相关试卷

In 9th grade, I joined a military training (军训) camp. The special eye-opener forced my friends away, who were 1  to be away from their families while I turned excited at the 2 .

In the camp, the 3 was the first challenge. Honestly, I started to be 4 to my parents, who had insisted on doing my part at home. It's not as easy as it sounds. Not to mention, they had to do everything themselves, from dishes to 5 , for us without complaint. But in the camp, we got only 20 minutes during the break to make our beds, sweep the floor and do the washing.

Besides, from the moment I arrived, the camp impressed me most with a sense of 6 . The days were long and demanding, filled with 7  designed to push us to our limits. We had a(n)8  instructor whistling loudly at 5 a.m. Waken up early on cold December mornings, we were 9  to run four laps before breakfast. It was a real 10 . If one failed, the whole team got two more laps.

Gradually, the pain 11 . Later in the mountain climbing competition with Boy Team, we Girl Team was the champion! After those freezing mornings, we 12  it. Each member of our team worked so hard on our skills. 13 , the shared experiences taught us a lesson of 14 . We relied on each other for support. Overall, the experience, like the sun in that winter, warms my heart and 15  my way.

What are the health benefits of root vegetables?

Root vegetables are good for your digestion. The recommended daily fibre intake in the UK is 30g. Here's where root vegetables such as sweet potatoes, onions, turnips, parsnips and swede come in — they're rich in fibre.

Orange-coloured vegetables boost your immunity. These foods, known as carotenoids (类胡萝卜素), are a great source of vitamins A and C．  Otherwise, you will catch a cold easily. 

Carrots can protect against the sun. But did you know they also offer your skin some protection against sunburn? According to a meta-analysis of seven studies, beta-carotene supplementation over ten weeks appeared to have a protective effect. But don't use them as a substitute for a high SPF sunscreen!

 In a study spanning eight European countries, people who ate the most root vegetables had a 13 percent lower risk of developing type 2 diabetes compared with those who consumed the least. 

These vegetables are good for heart health. High cholesterol (胆固醇) can lead to heart problems. Studies have shown garlic can reduce cholesterol. Root vegetables' high fibre content also helps lower blood pressure as well as cholesterol.

A．It's a truth that carrots are good for eyes.

B．They could reduce your pressure in daily life.

C．The flavors of the root vegetables are various.

D．Root vegetables could reduce your risk of diabetes.

E．These support your immune system and help prevent cell damage.

F．Fibre helps us maintain a healthy weight and might even protect against bowel cancer.

G．Another shows eating 200g of raw carrot each day for three weeks reduces it by 11 percent.

We often think about relationships on a scale from positive to negative. We are drawn to loving family members, caring classmates and supportive mentors. We do our best to avoid the cruel uncle, the playground bully and the jerk boss.

But the most toxic relationships aren't the purely negative ones. They're the ones that are a mix of positive and negative. We often call them frenemies, supposed friends who sometimes help you and sometimes hurt you. But ifs not just friends. It's the in-laws who volunteer to watch your kids but belittle your parenting. The manager who praises your work but denies you a promotion.

Everyone knows how relationships like that can tie your stomach into a knot. But groundbreaking research led by the psychologists Bert Uchino and Julianne Holt-Lunstad shows that ambivalent (矛盾情绪的) relationships can be damaging to your health — even more than purely negative relationships.

I had assumed that with a neighbor or a colleague, having some positive interactions was better than all negative interactions. But being cheered on by the same person who cuts you down doesn't reduce the bad feelings; it increases them. And it's not just in your head: It leaves a trace in your heart and your blood.

Even a single ambivalent interaction can cause harm. In one experiment, people gave impromptu speeches on controversial topics in front of a friend who offered feedback. The researchers had randomly assigned the friend to give ambivalent or negative comments. Receiving mixed feedback caused higher blood pressure than pure criticism. "I would have gone about the topic differently, but you're doing fine" proved to be more distressing than "I totally disagree with everything you've said."

The evidence that ambivalent relationships can be bad for us is strong, but the reasons can be harder to read — just like the relationships themselves.

