No poem should ever be discussed or “analyzed”，until it has been read aloud by someone，a teacher or a student．Better still，perhaps，is the practice of reading it twice，once at the beginning of the discussion and once at the end，so the sound of the poem is the last thing one hears of it．

    All discussions of poetry are，in fact，preparations for reading it aloud，and the reading of the poem is，finally，the most telling “interpretation” of it，suggesting tone，rhythm，and meaning all at once．Hearing a poet read the work in his or her own voice，on records or on film，is obviously a special reward．But even those aids to teaching can not replace the student and the teacher reading it or，best of all，reciting it．

    I have come to think，in fact，that time spent reading a poem aloud is much more important than “analyzing” it，if there isn't time for both．I think one of our goals as teachers of English is to have students love poetry．Poetry is “a criticism of life” and “a heightening(提升)of life”．It is “an approach to the truth of feeling”，and it “can save your life”．It also deserves a place in the teaching of language and literature more central than it presently occupies．

    I am not saying that every English teacher must teach poetry．Those who don't like it should not be forced to put that dislike on anyone else．But those，who do teach poetry must keep in mind a few things about its essential nature，about its sound as well as its sense，and they must make room in the classroom for hearing poetry as well as thinking about it．

    Reading can be a social activity. Think of the people who belong to book groups. They choose books to read and then meet to discuss them. Now the website BookCrossing.com turns the page on the traditional idea of a book group.

    Members go on the site and register the books they own and would like to share. BookCrossing provides an identification number to stick inside the book. Then the person leaves it in a public place, hoping that the book will have an adventure, traveling far and wide with each new reader who finds it.

    Bruce Pederson, the managing director of BookCrossing, says, “The two things that change your life are the people you meet and books you read. BookCrossing combines both.”

    Members leave books on park benches and buses, in train stations and coffee shops. Whoever finds their book will go to the site and record where they found it.

    People who find a book can also leave a journal entry describing what they thought of it. E-mails are then sent to the BookCrossers to keep them updated about where their books have been found. Bruce Peterson says the idea is for people not to be selfish by keeping a book to gather dust on a shelf at home.

    BookCrossing is part of a trend among people who want to get back to the “real” and not the virtual(虚拟). The site now has more than one million members in more than one hundred thirty-five countries.

    Now is the best time for Hong Kong shopping lovers, as most shops and markets are having their seasonal sales. With the same amount of money, you can find different kinds of goods in this city. Women, young and old, rarely resist the attraction of this shopping paradise(乐园) at this time of year. Lovers will surely have an exciting Christmas and New year's Eve celebrations at the Time Square or in the western styled bars. Spending your holiday in Hong Kong will be easy too, as several packing tours are available from CZL Travel Service, with four-day tours for less than 15,000 yuan.

    Tour package 1(3,200 yuan): a 4-day-tour including three nights' accommodation(住宿), science helicopter flight, night ferry tour of Victoria Harbor and shuttle bus to the park to view the city at night.

    Tour package 2(1,880yuan): a 4-day-shopping tour including three nights' accommodation, tour to Golden Beach and the Vex work Museum, shuttle bus to the Peak and shopping opportunities.

    Tour package 3 (1,480 yuan): a 4-day-DIY-tour including three nights' accommodation in a four-star hotel and total freedom to do what you want, when you went.

    Recent summer temperatures in parts of Australia were high enough to melt asphalt. As global warming speeds up the heat and climatic events increase, many plants may be unable to cope. But at least one species of eucalyptus tree can resist extreme heat by continuing to “sweat” when other essential processes stop, a new study finds.

    As plants change sunlight into food, or photosynthesize (光合作用), they absorb carbon dioxide through pores on their leaves. These pores also release water via transpiration(蒸腾), which circulates nutrients through the plant and helps cool it by evaporation(蒸发). But exceptionally high temperatures are known to greatly reduce photosynthesis—and most existing plant models suggest this should also decrease transpiration, leaving trees in danger of fatally overheating. Because it is difficult for scientists to control and vary trees' conditions in their natural environment, little is known about how individual species handle this situation.

