1 . The Mona Lisa is the famous Leonardo da Vinci painting of a woman with a mysterious smile. This week, the painting gave up a secret.

Scientists using X-rays to examine the chemical structure of a small part of the painting discovered a technique Leonardo used in the work. An oil paint used for it was a special, new chemical mixture, which suggests that the Italian artist was in an experimental mood when he worked on the painting in the 16th century.

“He loved to experiment, and each of his paintings is completely different technically,”said Victor Gonzalez, a chemist who has studied the chemical element (成分) of several works by Leonardo and other artists. The researchers found a rare lead compound (铅化合物) — plumbonacrite, in Leonardo’s first layer of paint. The discovery proved that da Vinci most likely used lead oxide to thicken and help dry his paint. The paint in the study is about the thickness of a human hair, lying in the top right area of the painting.

The scientists looked into its atomic structure using X-rays, moving particles at the speed of light, permitting researchers to look deeper into the paint structure. “ Plumbonacrite is really a fingerprint of his recipe, as it’s the first time we can chemically confirm it,” Gonzalez said.

Dutch artist Rembrandt may have used a similar mixture when he was painting in the 17th century. Gonzalez and other researchers have found plumbonacrite in his work, too. Leonardo is thought to have put lead oxide powder, which has an orange color, in the oil to make it thicker and dry faster. “What you will get is an oil that has a very nice golden color,” Gonzalez said. “It flows more like honey.”

But the Mona Lisa — said by the Louvre to be a portrait (肖像) of Lisa Gherardini, the wife of a Florentine silk businessman — and additional works by Leonardo still have other secrets to tell. “What we are saying is just a little brick in the knowledge,” Gonzalez said.

1. What’s the new discovery about the Mona Lisa?

A．A new explanation of the secret smile.

B．A new chemical element used in the painting.

C．The secret of the woman in the painting.

D．The structure of the paint da Vinci used.

2. Which best explains the underlined word “fingerprint” in paragraph 4?

A．Open secret.

B．Widespread use.

C．Hidden element.

D．Long-term dream.

3. How does Gonzalez view the use of lead oxide powder in paintings?

A．It helps to make many things into paints.

B．It helps to make paints easy to deal with.

C．It helps to keep the paintings last long.

D．It helps to make paintings rich in color.

4. What can we learn about the Mona Lisa from the last paragraph?

A．It has more secrets to tell the world.

B．It’s the portrait of a silk businessman.

C．It’s well kept in bricks in the Louvre.

D．It has a mixture of different art styles.

2 . Exercise and healthy eating go together to produce a healthy lifestyle! Many of us have internal (内心的) ________ why we can’t do either one! We have all once felt ________ for planning an activity but failing in the end! We are busy. We don’t have time to drive to the ________, the weather is too bad for that promised walk, and it’s too hot or cold out, or any other number of excuses!

The good news is that any exercise helps increase our ________. Fifteen minutes of activity a day, or 90 minutes per week, is enough to cut your risk of death by 14%, compared to ________ people. That is a healthy ________ to develop.

Please take the time to add ________ to your life. Start slow, if you are out of shape. You do not need to be a (n) ________ sportsperson. Fast walking is enough to help control diabetes (糖尿病)! ________ by adding a 10-minute walk to your daily life! Even adding 5 minutes to your walk each week can make a(n) ________ difference.

Try to ________ for at least 30 minutes per day. You can break it up into three 10-minute ________ if you need to. It all makes ________. Just get moving! Moreover, some apps on your phone can help ________ your steps. You do not need an expensive gym membership either. To ________ your health, just walk out the door!

1.

A．dreams

B．excuses

C．plans

D．regrets

2.

A．thankful

B．anxious

C．ready

D．sorry

3.

A．beach

B．gym

C．school

D．hospital

4.

A．confidence

B．courage

C．wealth

D．fitness

5.

A．inactive

B．humorous

C．impressive

D．powerful

6.

A．idea

B．skill

C．habit

D．hobby

7.

A．admiration

B．excitement

C．movement

D．achievement

8.

A．excellent

B．suitable

C．responsible

D．graceful

9.

A．Focus

B．Explore

C．Start

D．Contact

10.

A．extra

B．strange

C．serious

D．positive

11.

A．come up

B．work out

C．break out

D．call off

12.

A．parts

B．facts

C．causes

D．kinds

13.

A．efforts

B．sense

C．troubles

D．money

14.

A．change

B．explain

C．track

D．guide

15.

A．injure

B．control

C．affect

D．improve

3 . There are so many beautiful places in the world that wait for you to explore, but some of them won’t wait around forever.

The Dead Sea, for example, known for being one of the saltiest bodies of water in the world is in danger of disappearing. Tourists are in the rush to the lake to float（漂浮）in its waters and put its mineral-rich mud on their skin. However, the water level has been dropping more than three feet per year in recent years. In fact, if nothing is done by 2050, it will be too late.

Madagascar’s rainforests could also be gone in about 30 years. They once covered 120,000 square miles, but due to logging（伐木）and forest fires, only 20,000 square miles remain today. This is sad for many animals that call Madagascar home. About 80 percent of the species（物种） that live there can’t be found anywhere else in the world, and there are even many more yet to be discovered.