The most intuitive reason is that ambivalent relationships are unpredictable. With a clear enemy, you put up a shield when you cross paths. With a frenemy, you never know whether Dr. Jekyll or Mr. Hyde is going to show up. Feeling unsure can disrupt the body's calming system and activate a fight-or-flight response. It's unsettling to hope for a hug while also preparing for a likely quarrel.

Another factor is that unpleasant interactions are more painful in an ambivalent relationship. It's more upsetting to be let down by people you like sometimes than by people you dislike all the time. When someone stabs you in the back, it stings more if he's been friendly to your face.

Researchers have proposed a novel method for counting and tracking vehicles on public roads, a development that could improve current traffic systems and help travelers get to their destinations faster. 

Using the cameras already installed on campus buses at the Ohio State University, researchers proved that they could automatically and accurately measure counts of vehicles on urban roadways, detect objects in the road and distinguish parked vehicles from those that are moving. 

In previous studies, Ohio State researchers found that using these mobile cameras provides much better spatial and temporal (时间的) coverage than relying on often temporarily placed sensors that don't provide a view of many streets and roads in a city.

"If we collect and process more high-resolution (高清) spatial information about what's happening on the roads, then planners could better understand changes in demand, effectively improving efficiency in the broader transportation system," said Keith Redmill, lead author of the study.

"If we can measure traffic in a way that is as good or better than what is conventionally done with fixed sensors, then we will have created something incredibly useful extremely cheaply," he said. "Our goal is to start building a system that could do this without much manual intervention because if you want to collect this information over lots of potential vehicles and lots of time, it's worth fully automating that process."

While still a long way from total implementation (实施), the study suggests the system's results bear promise for the future of intelligent traffic surveillance. Transportation planners, engineers and operators make vital decisions about the future of our roadways, so when designing transportation systems to work over the next 30 to 50 years, it's necessary that we give them data that allows them to improve the efficiency of the system and the level of service provided to travelers.

Ryan is a good kid. He gets great grades, he plays lacrosse (长曲棍球), and he is well-liked. So Jennifer and her husband didn't see any reason why their sixth-grade son couldn't have an Instagram account, until Ryan posted a photo of himself holding an empty beer bottle that his father had just finished. "My husband saw the photo pop up on Ryan's account and went up the stairs in seconds, demanding that he should take it down," Jennifer says. "I don't think my son realized how bad his picture looked. He was trying to be funny, but he's in sixth grade! Even if he was simply posing, that picture was inappropriate."

With the popularity of photo-sharing site Instagram, it's easy for parents to have a false sense of security. Unlike Facebook or Twitter, Instagram is only for posting pictures and with the 13+ age requirement and privacy feature, so it seems like an almost harmless site for children. How much trouble could they stir up? But that's not the fact.

Shockingly, some kids are paying for attention on social media. When Paula Pryor found a mysterious $700 charge on her credit card, the last thing she suspected it to be was payment to a company that helped acquire "likes" on Instagram pictures. "My son Hayden thought it was only ten dollars, but it was ten dollars per ‘like'," says Pryor.

Often, it's not your own teen that's cause for concern — it's someone else's kid. Megan Koster couldn't figure out why her daughter Delaney suddenly became so anxious about whether her panty line could be seen through her jeans. Finally, Delaney said that she was worried someone would take a photo and post it on Instagram. "I don't think I would have survived middle school if sites like this had existed back then," Koster says.

STEM Summer Programs for High School Students

STEM is a term that stands for science, technology, engineering, and mathematics. Here is a list of some of the best STEM summer camps for high school students. 

Future Matters Program

It is an 8-week paid summer research experience for high school students. This is a hands-on program for students interested in going after a career in medical research. Students will attend seminars led by faculty and participate in discussions with peers. 

Simons Summer Research

It is a seven-week program located at Stony Brook University. Students will have the opportunity to participate in special workshops, tours and events free of charge. They will conclude the program b producing a written research abstract and research poster. 

Research Science Institute

It is the first cost-free summer program of its kind. During this six-week program, students will dive deeper into the world of science and engineering by experiencing the entire research cycle. In this program students attend classes conducted by famous professors and prepare written and oral presentations to present their research. 

