小红买了15本练习本,共付了6元钱,每本练习本多少钱?(用方程解)
解:设每本练习本x元。
15x=6
x=0.4
句型转换。(共15分,每小题3分)
1.I have a cold.(就画线部分提问)
you?
2. My father does exercise every morning.(用be going to改写句子)
My father is ________ exercise tomorrow morning.
3. They have to get up early every day.(改为一般疑问句)
_______they _______ _______ get up early every day?
4. Lucy got to Beijing yesterday.( 改为同义句)
Lucy Beijing yesterday.
5. There will be a school sports meet next week .(改为否定句)
a school sports meet next week.
古罗马诗人卢克莱修曾说:“站在岸上看船在海上颠簸是一件乐事,站在一座堡垒的窗前看下面的战争和它的种种经过是一件乐事,但是没有一件乐事能与站在真理的高峰目睹下面谷中的错误、漂泊、迷雾和风雨相比拟的了。”这表明()
①追求和探索真理比占有真理更有意义
②追求到终极真理是人生乐事
③认识要在实践中接受检验和不断发展
④认识的最终目的就是获得和占有真理
A.①②
B.③④
C.①③
D.②④