题目内容：

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 kilograms 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.

1.In southern China, people usually buy _____ at a time.

A. a small amount of food

B. a large amount of food

C. enough food for a week

D. a lot of meat and vegetables

2.If you buy fruits in the south, the shop owners may _______.

A. peel and cut them for you

B. laugh at you

C. only sell them in boxes and baskets

D. only sell a single apple or pear

3.Many northern Chinese have the habit of keeping food because ________.

A. the weather is hot and wet

B. food goes bad quickly

C. the weather is cold and dry

D. they live far away from markets

4.The underlined words "due to" mean "_________" in Chinese.

A. 所以

B. 但是

C. 然而

D. 因为

5.Which is the best title for the passage?

A. Different Weather in China

B. Different Living Habits in China

C. Southern Chinese and Northern Chinese

D. Southern China and Northern China