Research finds out why some people are constantly under attack from the bloodsucking insects while others walk free.

    For those unfortunate enough to feature highly on the mosquito hit list, summer nights can be synonymous with mosquito bites. Yet others hardly ever get bitten. So how do the bloodthirsty insects select their victims?

    The insects' tastes may seem arbitrary. However, research shows that when mosquitoes make their choices between potential victims, it all comes down to scent (气味).

    “Mosquitoes are attracted by carbon dioxide and heat, which everyone gives off. But mosquitoes are also attracted by certain scents,” says Karl-Martin Vagn Jensen, the head of research at the Department of Agricultural Science at Arhus University.

    According to Jensen, it has not yet been confirmed exactly what the scents in question are. But research does indicate that some scents are more attractive to mosquitoes than others.

    “All the lab employees rubbed petri dishes (培养皿) against their stomachs. In that way, their scents were put on the dishes, which were then put in a container full of mosquitoes,” he says. “The mosquitoes repeatedly landed on some of the petri dishes, but didn't go anywhere near the others.”

    Perhaps taking inspiration from popular fiction, there are also those who consider garlic as an excellent repellent (驱虫剂) against the winged bloodsuckers. According to the researcher, this strategy may not be entirely fruitless. “As far as I know, there is no scientific proof that eating garlic works. But there may be something to the theory that it's possible to mask scent with garlic,” he says. The only reliable method of protection against mosquitoes is to use repellents that are sold over the counter. It contains some smells that can confuse the mosquitoes. When the mosquito comes closer, it uses smell, heat and carbon dioxide to decide whether to bite. But if it is confused by a repellent, it will never get that far.

    Alexander John Jordan was born in Madison, Wisconsin in 1914. After graduating from high school, he attended the University of Wisconsin. After about one year of college, Alex dropped out.

    Alex then went from job to job. He drove a taxi and worked for Royavac. He also worked for his father's construction company, where Alex got his basic knowledge of construction.

    In the 1940s, Alex discovered Deer Shelter Rock and began having small picnics on the top of the rock. He then started bringing his tent and camping out. One night, his tent got blown away and from that day, Alex decided he wanted to build something more stable. That was the beginning of his dreams. Alex started off by renting the rock and a bit of land around it from a local farmer. He first built a small studio with a fireplace. Then Alex, with his parents' help, bought 240 acres of land, so he could build as he pleased. What took shape on and around Deer Shelter Rock was truly a wonderful achievement. More wonderful still is the fact that he built much of the original house by himself, carrying the materials up the 75-foot-high rock.

    As curiosity grew surrounding his project, more and more people came to visit the House on the Rock. Alex decided to charge people 50 cents to visit, thinking that would drive them away; however, people gladly paid the fee. In 1960, Alex decided to open the House on the Rock to the public. This increased the interest and the crowds grew. All of the money taken in over the years was put directly back into the House. Alex was devoted to the House on the Rock. It was his life and dream.

Open Letter to an Editor

I had an interesting conversation with a reporter recently — one who works for you. In fact, he's one of your best reporters. He wants to leave.

    Your reporter gave me a copy of his resume(简历) and photocopies of six stories that he wrote for you. The headlines showed you played them proudly. With great enthusiasm, he talked about how he finds issues(问题), approaches them, and writes about them, which tells me he is one of your best. I'm sure you would hate to lose him. Surprisingly, your reporter is not unhappy. In fact, he told me he really likes his job. He has a great assignment (分工), and said you run a great paper. It would be easy for you to keep him, he said. He knows that the paper values him. He appreciates the responsibility you've given him, takes ownership of his profession, and enjoys his freedom.

    So why is he looking for a way out?

    He talked to me because he wants his editors to demand so much more of him. He wants to be pushed, challenged, coached to new heights.

    The reporter believes that good stories spring from good questions, but his editors usually ask how long the story will be, when it will be in, where it can play, and what the budget is.

    He longs for conversations with an editor who will help him turn his good ideas into great ones. He wants someone to get excited about what he's doing and to help him turn his story idea upside down and inside out, exploring the best ways to report it. He wants to be more valuable for your paper. That's what you want for him, too, isn't it?

    So your reporter has set me thinking.

Our best hope in keeping our best reporters, copy editors, photographers, artists — everyone — is to work harder to make sure they get the help they are demanding to reach their potential. If we can't do it, they'll find someone who can.