Program in Math for Young Scientists

This program is a six-week intensive mathematics program designed for students across the globe. Unlike common programs, it offers a great deal of independence for students to choose their own schedules and decide what they want to study. Besides learning, there is also "mandatory(强制的) fun time" built into the weekly schedule so that students are able to have non-math related activities.

注意：1. 词数100左右；2. 可适当增加细节，以使行文连贯。

增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。

删除：把多余的词用斜线（＼）划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1. 每处错误及其修改均仅限一词；2. 只允许修改10处，多者（从第11处起）不计分。

My parents and I go on a road trip along G318 in this summer. It is the longest national highway in China from Shanghai to Tibet, along that we enjoyed many famous place of interest. Of all the places, the scenery from Sichuan to Tibet impressed us much. We saw the blue sky but white clouds. With the fresh air refreshed our body and mind, we felt quite relaxed. In addition, the custom of the local people enabled us to have a deeply understanding of our motherland and people. This 10-day journey left them with a strong memory. What wonderful journey it was!

Duolun county, (locate) in Inner Mongolia, only 180 kilometers away from Beijing，once suffered severe erosion and desertification（沙漠化）.

Ma Yunping, a retired soldier, (sell) six cows to collect 7,000 yuan and decided to contract 3,700 mu of deserted sandy land. Due to Duolun's unique geological（地质） environment, which consists mainly of shifting sand dunes（沙丘）, the inexperienced Ma tried planting grass under the (guide) of the forestry department. However, the sandstorms came frequently. He failed many times continued trying, learning from his mistakes.

During the first three years, planting grass became his primary job. Slowly, the yellow sand was stabilized, and touch of green appeared. In 2016, Ma established a (profession) organization, which now has over 40 members. "I want everyone in my village to (active) participate in preventing and treating desertification and to share in the green achievements," he said.

So far, in this area, Ma has planted about 400,000 trees in total. All of them have grown into flourishing vegetation, and not a bit of yellow sand can (find). Reflecting the 20-year journey of fighting against desertification, Ma has long engraved the patches of green on the dunes into his heart. "I am so fond of the greenery, and I want to keep (follow) it," Ma said.

Harry Linehan, 13, and his brother Tom, 15, are both members of the Sorrento Surf Life Saving Club. Last Sunday morning, they were training at the beach when a couple 1  and alerted them to a man offshore who was in 2 .

There were no lifeguards 3 , so Tom made a beeline to the man on his racing paddleboard (冲浪板) and shouted to Harry for 4 . And, as any younger brother would, Harry 5 . When the boys got out to the man, they noticed he was 6 to keep his head above water. With great efforts, the boys 7 to get the man on a racing board and 8 pulled him and the heavy kayak (独木舟) back to shore. 9 , the man was OK and did not need further medical assistance. "He 10 us, but he was definitely in a state of 11 ," said Tom.

A representative from Surf Life Saving Club arrived shortly afterwards and was 12 the boys had been able to put their training into 13 . Their father Nathan said his sons had been 14 for situations exactly like this. "The purpose of the organisation (SLS) is to teach people 15 so they can use them when needed. The 16 just put them into action," he said.

Harry has a surf rescue certificate and Tom 17 a bronze medal in a surfing competition only a week before the 18 . "If I didn't have the training I wouldn't have known what to do... you don't realize the skills you have until you 19 them," said Tom. "Anyone with the 20 training would have done the same thing."

How to stay healthy on holiday

Taking time to relax on holiday may be good for our health. . Here's how to stay healthy when you travel.

Plan before you go

Besides the stress of organizing your break in the first place, there's the added anxiety of remembering to buy and pack everything you need, as well as getting where you need to go on time. To avoid this, as soon as you've booked your holiday, list the travel documents you'll need. Check you have them and they're valid (有效的). Then start packing several weeks in advance, giving yourself time to buy some daily necessities. .

Try to forget the cares of everyday life. You can achieve this by ensuring you don't check emails or social media, or feel obligated to use it to record your best holiday moments. Ideally, turn off notices, limit your screen time and try to focus on the present moment. That will enable you to relax and make special memories.

