{#blank#}1{#/blank#} If you are growing tomatoes in your backyard for sale you are producing for the market. You might sell some to your neighbor and some to the local manager of the supermarket. But in either case, you are producing for the market. {#blank#}2{#/blank#} If people stop buying tomatoes, you will stop producing them.

    If you take care of a sick person to earn money, you are producing for the market. If your father is a steel worker or a truck driver or a doctor or a grocer, he is producing goods or service for the market.

    {#blank#}3{#/blank#} You may spend money in stores, supermarkets, gas stations and restaurants. Still you are buying from the market. When the local grocer hires you to drive the delivery truck, he is buying your labor in the labor market.

    {#blank#}4{#/blank#} But for each person or business that is making and selling something, it is very concrete(具体的). If nobody buys your tomatoes, it won't be long before you get the message. {#blank#}5{#/blank#} It is telling you that you are using energies and resources in doing something the market doesn't want you to do.

    Thousands of taxi drivers in Shenyang, Liaoning province, reportedly blocked streets with their vehicles on Sunday in protest against unlicensed vehicles using taxi-hiring apps and apps-based car rental companies providing passenger services, including high-end cars. Although the drivers also complained about the withdrawal of the fuel subsidy (补贴)by the government, their main complaint was the loss of business because of the rising number of Internet-based car services companies.

    On Wednesday, news reports came that Beijing transport authorities will take measures to stop the illegal “taxi business” of private cars through the newly rising Internet apps, following the footsteps of Shenyang and Nanjing.

    It is not yet clear how the Shenyang city government will handle the issue and whether it will declare the services offered by market leaders such as Didi Dache, a taxi-hiring app provider backed by Tencent Holdings, and Kuaidi Dache illegal. But Shanghai transport regulators (交通管理结构)have set a rule, by banning Didi Zhuanche, or car services offered by Didi Dache in December.

    Such regulations will cause a setback to the car-hiring companies and investors that are waiting to cash in on the potentially booming business. Just last month, Didi Dache got $700 million in funding from global investors, including Singapore state investment company Temasek Holdings, Russian investment company DST Global and Tencent. Besides, the market is uncertain that Kuaidi Dache is about to finalize its latest round of funding after getting $800 million from global investors.

    Regulatory uncertainties, however, could cast a shadow on the future of the Internet-based car-hiring services, which have become popular in most of China's big cities. To be fair, these companies' business model is anything but bad. For example, Didi Zhuanche works side by side with established car rental companies to provide high-end car service mainly for businesspeople through the Internet and mobile phone apps.

    Every link in this business model chain has legal companies and services. Hence, it is hard to define it as illegal and ban it.

    If you want to visit only the sights that you think are most interesting, you should definitely book one of the many private tours in NYC.

    Landmark Private New York Tours: The best way to make the most of your visit to the top NYC landmarks is to use one of the private tours in NYC.

    NY See It All: From traveling through Manhattan to getting onto a boat to visit Ellis Island and the Statue of Liberty, this private NYC tour delivers superior service. Customize(定制) your stops and see why this tour is one of the best private tours in NYC.

    NY Limo Tour: After choosing what you want to see, this private tour in NYC lets you write the route of your day. Whether you want to see historical NYC sights, movie sights, or cultural sights, it will help make your visit memorable.

    Aerial Landmark Tour: This is a fun and exciting way to explore New York City. On this 20-minute helicopter tour, you'll see the very best landmarks in Manhattan and the Bronx.

    Family-Friendly Private New York Tours: NYC isn't just a playground of adults; these family-friendly private New York City tours are ideal for people traveling with kids.

    Revolutionary Era Walking Tour: When you book this informative NYC walking tour, you and your kids will wander around Manhattan's Financial District and hear all about the American Revolution.With knowledgeable guides, your kids will love the tour too.

    Kids Greenwich Village Tour: This fun NYC walking tour is specifically created for children. You and your kids will visit some famous Greenwich Village sights, while the children, led by friendly guides,play games that relate to math, science, foreign language, and the arts.

    Oil is essential for modern life. About 64 percent of the world's oil is located in the Middle East, but the heaviest consumers of oil are Europe, America, and Japan. The problem lies in getting the oil from the countries that produce it to the countries that consume it. This is mainly done using oil tankers. Usually the oil is shipped safely and with no problems, but occasionally there is a disaster.

