Re: [請益] TPO16 Development of periodic Table

看板TOEFL_iBT (TOEFL_iBT托福)作者sunny7733 (Sun98%)時間14年前 (2011/08/11 00:00)推噓0(0推 0噓 0→)

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(沒PO過幾次文章有誤請別見怪) 我昨天也在看這題你參考一下一開始我也選A 後來看到對岸的解釋似乎可以接受你參考看看吧以下 10. gallium做关键词定位至倒数第三句，但这句话只是说命名为GA，没说支持什么，往下看说GA的发现支持了元素周期律，而问题刚好是问GA的发现支持了什么，所以答案是C，元素周期表的组成规律，也就是元素周期律 XX ※ 引述《LucifaChen (Mansun怎麼也這麼好聽)》之銘言： : ※ 引述《Bonniepei (樂翻天唷)》之銘言： : : 10. It can be inferred from paragraph 3 that the significance of the : : discovery of gallium was that it supported which of the following? : : ○The idea that aluminum was correctly placed in the periodic table : : ○Mendeleyev's prediction that eka-silicon would be discovered next : : ○The organizing principle of the periodic table : : ○The idea that unknown elements existed : : Mendeleyev went further than Meyer in another respect: he predicted the : : properties of six elements yet to be discovered. For example, a gap just : : below aluminum suggested a new element would be found with properties : : analogous to those of aluminum. Mendeleyev designated this element : : "eka-aluminum" (eka is the Sanskrit word for "next") and predicted its : : properties. Just five years later an element with the proper atomic mass was : : isolated and named gallium by its discoverer. The close correspondence : : between the observed properties of gallium and MendeleyeVs predictions for : : eka-aluminum lent strong support to the periodic law. Additional support came : : in 1885 when eka-silicon, which had also been described in advance by : : Mendeleyev, was discovered and named germanium. : : 請問為什麼不是A 答案是C : 關鍵在於這一句 : The close correspondence between the observed properties of gallium and : MendeleyeVs predictions for eka-aluminum lent strong support to the : periodic law. : 在lent strong support to the periodic law.這一句剛好符合 : The idea that aluminum was correctly placed in the periodic table : 那C的部份似乎找不到相關線索因為gallium的出現並不能證明The organizing principle : of the periodic table -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 111.243.158.90