On Venus there is a lot of_______

A．water

B．carbon dioxide

C．carbon monoxide

D．oxygen

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参考答案

答案解析

【定位】第二段第二句“The difficulty is that Venus is much hotter than the earth and there is only a tiny amount of water there．”和最后一句“In a fairly short time，the algae will breakdown the carbon dioxide into oxygen and carbon．”。
【答案详解】事实细节题。根据第二段第二句可知，金星上只有少量的水，所以A不对；根据第二段最后一句可知，金星上没有氧气，但是有二氧化碳。故选B。

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1 Algae are plants that can_______

A．live in very hot temperatures

B．live in very cold temperatures

C．manufacture oxygen

D．all of the above

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2 Man can land on Venus only when_______

A．the algae have done their work

B．the atmosphere becomes cooler

C．there is oxygen

D．it rains there

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3 根据下面资料，回答题
Material culture refers to the touchable, material " things"--physical objects that can be seen,held, felt, used--that a culture produces. Examining a nation' s material culture can tell us about
the group' s history and way of life. Similarly, research into the material culture of music can help us understand the music culture. The most vivid way, of course, is musical instruments. We can-not hear for ourselves the actual sound of any musical performance before the 1870s when the phonograph was invented, so we rely on instruments for important information about music culture,their remote past and their development.
Here we have two kinds of evidence : instruments well preserved and pictures of instruments in art. Through the study of instruments, as well as preserved paintings, written documents, and soon, we can explore the movement of music from the Near East to China over a thousand years ago,or we can outline the spread of the influence of the eastern countries to Europe that results in the development of most of the instruments on the symphony orchestra.
Sheet music or printed music, too is material culture. Printed versions limit variety because they tend to standardize any song, yet folk music stimulates people to create new and different songs. Besides, the ability to read music notation (乐谱) has a far-reaching effect on musician sand, when it becomes widespread, on the music culture as a whole.
One more important part of music' s material culture is the influence of the electronic media-radio, record player, tape recorder, television, and video cassette, with the future promising talking and singing computers and other developments. This is all part of the "information revolution," a twentieth century phenomenon as important as the industrial revolution was in the nineteenth. These electronic media are not just limited to modern nations; they have affected music cultures all over the globe. They have brought about changes to traditional music instruments.
Research into the material culture of a nation is of great importance because_______

A．it helps produce new cultural tools and technology

B．it can reflect the way of life of the nation

C．it helps understand the nation' s past and present as well as its way of life

D．it can demonstrate the nation' s civilization

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