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 work, "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 works so well and to see if any other gel could create better results.

　　32. What caused Thai to work on lithium-ion batteries?

　　A. She found that batteries gradually wear out.

　　B. She disliked the batteries for her laptop.

　　C. She thought batteries were too expensive.

　　D. She and her team were assigned to invent a new battery.

　　33. Which of the following sentences is TRUE about nanowires?

　　A. They are too weak to carry electricity.

　　B. They last only 7,000 charging cycles.

　　C.They are the main cause of battery degrading.

　　D. They are not suitable to use in batteries.

　　34. The breakthrough may most probably lie in____________.

　　A. a new kind of battery

【山西省运城市康杰中学2018届高考模拟（二）英语试卷】相关文章：

★ 四川省新津中学2015届高三一诊模拟英语试卷

★ 山西省运城市康杰中学2018届高考模拟（四）英语试卷

★ 重庆市第十八中学2017-2017学年高一10月月考英语试题

★ 安徽省蚌埠市五中十二中2015届高三上学期期中考试英语试卷 Word版含答案

★ 山西省原平市第一中学2016-2017学年高一上学期期中考试英语试题 Word版含答案

★ 陕西省宝鸡园丁中学2017-2017学年高一上学期期中考试英语试题

★ 湖北省武汉市汉铁高级中学2016-2017学年高一12月月考英语试题

★ 山西省太原五中2017-2017学年高一12月月考英语试题 Word版含答案

★ 湖南省常德市淮阳中学2017-2017学年高一上学期期中考试英语试题

★ 浙江省富阳场口中学2017-2017学年高一上学期期中教学质量检测英语试题