1. Typical of the grassland dwellers of the continent is the American antelope， or pronghorn.

　　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 saw Haley‘s comet in 1986， how many people will live long enough to see it return in the twenty-first century.

　　1986年看見哈雷慧星的千百萬人當中，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. Anthropologists have discovered that fear， happiness， sadness， and surprise are universally reflected in facial expressions.

　　人類學家們已經發現，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. Acids are chemical compounds that， 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。

　　5. Billie Holiday‘s reputation as a great jazz-blues singer rests on her ability to give emotional depth to her songs.

　　Billie Holiday‘s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。

　　6. Because of its irritating effect on humans， the use of phenol as a general antiseptic has been largely discontinued.

　　由于苯酚對人體帶有刺激性作用，它基本上已不再被當作常用的防腐劑了。

　　7. In group to remain in existence， a profit-making organization must， in the long run， produce something consumers consider useful or desirable.

　　任何盈利組織若要生存，最終都必須生產出消費者可用或需要的產品。

　　8. The greater the population there is in a locality， the greater the need there is for water， transportation， and disposal of refuse.

　　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。

　　9. It is more difficult to write simply， directly， and effectively than to employ flowery but vague expressions that only obscure one‘s meaning.

　　簡明，直接，有力的寫作難于花哨，含混而意義模糊的表達。

　　10. With modern offices becoming more mechanized， designers are attempting to personalize them with warmer， less severe interiors.

　　隨著現代辦公室的日益自動化，設計師們正試圖利用較為溫暖而不太嚴肅的內部裝飾來使其具有親切感。