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单选题According to the passage, which of the following is true of the ratios of oxygen isotopes in ocean sediments?A They indicate that sediments found during an ice age contain more calcium carbonate than sediments formed at other times.B They are less reli

题目
单选题
According to the passage, which of the following is true of the ratios of oxygen isotopes in ocean sediments?
A

They indicate that sediments found during an ice age contain more calcium carbonate than sediments formed at other times.

B

They are less reliable than the evidence from rocks on land in determining the volume of land ice.

C

They can be used to deduce the relative volume of land ice that was present when the sediment was laid down.

D

They are more unpredictable during an ice age than in other climatic conditions.

E

They can be used to determine atmospheric conditions at various times in the past.

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相似问题和答案

第1题：

According to the passage, which is true about the ocean?

A. The waters of the ocean came from rain water.

B. The ocean was formed from the, lighter rock materials.

C. The vast single ocean formed about 200 million years ago.

D. The ocean covered the whole surface of the earth at very beginning.


正确答案：A

45．答案为A。选项A符合第二段内容。选项B与原文不符；选项C与第三段最后一句及最后一段不符；选项D与原文第二段最后一句不符。

第2题：

Which of the following is NOT true according to the passage?__________

A.Skyscrapers provide more usable space than other buildings
B.The skyscrapers first appeared in the late 1960s
C.Where there are skyscrapers, television reception is poor
D.The two World Trade Center towers are skyscrapers

答案：B
解析：
是非判断题。B项的内容与文章不符，本文虽未直接提到摩天大楼是什么时候出现的，但间接否认摩天大楼是在20世纪90年代末期首先出现的：“…and new steel-and—glass skyscrapers were widelycriticized．”这一个“新”字是说这种钢材玻璃型摩天大楼是在20世纪60年代末期出现了，而不是说摩天大楼是在这一时期出现的。

第3题：

Which of the following is NOT TRUE according to the passage？

A.The zoo needed more information about the woman.

B.A baby elephant was hurt during the war.

C.The woman lived quite near the zoo.


正确答案：B

第4题：

单选题
It can be inferred from the passage that the isotope record taken from ocean sediments would be less useful to researchers if which of the following were true?
A

It indicated that lighter isotopes of oxygen predominated at certain times.

B

It had far more gaps in its sequence than the record taken from rocks on land.

C

It indicated that climate shifts did not occur every 100,000 years.

D

It indicated that the ratios of oxygen 16 and oxygen 18 in ocean water were not consistent with those found in fresh water.

E

It stretched back for only a million years.


正确答案： B
解析：
推断题。第三段第四句提到：Because of these advantages, sedimentary evidence can be dated with sufficient accuracy by radiometric methods to establish a precise chronology of the ice ages，所以可知如果海底同位素记录失去了其全球性以及延续性，那么其正确性将会大受影响，故B项是正确的。

第5题：


Which of the following is true according to the passage？( )

A.The visit lasted only five months.
B.The visit coincided with American industrialization.
C.The first part was published in 1835； the second part in 1840.
D.The second part was more optimistic than the first.

答案：C
解析：
细节题。此题需对每个选项进行判断，根据文章可知，A项应为nine months，故错误；托克维尔游览美国发生在工业化之前，B项错误；第二部分比第一部分悲观，D项错误。

