Rumors were already beginning to ________ that the project might have to be abandoned.
A. circulate B. evaluate
C. applaud D. reject
灵星计算小达人系列答案科目：高中英语 来源：2015-2016学年重庆巴蜀中学高二3月考英语试卷（解析版） 题型：单项填空
Such occasions are rare _______ the customers complain about the service provided by us.
A. that B. what C. where D. when
查看答案和解析>>
科目：高中英语 来源：2016届浙江省宁波市“十校”高三联考英语试卷（解析版） 题型：单项填空
“It is the realization of the Chinese Dream ______ put forward by Chairman Xi ______ presents a vision for national revival and contributes to a new global landscape”, said foreign experts at a dialogue Saturday in Shanghai.
A. which; that B. that; /
C. /; which D. /; that
查看答案和解析>>
科目：高中英语 来源：2015-2016学年江苏盐城中学高二下期中考试英语卷（解析版） 题型：其他题
任务型阅读
请认真阅读下面短文，并根据所读内容在文章后表格中的空格里填入最适当的单词。注意：每空一个单词。
Why Blue LED Lights Won the Nobel
The 2014 Nobel Prize in physics went to three scientists who gave lighting a big change by inventing blue LED lights. A big change in lighting efficiency is under way around the world.
Save and green
LEDs use less energy than other forms of lighting. A typical LED bulb(灯泡) can produce around 83 lumens per watt — a measure of how much brightness you can get from a unit of electrical power — much more efficient than other lighting facilities.
LEDs produce light by passing electric current through a semiconductor, while traditional bulbs pass current through a wire. The wasted heat energy is chiefly why traditional bulbs are so much less efficient.
LEDs also last about 30 times longer than traditional bulbs, and many LED bulb products promise up to 25,000 hours of use — more than 17 years if you used one for about four hours a day.
Lighting the world
The lighting transformation is not only in homes. LEDs are also being used for street lights, public holiday and decorative displays, commercial buildings, and other large energy users.
Car lighting is another application where LEDs are making progress. LEDs used to be used only for daytime running lights, but now many new cars have LED headlights for night-time use.
LEDs also hold promise for bringing light to the more than 1.5 billion people around the world without access to electricity, the Royal Swedish Academy of Sciences noted. Indeed, several proposed solutions to energy poverty include the distribution of LED lights, particularly solar-powered ones.
Digital displays
Without blue LEDs, the world wouldn’t have back-lit smart phones, TV and computer LCD screens, blu-ray(蓝光) players, many forms of lighting, and countless other products.
In the electronics industry, LEDs provide back lighting for LCD screens in many smart phones, laptops, and televisions. The LEDs are more energy efficient and allow for very thin displays.
Blu-ray players use blue LED lasers(激光) to read data off a digital optical disc. When these systems switched from using an infrared(红外线) laser to a blue LED laser, it became possible to store five to 10 times as much data.
LEDs are now being explored for their potential uses to transmit(传送) data from the Internet across open space, similar to WiFi. Such a system could transmit a lot more data than WiFi alone. This high bandwidth is possible because LEDs can turn on and off millions of times per second.
The rise of LED lighting came at a time when people were just starting to be concerned about global warming. Because of LEDs’ energy efficiency, using them for the world’s lighting would affect environmental protection in a positive way.
Why Blue LED Lights Won the Nobel
The reason why blue LED lights won the 2014 Nobel Prize in physics is that they are to 1.______ in big changes in lighting. | |
Save and green | 2._______ with other forms of lighting, LEDs are much more efficient because of the different ways they pass electric current. What’s more, LED bulbs can be 3._______ 30 times longer than traditional bulbs. |
Lighting the world | 4._______ from household applications of LED bulbs, they can also be used as street lights and car headlights. |
Because of their high efficiency, LEDs, especially solar-powered ones, 5._______ to light areas without access to electricity. | |
Digital displays | Many smart phones, laptops and televisions use LEDs to back-light their LCD6._______. |
By using blue LED lasers, blu-ray players are likely to store 7.________ data. | |
People are now exploring more 8._______ uses of LEDs such as transmitting data. | |
9._______ | LED lighting will have a positive 10.________ on environmental protection. |
查看答案和解析>>
科目：高中英语 来源：2015-2016学年江苏盐城中学高二下期中考试英语卷（解析版） 题型：单项填空
________ these messages always seem important at the time, most people can’t really remember them the next day.
A. Now that B. Unless C. While D. Since
查看答案和解析>>
科目：高中英语 来源：2015-2016学年江苏盐城中学高二下期中考试英语卷（解析版） 题型：单项填空
It was 1897________ a European chemist called Dr. Felix Hoffman produced aspirin from this chemical.
A. that B. while C. when D. in which
查看答案和解析>>
科目：高中英语 来源：2015-2016学年江苏盐城中学高二下期中考试英语卷（解析版） 题型：单项填空
The Internet has ________ abundant information ________ has not been evaluated for accuracy.
A. such, as B. so, as
C. such, that D. so, that
查看答案和解析>>
科目：高中英语 来源：2016届北京市海淀区高三下学期期中练习英语试卷（解析版） 题型：单项填空
She works in theatre, ________ in her father’s footsteps.
A. to follow B. following
C. followed D. being followed
查看答案和解析>>
科目：高中英语 来源：2016届河南三门峡陕州中学高三下期尖子生专题训练（五）英语卷（解析版） 题型：书面表达
假如你是李华，最近你在澳大利亚布里斯班的home stay打算来中国旅游并来看望你，来之前有些问题要咨询你，请根据下面home stay的电子邮件用英语回一封电子邮件。
Hi LiHua,
Hope you and your family are well. We have booked a tour to see the sights of China in March. In the travel we plan to fly to Wuhan to see you .How does that sound? Because we are going to stay in your city for two days, so can you keep us informed of your arrangements about our stay and how can we get to your city from the airport? By the way, which hotel we had better reserve in your city?
Waiting for your reply!
Steven and Karen
注意：1. 词数120字左右；
2. 可适当增加细节，以使行文连贯；
3. 写作内容不要透露你所在城市的任何信息，推荐酒店为White Swan Hotel。
Hi Steven and Karen，
I’ m more than thrilled to know that you are going to be with us for two days and___________________________________________________________________________
_____________________________________________________________________________
_____________________________________________________________________________
_____________________________________________________________________________
_____________________________________________________________________________
_____________________________________________________________________________
Looking forward to your coming!
Yours,
LiHua
查看答案和解析>>
湖北省互联网违法和不良信息举报平台 | 网上有害信息举报专区 | 电信诈骗举报专区 | 涉历史虚无主义有害信息举报专区 | 涉企侵权举报专区
违法和不良信息举报电话：027-86699610 举报邮箱：58377363@163.com
