A:用砂轮磨菜刀,菜刀的温度升高
B:将冰块放入饮料中,饮料的温度降低
C:用锯锯木头,锯条发热
D:寒冷的冬天,双手互搓,手的温度升高
“假如生活欺骗了你,不要忧伤,不要愤慨。不顺心的时候暂时容忍。相信吧,快乐的日子就要到来。”这段话告诉我们( )①要学会调控自己的情绪 ②要热爱生活,以乐观向上的心态对待生活③忧郁和烦恼的心情是可以调节的 ④ 生活处处有烦恼,要永远忍耐
阅读下面短文,从短文后所给的A、B、C、D四个选项中选出能填入相应空白处的最佳选项。
Dear Sally,
How are you? I'm happy that you can do the things you 1 at home. I never have fun, because there are too many 2 in my family. My parents are strict. I have to 3 at six o'clock every morning. And I have to make my bed 4 before breakfast and then go to school. I can't play with my friends after school. I have to do 5homework. After dinner I have to take the dog for 6 walk in the park. I can't watch TV on school nights. I have to 7 the violin for an hour. I can't go to bed late. I have to be in bed 8 nine o'clock. On weekends I have to clean my room and 9the dishes. I also have to go to learn the violin on Sundays. I'm 10 tired. Can you help me?
Yours,
Lisa