气体熏蒸法是在加热条件下使熏蒸剂挥发变为蒸气，对房间和仪器设备消毒。当选择甲醛为熏蒸

得与失

有一个阿拉伯的的富翁，在一次大生意中亏光了所有的钱、并且欠下了债。他卖掉房子、汽车，还清债务。

此刻，他孤独一人，无儿无女，穷困潦倒，唯有一只心爱的猎狗和一本书与他相依为命，相依相随。在一个大雪纷飞的夜晚，他来到一座荒僻的村庄，找到一个避风的茅棚。他看到里面有一盏油灯，于是用身上仅存的一根火柴点燃了油灯，拿出书来准备读书。但是一阵风忽然把灯吹熄了，四周立刻漆黑一片。这位孤独的老人陷入了黑暗之中，对人生感到痛彻的绝望，他甚至想到了结束自己的生命。但是，立在身边的猎狗给了他一丝慰籍，他无奈地叹了一口气沉沉睡去。

第二天醒来，他忽然发现心爱的猎狗也被人杀死在门外。抚摸着这只相依为命的猎狗，他突然决定要了结自己的生命，世间再没有什么值得留恋的了。于是，他最后扫视了一眼周围的一切。这时，他不由发现整个村庄都沉寂在一片可怕的寂静之中。他不由急步向前，啊，太可怕了，尸体，到处是尸体，一片狼藉。显然，这个村昨夜遭到了匪徒的洗劫，整个村庄一个活口也没留下来。看到这可怕的场面，老人不由心念急转，啊!我是这里唯一幸存的人，我一定要坚强的活下去。此时，一轮红日冉冉升起，照得四周一片光亮，老人欣慰地想，我是这个世界里唯一的幸存者，我没有理由不珍惜自己。虽然我失去了心爱的猎狗，但是，我得到了生命，这才是人生最宝贵的。

老人怀着坚定的信念，迎着灿烂的太阳又出发。

（1）材料中老人所遇到的挫折有哪些？

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（2）老人的思想经历了怎样的变化？变化的原因是什么？

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（3）生活中你遇到最令自己不能忘怀的挫折是什么？你是如何面对的？

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（4）结合自己的经历，谈谈老人的故事对你有何启示？

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—        ?

—Alan Smith. I'm new here.[ ]

A. Your name, please  

B. Are you Alan Smith  

C. What's his name

人工成本是工资总额的一部分。

简述中华人民共和国地方各级政府机构的分类。

阅读理解。

     Diet Coke, diet Pepsi, diet pills, no-fat diet, vegetable diet… We are surrounded by the word "diet"

everywhere we look and listen. We have so easily been attracted by the promise and potential of diet

products that we have stopped thinking about what diet products are doing to us. We are paying for

products that harm us psychologically and physically (身体上).

     Diet products significantly weaken us psychologically. On one level, we are not allowing our brain

to admit that our weight problems lie not in actually losing the weight, but in controlling the consumption

of fatty, high-calorie, unhealthy foods. Diet products allow us to jump over the thinking stage and go

straight for the scale (秤) instead. All we have to do is to swallow or recognize the word"diet" in food

labels.

     On another level, diet products have greater psychological effects. Every time we have a zero-calorie

drink, we are telling ourselves without our awareness that we don't have to work to get results. Diet

products make people believe that gain comes without pain, and that life can be without resistance and

struggle.

     The danger of diet products lies not only in the psychological effects they have on us, but also in the

physical harm that they cause. Diet foods can indirectly harm our bodies because consuming them instead

of healthy foods means we are preventing our bodies from having basic nutrients (营养成分). Diet foods

and diet pills contain zero calories only because the diet industry has created chemicals to produce these

wonder products. Diet products may not be nutritional, and the chemical that go into diet products are

potentially dangerous.

     Now that we are aware of the effects that diet products have on us, it is time to seriously think about

buying them. Losing weight lies in the power of minds, not in the power of chemicals. Once we realize this,

we will be much better able to resist diet products, and therefore prevent the psychological harm that comes

from using them.

1. From Paragraph 1, we learn that _____.

A. diet products fail to bring out people's potential

B. people have difficulty in choosing diet products

C. diet products are misleading people

D. people are fed up with diet products

2. One psychological effect of diet products is that people tend to _____.

A. try out a variety of diet foods

B. hesitate before they enjoy diet foods

C. pay attention to their own eating habits

D. watch their weight rather than their diet

3. In Paragraph 3, "gain comes without pain" probably means _____.

A. losing weight is effortless

B. it costs a lot to lose weight

C. diet products bring no pain

D. diet products are free from calories

4. Diet products indirectly harm people physically because such products _____.

A. are over-consumed

B. lack basic nutrients

C. are short of chemicals

D. provide too much energy

5. Which of the following shows the structure of the passage?

A.  B.  C.  D.

         CP: Central Point   P: Point   Sp: Sub-point (次要点)   C: Conclusion