Eat and drink well and mindfully

. Take time to really enjoy all the flavors. However, you should be aware that too many alcoholic drinks can cause "holiday heart", characterized by an irregular rhythm. What's worse, if you're holidaying in a hot climate, that can also result in dehydration (脱水).

Get active

Try a new activity. Consider walking and swimming or tennis. . Remember that being active not only helps you stay fit during the holiday, but also makes you feel fitter and more refreshed once you're back.

A. Ignore all the barriers in life

B. Get rid of the digital addiction

C. But there's a physical reason for this

D. However, too much relaxation also has opposite effects

E. Part of the fun of going away is experiencing the cuisine of other places

F. On departure day, leave more time than you need to get to an airport or port

G. If you're somewhere hot, it's best to work out in the early morning or evening

The concentric circles（同心圆状斑点）, also known as eyespots on butterfly, not only look like real eyes but may also appear to glare directly at predators（捕食者）from many directions, scientists have found. This visual illusion, called the "Mona Lisa effect", could scare would-be attackers and buy the insects enough time to escape.

Scientists suspect that eyespots, with dark "pupils（瞳孔）" in the center look like real eyes to predators. Hannah Rowland, an ecologist at the Max Planck Institute wanted to see if the direction of this fake gaze contributed to the effect.

First, Rowland and her co-author trained chicks to attack a worm hidden behind a paper printout of two eyespots at the end of a path. When the eyespots' pupils were specifically pointed in the chicks' direction, the birds repeatedly ran toward the paper and then backed away, and they waited a few minutes before attacking. But when the pupils instead appeared to look away from the direction of the chicks' approach, the birds attacked in seconds. Centrally located pupils, though not as effective as ones that stared directly at the chicks, resulted in longer delays than pupils that looked the other way.

"This suggests that they really are paying attention to the direction of the pupils in the eyespots and are perceiving them as eyelike stimulation. The concentric eyespots found most often in the insect world may seem to the chicks like a pair of eyes that follow them regardless of approach angle," says Rowland.

National University of Singapore evolutionary biologist Antonia Monteiro, who was not involved in the research, says the study is a "cool" demonstration of an evolutionary theory for eyespots. "These butterflies can be encountered from all angles, so having the pupil centrally located ends up being pretty good," Monteiro says. Still, she says, the eyespots used in the study were several millimeters larger than even the largest commonly found in nature, raising the possibility that the chicks may have been extra frightened by the size of the paper eyes.

Right now, over 3,300 high school and community teams are assembling（聚集）around the world in anticipation of the upcoming season of the FIRST (For Inspiration and Recognition of Science and Technology) Robotics Competition, which will begin an intense eight weeks of designing, building, and programming new devices in January.

In two-and-half minute matches, robots compete in groups of 3-vs-3 on a volleyball-sized playing area. Each match starts with fifteen seconds of autonomous action, when robots are programmed to score points on their own. Then, behind a plexi shield（有机防护罩）, the humans step up to control their devices, and it's on-speed, power, grace, defense, teamwork, showboating and the occasional collision with bits of plastic and metal flying around.

Robotics competitions are nothing new, but over the last few years, the FIRST Robotics Competition has developed from a fascinating after-school activity to having a real impact on the tech and engineering world. Demand for workers in fields like automation and connectivity, against recent declines in engineering college graduates, makes a recover, showing multiple years of hands-on high school robotics increasingly desirable in corporate America. "We like to see evidence of project-based learning, working in teams, hands-on experience and that sense of discovery," says Jennifer Cluett, head of admissions at Worcester Polytechnic Institute.

A who's-who list of FIRST sponsors-including Coca Cola, Amazon, Apple and Disney -shows how eager big businesses are to prime the pipeline. "Traditionally we would look very heavily at a college GPA（平均分）. But increasingly companies are looking for more well-rounded employees," says Jody Howard, vice president of innovation and emerging technology at Caterpillar Inc. "What's so interesting about FIRST is that, while they may be coming out with robotic or programming skills, it's really the teaming and problem-solving that make them stand out."

For working parents with busy schedule, mornings are hell: preparing meals, ironing clothes, feeding the children, packing lunches, ensuring everyone has what they need for the day... But I'm pleased to say my perspective on mornings is sunnier than most parents, though being woken at 6 am by kids was hardly a welcome addition to the night owl like me.

