1、1Typical of the grassland dwellersofthe continent is the American antelope, or pronghorn.美洲羚羊 或称叉角羚是该动物典型的草原动物。2Of the millions who saw Haleys cometin 1986, how many people will live long enough to see it return in the twenty-first century.1986年看见哈雷彗星的千百万人当中 有多少人能够长寿到足以目睹它在二十一世纪的回归呢？3Anthropologists
2、have discovered that fear, happiness, sadness and surprise are universally reflected in facial expressions.人类学家们已经发现 恐惧、快乐、悲伤和惊奇都会形之于色 这在全人类是共通的。4Because of its irritating effecton humans, the use of phenolas a general antiseptichas been largely discontinued.由于苯酚对人体带有刺激性作用它基本上已不再被当作常用的防腐剂。5In group
3、to remain in existence, a profit-making organizationmust, in the long run, produce something consumers consider useful or desirable.任何盈利组织若要生存 最终都必须生产处消费者可用或需要的产品。6The greater the population there is in a locality, the greater the need there is for water, transportation, and disposal of refuse.一个地方的
4、人口越多 其对水、交通和垃圾处理的需求就会越大。7It is more difficult to write simply, directly, and effectively than to employflowerythat vague expressions that only obscureones meaning.简明、直接、有力的写作难于花哨、含混而意义模糊的表达。8With modern offices becoming more mechanized, designers are attempting to personalizethem with warmer, less s
5、evere interiors.随着现代办公室的日益自动化设计师们正试图利用较为温暖而不太严肃的内部装饰来使其具有亲切感。9The difference between libeland slanderis that libel is printed while slander is spoken.诽谤和流言的区别在于前者是书面的 而后者是口头的。10The knee is the joints where the thigh bone meets the large bone of the lower leg.膝盖是大腿骨和小腿胫的连接处。11Acids are chemical compo
6、undsthat, in water solution, have a sharp taste, a corrosive action on metals, and the ability to turn certain blue vegetable dyes red.酸是一种化合物它在溶于水时具有强烈的气味和对金属的腐蚀性 并且能够使某些蓝色植物染料变红。12Billie Holidays reputation as a great jazz-blues singer rests onher ability to give emotional depth to her songs.Billi
7、e Holidays作为一个爵士布鲁斯乐杰出歌手的名声建立在能够赋予歌曲感情深度的能力。13Essentially, a theory is an abstract, symbolic representation of what is conceivedto be reality.理论在本质上是对认识了的现实的一种抽象和符号化的表达。14Long before children are able to speak or understand a language, they communicate through facial expressions and by making noises
8、.儿童在能说或能听懂语言之前 很久就会通过面部表情和靠发出噪声来与人交流了。15Thanks to modern irrigation, crops now grow abundantly in areas where once nothing but cactiand sagebrushcould live.受当代灌溉（技术设施）之赐 农作物在原来只有仙人掌和荞属科植物才能生存的地方旺盛地生长。16The development of mechanical timepiecesspurredthe search for more accurate sundialswith which to
9、regulate them.机械计时器的发展促使人们寻求更精确的日晷一边校准机械计时器。17Anthropologyis a science in that anthropologists use a rigorousset of methods and techniques to documentobservations that can be checked by others.人类学是一门科学 因为人类学家采用一整套强有力的方法和技术来记录观测结果 而这样记录下来的观测结果是供他人核查的。18Fungiare important in the process of decay, whic
10、h returns ingredients to the soil, enhances soil fertility, and decomposesanimal debris.真菌在腐化过程中十分重要 而腐化过程将化学物质回馈与土壤 提高其肥力 并分解动物粪便。19When it is struck, a tuning forkproduces an almost pure tone, retaining its pitch over a long period of time.音叉被敲击时 产生几乎纯质的音调 其音量经久不衰。20Although pecansare most plentif
11、ul in the southeastern part of the United States, they are found as far north as Ohio and Illinois.虽然美洲山河桃树最集中于美国的东南部 但是在北至俄亥俄州及伊利诺州也能看见它们。21Eliminatingproblems by transferring the blame to others is often called scape-goating.用怪罪别人的办法来解决问题通常被称为寻找替罪羊。22The chief foods eaten in any country depend lar
12、gely on what grows best in its climate and soil.一个国家的主要食物是什么 大体取决于什么作物再起天气和土壤条件下生长得最好。23Over a very large number of trials, the probability of an events occurring is equal to the probability that it will not occur.在大量的实验中 某一事件发生的几率等于它不发生的几率。24Most substance contractwhen they freeze so that the densi
13、ty of a substances solid is higher than the density of its liquid.大多数物质遇冷收缩所以它们的密度在固态时高于液态。25The mechanismby which brain cells store memories is not clearly understood.大脑细胞储存记忆的机理并不为人明白。26By the middle of the twentieth century, painters and sculptors in the United States had begun to exerta great wo
14、rldwide influence over art.到了二十一世纪中叶 美国画家和雕塑家开始在世界范围内对艺术产生重大影响。27In the eastern part of New Jersey lies the city of Elizabeth, a major shipping and manufacturing center.伊丽莎白市 一个重要的航运和制造业中心 坐落于新泽西州的东部。28Elizabeth Blackwell, the first woman medical doctor in the United States, founded the New York Inf
15、irmary, an institution that has always had a completely female medical staff.Elizabeth Blackwell 美国第一个女医生 创建了员工一直为女性纽约诊所。29Alexander Graham Bell once told his family that he would rather be remembered as a teacher of the deaf than as the inventor of the telephone.Alexander Graham Bell曾告诉家人 他更愿意让后人记住他是聋子的老师 而非电话的发明者。30Because its leaves remain green long after being picked, rosemarybecame associated with the idea of remembrance.采摘下的迷迭香树叶常绿不衰 因此人们把迷迭香树与怀念联系在一起。31Although apparentl
