There are many types of tea. They have their own functions.

◆Green tea is the best choice for office workers

People who always work in places with air condition may face skin problems such as easily dry skin. Among all the drinks, green tea is the best choice. Because there are important things in green tea and they are often called catechins(儿茶酚). Moreover, drinking more green tea can prevent computer radiation(辐射).

◆Winter is the season to drink black tea

Chinese medicine believe that different people should drink different kinds of tea. Because different people have different characteristics(特征) and tastes of each kind of tea. Black tea can warm the stomach(胃) and quicken digestion(消化). Therefore, drinking warm black tea in the cold winter is a most suitable choice.

◆Do not drink strong tea

Strong tea may make the body far too excited. And it can badly affect(影响) the cardiovascular(心血管的) as well as the nervous system. For a person who has problems with these parts, to drink overly strong tea causes heart and blood pressure illness, or even make the old illness much worse.

◆Do not drink too much tea when you are eating

Drinking too much tea or strong tea may not be good for taking in many constant elements(常量元素) and trace elements(微量元素). Also, people should not drink tea with milk or other milky food.

Superfoods are foods that are full of vitamins and nutrients (营养素). 【小题1】 Blueberries, chia seeds (奇亚籽), and green tea are all superfoods. Some research shows a diet with many superfoods can prevent illness.

【小题2】 Many people like blueberries with their breakfast in the early morning, as they are sweet and tasty. They are good as part of a meal or we can eat them alone. These small round berries came from North America, but now they grow in Europe as well. Blueberries contain (包含) a lot of vitamins, which help the body stay healthy. The United States is the biggest national producer of blueberries. 【小题3】

One healthy seed comes from Mexico. Chia seeds contain a lot of fiber (纤维素), which gives us energy and makes us feel full. You can add chia seeds to cereals, cakes and smoothies. Just one ounce of these seeds contains 10% of our daily protein needs. Runners eat energy bars containing chia seeds to help them run for longer. Chia seeds help our blood stay healthy and reduce the risk of brain disease. 【小题4】

There are many ways to enjoy superfoods in drinks. Green tea is a healthy superfood. Chinese people drink about half of the green tea in the world. Studies show green tea is good for your heart.

【小题5】 Some people don’t like green tea, as they think it tastes bitter. Other people like this taste. Many families drink green tea at mealtimes or take it out.

It’s important to eat a balanced diet. We can’t live just on superfoods, but they are good to eat and drink.

At East China University of Science and Technology, students will get a coupon (优惠券) if they eat up their food. Students can collect coupons and exchange them for small gifts, such as books, magazines, mobile phone covers and hand warmers.

“It’s been such a surprise,” said Liang Zhaoyun, 19, a student at the university in Shanghai. “It has given us one more motivation to finish our food.”

The measure (措施) is part of a national “eat-up” campaign (行动) which is organized by students to deal with food waste on campuses (校园).

Why only on campuses, you might ask? Because according to a report by Xinhua News Agency, students waste twice as much food as the national average (平均).

The campaign on campus food waste is receiving attention across the country.

“The aim of the campaign is not only to encourage students to finish their food. We hope it can also encourage students to choose a more environment-friendly and healthy lifestyle,” said Tao Siliang, secretary of the Youth League Committee at Shanghai University.

But some school food is poorly prepared, so students do not like to finish it all. Some schools have taken notice of this and they are taking measures to improve it.

“I’m glad that we’ve reduced (减少) food waste since the ‘eat-up’ campaign began. But if we call on students to waste less food, we should also improve the service and food standard on campuses.” said Tao.