41、The annual worth of Utah's manufacturing is greater than that of its mining and farming combined. 尤它州制造業(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. 墻花之所以叫墻花，是因?yàn)槠浯嗳醯闹Ω山?jīng)常要靠墻壁或順石崖生長(zhǎng)，以便有所依附。

43、It is the interaction between people，rather than the events that occur in their lives，that is the main focus of social psychology. 社會(huì)心理學(xué)的主要焦點(diǎn)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 crusade aroused Elizabeth Williams'enthusiasm more than the expansion of educational facilities for immigrants to the United States. 給美國(guó)的新移民增加教育設(shè)施比任何社會(huì)運(yùn)動(dòng)都更多的激發(fā)了Elizabeth Williams的熱情。

45、Quails typically have short rounded wings that enable them to spring into full flight instantly when disturbed in their hiding places. 典型的鵪鶉都長(zhǎng)有短而圓的翅膀，憑此他們可以在受驚時(shí)一躍而起，飛離它們的躲藏地。

46、According to anthropologists，the earliest ancestors of humans that stood upright resembled chimpanzees facially，with sloping foreheads and protruding brows. 根據(jù)人類(lèi)學(xué)家的說(shuō)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. 直到1866年第一條橫跨大西洋的電纜才完全成功的架通。

48、In his writing，John Crowe Ransom describes what he considers the spiritual barrenness of society brought about by science and technology. John Crowe Ransom在他的著作中描述了他認(rèn)為是由科學(xué)技術(shù)給社會(huì)帶來(lái)的精神貧困。

49、Children with parents whose guidance is firm，consistent，and rational are inclined to possess high levels of self-confidence. 父母的教導(dǎo)如果堅(jiān)定，始終如一和理性，孩子就有可能充滿自信。

50、The ancient Hopewell people of North America probably cultivated corn and other crops，but hunting and gathering were still of critical importance in their economy. 北美遠(yuǎn)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(duì)他們的經(jīng)濟(jì)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. 使用多種多樣的符號(hào)可以在一張地圖里放進(jìn)大量的信息。

52、Anarchism is a term describing a cluster of doctrines and attitudes whose principal uniting feature is the belief that government is both harmful and unnecessary. 無(wú)政府主義這個(gè)詞描述的是一堆理論和態(tài)度，它們的主要共同點(diǎn)在于相信政府是有害的，沒(méi)有必要的。

53、Probably no man had more effect on the daily lives of most people in the Untied States than did Henry Ford a pioneer in automobile production. 恐怕沒(méi)有誰(shuí)對(duì)大多數(shù)美國(guó)人的日常生活影響能超過(guò)汽車(chē)生產(chǎn)的先驅(qū)亨利·福特。

54、The use of well-chosen nonsense words makes possible the testing of many basic hypotheses in the field of language learning. 使用精心挑選的無(wú)意義詞匯，可以檢驗(yàn)語(yǔ)言學(xué)科里許多基本的假定。

55、The history of painting is a fascinating chain of events that probably began with the very first pictures ever made. 優(yōu)化歷史是由一連串的迷人事件組成，其源頭大概可以上溯到最早的圖畫(huà)。

56、Perfectly matched pearls，strung into a necklace，bring a far higher price than the same pearls told individually. 相互般配的珍珠，串成一條項(xiàng)鏈，就能賣(mài)到比單獨(dú)售出好得多的價(jià)錢(qián)。

57、During the eighteenth century，Little Turtle was chief of the Miami tribe whose territory became what is now Indiana and Ohio. 十八世紀(jì)時(shí)，“小烏龜”是邁阿密部落的酋長(zhǎng)，該部落的地盤(pán)就是今天的印第安那州和俄亥俄州。

58、Among almost seven hundred species of bamboo，some are fully grown at less than a foot high，while others can grow three feet in twenty-four hours. 在竹子的近七百個(gè)品種中，有的全長(zhǎng)成還不到一英尺，有的卻能在二十四小時(shí)內(nèi)長(zhǎng)出三英尺。

59、Before staring on a sea voyage，prudent navigators learn the sea charts，study the sailing directions，and memorize lighthouse locations to prepare themselves for any conditions they might encounter. 謹(jǐn)慎的航海員在出航前，會(huì)研究航向，記錄的燈塔的位置，以便對(duì)各種可能出現(xiàn)的情況做到有備無(wú)患。

60、Of all the economically important plants，palms have been the least studied. 在所有的經(jīng)濟(jì)作物中，棕櫚樹(shù)得到的研究最少。