题目

完形填空Mr. Turner has ten days off, and he doesn't have to go to work. Sohe wants to go to Paris for a trip. He1to his wife, I will leave forParis2andsee some of my friends there. He puts on his favorite hat, takes somebooks, goes to the3andgets on the train. The weather is4.Mr. Turner often puts his5outof the window and 6 the beautiful scenery (风景).Suddenlythe wind blows (吹) his hat off his head.Then Mr. Turner 7throws(扔) one of his books out of the window, too.One of the passengers(乘客) on the train askshim in surprise(惊讶),8do you throw your book out of thewindow? Can you16．A、B、C、D四种短周期元素，A、B、C同周期，A的原子半径是同周期中最大的；B、D同主族．已知D元素有两种常见的同素异形体，C元素的单质可以从A、B两元素组成的化合物的水溶液中置换出B元素的单质．（1）A元素名称是钠C元素在周期表中的位置第三周期第ⅦA族．（2）A元素的单质与水反应的离子方程式是2Na+2H2O=2Na++2OH-+H2↑．（3）写出C元素的单质从A、B两元素组成的化合物的水溶液中置换出B元素的单质的化学方程式Cl2+Na2S=2NaCl+S↓．该反应能否说明C元素的非金属性比B强？能填“能”“否”）（4）BD2和C2的水溶液均具有漂白性，二者的漂白原理不同．（填“相同”或“不同”）（5）B元素的单质在不同的条件下可以与O2发生一系列反应：B（s）+O2（g）═BO2（g）△H=-296.8kJ•mol-12BO2（s）+O2（g）═2BO3（g）△H=-196.6kJ•mol-1则1mol BO3（g）若完全分解成B（s），反应过程中的反应热△H=+395.1kJ•mol-1．