I lived in a big city. It's noisy arid dirty and I got very tired. At the weekends I like to leave the city and get some fresh air and a good rest. A few weekends ago I decided to see my parents. I was really looking forward to it.

    My parents live a long way away. I went to see them with James, a friend, and we drove down on Friday night. In the middle of the trip it began to rain. The roads became very wet and it was difficult to drive. We arrived home just after midnight, feeling tired. The next morning it was still raining. James took his car to the local garage which was very good.

In the afternoon the weather became better. We wanted to go for a drive. My parents lent us their car. That was no good. Their car didn't work! We rang the garage. "Oh, no." they said, "your car won't be ready until tomorrow." So it wasn't possible to go for a drive. We decided to play a word game. When we didn't agree about a word we looked for a dictionary. It wasn't there. Suddenly my mother remembered. "I lent it to your sister. She took it with her when she left." The word game wasn't any good without a dictionary.

    On Sunday my mother dropped a suitcase on her foot and wig had to hire a taxi to take her to hospital. When James and I drove back we got stuck in a traffic jam (交通阻塞). Next time I want to have a rest. I'll stay in the city!

University Room Regulations

Approved and Prohibited Items

    The following items are approved for use in residential (住宿的) rooms: electric blankets, hair dryers, personal computers, radios, televisions and DVD players. Items that are not allowed in student rooms include: candles, ceiling fans, fireworks, waterbeds, sun lamps and wireless routers. Please note that any prohibited items will be taken away by the Office of Residence Life.

Access to Residential Rooms

    Students are provided with a combination (组合密码) for their room door locks upon check-in. Do not share your room door lock combination with anyone. The Office of Residence Life may change the door lock combination at any time at the expense of the resident if it is found that the student has shared the combination with others. The fee is $25 to change a room combination.

Cooking Policy

    Students living in buildings that have kitchens are only permitted to cook in the kitchen. Students must clean up after cooking. This is not the responsibility of housekeeping staff. Kitchens that are not kept clean may be closed for use. With the exception of using a small microwave oven (微波炉) to heat food, students are not permitted to cook in their rooms.

Pet Policy

    No pets except fish are permitted in student rooms. Students who are found with pets, whether visiting or owned by the student, are subject to an initial fine of $100 and a continuing fine of $50 a day per pet. Students receive written notice when the fine goes into effect. If, one week from the date of written notice, the pet is not removed, the student is referred to the Student Court.

Quiet Hours

    Residential buildings must maintain an atmosphere that supports the academic mission of the University. Minimum quiet hours in all campus residences are 11:00 pm to 8:00 am Sunday through Thursday. Quiet hours on Friday and Saturday nights are 1:00 am to 8:00 am. Students who violate quiet hours are subject to a fine of $25.

    Some people shy away from traveling alone while a few welcome it. So, what is it that makes traveling alone an attractive choice?

    First of all, the travel plan and all the decisions you make are yours alone. You don't need to worry about any other person or group. In other words, there are no arguments. Actually, you can be completely selfish.

    Traveling alone is also a great confidence builder. Yes, at times it can feel a bit lonely, but that is just one of many problems you will have to solve yourself, along with making your own preparations and setting your own goals.

    Besides, have you noticed that when you're on your own, people are more willing to start a conversation with you? Interestingly, people tend to keep a distance from couples and groups. However, the lone (独自的) traveler looks ready to connect with their fellow human beings and more likely to get into pleasant conversation about their trips.

    Here are two more exciting reasons why you should consider traveling alone. You will find you learn the language faster when you don't have someone else talking to you in your own language all the time. You are forced to communicate in the foreign language when you travel alone in a country that doesn't speak your native language. In addition, when you're on your own, you're free to meet someone who might turn out to be very important in your life.

    Of course, there may be things stopping you: You fear the unknown, or you have friends who may be upset by your decision to take off by yourself. You will have to make them believe the value of traveling done and allay any fears they might have, but with the technology at our fingertips, you can include them in the adventure.

Plastic-Eating Worms

    Humans produce more than 300 million tons of plastic every year. Almost half of that winds up in landfills(垃圾填埋场)，and up to 12 million tons pollute the oceans. So far there is no effective way to get rid of it, but a new study suggests an answer may lie in the stomachs of some hungry worms.

