Keeping better eating habits can help you reduce (减少) disease. A healthy eating plan means choosing the right foods to eat and preparing foods in a healthy way.
Do you often change your toothbrush? Maybe you think it is not necessary. A study shows old toothbrushes bring disease. You should often change your toothbrush.
Exercise
Swimming, running, skating, skiing, dancing, walking and some other activities can help you stay healthy. You should exercise at least three times a week and for twenty minutes or more each time. Do it.
Plan out your life
You should have breakfast before you go to school. Have a proper (合适的) meal for lunch. Follow a healthy diet.What’s the passage mainly about?
| A．Healthy food. | B．Healthy lifestyle (生活方式). |
| C．Junk food. | D．Healthy sports. |
What is the best title (标题) for the second paragraph?
| A．Man’s disease | B．Disease |
| C．Watch the toothbrush | D．Your bathroom |
At least how long should you exercise each time?
| A．Twenty minutes. | B．Fifteen minutes. |
| C．Five minutes. | D．Ten minutes. |
From the passage, we know _______ can help us stay healthy.
| A．proper diet | B．exercise |
| C．sleep and exercise | D．proper diet and exercise |
What does a healthy eating plan mean?
A. Choosing the right foods.
B. Cooking the foods in a healthy way.
C. Never eat meat or fresh vegetables
D. Both A and B.
In 1988，Wang Chengbang retired（退休）from the army.Instead of enjoying a relaxing life，he volunteered to save the soil from desertification（沙漠化）by planting trees in Korla，Xinjiang.
It is no easy job.The high temperature in Korla makes it difficult for anyone to work day after day in the sunshine.Besides，water is a big problem.In fact，Wang Chengbang's work in the first few years failed as very few trees survived（存活）.
But Wang Chengbang would not give up."After trying many different ways，I have learned how to grow young trees in a better way，" said Wang Chengbang.He also worked out new ways to save water.With his hard work，more and more trees have survived.So far，he has planted more than 1.5 million trees.Those green trees prevent desertification，make the air cleaner and protect people from the hot sun.Now，Korla is a model city in environmental protection.
Wang Chengbang is also successful in fighting cancer（癌症）.In 2005，he had cancer and was told that he had only six months to live.However，he continued taking care of his trees rather than lying on the hospital bed."Working is the best medicine.Planting trees helps to fight cancer，" he often jokes.
Now，at the age of 85，Wang Chengbang is still working.
（1）Is it an easy job for Wang Chengbang to plant trees？
（2）How many trees has Wang Chengbang planted so far？
（3）What is Wang Chengbang successful in？
（4）In the summer holiday，do you want to be a volunteer to work with Wang Chengbang？Why or why not？
| A.Would you like to join us？ B.Would you mind doing some cleaning？ C.Don't worry. D.Thanks for your help. E.Why don't you go with us？ F.What's up？ G.I′ll be there on time. |
A：Nice to meet you，Diana.Welcome to our class!My name is Li Xiang.
B：Nice to meet you，too.
A：You look a little unhappy.（1）
B：I have no friends to talk with，so I'm worried.
A： （2） I can help you.
B：Thanks，Li Xiang.
A：Mm，I think you should join in some activities.We are going to the nursing home to help the old people this Saturday. （3）
B：Yes，I'd love to.When and where shall we meet？
A：At the school gate at 9：00 this Saturday.
B：OK.（4）
A：That's great!I think you will make many new friends in this activity.
B：I think so.（5）
A：You're welcome.
A new contact lens（隐形眼镜片）has been developed by scientists from America，Britain and China.It can check for illnesses at any time by examining chemicals in tears.A new sensor（感应器）is used to achieve his purpose.
Scientists hope that the improvement could help to deal with sudden medical events.Dr.Zhao Yunlong said， "COVID﹣19 has had a great influence on the scientific world.And we are doing research to help people deal with similar events in the future."
When introducing the new contact lens，Dr.Guo Shiqi，a researcher at Harvard，said，"In the past，the sensor was put between the layers（层）of the lens.It didn't have direct contact（接触）with tears，But our new sensor is smaller and smarter.I t can be fixed to a lens and keep direct contact with tears.What's more，it causes no discomfort to the eye.
The contact lens has not been put to the market，but researchers are quite sure that it will be welcomed.It is especially useful for the old and those who may experience sudden medical events.
As society develops，scientists are supposed to develop more products that provide care and convenience（便利）for people.The contact lens is one of what they are researching on.Earlier，a California company developed another kind of contact lens using LED technology.It can show the heath information on the mobile phone.Steve Sinclair，head of the company，said， "We have to build something that helps you when you need it and stays of when you don't need it."
