1997年所做的全國(guó)范圍內(nèi)的調(diào)查顯示電視機(jī)、電冰箱、空調(diào)和洗衣機(jī)擁有量大幅升高。

　　267. History tells us that mankind has a tendency to repeat past mistakes .

　　歷史告訴我們?nèi)祟愑兄氐父厕H的趨勢(shì)。

　　268. We have amassed ample objective proof to show the urgent need for crisis intervention in suspected child abuse cases .

　　我們已經(jīng)積累了充足的客觀證據(jù)證明急需干涉可疑的虐待兒童的案件。

　　269. Unfortunately , available evidence fails to establish any direct link between smoking and cancer .

　　不幸的是，現(xiàn)有的證據(jù)不能證明抽煙和癌癥之間有直接的聯(lián)系。

　　270. Fortunately , mountains of reliable evidence proves the direct link between smoking and cancer beyond any shadow of the doubt .

　　慶幸的是，大量可靠的證據(jù)證明抽煙和癌癥有直接聯(lián)系是毫無(wú)疑問(wèn)的。

　　271. Television violence has contributed directly to rising crime , as evidenced by statistics showing a dramatic rise in copycat crimes .

　　數(shù)據(jù)顯示模仿的犯罪行為有大幅度的增加，這證明電視暴力是犯罪增加的一部分直接原因。

　　272. The introduction of adcance agronomic techniques has contributed greatly to the development of agriculture , as indicated by statistics showing increased output in each of the past five years .

　　數(shù)據(jù)顯示在過(guò)去的五年中，每一年的產(chǎn)量都有提高，這表明發(fā)達(dá)的農(nóng)業(yè)技術(shù)的引入對(duì)農(nóng)業(yè)發(fā)展起到了很大的作用。

　　273. While it may appear that the gap between rich and poor people is narrowing somewhat , recently released evidence suggests that the opposite is true .

　　貧富之間的差距看似有一定的縮小，但是最近發(fā)布的證據(jù)表明事實(shí)正好相反。

　　274. While attaining world peace remains within the realm of possibility , the prevailing trend revolves around regional conflicts and internal strife in many countries .

　　獲得世界和平是有可能的，但是普遍的趨勢(shì)是存在地區(qū)沖突和許多國(guó)家內(nèi)部的斗爭(zhēng)。

　　275. Although statistics are quite often far less reliable than one might wish , other reliable information allows one to closely approximate industrial output figures .

　　盡管數(shù)據(jù)經(jīng)常比人們希望的不可靠得多，但是，其他可靠的信息使人們能得到接近工業(yè)產(chǎn)量的數(shù)字。

　　276. Although random sampling used for many surveys fails to cover large segments of the population , the procedure nonetheless offers insight into voting and consumption patterns .

　　雖然許多調(diào)查所用的隨機(jī)取樣不能覆蓋大部分人口，但是這一過(guò)程使人們能更深刻地理解選舉和消費(fèi)的模式。

　　277. The need for more government services has proved to be the case time and again .

　　事實(shí)多次證明需要更多的政府服務(wù)工作。

　　278. The funny thing about marriage is that the newness soon wears off .

　　婚姻的一個(gè)可笑之處是新鮮感馬上就沒(méi)有了。

　　279. There are instances when one must abandon the tendency for self-prevention in order to assist a person in grave danger .

　　存在這樣的情況：為了幫助處于嚴(yán)重危險(xiǎn)中的人，一個(gè)人必需拋棄自保的傾向。

　　280. There are situations in which it's highly advisable for a person to control his/her temper and keep his/her mouth shut .

　　有些情況下，一個(gè)人控制住自己的脾氣并保持沉默是明智的。

　　281. Gone are the days when Chinese people could expect cradle to death support from the government .

　　中國(guó)人可以指望政府提供從出生到死亡的資助的日子已經(jīng)不復(fù)存在了。

　　282. The days when one could safely walk city streets at night are gone .

　　一個(gè)人可以在夜里安全地走在城市街道上的日子已經(jīng)過(guò)去了。

　　283. China's population almost doubled to 1.2 billion people during the 1955-1995 , according to the National Census Bureau .

　　根據(jù)全國(guó)人口普查局的數(shù)據(jù)，中國(guó)人口在1955年至1995年期間幾乎翻了一番，增加到12億。

　　284. A report by the Department of Education estimates that the student-teacher ratio in China is four times higher than in the United States .

　　教育部的一份報(bào)告估計(jì)中國(guó)的學(xué)生和老師的比例比美國(guó)高四倍。

　　285. Official figures released by the Ministry of Transportation show that motor vehicle fatalities have more than tripled since 1995 .

