【名词&注释】
使用价值(use value)、美国经济(american economy)、工业革命(industrial revolution)、资金投入(capital input)、中央财政(central finance)、世纪末(century end)、无差别(indifference)、巴拿马运河(panama canal)、全社会(whole society)、资本主义世界市场
[单选题]20世纪末，科学家发现，在东太平洋赤道附近，大洋中脊2600m深处一个裂缝的热泉口周围，聚集着科学上尚未认识的新奇而美丽的生物。研究认为，整个群落的生活依赖于硫细菌。硫细菌的生物能量，主要来源是
A. 光能
B. 电能
C. 热能
D. 化学能
查看答案&解析
举一反三：
[单选题]杨柳科过去一直放在柔荑花序类中，现多赞成将本科移至五桠果亚纲，主要因为杨柳科植物具( )等特征。
A. 具花盘
B. 具蜜腺
C. 侧膜胎座
D. 有托叶
[单选题]
A. marching
B. running
C. passing
D. moving
[单选题]EA rainforest is an area covered by tall trees with the total high rainfall spreading quite equally through the year and the temperature rarely dipping below l6℃．Rainforests have a great effect on the world environment because they can take in heat from the sun and adjust the climate．Without the forest cover，these areas would reflect more heat into the atmosphere，warming the rest of the world. Losing the rainforests may also influence wind and rainfall patterns，potentially causing certain natural disasters all over the world．
A. This action affects the environment as a whole．For example，a lot of carbon dioxide (二氧化碳)in the air comes from burning the rainforests．People obviously have a need for the resources we gain from cutting trees but we will suffer much more than we will benefit.
B. Firstly，when people cut down trees，generally they can only use the land for a year or two．Secondly，cutting large sections of rainforests may provide a good supply of wood right now，but in the long run it actually reduces the world’s wood supply．
C. More than 25％ of the medicines we use today come from plants in rainforests．However，fewer than l％of rainforest plants have been examined for their medical value．It is extremely likely that our best chance to cure diseases lies somewhere in the world’s shrinking rainforests．
D. Rainforests can help to adjust the climate because they ．
E. reflect more heat into the atmosphere
F. bring about high rainfall throughout the world
G. rarely cause the temperature to drop lower than l6℃
H. reduce the effect of heat from the sun on the earth
[单选题]
A. less
B. eventhing
C. more
D. nothing
[单选题]某论文把巴拿马运河(panama canal)开通、印度向英国出口棉花、华工赴美参与修建铁路、法国向俄国输出资本等作为重要证据。该论文的主题最可能是
A. 美国经济的崛起
工业革命在欧洲的扩散
英国“世界工厂”地位的确立
资本主义世界市场的形成
[单选题]It’s helpful to put children in a situation they can see themselves differently.
A. that
B. when
C. which
D. where
[单选题]What is the man going to do?
A. Go to the Chinese restaurant.
B. Watch the football game.
C. Visit a friend downtown.
[单选题]．2009年7月1日起，所有在我国境内生产销售的计算机出厂时都要预装一款名为“绿坝—花季护航”的绿色上网过滤软件。该软件由中央财政资金投入4170万元买断一年服务供全社会(whole society)免费使用，这里的“绿坝－花季护航”软件
A. 是商品，因为有使用价值
B. 不是商品，因为不是有形的实物ks5u
C. 不是商品，因为它由中央财政资金投入买断供社会免费使用
D. 是商品，因为它凝结着无差别(indifference)的人类劳动
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