We do not know when man first began to use salt, but we do know that it has been used in many different ways throughout history. Historical evidence shows, for example, that people who lived over 3,000 years ago ate salted fish. Thousands of years ago in Egypt, salt was used to preserve (保存) the dead.

    Stealing salt was considered a major crime (罪行) during some periods of history. In the eighteenth century, for example, if a person was caught stealing salt, he could be put in prison and his ears could be cut off.

    In the Roman Empire, one of the most important roads was the one that carried salt from the salt mines to Rome. Guards were stationed(安置) along the route to protect against salt thieves, and they received their pay in salt, thus bringing the English word, salary. Any guard who fell asleep while on duty was thought to be “not worth his salt”, and as a result he would get a little less salt on his next payday. The expression, “not worth his salt”, is still used today in English.

    In the modern world salt has many uses beyond the dining table. It is used in making glass and airplane parts, in the growing of crops, and in the killing of weeds (杂草). It is also used to make water soft, to melt (融化) ice on roads and highways, to make soap, and to fix colors in cloth.

    Salt can be got in various ways besides being taken from mines underground. Salt water from the ocean, salt water lakes or small seas can be used to make salt. Yet, no matter where it comes from, salt will continue to play an important role in the lives of people everywhere.

Building Trust in a Relationship Again

    Trust is a learned behavior that we gain from past experiences. {#blank#}1{#/blank#} Trust is a risk. But you can't be successful when there's a lack of trust in a relationship that results from an action where the wrongdoer takes no responsibility to fix the mistake.

    Unfortunately，we've all been victims of betrayal. Whether we've been stolen from，lied to，misled，or cheated on，there are different levels of losing trust. Sometimes people simply can't trust anymore. {#blank#}2{#/blank#} It's understandable，but if you're willing to build trust in a relationship again，we have some steps you can take to get you there.

    {#blank#}3{#/blank#} Having confidence in yourself will help you make better choices because you can see what the best outcomewould be for your well-being.

    {#blank#}4{#/blank#} If you've been betrayed，you are the victim of your circumstance. But there's a difference between being a victim and living with a “victim mentality”. At some point in all of our lives，we'll have our trust tested or violated.

    You didn't lose “everything”. Once trust is lost，what is left? Instead of looking at the situation from this hopeless angle，look at everything you still have and be thankful for all of the good in your life. {#blank#}5{#/blank#} Instead，it's a healthy way to work through the experience to allow room余地 for positive growth and forgiveness.

A. Learn to really trust yourself.

B. It is putting confidence in someone .

C. Stop regarding yourself as the victim.

D. Remember that you can expect the best in return.

E. They've been too badly hurt and they can't bear to let it happen again. .

F. This knowledge carries over in their attitude toward their future relationships.

G. Seeing the positive side of things doesn't mean you're ignoring what happened.

    Let's look back all these years you've gone through, what have you done for your life? Are you spending your time wisely to make your life worthwhile? Neal Wu shared some ways we should do to make our short time of life meaningful, find out what you need to do next:

    a. Make friends as opposed to networking

    Your friends will go a lot further than the professional contacts you make, especially since only one of the two groups is invested in your personal happiness.

    b. Become an expert by learning as much as you can and deeply seeking out the things you are curious about

    Find the things you enjoy and practice the skills you want to develop. If you can achieve expertise then it will be easy to obtain an audience.

    c. Volunteer to help out those less fortunate

    In the process you will gain a ton of new perspective and will better understand other people's real problems. In a society that always looks upward, these people are being forgotten easily.

    d. Become as independent as possible

    Even though you work in a big company, you should constantly make small steps to reduce your dependence on your job. Write a book, build an app, or start a small business on the side. Release your inner entrepreneur.

    e. Don't spend too much time worrying about your personal brand

    Accomplish(完成) things, and the recognition will follow.

    f. Stop treating life as a competition and do things for their own sake

    Genuine(真正的) interest should be what drives you to improve yourself, rather than a desire to beat others. Find a community of people who are interested in the same things as you do, and drive each other to keep improving.

    Sooner or later, many families will face the situation of moving. The experience can be very bad for kids, who may not be a part of the decision to move and may not understand it. You can take steps to make the entire process (过程) easier for everyone.

    Many kids like to stay in familiar places. So as you consider a move, weigh the benefits (好处) of that change against the comfort that neighborhood, school, and social life give your kids. If your family has recently dealt with a big life change, such as death, you may want to put off a move to give your children time to accept the fact.

