Devon, 17, is used to paying her own cell phone and car expenses. But lately it's been harder. The family she baby-sits for hasn't been calling as much as usual and she couldn't find a job over the summer. Devon's dad said it's a sign of the tough economy. He told her he's feeling the pinch too and that he had to use her college fund to pay the loan(货款).

    This kind of money troubles isn't strange to common families these days. In fact, it's hard to avoid news about the economy on the screen of the TV or the computers recently. It can seem a bit worry and some families are hit really hard.

    For most people, the big problem is that things cost more at a time when they have less money to spend. But higher prices aren't the only problem. Many people are having a tough time making payments on some types of home loans.

    Therefore, some families are cutting back on what they spend.  For example, eating out less, staying home instead of going on vacation, moving to a less expensive house and so on.

    However, as discouraging as things may seem now, the good news is that the economy always gets back on track after a while. Jobs may be hard to find, but the slow economy can open up new opportunities. The couple Devon babysat for might cut back on evening's out, but they could be interested in hiring her for after-school care. Perhaps it's time to sell her old toys and baby gear (设备)in the basement(地下室) or help others sell these items online if she is good at it. She could charge them a fee to sell their old stuff(东西).

    Should you work out in the gym in the morning instead of in the evening? It all depends. Of course, there are advantages of working out(运动) in the morning.

    You will increase your energy for the rest of the day. “Morning workouts result in better energy levels throughout the day and give you more mental sharpness,” says Dr. Cedrie Byrant, Chief Science Officer of the American Council on Exercise.

    Here is another advantage. In 2017, health researchers found that exercising in the morning helps you sleep better at night. According to the study, in all cases, those who exercised at 7:00am experienced about a 10 percent drop in blood pressure that carried through the rest of the day. They also had about a 25 percent drop in blood pressure at night, slept longer and had more beneficial sleep cycles than when they exercised at other times of the day.

    However, there are disadvantages, too.

    If you are not an early riser, getting out of the bed in the morning can be very difficult. Byran says that if you're not used to exercising in the morning and force yourself to get up, you may not put as much effort into the exercise as you would later in the day. Also, if you aren't careful, you can damage your sleep schedule, which can lead to insufficient sleep.

    Besides, hitting the gym before work can cause a challenge in terms of scheduling. If you work a 9-to-5 job, getting ready for work and going to work can cut your morning workout short, Byrant notes.

    To sum up, it has both advantages and disadvantages. If it suits you better to work out in the morning, you can do so.

    It was only after her death from Bright's disease on May 15, 1886 that Emily Dickinson enjoyed recognition for her poetic accomplishment. A limited volume of her works appeared in1890, but it was Thomas H. Johnson's release of her complete body of poetry that made her works receive real acclaim. He published 1,775 of her poems in 1955 in a volume entitled The Poems of Emily Dickinson.

    Emily Dickinson was born in Amherst, MA in 1830. The Dickinson family was well known in the community for their contribution to politics and education. Dickinson lived most of her life with her grandfather who was famous for having founded the Amherst Academy in1814 and later Amherst College in 1821.

    Emily Dickinson led a reclusive life, but her childhood was a happy one. She had the privilege of being educated at some of the most outstanding women schools in her time and devoted herself to reading all kinds of books.

    It was during her college years that Emily started writing. Some of her poems were published with the help of her female friends. However, the first serious attempt at having her poems published failed for her being rejected by The Atlantic magazine. This led the selfconscious poetess to believe that the public would never care for her works, and thus she never attempted to have any of her works published again. After the Civil War, Dickinson withdrew from society and had little contact outside of Amherst.

    Dickinson was very concerned with the subject of nature. Her writings are complex, and for many years scholars have searched for romantic inspiration, but have not yet understood her works. What is clear, however, is that her works can't just simply describe something in terms of a narrative style.

    Without doubt, Dickinson's works have greatly influenced and continue to influence modern poetry. In her time, her writing style was unique given that it included the use of dashes and capitalized nouns. None of her works rhymed, and she used unusual comparisons when referring to events and situations. This unconventional method of writing has made her one of the most innovative poets of the 19th century.

    Mother Teresa (August 26, 1910-September 5, 1997) was a great woman, who did a lot to improve the social condition of mankind. Due to her contribution in serving the society, she was awarded the Nobel Peace Prize aged 69.

    She was brought up in a Catholic family. When she was only seven, she lost her father. Even as a young child, she was interested in the life of missionaries (传教士). At the age of 18, she decided that she would become a nun. She left her home and went to join the Sisters of Loreto. It was the first step that she made towards providing services for mankind.

    On the 7th of October in the year 1950, Mother Teresa received Vatican permission to start the Missionaries of Charity in Calcutta, the mission of which would be to take care of the needy, the homeless, and people who were shunned by the society. Then it had a number of branches all over the country. The journey of Mother Teresa's Missionaries of Charity started with the setting up of homes for "the Dying".