（1）According to Dr.Zhao Yunlong,they did the research because .
| A． |
they are experienced |
| B． |
they are asked to do so |
| C． |
they want to fight COVID﹣19 |
| D． |
they want to help people |
（2）The advantage of the new sensor is that .
| A． |
it is put between lenses |
| B． |
it is much cheaper |
| C． |
it is smaller and smarter |
| D． |
it can be used for many years |
（3）The writer writes the last paragraph by giving .
| A． |
an opinion and facts |
| B． |
an opinion and answers |
| C． |
a question and facts |
| D． |
question and answers |
（4）The best title of this passage probably is .
| A． |
Sensors：Science and Technology |
| B． |
Contact Lenses Care and Convenience |
| C． |
The Most Useful Product |
| D． |
Great Companies of Contact Lens |
In September，2020，I had the chance to come to China for the first time and visited Yunnan Province.
On the first day we went to a village named Xiaopingzhai.I was amazed to discover that small tea factory could bring in 6 million yuan a year with only 20 workers.
The next of our trip was the village of Kangmian.Many families now live there after leaving uninhabitable（不适合居住的）areas.The new village has 450 housing units.There I have learned that the government helps the people by providing jobs so that they can support themselves.Of the 1，331 villagers，609 now have jobs.
In Shuiduichong，a traditional Yao ethnic（瑶族）group village，we visited the workshops for making silver ornaments（饰品）.We discovered the skill had a history of more than 200 year.Besides the traditional use of silver ornaments in Yao culture， ▲ .
A set of silver ornaments can be sold for between 10，000 and 20，000 yuan on the market.The making of silver ornaments creates jobs in the village.Shuiduichong now has more than 20 family workshops.
This trip was over.I have realized that through the hard work of the Chinese government，great changes have taken place in Yunnan.These impressive（印象深刻的）results should serve as an example for other developing countries.
（1）The trip followed the way of .
| A． |
Xiaopinghai→ Shuiduichong→ Kangmian |
| B． |
Xiaopingzhai→Kangmian→ Shuiduichong |
| C． |
Kangmian→ Shuiduichong→ Xiaopingzhai |
| D． |
Kangmian→Xiaopingzhai→ Shuiduichong |
（2）In Kangmian the government helps the people by .
| A． |
selling products |
| B． |
giving money |
| C． |
opening factories |
| D． |
providing jobs |
（3）Which of the following sentences can be put in the ▲？
| A． |
tourists like them very much |
| B． |
these objects have a high value |
| C． |
people buy them as gifts |
| D． |
they can be seen everywhere |
（4）The structure of the passage may be .
（①＝Paragraph 1
②Paragraph 2
③Paragraph3
④Paragraph 4
⑤Paragraph5
⑥Paragraph 6）
| A． |
|
| B． |
|
| C． |
|
| D． |
|
China has named the nation's first Mars rover（火星车）Zhu Rong.For all of us，Zhu Rong is a well﹣suited name.
In an ancient Chinese story，Zhu Rong had the face of a man and the body of an animal.He rode on two dragons.When he had a big fight with Gong Gong，the god of water，Zhu Rong won.But after the fight，the human world came into complete darkness.Then he brought fire from heaven（天国）to the world.
"Zhu Rong is regarded as the earliest god of fire in traditional Chinese culture，" a space official said. "The first Mars rover was named Zhu Rong.The name symbolizes（象征）light and hope for space exploration（探索）in our country，and means to guide humans to continue exploration."
After leaving the earth last summer，Zhu Rong circled Mars for several months and landed on it in May.In recent years，our country has sent up the world's first quantum satellite（量子卫星），and Chang'e﹣4 has made a soft landing on the moon.We have made great progress in space technology and will soon start building our own space station.
（1）What Zhu Rong brought from heaven to the world was .
| A． |
fire |
| B． |
wars |
| C． |
water |
| D． |
animals |
（2）For China's space exploration，the name Zhu Rong symbolizes .
| A． |
a big fight |
| B． |
complete darkness |
| C． |
light and hope |
| D． |
Chinese culture |
（3）The underlined word "it" in the last paragraph refers to" "
| A． |
the earth |
| B． |
Mars |
| C． |
the moon |
| D． |
the sun |
（4）According to the passage，we can infer that .
| A． |
Zhu Rong is a bad person in an ancient Chinese story |
| B． |
China has made great progress in space technology |
| C． |
the writer is proud of China's space technology |
| D． |
the official doesn't like the name Zhu Rong |
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