有人称煤炭是“工业的粮食”，通过煤的综合利用可以获得重要化工原料，如焦炭，它是煤的______ (填“蒸馏”或“干馏”)产物，可用于________________ (填出一种用途)；以煤为原料可以制得水煤气，其反应的化学方程式为______ _____。
干馏 金属冶炼 C(s)＋H2O(g)
CO(g)＋H2(g)
题目分析：焦炭是煤的干馏产物，可用于金属的冶炼。工业生产水煤气的原理是C(s)＋H2O(g)CO(g)＋H2(g)。
点评：该题是识记性知识的检验，难度不大，记住即可，有利于培养学生的环境保护意识和能源节约意识。
| 用所给动词的适当形式填空。 |
| In many countries, 1_____(smoke) is becoming a bigger problem for young people. Most smokers 2_____ (start) in their teens (years of a person's age from 13 to 19 ) or even earlier. A study of 8,000 Beijing students last May 3_____(show) us that smoking was a problem for many Chinese kids. More than 21% of middle school students and 6% of primary school pupils(小学生) said they had smoked. "If young people start 4_____(smoke) early, they will probably get addicted to nicotine (对尼古丁瘾).And it 5_____ (be) very hard to give up弃) later on," said a professor. Every year, about 4 million(百万) people die (死亡) of smoking. And if people keep 6_____ (smoke), that number will go up to about 10 million a year by 2030, the World Health Organization (WHO, 世界卫生组织) says. So we have to 7_____(know) and tell others about the dangers(危险) of smoking. Everyone of us should 8_____(do) something useful to stop kids from 9_____(smoke), or one day we 10_____(see) what we won't see. |