题目内容

【题目】Hoverboards are quite convient for people to carry or ride on the busy street, especially in college camps, more and more students choose to ride a hoverboard to class.

So hoverboards(电动滑板)were among the most popular Christmas gifts of 2015. They may have also been most dangerous gifts of 2015.

A true hoverboard looks like a skateboard without wheels. To “hover” means to float in the air without moving much in any direction. The popularity of hoverboards began in the 1980s, with the “Back to the Future” movies. Characters in the second and third films used hoverboards as transportation.

This year’s popular hoverboards, however, do not actually hover. They have wheels. And? as it turns out, they are not easy to use.

Adults and children around the world suffered hoverboard-related injuries over the weekend. Many posted pictures of the damage on social media. Twitter user David Douglas posted a pho to of both him and a young girl with the broken arms they suffered on Christmas Day. And another user Erin Rafferty uploaded a video of her mother falling off a hoverboard, with the caption, “Who let mom on the hoverboard?”

Falling is not the only risk with some hoverboards. They are also a fire risk. At one store in Texas, an employee tried to fix a hoverboard a customer brought in. The hoverboard then caught fire.

Studies suggest that some hoverboard brands have defective batteries o r plugs.

Many major airlines worldwide have banned hoverboards because of the fire risk. But some passengers did not hear the news. Australian actor Russell Crowesaid on Monday about his disappointment that Virgin Australia Airlines did not permit his children to take their hoverboards on the plane.

Major retailers (零售商)are also taking steps to improve the safety of the hoverboards they sell. Amazon in the United States now only sells hoverboards from brands that have submitted safety standard documents. The UK’s Amazon no longer sells hoverboards. It has also advised customers who bought unsafe brands of hoverboards to throw them away.

1What’s the problem with this year’s hoverboards?

A. They don’t have wheels. B. They are difficult to handle.

C. They catch fire in the sun. D. They can’t move in any direction.

2We can infer from the passage that.

A. hoverboards are still enjoying equal popularity as before.

B. hoverboards are still sold on Amazon in the United States.

C. passengers are forbidden to get on planes with hoverboards.

D. the number of hoverboard-related injuries is declining.

3The underlined word “defective” in the sixth paragraph probably means _____.

A. dead B. faulty

C. dry D. spare

4We can probably read this passage in a.

A. science fiction B. magazine

C. newspaper D. moviereview

【答案】

1C

2D

3B

4C

【解析】文章讲述的是电动滑板虽然快捷方便,但存在安全隐患容易摔伤或着火。我们应该采取有效措施减少伤害。

1C

推理判断题。根据第六段和第七段Falling is not the only risk with some hoverboards. They are also a fire risk. At one store in Texas, an employee tried to fix a hoverboard a customer brought in. The hoverboard then caught fire. Studies suggest that some hoverboard brands have defective batteries or plugs.的描述可知电动滑板由于电池或插头有问题能着火,故选C.

2D

推理判断题根据最后一段Major retailers (零售商)are also taking steps to improve the safety of the hoverboards they sell. Amazon in the United States now only sells hoverboards from brands that have submitted safety standard documents.It has also advised customers who bought unsafe brands of hoverboards to throw them away.可知由于采取了一些措施,和电动滑板有关的受伤在减少,故选D.

3B

猜测词义题Studies suggest that some hoverboard brands have defective batteries or plugs.指研究表明一些电动滑板品牌电池或插头有缺点,defective“有缺点的,与faulty同义,故选B.

4C

推理判断题。文章讲述的是电动滑板虽然快捷方便,但存在安全隐患容易摔伤或着火。此类文章不是科幻小说和电影评论,不会出现在杂志上,可能出现在报纸上。故选C.

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【题目】Most people know that Marie Curie was the first woman to win the Nobel Prize, and the first person to win it twice. However, few people know that she was also the mother of a Nobel Prize winner.

Born in September, 1897, Irene Curie was the first of the Curies’ two daughters. Along with nine other children whose parents were also famous scholars, Irene studied in their own school, and her mother was one of the teachers. She finished her high school education at the College of Sévigné in Paris.

Irene entered the University of Paris in 1914 to prepare for a degree in mathematics and physics. When World War I began, Irene went to help her mother, who was using X-ray facilities(设备) to help save the lives of wounded soldiers. Irene continued the work by developing X-ray facilities in military hospitals in France and Belgrum. Her services were recognised in the form of a Military’s Medal by the French government.

