问题 阅读理解

阅读理解。

     We need your name, year of birth, home address (city and state), phone number, school name and

e-mail address so that we can e-mail you if your work is published (出版).

     The sentence "I promise (承诺) that the work is original (原创的)" must be written on the top of

your writing, and then you must write down your name.

     Keep sending your works all winter! You can mail your works to Chester Press Box 172, Chester,

Cheshire, visit www. Chesterpress.edu or submit (注册) @Chesterpress. edu.

     Please remember the following points:

     ★ You should keep a copy for yourself.

     ★ Your work may be corrected. We keep the right ( 权利) to correct and publish it in any form

     without your permission.

     ★ If you don't want your name and address for our record, we will not return your work that you

     send to us

1. Which of the following is NOT mentioned in this passage?

A. Phone number.              

B. School name.

C. School address.                  

D. Year of birth.

2. From the passage, we know that Chester Press is probably a ______.

A. magazine

B. film

C. game

D. club

3. Which of the following is NOT true according to this passage?

A. You can send your works in winter.

B. Editors at Chester Press cannot correct your works.

C. You have to make sure that your works are original.

D. You will be told by e-mail if your work is published

4. What do we know from this passage?

A. You can send your works by post.

B. You must type the works yourselves.

C. You aren't allowed to keep your own copy.

D. Your works cannot be published without your permission.

5. Who might be interested in this passage?

A. Nurses.                

B. Book sellers.  

C. TV reporters.              

D. Writers.

答案

1-5 CABAD  

问答题

(5分)请认真阅读下面材料,回答下面问题:

材料一:2008年9月,中国爆发三鹿婴幼儿奶粉受污染事件,导致食用受污染奶粉的婴儿产生肾结石病症,其原因也是牛奶中含有三聚氰胺。

材料二:在奶制品行业中,通常利用氮元素来衡量蛋白质的含量(合格奶粉的氮含量在2.8﹪左右,蛋白质平均含氮量在16﹪)

材料三:三聚氰胺的性状为纯白色单斜棱晶体,化学符号为(C3N6H6),无味,常压熔点为354℃(分解),升华温度为300℃。溶于热水,微溶于冷水,极微溶于热乙醇,不溶于苯、醚和四氯化碳等物质。低毒性,在常温情况下化学性质稳定,但在高温下可能会分解放出氰化物(有毒)。

(1)请你写出组成三聚氰胺元素的名称            ,三聚氰胺也被人称之为“蛋白精”,价格便宜。牛奶和奶粉添加三聚氰胺,主要是因为能冒充蛋白质。试解释三聚氰胺能冒充蛋白质的原因。

                                 

(2)为安全起见,一般采用三聚氰胺所制造的食品都会标明“不可放入微波炉使用”。试解释原因                                 。

(3)请你写出关于三聚氰胺的一条化学性质                                    

(4)“食品安全无小事”由“三鹿奶粉婴幼儿受污染事件”,你对避免此类事件有何建议(回答一点即可)                                           

单项选择题