阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。
There is good news- for those who enjoy 1. (run) - around in rain and don't want to get their clothes dirtied or those who play soccer but don't want their shirts to get soiled or wet with sweat. British scientists have created a fabric (织物)that never gets dirty or wet! The cloth 2. (treat) with a special non-sticky chemical that resists oil and water. This ensures that the clothes made 3. it remain clean. But the scientists are not yet ready to make public the 4. (detail) information of this "miracle" chemical.
A well-known French company recently launched 5. new range of jackets that have Teflon in them. Teflon is the plastic coating on non-stick cooking pans,6. has a special characteristic: No reaction to anything. As a result, dirt and water slip away from the Teflon fabric, as 7.(easy) as oil slips out of a Teflon-coated pan.
American scientists have gone a step 8.(far). They have added insecticide (杀虫剂) to the fabric that kills mosquitoes on contact. This new anti-mosquito fabric 9. (find) immediate buyers shortly after its invention. According to reports, several mosquito net producers are planning 10.. (compete) with each other in the bid (投标)to "net" the company for the use of this new technology.
It's sad to know that each year many teenagers experience the death of someone they love. This is likely to have an __________ on their life. Although bereavement(丧失) is a difficult and __________ topic, I'm going to talk about some of the things that __________ helped me to cope better after losing my dad in 2012.
The most important __________ is not to "bottle things up". At first, I didn’t tell anyone how I really felt when I should have spoken about it. No one should be __________ to feel upset after losing someone they love, as it’s an __________ time. It is important to talk about how you feel to people you __________ so they can support you. I “opened up” to few people, but it was nice to know that I had people there who I could __________ if I had a (n) __________ day. I spoke to my friends and my teachers, who would offer __________.
Another thing that I found to be __________ after losing my dad was to make a __________ box. This is a box where I put stuff that reminded me of my dad, and the memories I __________ with him. I still have the_______now, and it makes me __________.
Finally, it’s important to take time to grieve(悲痛) properly. I decided to focus on my studies and the things I __________ doing. I get __________ from time to time but I’ve learned that it’s okay to __________.
Everyone will have their own ways of ___________ after losing someone they love. This outlines what I personally found helpful. Everyone should remember that they are not __________.
1.A.independence B.impact C.agreement D.impression
2.A.impressive B.objective C.positive D.sensitive
3.A.personally B.simply C.hopefully D.possibly
4.A.thing B.phrase C.fact D.truth
5.A.pleased B.heartbroken C.desired D.ashamed
6.A.unimportant B.unpleasant C.untouched D.unsatisfied
7.A.meet B.know C.trust D.remember
8.A.look for B.turn to C.speak to D.respond to
9.A.common B.particular C.easy D.bad
10.A.accommodation B.money C.food D.help
11.A.helpful B.disappointed C.painful D.grateful
12.A.chocolate B.experience C.memory D.personal
13.A.provided B.shared C.played D.talked.
14.A.box B.stuff C.memory D.sadness
15.A.stop B.wonder C.smile D.differ
16.A.forgot B.kept C.enjoyed D.considered
17.A.upset B.confused C.bored D.influenced
18.A.laugh B.cry C.question D.calm
19.A.studying B.living C.handling D.passing
20.A.allergic B.alike C.usual D.alone
Tips for Developing Your Artistic Talent
Everyone has an artistic talent. You might not even know it. 1.. However, in fact, there are a lot of different ways to express your artistic side. You don't necessarily have to be a professional(专业人员). You can enjoy art just for its own value. Check out a few tips for developing artistic skills.
1. Art takes a variety of forms
Most people think that art can only be found in museums and is only for the elite(精英). You can look around you.2.. They may be found in nature, and even in usual advertisements and posters. Just start to look at such sides as line, color, composition and style.
2. Try things out
If you want to develop your artistic talent, start trying things out.3.
