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 photo 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 or 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.
1.What’s the problem with this year’s hoverboards?
A. They don’t have wheels. B. They catch fire in the sun.
C. They are difficult to handle. D. They can’t move in any direction.
2.We can infer from the passage that .
A. the number of hoverboard-related injuries is declining.
B. hoverboards are still enjoying equal popularity as before.
C. hoverboards are still sold on Amazon in the United States.
D. passengers are forbidden to get on planes with hoverboards.
3.The underlined word “defective” in the sixth paragraph probably means .
A. faulty B. spare
C. dead D. dry
4.We can probably read this passage in a .
A. newspaper B. textbook
C. science fiction D. movie review
科目:高中英语 来源:江苏省高中英语选修六牛津译林版练习题:Unit 4 Helping people around the world 题型:任务型阅读
A study published Monday found that people who sleep less tend to be fat,and experts said it’s time to find out if more sleep will fight fatness.
“We’ve put so much emphasis on diet and exercise that we’ve failed to recognize the value of good sleep,”said Fred Turek,a physician at Northwestern University.
Monday’s study from Eastern Virgnia Medical School in Norfolk covered 1,000 people and found that total sleep time decreased as body mass index-a measure of weight based on height increased.
“Men slept an average of 27 minutes less than women and overweight and fat patients slept less than patients with normal weights,”it said.In general the fatter subjects slept about 1.8 hours a week less than those with normal weights.
“Americans experience insufficient sleep and fat bodies.Clinicians are aware of the burden of fatness on patients,”the study said.
“Our findings suggest that major extensions of sleep time may not be necessary,as an extra 20 minutes of sleep per night seems to be associated with a lower body mass index,”it added.
“We caution that this study does not set up a cause?and?effect relationship between restricted sleep and fatness,but investigations indicating success in weight loss via extensions of sleep would help greatly to set up such a relationship.”
The study was published in the Archives of Internal Medicine along with an editorial by Turek and Northwestern colleague Joseph Bass commenting on it and related research.
Inan interview,Turek said some studies have shown the lack of sleep causes declines in an appetiteholding back protein hormone,and increases in another hormone that cause a longing for food.“In addition neuropathies(神经疗法)in the brain governing sleep and fatness appear to overlap(部分重叠),”he said.
“Fatness has been rising dramatically in developed countries and reached epidemic(流行病)levels in the United States,”it added,“leading to a variety of health problems.”
A new study having been 1. | |||
2. | in the past | diet and 3. | |
this time | sleep | ||
A study from Eastern Virginia Medical School | People | 1,000 were 4. | |
difference | Men slept 27ms less than women on 5. | ||
Americans' problem | 6. sleep and fat bodies | ||
conclusion | Weight loss set up 7. between sleep & fatness. | ||
Reason | Less sleep causes protein hormone to 8. | ||
concern | developing countries | rising with 9.speed | |
in the USA | quite 10. | ||
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科目:高中英语 来源:内蒙古乌兰察布分校2016-2017学年高一下学期第二次调考英语试卷 题型:阅读理解
To whom it may concern,
My husband Jim and I got married in 1965. For the first ten years of our marriage, I was very happy to stay home and raise our three children. Then about four years ago, our youngest child went to school, and I thought I might go back to work.
Jim was very supportive and helped me to make my decision. He started to do all the things I used to do around the house, and said he thought I could be a great success in business.
After several weeks of job hunting, I found my present job, which is working for a small public relation firm. At first, my husband was proud of me and would tell his friends, “My clever little wife can run that company she’s working for.”
But, as his joking words were becoming reality, Jim stopped talking to me about my job. I have received several promotions and pay increases, and I am now making more money than he is. I can buy my own clothes and a new car. Because of our combined incomes, Jim can do things that we had always dreamed of doing, but we don’t do these things because he is unhappy.
We fought about little things, and Jim is very critical of me in front of our friends. For the first time in our marriage, I think there is a possibility that our marriage may come to an end.
I love Jim very much, and I don’t want him to feel inferior(较差的), but I also love my job. I think I can be a good wife and a working woman, but I don’t know how. Can you give me some advice? Will I have to choose one or the other or can I keep both my husband and my new career?
Please help.
Yours,
Mary
1.When was the letter most probably written?
A. In 1975. B. Around 1980.
C. Four years ago. D. In 1965.
2.What shows her husband was supportive?
A. He helped look after babies.
B. He told her his experience.
C. He worked much harder.
D. He encouraged her a lot.
3.How did her husband feel when she first found her job?
A. Nervous. B. Disappointed.
C. Proud. D. Curious.
4.Jim stopped talking about her job when ___________.
A. Jim failed to do what he liked
B. she made more money than he
C. she received her boss’ praise
D. Jim had to do housework
5.What happened as her income increased?
A. She found a gap(分歧) between Jim and her.
B. She did what she had dreamed of.
C. She felt proud of herself.
D. She bought a house.
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科目:高中英语 来源:福建省泉州市2016-2017学年高一上学期期末考试英语试卷 题型:七选五
Food safety is a problem in all places around the world and people in different areas of the world prepare foods in different ways. The WHO released five simple rules for preparing food in a safe way. 1.