    Every year millions of tons of oil are spilled into the ocean. Although this is only a small percentage of the total amount shipped around the world each year, this spilled oil can have terrible effects on ocean life, including the coastlines where the oil washes up onto shore.

    One of the worst oil spills in history occurred along the Alaskan coastline in 1989, when the Exxon Valdez tanker ran aground off the coast of Alaska, spilling 42 million liters of oil. Although it wasn't the largest oil spill, the disaster was terrible because it occurred in such a sensitive natural area. In this spill, the tanker's captain, who was tired from overwork and drinking alcohol, had gone to take a rest. He gave control of the ship to another sailor, who was unfamiliar with the route. The ship ran onto Bligh Reef. Damaged by the reef, the ship leaked oil out into the ocean. More than 1,600 kilometers of coastline were affected by the oil spill. Many birds and otters died as a result of the oil covering their skin, and many other sea creatures and the animals that fed on them were also severely affected.

    While visiting the North pole in winter may not be at the top of your bucket list, the ever-changing ICEHOTEL, which opened its doors to visitors on December 14 this year, may change your mind.200 km north of the Arctic Circle in the Swedish village of Jukkasjārvi, the hotel, which is carved entirely from ice, is rebuilt annually.

    The 35 rooms, built to accommodate visitors on all kinds of budgets, vary from expensive suites to basic rooms that are furnished with just an icy bed and a reindeer skin. Among the highlights this year is the “Spruce Woods” suite. Sculpted by Christopher Pascoe and Jennie O'Keefe of Canada, it describes a camping scene complete with a classic microbus, a forest, and even an artificial campfire.

    There is also the artfully-carved “Living Ocean” suite to remind visitors of the importance of saving our oceans. The room is full of carved sea life that includes coral and a shark “swimming” right over the ice bed. “The suite is inspired by global warming and the overfishing that affects our oceans.” says artist Jonathan Paul Green. “I also think the idea of using frozen water from a river in northern Sweden to create an ocean with shells, fish, and corals is exciting.”

    The nearby “Haven” suite is a “magical gate of ice” guarded by two large animals. “We are inspired by the meeting between people and want to create an experience that invites curiosity and creativity, "says artist Jonas Johansson." It feels like a dream to get to work with ice that allows our love for light, shine, and reflection to wander freely from thought to creation.”

    Regardless of whether visitors select the carved suites or the basic ice rooms, the temperature is always set to a bone-chilling －5℃! That is why guests are advised to snuggle(蜷缩)up inside sleeping bags and wear gloves and winter hats all night. Not surprisingly, most end up spending just a single night at this unique hotel before moving on to the conventional and warmer hotels nearby.

    There is a very long list of rules for the New York City subway. Don't put your feet on a seat, don't carry open cups of coffee or soda, don't take more than one seat... Those are just a few of the rules. There are hundreds more.

    With so many rules, why is it still unpleasant to ride the subway?

    Some people think that the problem is that no one enforces the rules. Other passengers sometimes try to enforce rules. But you can't rely on them because New Yorkers have unwritten rules against talking to strangers and making eye contact with strangers. How can you tell someone to take her shopping bags off the seat and throw away her Coke without talking to her or looking at her? It is difficult.

    There are other New Yorkers who think that the subway is unpleasant because there are not enough rules. One rider wrote a letter to The New York Times a couple of weeks ago suggesting a few more subway rules. Here are some of the rules that she would like to see:

    —Don't lean on the poles. You prevent other people from holding on. They can fall down.

    —Talk quietly. The trains are already too noisy.

    —Give your seat to elderly passengers or to parents with small children.

    If those unwritten rules of etiquette are written down, will the rude people be more likely to follow them? It doesn't make sense to make more rules that no one will enforce.

    The real problem is that we are forgetting how to be nice to each other. It is embarrassing that we need a rule to tell us to give our seat to elderly passengers. Nobody should need to be reminded to do that.

    I say we stop talking about the rules and try to remember our manners. Let's be nice to each other not because a police officer might tell us to get off the train, but because it is the right thing to do. Then New York City would be more civilized —both above ground and below.