3. Appreciate
4.. Almost anything can be used for inspiration. Visit museums and galleries, or look at art books. When you look around you, you develop your artistic appreciation and use it to work on developing your own skills.
4.5.
Don't expect to create a masterpiece(杰作)with your first try. There must be mistakes. Many artists spent years studying and perfecting their skill. You might not want to reach their level, but don't feel shy about your work. Even if it's not perfect, it will be. Try out，learn from your mistakes, and improve your skills.
A. Take art classes
B. Don't be afraid to make mistakes
C. You'll find art and beauty are everywhere
D. You might have always thought that you don't have any skills in the arts
E. Another way to develop your artistic talent is to learn how to use your eyes
F. There are many things you can try from painting, costume, dance and singing
G. Discuss the art with other art lovers to see what they think and then form your own opinion
Modern lifestyles are generally quite different from those of our hunter-gatherer ancestors, a fact that some claim as the cause of the current rise in global obesity, but new results published July 25 in the open access journal PLOS ONE find that there is no difference between the energy expenditure(耗费) of modern hunter-gatherers and Westerners, casting doubt on this theory.
The research team behind the study, led by Herman Pontzer of Hunter College in New York City, along with David Raichlen of the University of Arizona and Brian M. Wood of Stanford measured daily energy expenditure among the Hadza, a population of traditional hunter-gatherers living in the open Savannah of northern Tanzania. Despite spending their days hiking long distances to seek for wild plants and game, the Hadza burned no more calories each day than adults in the U.S. and Europe. The team ran several analyses accounting for the effects of body weight, body fat percentage, age, and gender. In all analyses, daily energy expenditure among the Hadza hunter-gatherers was indistinguishable(难以区分的) from that of Westerners. The study was the first to measure energy expenditure in hunter-gatherers directly; previous studies had relied entirely on estimates.
These findings overturn the long-held assumption that our hunter-gatherer ancestors expended more energy than modern populations, and challenge the view that obesity in Western populations results from decreased energy expenditure. Instead, the similarity in daily energy expenditure across a broad range of lifestyles suggests that habitual metabolic(新陈代谢的) rates are relatively constant among human populations. This in turn supports the view that the current rise in obesity is due to increased food consumption, not decreased energy expenditure. It means we have more to learn about human physiology(生理学) and health, particularly in non-Western settings.
"These results highlight the complexity of energy expenditure. It's not simply a function of physical activity," says Pontzer.” Our metabolic rates may be more a reflection of our shared evolutionary past than our diverse modern lifestyles."
1.According to the new research, hunter-gatherers consume _________.
A. the same energy as Westerners B. more energy than Westerners
C. less energy than Westerners D. the same food as Westerners
2.How did the research team do the new research?
A. By comparing hiking distances. B. By identifying wild plants and game.
C. By estimating daily energy expenditure. D. By measuring daily energy expenditure.
3.People have long assumed that _________.
A. the rise in obesity is due to increased food consumption
B. decreased energy expenditure makes Westerners fat
C. daily energy expenditure stays the same in history
D. humans’ habitual metabolic rates are unchanged
4.Which of the following can reflect our shared evolutionary past?
A. Our physiology activity. B. Our energy expenditure.
C. Our metabolic rates. D. Our modern lifestyle.
Antarctica(南极洲)’s melting ice, which has caused global sea levels to rise by at least 13.8 millimeters over the past 40 years, was thought to primarily come from the unstable West Antarctic Ice Sheet(WAIS). Now, scientists have found that the East Antarctic Ice Sheet (EAIS)—considered largely unaffected by climate change—may also be melting at an unexpectedly rapid speed.
The WAIS, whose base is below sea level, has long been considered the most likely to break down. Besides gravity, a deep current of warm water slips beneath the sheet, melting it from below until it becomes a floating shelf at risk of breaking away. In contrast, extreme cold and a base mostly above sea level are thought to keep the EAIS relatively safe from warm waters.
