问题 选择题

下列能够体现“弱国无外交”“强权即公理”这些霸权主义现象的是

①巴黎和会②华盛顿会议③慕尼黑协定④《联合国家宣言》[ ]

A.①②③

B.②③④

C.①②④

D.①③④

答案

答案:A

阅读理解

Even though global warming may have made the weather more mild, many animals are still hibernating(冬眠). It’s too bad that humans can’t hibernate. In fact we almost did.

Apparently, at times in the past, farmers in France liked a semi-state of human hibernation. So writes Graham Robb, a British scholar who has studied the sleeping habits of the French farmers. As soon as the weather turned cold, people all over the France shut themselves away and practiced the forgotten art of doing nothing at all for months.

In line with this, Jeff Warren, a producer at CBC Radio’s The Current, tells us that the way we sleep has changed since the invention of lighting.

When historians began studying texts of the Middle Ages, they noticed something referred to as “first sleep”, which was not clarified, though. Now scientists are telling us our ancestors most likely slept in separate periods. The business of eight hours’ continuous sleep is a modern invention.

In the past, without the artificial light, humans went to sleep when it became dark and then woke themselves up around midnight. The late night period was known as “The Watch”. It was when people actually kept watch against wild animals, although many of them simply moved around or visited family and neighbors.

According to some sleep researchers, a short of insomnia(失眠)at midnight is not a disorder. It is normal. Humans can experience another state of consciousness(清醒状态)around their sleeping, which happens in the brief period before we fall asleep or wake ourselves in the morning. This period can be a creative time for some people.

Playing with your sleep rhythms(节奏)can be dangerous, as worry may set in. Medical science doesn’t help much in this case. It offers us medicines for a full night’s continuous sleep, which sounds natural; however, according to Warren’s theory, it is really the opposite of what we need.

小题1:The late night was called “The Watch” because it was a time for people ______.

A.to set time to catch animals

B.to remind others of the time

C.to guard against possible dangers

D.to wake up their family and neighbors小题2:We can infer from the last paragraph that people should ______.

A.sleep in the way animals do

B.follow their natural sleep rhythms

C.keep to the eight-hour sleeping way

D.ask doctors for help if they can’t sleep小题3:What is the writer’s purpose in writing the passage?

A.To throw new light on human sleep.

B.To encourage people to sleep less.

C.To give some suggestions on insomnia.

D.To find out people’s hibernating history.

单项选择题

阅读下文,回答91—95题。
一只似鸟非鸟的怪兽——来自中国辽西的古动物明星“顾氏小盗龙”,将登上国际顶级科学刊物的封面。记者从中科院古脊椎动物与古人类研究所获悉,该所徐星、周忠和博士等在世界上首次发现了长着四个翅膀的恐龙化石,这一成果将以长文形式发表在英国《自然》杂志上。国际著名古生物学家、美国堪萨斯大学生态与演化生物学教授理查德·普鲁姆博士专门为此配发评论,称这一发现“不仅进一步拉近了鸟类和恐龙的距离,而且再一次为鸟类飞行树栖说提供了化石证据,也为长期以来争论不休的鸟类飞行起源问题提供了重要信息”。
这次发现的化石共6枚,分别由中科院古脊椎动物与古人类研究所和天津自然博物馆于2001年后在辽西采集或购得。这些恐龙体长大约77厘米,爪子尖锐弯曲,体短尾长,生活在距今约1.1亿到1.2亿年之间的早白垩世。
徐星及其同事研究后发现,它们浑身披着羽毛,其中前肢和后肢上的羽毛形态和着生排列方式与鸟类翅膀一样,并据此推测这种动物曾经长着四个翅膀,很可能具有滑翔能力。“这种形态是首次在脊椎动物中被发现”,徐星推测,“恐龙的后肢翅膀可能是在飞行过程中起到平衡作用,这对于早期飞行是非常重要的。”根据经典模型,鸟类的恐龙祖先在地栖生活中,骨骼形态发生一系列转化,两足奔跑使得恐龙的前肢得以解放,转化为翅膀,后肢则转化为鸟类的姿态。2000年,徐星等人率先发现会爬树的恐龙化石,认为某些小型兽脚类恐龙可能具有树栖习性,从而为鸟类飞行树栖起源说提供了证据。此次,顾氏小盗龙的发现表明,这些小型恐龙不仅生活在树上,重新复活了树栖说,而且它们的运动姿态很可能不同于经典的模型。显然,传统的模型需要重新评价,一些经典的结论可能需要修改。
徐星解释道:“顾氏小盗龙有可能四足爬行于树上,而不是两足直立的奔跑型动物。它们可能经常在树丛之间滑翔,飞行姿态很优美。”

对文中画线部分的理查德·普鲁姆博士评论的解释,错误的一项是( )。

A.鸟类的飞行起源与顾氏小盗龙有关

B.鸟类的飞行起源与树栖有关

C.四翅小恐龙化石证明鸟类飞行树栖有极大可能

D.可了解鸟类的起源,它是从这种小恐龙进化而来