Study lamps are vital to learning. Finding the best lighting for study is important for everyone. For the sake of maximizing the use of time and energy, and for the very important goal of preserving eyesight, anyone reading for understanding needs not only adequate light, but light that ensures reading with ease. Only when eye strain(疲劳) is not interfering does the learning process move forward.
Desk lamps
You can purchase a large number of stylish desk lamps from lamp stores and online. The products range from precious ones to casual ones, from traditional ones to ultra-modern(超现代的)ones. They feature such desirable additions as dimmer switches and night lights. Some have battery backup in case of power failure and a choice of OttLite bulbs that duplicate natural sunlight.
LED desk lamps
MetaEfficient reviews the most recommended LED desk lamps. These lamps come in many different styles and brand names and are valued for their directed beam of light, lack of heat and exceptional energy efficiency and brilliance. LED study lamps are made in goose neck and swivel(转圈)styles, as well as the more modern Z-bar and the human-like- figure of the Moppel light.
Safest desk lamps
According to Knol, StudyLite is the safest of all desk lamp designs. Not only does it provide LED light, freeing people from UV and IR radiation, but it has been tested to be eye-friendly. It has all the advantages-low cost and long life-of any LED lamps, but it is also equipped with rechargeable battery. Its design and choice of colors make it desirable for more than its efficiency.
1.What is the feature of Desk lamps?
A.They are bought easily online. B.Their prices vary.
C.Their styles are various. D.They have satisfactory additions.
2.What do LED lamps and Study Lite lamps have in common?
A.Low cost and long life. B.Excellent energy efficiency and brightness.
C.Rechargeable batteries. D.Their design and color choice
3.What is the main purpose of the text?
A.To give us some tips on how to protect our eyes.
B.To give us some information on the best study lamps.
C.To introduce the method of choosing a proper lamp.
D.To present the finding that light affects study.
难度: 中等查看答案及解析
German cities are redrawing road markings to create new cycle paths for the duration of the Covid-19 lockdown, as cyclists demand more space to physically distance on their way to work.
Local authorities in the Kreuzberg district of Berlin trialled（试行）temporary widening of two cycle paths on 27 March, arguing it would help cyclists keep the required 1.5-metre distance apart while car traffic was down owing to Germans' coronavirus（冠状病毒）restrictions.
On Friday, the council declared the plan a success because it had improved cycling safety while not blocking traffic.
The council said it had used removable tape and mobile signs to mark out the widened paths, which can be removed when the current restrictions on movement are lifted.
Residents in 133 other German cities have formally submitted applications for similar pop-up bike paths to their local authorities on the back of a campaign by Environmental Action Germany(DUH), an environmental NGO.
The campaign group cites new research linking air pollution to higher coronavirus death rates as an argument for redrawing road signs across the country. "The coronavirus is showing us that clean air is necessary," said DUH's chair, Jurgen Resch. "It is now especially important to temporarily make it more important for people to move safely on their bikes. This will help improve air quality, enable exercise in fresh air while keeping a safe distance and avoid unnecessary accidents."
In Germany, bike repair shops are allowed to work because of the Covid-19 going on. Three federal states, Berlin, Saxony-Anhalt and Mecklenburg-Vorpommern, have allowed bike shops to stay open.
1.Why did German cities decide to widen temporary cycle paths?
A.To avoid traffic jams. B.To go to work conveniently.
C.To reduce air pollution. D.To keep proper distance between cyclists.
2.How did the road workers sign the widened paths?
A.By using removable tape and signs. B.By painting oil lines.
C.By hanging special boards. D.By pulling up attractive ropes.
3.What does the underlined word "pop-up" in paragraph 5 probably mean?
A.Substituted. B.Limited.
C.Expanded. D.Separated.
4.What can we infer from the last paragraph?
A.Special measures is taken to raise the production of bicycles.
B.All transportation means except bicycling are forbidden.
C.The use of bicycles can stop the Covid-19 from going on.
