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【答案】13A14C15B
【解析】
这是一篇说明文。文章介绍了人们对智能窗户的研究情况。窗户透光，但不隔热，因此它成为能源研究者
们的研究对象；研究人员致力于研究一种新技术，使窗户在隔热和透光方面能随着人们的需要而调整，这
意味着将来人们可能不再需要使用空调。
【13题详解】
细节理解题。根据第一段最后一句Researchersare
owworki
go
ewtech
ologiesthate
ableawi
dowto
quicklycha
gefromcleartodarka
da
ywherei
betwee
withatur
ofaswitch可知，研究人员现在正在研究
新技术，只要转动开关，窗户就能迅速从明暗变暗。由此可知，窗户可以由亮变暗以节省能源是一项正在
f被研究的新技术，这并不是窗户的重要性。故选Ar