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Most of us have looked up at the stars that fill the night sky and wondered whether we’re alone in the universe. Indeed, the question of whether there’ s life out there has been something humankind ’s been asking itself for countless years. But thanks to China’s Five-hundred-meter Aperture Spherical Telescope (FAST), the answer to this question may come a lot sooner than we expected.
The telescope has a huge round reflector, which measures 500 meters across and has a perimeter（周长）of 1.6 kilometers. Because of its great size, it would have been both difficult and inefficient to get FAST to move like a regular telescope. Instead, FAST’s designers came up with a great solution: its surface is made up of 4450 panels which can be individually adjusted. This clever design feature allows scientists to detect radio signals from any angle with a great degree of accuracy. “Panels can change their positions through connected wires and parallel （关联的） robots. We can control their position with an accuracy of 1 mm,” Zheng Yuanpeng, chief engineer of the telescope’s panel project, told Xinhua News Agency.
FAST’s engineers also had the task of finding a suitable location. As any interference would affect its ability to detect distant radio waves, it needed to be built in a remote area. Luckily, the perfect spot was found in the beautiful mountains of Guizhou Province. “There are three hills about 500 meters away from one another, creating a valley that is perfect to support the telescope," Sun Caihong, chief engineer of FAST’ s construction, told Xinhua.
And although it wasn’t yet fully operated, FAST had already made great discoveries by October 2017. Since 1967, only around 2000 pulsars （脉冲星） have been discovered, yet FAST had detected six more by October 2017. Once FAST is fully up and running, we may finally have the answer to one of the biggest questions in history.
1.What is the purpose of mentioning the question in Paragraph 1?
A.To introduce the new giant telescope.
B.To explain why there is life in universe.
C.To remind readers to think about the life in space.
D.To emphasize the question that should be answered.
2.What can we know from Paragraph 2?
A.The telescope is made up of many panels.
B.The area of FAST is about 800 square kilometers.
C.The engineer can handle FAST’s position accurately.
D.The individual panel helps scientists catch radio signals.
3.Why was FAST built in Guizhou?
A.Because Guizhou is a remote province.
B.Because Guizhou has an ideal valley.
C.Because Guizhou has beautiful mountains.
D.Because Guizhou has the ability to build it.
4.What does the last paragraph mainly talk about?
A.FAST’s timeline. B.FAST’s future.
C.FAST’s operation. D.FAST’s discoveries.
高三英语阅读理解中等难度题查看答案及解析
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When most of us look at our hands, we might notice that we need to clean, or stop biting our fingernails, and that’s about it. But if you ask a doctor, he can see a whole lot more. Everything from poor diet and stress to serious kidney (肾) problems can be revealed by a glance at your fingernails.
There are about 30 different nail signs that can be associated with medical issues, though may indicate more than one problem, according to Dr.Amy Derick, a clinical instructor of dermatology at Northwestern University.
Here are five of the things a doctor can tell about your health based on your fingernails.
1. People who aren’t eating well and lack vitamin or dietary may have thinner than normal nails, which are more likely to break.
2.Horizontal (水平的) lines are associated with serious physical stress. They frequently occur in people who have gone through chemotherapy(化疗).They can also occur after some illnesses, injuries, or with severe malnourishment(营养不良).Interestingly, there may be an altitude connection too. They’ve also been found in people who dove 1,000 feet and others who participated in an Everest exploration.
3. Vertical （垂直的）lines, however, are generally not such a big deal. Some people are more genetically prone to them than others, but they’re commonly associated with aging.
4. When people lack iron, their nails can turn spoon-like. Instead of curving down and covering the finger normally, they ’ll start to rise up on the sides and front, like the part of a spoon that holds liquid.
5. Kidney and liver problems can create “half-and-half nails”, where one part of the nail is white and the other part dark or pink, according to Derick.
Doctors note that because disease diagnosis is complex and some symptoms can be associated with different diseases, you should always see a medical professional if you are concerned about something you notice.
