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Scientists at the University of Liverpool (UL) have developed a robot that can run experiments on its own. It's not new for labs to use robots. But earlier robots usually stayed in one place and (do) one job over and over again. The UL robot is different. It's able to (easy) move around in the same kind of space as humans do. It uses a special system called LIDAR to guide (it). With one long arm which can turn in almost any direction, the robot can use several different kinds of lab equipment and carry out variety of tasks.

The scientists say it took a lot of work  (program) the robot so that it could do things without  (make) mistakes. Once the programming is done, though, the robot makes  (few) mistakes than a human.

To test their robot, the scientists gave it a task: find a material  was able to produce hydrogen (氢) from water. The robot was programmed to understand the basic methods for the experiment, but it  (give) 10 different things it could change which could influence the results. That meant that the robot could choose from around 98 million different mini-experiments. Over the next 8 days, the robot ran 688 experiments, always choosing its next experiment based  the results of the last one.

Miss Patty is a force of nature. Years ago, Miss Patty 1  that many students that rode her bus never had hats on cold days. Being a caring woman, she 2  to do something about it. 

Patty Reitz, 3  known to students as Miss Patty, has left friendship and warmth with the students of Clarence Central School District. Over her 4 , she has crocheted (用钩针编织) a(an) 5  7, 083 hats for the students and the school. 

Reitz's 6 of crocheting began in 2005 when she was 7 for her mother in the hospital and needed something to keep herself occupied（忙碌）. "I needed something to do. "she 8 . Later, she took up the craft on her bus while waiting for the students to 9 .

"She 10 her students. Any student that has been on Miss Patty's bus gets a hat, and they also 11 a friend. Miss Patty is one of their 12 . " said third-grade teacher, Deborah Bosworth.

"I'm going to keep doing it until I can't do it anymore." she said. Miss Patty's act of kindness and 13 is inspiring. She is a great example to all of us that we can 14 a difference in the lives of others, even if it's something as 15 as making hats.

My husband and I just spent a week in Paris.  So the first thing we did was rent a fantastically expensive sixth-floor apartment the size of a cupboard. It was so tiny that we had to leave our suitcases in the hallway.

The place wasn't entirely authentic, though. Unlike a normal Parisian apartment, the plumbing （水管）worked.  Our building even had a tiny lift with a female voice that said, "Ouverture des portes, " in perfect French. That is the only French phrase I mastered, and it's a shame l don't have much use for it.

Parisians are different from you and me. They never look lazy or untidy. As someone noted in this paper a couple of weeks ago, they eat great food and never gain weight.  French strawberries do not taste like cardboard. Instead, they explode in your mouth like little flavor bombs.

  On our first morning in Paris, I went around the corner to the food market to pick up some groceries. I bought a handful of perfectly ripe small strawberries and a little sweet melon. My husband and I agreed they were the best fruit we had ever eaten. But they cost ＄18!

In France, quality of life is much more important than efficiency （效率）. You can tell this by café life. French cafés are always crowded.  When do these people work? The French take their 35-hour workweek seriously—so seriously that some labor unions recently struck a deal with a group of companies limiting the number of hours that independent contractors can be on call.

A.Not all the customers are tourists.

B.The quality of life in France is equally excellent.

C.There was a nice kitchen and a comfortable bed.

D.The amazing food is mainly consumed by local farmers.

E.That's not the only reason the French eat less than we do.

F.Our aim was to see if we could live, in some way, like real Parisians.

G.The food is so delicious that you don't need much of it to make you happy.

One way to prevent anxiety from getting out of control is to recognize its benefits. It is a mistake to think that we'd make better decisions if only we keep our feelings under control. Instead, a mix of feelings like anxiety and logical thinking leads to sound decision-making. It's true that there is plenty of research showing that higher levels of anxiety can make us more likely to avoid risks in our decision-making. There is also evidence that anxiety can increase the attention you pay to relevant information.

Recent studies have shown that people who are anxious about their relationship (for example, they fear to be abandoned) tend to be better at recognizing people who tell lies and are more likely to raise the alarm when danger is present.

In the real world though, it's worth realizing that feeling anxious once in a while is extremely common. It communicates to others that you care, and what's more, it's probably a sign that you are intelligent. At least two published studies have identified that people who score higher on measures of anxiety also tend to perform better on intelligence tests. This seems reasonable: if you're a thinker, you are sure to be always thinking about the future and imagine possible plots, including bad ones.

The important thing, if you are a worrywart, is not to let your fear destroy your dreams. And don't bury your head in the sand Instead, act on your fears—do the research as well as preparation, so rather than walking blindly into that which you fear, you meet the challenge in full readiness. 