D.Bicycle riding is encouraged to lower the risk of gathering.
难度: 中等查看答案及解析
A planet the size of Jupiter has been discovered and it is one of the hottest ones known to us. This has made scientists think about how planets are formed.
Planets such as Earth have more oxygen than carbon, but what if the composition（组成）is just the opposite? This is a question opened up by a recent discovery of a diamond planet by US and UK scientists. The planet is 1200 light years away from Earth and was observed using NASA's Spitzer Space Telescope. Dr Marek Kukula explained that researchers initially used the Super WASP(Wide Angle Search for Planets) robotic observatories operating continuously, all year around. They detected the planet, then it was observed with the Spitzer Space Telescope, which detected the heat coming from the planet, and from that heat signature they can tell what this planet is made from.
The planet is very different to Earth. "It's giant planet," explains Dr Kukula, "a gas planet, a bit like Jupiter in our solar system. But the interesting thing that they've discovered is that it has a very different composition to the planets in our solar system. This planet has more carbon than oxygen." This suggests that there is more than one way to make a solar system and the range of planets in the universe could be much wider than previously thought.
Dr Kukula says that if there are smaller planets in the same solar system with a similar composition, rich in carbon, their rocks could be rich in minerals such as carbon and diamonds, unlike Earth which has silica（硅石）, the sand that rocks on Earth are made from. "This is where this diamond planet idea comes from; they haven't actually detected a diamond planet yet," explains Dr Kukula.it' s hypothetical（假设的）, "but you can imagine strange landscapes with black graphite rocks lying around and the surface could be covered with sticky liquids instead of water".
1.What planet has been discovered recently?
A.A planet with more oxygen. B.A planet with more carbon
C.A planet hotter than others. D.A planet bigger than Jupiter.
2.How do scientists decide a planet's composition?
A.By its heat. B.By its size.
C.By telescope. D.By distance.
3.What can we learn about the new planet from paragraph 3?
A.It is in our solar system. B.It looks like Earth.
C.It is completely different from Jupiter. D.It contains a lot of gas.
4.Why do scientists call the planet "a diamond planet"?
A.It is rich in carbon. B.It is rich in silica.
C.It is rich in water. D.It is rich in sticky liquids.
难度: 困难查看答案及解析
Foldable phones are once again facing questions about their durability(耐久性).The Galaxy Z Flip and the Motorola Razr are now both available to buy in the US-but early reports suggest the screens are easily damaged.
One media published photos of two layers of the Razr's display separating, affecting the touch screen. The Galaxy flip, meanwhile, boasts(自夸)a "flexible glass" display---but tests appear to show it scratching(刮擦)as easily as plastic.
In a statement, Samsung said the display had a protective layer, and had undergone extensive testing. "While the display does bend, it should be handled with care, "it said.
The Z Flip's "pretty thin glass" is one of Samsung's primary marketing messages for the new phone. But a durability test conducted by popular Zack Nelson, a regular buyer, suggested it was no more durable than soft plastic screen, and could even be dented(痕)by fingernail.
Nelson said Samsung's screen scratched exactly how plastic screen would react. "I don't know what material this is, but Samsung definitely shouldn't be calling it glass," he said. He found that the screen of the Motorola Razr scratched as easily but it is not marketed as "glass".
The Motorola Razr was put on sale 13 days ago in the US, but Raymond Wong, an editor says the flexible screen on his handset has already broken. The upper layer of the Razr's screen separated from the bottom, creating "a giant horizontal air bubble" for no apparent reason. He wrote that the fault appeared after 45-minute train ride during which the phone was in his pocket. The screen was completely warped from hinge-to-hinge with the top layer raised like a poorly applied screen protector. But Mr. Wong said that apart from the visual problem, the damage has affected the responsiveness of the touchscreen.
1.What attitude do the buyers have to the quality of Galaxy Flip and Razr?
A.Suspicious. B.Objective.
