[emuchnet]2012年兰州大学化学化工学院复试笔试部分(专业英语)-考研试题文档资料系列.doc

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1、2012年兰州大学化学化工学院复试笔试部分(专业英语)1Translate the following paragraphs into Chinese.(1)Many ethers, including diethyl ether, are effective as general anesthetics (麻醉剂). Because simple ethers are quite flammable, their place in medical practice has been taken by highly halogenated nonflammable ethers. Two su

2、ch general anesthetic agents are isoflurane and enflurane. These compounds are isomeric. Isoflurane is 1-chloro-2, 2, 2-trifluoroethyl difluoromethyl ether, enflurane is 2-chloro-1, 1, 2-trifluoroethyl difluoromethyl ether.(2)Amides are sometimes prepared directly from carboxyl acids and amines by a

3、 two step process. The first step is an acid-base reaction in which the acid and the amine combine to form an ammonium carboxylate salt. On heating, the ammonium carboxylate salt loses water to form an amide.2Translate the following phrases into English.(1)格利雅试剂(2)亲核取代反应(3)有机化学(4)物理化学(5)反应动力学(6)自由基(7)平衡常数(8)聚合物(9)药物化学(10)配体3Some people think that chemistry creates the world, while others believe that chemistry is the origin of pollution. Write a short passage (no less than 100 words) to express your own opinion on chemistry.