时间:2016-03-28 07:27:43
词汇：
flip n.& v.用手指轻弹，轻击
tungsten oxide 氧化钨
air conditioner 空调 (器)
jolt n.& v.震摇，颠簸，晃动
refreshing adj.使人清爽的
electrochromic adj.电致变色的
glaze v.装玻璃，用玻璃覆盖
voltage n.电压
chromogenic adj.发色的
air conditioning 空调，空调系统
注释：
1. cutting edge：本意为“(刀片的)刃口，刀刃”;比喻意为“最先进的，科技含量最高的”。
2. anywhere in between witha flip of a switch：就在开或关的一霎那。
3. Uppsala University in Sweden：瑞典的乌普萨拉大学。乌普萨拉是瑞典东部一座城市，位于斯德哥尔摩的西北方向。
答案与题解：
1. A第一段告诉我们窗户因为让阳光进入房间，并且为房间提供热源，所以节约了能源。第二段说，窗户使人们能接触外部世界。所以B、C和D都说明了窗户的重要性。第一段最后一句说，研究者正在实验能让窗户变换亮度，但并没有说已经实验成功，所以A是错误的说法，是正确选择。
2. D 短文第三段的第一句说：windows are the weak link in abuilding，接下来是对这句话分寒冬和炎夏做了说明。所以D是正确选择。
3. C 第四段告诉我们，多年来，科学家已研究出多种通过窗户节能的办法，而smart windows使用的技术使窗户能变换颜色。所以C是正确选择。
4. B 第五段第二句提供了答案。a sheet of glass coated with thin layers of chemicalcompound such as tungsten oxide中的coated是“涂上一层薄薄的……”的意思。
5. C 短文最后一段的第五句提供了答案。
理工类B级完形填空
Warmer Climate Will Bake Tropical Bugs
Global warming could cook tropical insects, with unpredictable knock-oneffects, say researchers who warn that rising temperatures also
(51) tropical frogs, lizards (蜥蜴).
Temperatures are (52) to increase much faster in temperate and polar regionsthan in the tropics. But no-one had looked at how warming would affect insectsand other cold-blooded animals (53) had evolved in tropical regions with littletemperature variation.
Curtis Deutsch at the University of California at Los Angeles and colleaguesanalysed data (54)insect survival and reproduction for 38 species in differentecosystems, and then estimated how these values would (55) with predictions ofclimate change for the 21st century.
The team found that the reproductive (56) of tropical insects tends to peakvery close to the temperatures where they normally live, but (57) sharply athigher temperatures. This means that cranking up the heat only a small amountcan exert a heavy toll, leaving insects unable to reproduce (58) enough to keepup their numbers.
Temperature tolerance
Temperate insects reproduce well over a broader range, and do not live as(59) to their thermal limit, so they can reproduce successfully when theirclimate warms more than in the tropics.
“Tropical insects do very well in a narrow band of temperatures, but movethem above that (60) and they die,” says team member Josh Tewksbury of theUniversity of Washington in Seattle.
The heart of the (61) is temperature tolerance. emperate-zone insects haveevolved to survive the much broader temperature swings of seasonal climates,than have their tropical relatives.
The (62) appears worse for animals that live in hot stable climate of thelower levels of tropical forests. Lizards in clear areas can find shade to cooldown, but those living in the forest are already in the (63), and there’s notmuch they can do to get cooler, Deutsch says.
Too few tropical insects have been studied so far to (64) if any particulargroup will be particularly hard-hit, says Tewksbury. Insects play important (65)in forest ecology, including pollination, and eating detritus to recyclecarbon.
The team are now starting to eva luate how temperature affects ecologicalinteractions of insects with other species, including crops such as Africancorn.
Journal reference: Proceedings of the National Academy of Sciences (DOI:10.1073/pnas.0709472105)
Climate Change – Want to know more about global warming: the science, impactsand political debate? Visit our continually updated special report.
Endangered species – Learn more about the conservation battle in ourcomprehensive special report.
参考答案：
51. threaten 52. expected 53. that 54. On 55. change
56. rate 57 drops 58 fast 59 close 60. range
61. problem 62. effect 63. shade 64 tell 65. roles