C.Optimistic. D.Unconcerned.
2.What is the outstanding feature of the Z Flip by Samsung?
A.Low price. B.Portable style.
C.Extremely thin screen. D.Protective function.
3.Why does Nelson complain about Samsung?
A.He is angry at its post-sale service.
B.He is strict in its screen materials.
C.He is disappointed at its unfair competition.
D.He is unsatisfied with its inexact statement.
4.What is the best title of the text?
A.Cheat always exists in business
B.Foldable phones may not be all that great
C.Different brands have their special features
D.Disadvantages of two kinds of phones
难度: 困难查看答案及解析
The outbreak has forced people to work from home and given many couples the chance to see each other at work. But, after all, living together and working together are not the same. 1.
1. Put the problem on the table
Knowing what your partner does is one thing but seeing them in action is another. "We are forced into the intimacy（亲密）, not just with spouses（配偶）, but also with kids or whoever else is in the home," said Karen Bridbord, a psychologist in New York City.2. Talk about any insecurities you may have whether it's participating in a video meeting or being eavesdropped on and what you need in terms of a work environment. Then create a schedule and set boundaries when it comes to separating work life and personal life.
2.3.
You might be learning that your spouse is fan of all the office cliches or holds too many meetings---but it's best to keep that to yourself. Even if you think your intentions are good, don't offer any unsolicited（主动提供的）feedback when it comes to your partner's' work style. And don't mistake complaining as an opportunity to criticize. "Even if a partner is complaining about work, you shouldn't see that as an invitation or opportunity to provide critical feedback," said Anthony Chambers, a chief academic officer. "4."
3. Don't complain a lot
These working conditions aren't ideal for many people right now---especially if you are juggling kids and other care giving responsibilities 5.. However, try not to keep score of who is doing what around the house, or whose work is more pressing.
A.Provide an inside look.
B.Allow them to complain and you just listen.
C.Avoid treating each other like colleagues.
D.This can leave you feeling overburdened and exhausted.
E.The first step in making this situation work is to talk about it.
F.How to do with this "new colleague" to maintain a harmonious relationship?
G.In this way, you're more likely to arouse sympathy from the partner which will help negotiate boundaries.
难度: 中等查看答案及解析
Last week I went shopping in the supermarket. I got to the front of the ___________ and put my groceries through the checkout. I was about to pay, when I ___________ that I didn't have my bankcard with me. I _________.Then I remembered I left it at home when I ___________ something online. All I had was $30 in notes and some coins in my wallet. I was short ___________ at least $25, and I needed to buy most of the items.
I started to ___________ to the checkout lady. "I'm sorry, I stop the queue. Can I put these things back, and then think I'll ___________ these. Oh, no, need that."
An Irish lady was ___________ behind me, next in the queue. "Excuse me, Dear," she said. "Oh, I'm so sorry," I replied, "I'm ___________ you up." "Of course not. I know ____________ you feel. This happens to all of us at some point. Now please use my ____________ to pay the bill and you can be on your way."
I was astonished by her kindness, ____________ even. No matter how I insisted otherwise, she was ________ to help me. Afterwards I asked for her telephone number to ____________ and pay her back. "No," she said, "rather pay it forward. You may do a good deed for the next person in need."
By helping others, can we start chain ____________ of positive feeling and charity that can benefit our whole society?
1.A.table B.supermarket C.queue D.shelf
2.A.realized B.knew C.recognized D.observed
3.A.hesitated B.paused C.panicked D.struggled
4.A.explored B.purchased C.advocated D.delivered
5.A.by B.under C.on D.with
6.A.cry B.apologise C.complain D.explain
7.A.borrow B.drop C.follow D.take
8.A.standing B.supporting C.blaming D.shouting
9.A.turning B.putting C.joining D.holding
10.A.what B.how C.why D.when
11.A.card B.fame C.income D.identity
12.A.abnormal B.anxious C.embarrassed D.desperate
13.A.convinced B.determined C.excited D.reluctant
14.A.fit in B.get through C.look up D.get in touch
15.A.reaction B.sympathy C.satisfaction D.relationship
难度: 简单查看答案及解析
阅读下面材料,在空白处填入一个单词或括号内单词的正确形式。
Trees, plants and flowers are all around us and we enjoy their beauty every day. However, we are so used to them 1. we may even take them for granted without 2.(realize) how much inspiration they have given us. In fact, nature has inspired many of the most 3.(fascinate) designs around us, including those in architecture. Nature 4. (present) in various architectural designs.