1. What is the main idea of the passage?
A. Doctors can tell us something about our health by looking at our nails.
B. We should see a doctor if we find nails in bad condition.
C. A famous doctor in the USA conducted an interesting research.
D. If we don’t want to get ill, we need to clean and stop biting our fingernails.
2. If we don’t eat well or regularly, our fingernails may ________.
A. become harder than normal nails.
B. become thinner than normal nails.
C. become “half-and-half” nails.
D. have horizontal and vertical lines.
3.Who will have horizontal lines on the nails ?
A. A cancer patient who has received normal treatment.
B. Hungry African children suffering from severe malnourishment.
C. An explorer who had reached Zhangjiajie in Hunan Province.
D. A patient with serious illness, like kidney and liver problems.
4. Which of the following best describes the nails that show people lack iron?
A. The nails are thinner and more likely to break.
B. The nails will curve down and cover the fingers.
C. The nails will start to rise up on the sides and front.
D. The nails will change their colours on the surface.
高三英语阅读理解困难题查看答案及解析
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Most of us would say that the older we get, the less we look forward to celebrating another birthday. For children, though, a birthday is that one occasion each year when they are the center of attention all day long.
It’s not surprising, then, that children’s birthday parties have turned into big business in America. Kids—or more likely their parents—often try to outdo one another in putting on the most extravagant birthday party. In the past, you might have hired a man with a horse to come by and give everyone horse rides. Today, you can hire an entire petting zoo’s or a truck filled with animals from abroad.
Barb Hill, a mother of two girls, doesn’t hold extravagant (奢侈的) parties, but she says she does feel pressure to come up with new ideas each year. Her daughter Fiona celebrated her most recent birthday, her eighth, at a sporting-goods store. The kids enjoyed the climbing wall, as well as the pizza and cupcakes. “They always want to do something that nobody else has done yet,” Barb says. You also have to decide how many guests to invite, and if you’re celebrating at a place other than home, that means figuring out how to transport everyone.
William Doherty, a professor at the University of Minnesota, recently started a project called Birthdays without Pressure. Its website (www. birthdayswithoutpressure.org) gives parents the resources to make kids’ birthday parties less stressful and more fun for all. “Our goal was to start a local and national conversation about what’s happened to birthday parties,” Doherty told me. “We’ve succeeded beyond our expectations—tens of thousands of parents are viewing our website, contacting us and taking our online quizzes.”
In the end, most parents would agree that the best parties are usually the ones where the kids have time to hang out and play with each other. After all, isn’t what being a kid is all about?
1. The purpose of this passage is to tell us_________.
A.all the children look forward to celebrating their birthday
B.the children’s birthday parties have turned into big business in America
C.parents would like to make children’s birthday parties less stressful and more fun for all
D.parents don’t know how to hold children’s birthday parties
2. Which of the following sentences is TRUE ______.
A.The girl didn’t enjoy the party held by her mother.
B.The project called Birthdays without Pressure is popular with parents.
C.Children look forward to their birthday parties because they like extravagant parties.
D.Parents feel like hiring an entire petting zoo for their children.
3. The aim of the project called Birthdays without Pressure is to______.
A.attract parents to view the website
B.provide resources for making kids’ birthday parties
C.release parents’ stress of organizing children’s birthday parties
D.hold conversation about what’s happened to birthday parties
4. The best title for this passage may probably be ______.
A project called Birthdays without Pressure
B.Children enjoy their birthday parties
C. How to hold children’s birthday parties
D. How children feel about their birthday parties
高三英语阅读理解简单题查看答案及解析
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Losing a wallet is one of those careless acts most of us have come across, at some point or the other in our lives. While most of us tend to move on after mourning over the lost necessities, there are a few lucky ones who get them back, with the help of the police or the generosity of the person who finds it.
And then there is Hunter Shamatt, who not only got back his wallet but with some added happiness that was tagged along!
