（09宿迁）2009年6月1日，国家《食品安全法》正式实施，在食品行业中“免
检”一词已成为历史，“凡食品必检、不合格不上市”成为最基本原则。某检测站对某品牌
奶粉进行检测。取该奶粉样品100g，使其中蛋白质中的氮元素完全转变成氨气，用50g溶
质质量分数为9.8%的稀硫酸恰好完全吸收【2NH₃+H₂SO₄＝（NH₄）₂SO₄】。计算并回答下列问题：
（1）产生氨气的质量。
（2）该奶粉中含氮元素的质量分数。
（3）奶粉中蛋白质含量的国家标准为：每100g奶粉中含蛋白质12g—25g。 蛋白质中氮元
素的平均质量分数为16%，则合格奶粉中氮元素的质量分数范围为      ；通过对比说明
上述检测的奶粉是否合格？
（4）上述奶粉若不合格，不法奶商为使其“合格”，常在奶粉中添加化工原料三聚氰胺（化学式C₃N₆H₆），以提升奶粉检测中的含氮量，造成蛋白质达标的假象。请你计算100g上述不合格奶粉中至少需要加入多少克三聚氰胺，才能成为“合格”奶粉。
（友情提醒:2/3-0.0192≈0.65）

任务型阅读。阅读下文并回答下列问题。（每小题2分，公6分）

Hello.I have a photo here. It’s a photo of my classrooom. Look, Some books are on our desks. On the teacher’s desk,there are(有) some notebooks. A clock is on the wall(墙上) of our classroom. That’s a map. It’s a map of China. And a hat is on it, too.It’s Kate’s. A baseball is under the chair. But a schoolbag is on it.   

1.Is the hat Kate’s?

 _______________________.

2. What are on the teacher’s desk?

__________________________________

3.Where is the baseball ?

 ________________________________.

 

同学们，如果你已完成了前面的所有试题，并已检查完毕。你可以做这道附加题，本题不计入总分。挑战一下自己吧！

任务型阅读 (10分)

Most Americans enjoy moving from one place to another. For example, they often drive their cars 120 to 160 kilometers away just to have dinner with a friend or even fly to London or Paris just to watch a football match. In some states only one person in five lives in a place for more than five years. 3.One may be born in one city, and go to school in another. He may finish his middle school in two or three cities, and then go to college far across the country. 4.When he begins to work, he may move from job to job. Moving from one job to another , which is called “job-hopping”, is very common in the United States.

Job-hopping is good to workers because every change of a job gives them a chance to get better pay. And job-hopping also gives bosses the chance to get new ideas and skills from the workers.

A.根据短文内容，回答下列问题。(每题2分)

1. How many people live in a place for more than five years in some places?

___________________________________________________________

2. How far could an American drive if he wants to have dinner with a friend?

___________________________________________________________

B.请将短文中的划线部分的句子翻译成中文。(每题2分)

3. __________________________________________________________

4. ___________________________________________________________

C.按要求完成下面各题。(每题1分)

5. What does “job-hopping” mean in English?

___________________________________________________________

6.      What does “job-hopping” mean in Chinese ? __________________________________________________________

 

同学们，如果你已完成了前面的所有试题，并已检查完毕。你可以做这道附加题，本题不计入总分。挑战一下自己吧！
任务型阅读 (10分)
Most Americans enjoy moving from one place to another. For example, they often drive their cars 120 to 160 kilometers away just to have dinner with a friend or even fly to London or Paris just to watch a football match. In some states only one person in five lives in a place for more than five years. 3.One may be born in one city, and go to school in another. He may finish his middle school in two or three cities, and then go to college far across the country. 4.When he begins to work, he may move from job to job. Moving from one job to another , which is called “job-hopping”, is very common in the United States.
Job-hopping is good to workers because every change of a job gives them a chance to get better pay. And job-hopping also gives bosses the chance to get new ideas and skills from the workers.
A.根据短文内容，回答下列问题。(每题2分)
1. How many people live in a place for more than five years in some places?
___________________________________________________________
2. How far could an American drive if he wants to have dinner with a friend?
___________________________________________________________
B.请将短文中的划线部分的句子翻译成中文。(每题2分)
3. __________________________________________________________
4. ___________________________________________________________
C.按要求完成下面各题。(每题1分)
5. What does “job-hopping” mean in English?
___________________________________________________________
6.    What does “job-hopping” mean in Chinese ?       __________________________________________________________