问题 填空题

秦始皇陵铜车马、青铜仙鹤、树下仕女图等10件顶级国宝,聚首“2011西安世园会”。

(1)秦始皇陵铜车马出土时表面有一些铜锈,铜锈主要成分是碱式碳酸铜[Cu2 (OH)2CO3]。铜生锈除了与氧气和水有关外,从碱式碳酸铜的化学式推知还与空气中的____有关。    

(2)青铜仙鹤的主要成分是铜合金。一般来说,合金与组成它的纯金属相比,其性能会发生改变,改变之一是_______。

答案

(1)CO2或二氧化碳  

(2)硬度增大或熔点降低

单项选择题
改错题

第二卷(非选择题;两节,共35分)

第四部分 写作(共两节,满分35分)

第一节 短文填词(共10小题;每小题1分,满分10分)

阅读下面短文,根据以下提示:1)汉语提示;2)首字母提示;3)语境提示,在每个空格内填入一个适当的英语单词,并将该词完整地写在右边相对应的横线上。所填单词要去意义准确,拼写正确。

Dear Mr. Smith,

How are you! I’m very happy to write this letter to you.       

I r     the admission notice to Beijing University last                     76.__________      

W     . As you know, my major is Foreign Language Literature.         77.__________      

      I have been dreaming about. Mr. Smith, I still remember            78.__________      

The first day when you began to teach us. When a     to introduce         79.__________      

Ourselves, we were quite nervous, b     we were poor at listening        80.__________     

And speaking. However, you patiently       (鼓励) us to practice 81.__________      

As much as possible. Your class was so       (生动)that all of        82.__________      

Us were interested. With your       I improved my English step         83.__________      

      step;otherwise, in NMET I wouldn’t have got a satisfactory             84.__________      

result. Mr. Smith, thank you very much indeed.      I miss you!         85.__________      

Hope to see you soon!