Most people know that Marie Curie was the first woman to win the Nobel Prize, and the first person to win it twice. However, few people know that she was also the mother of a Nobel Prize winner.

    Born in September, 1987, Irene Curie was the first of the Curies' two daughters. Along with nine other children the parents of whom were also famous scholars, Irene studied in their own school, and her mother was one of the teachers. She finished her high school education at the College of Sévigné in Paris.

    Irene entered the University of Paris in 1914 to prepare for a degree in mathematics and physics. When World War I began, Irene went to help her mother, who was using X-ray facilities (设备) to help save the lives of wounded soldiers. Irene continued the work by developing X-ray facilities in military hospitals in France and Belgium. Her services were recognised in the form of a Military's Medal by the French government.

    In 1918, Irene became her mother's assistant at the Curie Institute. In December 1924, Frederic Joliot joined the Institute, and Irene taught him the techniques required for his work. They soon fell in love and were married in 1926. Their daughter Helene was born in 1927 and their son Pierre five years later.

    Like her mother, Irene combined family and career. Like her mother, Irene was awarded a Nobel Prize, along with her husband, in 1935. Unfortunately, also like her mother, she developed leukemia because of her work with radioactivity (辐射能). Irene Joliot-Curie died from leukemia on March 17, 1956.

    On 29 May last year, I was doing my swim training for a half Ironman race in the bay near my home.

    I was finishing my first loop (圈) when I felt jaws coming around my body and a sharp pain. The water was dark, so I couldn't see anything. It just came out of nowhere and then it was gone in a flash. I knew it was something really big and assumed it was a shark. I panicked, but knew I needed to get out of the water. I was kicking wildly in case it came back. There was a lifeguard boat close by, so I waved my arms in the air and screamed for help. It got to me within 20 seconds. At that point I didn't feel anything; adrenaline (肾上腺素) had taken over. The lifeguards held me under the arms and pulled me up out of the water. Then the pain kicked in and it was pretty hard to bear. Some muscle had been bitten off my right arm. I felt a lot of warm, gushing blood.

    My chest felt heavy, as if someone had put their foot on it, and I was having trouble breathing. It was extremely painful. When I got to the hospital, I told the nurses to put me to sleep because of the pain. I just wanted them to fix me.

    I woke up after surgery four hours later. My doctor was amazed when I managed to move my fingers: the bite just missed a major nerve. My right lung had been damaged; I had several broken bones and a nerve in my leg was cut, so I have reduced feeling at the top of my leg. The shark also bit through my upper back muscle.

    Local experts determined that the shark was probably 9-10 feet long. It was young, about seven years old. It just attacked me, left and didn't come back because it figured I wasn't food.

根据短文内容，选择最佳答案，并将选定答案的字母标号填在题前括号内。

    AEA summer camp is an American-style day camp which follows a weekly theme. Themes are changed each week and each year to combine current trends and interests of children.

    Waikiki Sun & Sandbuckets of Fun (Week 1)

    Join Camp Adventure In a Polynesian Paradise! Come and move your toes in the soft white sand and listen to the symphony of a Seashell Band. It's great to be in Waikiki, where there's surf and sand. We'll drive and find various fish all around the island shore. It's Wet! It's Wild! It's Wonderful Waikiki Fun!

    Stars-spangled Spirit Spectacular (Week 2)

    It's a stars-spangled celebration across the nation! Join the old-fashioned ice cream social, play a double-header at the field of dreams, and learn about some heroes and founding fathers of America. Sparks (火花) will fly at your fantastic finale (结尾), as fireworks explode red, white and true blue.

    Amazing Adventures to the Outer Limits (Week 3)

    It's your time to shine as you join our Camp Adventure planetary race through outer space. See wonderful scenes as we take a spin around the solar system. Learn the order of the planets, hunt for moon rocks and chart your own course for a future space mission (任务). Join your favorite Star Wars friends as you journey on your unusual expedition to the outer limits.