When anxiety beats you, or casts a shadow over your life, this is a serious problem. No one is denying that. But like everyday anxiety of this kind that you feel before a presentation or an interview, you needn't see it as your enemy. Anxiety is an important feeling, developed through evolution. As for people who are fairly anxious by nature, there is reason for cheer, too. Your nerves are a sign of your watchfulness.

Listen to them and act on them. Then you can turn your nervousness you're your advantage. 

By the end of the century the world's oceans will be bluer and greener thanks to a warming climate, according to a new study.

At the heart of the phenomenon lie tiny microorganisms in the ocean called phytoplankton(浮游植物). Because of the way light reflects off the organisms, these phytoplankton create colorful patterns at the ocean surface. Ocean color varies from green to blue, depending on the type and concentration of phytoplankton. Climate change will fuel the growth of phytoplankton in some areas, while reducing it in other spots, leading to changes in the ocean's appearance.

Phytoplankton live at the ocean surface, where they pull carbon dioxide into the ocean while giving off oxygen. When these organisms die, they bury carbon in the deep ocean, an important process that helps to regulate(调控)the global climate. But phytoplankton are vulnerable to the ocean's warming trend. Warming changes key characteristics of the ocean and can affect phytoplankton growth, since they need not only sunlight and carbon dioxide to grow, but also nutrients.

Stephanie Dutkiewicz at MIT built a climate model that projects changes to the oceans throughout the century. In a world that warms up by 3℃, multiple changes to the color of the oceans would occur. The model predicts that currently blue areas with little phytoplankton could become even bluer. But in some waters, such as those of the Arctic, a warming will make conditions more suitable for phytoplankton, and these areas will turn greener. Just as importantly, the type of phytoplankton is changing. As the base of the food web, if certain kinds begin to disappear from the ocean, it will change the types of fish that will survive, which could affect the food chain.

Whatever color changes the ocean experiences in the coming future will probably be too gradual and unnoticeable, but they could mean significant changes. "It'll be a while before we can statistically show that the changes are happening," Dutkiewicz said, "but the change in the color of the ocean will be one of the early warning signals that we really have changed our planet."

My name is Alice. Early last year, I was troubled by an anxiety that crippled (削弱) my ability to do anything. I felt like a storm cloud hung over me. For almost a year I struggled on, constantly staring at this wall that faced me. My perfectionist tendencies were the main root of this: I wanted to be perfect at whatever I did, which obviously in life is not possible, but it consumed me.

One day, I attended a presentation (报告) by wildlife conservationist Grant Brown at my high school. His presentation not only awed (使惊叹) and inspired me, but also helped create an inner desire to make a difference in the world. I joined a pre-presentation dinner with him and that smaller setting allowed me to slowly build up my courage to speak one-on-one with him—an idea that had seemed impossible. This contact was where my story began.

A month later, Brown invited me to attend the World Youth Wildlife Conference. Looking back, I now see that this would be the first in a series of timely opportunities that my old self would have let pass, but that this new and more confident Alice enthusiastically seized. Shortly after I received his invitation, applications to join the Youth for Nature and the Youth for Planet groups were sent around through my high school. I decided to commit to completing the applications, and soon I was a part of a growing global team of young people working to protect nature. Each of these new steps continued to grow my confidence.

I am writing this just six months since my journey began and I've realized that my biggest obstacle (障碍) this whole time was myself. It was that voice in the back of my head telling me that one phrase that has stopped so many people from reaching their potential: I can't. They say good things come to those who wait; I say: grab every opportunity with everything you have and be impatient. After all, nature does not require our patience, but our action.

Canada is a vast and diverse country that offers plenty of incredible tourist destinations. From wonderful natural landscapes to lively cities, Canada has something for every traveler. Here's a guide to some of Canada's top tourist destinations. 

Banff National Park, Alberta

Located in the Canadian Rockies, Banff National Park is a breathtaking destination known for its turquoise (绿松石)lakes，snow-covered mountains, and plentiful wildlife. Explore the landmark-Lake Louise, hike to amazing viewpoints, and spend time in the natural hot springs. 

Niagara Falls, Ontario

Niagara Falls is one of the world's most famous natural attractions. Witness the steep power and beauty of the grand falls from various viewpoints. Take a boat tour, visit the Butterfly Conservatory, or enjoy the lively atmosphere of Clifton Hill. 

Toronto, Ontario

As Canada's largest city,Toronto offers an impressive experience. Discover the famous CN Tower, explore the busy neighborhoods of Kensington Market and Distillery District, and visit world-class museums such as the Royal Ontario Museum and Art Gallery of Ontario.

 Whistler, British Columbia

Whistler is a well-known winter sports destination，famous for its world-class ski slopes and winter activities. In summer, enjoy hiking, mountain biking, and golfing amid the impressive mountain scenery.