There are also many man-made places of interest with long history around the world that are at risk of disappearing. One of these is Machu Picchu. A trip to these Inca ruins is on many people’s plan lists. However, Machu Picchu has been in danger, too. If steps are not taken to protect the ancient site, it could be gone in the near future.

Another place in danger is the Great Wall of China. Around one-third of the wall, built over centuries and completed in the Ming dynasty, is already gone. Wind and rain have weathered it and plants that grow in the wall have weakened it further. Also, poor villagers have stolen its bricks in order to sell them or build homes with them.

It’s hard to believe that so many amazing places could soon be gone for good. If you have your heart set on visiting any of these places, pack your bags and get to them before time runs out!

1. What is the problem with the Dead Sea?

A．It is polluted seriously.	B．It attracts too many tourists.
C．Its water is drying up.	D．Its water is too salty for people.

2. What is the importance of Machu Picchu?

A．It has a great influence on people’s lives.	B．It is important to some special species.
C．It is of great value in human history.	D．It serves as a name card for its country.

3. What do the places mentioned have in common?

A．They are under good protection now.

B．They are important to the environment.

C．They are famous man-made places of interest in the world.

D．They are in danger of being impossible to see one day.

4. Where can you probably read the text?

A．In a travel magazine.	B．In a science report.
C．In a personal diary.	D．In an adventure novel.

4 . 张桂梅，丽江华坪女子高级中学校长。她行善助学，爱生如子，被评为“感动中国2020年度人物。现在请你根据以下信息提示，用英语写一篇人物小传介绍张桂梅老师。

姓名	张桂梅
生日	1957年6月
出生地	黑龙江
主要事迹	1990年开始在云南一所中学任教。 2001年触动于当地女子的不幸生活，计划建立女子中学。 2008年创建全国第一所完全免费的女子高中。 13年米，尽管身体多病，帮助了1800多名山区女子考上大学，走出大山。

写作要求：
1.词数控制在80词左右，所给内容不计词数。
2.内容要包含以上所有内容，可组织信息，也可适当发挥。

Zhang Guimei, who was born in Heilongjiang in June, 1957, began her career as a teacher in 1990 in a middle school in Yunnan Province.

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5 . 屠呦呦从传统中医汲取营养，潜心研究，最终成功地找到治疗疟疾的关键方法。(汉译英)

6 . 既然大家都知道追求梦想的重要性，你们应该为自己树立一个目标，以免迷失方向。(汉译英)

7 . 事实上，大多数人在某种程度上都会以貌取人。(汉译英)

8 . Understanding body language is important in life. Whether you’re a businessman or a shop clerk, you have to know how to communicate effectively with them.     1     Here are four tricks to better understand body language.

•Laugh to really make a connection.

Laughter signals the important form of connection between two people. Laugh when you want to really connect with someone in a business sense or a personal sense.    2    

•Lift your chin up.

When you lift your chin up, you display a great amount of pride, confidence, and dominance.    3     Next time you want to display confidence, such as making an on stage speech, telling a story to a group of friends, or interviewing for a desired position, keep your chin up!

•     4    

When trying to build relationship with someone speaking to you, nod your head on occasion when the person says new things. This is a huge sign showing that you are in agreement with them and that you are listening and accepting what they are telling you. It creates a great bond in conversation when the listener is nodding their head and displaying that they are really listening.

•Gently touch the person on the arm.

    5     This is not to say it’s okay to go around touching people all the time. However, this is referring more to a light touch on someone’s arm or a playful pat on the shoulder. By doing this, you actually create a bond between you and the person.

A．Nod your head.

B．Uncross your legs.

C．By keeping it up you show you’re content with yourself and secure in who you are.

D．Therefore, it’s essential that you understand what you’re saying beyond just the words.

E．Communication is what life is all about, and your body communicates almost everything!

F．By gently touching someone you are speaking with on the arm, you build the feeling of trust.

G．Laughing and getting someone else to laugh can be extremely beneficial when it comes to communicating effectively!

9 . 听下面一段独白，回答以下小题。
1. What is probably the speaker’s current job?

A．A car salesman.

B．A car engineer.

C．A car mechanic.

2. What is the best-selling car brand in China according to the speaker?

A．VW Santana.

B．Mercedes.

C．Toyota Corolla.

3. Which country has the second-biggest car market in the world?

A．China.

B．The US.

C．Germany.

4. What does the speaker think will happen in the future?

A．All cars will be cheaper.

B．People will only buy electric cars.

C．American-made cars will be more popular.

10 . 听下面一段独白，回答以下小题。
1. Who is the speaker?

A．A writer.

B．A reporter.

C．An editor.

2. What is necessary for a volunteer to have?

A．Experience.

B．High scores.

C．Speaking skills.

3. What’s the best reason for taking the job?

A．To have fun.

B．To make money.

C．To know more people.

4. When are volunteers expected to talk to the speaker?

A．Next week.

B．Tomorrow morning.

C．Right after the meeting.