—How was your summer camp in Dalian last

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问题选择题

—How was your summer camp in Dalian last year?

—______. I had a good time with my friends.[ ]

A. Awful

B. Fantastic

C. Expensive

D. Not good

答案

答案：A

填空题

用括号内所给动词的适当形式填空。

1. — Listen, who ________ (read) in the classroom?

— Maybe Kate ________ (be).

2. Amy ________ (write) good English but ________ (not speak) English well.

3. — Lily (listen) to the teacher?

— No, she isn't.

4. I ________ (like) drawing pictures very much. Look! I ________ (draw) a big tree.

5. The little girl ________ (look) like her father. Now, she ________ (look) at the photos of her family.

问答题

已知1mol CO气体完全燃烧生成CO₂气体放出283KJ热量；1mol H₂完全燃烧生成液态水放出286KJ热量；1mol CH₄气体完全燃烧生成CO₂气体和液态水放出890KJ热量．

（1）若1mol CH₄气体完全燃烧生成CO₂气体和水蒸气，放出的热量______890KJ．

（填“＞”、“＜”或“=”）

（2）若将n mol CH₄、CO和H₂的混合气体完全燃烧，生成CO₂气体和液态水，则放出热量（Q）的取值范围是______．

（3）若将a mol CH₄、CO和H₂的混合气体完全燃烧，生成CO₂气体和液态水，且CO₂气体和水的物质的量相等时，则放出热量（Q）的取值范围是______．