Mona Lisa, the mysterious woman in Leonardo da Vinci's 16 th century masterpiece, had just given birth to her second son when she sat for the painting, a French art expert said on Tuesday. The discovery was made by a team of Canadian scientists who used special infrared (红外线的) and three-dimensional (三维的) technology to study the paint layers on the work, which now sits in the Louvre Museum in Paris.

Bruno Mottin of the French Museums' Centre for Research and Restoration said that on very close examination of the painting it became clear that Mona Lisa's dress was covered in a thin transparent gauze veil (透明面纱) .

"This type of gauze dress was typical of the kind worn in early 16th century in Italy by women who were pregnant or who had just given birth. This is something that had never been seen up to now because the painting was always judged to be dark and difficult to examine, " he told a news conference.

"We can now say that this painting by Leonardo da Vinci was painted in memory of the birth of the second son of Mona Lisa, which helps us to date it more precisely to around 1503. " The young woman with the ambiguous half smile has been identified as Lisa Gherardini, wife of Florentine merchant Francesco del Giocondo. She had five children.

"People always wrote that Mona Lisa had allowed her hair to hang freely over her shoulders. This greatly surprised historians because letting your hair hang freely during the Renaissance was typical of young girls and women of poor virtue", he said.

The team had hoped to discover more details about Leonardo's painting techniques, which the artist used to create a hazy (朦胧的) effect. But scientist John Taylor said the team had been disappointed by the lack of brush stroke detail on the painting.

要点：1）珍惜朋友，有必要表达歉意；2）提出至少两条建议；3）期望和祝愿。

注意：字数：100字左右；邮件开头结尾已给出，不计入字数。 (道歉：apologize v. apology n.)

Dear Tom,

    I am sorry to know that you quarreled with your good friend last week.……

Yours,

Li Hua

    It surprised me--every time I saw Joe, he was smiling. It didn't1whether he had to stop at a stop light, or if he were the seventh person in2at the bank, and the service stopped just before he got there. Joe3smiled. It made me wonder why he seemed so4every day.

    Having observed Joe with other people, I5something else also. Joe asked people how they were doing, and really seemed to listen to their6. If someone were hurting, he had7for him and kind words, and offered to8in any way he could.

    It made me think. What if I tried to smile more? A(n)9of sorts began when I went to the grocery store. I smiled as I went up and down the aisles, and people I didn't even10smiled back at me. Some even11! The little kid in the cart(购物车) who was giving his mother a12time saw me smile and13talking, and, you guessed it-he made a shy little attempt at a smile. The man in the handicapped(残疾的) cart14a person to reach something and I got it for him. The smile even transferred over to him, and he15me.

    As I drove home, I was smiling. I16what I had just learned, and when someone passed me and gave me a(n)17, I smiled at him. He looked puzzled.

    Now I know a smile is a small thing, but what if we were all to try to smile a few more times each day? I couldn't believe how18I felt. Nothing in my life had changed,19maybe it had. What I had learned was that such a small thing could20not only my spirits, but also the spirits of those around me. So smile!

—Yes. I can work it out     .

A small family approached. The daughter was young and pretty. Her name was Blair, and she was obviously leaving. Her parents were not. The three gazed at the crowd and began their wait. Blair was twenty-three, fresh from graduate school with a handsome resume (简历) but not ready for a career. A friend from college was in Africa as a volunteer for Peace Work, which had inspired Blair to devote the next two years to helping others. Her assignment was in eastern Peru, where she would teach primitive little children how to read. She would live in a hut with no modern conveniences, no electricity, no phone, and she was anxious to begin her journey.

The flight would take her to Miami, then to Lima, then by bus for three days into the mountains, into another century. For the first time in her young and sheltered life, Blair would spend Christmas away from home.

Luther, her father, was sad that Blair was leaving. The goodbyes had all been said. "Are you sure this is what you want?" had been asked for the hundredth time. Then, the first announcement was made, the one asking those in first class to come forward.

"I guess we'd better go," Luther said to his daughter, his only child. They hugged again and fought back the tears. Blair smiled and said, "The year will fly by. I'll be home next Christmas."

Nora, her mother, bit her lip and nodded and kissed her once more. "Please be careful," she said because she couldn't stop saying it.

"I'll be fine."

They released her and watched helplessly as she joined a long line and inched away, away from them, away from home and security and everything she'd ever known. They turned and got into endless sadness.

    The auction(拍卖)took place on a mild morning. 1 , standing in front of an expectant 2 with a sign with his pig's picture, 15-year-old Wayion Klitzman was sweating.

    Waylon called his pig "Roo". The farm boy hoped the money from Roo's 3 would help with cancer research.

    It started with a 4 .

    In August 2017, Wayion 5 9th grade and in those first weeks of school, Wayion 6his algebra teacher, Kim Katzenmeyer, for support. Their special 7 grew over the last school year. "She saw the 8 in me and we just connected that way," said Wayion.

    Then Katzenmeyer's niece was diagnosed with neuroblastoma, a rare cancer that mostly 9children. After months of watching her niece receive cancer treatments, Katzcnmcyer 10her teaching job to volunteer full time at the cancer research charity, Beat NB.

    Katzenmeyer meant a lot to Wayion and he just wanted to 11 . Then he had an 12to auction his pig to 13 money for the cancer charity. So before the auction day, Wayion sent letters to people explaining his 14 to sell his pig and donate the profits to Beat NB. The letter 15 his beloved teacher whose niece was battling cancer.

    The auction turned out to be particularly 16 . Buyers kept 17 Way Ion's pig so he could sell it over and over. Wayion had thought that, with luck, his pig would bring in 18 over $ 600. In the end, Roo fetched more than $ 10,000 for Beat NB.

    "We give back to the community 19 we can. We are blessed to be able to be doing what we do," said one of the buyers with a 20 of pride.

Sea Life Melbourne Aquarium (水族馆)

    The all-new Sea Life Melbourne Aquarium, situated in the heart of Melbourne's CBD, is one of Victoria's leading visitor attractions and an unforgettable outing for the whole family. Having 12 amazing zones of discovery, Sea Life Melbourne Aquarium is the very place that you cannot miss when you visit the city.

* Opening Times

    Sea Life Melbourne Aquarium is open from 9:30 am until 6:00 pm every day of the year, including public holidays. Last admission is at 5:00 pm, one hour before closing.

* Location (位置)

    Sea Life Melbourne Aquarium is located on the corner of Flinders Street and King Street, Melbourne. It is situated on the Yarra River, opposite Crown Entertainment Complex.

* Getting to Sea Life Melbourne Aquarium

Train

    The Sea Life Melbourne Aquarium train stop is located on the free City Circle Tram route (公交线路) and also routes 70 and 75. City Circle trams run every 10 minutes in both directions.

Shuttle Bus

    The Sea Life Melbourne Aquarium is a free bus service, stopping at key tourist attractions in and around the City. Running daily, every 15 minutes from 10:00 am to 4:00 pm.

Car Parking

    While there is no public car parking at Sea Life Melbourne Aquarium, there are several public car parking lots available only a short walk away.

* Wheelchair Access

    Sea Life Melbourne Aquarium provides people in wheelchairs with full access to all 12 zones. Each floor also has wheelchair accessible toilets.

* Terms

    Tickets will be emailed to you immediately after purchase or you can download and print your ticket once payment has been accepted. Please print out all tickets purchased and present at the front entrance of Sea Life Melbourne Aquarium. No ticket, no entry!