泄泻腹痛，泻下急迫，粪色黄褐，气味秽臭，肛门灼热，舌苔黄腻宜选（） A.藿香正气散

（4分）请用所学的知识回答下列问题：

（1）为什么油库、面粉厂都要严禁烟火？

（2）某温度下，华雪同学用纯净的氯化钠固体配制好5%的氯化钠溶液后，用pH计（精确测定溶液pH的仪器）测得该氯化钠溶液的pH=6.5，于是得出氯化钠溶液呈酸性的结论。你认为华雪同学的结论是否正确？若不正确，还需要增加什么对比实验？

阅读理解。

　　一个男孩，小学四年级时，随父母来到了河南五七干校，在五七干校的子弟学校读书。一天，语文老师布置了一篇命题作文，题为《早起的鸟儿有虫吃》，1 3岁的他“改”了标题，写了一篇叫《早起的虫子被鸟吃》的文章。于是，他和老师围绕这个命题展开了激烈的争论。老师让他当着班上同学的面说100遍自己是最没出息的人。男孩委屈极了，他的委屈变成了愤怒的喷发，结果他被学校开除了。     

　　1977年，恢复高考，许多人想通过高考改变自己的命运。然而，他记忆不好，不擅长考试，成了“负状元”，名落孙山，当了一名工人。后来，他恋爱了，但女友的父母认为女儿必须嫁一个知识分子，好出人头地。于是女友便离他而去。他又一次委屈极了，而且痛苦不堪，一周内瘦了 10公斤！上天好像就是这样捉弄着他。那时他产生了一个“特农民”的想法，开始自嘲能找出一条不上大学也能让对方后悔的方法。他想起自己小时候作文还不错，于是决定写作，写童话。未曾想，他写的童话孩子们很喜欢。他就不停地写呀写呀，这一写就是20年，写了 1000万字的童话。他就是中国童话大王“皮皮鲁”之父郑渊洁。     

　　委屈的郑渊洁，为了排遣心中的愤懑，洗刷以往的屈辱，他勇敢地拿起了笔，孜孜不倦，不屈不挠，终于用自己手中的笔证明了自己的能力。     

　　这也使人想起以前美国有一位毫无声望的年轻律师。一次，他为了一件重要的诉讼事件赶到芝加哥。当地几位著名律师对他毫无欢迎的表示。他跑去拜访他们，也到处受人白眼。因为那些律师自视清高、目中无人，认为自己和这样一个年纪轻轻、资格浅的人往来未免有失身份。然而，他并未因此而灰心丧气、意志消沉，而是从中受到警策，锐意进取、挑战自我。他说：“我从人们的白眼中，看出自己的学识经验实在还远不够用。我发现我自己应该学习和尚未学习的事还多着哩！”于是，他发奋努力，矢志不渝，果然获得了很高的地位，当上了总统。他就是亚伯拉罕?林肯。     

　　人处在逆境，会遭到挫折、贫穷以及世俗的磨难、压迫和围困。弱者会因此自暴自弃，一蹶不振，强者则愈挫愈奋，勇往直前。因此，如果你正处在逆境中，你不妨将你所受的屈辱与委屈看做是一根鞭子。只要你正确对待这根“鞭子”，它就会鞭笞、激励着你，书写新的辉煌。

1．郑渊洁的作文题目好不好？请作简要的分析。

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2．本文论述的中心是什么？为了论述中心作者主要采用了哪种论证方法？

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3．请解释“把屈辱当做鞭子”一句中“鞭子”的含义。

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4．分析画线句中加粗词语的表达效果。

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5．文中的郑渊洁和亚伯拉罕?林肯都是把屈辱当做鞭子后而成就一番事业的，你能不能再举出这样的一个事例来？请用简洁的语言概述，100个字以内。

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根据锋移动过程中冷暖气团的替代情况，可分为（）、（）、（）、（）。

Since weeks ago, China has been involved in a worldwide A/H1N1 flu that has already killed more than 80 people in the middle of May, 2009, in Mexico and has turned into a global pandemic．

The central government has asked people entering China from the virus-hit countries to report flu-like symptoms(症状)to the authorities．In an emergency notice issued on Saturday night, the country’s top quality watchdog ordered the Customs to check passengers’ temperature, too．

A Beijing airport official Li said Customs officers are on a high alert(警戒)level．

“Three temperature detectors are now in operation．We’re ready with protection garments and equipment, too．Passengers flying in from Mexico and other A/H1N1 flu-hit countries are being monitored closely,” he said．

The Ministry of Health, however, said yesterday there was no evidence to suggest that a person would contract the disease by eating pork．

Hong Kong, too, has raised its alert level against the flu to “serious”．Secretary for Food＆Health, Mr．York Chow urged people to avoid visiting places from where A/H1N1 flu cases have been reported, and said the virus would be added to Hong Kong’s list of the diseases which have been noticed．

The terrible A/ H1N1 flu has been contracted by about 4000 people in Mexico, and most of the killed were aged between 25 and 45．

The virus has also infected about 5,000 people in the US．The US Center for Disease Control said this kind of virus is spreading from human to human, raising fears of a global pandemic．

53．What is the passage mainly about?

A．A/H1N1 flu killed more than 80 people．

B．A/H1N1 flu is spreading from human to human．

C．China has begun to take steps to prevent A/H1N1 flu．

D．All the people are strongly affected by A/H1 N1 flu．

54．The underlined word “pandemic” in the first paragraph probably means      ..

A．death    B．panic    C．enemy      D．disease

55．Why does the flu cause global fears?

A．Because most people in the world eat pork．

B．Because it’s spreading from human to human．

C．Because we still don’t know the cause of it．

D．Because it has infected about 5, 000 people．

56．We can infer from the passage that        ． 

A．passengers from the United States are being monitored closely

B．a person would be infected by the virus by eating pork

C．students in the middle school are most likely infected by A/H1N1 flu

D．Mr．York Chow said that the virus had been added to Hong Kong’s list of the diseases

井下发生自燃发火时，往往会出现以下何种征兆（）。

A、温度升高

B、湿度增加

C、出现煤焦油味

D、出现烟雾