题目

 “可燃冰”作为新型能源,有着巨大的开发使用潜力。同等条件下,“可燃冰”完全燃烧放出的热量达到煤气的数十倍,说明“可燃冰”的 很大。以10倍的关系粗略计算,1 kg“可燃冰”完全燃烧放出的热量为 J,这些热量可以使 kg的水从20℃升高至100℃。[c=4.2×103J/(kg·℃),q煤气=4.2×107J/kg]  【解题指南】解答本题抓住以下关键点： (1)判断热值的计算公式。 (2)判断水吸收热量的计算公式。 【解析】本题考查的是热值的相关知识。热值是1 kg某种燃料完全燃烧放II.完形填空On the first day of school,the new teacher had a look at the name list of students. How pleased she was!Guess what she 1 ? After each student's name,there was a number 2 138,140,154 and so on. 3 these high IQ(智商) students,” she thought to herself. “They’ve given me a wonderful 4 !”As a result,the 5 teacher worked harder with this class than her other classes. She 6 some new teaching ways. She thought these 7 would cheer the students and hold their 8 . She was right. It 9 out well!The class did much better than any of her others.Later,however,she found out the 10 ：the number after each name did not mean the IQ,but the number of his or her clothing box in the school.() 1. A. missed   B. feared   C. showed   D. found() 2. A. for   B. like   C. in   D. with() 3. A. Deal with   B. Talk about   C. Look at   D. Listen() 4. A. class   B. number   C. school   D. name() 5. A. cold   B. nervous   C. relaxed   D. excited() 6. A. tried   B. lost   C. solved   D. left() 7. A. plans   B. opinions   C. ways   D. results() 8. A. custom   B. interest   C. trouble   D. mistake() 9. A. hung   B. handed   C. put   D. worked() 10. A. truth   B. aim   C. means   D. idea