When Luke went to university he thought he would be on a new journey in life and getting his own place. In the UK, it's common to fly the nest at a fairly young age. Many choose a flat-share; others make plans to get on the property ladder.

    But the current economic situation forced Luke back to his mum's house at the age of 27. And he's not alone: a quarter of young adults in the UK now live with their parents. The Office for National Statistics said more than 3.3 million adults between the ages of 20 and 34 were living with their parents in 2013.

    Lack of jobs and the high cost of renting accommodation made Luke change his plans. He's upset. "There's something very difficult about being an adult living in an environment where you're still a child," he says. "It limits me socially; sometimes I feel it limits me professionally."

    Indeed, many young people have no choice but to stay at "the hotel of Mum and Dad".

    Krissy had to return home after a year away and now lives in rather terrible conditions, sharing the family's three-bedroom house with her sisters. She says they end up getting on each other's nerves when it's time to use the bathroom in the morning.

    Of course, living with your parents is not unusual in some countries. Economic conditions, culture, or family traditions mean many young people stay at home until they get married. Even then, it can be too expensive to rent or buy a house and the married couples continue to live at one of their parents' homes.

    But some parents seem to enjoy having their kids back at home. Janice's daughters are part of what's being called "the boomerang generation". She says, "I get to share their lives with them, and I've got to know them all as adults. We have the sort of conversations that good friends do."

    So for some it's a win-win situation — spending time with your families, and saving money.

    If it really is what's on the inside that counts, then a lot of thin people might be in trouble.

    Some doctors now think that the internal(内部的) fat surrounding important organs like the heart or liver could be as dangerous as the external fat which can be noticed more easily.

    “Being thin doesn't surely mean you are not fat,” said Dr Jimmy Bell at Imperial College. Since 1994, Bell and his team have scanned nearly 800 people with MRI machines to create “fat maps” showing where people store fat.

    According to the result, people who keep their weight through diet rather than exercise are likely to have major deposits of internal fat, even if they are slim.

    Even people with normal Body Mass Index scores can have surprising levels of fat deposits inside. Of the women, as many as 45 percent of those with normal BMI scores (20 to 25) actually had too high levels of internal fat. Among men, the percentage was nearly 60 percent.

    According to Bell, people who are fat on the inside are actually on the edge of being fat. They eat too many fatty and sugary foods, but they are not eating enough to be fat. Scientists believe we naturally store fat around the belly first, but at some point, the body may start storing it elsewhere.

    Doctors are unsure about the exact dangers of internal fat, but some think it has something to do with heart disease and diabetes(糖尿病). They want to prove that internal fat damages the body's communication systems.

    The good news is that internal fat can be easily burned off through exercise or even by improving your diet. “If you want to be healthy, there is no shortcut. Exercise has to be an important part of your lifestyle.” Bell said.

    Astronomy (天文学) is the oldest science known to man. Thousands of years ago man looked at the stars and wondered about heavens(天堂). But the six planets that he could see with his eyes alone limited man.

    The Greeks studied astronomy over 2,000 years ago. They could see the size, color, and brightness of a star. They could see its place in the sky. They watched the stars move as the seasons changed. But the Greeks had no tools to help themselves study the heavens.

    Each new tool added to the field of astronomy helped man reach out into space. Until there were telescopes(望远镜), man did not know much about the moon. He did not know that the planet called Saturn(土星) had rings around it. His sight was so limited that he could not see all the planets. In the early 1700s, people thought there were only six planets. Pluto (冥王星), the last of the nine planets to be discovered was seen until 1930.

    Before the spectroscopes (分光镜), man didn't know what kind of gas was in the sun or other stars, without radio telescopes(射电望远镜), we did not know that radio noise came from far in space.

    Today, astronomy is a growing science. We have learned more in the past fifty years than in the whole history of astronomy.

    Qibao Ancient Village

    Qibao, located in the center of Minhang District, Shanghai, is a village with a history of one thousand years. In the village, wine and tea are served on old-fashioned square tables together with long benches, long-mouth copper pots and flat-end chopstick used. The most famous snacks in old Shanghai are square pastry, rice wine and steamed salted pork in wine.

    Telephone: 021-21087225

    Entrance Ticket: 45 yuan per all-in-one ticket (preferable price of 30 yuan is available now), covering almost all tourist attractions inside the village.