The different views first arise partly from opinions on television. I don't see the harm in letting my kids watch a bit of television before school, so long as they still make time to get dressed, eat breakfast and brush their teeth. This balance took years to achieve: a routine steadily drilled into them via daily practice -pause the TV program with complaints and screams-to fulfil each everyday activity; but, now they've observed that the quicker they perform their essential tasks, the quicker their entertainment will restart.

With morning necessities completed with speed and proficiency, then comes the 15-minute walk to school. In our family, it's me and the dog who do the school run, and it's actually one of my favourite times of the day. This quarter of an hour provides me privileged access to my kids when they're at their freshest; rather than at the end of the day, when they're tired, hungry and annoyed. They ask stimulating questions, "How is ice cream made?" "How long would it take to drive to Mars?", but they usually can't hear my answers over the drowning noise of the traffic.

Best of all, there's the walk back: just me and the dog, enjoying the silence. A moment to recharge and reset, ahead of a day's work, and I am grateful for the joy of my family, and perhaps more grateful still that someone has just taken them off my hands for the day. Oh, what a beautiful morning!

The Recology Store

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Open Hours: Monday-Saturday: 10:00 AM-6:00 PM Sunday: 12:00 PM-5:00 PM

SHOP

The Recology Store offers a wide variety of products that support a zero-waste lifestyle. We are committed to offering goods that are designed to reduce your waste by replacing single-use items with reusable ones or providing education on sustainability（可持续性）.

Whether you're looking for gifts, housewares, decorations or other products, the Recology Store is worth considering!

RECYCLE

In keeping with our goal to minimize materials sent to landfills（垃圾填埋场）, The Recology Store accepts hard-to-recycle materials that cannot be put into recycling carts. These special items include CFL light bulbs, household batteries, textiles, hard-cover books (except soft-cover books), small electronics and bicycles.

Non-customers may also drop off at the Recology Store for a minimal fee depending on the material. Click here to see our list for an overview of fees or call our store for more details.

LEARN

The Recology Store is staffed by a team of recycling experts who are available to provide in-person Customer Service support for our customers. Not sure which materials are supposed to go in the recycling or organics carts? Have an item that you think could be recycled or reused but you're not sure what to do with it? Looking for ways to reduce your waste in your daily life but don't know how to get started? The staff at The Recology Store can help you with all of these questions and more.

Saving the Daisies

Taylor aged 14 opened her sleepy eyes and looked out the window below. "NO!" she cried, now fully awake. Buttermilk the cow was in Mama's daisy（雏菊） garden. 

"I must have forgotten to close the gate last night, " Taylor thought as she pulled a sweatshirt over her head. Mama was planning to sell the daisies at the fair next week. But Buttermilk was eating the flowers. Taylor hurried outside and grabbed a rope. 

"Why can't you stay in the field?" she called to Buttermilk as she headed across the yard to the daisy garden. Buttermilk stood biting the tender flowers. 

"When I grow up, I'll be an artist and paint pictures all day, " Taylor thought. "I'll not own a cow. Too much trouble. " Taylor was fond of painting since the day she had memory. She would like to help with family but she loved seeing birds and flowers alive under her brush more. 

Just as Taylor was about to throw the rope onto Buttermilk's collar, the family dog barked. Buttermilk couldn't stand it and took off, tearing through the daisies. It finally ran through the open gate and into the field outside. "Thank goodness!" Taylor said as she closed the gate and secured the lock. But as she turned to look at the flower garden, most of the daisies were either eaten or left in pieces. 

Mama and Dad came out of the house. "What's going on?" Mama asked. She looked sadly at her garden. "I forgot to close the gate, "Taylor said. "I'm so sorry. ""I know you are. "Mama sighed and gave Taylor a hug. 

Taylor's heart was heavy as she went back into the house. Mama had prepared much for the fair but now half of her efforts were in vain. Taylor decided to think of a way to make it up to her mother. The problem tasked Taylor's mind. Could she plant other flowers in a week? Not enough time. Could she make use of the daisies in pieces? Not enough magic. Taylor found no way out. 

