问题 填空题

高纯度的单质硅是信息产业的核心材料,可以说没有硅就没有我们喜欢的计算机。

(1)地壳中含有大量的硅元素,它的含量仅次于     元素。

(2)SiO2是河沙的主要成分,工业上制取精硅的化学方程式为:SiO2 + 2C 高温 Si + 2R ,R的化学式为       

答案

(1)氧       (2)CO

(1)因为地壳元素含量最多的是氧,其次是硅.故答案为:氧;

(2)①根据质量守恒定律和工业上制取粗硅的化学方程式(SiO2 + 2C 高温 Si + 2R)可知,R的化学式中应有的Si元素的原子个数为(1-1)÷2=0,O元素的原子个数为2÷2=1,C元素的原子个数为2÷2=1;则R的化学式为CO.

填空题
阅读理解

Recently a Beijing father sent in a question at an Internet forum (论坛) asking what "PK" meant.

"My family has been watching the 'Super Girl' singing competition TV programme. My little daughter asked me what 'PK' meant, but I had no idea," explained the puzzled father.

To a lot of Chinese young people who have been playing games online, it is impossible not to know this term. In such Internet games, "PK" is short for "Player Kill", in which two players fight until one ends the life of the other.

In the case of the "Super Girl" singing competition, "PK" was used to refer to the stage where two singers have to compete with each other for only one chance to go up in competition ranking.

Like this father, Chinese teachers at high schools have also been finding their students' compositions using Internet jargons which are difficult to understand. A high school teacher from Tianjin asked her students to write compositions with simple language, but they came up with a lot of Internet jargons that she didn't understand.

"My 'GG' came back this summer from college. He told me I've grown up to be a 'PLMM'. I loved to 'FB' with him together; he always took me to the 'KPM'," went one composition.

"GG" means Ge Ge (Chinese pinyin for brother). "PLMM" refers to Piao Liang Mei Mei (beautiful girl). "FB" means Fu Bai (corruption). "KPM" is short for KFC, Pizza Hut and McDonald's.

Some specialists welcome Internet jargons as a new development in language.

If you do not even know what a Kong Long (dinosaur, referring to an ugly looking female) or a Qing Wa (frog, referring to an ugly looking male) is, you will possibly be regarded as a Cai Niao!

小题1:By writing the article, the writer tries to  ________ .

A.explain some Internet language

B.suggest common Internet language

C.laugh at the Beijing father

D.draw our attention to Internet language小题2:What does the writer think about the term "PK"?

A.Fathers can't possibly know it.

B.The daughter should understand it.

C.Online game players may know it.

D."Super Girl" shouldn't have used it.小题3:The examples of the Beijing father and the Tianjin teacher are used to show that Internet jargons ________ .

A.are used not only online

B.can be understood very well

C.are welcomed by all the people

D.cause trouble to our mother tongue小题4:The underlined word "jargons" means " ________ " in Chinese.

A.行话

B.粗口

C.歌词

D.趋势