外语
单选题Which of the following can serve as the best title of this passage?A The Prefix Mach.B The Speed of Sound.C The Frequency of Sound.D The Intensity of Sound.
题目
The Prefix Mach.
The Speed of Sound.
The Frequency of Sound.
The Intensity of Sound.
参考答案和解析
主旨题。文章首段介绍了测声速的方法，第二段就介绍了声音的产生和频率，第三段介绍了声音的强度，第四度介绍了不同介质中声速不同。综合全文，选项B“声速”概括了文章的全部内容，因此是最佳选择。其余三项只涉及文中的一部分内容，都不宜作为文章的标题。
相似问题和答案
第1题：
Which of the following can serve as a title of this text?
[A] Hard Time for the Preschoolers
[B] Prosperity of Private Schools
[C] The Problem for Public Schools
[D] Americans 's N0 1 Concern
45.A该题为主旨题。全文主要讲述儿童进入顶级私立学校困难，名额少，学校筛选过程谨慎，许多父母都在提早为学龄前孩子做准备。选项A“学龄前儿童的艰难时代”符合文意；选项B“私立学校的繁荣兴旺”，只是涉及文章的部分内容，文章主旨围绕的是学生申请私立学校困难这一现象，而不是私立学校本身；选项C“公立学校的难题”，而文中并没有提到；选项D“美国人最关注的问题”即教育，涉及教育方面的内容有很多，本文谈论的仅仅是其中一方 2010年9月笔试真卷参考答案及精析第5页（共12页）面，该说法过于宽泛，B、C、D均不符合文意，故选A。
第2题：
B.Listen and decide on the best title for the passage.
C.Listen and underline the words the speaker stresses.
D.Listen to pains of words and tell if they are the same.
第3题：
Which of the following might be the best title for the passage?
A．New Railway Standards
B．Big Railway Dreams
C．High—speed Bullet Trains
D．International Railway Network
第4题：
Florence Nightingale at Hospital.
Changes to Hospital Made by Nightingale.
Nightingale’s Contribution to Nursing.
Lifesaver Hero—Florence Nightingale.
主旨大意题。通读全文后可知，本文既介绍了南丁格尔对医院和护士行业做出的改变和贡献，也介绍了她的生平以及她进入护士行业的过程。由此可以判断，本文是一篇典型的人物传记，选项D较为全面地概括了文章主旨，A、B、C三项过于片面，故答案为D项。
第5题：
Eliminating Starvation
Combating Malnutrition
Importance of Calories
Improving Our Diet
主旨题。录音首句便指出malnutrition（营养不良）的问题，接着对该问题出现的原因、造成的危害及解决方法等进行了详细的分析。由此可推断，该段录音主要讲述如何应对营养不良问题。因此选项B的内容与录音主要意思相符。
【录音原文】
In most corners of the world malnutrition is plainly a matter of outright insufficiency of food for population—where the majority of the people do not obtain enough food calories to meet minimal needs for support of physical work and for maintenance of health. Elsewhere the problem may be not one of insufficient calories but of lack of specific nutrients essential for health.
In Latin America, as in other places, the dread protein deficiency disease kwashiorkor is taking its heavy toll on children’s lives. Strategic vitamins and minerals may be lacking due to traditional diets which are nutritionally imbalanced. Here people continue their eating pattern year after year without knowledge of what their dietary habits are doing to themselves and to future generation. With a basic knowledge of nutritional needs and deficiencies, efforts would be directed to finding food substitutes which could meet these needs. Mixtures of vegetable proteins, like soybeans and peanuts, could provide an abundance of cheap, useful protein where meats, eggs, and milk are not within economic reach of large groups in the population. Efforts could also be expanded on increasing the agricultural productivity in specific regions; where large areas are given over to relatively inefficient use as grazing land, the intensive production of vegetable protein crops could bring remedial nutrition to an undernourished population.
第6题：
Which of the following is the best title for the passage?
A) Human behavior.
B) Creatures of Society.
C) The Science of Custom.
D) The Functions of Cultures.
答案：C
[试题分析] 文章主旨题。
[详细解答] 提问的更是全文的主旨，因为一篇文章的题目应该概括全文的主旨，否则就不是一个好题目，答案应该是C。
第7题：
Crowdfunding.
How to Support the Artists?
To Gain Profits from the Internet.
Let’s Invest!
主旨大意题。本文主要介绍了什么是crowdfunding及其发展，A最符合文意。B“如何帮助艺术家?”未能突出crowdfunding的巨大作用；C“从网络中获取利润”及 D“让我们投资吧!”与文章主题不符，故都可排除。
第8题：
Which of the following could serve as an appropriate title for the passage ?
A．The Theory of Division of Labor
B．Adam Smith as the Discoverer of Division of Labor
C．Adam Smith, the English Economist
D．Division of Labor, an Efficient Way of Organizing Work
解析：文中主要论述了劳动分工以及分工在组织劳动上的巨大效率。因而选D。
第9题：
Traffic Safety
Be Careful
How to Drive a Car
A Traffic Accident
主旨大意题。通过全文，作者在介绍交通安全的相关信息，其他均不符合文意。故选A项。
第10题：
Main Characters ofPopular Books
The #1000BlackGirlBooks Campaign
Whitewashing in the Publishing Industry
Further Reading for Kids and Teenagers