问题 单项选择题 B型题

杏仁苷酶可以水解()

A.β-果糖苷键

B.α-果糖苷键

C.β-葡萄糖苷键

D.α-葡萄糖苷键

E.α-阿拉伯糖苷键

答案

参考答案:C

阅读理解与欣赏

阅读文段,回答问题。

别让委屈再版

陈之藩

  记得在小学的时候.每星期有作文课。国文教师除了在作文卷上有批语外,还把全班的作文排好了名次,当堂唱名发还。如名次排在后面,显得非常难堪,于是大家对作文都很努力。我本来就喜欢作文,再加上努力,所以作文发还时,常是名字在前几名之中。

  一次作文,题目是“北风”还是“春风”我已记不清了,作完后自己很得意。当时觉得下星期发还时,我一定是在前几名之中。没有想到,不仅前几名没有我,甚至中间也没有,而是排在最后一个。我根本不明白是怎么回事了。

  下了课,去问国文老师?老师说:“这不像你这个小学生作的,一定是抄自什么杂志上的。”我惊讶得不得了。我说:“确实是我作的。”老师说:“你不可能作这么好。你是抄的。你如果说你不是抄的,拿出证明来!”我反抗也无从反抗起,委屈地哭了一场。

  小时候的多少事情,现在儿乎都忘了,惟独这次所受的委屈,总是记得清清楚楚。

  事情竟然无独有偶,我在大学三年级时,又出现了一次类似的事。那是考交流电路的课,有一道最低还是最高劝率的问题,教授所讲过的是用微积分求最大或最小的方法。我在考试时,嫌那个方法麻烦,竟异想天开?用几何作圆,利用切线的关系,找出答案来。那一次考试,我又是很得意,却没有想列这一题竟然得了零分。——教授说我不会微积分;而这个几何方法呢,一定是从别处抄来的。于是我在小学所受的委屈再版了一次。

  时光流水似的逝去,我在美国当了教授,又遇到一次类似的事,不过我扮演的不是学生,而是教师的角色。

  有一个美国学生提交一篇学期论文。当作期末考试。我翻来覆去地看他这篇论文,发现不仅风格清新,而且创新满纸,令人不能相信是一个大学生所作。

  我很自然地怀疑他是从什么地方抄来的。问题就这么极端:如果是抄来的,只有给不及格;如果不是抄来的,那就太好了。我到图书馆查了两天最新到的期刊,看看有无类似的东西却不得要领。于是请教一位同事,问他该怎么办。

  我这位同事对我提出的问题,倒显得有些惊异。他说:“如果你不能查出你的学生是抄来的,你就不能说他是抄来的。你的学生并没有义务去证明他不是抄来的,这是罗马法的精神。文明与野蛮的分际,就在这么细微的差别上。我觉得这是常识,你却觉得这是个问题,好奇怪!”我不禁一怔:幸亏同事提醒,否则,那种委屈又会再版。

  听了这一番教训后,我倒没什么惭愧的感觉.而是想起中国文化中好多好多莫须有与想当然的故事。

                                (文章的标题及内容有改动)

注:国文:旧时指中小学的语文课。 莫须有:原意是“也许有吧”,后用来表示凭空捏造。

1.本文写了三件事,请任选一件事,用一句话简要概括其内容。

 ___________________________________________________________

2.本文围绕中心选取了三个“类似的事”作为材料;三个材料的“类似”点是:________________。

3.第二件事中,“于是我在小学所受的委屈再版了一次。”这里,“再版”一词的意思是: 

 ___________________________________________________________

4.第三件事中,当了教授的“我”对学生作业(论文)的处理是很慎重的,这从哪些地方可看出来?

 ___________________________________________________________

5.在如何看待学生作业的问题上,国外那位同事的认识是很高的。他是从什么高度来谈论的。

 ___________________________________________________________

6.你受到过与“我”做学生时类似的委屈吗?如果受到过,请谈谈你当时的感受和后来的认识;如果没有,请给老师们提一两点有关的建议。

 ___________________________________________________________

阅读理解

At a psychology conference in England years ago, a woman said to me: “I’ll knock you up in the morning.” I was taken aback by her strange suggestion, but it occurred to me that I might not have understood what she really meant. As it turned out, what she had meant was, “I’ll knock on your door in the morning so that we can meet for breakfast to discuss the panel we’re on.”

This example of the difference in the meaning of “knock you up” in British and American English shows the complicated situations that can result from cultural misunderstandings. A cultural misunderstanding occurs when something — a word, gesture, object, social context, or almost anything you can think of — has a different meaning in two cultures. Sometimes the misunderstandings get resolved, sometimes they lead nowhere, and sometimes they can become the starting point of something much more extreme, from love to war.

Race is one area where cultural misunderstandings are common. We Americans tend to assume that racial categories are biological rather than social, so it may not occur to us that people from other cultures have a different set of racial concepts and classify themselves and us differently. Some African Americans complain that certain immigrants from other countries, such as Haiti or Jamaica, “act as if they aren’t black.” The cultural misunderstanding is that, in the immigrants’ countries of origin, they would never describe themselves as “black”. This doesn’t mean that they think they are white. It just means that their cultures have more categories, like marabou or grimaud in Haiti, or fair or brown in Jamaica, than are used in the United States. Meanwhile, white people in America, unaware of this cultural diversity, sometimes refer to all darker-skinned people as “black” without realizing that an issue exists.

Resolving cultural misunderstandings can clear the air or even lead to laughter. Sometimes, though, when it comes to race, unidentified cultural misunderstandings can create tension, unhappiness and distrust.

小题1:The main purpose of the first paragraph is to       .

A.show that language misunderstandings would cause big problems

B.show the differences between British and American English

C.explain in general what cultural misunderstandings are

D.introduce the idea of cultural misunderstandings with a story小题2:The underlined word “resolved” probably means       .

A.complicated

B.settled

C.accepted

D.noticed小题3:We can learn from the passage that cultural misunderstandings      .

A.mostly come from body language

B.are the most serious social problem in the US

C.can cause negative feelings among people

D.can be cleared up with laughter小题4:What is the author’s opinion about cultural misunderstandings?

A.There’s no need to notice racial differences.

B.Haitians prefer to be described as fair or brown.

C.Cultural misunderstandings based on racial categories may be difficult to spot.

D.Americans are especially likely to misunderstand people from other cultures.