发布时间 : 星期三 文章福建省福州市2017-2018学年高二下学期期末联考试题英语-含答案更新完毕开始阅读66d5fb7e846a561252d380eb6294dd88d1d23dd8
something that might permit lithium-ion (锂离子) batteries to last forever.
Lithium-ion batteries power most wireless devices. Over time, the batteries lose the ability to hold a charge. Most of these batteries have a life span of about 7,000 charging cycles before they die. One of the reasons lithium-ion batteries degrade is their use of nanowires to carry electricity. Nanowires are etremely thin. A human hair is thousands of times thicer, for eample. Nanowires are etremely efficient carriers of electricity, which maes them useful in batteries. But Thai said their thinness also maes them wea. “Nanowires brea and fracture over time,” she said. “That’s why they lose capacity.” But, Thai had a theory – the nanowires might last longer if covered with a gel (凝胶). She and her team tested this theory. “It was a long process and a lot of wor,” Thai said. The team tried many coverings for the wires. PMMA, a type of plastic, was one of them. The nanowires were coated with PMMA and cycled through charges 200,000 times. The PMMA-coated nanowires showed no evidence of damage. The results suggest that batteries could last forever, without losing charging ability. Thai said 200,000 cycles amount to about three months on just one device.
Thai hopes to continue her research to understand why this gel wors so well and to see if any other gel could create better results. Mya Le Thai said she is enjoying the publicity about her discovery. She said she never epected her research to get media coverage. “It’s ind of cool,” she said. “I’m really glad people are showing interest in my wor and not just in the wor itself, but also in technology and energy.”
32. What caused Thai to wor on lithium-ion batteries? A. She dislied the batteries for her laptop. B. She thought batteries were too epensive. C. She found that batteries gradually wear out.
D. She and her team were assigned to invent a new battery. 33. Which of the following sentences is TRUE about nanowires? A. They last only 7,000 charging cycles. B. They are too wea to carry electricity. C. They are not suitable to use in batteries. D. They are the main cause of battery degrading. 34. The breathrough may most probably lie in ______.
A. a new ind of battery
D. a new way of charging batteries
B. coating nanowires in gel
C. new materials for batteries
35. What may be the best title for the passage?
A. Why batteries are degrading coating
C. Nanowires discovered by scientist battery
第二节七选五（共5小题；每小题2分，满分10分）
根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项）
Why do you go to the library? For boos, yes—you lie boos because they tell stories. ______36______ At one type of library, you can just do that –even though there is not a single boo.
At the Human Library, instead of boos, you can “borrow” people. _______37_______ For a certain amount of time, you can as them questions and listen to their stories, which are as fascinating as anything you can find in a boo. You can spea with a refugee （难民）,a homeless person of a woman living with HIV._______38_____ In other words, the Human Library encourages people to
D. Scientist invents life-long
B. Nanowires trying on new
challenge their own prejudice（偏见）--to truly get to now and learn from someone they might otherwise mae an unfair judgment about.
_____39_____ Ronni Abergel, his brother Dray and some colleagues hosted a four-day event during a major Northern European festival, hoping to raise awareness about violence among youth. After the success of this event, Abergel set up the Human Library Organiation, which has been growing ever since.
The stories these＂boos＂tell range from fascinating to heartbreaing and everything in between. And that is the very point of the organiation—to prove that no person can be summed up in just one word. ________40_______
A. Their life stories are on various topics.
B. People with unique life stories volunteer to be the “boos”. C. Here, difficult questions are epected, appreciated and answered. D. It sees to show people that you truly can’t judge a boo by its cover. E. You hope to be lost in a story or be transported into someone else’s life. F. You don’t need a library card –anyone can come and be part of the eperience. G. The Human Library Organiation was founded in Copenhagen, Denmar in 2000.
第三部分语言知识运用（共两节，满分45分）
第一节完形填空(共20小题；每小题l.5分．满分30分)．
阅读下面短文，从短文后各题所给的四个选项(A、B、C、和D)中，选出可以填入空白处的最佳选项，并标在答题卷的相应位置。
I had just arrived in this Asian country for a one-year teaching position. One day, I too the subway to visit some ancient palaces and temples in the downtown. The following account of what happened to me has taught me much about culture 41 . Since all the 42 were taen, I stood. Suddenly, I felt someone pulling on my bag.
43 I probably was in someone’s way, I moved over slightly. But in one quic motion, I felt my bag removed from my bac, and in a flash it was44 .I turned around to see who the thief was. I looed at the people standing behind me, but didn’t see my bag or anyone 45 .My heart san and I began to 46 .
I glanced around the car and found directly across from me was an elderly lady, and sitting on her lap was my 47 .I tried to get it bac from her lap. But as I began to 48 it up, she quicly grabbed it bac and 49 it. I looed around at the people standing beside me, and those sitting beside her, but no one too any notice of the situation. Trying not to cause a/an 50 ,I tried to negotiate(协商) through gestures. I used my hands as best as I could, but she 51 my requests for my bag and pointed to my bac. She piced up my bag, showing how 52 it was. I finally began to understand. She was holding my bag to 53 me.
At the net stop, a middle-aged woman got on the crowded subway. Another elderly woman sitting down too her bag, 54 it on her lap. They didn’t tal; 55 this older woman was very pleased to sit with this stranger’s bag on her lap throughout her journey.
As the subway pulled into the main downtown station and I was getting ready to get off, the woman 56 handed me bac my bag. But 57 I had a chance to than her, she had disappeared into the crowd.
Sadly, this considerate custom was more 58 to me than if I had been robbed. Everyone bac home had heard of being robbed--that was 59 city behavior --but having a stranger hang on to someone’s bag out of 60 ,in a city of twelve million people-- that was truly unusual. 41. A. loss 42. A. cars 43. A. Deciding
B. aim B. seats B. Epecting
C. difference C. buses C. Admitting
D. cause D. stations D. Assuming