It’s known that green tea is a symbol of Chinese culture. Also, it helps to improve health in so many ways that some people think of it as a kind of medicine. Perhaps that is why the Chinese have been using it for more than 4, 000 years to treat all kinds of medical problems. Today, scientists know that there are catechin, caffeine, vitamin C and theanine in green tea that are good for health.
Catechin is helpful for lowering (降低) cancer (癌症) risk. It protects the body from cancer-causing substances (物质) and slows the growth of cancer. Besides fighting cancer, catechin prevents serious health problems like heart disease.
Caffeine causes the heart to beat faster. That’s why it was once thought that caffeine was not very healthy, but studies suggest that there are also good reasons for drinking caffeine. Specifically, caffeine has to do with a lower risk for Parkinson’s disease and liver (肝脏) disease. Yet, caffeine also has some weaknesses. It can influence sleep and make people nervous, so experts advise teenagers not to have more than 100 ml of caffeine a day. This is about the caffeine of a small cup of coffee.
Vitamin C is something that the human body cannot make enough by itself. So we have to get it through food and drink. The vitamin may play a role in improving physical conditions to colds and the flu. Also, it helps people to get well more quickly from those illnesses.
Theanine is another healthy substance found in tea. It has been shown to lower stress, both mental and physical, and increase mind abilities. It is also used for preventing some brain diseases.
As you can see, green tea has many good values. Drinking it may help you stay healthy. Of course, as with any healthy substance, it is important to check if there are any bad influence as well.
1. Why have the Chinese been using tea for over 4, 000 years according to the passage?A.Because it’s delicious for us to drink. |
B.Because it helps to deal with illnesses. |
C.Because it’s a symbol of Chinese culture. |
D.Because it’s made into different drinks. |
A.It lowers cancer risk. |
B.It makes the heart to beat faster. |
C.It lowers liver disease risk. |
D.It makes people less stressed. |
A.Tea can take the place of medicine. |
B.We should drink as much tea as possible. |
C.Tea has some bad influence on our health. |
D.Drinking tea may help people to stay in health. |
A. | B. | C. | D. |
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[A] Chinese astronauts Zhai Zhigang, Wang Yaping, and Ye Guangfu of the Shenzhou Ⅷ spaceship completed their six- month space station task. | ||||
[B] China’s space station is now open to scientists and engineers. It is also a national space lab. It can support scientific research and experiments. | ||||
[C] Long March-2C carrier rocket was sent into space on July 9, 2023.It was the 478th flight task of the Long March A carrier rocket series. | ||||
[D] China’s L-SAR4 01 satellite can get high-resolution (高清晰度的) images at night and see right through clouds and smoke. These images show views of our beautiful blue planet. | ||||
Wang Ning | The experiments done in the space lab are interesting and attractive. | |||
Li Ming | The high-resolution images from the space are really amazing. | |||
Jiang Lin | The hero astronauts of Shenzhou Ⅷ make me feel proud of our country. |
【推荐2】Everyone has got two personalities(性格)---the one that is shown to the world and the other that is secret and real. You don’t show your secret personality when you’re awake because you can control yourself, but when you’re asleep, your sleeping position shows the real you. On a normal night, of course, you often change your sleeping positions. The important position that best shows your secret personality is the one that you are asleep and completely don’t know what’s happening around you.
If you go to sleep on your back, you’re a very open person. You normally trust people and you are easily influenced by new ideas. You don’t like to make people unhappy, so you never express your real feelings. You’re quite shy and you aren’t very confident.
If you sleep on your stomach, you are a person who likes to keep secrets. You worry a lot and you’re always easily becoming sad. You never want to change your ideas, but you are satisfied with your life they way it is. You usually live for today not for tomorrow.
If you sleep on curled up(蜷缩), you are probably a very nervous person. You have a low opinion of yourself and often protect yourself from being hurt, so you are very defensive. You’re shy and you don’t usually like meeting people. You like to be on your own.
If you sleep on your side, you have usually got a well-balanced(平衡的)personality. You know your strengths and weaknesses. You’re usually careful. You have a confident personality. You sometimes feel worried, but you don’t often get unhappy. You always say what you think, even if it makes people angry.
1. You may find the passage in .A.a science magazine | B.a guide book |
C.a sports newspaper | D.a story book |
A.In the daytime | B.At the beginning of sleep |
C.At night | D.During the deep sleep |
A.on curled up | B.on her stomach |
C.on her back | D.on her side |
A.An open person likes sleeping on his or her side. |
B.A confident and careful person always sleep on his or her back. |
C.A defensive person only sleep on his or her side. |
D.A nervous person may sleep on curled up. |
A.Sleeping on your side is the best way of sleeping. |
B.Changing positions will cause sleeping problems. |
C.Sleeping positions show people’s secret personalities. |
D.Enough sleep makes people look better and healthier. |
【推荐3】A
For writers and scientists across the world, one of the highest prizes they look forward to getting is the Nobel Prize. The 2017 Nobel prize was announced in October. Here are three prizes among the six. Let’s have a look | |
2017 NOBEL PRIZE IN PHYSICS | |
| |
Gravitational Waves (引力波) Scientist Albert Einstein thought of the idea of gravitational waves more than 100 years ago. But it was in September that people finally found them by using LIGO . Three US scientists, Rainer Weiss, Barry C. Barish and Kip S. Thorne, won the 2017 Nobel Prize in Physics because of their discovery of gravitational waves which allow scientists to look at the space in a new way. | |
Kazuo Ishiguro | International Writer 2017 NOBEL PRIZE IN LITERATURE He has an Asian face. He writes in English. And he writes stories happening in different places across the world. Kazuo Ishiguro ( 石墨一雄), a Japanese --born English writer, won the 2017 Nobel Prize in Literature because his novels remind us of how international the world is . In his first book, A Pale view of Hills, Ishiguro tells a story of a middle aged Japanese woman living alone in England. But then he went much further. When We were orphans sets the story in Shanghai. The Remains of the day tells an English butler (管家) recalling his days during the World War II. Of course, he has many other excellent books. |
2017 NOBEL PRIZE IN PHYSIOLOGY OR MEDICINE | |
Clock in your body Have you ever heard of the word” biological clock”? For many years, people have known there is a clock inside plants, animal and humans. However, nobody knows how this clock actually works. In the 1980s, three US scientists , Jeffrey C. Hall, Michael Rosbash and Michael W. Young, found a gene(基因) that controls the clock. They found the biological clock influences people’s sleep, body temperature and so on, and the environment also influences the clock. |
1. _______ scientists mentioned above won Nobel Prizes in 2017.
