1. Starting with the ________ that there is life on the planet Mars, the scientist went on to develop his argument. A) premise B) pretext C) foundation D) presentation  2. After several nuclear disasters, a ________ has raged over the safety of nuclear energy. A) quarrel B) suspicion C) verdict D) controversy  3. Their diplomatic principles completely laid bare their ________ for world conquest. A) admiration B) ambition C) administration D)orientation 4. The director gave me his ________ that he would double my pay if I did my job well. A) warrant B) obligation C) assurance D) certainty  5. The Christmas tree was decorated with shining ________ such as colored lights and glass balls. A) ornaments B) luxuries C) exhibits D) complements  1. A 參考譯文：以火星上有生命存在這一假設開始，那位科學家繼續(xù)進行論證。 A) premise 前提 B) pretext 借口 C) foundation 基礎 D) presentation 陳述 2. D 參考譯文：發(fā)生幾次核災難之后，關于核能安全的問題引起了一場激烈的爭論。 A) quarrel 爭吵 B) suspicion 懷疑 C) verdict 判決 D) controversy 爭議 3. B 參考譯文：他們的外交原則完全暴露了他們要征服世界的野心。 A) admiration 羨慕 B) ambition 野心 C) administration 管理 D)orientation 定向 4. C 參考譯文：主任向我保證，如果我工作干得好，他就會給我雙倍的工資。 A) warrant 證明 B) obligation 責任 C) assurance 確信 D) certainty 明確 5. A 參考譯文：圣誕樹上點綴著閃光的飾物，如彩燈和玻璃球。 A) ornament 裝飾 B) luxury 奢侈的 C) exhibit 展覽 D) complement 補充