注意：1. 词数100左右；2. 可适当增加细节。

Dear Tom，

Yours,

Li Hua

假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。

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。

I used to feel sleepy in class and I couldn't focus to my lessons. As a result, not only did I do badly in our studies, but also my health went from bad to worse, for that I was often scolded by my parents. I decide to change my situation. Half a year ago, followed my teacher's advice, I began to join some sports activities. I now play the basketball for 45 minutes every day. My health has improved, but at the same time, I've made lots of progresses in my studies. Physical exercise has changed me into an entire new person.

Table tennis started as an after-dinner game, but is now a fast, high-tech sport. It also has  most players of any sport in the world.

 is believed that upper-class Victorians in England invented table tennis in the 1880s as an after-dinner alternative (可能的选择) to tennis,  (use) whatever they could find as equipment. A line of books would often be the net, and sometimes a cigarette box cover would be a racket.

In 1926, at a meeting  (hold) in Berlin, the International Table Tennis Federation was formed. The first World Championships were held in London in the same year, but the sport had to wait a long time before it was given a chance  (make) its first appearance at the 1988 Seoul Olympic Games.

The sport  (progress) greatly since it was first invented. Nowadays, players use  (special) developed rackets and a lightweight, hollow (空心的) ball. Thanks to their high-tech rackets, they can now enjoy the  (magic) feeling of hitting the ball at over 150 kilometres per hour!

Over the years, table tennis has developed into a worldwide sport. There are perhaps 40 million competitive table tennis players and countless millions  play less seriously. Hopefully, table tennis  (play) by more people all over the world in the future.

Failing Successfully

Two years ago I took part in a speech competition and delivered a memorized speech. It was a hard time for me when the judge 1  the winners. At last, the moment of truth came. I got the worst.

After not being placed in the competition, I really wanted to 2  again. I realized that finding the right topic was the most important part of the whole 3 . It needs to be motivational and inspirational to the 4 . So I reworked my speech for the following year, 5  a different topic and spending many hours before the computer and in libraries doing research. Then I worked 6  the speech, line by line, word by word, making it 7  better.

The next year I participated in the competition again. I gave my 8 in two parts, one was about my own experience and the other was about the feelings that people usually have when giving a speech—how 9 it is, standing on a stage all alone, with everyone sitting and watching them. My speech 10 down well and I was hoping to do that a little bit better. 11 , my wish didn't come true. The competition was so fierce and again I wasn't 12 .

I was deeply disappointed, since I couldn't accept the fact that I had 13 twice in something that I had worked so hard on. However, I knew that losing is 14 and part of life. One of the judges said to me that my speech was quite good, 15 it needed to be better if I wanted to go any further. He advised me to struggle to 16 something like some of the empty gestures. He said that I would surely succeed someday.

While I didn't earn 17 as a result of the competition I did gain a new viewpoint. I discovered that I could fail successfully. I think I'll 18 to work hard and enter the next competition. Now, whenever I'm faced with a defeat, I 19 myself of what a famous person said, "The path was worn and slippery. My foot slipped from under me, knocking the other out of the way, but I recovered and said to myself that it's a slip and not a 20 ."

Kids' health: Four steps for fighting stress

Everybody gets stressed time to time. Try taking these four steps the next time you are stressed:

⑴ When you need help, reach out to the people who care about you. Talk to a trusted adult, such as a parent or other relatives. And don't forget about your friends. They might have had similar problems, such as dealing with a test, or the death of a beloved pet.

⑵Sometimes when kids are stressed and upset they take it out on themselves. Oh, dear, that's not good idea. Remember that there are always people to help you. Don't take it out on yourself. Ask for a helping hand to get you through the tough situation.

⑶ After you're calm and you have support from adults and friends, it's time to get down to business. You need to figure out what the problem is. Even if you can't solve it all, you can solve a piece of it.

⑷Be positive. Most stress is temporary (暂时的). Remember stress does go away, especially when you figure out the problem and start working on solving it. These steps aren't magic, but they do work. And if you can stay positive as you make your way through a tough time, you'll help yourself feel better even faster.

A. Don't take it out on yourself.

B. Notice your friends' feelings and find a way to help them.

C. Different people feel stress in different ways.

D. Ah, it feels so good when the stress is gone.

E. Try to solve the problem.

F. Get support.

G. Then, find a way to calm down.

Slowly but surely, we're moving closer and closer to 5G world. From smart-home security to self-driving cars, all the internet-connected devices in your life will be able to talk to each other at lightning-fast speeds with reduced delay, Objectively speaking, the fastest 4G download speeds in the U. S. top out at an average of 19.42 Mbps. But by comparison 5G promises gigabit (千兆) speeds.

