如下程序段定义了学生成绩的记录类型，由学号、姓名和三门课程成_爱下问搜题

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问题单项选择题

如下程序段定义了学生成绩的记录类型，由学号、姓名和三门课程成绩(百分制) 组成。 Type StudNo As Integer name AS Stringscore(1 to 3) As Single End Type 若对某个学生的各个数据项进行赋值，下列程序段中正确的是______。

A．Dim S As Stud Stuno＝1001 Stuname＝“舒宜” Stuscore＝78,88,96

B．Dim S As Stud no＝1001 name＝“舒宜” score＝78,88,96

C．Dim S As Stud Stuno＝1001 Stuname＝“舒宜” Stuscore(1)＝78 Stuscore(2)＝88 Stuscore(3)＝96

D．Dim S As Stud no＝1001 name＝“舒宜” score(1)＝78 score(2)＝88 score(3)＝96

答案

参考答案：D

解析：用户定义数据类型是使用Type语句定义的数据类型。用户定义的数据类型可以包含一个或多个任意数据类型的元素。由Dim语句可创建用户定义的数组和其他数据类型。用户定义类型变量的取值，可以指明变量名及分量名，两者之间用句点分隔。本题选项A、C中的变量名均用的是类型名，所以错误。“score(1 to 3)As Single”定义了3个单精度数构成的数组，数组元素为score(1)至score(3)。

问答题

自选题：（只重点校做）为了探究“液体内部压强与哪些因素有关”，部分同学提出如下猜想：

猜想1：液体内部的压强，可能与液体的深度有关；

猜想2：同一深度，方向不同，液体的压强可能不同；

猜想3：液体内部的压强，可能与液体的密度有关．

为了验证上述猜想1和猜想2，他们用压强计研究水内部的压强，得到的数据如下表：

序号	1	2	3	4	5	6	7	8	9
深度（cm）	5	5	5	10	10	10	15	15	15
橡皮膜方向	上	下	侧	上	下	侧	上	下	侧
压强计液面高度差（cm）	4.3	4.3	4.3	9.2	9.2	9.2	13.8	13.8	13.8

（1）请你分析实验数据并回答：为了验证猜想1，应选序号为______的实验数据（填写序号）；猜想2的结论______（选填“正确”或“不正确”），根据数据的分析，可得出的结论是：______；

（2）为了验证猜想3是否正确，在上述实验的基础上，请你设计实验探究方案，写出实验步骤．

阅读理解

In classrooms across the USA, students from different speech backgrounds give speeches in English. It is important to remember that the major goal of the speech is communication of ideas, not perfection of language skills. Therefore, as you listen to a speaker who is not fluent in the language, seek to understand what is being said by concentrating on the ideas of the message rather than on the specific words of the speaker. This may require a special kind of patience as well as the ability to take the perspective (视角) of the communicator. Perspective taking means that you can put yourself in the other person’s shoes. That is, you try to imagine what it would be like to give a speech in a foreign language to a group of native speakers of that language. Keep in mind that non-fluency is not linked to low intelligence or lack of education~ it is linked to experiences with the second language.

These guidelines can help you be a better listener in these situations.

1. Approach the speech with a positive attitude, and expect to understand.

2. Listen all the way through. Make special efforts to keep your mind from wandering in the middle of the speech. It may help to take notes.

3. Plan to give proper nonverbal (非语言的) feedback to prove your interest, patience, and support for the speaker.

4. Control your negative emotional responses. Let's face it, it is difficult to deal with linguistic barriers (语言障碍), and people often get disappointed or bored when there are language differences.

5. Do not laugh, even if the speakers do, at their language skills. Often they laugh nervously to relieve tension.

68. What is the main idea of this passage?

A. How to become a good listener.

B. How to become a good speaker.

C. We should take a positive attitude towards speech.

D. How to communicate with others

69. The underlined phrase "put yourself in the other person’s shoes" in the first paragraph means ____.

A. to know one's shoes is to know one's problem

B. try to wear the other person’s shoes

C. understand others by trying on their shoes

D. look at something from the point of others

70. What can we learn from the passage?

A. People should be strict with speakers speaking in a foreign language.

B. Taking notes helps keep your mind from wandering in listening to a speech.

C. Whenever the speaker is nervous, he laughs.

D. It's hard to concentrate when the speaker is not fluent.

71. What advice is given on listening to a speech?

A. Believing you can understand every word of the speech.

B. Showing your support for the speaker nonverbally.

C. Laughing when the speaker laughs at himself.

D. Commenting on the speech at times.