下列说法正确的是( )
A.有发光、放热现象的变化一定是燃烧
B.剧烈的燃烧都会引起爆炸
C.爆炸一定属于化学变化
D.燃烧一定伴随着发光、放热现象
答案:D
句型转换
1. Football is my favourite sport.(改为同义句)
I football .
2. I think the food here is expensive.(改为同义句)
I think the food here is ______.
3. Betty is better than Li Ping at swimming.(改为一般疑问句)
________________________________
4. does, she, how, her, check, at, home, vocabulary(?)(连词成句)
5. Running is boring. Skiing is more boring.(用than改写为一句)
Skiing is ______ __ _ than running.
识读装饰平面图的基本要点。