Dear Mom and Dad,

    I'm afraid I have some very bad news for you. I have been very naughty and the school master is very angry with me. She is going to write to you. You must come and take me away from here. She does not want me in the school any longer. The trouble started last night when I was smoking a cigarette in bed. As I was smoking, I heard footsteps coming towards the room .I did not want a teacher to catch me smoking, so I threw the cigarette away. Unfortunately, the cigarette fell into the waste--paper basket. It caught fire.

    There was a curtain near the waste --paper basket. It caught fire too. Soon the whole room was burning. The master phoned the fire brigade. The school is a long way from the town and before the fire brigade arrived, the whole school was on fire. The master said that the fire was all my fault and I must pay for the damage. She will send you a bill for about a million dollars.

    I'm very sorry for this.

    Much love

Sarah

    It's fun to dream about vacationing in Europe, but international flights are not always particularly affordable. If you're looking to experience a taste of European culture, however, there are many places in the US with a European heritage (传统).

    Founded by Spanish settlers in 1565, St. Augustine is full of Spanish-inspired architecture, historical sites and other attractions. The Colonial Quarter is a popular tourist area, and there are many places to grab traditional Spanish food.

    Holland, Michigan

    Holland was settled in 1847 by Dutch Calvinist separatists, under the leadership of Dr Albertus van Raalte. Terrible economic conditions in the Netherlands forced them to emigrate (移居国外), while their desires for religious freedom led them to unite and settle together as a group. Much of the original architecture was destroyed in an 1871 fire, but the city still has many windmills, eateries, art and even an annual tulip festival and holiday market.

    New Glarus, Wisconsin

    More than 160 years after it was founded, New Glarus has maintained much of its Swiss heritage and old world traditions. New Glarus' Swiss immigrant roots are proudly on display with its Alpine architecture, Swiss Historical Village Museum and Yodel Club. The Wisconsin village also puts on cultural events like the Heidi Folk Festival and Swiss Volksfest.

    Solvang, California

    Located near Santa Barbara, Solang is a charming California city with Danish roots.  A group of immigrates from Denmark founded Solvang just over 100 years ago to create a Danish home away from home. As such, the city is full of Danish architecture, restaurants, shops and even a copy of Copenhagen's famous Little Mermaid statue.

Some people today might be early risers because of DNA they take after Neanderthals tens of thousands of years ago, suggests new research.

When early humans migrated from Africa to Eurasia roughly 70, 000 years ago, some of them mated with Neanderthals, who had already adapted to the colder, darker climates of the north. The ripple(涟漪) effects of that inter mating still exist today：Modern humans of non-African ancestry(血统) have between 1 and 4 percent Neanderthal DNA. Some of that DNA relates to sleep more specifically, the internal body clock known as the circadian rhythm.

For the new study, researchers compared DNA from today's humans and DNA from Neanderthal fossils(化石) .In both groups, they found some of the same genetic variants involved with the circadian rhythm. And they found that modern humans who carry these variants also reported being early risers.

For Neanderthals, being "morning people" might not have been the real benefit of carrying these genes. Instead, scientists suggest, Neanderthals' DNA gave them faster, more flexible internal body clocks, which allowed them to adjust more easily to annual changes in daylight. This connection makes sense in the context of human history. When early humans moved north out of Africa, they would have experienced variable daylight hours—shorter days in the winter and longer days in the summer-for the first time. The Neanderthals' circadian rhythm genes likely helped early humans' offspring(后代) adapt to this new environment.

Notably, the findings do not prove that Neanderthal genes are responsible for the sleep habits of all early risers. Lots of different factors beyond genetics can contribute, including social and environmental influences. The study also only included DNA from a database called the U.K. Biobank-so the findings may not necessarily apply to all modern humans. Next, the research team hopes to study other genetic databases to see if the same link holds true for people of other ancestries. If the findings do apply more broadly, they may one day be useful for improving sleep in the modern world, where circadian rhythms are disturbed by night shifts and glowing smartphones.