注意：1. 续写词数应为150左右；2. 请按如下格式在答题卡的相应位置作答。

Suddenly, Taylor noticed a daisy painting in the house and an idea jumped in. 

……

A week later, when her parents were loading the car, Taylor brought her paintings downstairs.

注意：1. 写作词数应为80左右；2. 短文的题目和首句已为你写好。

Students' Time Spent on Physical Exercise Weekly

Nowadays, many students are aware of the significance of physical exercise, although the time they spend on it varies. 

Xi'an, capital city of Shaanxi, served as the capital of 13 dynasties in Chinese history, which in total （last）about 1, 100 years. Consequently, the ancient history of Shaanxi is to some degree the ancient history of China. Shaanxi History Museum considers  a duty to be a showcase of Chinese ancient civilization. 

People call Shaanxi History Museum "Bright Pearl in Ancient Capital and Precious Treasure of China", for it is an art palace （full） showing Shaanxi history and culture as well as Chinese ancient civilization. Its architectural buildings and exhibits have made it famous as a first-class museum in China  it was opened to the public in 1991. It covers  total area of 65, 000 square meters. 

The basic halls in the museum are divided into three exhibition halls  

2, 000 cultural remains to display the history of ancient times in chronological （编年的） order. The first exhibition hall （locate）on the ground floor while the other two are on the second floor. 

While （design）the buildings in Shaanxi History Museum, the great designer used （tradition） palace construction of Tang Dynasty for reference. Adopting symmetry axis （轴对称） layout with main and supporting buildings in order, the complex （architecture）show the unique presence of Tang Dynasty. 

Harry Burleigh headed into the woods for a camping trip with his fishing equipment. A few days later, his wife Stacy grew 1  when he didn't come home as planned. 

Stacy called the 2  to report her husband's missing. Search and rescue teams 3  began their work and went on for days, but there was no 4  of Harry anywhere. Everyone was worried -the temperatures were quite low some nights, and it had even snowed. 

On May 15, the rescuers finally caught a break when they 5  a shelter and his fishing equipment. They 6  support from over 16 rescue organizations, and they explored every possible 7  but with no luck. Therefore, the rescuers 8  him a lighter and a note telling him to make a 9  and they would be back. Two days later, a team found another 10 , but this time, Harry was nearby and heard his name called! It turned out he was 11  along the path with minor pain. 

12 , the crew radioed for a helicopter to take him to the hospital for a complete evaluation after spending 17 long days out. 

"This was the 13  we all have been looking for in this case, " a rescuer said. "It is our 14  search and rescue teams and the partnerships we have with other teams that helped 15  Mr. Burleigh and his family. "

For the past two months, Mandy Chen, a second-year student at Beijing University of Technology, has been posting photos of herself to Taobao, posing with a reusable cup, climbing stairs and switching off lights.  Taobao's Al algorithm （算法） calculates that Chen's use of a reusable cup reduced 15. 7 grams of carbon emissions （排放）, while her choice to take the stairs instead of the lift resulted in a reduction of 19.5 grams. 

After seven days of posting her photos, Chen exchanged the points for a dozen of biodegradable rubbish bags from Taobao. Everyone can get an endless supply of free trash bags if they keep going, according to Chen. 

Chen uses Carbon88, a platform launched last August by Alibaba Group Holding, to help the more than 800 million users on Taobao adopt a sustainable lifestyle. The platform rewards users for over 70 low-carbon behaviours.  It also recommends products that it considers environmentally sustainable, and gives users points for buying them. 

 "I didn't know that my actions could produce such carbon reduction, " Chen said, "Now I feel good for what I'm doing to make this world a tiny bit better. We as a part of society can call for more systemic changes. "

A. It aims to encourage them to reduce their carbon footprint. 

B. And her efforts to save electricity prevented 65.50 grams. 

C. It's a valuable addition to current carbon-reduction policies. 

D. Carbon88 has helped increase Chen's environmental awareness. 

E. Within minutes, she receives a dozen points from the app as a reward. 

F. They range from taking public transport to shopping of second-hand items. 

G. She is now saving points for something better, like snacks and water bottles.