"5G is one of those signs, along with artificial intelligence, of this coming data age," said Steve Koenig, senior director of market research for the Consumer Technology Association. "The self-driving vehicle is a great emblem of this data age, and that is to say, it is a sign of time, because with one single task, driving, you have massive amounts of data coming from the vehicle itself, and a variety of sensors are collecting a lot of information to model its environment as it moves. It's pulling in data from other vehicles about road conditions down the lane. It could be weather information, but also connected infrastructure (基础设施) construction. There's lots of data behind that task, which is why we need high speed.

Augmented reality glasses (AR实境眼镜) and virtual headset (虚拟现实耳机) haven't yet broken the mainstream, but tech companies are joyfully betting that these devices will eventually replace our smartphones. With 5G, that could actually happen. This is notable because companies such as Apple are reportedly developing AR glasses to assist — or perhaps even replace — smartphones.

I once thought that my teenager years were going to be the worst years of my life, because when I was 12 years old, I was a total outsider, was often bullied (欺凌) at school. I felt completely alone in my small town.

But by starting to do volunteer work when I was 14, I turned my problem into a passion for helping others. The opportunity to practice kindness made me feel like my life had a greater purpose. The more positive energy I shared, the more kindness and appreciation I received. I realized that the real meaning of my life would be to reach out to people, specifically teenagers, and help them feel less alone.

Books were my true friends back then. I was so thankful that the authors wrote those books. The kindness they offered me with their books saved my life. One of my biggest dreams was to become an author so I could write books that would help other teenagers the way those books helped me.

Kindness saved me when I needed help the most. Even small acts of kindness can change someone's life. You never know what someone else is going through. But by practicing daily kindness, you become an architect of positive change.

Skiing has always been a big part of Mikaela Shiffrin's life. Her dad ski raced all through college and her mom raced and coached skiing. The Shiffrins taught Mikaela and her brother, Taylor, to ski at a very young age. At two and a half years old, Mikaela made her first ski run down her driveway on plastic skis.

Mikaela loved skiing. From ages 8 to 11, she did hundreds of training runs on small hills to learn the skills of slalom skiing (障碍滑雪). When Mikaela was 11, she began to learn at the Burke Mountain Academy, a Vermont boarding school for skiers. She took classes, studied, and practiced her skiing. According to Burke Mountain Academy headmaster Kirk Dwyer, "What separated Mikaela from others was the degree of her commitment (投入) to be the best. Mikaela practiced more than anyone and believed in herself then and now." At age 14, Mikaela began her international career when she raced in the world championships for 13- and 14-year-olds. And she won!

By the time she was 17, she had already won her first World Cup race. "Living away from home four and five months at a time can be difficult," Mikaela says. "But it can also be exciting. I'm getting to see the world." When Mikaela began ski racing in Europe, her mother, Eileen, stayed with her. She worked as her high-school teacher while they were on the road. "She has always been a super-hard worker," says Eileen.

For Mikaela, working hard is a full-time job. Even her off-season is work time. "If you want something, just try your best," she says. At the 2014 Winter Olympic Games in Sochi, Russia, 18-year-old Mikaela Shiffrin became the youngest slalom skier ever to win an Olympic gold medal.

Lake Forest High School Clubs

⒈Environmental Club

Club members are provided opportunities to realize their goals of environmental service. The majority of projects are student-initiated. Last year's activities included: the LFHS Courtyard Garden upkeep, Bike to School Day with free cocoa and snacks, an "eat local" 100mile dinner, recycling solutions for LFHS, beach cleanup through the Great Lakes Alliance, and Earth Week celebrations.

Meetings: First Friday of the month in Room 5 at 7：00 a.m.

Advisor: Ms Mary Beth Nawor, mnawor@lfschools.net

⒉Peer Tutoring

Students volunteer to help fellow students in improving their study and organizational skills. Students tutor LFHS and middle school students on an individually scheduled basis. LFHS tutors must have proficiency (精通) in the academic area in which they wish to tutor, but middle school tutors only need general academic proficiency.

Meetings: All tutoring is done on an individually scheduled basis.

Advisor: Ms Kathy O'Hara, kohara@lfschools.net

⒊Young Idea

Young Idea is LFHS's art and literary magazine. Students of all ages who love writing and art are encouraged to become part of the staff of this award winning magazine. Young Idea encourages all students to submit art and literature works to the magazine, whether they are a part of the staff or not. From September to February, Young Idea meets on Thursdays after school in the Public Room to discuss the pieces that have been submitted to the magazine and provide feedback for the authors.

Meetings: See above explanation.

Advisor: Ms Debbie Zare, dzare@lfschools.net

⒋Scout Buddies

Scout Buddies is a friendship club which helps build friendship among individuals with and without disabilities. Club members participate in a variety of social activities both within the school and in the community. Activities include organizing holiday parties in the school, bowling, going to the movies, and eating out in local restaurants.

Meetings: Monthly meeting dates vary, but in Room 134.

Advisor: Ms Donna Lovitsch, dlovitsch@lfschools.net