题目

被誉为“太空金属”的钛( )，在自然界中主要以金红石( )的形式存在。由于金红石熔点高，为金属 的直接制备带来了困难。在工业上常常采用将其先转化成熔沸点较低的 后再进行还原的方法。金红石转化成 的反应方程式如下： （1） 用单线桥法标出电子转移的数目和方向； （2） 指出该反应的氧化剂，氧化产物。Complete the sentences with the given words in their proper forms（用括号中所给单词的适当形式完成下列句子，每空格限填一词）：【1】The clever boy managed to report the bank ______ to the police in time.（robber）【2】Jackie Chan's new Kungfu movie is not only funny but also full of ______.（act）【3】Every year, our school holds ______ activities for us to show our talents.（variety）【4】The funny, dramatic or exciting story in comic strips is ______ told in pictures.（main）【5】A comic should be full of action to keep the reader ______（interest）【6】Ma Yun made a wonderful ______ on how to be a successful person in life.（speak）【7】The fans were too ______ to see their favourite singer at the airport.（excitement）【8】It is dangerous to tell others your ______ information on the Internet.（personality）