A.Three | B.Four | C.Six | D.Seven |
A.Physics | B.Chemistry | C.Literature | D.Physiology or Medicine |
A.Albert Einstein | B.Rainer Weiss | C.Barry C. Barish | D.Kip S. Throne |
A.He was born in Japan but lives in England now. |
B.He only writes novels about Japanese people. |
C.He writes his novels in English now. |
D.He sets his stories around the world. |
A.gravitational waves help humans learn more about the space. |
B.only humans have biological clocks inside their body. |
C.people still don’t know how the biological clocks work |
D.Kazuo Ishiguro has only written three novels so far. |
【推荐1】On the morning of Nov. 24, China made history by starting the world’s first lunar return mission (月球返回任务) of the past 44 years. On that day, a Long March 5 rocket was sent into space by carrying the Chang’e 5. The mission lasted for 23 days and it is special for several reasons.
A return mission
Chang’e 5 marked China’s first take off from the moon to carry samples (标本) back. This success shows China has mastered the technology for travelling between the Earth and the Moon, which also will help with China’s future space research. The last lunar sample return mission was Luna 24 of the former Soviet Union (苏联) in 1976.
Larger samples
Chan’e 5 collected 1,731g of lunar samples, while the former Soviet Union sent back only 330g. “These samples will be a treasure.” said a US Professor Jolliff, “My hat is off to Chinese scientists for completing a very difficult mission.”
A new landing site
Chang’e 5’s lunar landing site is known as the Ocean of Storms. It’s on the near side of the moon. No probes (探测器) have visited that place before. The samples collected here provide the youngest ones ever tested: just 1.2 billion years old. Samples from the U.S. and the former Soviet Union landing sites are more than 3 billion years old, scientists say.
1. What did Chang’e 5 do on the Moon?A.Collected samples from the moon. |
B.Searched for treasures on the moon. |
C.Found out if there were storms on the moon. |
D.Brought Luna 24 of former Soviet Union back. |
A.it’s most likely to have water | B.it’s not difficult to land there |
C.younger samples may be found there | D.other countries landed their probes before |
A.history | B.progress | C.difficulties | D.achievements |
One day, I visited my friend Jack on a sheep farm in North America. Suddenly one sheep came to cry in front of us. She made the most painful(痛苦的) cries. Jack said ,"Something must be wrong. Come on, Mike. Let's follow her."
Together we followed the sheep back to where she was feeding on the farm. She rushed forward and kept on looking back to see if we were coming. She finally took us to an old well (井) , and we heard the sad voice of her young baby that had fallen into the well. As the well had no water and was only six feet deep, we took a ladder(梯子) and climbed down. After a few minutes, the baby sheep was saved. The mother sheep looked happy with the successful (成功的) result of the accident. She came to tell us her trouble and got help. How amazing!
1. The mother sheep came to Mike and Jack because_______.
A.she needed their help | B.she had no food |
C.she had no water | D.there was a hunter |
A.man | B.ladder | C.sheep | D.wolf |
A.机会 | B.演出 | C.玩笑 | D.事故 |
A.There was no water in the well. |
B.At last the baby sheep lost its life. |
C.The story happened in North America. |
D.Animals can make people understand them. |
【推荐3】People often say it’s difficult to save money. Here are some good ways for you.
If you would like a new dress, but it’s quite expensive for you. Maybe you should check it at the end of the season. There are usually great sales at this time. It can be a little late for you, but you do get it and at the same time, save some money.
Do you find it? Sometimes the same thing has different prices in different places. That’s why you should buy things in the right place. Buy vegetables and fruit in the market but not in the supermarket. Buy school things at wholesale (批发) shops but not at the shops near your school. You can also search for what you want on the Internet to find its best price.
Finally, you should buy what you really need. People often spend money on unnecessary (不必要的) things, so it’s good for you to spend some time thinking before you buy something. You will find it can help you save much money.
根据短文内容,判断下列句子正误,正确的在答题卡上将“T”涂黑,错误的在答题卡上将“F”涂黑。
1. If you want to save money, buy clothes at the end of the season.
2. You will pay more money for the vegetables in the market than in the supermarket.
3. In the wholesale shops, you will spend less money on school things.
4. You can also buy things on the Internet at the best price.
5. It’s good for you to buy everything you want without thinking.