Jinshan Village of Farmer Painting

    Villagers skillfully make good use of folk arts such as printing and dyeing, embroidery (刺绣), wood carving. They take the various folk customs and the busy scenes of labor of villagers in the lower Changjiang valley as the theme of paintings and create farmer paintings in a simple style.

    Telephone: 021-57355555

    Entrance Ticket: 30 yuan/person

    Merry Countryside Tour in Zhonghua Village

    The village provides tourists with accommodations, tours, chess, cards, fitness and entertainment through renting out separate farmhouse and sells tourist products and agricultural by-products related to the merry countryside tour.

    Telephone: 021-57395433

    Entrance Ticket: Free

    Pudong Lingkong Agric Gardening

    It is one of Shanghai countryside tour scenic spots, which features art of teapots, crop plantation and export. The Geological Science Popularization Hall stores up tens of thousands of rare stones collected all over the world.

    Telephone: 021-33935557

    Entrance Ticket: 50 yuan /person

    I remember little of the journey which started so early in the morning. I only know that the day seemed extremely long, and that we appeared to travel over hundreds of miles. Calmed by the sound of the coach wheels, I fell asleep. But I had not slept long when the coach stopped, the door was opened, and I saw a servant standing there.

    "Is there a little girl called Jane Eyre here?" she asked. I answered "Yes," and was then lifted out. My trunk handed down, the coach instantly drove away. I looked about me. I could see a house with many windows. There were lights burning in some of them. We went up a wide pebbly path, splashing wet, and were admitted at a door. Then the servant led me through a passage into a room where she left me. I stood and warmed my frozen fingers at the fire and looked around. There was no candle, but the light from the fire showed papered walls, a carpet, curtains and gleaming furniture. Then the door opened, and a tall lady with dark hair, dark eyes entered followed by another who looked younger. "The child is very young to be sent alone," said she, putting her candle down on the table. She looked at me for a minute or two and then added, "She had better go to bed soon; she looks tired."

    Led by the younger lady, Miss Miller, through passage after passage, we came, at last, to a long, wide room filled with the hum of many voices. There were many tables, and seated all round on benches were a large number of girls aged from nine to twenty. Seen in the dim light of the candles, their number appeared above eighty. Each was dressed in a brown old-fashioned dress of cheap material. It was their hour of study.

    Miss Miller signed to me to sit on a bench near the door, then walking up to the top of the long room she cried out "Monitors, collect the lesson-books and put them away!"

    Four tall girls arose and went round, gathered the books and removed them. Miss Miller again ordered, "Monitors, fetch the supper-trays!" The tall girls went out and returned presently, each bearing a tray. Some food and water was in the middle of each tray. The food was handed round and everyone drank from the same mug. When it came to my turn, I drank too, for I was thirsty, but I did not touch the food. From there I was taken to my hard bed where I thankfully fell asleep immediately.

    Portland, Oregon, just got another reason to call itself "Bike City USA".

UPS has started a trial program to deliver packages there using an electric-powered bicycle. The environmentally friendly Cargo Cruiser is a tricycle with a large brown box on the back. Like any electronic bike, the Cargo Cruiser can be powered by foot, motor, or a combination of both.

    UPS began testing e-Bikes in Hamburg, Germany, in 2012, but this is the first time the technology has been used for package deliveries in the United States.

The e-Bikes support UPS's efforts to reduce its carbon emissions, ease urban noise levels, and improve air quality. The amount of energy to be saved by using e-Bikes hasn't been quantified, but the test vehicle in Portland "will probably displace about two gallons of fuel every day", said Scott Phillippi, UPS's engineering manager.

    Phillippi says that one e-Bike alone won't create a huge difference in UPS's carbon emissions, but he describes it as “a piece of our overall strategy” as far as environmental impacts and efficiencies.

    It also ties into the company's broader strategy to settle a problem that troubles Portland and other cities around the world: traffic jam. According to UPS, traffic jam costs it hundreds of millions of dollars a year in additional operating costs. The time when the average UPS delivery truck is stuck in traffic is about 16 minutes a day, slowing its deliveries and increasing the company's carbon emissions.

    The pilot program is in its early stages and already has hit its first stage: ice storms pulled trees and branches down all over the city, blocking bike lanes and making travel dangerous. How do e-Bikes deal with it?

    If the trial proves successful, you may be able to see UPS delivery people wearing bike shorts in other places around the country, "Other cities have expressed some interest," Phillippi said.