第6题：

请阅读短文，完成此题。
When we analyze the salt salinity(盐溶度 ) of ocean waters, we find that it varies only slightly from place to place. Nevertheless, some of these small changes are important. There are three basic processes that cause a change in oceanic salinity. One of these is the subtraction of water from the ocean by means of evaporation. In this manner, the salinity is increased, since the salt stays behind. If this is carried to the extreme, of course, white salt would be left behind; this, by the way, is how much of the table salt we use is actually obtained.
The opposite of evaporation is precipitation, such as rain, by which water is added to the ocean. Here the ocean is being diluted so that the salinity is decreased. This may occur in areas of
high rainfall or in coastal regions where rivers flow into the ocean. Thus salinity may be increased by the subtraction of water by-evaporation, or decreased by the addition of fresh water by precipitation.
Normally, in hot regions where the sun is very strong, the ocean salinity is somewhat higher than it is in other parts of the world where there is not as much evaporation. Similarly, in coastal regions where rivers dilute the sea, salinity is somewhat lower than in other oceanic areas.
A third process by which salinity may be altered is associated with the formation and melting of sea ice. When seawater is frozen, the dissolved materials are left behind. In this manner, seawater directly beneath freshly formed sea ice has a higher salinity than it did before the ice appeared. Of course, when this ice melts, it will tend to decrease the salinity of the surrounding water.
In the Weddell Sea, the densest water in the ocean is formed as a result of this freezing process, which increases the salinity of cold water. This heavy water sinks and is found in the deeper portion of the oceans of the world.

Which of the following statements is TRUE according to the passage?
查看材料

A．Oceanic salinity has great effect on sea life.
B．Many factors combine to cause changes in oceanic salinity.
C．The movement of the water is related to the amount of salt.
D．The temperature of the water has much to do with the oceanic salinity.

答案：D
解析：
按照出题顺序，此题考查的是海水盐度变化的第三个原因。根据第四段可知，海水冻冰后，杂质析出，因此冰下的海水比冰的盐度高；冰融化后，海水盐度又会降低。所以答案为D，即海水温度与盐度有很大关系。

第7题：


Which of the following constitutes the best title for this passage？( )

A.In the Unthinking Age，Seeing is Believing
B.Images Matter Less Today Than in the Past
C.Democracy Has Lost Its Appeal Nowadays
D.Images in the Information Age