    Researchers in Spain and England recently found that the worms of the greater wax moth can break down polyethylene, which accounts for 40% of plastics. The team left 100 wax worms on a commercial polyethylene shopping bag for 12 hours, and the worms consumed and broke down about 92 milligrams, or almost 3% of it. To confirm that the worms' chewing alone was not responsible for the polyethylene breakdown, the researchers made some worms into paste(糊状物) and applied it to plastic films. 14 hours later the films had lost 13% of their mass--apparently broken down by enzymes(酶)from the worms' stomachs. Their findings were published in Current Biology in 2017.

    Federica Bertocchini, co-author of the study, says the worms' ability to break down their everyday food-beeswax--also allows them to break down plastic "Wax is a complex mixture, but the basic bond in polyethylene, the carbon-carbon bond, is there as well, "she explains. "The wax worm evolved a method or system to break this bond. "

    Jennifer Debruyn, a microbiologist at the University of Tennessee, who was not involved in the study, says it is not surprising that such worms can break down polyethylene. But compared with previous studies, she finds the speed of breaking down in this one exciting. The next step, DeBruyn says, will be to identify the cause of the breakdown. Is it an enzyme produced by the worm itself or by its gut microbes(肠道微生物)?

    Bertocchini agrees and hopes her team's findings might one day help employ the enzyme to break down plastics in landfills. But she expects using the chemical in some kind of industrial process-not simply "millions of worms thrown on top of the plastic."

    A day in the life of 18­year­old David Lanster is full of typical teenage stuff: school, baseball practice and homework. And then he starts cooking. "Some nights I'm up until 1: 00 a. m. making pies, or even later if we're cooking beef," said the student at Ransom Everglades High School in Florida, US.

    For the past year, Lanster and Kelly Moran, his classmate, have been hosting fancy dinner parties at Lanster's parents' home. Their meals have 17 courses and are all made by themselves. Their guests used to give them gifts to thank them until the pair decided to do something nice for charity. "We got some really great Miami Heat tickets, a nice watch, and many kitchen gadgets (小器具)," Lanster said. "But we wanted to make this something positive for people other than us."

    Lanster and Moran focus on Common Threads, a charity that aims to teach kids in poor communities to cook and make healthy eating choices. The young cooks ask their guests to give however much they want as payment for their meals. It all goes to Common Threads because Lanster's parents cover their food costs. After their last 12­person event, Lanster and Moran gave $1,600 to the charity.

    Now, they're taking their show out of the kitchen and on the road. They have started to organize private dinner parties with a similar model: the host pays for the ingredients, and the guests make a donation to a charity of their choice.

    Without formal training, Lanster said he had been interested in cooking since he helped his mom in the kitchen when he was very young. He learned how to cook by reading cookbooks and watching TV programs. Outside the kitchen, the two are busy preparing their college applications. Neither of them is sure what they will do in the future, but they've promised their parents that they will leave professional cooking alone until they finish school.

    One of the hardest parts of planning a trip to Hawaii is deciding which of the major Hawaiian Islands you should visit. Each has its own personality and offers unique adventures and activities.

    Oahu

    Oahu has a bit of everything, packed in 597 square miles. You can hike into thick rainforests, and when you need a break, relax on powdery white sand beaches and stay at luxury resorts.

    Oahu has become a great destination for families. The urban core (核心) of Honolulu and Waikiki has historic sites, museums and bustling (熙熙攘攘的) and nightlife scenes. The island lives up to its nickname of the Gathering Place.

    Maui

    Maui is a great island for honeymooners. The Valley Isle has top-class resorts and golf courses, adjacent (毗邻) to some of the state's best beaches. A large dormant (休眠) volcano in east Maui at sunrise or sunset is a serene experience, as well as driving the Road to Hana, famed for its thundering waterfalls.

    Kauai

    Kauai is the oldest of the main Hawaiian Islands. The island gets a lot of rain, but that's what makes it so lively, you'll come across flowers and plants you've never seen before. For some of the best views on the island, visit Waimea Canyon, known as the Grand Canyon of the Pacific, and the Na Pali coast, boasting some of the world's highest sea cliffs.

    Big Island

    The Big Island is the only Hawaiian island still growing. Witness the power of Pele, the Hawaiian goddess of fire, wind, lightning and volcanoes with a visit to the Hawaii Volcanoes National Park. It's one of the few spots in the world where you can see lava flow. In fact, the Big Island has 10 of the world's sub-climate zones, from the snow-covered mountain of Mauna Kea, green forests of Waipio Valley to stretches of barren desert.