In 1918, Irene became her mother’s assistant at the Curie Institute. In December 1924, Frederic Joliot joined the Institute, and Irene taught him the techniques required for his work. They soon fell in love and were married in 1926. Their daughter Helene was born in 1927 and their son Pierre five years later.

Like her mother, Irene combined family and career. Like her mother, Irene was awarded a Nobel Prize, along with her husband, in 1935. Unfortunately, also like her mother, she developed leukemia because of her work with radioactivity(辐射能). Irene Joliot-Curie died from leukemia on March 17, 1956.

1Why was Irene Curie awarded a Military Medal?

A. Because she received a degree in mathematics.

B. Because she contributed to saving the wounded.

C. Because she won the Nobel Prize with Frederic.

D. Because she worked as a helper to her mother.

2Where did Irene Curie meet her husband Frederio joliot?

A. At the Curie Institute. B. At the Cniversity of Paris.

C. At a military hospital. D. At the College of Sevigne.

3When was the second child of Irene Curie and Frederic Joliot born?

A. In 1897. B. In 1927.

C. In 1932 D. In 1926.

4In which of the following aspects was Irene Cuire different from her mother?

A. Irene worked with radioactivity. B. Irene combined family and career.

C. Irene won the Nobel Prize once D. Irene died from leukemia.

【题目】Batteries can power anything from small sensors to large systems. While scientists are finding ways to make them smaller but even more powerful, problems can arise when these batteries are much larger and heavier than the devices themselves. University of Missouri(MU) researchers are developing a nuclear energy source that is smaller, lighter and more efficient.

“To provide enough power, we need certain methods with high energy density(密度)”, said Jae Kwon, assistant professor of electrical and computer engineering at MU. “The radioisotope(放射性同位素) battery can provide power density that is much higher than chemical batteries.”

Kwon and his research team have been working on building a small nuclear battery, presently the size and thickness of a penny, intended to power various micro / nanoelectromechanical systems (M/NEMS). Although nuclear batteries can cause concerns, Kwon said they are safe.

“People hear the word ‘nuclear’ and think of something very dangerous,” he said, “However, nuclear power sources have already been safely powering a variety of devices, such as pace-makers, space satellites and underwater systems.”

His new idea is not only in the battery’s size, but also in its semiconductor(半导体). Kwon’s battery uses a liquid semiconductor rather than a solid semiconductor.

“The key part of using a radioactive battery is that when you harvest the energy, part of the radiation energy can damage the lattice structure of the solid semiconductor,” Kwon said, “By using a liquid semiconductor, we believe we can minimize that problem.”

Together with J. David Robertson, chemistry professor and associate director of the MU Research Reactor, Kwon is working to build and test the battery. In the future, they hope to increase the battery’s power, shrink its size and try with various other materials. Kwon said that battery could be thinner than the thickness of human hair.

1Which of the following is true of Jae Kwon?

A. He teaches chemistry at MU.

B. He is working on a nuclear energy source.

C. He developed a chemical battery.

D. He made a breakthrough in computer engineering.

2Jae Kwon gave examples in Paragraph 4_________.

A. to introduce nuclear batteries can be safely used

B. to show chemical batteries are widely applied

C. to introduce various energy sources

D. to describe a nuclear-powered system

3Liquid semiconductor is used to _________.

A. get rid of the radioactive waste

B. test the power of nuclear batteries.

C. reduce the damage to lattice structure.

D. decrease the size of nuclear batteries

【题目】英国姐妹学校的老师Dr.Smith将要来你们学校开展教学活动。来华前,他给你们年级的学生写了一封公开信,调查需求情况。

Dear students,

I'm so excited about my trip to China next month.I can't wait to see your school and give my lessons there.Just a few things I'd like to know.What do you hope to get out of these lessons?What topics do you find most interesting? And what kind of teachers do you like?

I am looking forward to your reply.

Sincerely yours,

Paul Smith

假定你是李华,请根据来信内容代表同学们写一封回信,内容包括:

1.欢迎Dr.Smith的来临;

2.回复信中提出的问题;

3.表达对他到来的期盼。

注意:

1.词数100-120字左右;

2.可以适当增加细节,以使行文连贯。

Dear Dr.Smith,

My classmates and I became very excited hearing you would give us lessons.

____________________________________________________________________________________________

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Yours sincerely,

Li Hua

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