    Ecologist John Drake of the S.U.N.Y. College of Environmental Science and Forestry and his colleagues grew a dozen Parramatta red gum (Eucalyptus parramattensis) trees in large, climate-controlled plastic pods that separated the trees from the surrounding forest for a year in Richmond, Australia. Six of the trees were grown at surrounding air temperatures and six at temperatures three degrees Celsius higher. The researchers withheld (扣留) water from the surface soil of all 12 trees for a month to imitate a mild dry spell, then induced a four-day “extreme” heat wave: They raised the maximum temperatures in half of the pods（three with surrounding temperatures and three of the warmer ones）— to 44 degrees ℃.

    Photosynthesis ground to a near halt in the trees facing the artificial heat wave. But to the researchers' surprise, these trees continued to transpire at close-to-normal levels, effectively cooling themselves and their surroundings. The trees grown in warmer conditions coped just as well as the others, and photosynthesis rates bounced back to normal after the heat wave passed, Drake and his colleagues reported online in Global Change Biology.

    The researchers think the Parramatta red gums were able to effectively sweat — even without photosynthesis — because they are particularly good at tapping into water deep in the soil. But if a heat wave and a severe drought (干旱) were to hit at the same time and the groundwater was exhausted, the trees may not be so lucky, Drake says.

    Other scientists call the finding encouraging. “It's definitely good news,” says Trevor Keenan, an ecologist at Lawrence Berkeley National Laboratory, who was not part of the study. “It would be very interesting to know how this translates to other species,” he adds. Drake hopes to conduct similar experiments with trees common in North America.

    See our editors' top 5 picks in print books and Kindle books, and discover our editors' picks for the best books of the year.

    # 1 Killers of the Flower Moon: The Osage Murders and the Birth of the FBI by David Grann

    In Killers of the Flower Moon, David Grami revisits a shocking series of crimes in which dozens of people were murdered in cold blood. Based on years of research and new evidence, the book is a masterpiece of narrative nonfiction.

    Kindle: $14.99 Hardcover: $ 17.37 Paperback: $15.36

    # 2 Little Fires Everywhere by Celeste Ng

    Little Fires Everywhere explores the weight of secrets, the nature of art and identity, and the fierce pull of motherhood and the danger of believing that following the rules can avoid disaster,

    Little Fires Everywhere is the perfect gift for the holidays!

    Kindle: $13.99 Hardcover: $ 20.96 Paperback: $ 12.95

    # 3 Bear Town by Fredrik Backman

    It is a novel about a forgotten town bothered by scandal and the amateur hockey team that might just change everything into a better place. Winning a junior ice hockey championship might mean everything to the residents of Beartown.

Kindle: $10.99 Hardcover: $ 12.95

    # 4 Exit West by Mohsin Hamid

    Profoundly intimate and powerfully inventive, Exit West tells an unforgettable story of love, loyalty, and courage that is both completely of our time and for all time.

Kindle: $12.99 Hardcover: $ 15.73 Paperback: $11

    # 5 Homo Deus: A Brief History of Tomorrow by Yuval Harari

    Yuval Noah Harari, author of the international phenomenon Sapiens, returns with an equally original and attractive book, turning his focus toward humanity's future, and our quest to upgrade humans into gods.

    Kindle: $17.99 Hardcover: $ 28.95 Paperback: $22.99

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    The secret to living longer could be as simple as picking up your walking pace, according to a new study. Researchers from the University of Sydney found that walking at a brisk (快的) or fast pace was associated with a risk reduction of 24 percent for any cause of death.

    This effect was even more obvious in older age group, with fast walkers over the age of 60 reducing their risk of death by a surprising 53 percent. Professor Emmanuel Stamatakis, who led the study, explained, "A fast pace is generally five to six kilometers per hour, but it really depends on a walker's fitness levels; an alternatives indicator is to walk at a pace that makes you slightly out of breath or sweaty."

    In the study, the researchers looked at the results of 11 surveys from 1994 to 2008, in which participants recorded their walking pace, as well as age, sex and BMI. The analysis showed that walking at an average pace was associated with a 20 percent risk reduction for all-cause mortality (死亡率) compared with walking at a slow pace, while walking at a brisk or fast pace was associated with a risk reduction of 24 percent.

    The researchers hope the findings will encourage the development of public health message about the benefits of walking pace. Professor Stamatakis added, "These analyses suggest that increasing walking pace may be a straightforward way for people to improve heart health and risk for premature mortality—providing a simple message for public health campaigns to promote.

    "Especially in situations when walking more isn't possible due to time pressures or a less walking-friendly environment, walking faster may be a good option to get the heart rate up—one that most people can easily add to their lives."