Key 1: Keep clean.
The first key tells about the importance of washing. People should wash their hands often—before touching food, while they are preparing food, and any time after they go to the toilet. People should wash all surfaces and equipment used for preparing food. 2.
Key 2: 3.
People should separate raw, or uncooked food from foods that are already cooked and foods that will not be cooked. People should store raw meat, chicken, and fish in containers, or in separate areas. Raw foods should not touch prepared foods.
Key 3: Cook completely.
People should cook eggs and meat, like birds, seafood, and animals, especially carefully. These foods may carry more micro-organisms than other foods. Food like soup must be boiled for at least a minute to make it be cooked completely. It is also important that people re-heat cooked food completely.
Key 4: Keep food at safe temperatures.
When people are finished with eating, they should keep the left food in a refrigerator below 5℃ and shouldn’t store it for too long. At room temperature, about 20℃, the amount of micro-organisms can increase very quickly. 4. They cannot grow as quickly in a very hot or very cold environment.
Key 5: Use safe water and raw materials.
5. Damaged or old food may develop harmful chemicals as it gets older.
A.Eat cooked food immediately, while it is still hot.
B.They call these rules the “Five Keys to Safer Food.”
C.Separate raw and cooked.
D.People should use safe water and choose fresh foods.
E.Keeping everything clean helps people to avoid micro-organisms.
F.People should also protect cooking areas and food from insects and animals.
G.But temperatures above 60℃ or below 5℃ control the growth of micro-organisms.
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科目:高中英语 来源:黑龙江省肇东市2016-2017学年高二下学期期中考试英语试卷 题型:完成句子
1.---Jack, this is the third time that you have been late this week!
---- Sorry, sir, but I was held _______ for 15 minutes on the way here in the traffic jam.
2.This kind of desk can be adjusted ___________the height you need..
3.I will not put up___________ your bad behavior any longer.
4.The police are appealing_________ the public for any information about the missing boy.
5.She has gone ________ a lot of things,so she knows exactly how to deal with such a person.
6.Eating too much fat can contribute________ heart disease and cause high blood pressure.
7.These books are intended ________ young children under12.
8.They were lost at sea,________ the mercy of wind and weather.
9.The hotel is not responsible ________ any loss or damage to guests’ personal property.
10.He took his little daughter to Disneyland in order to cheer her_________.
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科目:高中英语 来源:江苏省牛津译林版英语Module 5 Unit 3 test4 题型:阅读理解
Many of us remember being in awe(敬畏) when we saw cloned dinosaurs running wild in the film Jurassic Park. And the idea of using technology to revive(恢复) extinct species has long fascinated not only writers and directors, but scientists as well.
According to The Telegraph, woolly mammoths(长毛猛犸象), which featured in the popular Ice Age animated movie series, “may walk the earth once more” now that scientists have taken another step toward realizing a long-held dream—recreating their DNA.
Mammoths became extinct around 10,000 years ago. However, since the discovery of near-perfect preserved remains in Arctic permafrost(北极冻土带) in May 2013, a variety of research studies have been carried out since.
Geneticists from Harvard University analyzed DNA from the remains, looking for genes which separated mammoths from elephants, such as hairiness and ear size. They then used the results to reproduce exact copies of 14 mammoth genes. “It is the first time that mammoth genes have been alive—although so far it has only been done in the lab,” George Church, lead researcher of the project, told the Sunday Times.
Church then used a new technique which allows scientists to edit DNA carefully, replacing sections of elephant DNA with the mammoth genes. So “we now have functioning elephant cells with mammoth DNA in them,” he said.
However, Church ruled out the possibility of bringing the mammoths back to life via cloning from frozen remains. He said he “preferred to focus on rebuilding the full mammoth genome(基因组) by analyzing DNA from preserved remains and putting it into the cells of its closest living relative – the Asian elephant,” reported The Telegraph.
Church argued that the return of the woolly mammoth—or rather, the return of something very similar—could help bring back fragile(脆弱的) ecosystems. However, some scientists believe that bringing back the mammoth would be unethical.
Professor Alex Greenwood, an expert on ancient DNA, said: “We may face the extinction of African and Asian elephants. Why bring back another elephant from extinction when we cannot even keep the ones that are not extinct around?” he told the Sunday Times. “What is the message? We can be as irresponsible with the environment as we want. Then we’ll just clone things back?”
“Money would be better spent focusing on conserving what we do have than spending it on an animal that has been extinct for thousands of years,” he said.
1.We can learn from the article that ______.
A. cloned mammoths followed cloned dinosaurs to get revived
B. the technology to revive mammoth genes is already mature
C. George Church and his colleagues tried to reproduce mammoth DNA
D. Church and his team managed to list all the genes that separate mammoths from elephants
2.According to Church, what is the significance of his study?