    The decision to move may be out of your hands, perhaps because of a new job or money problems. Even if you're not happy about the move, try to keep a positive (积极的) attitude to it. During the move, a parent's attitude can greatly influence kids.

    No matter what the results are, the most important way to prepare kids to move is to talk about it. Try to give your children as much information about the move as possible. You can ask kids to join in the planning such as house-hunting or the search for a new school. This can make the change feel less like it's being forced on them. If you're moving across town, try to take your children to visit the new house and the new neighborhood.

    A move can have many problems, but good things also come from this kind of change. Your family might grow closer and you may learn more about each other by going through it together.

    Imagine a town with crosswalks but no pedestrians, cars and trucks but no drivers. Welcome to Mcity, a fake “city” built by researchers who are testing out the driverless cars of the future.

    The controlled test environment, which opened today (July 20, 2015) at the University of Michigan in Ann Arbor, covers 32 acres (the size of about 24 football fields) and contains all the trappings of a real suburb or small city. There is an entire network of roads lined with sidewalks, streetlights, stop signs and traffic signals. There's even a “downtown” area complete with fake buildings and outdoor dining areas.

    The idea behind Mcity is simple: test out new driverless car innovations in a human-free environment before these technologies are unleashed in the real world.

    "Mcity is a safe, controlled, and realistic environment where we are going to figure out how the incredible potential of connected and automated vehicles can be realized quickly, efficiently and safely," Peter Sweatman, director of the Mobility Transformation Center at U-M, said in a statement.

    The roads of Mcity are built to stand up to “rigorous, repeatable” testing, according to MTC officials. While Mcity drivers don't have to compete with real pedestrians, there will be one mechanical foot-traveler (a robot-like machine named Sebastian) that steps out into traffic to see whether the automated cars can hit the brakes in time. The fake city also features a traffic circle, a bridge, a tunnel, some unpaved roads, and even a four-lane highway with entrance and exit ramps, according to a report by Bloomberg Business.

    In addition to evaluating fully automated, or driverless cars, the researchers also hope to test out so-called connected vehicles within Mcity's limits. Connected cars can either communicate with one another (vehicle-to-vehicle control, or V2V) or with pieces of equipment, such as traffic lights, that are located near roadways (vehicle-to-infrastructure control, or V2I).

    Even the smallest details of Mcity have been planned out in advance to copy the conditions that connected and automated vehicles could face in the real world. For example, there are street signs covered up with graffiti, and faded yellow and white lane markings line the streets.

    Mcity is just one part of a much larger project that MTC and its partner organizations are establishing in an effort to get a whole fleet of connected and driverless cars on the road in Ann Arbor by 2021. In addition to the fake city, MTC is also continuing to launch connected and semi-autonomous(半自动) cars on real roadways. Eventually, the University of Michigan and the Michigan Department of Transportation said they hope to put 20,000 connected cars on the roads of southern Michigan.

    When I'm in Italy, I generally only eat Italian food. I doubt whether there's another country in Europe that has food that can keep me coming back for more.

    To eat well in Italy, finding the right restaurant is essential. I appreciate personality-driven restaurants, run by people keen(热衷的) to share their love of good cooking, and places serving family recipes. Signs of a good restaurant include a low-rent location, lots of locals, and a small, handwritten menu in one language. The menu is small because they're only selling everything they're cooking; it's handwritten because it's shaped by what is fresh today in the market; and it's in one language because they mostly serve locals.

    For a fast and cheap lunch, I look for Italian food in corner delis (熟食店): either a rosticceria, specializing in roasted meats and antipasti(开胃食物), or a hot table bar — a cafeteria offering a buffet of meat and vegetables. Another option is to drop by a neighborhood grocery store to pick up some cold cuts, cheeses, and other foods for a picnic.

    Italians tend to spend a long time on each course, and dinner is the evening's entertainment. For example, when you have a full-blown Italian dinner in a restaurant, you don't get out until midnight; a three-hour meal is common. Waiters often provide lots of drinks that seem designed to keep you from leaving. When you want the bill, you'll have to ask for it. To "eat and run" is seen as a lost opportunity.

    A couple of years ago, I sat down at my favorite place in Verona, Enoteca Can Grande, with my friend and guide Franklin. We let the chef, Giuliano bring us whatever he wanted. Just after the antipasti arrived, Franklin's wife phoned him and said, "Don't eat too much cheese or dessert." Later Franklin, who was not thin, surveyed our table. Sighing, he said, "The foods are so plentiful but I can eat few."

    "That's a pity," I said.

    I enjoyed the food for three hours and he watched me eating for three hours. Eating in Verona was really an amazing experience.