Hunter was on his way to attend his sister’s wedding on a Las Vegas-bound flight when he realized that he has misplaced his wallet, sometime during the journey. Hunter’s family reached out to the Frontier flight to enquire if someone had handed it over to them. Unfortunately, there was no sign of the missing wallet.
But wait. The story was far from over. Just a week after Hunter’s sister’s wedding, he received a package in his mail. And guess what? There was his wallet! Surprisingly, the wallet was not the only thing that was inside the package. It also had a handwritten note for Hunter which turned out to be a bonus! The piece of paper read,
“Hunter, Found this on a Frontier flight from Omaha to Denver — row 12, seat F wedged between the seat and wall. Thought you might want it back. All the best.
P.S. I rounded your cash up to an even $100, so you could celebrate getting your wallet back. HAVE FUN!!!”
Moved by the touching gesture, Hunter’s mom, Jeannie Shamatt, decided to write a post on Facebook giving a detailed description of the incident. She also urged everyone to share the post as she would like to meet and greet the person behind the act of kindness, personally.
Now, thanks to the astonishing power of social media, the post finally reached the man behind the note. The man was identified as Todd Brown and it was one of his co-workers who made sure Jeannie Shamatt’s post reaches his colleague. Jeannie turned to Facebook again to thank Brown and his family for restoring her faith in humanity.
“I try to teach my children to do the right things in life, help people when you can regardless of the outcome. This story is more about restoring faith in people than anything. We hear a lot of bad news but not enough good news. I personally want to thank Todd Brown and his wife for restoring faith that there are amazing people out there.”
1.How did Hunter Shamatt get his wallet back?
A. Todd Brown sent it back.
B. The police mailed it back.
C. He found the wallet by himself.
D. The Frontier flight helped him get it back.
2.What things were found in the package?
A. A wallet and a tag. B. A wallet and a note.
C. A note and a tag. D. A mail and a tag.
3.How did Hunter’s mom feel after receiving the package?
A. Touched. B. Uninterested.
C. Satisfied. D. Confused.
4.What does the author intend to convey?
A. Friendship. B. Freedom.
C. Kindness. D. Justice.
高三英语阅读理解简单题查看答案及解析
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Most of us don’t reach for that gnarled (多瘤的) carrot when selecting our produce at the local supermarket. That’s exactly why Americans waste up to 40% of edible food every year. This unbelievable number has sparked the “ugly food” movement, inspiring many companies to sell ugly fruit and vegetables to consumers, rather than throwing them in the trash.
One San Francisco organization is taking a unique approach. The Salvage Supperclub hosts fancy dinners inside dumpsters (垃圾箱) where they serve dishes entirely prepared with food that would have otherwise gone to waste.
Josh Treuhaft, founder of these ugly food dinners, originally came up with the idea to bring about the awareness of America’s food waste problem. “There is undeveloped potential in their food that for some reason, not to their own fault, is going to waste,” he told Seeker’s Laura Ling.
Treuhaft isn’t alone in his effort to reduce America’s food waste. A change.org request last year called for Whole Foods to become part of the ugly food movement. They sold misshapen (畸形的) fruits and vegetables in Northern California stores.
Selling imperfect produce is still relatively rare right now, which can be partially attributed to a supply issue rather than a lack of willing participants. Raley’s, a Sacramento-based grocery chain, started an ugly food pilot program called “Real Good”, but discontinued it after 90 days saying they had “some challenges sourcing the product” A grower might have large amounts of ugly produce one year due to terrible weather, but much less the next year if the weather is better. Harvests constantly vary and retailers are more likely to buy ugly produce in large number rather than just a few pounds at a time.
This is why organizations like the Salvage Supperclub are playing an important role in the prevention of food waste. The Salvage Supperclub takes it a step further by not only buying the ugly product, but turning it into a good dining experience as well.
1.What does the underlined words “edible food” in Paragraph 1 refer to?