But as greenhouse gases warm much of the planet, driving stronger polar winds, some scientists think warm water carried by a circular current will start to invade East Antarctica’s once unassailable ice. A cooperation of more than 60 scientists last year, published in Nature, estimated that the EAIS actually added about 5 billion tons of ice each year from 1992 to 2017.
Eric Rignot of the University of California, Irvine, and colleagues combined 40 years of satellite imagery and climate modeling and found that overall Antarctica now sends six times more ice into the sea each year than it did in 1979, with the majority coming from West Antarctica. But East Antarctica was responsible for more than 30% of Antarctica’s contribution to the 13.8-millimeter sea level rise over the past 40 years. “The more we look at this system the more we realize this is fragile,” Rignot says. “Once these glaciers become unstable there is no red button to press to stop it.”
Rignot hopes the study brings greater attention to a part of Antarctica that has traditionally been understudied. Helen Fricker, a glaciologist (冰川学家) in California, agrees. “We need to monitor the entire Antarctica and we just can’t do that without international cooperation.”
1.What is the new finding of scientists?
A.The east Antarctica is losing ice at an increasing rate.
B.The west Antarctica is melting six times faster than in 1979.
C.5 billion tons of ice is added to Antarctica each year.
D.The sea level has risen by 13.8 mm over the past 40 years.
2.Which factor leads to the EAIS’s melting fast?
A.A base mostly over sea level. B.The force of gravity.
C.The invasion of a warm current. D.Extremely low temperature.
3.Which of the following best explains “unassailable” underlined in Para. 3 ?
A.Fragile. B.Unattackable.
C.Mild. D.Unstable.
4.Which way does Helen Fricker specially advocate?
A.Satellite imagery. B.Global monitoring.
C.Worldwide climate modeling. D.Worldwide combined efforts.
Recently, many e-commerce platforms, including Didi Taxi, Ctrip, Fliggy, JD ad Taobao, have been uncovered that they are cheating their frequent customers. Their ways are pretty clever. When there are new users or conservative old users, they will give a quite appealing price to attract them into registering and buying goods. However, their big data is not that friendly to the stable users and frequent visitors. The system always offers them higher price for the same products or service. How does this happen? According to the data analysis, the system knows clearly that although they feel the price is high, they will finally pay the bill. By collecting and analyzing users’ profiles, buying habits and other information, big data recommends the same products to different users with different prices.
Companies also try other ways to make money, making online consumption far more worrying. For example, video websites always offer 120 seconds’ advertisements, which drives people crazy. And even if you pay for the membership to get rid of the ads, you have to “enjoy” 15-second “private” ads. By broadcasting them, companies make huge profits — second to the membership fees. Also, owning 100Mbps network, you still put up with the slow speed when you are downloading a song. You have no choice but to become a VIP when you seek high quality services. Users seem to be lambs(羊羔) among wolves. Even though they say, “Since you have money, I’ll charge you more”, we can’t do anything about it.
It pains us that we haven’t figured out a way to deal with the problem. The only thing we can do is replacing our iPhones with Android phones if we want to buy a membership card, and applying for new accounts if we want cheaper hotels. Not finding a way to fight back, we can’t do anything but accept them passively.
1.How does big data serve companies according to the text?
A.By being kind to all users.
B.By giving a discount to stable users.
C.By attracting new users by analyzing their shopping habits.
D.By recommending the same products with higher prices to regular users.
2.What do we know from the third paragraph?
A.Membership can rid you of all the ads.
B.Only by being a VIP can you get a better service.
C.The slow download speed is due to your poor network.
D.Advertising income is the biggest income for video websites.
3.What is the author’ attitude towards the chances of finding a way to fight back?
A.Uncertain. B.Casual.
C.Negative. D.Positive.
4.What is the main idea of the text?
A.The big data provides helpful information to users.
B.We have to accept online consumption as it is.
C.There exist many online consumption traps.
D.Regular customers are richer.
