China covers large areas and has a great population. Different living habits have always been an interesting topic in the country. Recently, another difference between southern Chinese and northern Chinese became a hot one: the way people shop at markets.

    People from southern China say that they always buy what they need for just one or two meals. It is normal for them to buy half of a Chinese cabbage, two potatoes and 0.25 kilogram of beef at a time.

    However, one may be laughed at if he does this in the north. Instead, buying vegetables and meat enough for a week is usual. Also, you can buy a small amount (数量) of fruit, such as a single apple or pear, each time in the south. Shop owners even help you peel and cut them. But shop owners in the north hardly offer such service. And many fruits are sold in baskets and boxes.

    The difference could be due to the different weather.

    Food can be kept for a long time in the north, as it is usually cold and dry there. Many northern Chinese have the habit of storing food, especially for the long winter. But the hot and wet weather in the south makes southern Chinese buy just enough food for one meal or one day, or else the food may go bad.

    There are many online food shopping sites. Things l{#blank#}1{#/blank#}CDs, books, and DVDs sell well online. But it is quite different to sell food online because people like to see food with their o{#blank#}2{#/blank#} eyes. It is very I {#blank#}3{#/blank#} for people to buy fresh fruit and vegetables. Customers like to c{#blank#}4{#/blank#} their food by its color. They also want to touch and smell it. Some people like going to the same shop to buy food with good quality. So if the food is always g{#blank#}5{#/blank#}, they will feel comfortable buying it online.

    Boxes of fruits and vegetables have been d{#blank#}6{#/blank#} to homes around Britain for a few years now. Dried or canned foods are almost the same all the time, but fresh things are not. For example, People may want to pick their own apples so they can take the o{#blank#}7{#/blank#} that look nice. Buying dried and canned food online is easier. A person can buy this kind of food on the Internet and then buy fruits and vegetables at a store or a market.

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Do you like taking a trip? Now many students like riding bikes to take a trip. But it may be dangerous. For your own safety (安全), do the following things. 

Wear a bike helmet because it can protect (保护) your head. Look for a helmet that is right for you. The best helmet can't protect you if it isn't right for you. 

Wear the right clothes. They can make you feel better. They can also protect you. Bright-colored clothes like white help people see you clearly--even in the nighttime. Don't wear dark-colored clothes like black or brown when you are riding a bike. 

Follow the rules on the road. Always ride on the right side of the road. Please first look behind you before you turn left or turn right. And don't ride too closely (接近) to the cars--the cars may stop and the door may open suddenly! Also, don't just listen to music when you are riding a bike. If you listen to music, you may not know there is a car behind you. 

If you follow these tips, you'll be safe riding on the road.