Today, architects continue to explore ways 5. (capture) the beauty of natural forms, to mimic the way nature works or even to make natural organisms part of a building. ArtScience Museum, Singapore was designed to show the 6. (connect) between nature and the modern city environment in which it sits. Visitors are often amazed to find themselves in an urban building that so 7.(true) captures the beauty of natural forms. Harare's Eastgate Centre is 8. superb example of biomimicry（仿生学）. To use biomimicry is to create structures 9.(base) on natural forms and processes. Creating buildings such as these enables us to live 10. closer harmony with our environment.
难度: 中等查看答案及解析
根据汉语和首字母提示写出单词的正确形式,每空限一词。
1.All parts of the museum are a__________(可进入的) to wheelchairs
2.The doctor r____________(推荐) swimming as the best all-round- exercise
3.If it's a choice between higher pay and job_____________(保障), I'd prefer to keep my job.
4.She was bit a_____________(担心的) at how much weight she'd lost
5.It's been a pleasure and a p_____________(特别优待) to work with you all
难度: 简单查看答案及解析
假定你是李华,你想邀请你的留学生朋友Chris参加“青年回乡建设美丽乡村”的志愿活动，请你根据下面所给的要求给他写一封邮件：
1. 活动时间、地点；
2. 活动带来的收获。
要求：1. 词数：80左右；
2 可适当增加细节，以使行文连贯。
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难度: 中等查看答案及解析
阅读下面材料,根据其内容和所给段落开头语续写两段，使之构成一篇完整的短文。续写的词数应为150左右。
Polly, my stepmom, suggested the sweetest name to our pet dog: Mercy. We don't know why she gave the strange name. We soon learned it was just what this new dog would need.
My parents' bad tempered dog would jump out of bed and go-go-go all day long. So when they brought home a Christmas tree, they expected everything would be out of order. However, to their astonishment, Mercy didn't seem to take any care. She paid zero attention to the tree which suddenly grew in her living room. Nor did she react to the fancy presents under it, including a wrapped box of Milk-Bones.
Dad and Polly were quite careful; they'd never had a dog that didn't force them to move everything to higher ground as if they were expecting a flood. But Mercy seemed to take no notice. He didn't take any glance at it at all.
A few days before Christmas, Polly awoke early in the morning as usual. She passed the dusty living room and then stopped in surprise. Glancing back into the room, she saw that every last present was gone. Only the tree was still there.
Had they been robbed? Why hadn't Mercy barked? Where was she? Had the robbers taken her away? Polly noticed scrap of ribbon（丝带） on the floor, then bit of torn wrapping paper few feet away, some lights beyond that. The clues all made a mark leading toward the back door.
Polly put on the switch, bathing the backyard in light. The perpetrator's（肇事者）head lifted and froze. Alarm and guilt made her eyes wide. Oh, yes, it was Mercy.
She lay under her favorite tree in soft nest of shredde（碎片） wrapping paper, chewed-up boxes, and curling（缠绕） bits of ribbon. Presents, unpacked from their packages, were spread over everywhere. Beautifully wrapped boxes had gaping holes. Pieces of paper were mixed with the last remaining evidence of gifts. All the gift tags（标签） that could have been used as thank-you cards were destroyed.
Clearly Mercy's self-control had failed.
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As for Thank-you cards, Mercy provided the answer.
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难度: 中等查看答案及解析