问题
选择题
能源是现代社会生活的物质基础,下列关于能源的论述中错误的是( ) A.人类消耗常规能源,如煤、石油、天然气等,化学能最终都转化成内能,流散到周围环境中 B.水电站中,水轮机将水流的机械能转化为电能,通过其他装置后,最终又都转化为内能 C.电冰箱消耗了电能才能使热量从低温物体传递到高温物体 D.燃气轮机把燃料燃烧得到的内能全部都转化成机械能 |
答案
答案:D
能源是现代社会生活的物质基础,下列关于能源的论述中错误的是( ) A.人类消耗常规能源,如煤、石油、天然气等,化学能最终都转化成内能,流散到周围环境中 B.水电站中,水轮机将水流的机械能转化为电能,通过其他装置后,最终又都转化为内能 C.电冰箱消耗了电能才能使热量从低温物体传递到高温物体 D.燃气轮机把燃料燃烧得到的内能全部都转化成机械能 |
答案:D
阅读理解。 | |||||
Amy's family has fun. They mail a diary (日记簿、日记) to each other. Everyone writes something in it. Amy's brother is open. He tells many things about his life. Amy's sister is Lazy. She doesn't write much. Amy's dad writes stories. Her mom is talkative. She writes a lot. Everyone enjoys the diary. | |||||
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1. Where do Amy's family members write their diaries? | |||||
A. On the same family diary. B. On their own diaries. C. On Amy's diary. D. On Mother's diary. | |||||
2. When did Amy design a new dress? | |||||
A. On Monday. B. On Tuesday. C. Yesterday. D. Today. | |||||
3. What does the brother think of his job? | |||||
A. The job makes him sad. B. The job always gives him pleasure. C. The job is too easy. D. The job is a challenge. | |||||
4. What did the mother do today? | |||||
A. She made a chocolate cake. B. She did nothing but walk in the park. C. She got a new job. D. She went for a walk and visited Aunt Betty. | |||||
5. What's the best title for the passage? | |||||
A. Amy and her family. B. Amy and her diary. C. A family's diary. D. Amy's father writes stories. |