四川省泸州市泸县第一中学2020届高三英语二诊模拟试题

lithium—ion batteries degrade is their use of nanowires to carry electricity．Nanowires are extremely thin．A human hair is thousands of times thicker，for example．Nanowires are extremely efficient carriers of electricity，which makes them useful in batteries．

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 hopes to continue her research to understand why this gel works so well and to see if any other gel could create better results and 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．”

32．Why did Mya Le Thai work on lithium-ion batteries? A．She disliked the batteries for her laptop． B．Her team were assigned to invent a new battery．

C．Many people thought batteries were too expensive． D．The batteries would soon lose the function to charge fully． 33．What can we infer about nanowires?

A．They last only 7,000 charging cycles． B．They are too weak to carry electricity．

C．They are not suitable to use in batteries． D．Their thinness is a cause of batteries degrade．

34．What might be Thai and her team’s breakthrough? A．Coating nanowires in gel． C．New materials for batteries． batteries．

35．What may be the best title for the passage?

A．The options of batteries for wireless devices B．A woman invents a life—long battery.

C．Mya Le Thai discovered Nanowires batteries degrading

第二节 (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。

The modern competitive sport of weightlifting originated in 19th-century

D．The reasons for

B．A new kind of battery． D．A new way of charging

Europe and was included in the first modern Olympic Games in 1896. 36 At that time, simple competitions were held to see who could lift the heaviest weight.

The first worldwide weightlifting championships were held in London in 1891. At that time, there were no female competitors. Today, the World Weightlifting Championships, organized by the International Weightlifting Federation (IWF), are held every year. 37 .

Weightlifting as an Olympic event got off to an unsmooth start. It was not held as a separate event in the first games held in 1896, but as a field event. 38 The sport returned to the Olympics again in 1904, this time as part of the athletics program. Not until 1920 did weightlifting make its real Olympic comeback. The 1920 Olympic Games, held in Antwerp, Belgium, marked weightlifting’s debut（首次露面）as a separate event. 39 Previously, weightlifters in the Olympics were all required to compete against each other, regardless of their size. One-hand lifting was dropped from the sport in 1928. Various weightlifting exercises were added and later removed over many years until 1972. 40 The 2000 Olympic Games in Sydney saw the introduction of the women’s competition, although the IWF has held the World Weightlifting Championships for women since 1987.

A. The 1940 and 1944 Games were canceled.

B. It is a sport in which barbells are lifted competitively. C. The 1900 Games had no weightlifting presence at all.

D. The championships include 15 separate weight types for both men and women.

E. The 1972 Olympic Games finally presented the weightlifting program in its present form.

F. The sport, however, dates back to ancient civilizations including China, Egypt and Greece.

G. The Antwerp Games also introduced one-hand lifting and weight divisions to the new event.

第三部分 英语知识运用 （共两节，满分45）

第一节完形填空（共20小题；每小题1.5分，满分30分）

Sherry is in her internship now. Last month, she bought a lipstick which she really liked.

This lipstick 41 her more than 50 dollars. It's not 42 , but it made her happy, because it was the one that she had been 43 for a long time.

Every morning, when she 44 her makeup, everything seems brand new due to this lipstick. It feels like that the whole day is full of 45 .

Sherry has long been accustomed to 46 herself through shopping.