although pecans are mostplentiful in the southeastern part of the United States, they are foundas far north as Ohio and Illinois。20.雖然美洲山河桃樹最集中于美國的東南部，但是在北至俄亥俄州及伊利諾州也能看見它們。21. Eliminating problems by transferring the blame to o

12、thers is often called scape-goating。21.用怪罪別人的辦法來解決問題通常被稱為尋找替罪羊。22. The chief foods eaten in any country depend largely on what grows best in its climate and soil。22.一個國家的主要食物是什么，大體取決于什么作物在其天氣和土壤條件下生長得最好。23. Over a very large numberof trials, the probability of an events occurring is equal to theprob

13、ability that it will not occur。23.在大量的實驗中，某一事件發(fā)生的幾率等于它不發(fā)生的幾率。24. Most substance contractwhen they freeze so that the density of a substances solid is higherthan the density of its liquid。24.大多數(shù)物質(zhì)遇冷收縮，所以它們的密度在固態(tài)時高于液態(tài)。25. The mechanism by which brain cells store memories is not clearly understood。25.大

14、腦細胞儲存記憶的機理并不為人明白。26. By the middle of thetwentieth century, painters and sculptors in the United States hadbegun to exert a great worldwide influence over art。26.到了二十一世紀中葉，美國畫家和雕塑家開始在世界范圍內(nèi)對藝術(shù)產(chǎn)生重大影響。27. In the eastern part of New Jersey lies the city of Elizabeth, a major shipping and manufacturing c

15、enter。27.伊麗莎白市，一個重要的航運和制造業(yè)中心，坐落于新澤西州的東部。28. Elizabeth Blackwell, the first woman medical doctor in the United States, founded the New YorkInfirmary, an institution that has always had a completely femalemedical staff。28. Elizabeth Blackwell，美國第一個女醫(yī)生，創(chuàng)建了員工一直為女性的紐約診所。29. Alexander Graham Bellonce told

16、 his family that he would rather be remembered as a teacher ofthe deaf than as the inventor of the telephone。29. Alexander Graham Bell曾告訴家人，他更愿意讓后人記住他是聾子的老師，而非電話的發(fā)明者。30. Because its leaves remain green long after being picked, rosemary became associated with the idea of remembrance。30.采摘下的迷迭香樹葉常綠不衰，

17、因此人們把迷迭香樹與懷念聯(lián)系在一起。31. Although apparently rigid, bones exhibit a degree of elasticity that enables the skeleton to withstand considerable impact。31.骨頭看起來是脆硬的，但它也有一定的彈性，使得骨骼能夠承受相當(dāng)?shù)拇驌簟?2. That xenon could not FORM chemical compounds was once believed by scientists。32.科學(xué)家曾相信：氙氣是不能形成化合物的。33. Research in

18、to thedynamics of storms is directed toward improving the ability to predictthese events and thus to minimize damage and avoid loss of life.33.對風(fēng)暴動力學(xué)的研究是為了提高風(fēng)暴預(yù)測從而減少損失，避免人員傷亡。34. The elimination ofinflation would ensure that the amount of money used in repaying a loanwould have the same value as the

19、 amount of money borrowed.34.消除通貨膨脹應(yīng)確保還貸的錢應(yīng)與所貸款的價值相同。35. Futurism, an earlytwentieth-century movement in art, rejected all traditions andattempted to glorify contemporary life by emphasizing the machine andmotion。35.未來主義，二十世紀早期的一個藝術(shù)思潮，拒絕一切傳統(tǒng)，試圖通過強調(diào)機械和動態(tài)來美化生活。36. One of the wildest andmost inaccessib

20、le parts of the United States is the Everglades wherewildlife is abundant and largely protected。36. Everglades是美國境內(nèi)最為荒涼和人跡罕至的地區(qū)之一，此處有大量的野生動植物而且大多受(法律)保護。37. Lucretia Mottsinfluence was so significant that she has been credited by someauthorities as the originator of feminism in the United States。37.

21、 Lucretia Motts的影響巨大，所以一些權(quán)威部門認定她為美國女權(quán)運動的創(chuàng)始人。38. The activities of the international marketing researcher are frequently much broader than those of the domestic marketer。38.國際市場研究者的活動范圍常常較國內(nèi)市場研究者廣闊。39. The continental dividerefers to an imaginary line in the North American Rockies that dividesthe wat

22、ers flowing into the Atlantic Ocean from those flowing into thePacific。39.大陸分水嶺是指北美洛磯山脈上的一道想象線，該線把大西洋流域和太平洋流域區(qū)分開來。40. Studies of thegravity field of the Earth indicate that its crust and mantle yieldwhen unusual weight is placed on them。40.對地球引力的研究表明，在不尋常的負荷之下地殼和地幔會發(fā)生位移。41. The annual worth of Utahs

23、 manufacturing is greater than that of its mining and farming combined。41.猶他州制造業(yè)的年產(chǎn)值大于其工業(yè)和農(nóng)業(yè)的總和。42. The wallflower is so called because its weak stems often grow on walls and along stony cliffs for support。42.墻花之所以叫墻花，是因為其脆弱的枝干經(jīng)常要靠墻壁或順石崖生長，以便有所依附。43. It is the interactionbetween people, rather than

24、the events that occur in their lives, thatis the main focus of social psychology。43.社會心理學(xué)的主要焦點是人與人之間的交往，而不是他們各自生活中的事件。44. No social crusadearoused Elizabeth Williams enthusiasm more than the expansion ofeducational facilities for immigrants to the United States。44.給美國的新移民增加教育設(shè)施比任何社會運動都更多的激發(fā)了Elizabet

25、h Williams的熱情。45. Quails typically haveshort rounded wings that enable them to spring into full flightinstantly when disturbed in their hiding places。45.典型的鵪鶉都長有短而圓的翅膀，憑此他們可以在受驚時一躍而起，飛離它們的躲藏地。46. According toanthropologists, the earliest ancestors of humans that stood uprightresembled chimpanzees fa

26、cially, with sloping foreheads and protrudingbrows。46.根據(jù)人類學(xué)家的說法，直立行走的人的鼻祖面部輪廓與黑猩猩相似，額頭后傾，眉毛突出。47. Not until 1866 was the fully successful transatlantic cable finally laid。47.直到1866年第一條橫跨大西洋的電纜才完全成功地架通。48. In his writing, JohnCrowe Ransom describes what he considers the spiritual barrenness ofsociety

27、 brought about by science and technology。48. John Crowe Ransom在他的著作中描述了他認為是由科學(xué)技術(shù)給社會帶來的精神貧困。49. Children with parentswhose guidance is firm, consistent, and rational are inclined topossess high levels of self-confidence。49.父母的教導(dǎo)如果堅定，始終如一和理性，孩子就有可能充滿自信。50. The ancient Hopewellpeople of North America p

28、robably cultivated corn and other crops, buthunting and gathering were still of critical importance in theireconomy。50.北美遠古的Hopewell人很可能種植了玉米和其他農(nóng)作物，但打獵和采集對他們的經(jīng)濟貿(mào)易仍是至關(guān)重要的。51. Using many symbols makes it possible to put a large amount of inFORMation on a single map。51.使用多種多樣的符號可以在一張地圖里放進大量的信息。52. Anarchism is a termdescribing a cluster of doctrines and attitudes whose principal unitingfeature is the belief that government is both harmful and unnecessary。52.無政府主義這個詞描述的是一堆理論和態(tài)度，它們的主要共同點在于相信政府是有害的，沒有必要的。53. Probably no man had moreeffect on the daily