　　交通部公布的官方數(shù)據(jù)表明機(jī)動(dòng)車死亡事故從1995年起已經(jīng)翻了兩番多。

　　286. Women accounted for less than two percent of the total number of deputies to the National People's Congress in 1990 , compared with almost 12 percent in 1998 .

　　1990年，全國(guó)人民代表大會(huì)的婦女代表所占比例不到總?cè)藬?shù)的2%，1998年大約是12%。

　　287. Some 140 major state-owned companies have either declared bankruptcy or entered into mergers during 1998 , up a whopping 75 percent on the total number for the 10-year period between 1985-1995 .

　　1998年，已經(jīng)有大約140個(gè)大的國(guó)有公司宣布破產(chǎn)或被兼并，與1985年到1995年這十年間的總數(shù)相比超出75%。

　　288. China's illiteracy rate has dropped by some 60 percent over the past few years , but nonetheless remains at one of the highest levels for any developing nation .

　　在過(guò)去的幾年中，中國(guó)的文盲率下降了約60%，但仍是發(fā)展中國(guó)家中較高的。

　　289. The steady three-year annual rise in the export rate between 1995-1997 has been followed by steadily failling prices during 1998 and the trend is expected to continue indefinitely .

　　1995年到1997年，出口率持續(xù)穩(wěn)定增長(zhǎng)之后，1998年，價(jià)格穩(wěn)步下跌，預(yù)計(jì)這一趨勢(shì)會(huì)無(wú)限期地持續(xù)下去。

　　290. It is essential to examine every angle in order to fully understand the nature of a perplexing problem .

　　為了全面理解一個(gè)復(fù)雜問(wèn)題的本質(zhì)，必須從每個(gè)角度進(jìn)行考查。

　　291. We must engage in thorough discussions in order to gain a better sence of the most appropriate and effective way to proceed with the project .

　　我們必須進(jìn)行充分的討論，以便更好地理解繼續(xù)實(shí)施計(jì)劃最合適和有效的途徑。

　　292. We must develop a foolproof argument in order to effectively illustrate the urgency of implement stringent environmental protection measures .

　　為了有力地證明貫徹嚴(yán)格的環(huán)境保護(hù)措施的緊迫性，我們必須進(jìn)行簡(jiǎn)單明了的論證。

　　293. A comparative analysis of the positive and negative aspects of the Three Gorges Project will perhaps provide us with a better sense of the eventual impact of the massive water control program .

　　三峽工程利弊的對(duì)比分析可能會(huì)使我們更清楚地認(rèn)識(shí)這一龐大的治水工程的最終影響。

　　294. Incompatibility provides only a partial explanation for the rising divorce rate . Perhaps the most significant factors center on abuse , the immaturity of one spouse or the other , and quite simply the lack of things in common .

　　不能和諧相處只是不斷升高的離婚率的部分原因。最重要的因素可能是某一方的陋習(xí)和不成熟，以及僅僅因?yàn)槿狈�共同的東西。

　　295. The success of a company is directly related to the competency of its managers .

　　一個(gè)公司的成功與它的管理人員的能力直接相關(guān)。

　　296. Mental disorientation is but one of the many effects of alcohol consumption . Another is anti-social behavior , and still another is physical deterioration .

　　將神上的迷惑只是喝酒的眾多后果之一，另一后果是反社會(huì)的行為，還有體質(zhì)下降。

　　297. Apart from providing sheer enjoyment , music provides one with the opportunity to escape the daily pressures of life and enter an aesthetic world of sensual pleasure .

　　音樂(lè)除了帶來(lái)純粹的享受，還提供機(jī)會(huì)逃避日常生活的壓力，進(jìn)入一個(gè)感官享受的審美世界。

　　298. In spite of the costs involved space exploration is absolutely necessary to solve the puzzles of the Universe .

　　盡管太空探索代價(jià)很高，但它對(duì)于揭開(kāi)宇宙之謎來(lái)說(shuō)是完全需要的。

　　299. On the one hand , technological advances yield beneficial results , while on the other they create problems which threaten our very existence .

　　一方面，技術(shù)進(jìn)步產(chǎn)生有益的結(jié)果，但另一方面，也制造了危及我們生存的問(wèn)題。

　　300. There are other social factors worth serious considerations in evaluating those special behaviors .

　　在評(píng)價(jià)這些特殊行為時(shí)，需要考慮其他的一些社會(huì)因素。