下列变化属于化学变化的是
A．冰雪融化
B．木材制成桌椅
C．纸张燃烧
D．湿衣服晾干
答案：C
化学变化是指有新物质生成的变化，物理变化是指没有新物质生成的变化，化学变化和物理变化的本质区别是否有新物质生成；据此分析判断．
解：A、冰雪融化的过程中只是状态发生改变，没有新物质生成，属于物理变化．
B、木材制成桌椅，只是木头的形状发生了变化，没有新物质生成，属于物理变化．
C、纸张燃烧会生成二氧化碳等新物质，属于化学变化。
D、湿衣服晾干，是衣服中的液态水变为蒸汽散发出去了，没有新物质生成，是物理变化。
故选C
When our children were younger, it was popular for city people to buy a small farm in the country and _____ a few animals there. One of our new neighbors ____ some ducks. They seemed very lovely. However, they were ____ to run around in their yard and the neighbors’ yards -- ____ ours. Our vegetables were their favorite food. Often we would “shoo” the ducks home and wonder ____ there wasn’t a fence to keep them. One day, I asked her if she ____her ducks were bringing trouble to my garden. She told me that they were her ____ and he was away traveling. My attitude (态度) to her was bad. We realized that our neighbors were not planning to build a ____, so our son built one. The ducks now stayed in their own yard. I didn’t see my neighbor again ____ months later. A women’s church group asked me to ___ at their mother and daughter’s party. The topic was “Love”. Much to my ____, the first woman I saw when I walked into the church was my neighbor. I knew I could not speak about love to them when I hadn’t been ____with my neighbor. So I walked ____to her and said sorry for my attitude. She forgave me and then we talked a lot. Do you have anybody like that in your life? Let me ____ you, if at all possible, to clear the ____between you.
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