题干

下列有关惯性的说法正确的是(   )

A:跳远运动员要助跑后起跳,是为了增大惯性

B:小明没有推动静止的汽车,是由于汽车没有惯性

C:拍打衣服灰尘脱落,是由于灰尘有惯性

D:高速飞行的子弹穿入木头后静止,它的惯性就消失

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答案(点此获取答案解析)

C

同类题2

“教育是一个民族最根本的事业”――邓小平

材料一

董仲舒按人性把人分为上中下三个等级,占人口多数的“中民”是教育的主要对象。他主张设立各级学校,教授儒家经典,将他们培养为“笃于礼薄于利”“以天下为忧”的君子,以使得“教化大行,天下和洽”。

古罗马教育家昆体良(35~95年)认为,学校教育优于家庭教育,培养演说家是公民教育的重要目标。他还认为,完美的常说家“不仅要有超群的演说天赋,还要有完美的品格”“能尽公民之义务,能在公私事务中完成使命,能以忠告引导国家,能以立法奠定其雄厚基础”。

材料二

严复认为:“西之教平等,故以公治众而贵自由”“讲教育者,其事常三宗:曰体育,曰智育,曰德育,三者并重”。

1912年,蔡元培批评清政府的教育宗旨说:“忠君与共和政体不合,尊孔与信教自由相违”。同年,中华民国教育部公布的《教育宗旨》规定:“注重道德教育,以实利教育,军国民教育辅之,更以美感教育完成其道德”。

1957年,***提出:“我们的教育方针,应该使教育者在德育、智育、体育几方面都得到发展,成为有社会主义觉悟的有文化的劳动者”。

1995年,《中华人民共和国教育法》规定:“教育必须为社会主义现代化建设服务,必须与生产劳动相结合,培养德、智、体等方面全面发展的社会主义事业的建设者和接班人。”

材料三人文教育是欧洲教育的传承。19世纪,英国知识界对教育的内容展开争论。一派认为,科学(自然科学和应用科学)应该是教育的主体内容,它是文明的基础和核心,是国家富强之所在。教育不能只培养绅士,而是要满足社会的现实需要,但科学在教育中几乎没有获得应有的分量。另一派别认为,古典人文科目(语言、文学、哲学、历史、数学等)仍然应该是教育的核心内容。人文教育不仅追求纯粹知识,还是人类实现美、快乐、自由和道德的途径。类似的争论在近现代很多国家都发生过。

同类题3

完形填空

    "There once was a beggar who loved to hear himself sing.He lived1a dustbin next to a supermarket.He had the most amazing voice.No one would listen to him,2.Cats and dogs would come to sing along.All animals would come to hear this sound.No3though.His4audience were the animals.Even without people to sing to.the man was filled with5for he loved his voice.

    Then one day,a little girl was on her way to the supermarket.The man was singing one of his favorite songs.The little girl6him and wondered what that noise was.She began7around every corner until she found him. The girl's eyes began to grow wide as she saw the man in his8clothes.She asked him to sing,with no9of danger in her voice.This shocked the man.He sang for the girl with joy in his eyes.Although it was nice to be 10to sing,it was also nice to have an audience.He sang until they heard the girl's mother11for her.The girl quickly said12and ran off.

    The girl returned the next day and asked him to sing.13he sang for the little girl.After a few songs,she left14the call of her mother.She came the day after,with an older woman.This was the girl's15.She did not seem to mind being led behind a16dustbin.The girl asked the beggar to sing.The man sang his heart out for the17of them to hear.The mother's frown began to18and a smile began to appear.The days after were full of cheerful singing and the audience of two19,they would bring more people to listen.The beggar continued to sing until he could not sing anymore.20he loved his voice anymore.