大学英语六级词汇真题练习卷（二） 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 6. The two most important ________ in making a cake are flour and sugar . A) elements B) components C) ingredients D) constituents 7. Cultural ________ indicates that human beings hand their languages down from one generation to another. A) translation B) transition C) transmission D) transaction 8. We must look beyond ____ and assumptions and try to discover what is missing. A) justifications B) illusions C) manifestations D) specifications 9. No one imagined that the apparently ________ businessman was really a criminal. A) respective B) respectable C) respectful D) realistic 10. If nothing is done to protect the environment, millions of species that are alive today will have become ________ . A) deteriorated B) degenerated C) suppressed D) extinct 11. The ________ of the scientific attitude is that the human mind can succeed in understanding the universe. A) essence B) texture C) content D) threshold 12. The old lady has developed a ____ cou...
