大学专业英语试卷.docVIP

《 专 业 英 语 》试卷 一、选择题 (阅读下列描述，从A、B、C、D四个答案中选择正确的一个；共20分，每小题2分) 1. 1H and 2H are ____ and occupy the same position in periodic Table. ( ) A. isomers B. isotopes C. redox bodies D. amphoteric compounds 2. Compared to the charge and mass of a proton, an electron has _____. ( ) A. the same charge and a smaller mass B. the same charge and the same mass C. an opposite charge and a smaller mass D. an opposite charge and the same mass 3. The substances on the left side of a chemical equation are known as____. ( ) A. reactant(s) B. reactor(s) C. reductant(s) D. reaction(s) 4. Which of the following belongs to the family of nitrites? ( ) A. HNO3 B. KNO2 C. Mg3N2 D. NH3 5. Which of the following is classified into the family of transition elements? ( ) A. silicon B. Tin C. Helium D. copper 6. Reaction CH4 +Cl2 → CH3Cl + HCl is a(an) ______ reaction. ( ) A. substitution B. oxidation C. reduction D. exchange 7. When combining with nonmetallic atoms, metallic atoms generally ____. ( ) A. lose electrons and form negative ions B. lose electrons and form positive ions C. gain electrons and from negative ions D. gain electrons and form positive ions 8. In a molecule of CH4, the hydrogen atoms are spatially oriented toward the centers of a regular ______. ( ) A. pyramid B. tetrahedron C. square D. rectangle 9. Which element can be found in nature in the free (uncombined) state? ( ) A. Ca B. Ba C. Au D. Al 10. Which of the following pairs of compounds present isomers? ( ) A. 1-propanol and 2-propanol B. propyne and cyclopropane C. methanol and methanal D. ethane and ethanol 二、化学物质与命名 (将下表中物质的化学式、英文名和中文名填写完整；共 20分 每题 2 分) 编号 化学物质 中文名 英文名 (IUPAC) 化学式 (结构式) 1 锌 2 氯化钠 3 diphosphorus pentoxide 4 ammonium nitrate 5 ferrous hydroxide 6 Potassium permanganate 7 乙烯 8 环己烷 9 n-butanol 10 三、词汇题 (将中文词