题目

下列现象，可用分子的知识加以解释，其中正确的是（     ） A．品红在水中扩散是因为分子在不断运动 B．温度计中的水银热胀冷缩是因为分子间间隔随温度变化而改变 C．水变成冰后水分子不再运动 D．气体易被压缩是因为气体分子间的间隔很小 答案：ARead and choose.A. Because I can go swimming.B. It’s in autumn.C. It’s too cold.D. I can make a snowman.E. I often clean the room, wash clothes.F. Which is your favourite season?A. Because I can go swimming.B. It’s in autumn.C. It’s too cold.D. I can make a snowman.E. I often clean the room, wash clothes.F. Which is your favourite season?Robin: Hi!May I ask you some questions?Sam: Sure, please.Robin:1. _________Sam: I like summer best. 2. ________Robin: Do you like winter?Sam: No, I don’t. 3. ________Robin: When is your birthday?Sam: 4. _________Robin: Do you help your parents do housework?Sam: Of course. 5. ________ Sometimes I cook dinner.Robin: Thank you.