A. Healthy food. B. Expensive food.
C. Food suitable to eat. D. Food grown locally.
2.Why does the Salvage Supperclub have dinners inside the dumpsters?
A. To share their fancy ideas.
B. To warn people not to waste.
C. To show waste should be reused.
D. To advise people not to throw dumpsters.
3.What makes Raley’s stop its “Real Good” after 90 days of its operation?
A. Lack of sources of product.
B. Retailers’ pursuing larger profit.
C. Bad harvests due to bad weather.
D. People’s unwillingness to buy imperfect produce.
4.Which of the following can be the best title for the text?
A. Joining in the Ugly Food Movement.
B. An Unusual Dining Experience.
C. Making Full Use of Ugly Food.
D. The Food Waste Problem in America.
高三英语阅读理解中等难度题查看答案及解析
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Most of us don’t reach for that gnarled (多节的) carrots when selecting our produce at the local supermarket. That’s exactly why Americans waste up to 40% of eatable food every year. This unbelievable number has sparked the “ugly food” movement, and inspired many companies to sell misshapen fruit and vegetables to consumers, rather than throw them in the trash.
One San Francisco organization is taking a unique approach to this idea. The Salvage Supperclub hosts fancy dinners inside dumper truck (卸车) where they serve dishes entirely prepared with food that would have otherwise gone to waste.
Josh Treuhaft, founder of these ugly food dinners, originally came up with the idea 10 bring awareness to America’s food waste problem. “There is undeveloped potential in their food that for some reason, not to their own fault, is going to waste,” he told Seeker’s Laura Ling.
Treuhaft isn’t alone in his effort to reduce America’s food waste. A Change, org last year willed for Whole Foods to become part of the ugly food movement. They sold misshapen fruit and vegetables in Northern California stores.
Selling imperfect produce is still relatively rare right now, which can be partially due to a supply issue rather than a lack of willing participants. Raley’s, a Sacramento-based grocery chain, started an ugly food pilot program called “Real Good”, but discontinued it after 90 days saying they had “some challenges sourcing the product”. A grower might have large amounts of ugly produce one year due to terrible weather, but much less the next year if the weather has been more ideal. Harvests constantly vary and retailers are more likely to buy ugly produce in large number rather than just a few pounds at a time.
This is why organizations like Imperfect Produce and Salvage Supperclub are playing an important role in the prevention of food waste. Salvage Supperclub takes it a step further by not only buying the ugly produce, but turning it into a good dining experience as well.
1.What can we infer from Paragraph 1?
A. People usually prefer Rood-looking produce.
B. Gnarled carrots mostly appear in the supermarket.
C. Many companies find new business opportunities.
D. Americans eat less fruit and vegetables than expected.
2.Why does the Salvage Supperclub have dinners inside the dumper truck?
A. To prove his fancy idea.
B. To remind people not to waste.
C. To show waste can be eaten.
D. To advise people lo dine in dumper truck.
3.What’s Josh Treuhaft’s advice to reduce America’s food waste?
A. People should reduce the ugly food.
B. People should make full use of ugly food.
C. People should be more aware of food shortage.
D. People should develop their potential in producing food.
4.Why did Raley’s stop its “Real Good” after 90 days?
A. Retailers’ pursuing larger profit.
B. Bad harvests due to bad weather.
C. Lack of steady sources of produce.
D. People’s unwillingness to buy imperfect produce.
高三英语阅读理解困难题查看答案及解析
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Sofia looked around at all the faces: she had the impression that she _____ most of the guests before.
A. has seen B. had seen C. saw D. would see
高三英语单项填空中等难度题查看答案及解析
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Look at any advertisement for a fashion（时尚）store,and you may notice that most of the models are teens.In Western culture,especially,fashion is an extremely important component of teenage life.But "Why?" you may ask.
For teenagers,fashion is first and foremost a social statement.It is a means of expression to their peers（同龄人）and the rest of the world.
