题干

将甲、乙两种金属的性质相比较,已知
①甲跟水反应比乙与水反应剧烈
②甲单质能从乙的盐溶液中置换出单质乙
③甲的最高价氧化物的水化物碱性比乙的最高价氧化物的水化物碱性强
④与某金属反应时甲原子得电子数目比乙的多
⑤以甲、乙金属为电极构成原电池,乙作负极
能说明甲的金属性比乙强的是

A:①④

B:③⑤

C:①②③

D:①②③④⑤

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C

同类题2

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“差生”决定中国未来

       ①最近,华东师范大学教授戚业国提出一个观点,博得大家一致认同。戚教授认为:我们未来生活质量的高低,取决于今天班里的那些“差生”;因为,未来为你提供卖菜、收电费、开出租车等日常服务项目的,就是今天的这些“差生”。这些人,能真正让你切实体会到生活质量的高低。毋庸讳言,任何一所学校都有“差生”,并且,“差生”被边缘化似乎成了一种普遍趋势。有些学校更是公然歧视“差生”一一给“差生”戴“绿领巾”,将“差生”驱赶到最后一排,为“差生”单独编班等。因为“差生”被普遍当成了“累赘”,所以,当我们看到魏书生、李镇西、雷夫等优秀教师偏爱“差生”的时候,我们才感到格外欣慰。

       ②对分数的狂热膜拜,使我们忽略了太多不该忽略的东西。挫败感本已经使“差生”苦不堪言,遭白眼又给他们的伤口撒盐。我们常常纳闷儿,为什么越是“差生”毛病就越多,抽烟、上网、逃课、出走……而“标签效应”告诉我们:当一个人被一种词语义称贴上标签时,他就会做出自我印象管理,使自己的行为与所贴的标签内容相一致,而这也正是“差生”被称作“差生”之后越来越差的原因。前苏联著名教育家马卡连柯创办了“波尔塔瓦幼年违法者工学团”(后更名为“高尔基工学团”),“工学团”的学员全都是失足少年。一个后来成为马卡连柯得力助手的学员卡拉巴林这样回忆道:“马卡连柯注意到我的人格,可是那时,我自己还不知道什么是人格。这是他对我的第一次温暖的、人道的接触。”就是凭着这种“温暖的、人道的接触”,马卡连柯创造了教育的奇迹。当年那些失足少年,被他成功塑造成了专家、学者、干部、国家勋章获得者和卫国战争英雄。

       ③没有谁不喜欢这样的句子﹣﹣“爱出者爱返,福往者福来”。但是,我们不妨想想看,如果“差生”今天收到的只有歧视与侮辱,那么,明天他奉还社会的,除了冷酷与怨恨还能有什么呢?智者说:“源头之石,改变了河流的走向。”愿那幸运地做了“源头之石”的人意识到自己在的意义,意识到自己对于河流的意义,意识到河流对于大海的意义;愿每一条河流在回望迢遥来路的时候都能够深情地说:“感谢那源头之石,赋予了我有尊严的流向。”

同类题3

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    Many years ago three soldiers, hungry and tired of battle, came upon a small village. The villagers, suffering a bad harvest and the many years of war, quickly hid what little they had to eat and met the three in the village square, shaking their heads and sighing, “Well, we are starving.” The soldiers communicated with each other quietly and then the first soldier turned to the villagers. “Your poor fields have left you nothing to share, so we will share what little we have: the secret of making soup from stones.”

    Naturally the villagers were intrigued and soon a fire was built to the villager's greatest pot, and then the soldiers dropped in three smooth stones.

     “Now this will be a fine soup,” said the second soldier, “but a handful of salt and some parsley (香芹) would make it wonderful!” Up jumped a villager, crying “What a piece of luck! I've just remembered where some has been left!”

    And off she ran, returning with parsley. As the pot was boiling, the memory of the villagers improved: soon carrots, beef and cream had found their way into the great pot. They ate and danced and sang well into the night, thrilled about the feast and their new-found friends. In the morning the three soldiers awoke, finding all the villagers standing before them. At their feet lay a bag of the village's best bread and cheese. “You have given us the greatest gift.” said an elder, “and we shall never forget.” The third soldier turned to the crowd, and said, “There is no secret, but this is certain: people working together can accomplish great things.” At last the light dawned on villagers. Off the soldiers wandered, down the road.