阅读下面的文字,完成题。艺术与人生并非漠不相关的两件事。人生是多方面而却互相和谐的整体,把它分析开来看,我们说某部分是实用的活动,某部分是科学的活动,某部分是美感的活动,为正名析理起见,原应有此分别;但是我们不要忘记,完满的人生见于这三种活动的平均发展.它们虽是可分别的而却不是相互冲突的。“实际人生”比整个人生的意义较为窄狭。一般人的错误在把它们认为相等,以为艺术对于“实际人生”既是隔着一层,它在
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Have you ever been to Disneyland Most of us have probably heard of Mickey Mouse and Donald Duck, and many other famous Disney characters. Perhaps we have even seen them in movies. But have you ever be
阅读教学不仅包括__________ 的教学,而且应包括阅读技能的培养和训练,使学生具有真正全面的阅读能力。
It’s one of our common beliefs that mice are afraid of cats. Scientists have long known that even if a mouse has never seen a cat before, it is still able to detect chemical signals released from it a
A. Toxoplasma gondii causes people strange and deadly diseases.
B. With certain infection the infectious disease cannot be cured completely.
C. Human beings infected by toxoplasma gondii will have permanent brain damage.
D. Toxoplasma gondii is harmful to human beings, but it does no harm to mice.
“同底数幂的乘法”教学片断: 师生共同探索归纳总结出同底数幂的乘法法则后,进入知识巩固环节,教师出示例题:已知2x=16,2y=512,求2x+y的值。 解决本题时,需要学生能理解同底数幂的乘法法则,将公式am·an=am+n逆用,由于题目本身相对简单,大多数学生能获得解题思路并求得结果。(注:学生的回答是:2x+y=2x·2y=16×512=8192)一位学生出现了不同的声音,他的思路,先设法求