A. It could help prevent the extinction of the Asian elephant.
B. It could help people better tell elephant DNA from mammoth genes.
C. It could help bring back some extinct species and save fragile ecosystems.
D. It could help bring mammoths back to life via cloning from frozen remains.
3.The underlined word “unethical” in Paragraph 7 is closest in meaning to ______.
A. unacceptable B. misled
C. impractical D. illegal
4.According to the article, Professor Alex Greenwood believes that _______.
A. there is no need to worry about the extinction of African and Asian elephants at present
B. it’s necessary to bring back species that are beneficial to human beings from extinction
C. the return of the woolly mammoth would help to balance ecosystems
D. it’s more important to protect present species than to bring back extinct ones
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科目:高中英语 来源:江苏省牛津译林版英语Module 5 Unit 3 test4 题型:单项填空
(2014·宁波抽样检测)Marty's disability is“one in a million”.________,there are not many people in the world like him.
A. In other words B. All in all
C. For one thing D. On the other hand
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科目:高中英语 来源:四川省成都市2016-2017学年高一下学期期中考试英语试卷 题型:阅读理解
About 1966 or so, a NASA (美国航空航天局) team doing work for the Apollo moon mission (任务) took the astronauts near Tuba City. There the landscape of the Navajo Reservation (保留地) looks very much like the lunar surface. Among all the trucks and large cars were two large figures that were dressed in full lunar space suits.
Nearby a Navajo shepherd (牧羊人) and his son were watching the strange creatures walk about, occasionally being watched over by other NASA workers. The two Navajo people were noticed and approached by the NASA people. Since the shepherd and his son did not know English, they asked the NASA people who the strange creatures were. The NASA people told them that they were just men that were getting ready to go to the moon. The shepherd became very excited and asked if he could send a message to the moon with the astronauts.
The NASA officials thought this was a great idea so they provided a tape recorder. After the man gave them his message, they asked his son to translate. His son would not.
Later, they tried a few more people on the reservation to translate and every person they asked would chuckle (偷偷地笑) and then refuse to translate. Finally, with cash in hand someone translated the message,
“Watch out for these guys, they have come to take your land!”
1.The appearance of the Navajo Reservation is very similar to that of ______.
A. the Tuba City B. the moon
C. the NASA research center D. the Apollo moon mission
2.When the older Navajo heard that the men in front of him were going to the moon, he ______.
A. felt frightened and ran away quickly
B. chatted excitedly with the NASA workers
C. got on the modern trucks and large vehicles for fun
D. tried to say something to the moon creatures
3.The son did not translate the words his father said because ______.
A. he had trouble in understanding his father
B. the words his father used were too difficult to be translated
C. his father was sending a warning against the NASA people
D. he believed that the NASA workers could understand their language
4.According to this passage, we can know that the shepherd was ______.
A. patient and brave B. foolish and impolite
C. humorous and intelligent D. knowledgeable and talkative
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科目:高中英语 来源:2018《模块综合检测》高考英语(江苏专用译林版)精练优化卷(一)(Book 1) 题型:阅读理解
It is like a scene from a horror film:a spider web is several meters wide,which is home to thousands of spiders.And that was what Jason G.Goldman,an animal behavior researcher,found along a muddy path in the Peruvian Amazon jungle—the web arched from tree to tree,a structure containing too many spiders to count.They appeared to function as a society,just like ants or bees.
Anelosimus eximius,the species Goldman met in the rainforest,is not the only kind of social spiders in the world,but it does construct the biggest webs.Some can reach more than 7.6m long and 1.5m wide.A web of that size could contain as many as 50,000 individual spiders.
Anelosimus eximius was first discovered more than a century ago by a French scientist named Eugene Simon.More social spiders have been discovered since.One was found as recently as 2006.
An Anelosimus eximius colony(群体) contains adult males and females as well as youngsters,but the majority of spiders on the web are females. Males account for only between 5% and 22% of any colony’s population.Social spiders work together to build,maintain and clean their webs.They work together to catch prey(猎物),and dine together when they trap a large feast.The females work together to care for the young in the colony.They feed their youngsters by vomiting(吐出) up food for them,just like mother birds.
Why did these spiders become social?Researchers have discovered three ecological(生态的) elements that often lead to cooperative(合作的) living among spiders.
Social spiders tend to feed on bigger prey,for one thing.Spiders living in places where it is difficult to hunt large or more profitable prey alone may eventually figure out that it is in their interest to work together.
1.What can we know about Anelosimus eximius from the text?
A. Its latest branch was found in 2006.
B. It was discovered by Jason G.Goldman.
C. It has been in existence for less than a century.
D. It builds bigger webs than other kinds of spiders.
2.Which of the following correctly shows the parts of an Anelosimus eximius colony?
A. B.
C. D.
3.What’s the main feature of social spiders?
A. They live on big prey.
B. They care for the young.
C. They live and work together.
D. They mainly exist in the rainforest.
4.The following paragraph would discuss .
A. new threats to spiders’ colonies
B. new research on spiders’ colonies
C. more reasons for spiders’ cooperative living
D. more species of social spiders in the world
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