【名词&注释】
单倍体(haploid)、能源消耗(energy consumption)、分类学(taxonomy)、区域性(regional)、城市人口(urban population)、葫芦藓、植物体(plants)、接合孢子(zygospore)、近年来(recently)、木栓形成层(cork cambium)
[单选题]匍枝根霉的接合孢子(zygospore)为( )。
A. 单核、双倍体
B. 多核、双倍体
C. 多核、单倍核
D. 单核、单倍体
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举一反三：
[单选题]Thebiggestwhaleis___bluewhale,whichgrowstobeabout29meterslong—theheightof___9-storybuilding.
A. the;the
B. a;a
C. a;the
D. the;a
[单选题]数值分类学的优点之一是客观性较强。( )
A. 正确
B. 错误
[单选题]EAll too often , a choice that seems sustainable（可持续的）turns out on closer examination to be problematic. Probably the best example is the rush to produce ethanol（乙醇）for fuel from corn . Corn is a renewable resource —you can harvest it and grow more, almost limitlessly . So replacing gas with corn ethanol seems like a great idea .
A. One might get a bit more energy out of the ethanol than that used to make it, which could still make ethanol more sustainable than gas generally, but that’s not the end of the problem. Using corn to make ethanol means less corn is left to feed animals and people, which drives up the cost of food. That result leads to turning the fallow land — including, in some cases, rain forest in places such as Brazil — into farmland, which in turn gives off lots of carbon dioxide（CO2）into the air. Finally, over many years, the energy benefit from burning ethanol would make up for the forest loss. But by then, climate change would have progressed so far that it might not help.
B. You cannot really declare any practice “sustainable” until you have done a complete lift-cycle analysis of its environmental（环境的）costs. Even then, technology and public policy keep developing, and that development can lead to unforeseen and undesired results. The admirable goal of living sustainable requires plenty of thought on an ongoing basis.
C. 57. What might directly cause the loss of the forest according to the text?
D. The growing demand for energy to make ethanol.
E. The increasing carbon dioxide in the air.
F. The greater need for farmland.
G. The big change in weather.
[单选题](十)近年来(recently)，长江三角洲在经济发展的同时，出现了热岛效应、咸潮侵袭、滩涂冲刷等一系列环境问题。21. 长江三角洲区域性热岛效应比较明显的主要原因是
A. ①能源消耗加大 ②城市人口剧增 ③水域面积扩大 ④市郊农业发展
B. ①② B． ③④ C． ②④ D． ①③
[单选题]What has Barbara got in her suitcase?
A. Shoes
B. Stones
C. Books
[单选题]平常所见到的绿色、具茎叶和假根的葫芦藓植物体(plants)，其细胞的染色体数目为单倍体。( )
A. 正确
B. 错误
[单选题]茎中木栓形成层(cork cambium)最早起源于表皮或表皮下的皮层细胞。( )
A. 正确
B. 错误
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