问题 填空题

(8分)在一定条件下,某些化学反应可以下图框架表示,根据要求回答下列问题:

(1)若A、C、D均为含氯物质,且A的化合价介于C和D之间,D具有漂白性,写出该反应的离子方程式                                                            

(2)若通过电解的方法获得黄绿色气体C,则该反应的离子方程式为                   

(3)若C、D均为气体且均能使澄清石灰水变浑浊,写出符合上述框图要求的化学方程式                                          

(4)若A为红色金属单质,B为第二周期某种元素的最高价氧化物的水化物的稀溶液,

写出符合上述框图关系的离子方程式                            

答案

(1) Cl2+2OH= Cl+ClO+H2O;

(2)2Cl+2H2OCl2­+H2­+2OH

(3)C+2H2SO4(浓)CO2­+2SO2­+2H2O;

(4)3Cu+8H++2NO3 =3Cu2++2NO­+4H2O;

题目分析:(1)D具有漂白性,且A、C、D均含氯元素,可联想Cl2+2NaOH=NaCl+NaClO+H2O;

(2)电解饱和食盐水生成氢氧化钠、氢气和氯气。

(3)C、D均能使澄清石灰水变浑浊,C、D应为二氧化碳和二氧化硫,反应方程式为C+2H2SO4(浓)CO2­+2SO2­+2H2O;

(4)红色单质为铜,第二周期元素最高价氧化物对应水化物稀溶液可能为H3BO3、H2CO3、HNO3,铜能与稀硝酸反应,离子方程式为3Cu+8H++2NO3=3Cu2++2NO↑+4H2O。

点评:本题知识跨度较大,思考容量大。

阅读理解

阅读理解。

     To many basketball fans in Taiwan, the William Jones Cup or the Basketball Association may be their

sweetest memory. But if you ask them, "What's the hottest basketball event now?" There is the only

answer: HBL, the High School Basketball League.

     Founded in 1988, the HBLwas at first just a high school basketball tournament. After the Taipei

School Sport Federation took charge in 1996 and renamed it HBL, everything changed. The Federation

decided to co-operated with Nike, the well-known sportswear manufacturer, and use its experience in

marketing to promote the game.

     The HBL started with 129 teams; today there are more than 250. no longer just of interest to the

players, it's now Taiwan's biggest basketball event. Fellow students, alumni (男毕业生,男校友), and

sports fans all over Taiwan cheer for their favorite teams. At last year's finals, Taipei and Kaohsiung

mayors came to cheer for their teams.

     The HBL starts in September with qualifying and preliminary(预备的,初步的) rounds and continues

through April of the following year, when the finals are held. Broadcasting the games on television has

helped make the HBL a wildly popular event. It's become the place to spot young basketball talent.

Today's HBL players are tomorrow's professionals.

     Recent HBL tournaments have been very competitive, with no one school taking the advantage. This

wide-open quality of the tournament makes it more exciting. Everyone wants to see how this year's games will come out. HBL fever just keeps getting hotter.

1. What is the hottest event in the eyes of most basketball fans in Taiwan?

A. HBL                    

B. The William Jones Cup  

C. The Basketball Association    

D. NBA

2. What was it that helped to make the High School Basketball League wildly popular to the public?

A. The co-operation with Nike, the well-known sportswear manufacturer.

B. Broadcasting the games on television.

C. Taipei and Kaohsiung mayors' coming to cheer for their teams at last year's finals.

D. Many tomorrow's professionals' joining.

3.Why does the writer say"Recent HBL tournaments have been very competitive"?

A. Because there isn't a school taking the advantage.

B. Because HBL fever just keeps getting hotter.

C. Because it's become the place to spot young basketball talent.

D. Because the Taipei School Sport Federation took charge of it.

4. What would be the best title for the passage?

A. Today's Players---Tomorrow's Professionals

B. The High School Basketball League of Taiwan  

C. The Basketball Fans in Taiwan  

D. HBL Fever---Just Keeping Getting Hotter

5. Which of the following statements is true according to the passage?

A. At first, the HBL was no more than a high school football ball tournament.

B. It was the successful co-operation with Nike, the well-known sportswear manufacturer

     that changed everything of HBL.

C. Many of the mayors came to cheer for their teams during the event.

D. Everyone wants to see how the teams will come out to take part in the games.

单项选择题