Do you want to learn English better?If you do,the following classes might be suitable for you.

Junior Courses

    Our English courses for juniors arc good for all the young people who want to develop their English language skills by taking part in exciting cultural and social activities.We offer this course to groups at every LSI school year found.We accept individual（个人的）young learners in our schools in the UK,the USA and Canada in our summer and winter camps.

    Teaching methods and social activities in the junior course are specially designed to suit kids and teenagers.Our English for junior courses are a great way for learners to make friends with other teenagers from all over the world.LSI offers English language courses to suit all abilities and levels.

Evening Classes

    LSI offers general language classes and exam classes in the evening.Students can take evening classes at a number of different LSI schools around the world.LSI London Central has a special foreign language department which offers classes in over 40 languages.Evening language classes are taught in open groups at LSI school buildings.We also organize language training that can be arranged either in or outside the school at any time for individuals and closed groups.

    Our evening language courses are for everyone.We train business people who require language skills for specific purposes and those who expect to gain some basic survival skills for their holidays.We provide quality training for all students at all levels,whatever their purposes are.

    I think a close friend is someone you get on well with, who helps you when you have problems, who gives you advice, and who always has time for you. I didn't use to have many close friends when I was at school because I was very shy, but now I have several. They are all women. I think it's difficult to have a close friend of the opposite sex（异性）.

—Marie

    I think a close friend is someone who you've known for a long time, and who you still get on with. They have similar hobbies to you so you can do things together. I've got three close friends who I was at middle school with and we often go out together （without our parents of course）. We often go camping, play football, or walk outside in the open air.

—David

    I'm not sure how to answer the question because I don't really have any close friends. I know a lot of people but mainly through work, and the social occasions（场合） when we meet are business dinners, things like that. I think if you come from a really close family, friends are a bit unnecessary. I like spending my free time with my family.

—Richard

    For me close friends are the people you spend your free time with. I go out at weekends with a group of people, and they are all my close friends. They're also people who live near me. I don't think you can have close friends at a distance because you need to be able to see each other often. But I don't think you need to be doing the same things. I mean I'm at school but none of my friends are.

—Anna

    It was Sunday, so Dad and I were at the second-hand goods market, looking for tools, appliances(家用电器), and other things that needed cleaning. Some were broken; others, like silver cups, just needed to be cleaned and polished. It was 1974, and the Depression(经济大萧条) was very serious. Dad worked full-time at a factory, but the money wasn't enough. Dad had tried a second job for a while, but he found it was too hard on the family. One day, he had an excellent idea that set me on a lifelong course of making money to support myself. Standing beside a crowded table at the second-hand goods market, I looked over an ancient manual sewing machine. Someone had changed it to run on electric power. It was much older than Mom's machine, but it looked like it had quality and a long life built into it. "Dad!" I called. "This is a beauty!"

    Dad walked over, pulling a cart full of audio equipment, tools, worn-out appliances, and what appeared to be a block of dull kitchen knife." What have you got, Son?" I described what I saw and what I figured I could do to x the beauty up. Dad paid for my discovery, and we headed home.

    Every day after school I worked on the ancient machine, and every night Dad and I sharpened tools and knives, sanded off rust, polished metal, and replaced missing parts from various items. The next Saturday we headed off, as we did every weekend, to that same market, where we sold the treasures we'd purchased the week before—at a tidy profit. My antique beauty brought in more money than anything else, and Dad let me keep every penny.

    Dad's gone now, but I can never thank him enough. Even if we hadn't needed the extra money Dad and I brought in, I wouldn't have traded those weekends for all the picnics or Little League games in St. Louis—not in a million years.

The Young Scholars Program

    The University of Maryland's Young Scholars Program is a perfect summer camp for academically talented teenagers who want to earn college credits, pursue academic interests or discover college life at the University of Maryland. The program is challenging and rewarding. Students have the opportunity to show that they can be successful in a university environment.

    The Activities

    During three weeks of exploration, teens preview the university experience, study with students who share similar interests and communicate with the best teachers of the University of Maryland in a dynamic and challenging classroom environment. Students can have trips to nearby Washington, DC and enjoy movie nights and activities at the student union. Workshops and seminars featuring speakers in academic fields further enrich the learning experience.

    The Courses

    The Young Scholars Program offers college courses that are at the cutting edge of theory, thought and technology. Classes generally meet every day from Monday to Friday. The program is a great introduction to the University of Maryland, Participants can benefit from the University of Maryland's vast resources, including libraries, computers and instructional labs.

    The Rewards

    Upon program completion, teens will go home with better preparations for the college experience—both academically and socially. In addition, students earn three college credits that post to the University of Maryland transcript (成绩单).

    The Application

    The application process includes submission of the application, high school transcript and a letter of recommendation.

    Ages: 14-18

    Mailing address: The University of Maryland College Park

    For more information, call 3014057762.

    Plastics remain one of the most - used materials for making many things. Things made of plastics can be very strong and last a long time. Plastics are also much lighter than metal and can easily be formed into different shapes. Plastics can take hundreds of years to break down on their own. And very few kinds are highly recyclable.

    A team of researchers working at the US Department of Energy says it has created a kind of plastic that could lead to products that are 100 percent recyclable. It recently reported the discovery in a study in the journal Nature Chemistry.

    The researchers say the new material is a plastic polymer (聚合体)called polydiketoenamine, or PDK. The team reports the material can be broken down in parts at the molecular (分子的)level. It can then be built up again to form plastics of different shapes, textures and colors. The researchers say this process can be repeated over and over again—without the plastic material losing any performance or quality.

    "Most plastics were never made to be recycled," lead researcher Peter Christensen said in a statement. " But we have discovered a new way to assemble plastics that takes recycling into consideration from a molecular perspective. "

    Many plastics have different chemicals added to them to make them more useful and powerful. The problem is that these chemicals attach to the monomers (单体), which remain in plastics even after the material gets processed at a recycling plant. The research team reported that, with the newly discovered PDK material, the monomers could be recovered and separated from any chemical additives.

    Next, the researchers plan to develop PDK plastics "with a wide range of thermal and mechanical properties. These plastics could be used for many kinds of cloth, as well as things such as 3D printed materials and foams. In addition, the team is trying to include plant - based materials in the process.

My love for libraries blossomed when I joined the public library. From the age of 8 I was allowed to walk from my home to the downtown library, housed above the police station. Once the librarian gave me my first membership card, I could enjoy a range of books, which started with Little House in the Big Woods. I was addicted instantly, and this love of libraries and reading would change my life, allowing me to one day create a safe space for high-school kids, too.

By the time I was in high school, I could read the authors that we were studying in class, including Charles Dickens, Mark Twain and Emily Bronte. During the summer months, I got caught up in Gone with the Wind.

When I studied English literature at university, I thought it was time to build my own library. For the next 40 years, I continued to collect books. Until one day, I realized that all my books had become a part of the house, like wallpaper.

Toward the end of my teaching career, I became a teacher-librarian at my old high school, where I had first learned English literature. This position enabled me to regain my love and appreciation for libraries. I had a generous budget for my classes, so I searched for novels that would interest my teenage audience and hopefully spark a love of books. Fantasy, science-fiction, graphic novels -I bought almost any type of books that my students wanted to read. I bought sofas and comfortable chairs, turning the library into a safe public space, for everyone.

In doing so, I realized that the library isn't just a place to do research. They are, in fact, places that offer an opportunity to connect with the past, present and future. All that is required is a tiny bit of curiosity. Libraries are places that should be full of life. They help us adjust to the world, and their doors must be kept open to everyone for free!