    Diana Ross, American pop singer and actress, achieved international popularity, first as the leader singer of the Supremes and later as a solo(独唱的) artist. Diana Ross was born on March 26, 1944, in Detroit, Michigan. She was the second of six children of Fred and Ernestine Ross, who lived in one of Detroit's poor districts. Because her family were closely connected with each other, Ross almost didn't notice the difficult life as she grew up.

    Ross professional career began in 1959, when she joined several neighborhood friends to form the Primettes. The group was renamed the Supremes after signing a recording contract (合同) with Motown late the following year. The group produced many number-one hit singles (热门单曲) on the US Billboard hot 100, including Baby Love, Stop! In The Name of Love and Someday We Will Be Together. In 1967, the group was renamed Diana Ross and the Supremes, foreshadowing（预示） Ross' solo career, which she started in 1970.

    Beginning with Ain't No Mountain High Enough from her first solo album, Ross enjoyed more than ten years of great success with her hit singles. Ross also developed a film-acting career in the 1970s, beginning with a starring role as blues singer Billie Holiday in Lady Sings the Blues and continuing with Mahogany, for which she also recorded the theme song Do You Know Where You're Going To.

    However, in the mid-1980s, Ross saw her career begin to wane. Most of her albums were re-recordings of earlier material. In 2006, she produced I Love You, a collection of love songs by many artists, and she started an energetic concert tour the following year to make the album publicly known. Although you can't find her songs on the US Billboard Hot 100 now, Ross remains popular as one of the leading musical performers of all time.

I often wondered what it would be like to have cancer.

I didn't expect to find out, though, at last not for decades. I have always been healthy and strong; I regularly do hot yoga and swim two kilometers in a bay near my home in Sydney.

But now I know: it felt as if I was carrying a baby. Tumors (肿瘤) that silently grew inside me suddenly became bigger one weekend.

Then, one Saturday in June, I was struck with sharp pain and ended up in the hospital.

My doctor said it might be very serious. I spent two weeks waiting for the operation, not knowing if I'd live to the end of the year.

In the days before the operation, I turned off my phone and computer. I prayed so hard that I grew unnaturally calm.

The operation lasted five hours. The mass was fully removed, but it was unexpectedly complicated. I was in special care for eight days, in the wires, machines, with pipes in my lungs and liver.

Luckily, the operation was very successful and I am slowly growing stronger. I am walking upright again and waking without great pain. I can now drive, and am preparing to return to work. My prognosis (预后) is good, but I will need to live with the fear of return.

Everyone suddenly seems consumed with foolish worries. I have a different idea about the complaints posted by some Internet users who had the flu, were upset by the upcoming exams or burdened by work. I want to scream: BUT YOU ARE ALIVE! Alive! Each day is a gift, especially if you are upright and able to move with ease, without pain.

I'm still struggling with what all of this means. But in this short time, a truth became even clearer to me.

We should not have to move to the woods like Henry David Thoreau to "live meaningfully". It would be impossible and frankly tiring to live each day as if it were your last. My doctor asked me a few days ago how I became so calm before the operation. I told her: I prayed; I locked out negativity and drew my family and friends near; I tried to live meaningfully.

She said, "Actually you should do that for the rest of your life."

Whenever our teachers or parents asked about our hobbies at childhood, my friends and I would always express our love for reading. However, with the development of high technology, our lives are gradually 1 by electronic screens of all sizes. They attract our attention like magnets（磁铁）and gradually 2 us from the world of books.

There was a time when I felt like my life went downhill, and with increased 3 from school, physical tiredness and emotional burdens（负担）, I had to watch short 4 to distract（分散）myself from those troubles.

This situation changed when one day I 5 a book called The Grapes of Wrath by a US writer. When I opened the cover and started reading, I felt like being hit 6 on my head. The wonderful story and beautiful writing attracted me. Although the characters in the book face 7 survival challenges, they still try to live in hard times and struggle for their dreams. This 8 spirit deeply inspired me, allowing me to gradually 9 my confidence in the future.

Now I carry this book either at the dining table or during school breaks. As a student who has a（n）10 of making films, this book also gave me creative 11 . The historical scenes described in the book and the deep human nature 12 within opened a door to the hall of art for me, allowing me to understand that reading cannot only 13 the spirit, but also cause creativity.

Why should we choose to ignore（忽视）such 14 like this book? Finally, I would like to appeal to my peers to protect our eyes and minds, and make 15 choices between books and screens.