“低碳”是指在生产和生活中不排放或少排放二氧化碳气体。下列能源的使用最符合“低碳”理念的是………………………………………………………………………（ ）
A．煤
B．石油
C．天然气
D．太阳能
答案：D
分析：根据低碳的含义进行分析，并根据煤、石油、天然气燃烧的产物和太阳能无污染的特点判断．
解答：解：A、煤燃烧生成二氧化碳及部分一氧化碳、二氧化硫、烟尘等，不符合“低碳”理念，所以错误．
B、石油燃烧生成二氧化碳及部分一氧化碳、二氧化硫、碳氢化合物、烟尘等，不符合“低碳”理念，所以错误．
C、燃烧生成二氧化碳及部分一氧化碳烟尘等，不符合“低碳”理念，所以错误．
D、太阳能不排放任何污染物，所以正确．
故选D．
点评：在极端天气肆虐的今天，低碳生活理念已成为现代入的共识，节能减排的措施和观念培养便成为化学考查的热点，在学习中要求学生要认真观察生活，体验生活，用低碳生活理念指导自己的活动，把节能减排的措施运用到生产、生活中去，在实践中掌握知识，运用知识
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| Most adults(成年人) once studied at school,had classes and did their homework every day.The same 1 is going on at school now. 2 it seems that doing weekend homework is 3 problem for the modern students. All the student should agree that weekend homework should be abolished (取消).It’s 4 for them studying at school five days a week.With homework to do on Saturday and Sunday,when can they find 5 to help around the house,go and see a game,or just have 6 at home? Because of these other activities(活动)，the homework can’t be finished until 7 so their homework is usually done in such a hurry that on Monday teachers are 8 and often threaten (威胁)to fail whole class of students because they know nothing about the 9 .If there were no weekend homework for the students to do ,they would be happy to go to school on Monday 10 having a good rest and to learn what the teachers teach. | |||
| ( )1. A. thing ( )2. A. Also ( )3. A. no ( )4. A. not enough ( )5. A. friends ( )6. A. a rest ( )7. A. Monday afternoon ( )8. A. pleased ( )9. A. lessons ( )10. A. until | B. school B. But B. another B. enough B. time B. an exam B. Saturday afternoon B. sorry B. games B. when | C. class C. Still C. one C. no good C. places C. a lesson C. Friday night C. unhappy C. interests C. before | D. homework D. Though D. other D. no use D. money D. a picnic D. Sunday night D. not worried D. activities D. after |