    In the year 1983, Mother Teresa suffered from a serious heart attack, while she was in Rome. However, she recovered. But, later in 1989, she again got an attack. Her health went worse and in the year 1991, she suffered from pneumonia. Taking her health problems into consideration, Mother Teresa decided to resign (辞职) from the post of head of the order.

    A secret vote was conducted in which all the nuns voted for the stay of Mother Teresa except herself. So, she agreed to continue serving as head of the Missionaries of Charity. Day by day her health was getting worse. On September 5, 1997, exactly nine days after her 87th birthday, this great soul departed for heaven.

    In 1963, at age 65, my grandfather, Erwin, decided to build a new house. He wasn't quite sure what to do with the old house since it sat where the new house would be. He finally hired a powerful vehicle to push it far out into a small group of trees. That old house sits there to this very day.

    Erwin and his wife, Elida, passed away, and I purchased the farm from their estate. My wife and I raised our sons on this place and have lived here for more than 30 years. When we first moved in, my wife took one look at the deserted house and declared it a hidden danger. I agreed and planned on a large bonfire. But I thought it appropriate to check out the house first, just in case something of worth had been left behind.

    I walked through the tall grass in the meadow where the old house sat. Time had worn it out. The entrance floor had fallen down on itself and most of the windows were gone. We entered through an open window. ①Here lay the reminders of my grandparents' lives: a broken chair, some old clothes ... But the thing that drew my eye was a cardboard box stuffed with papers. I dug through its contents and was instantly transported back in time. There was a tax return from 1957. Greeting cards from old friends and relatives, now all dead and gone. An uncle's third-grade spelling book. So sweet were the memories that the old house was spared the torch.

    As we hurried through our lives, my visits grew infrequent. I might catch a glimpse of the house through the trees and remembered how, as a child, I would struggle to walk in my father's footprints. Even then, I could imagine no nobler calling than farming, just like Dad. Then, one April morning, my father was felled by a massive heart attack, at age 68. The entire family was shocked by his passing, none more than me. Why I visited that old house on a day shortly after my father's funeral is still beyond me. It was as though it were calling; even the trees seemed to whisper an invitation to come, to visit, to stay awhile.

    ②As I stood once again on that ancient floor, my eye was drawn to a pile of papers on the floor. An envelope, yellowed with age, lay on top. A blue stamp on the envelope read "Passed by Naval Censor" How could I have missed this treasure? My father had served aboard the USS Washington during World War II and had written home whenever he could. My grandmother saved all of his letters.

    I removed one letter carefully from its envelope. ③It was dated September 1944. My father would have been somewhere in the South Pacific at that time and all of 18 years old. T studied the familiar handwriting. Dad wondered how the com harvest had been. He supposed that his youngest brother was starting first grade and imagined that he was becoming quite the little man. He asked his mother to greet everyone and said that he missed them all.

    It wasn't hard to read between the lines. Here was a homesick young man, a kid really, who had spent his entire life living upon a sea of flat land grass. Now he was on a different kind of sea, an ocean that was being disturbed by the thunder and the lightning of a world at war. At the bottom of the page, my father had passed on one last message. ④Tears burned my eyes as I read those words he had so carefully emphasized: "All is well here. Please don't worry. I am doing fine."

    As I left the old house that day, I took one last glance back at it over my shoulder. I don't care what any one thinks, I decided. That old house gets to stay there until it rots into the earth.

    People have been wondering why elephants do not develop cancer even though they have lifespans (寿命) that are similar to humans, jiving for around 50 to 70 years.

    Now scientists believe they know why. A team at the University of Chicago, US has found that elephants carry a large number of genes that stop tumors (肿瘤) developing. To be precise, they found 20 copies of an anti-tumor gene called TP53 in elephants. Most other species, including humans, only carry one copy.

    According to the research, the extra copies of the gene improved the animal's sensitivity to DNA damage, which lets the cells quickly kill themselves when damaged before they can go on to form deadly tumors.

    "An increased risk of developing cancer has stood in the way of the evolution of large body sizes in many animals," the study author Dr Vincent Lynch told The Guardian. If every living cell has the same chance of becoming cancerous (癌变的), large creatures with a long lifespan like whales and elephants should have a greater risk of developing cancer than humans and mice. But across species, the risk of cancer does not show a connection with body mass.

    This phenomenon was found by Oxford University scientist Richard Peto in the 1970s and later named "Peto's paradox (悖论)”". Biologists believe it results from larger animals using protection that many smaller animals do not. In the elephant's case, the making of TP53 is nature's way of keeping this species alive.

    The study also found that when the same genes were brought to life in mice, they had the same cancer resistance as elephants. This means researchers could use the discovery to develop new treatments that can help stop cancers spreading or even developing in the first place.

    "Nature has already figured out how to prevent cancer," said Joshua Schiffman, a biologist at the School of Medicine, University of Utah, US. "It's up to us to learn how different animals deal with the problem so that we can use those strategies to prevent cancer in people."