用户名: 密码:  用户登录   新用户注册  忘记密码  账号激活
您的位置:教学资源网 >> 试题 >> 英语试题
高中英语编辑
(北师大版)统考版2022届高三一轮复习选修7Unit20NewFrontiers课时提能练(英语 解析版)
下载扣金币方式下载扣金币方式
需消耗1金币 立即下载
0个贡献点 立即下载
0个黄金点 立即下载
VIP下载通道>>>
提示:本自然月内重复下载不再扣除金币
  • 资源类别试题
    资源子类一轮复习
  • 教材版本北师大版(现行教材)
    所属学科高中英语
  • 适用年级高三年级
    适用地区全国通用
  • 文件大小989 K
    上传用户baibai9088
  • 更新时间2021/6/4 10:37:24
    下载统计今日0 总计4
  • 评论(0)发表评论  报错(0)我要报错  收藏
0
0
资源简介

A

(2020·黄冈市质量检测)One of the things that makes your smart phone so smart is that if you pull it out in the sunit senses that and adjusts the screen brightness to compensate.But it's not a perfect solution.

 “First of allit's still not bright enough — you have to remember how respectable sunlight is” said Shin­Tson Wua physicist at the University of Central Florida.The other problemhe says of the brightened screenis that it kills the battery.So Wu and his colleagues have produced a battery­sparing alternative: an anti­reflective screen coatingbased on the eyes of moths.“Nature is so rich! We can learn a lot from nature.” The thing Wu and others have learned about moths' eyesis that they're unevendotted with tiny projections.That uneven surface reduces the reflection of light off their eyesthought to help the bugs escape predators(捕食动物)and see better in low light.So Wu and his team built a similar surface with tiny dimples (小凹)to cut down on glare.He says the coating could improve the readability of a screen by five to ten timescompared to a normal smart phone screen.The details are in the journal Optica.

The technology hasn't been commercialized yetand that could take a few yearswhich gives researchers time to take advantage of another property of these surfaces — they're flexiblemeaning the possibility of bendable displays.Combining that with the bendy batteries we reported on in a recent podcast (播客)the smart phones of the future could be set for a real transformation.

【语篇解读】 研究人员从飞蛾的眼睛构造中得到启示,研制了抗反射手机屏涂层。这种涂层可以改善屏幕的清晰可辨性,从而减少增亮屏幕时手机电池的使用。

1Why do the researchers develop the anti­reflective screen coating?

ATo brighten the screen.

BTo make profits.

CTo use smart phones in the sunlight.

DTo save the use of battery.

D [细节理解题。根据第二段中的“The other problemhe says of the brightened screenis that it kills the battery.So Wu and his colleagues have produced a battery­sparing alternativean anti­reflective screen coating”可知,研究人员研制抗反射手机屏涂层是为了减少手机电池的使用。]

2What inspired the invention of the screen coating?

AThe predators.

BThe reflection of light.

CThe eyes of moths.

DThe smooth surface.

C [细节理解题。根据第二段中的“an anti­reflective screen coatingbased on the eyes of moths”并结合该段其他内容可知,飞蛾的眼睛启发研究人员研制了防反射屏幕涂层。]

3How does the screen coating work?

AIt helps bugs escape.

BIt slows down reading.

CThe smooth surface protects our eyes.

DThe rough surface decreases the reflection of light.

D [细节理解题。根据第二段倒数第四句中的“That uneven surface reduces the reflection of light off their eyes”以及倒数第三句中的“So Wu and his team built a similar surface”可知,这种屏幕涂层通过其不平的表面来减少光的反射。]

4What do the researchers expect of the screen?

AIt'll transform itself.

BIt'll be environmentally friendly.

CIt'll reach consumers soon.

DIt'll be powered by recyclable batteries.

A [细节理解题。根据最后一段中的“they're flexiblemeaning the possibility of bendable displays”可知,研究人员期望这款屏幕能够变形。]

  • 暂时没有相关评论

请先登录网站关闭

  忘记密码  新用户注册