答案：A
解析：
主旨题。文章意在展示信息时代影像的影响力，说明人们总是容易相信眼睛看到的东西。故本题选A。参考译文：如果我们能弄清楚朝鲜在网上发布的那些令人费解的视频有何含义，也许我们在应对朝鲜的核挑衅行为时能更自如些。朝鲜最近发布的一段视频中出现了如下内容：一名正在做梦的男子、一些朝鲜文字、起火的摩天大楼，以及正飞越太空的火箭。视频的背景音乐是钢琴家弹奏的《天下一家》，节奏处理得很哀婉。这是一种无害的幻想，还是一种正式的挑战？针对这一视频西方是否应该发表声明回应？西方是不是也应该发布一段自己的视频？这些问题很难回答。传统媒体正在被互联网“取代”。然而，信息经济释放的“信息”往往难以解读，炮制这些“信息”的目的也难以辨明。电影研究学者斯蒂芬·阿普康在本周出版的《影像时代》一书中称，如今可以探讨一种建立在解读此类非语言信息基础上的新型“读写能力”。阿普康这本书往低了说是关于电影“语言”的，但该书还蕴含着更深的哲学思想。如今，我们的文化日益全球化。尽管文化依然依赖于文字，但文字已越来越多地被包含在影像中，最终留在人们记忆中的也是影像。南加州大学电影艺术学院院长伊丽莎白·戴利认为，写作在今天的地位与文艺复兴前夕的拉丁语类似，是一种学术界使用的语言。YouTube网站上的视频以及其他影像材料则相当于当时的意大利语。它们都是人们日常使用的语言，也是许多创新思维的媒介。一直以来，形象在公共辩论中所起的作用比我们承认的要大。几乎没人在乎理查德·尼克松在1960年与约翰·肯尼迪的总统辩论中整体发言质量略胜一筹，他们只看到这位共和党人胡子拉碴、仪容不整。阿普康援引一位神经科学家的话说，人们如此习惯于捕捉一些微妙的信号，以至于他们往往在看到政治人物的第一眼就“立刻”决定自己是否喜欢这个人。而如今，那些情感冲击力巨大、直观的非语言信息能够得到更广泛的传播。比如，2009年6月，在伊朗总统选举不合法引发抗议期间，一个名叫娜达·萨勒什·阿哈·索尔丹的女孩被枪杀的视频传遍了全世界。而在那部令观众动容的纪录片《科尼2012》(该视频在6天内被浏览了1亿次)中，一些美国政治积极分子呼吁军方逮捕一个乌干达军阀。阿普康指出，视觉是人类最信任的感官，因此需要谨慎对待。当前存在一种挥之不去的危险，就是那些虐待过程的影像可能令公众极度不安，促使他们要求政府出兵。这可以说正是1992年索马里大饥荒时的情况，当时美国在仓促间决定对索马里进行军事干预。阿普康表示，将来我们可能需要“同时具备怀疑精神和敏锐的判断力”，让民众能够“比较辩证地评论呈现在自己面前的内容”。但这一点很难实现。当影像激发出来的情感与语言的论证逻辑得出同一结论时，人们通常能够轻易做出决定。然而当两者的结论相互抵触时，人们必然会偏向其中一方。直到最近，国家治理、学生研究和司法判决的核心才将我们的强烈感情从谨慎思维中净化出来。然而，如今的影像极度丰富和富有冲击力，已经主导了我们的思维过程。尽管阿普康喜欢YouTube的即时性，但他担心，政治宣传人员很快就将学会编造故事来满足“隐藏的心理需求”，从而轻易操控选民。民众对投票的看法有两种。第一种是基于身份来投票。你是农民，那么你就投票给最偏向农民的候选人。第二种则是基于观点来投票，而不是考虑自己的身份。你认为销售税应该取代所得税，那么你就投票给持相同观点的候选人。然而，现在这种基于影像的沟通过程，与身份或观点几乎没什么关系。这种过程只与“最低公分母原则”有关，在这种原则下，你只是一种叫做人类的动物而已。对这个问题没什么显而易见的解决办法。就算我们拥有阿普康所说的怀疑精神，某种特定机制在感知、吸收和解释信息时会“带有”特定风格。你可能不会觉得印刷机与“新教”有任何关联。然而印刷机似乎是新教兴起的先决条件。与此类似，我们的民主制度尽管不太完美，却代表了文字文化发展的顶峰。阿普康告诉我们，在1960年的几次总统辩论中，肯尼迪“利用了一种能够操纵心理的东西，比起单纯的事实，这种东西具有更为原始的力量”。回想起来，那是个不祥的时刻。一旦你发现了这种东西，民主制度岂不是注定会丧失一些吸引力？就像一部你已预知结局的侦探小说一样。

第8题：

29． Which of．the following is NOT true according to the passage?

A．It’s more difficult for boys to learn to write．

B． Girls often run and throw balls earlier than boys．

C． Young boy chimps in Tanzania may hunt and throw sooner than young girl chimps．

D． Boys are very athletic．


正确答案：B
29.B【解析】由第四段最后一句话可知B项的说法是错误的。

第9题：

单选题
Which of the following statements about the Grimm's fairy tales is TRUE according to the passage?
A

They were originally intended to be children's stories.

B

Generally speaking, the tales that have endured can help children deal with the challenges life bring to them.

C

A large number of the tales made it to the modem age.

D

They are less violent than the children's stories being written today.


正确答案： C
解析：
细节判断题。根据文章最后一句"But the deeper answer is that the tales that have lasted are magical adventures that help children deal with the struggles and fears of their everyday lives.''可知这些故事能够广为流传的深层次原因是它们能帮助孩子们应对生活中的困难和恐惧。这与选项B的说法一致。

第10题：

单选题
According to the passage, which of the following is NOT TRUE?
A

The Boston Tea Party took place in 1773.

B

Europeans figured out ways to use coffee during the 1670s.

C

During the 1770s, more and more Americans began to drink coffee.

D

Coffee is a refreshing drink.


正确答案： B
解析：

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