Fashion also provides teenagers a sense of identity by signalling which "grouping" they belong to.It many signal a more independent or inclusive personality.
Teens can be extremely conscious about overall image.They will often make use of fashion as a means to attract a certain type of person.
Rebellion（叛离）may also be acted out via fashion.Since rebellion is often a huge aspect of a teenager's life, teens often use shocking fashion to rebel against their parents,their classmates, and/or society.
Many teens pick up on fashion trends in an effort to avoid losing face.Poor fashion choices in the eyes of others can often be an open door to ridicule.
Often,fashion for teenagers is the result of the desire to be like a celebrity（名人）.Celebrities are perhaps the greatest influences on teenagers in the modern world,and the can have a huge effect on a teen's ideas about fashion and its importance.
1.What is the best tide for the text?
A. Why is fashion so important to teens? B. Why do teens learn from celebrities?
C. What fashion do teens want? D. Who leads the fashion?
2.For teens,fashion .
A. has a deep effect on celebrities B. is about expressing themselves
C. can prevent them from rebelling D. will remove their peer pressure
3.Which of the following can describe the main point of Paragraph 3?
A. Fashion and independence. B. Fashion and peers.
C. Fashion and teenagers. D. Fashion and identity.
高三英语阅读理解中等难度题查看答案及解析
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That’s the way I look at most of _______________ has happened to me.
A. that B. which
C. what D. all
高三英语单项填空中等难度题查看答案及解析
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Most of us have gone away from “mad men” in the street, only to realize that they are in fact using a Bluetooth headset. Now a new University of Pennsylvania study shows that muttering can actually help people find lost objects—in other words, saying the name of an object helps you find it more quickly.
Previous work has suggested that speaking aloud while performing step-by-step tasks, like tying shoelaces (鞋带), can help kids guide their behavior and let them focus on the job in hand. However, scientists were not sure if speaking aloud when performing tasks could help adults in the same way, especially when looking for particular objects. Professor Gary Lupan and Daniel Swingley, writing for the Quarterly Journal of Experimental Psychology, carried out some experiments. They hoped to give the fact that next time you lose your keys, muttering “keys, keys, keys” can in fact help you find them.
Inspired by viewing people muttering to themselves as they try to find things like peanut butter in a supermarket, the researchers conducted two experiments to see if this actually worked. In the first, participants were shown 20 pictures of various objects and were asked to find a certain one, with some seeing a text label (标签) telling them what they were looking for. These participants were then asked to search for the object again while saying the word to themselves, with results showing that saying it aloud helped people find the object more quickly.
The second experiment saw participants performing a shopping task, where they were shown photographs of items (物品) commonly found on supermarket shelves. They were asked to find all examples of a particular item, so if they were asked for apples they had to find all the bags of apples, as quickly as possible. The researchers found that there was also an advantage in saying the name of the product aloud when they were searching for something familiar.
The University of Pennsylvania study shows that muttering can actually help people reach the target object—in other words, muttering to oneself helps to focus the mind on something. It works more effectively than seeing a written description. Repeating the word over and over again helps even more.
1.The second paragraph tells us that ________.
A. muttering helps people to control their behavior
B. muttering has the same effect on both kids and adults
C. it is really hard to carry out the experiments on adults
D. it is easier for kids to do step-by-step tasks by muttering
2.According to the passage, muttering can help people in a way that ________.
A. it completely controls people’s mind
B. it directly explains people’s behavior
C. they concentrate more on their job at hand
D. they reduce their pressure from their mind
3.The two experiments mentioned in the passage show that ________.
A. participants were better at doing the shopping task
B. it took the participants the same time to find the objects
C. showing pictures of the items helped find them more quickly
D. participants saying aloud the word found the object more quickly
4.What is the best title of the passage?
A. Effects of Muttering
B. How to Find Lost Objects
C. What to Mutter to Yourself
D. Methods of Remembering Objects
高三英语阅读理解中等难度题查看答案及解析