Question

【題目】 Mya Le Thai is a scientist studying at the University of California. She recently discovered a process that may result in batteries that last forever. Thai said she had been frustrated that the batteries for her wireless devices degrade(退化). Over time, they fail to charge fully. She decided to do something about that problem.

At first, she and her team thought about inventing a new battery. But as they experimented, Thai discovered something that might permit lithium-ion batteries(鋰電池) to last forever. Lithium-ion batteries power most wireless devices. Over time, the batteries lose the ability to hold a charge. One of the reasons lithium-ion batteries degrade is their use of nanowires(納米線) to carry electricity. Nanowires are extremely thin. Nanowires are extremely efficient carriers of electricity, which makes them useful in batteries. But Thai said their thinness also makes them weak. “Nanowires break 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(凝膠). She and the team tested her theory. The team tried many coverings for the wires. PMMA was one of them. The PMMA coated nanowires showed no evidence of damage. The results suggest that batteries could last forever, without losing charging ability. 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.

Mya Le Thai told VOA she is enjoying the publicity about her discovery. She said she never expected her research to get media coverage. “It’s kind of cool,” she said. “I’m really glad people are showing interest in my work and not just in the work itself, but also in technology and energy.”

【1】Why did Mya Le Thai make up her mind to settle the problem about her wireless devices degrade?

A.Because her wireless devices couldn’t work at all.

B.Because she discovered a new kind of battery.

C.Because the batteries for her wireless devices couldn’t last long.

D.Because she wanted to show her new research.

【2】What prevents lithium-ion batteries from lasting forever?

A.PMMA.B.Nanowires.

C.Electricity.D.Power.

【3】How can the scientist make the nanowires last longer?

A.By using a gel to cover them.B.By cutting them shorter.

C.By making them longer.D.By using a gel to make wire.

【4】What kind of person is Mya Le Thai?

A.Generous and wise.B.Honest and wise.

C.Honest and hard-working.D.Modest and creative.

Answer 1

【答案】

【1】C

【2】B

【3】A

【4】D

【解析】

這是一篇說明文。主要介紹了加利福尼亞大學(xué)的科學(xué)家Mya Le Thai因為自己的手機電池問題而促使她發(fā)明了一項可以讓手機電池持續(xù)時間長的程序，并受到很多人的關(guān)注。

【1】推理判斷題。根據(jù)第一段中Thai said she had been frustrated that the batteries for her wireless devices degrade. Over time, they fail to charge fully. She decided to do something about that problem.可知Thai說，她的無線設(shè)備的電池會退化，這讓她很沮喪。久而久之，它們就不能充份充電了。她決定做點什么。由此可知，促使Mya Le Thai 下決心解決她的無線設(shè)備退化的問題的原因是她的無線設(shè)備的電池不持久。故選C。

【2】細節(jié)理解題。根據(jù)第二段中One of the reasons lithium-ion batteries degrade is their use of nanowires(納米線) to carry electricity.(鋰離子電池退化的原因之一是使用納米線來輸送電力)及最后兩句But Thai said their thinness also makes them weak. “Nanowires break over time,” she said. “That’s why they lose capacity.”(但Thai說，他們的細薄也使他們脆弱�！凹{米線會隨著時間斷裂，”她說�！斑@就是他們喪失能力的原因”)由此可知，導(dǎo)致鋰電池不能持久的原因是因為納米線脆弱，容易斷。故選B。

【3】細節(jié)理解題。根據(jù)第三段中But, Thai had a theory: The nanowires might last longer if covered with a gel.可知但是，Thai有一個理論：如果用凝膠覆蓋納米線，它的壽命可能會更長。由此可知，通過往納米線上涂膠的方式可以延長電池使用壽命。故選A。

【4】推理判斷題。根據(jù)文章內(nèi)容由于自己的手機電池退化，使Mya Le Thai產(chǎn)生了發(fā)明一種新電池的想法，后來通過實驗，她發(fā)現(xiàn)在納米線上涂上一層膠，可以延長電池的壽命。但是，她并沒有就此止步，而是繼續(xù)研究去尋找其他類型的膠，已達到更理想的效果。由此可以推出Mya Le Thai具有創(chuàng)造精神。當(dāng)她的發(fā)現(xiàn)受到人們的歡迎的時候，她不希望媒體采訪她。由此可以推出她是謙虛的。故選D。