From The 12 Days of Christmas to See You in the Cosmos, these children's books are ideal for holiday giving.

    The 12 Days of Christmas by Greg Pizzoli

    It's a classic Christmas reading material! It's a counting lesson! It's a crazy tale of elephant love. Have you ever wondered how all those calling birds, turtle doves and French hens fit in one room? Pizzoli, a Theodor Seuss Geisel Award winner has your answer. ($ 15.99, ages 3—5) Amazon. com

   Here We Are by Oliver Jeffers

    Yes, this book by the illustrator (插画家) of the great hit “The Day the Crayons Quit” is for kids ages 3—7, but don't let that fool you.     Inspired by the birth of Jeffers1 first child, this is a father's “welcome to the earth” letter to his baby, filled with the heady wonder of parenthood .A great gift for new parents. ($ 19.99. ages 3—7) Amazon. com

    Wishtree by Katherine Applegate, illustrated by Charles Santoso.

     When a towering oak tree learns that she may be cut down, she starts getting extraordinarily involved in the lives of the humans below her, particularly a girl who is being escaped due to her ethnicity (种族). A lovely tale about common ground and the power of community. ($ 16.99, ages 8 —12) Amazon. com

     See You in the Cosmos by Jack Cheng

    Eleven-year-old Alex is too busy trying to communicate with space aliens to worry about his troubled family life. When Alex runs away from home to launch his homemade rocket, he finds himself sidetracked by new friends and hints of a family secret. ($ 16.99, ages 10 and up) Amazon. com

    Many people drink coffee to quickly increase their energy. Scientists say there may be another reason to drink coffee. They studied the link（联系）between coffee drinking and the risk of death from some diseases, and found that drinking moderate（适量的）amounts of coffee each day may help protect against heart disease, cancer and other diseases. David Jacobs of the University of Minnesota in Minneapolis worked on the study with researchers from the University of Oslo.

    The researchers used information about 27,300 women. They were between 55 and 69 years of age when they entered the study. During a fifteen-year period, almost 15.75% of them died. The researchers found a link between the amount of coffee the women reported drinking and their risk of dying from heart disease. Coffee drinking was measured in cups. One cup is about 225 grams.

    There was a reduced risk of death from heart disease among women who drank from one to three cups of coffee each day. A reduction（减少）in the risk of death from other diseases was also seen. But Professor Jacobs says the risk reduction for death from heart disease decreased in women who drank more than three cups a day.

    The researchers say antioxidants（抗氧化剂）in coffee might reduce the risk of heart disease. Earlier studies found that coffee has high levels of antioxidants. Antioxidants have been shown to help prevent heart disease, cancer and other diseases.

    Recently, American President Trump announced his budget. One of the budgets would cut all funding to the Institute of Museum and Library services and libraries across the United States. However, as far as I'm concerned, we need to save our libraries.

    Libraries provide books and after-school programs for children. They encourage literacy (识字）with summer programs. They help inspire a life-time love of learning and reading in children of all ages. Without them, where will kids with no Internet at home do their homework? Where will kids have a place to study or borrow books after school? Therefore, we need libraries for our kids. We need them so that kids can grow up with a place, other than school, where learning and exploration is encouraged. For adults, libraries serve as a place where they can use the Internet to apply for jobs, get job training, early voting centers as well as book clubs to help make new friends. It can also serve as a place to pick up a book and learn something new. What's more，they can also borrow a book and get away from it all.

    Libraries save our information for the next generation. When we live in an age of alternative (选择性的）facts, where science is ignored in favor of personal feelings, we need libraries now more than ever. We need them to educate ourselves on the facts and hold the government responsible for them. We need them to have strong public participation(参与).

    If you agree with me，you shouldn't be silent on this issue. You can write or call directly to tell the president to save our libraries. You can also write to both your state Senators (参议员）and your district representative. If you do not know who they are, you can find out here. Let them know this is a beneficial issue because all people use public libraries in their daily life.

    For centuries, dolphins have got our admiration, and it is easy to see why. They are beautiful, cute and smart sea animals. Dolphins are not fish, but warm-blooded animals. They live in groups, and speak to each other in their own language. In this way, they are like other animals, such as bees and birds. But dolphins are very different from almost all land animals. It is said that dolphins are the world's second brightest creatures after humans and have many brain features related to intelligence. Their brain is nearly the same size as our own, and they live a long time at least twenty or thirty years.

    Like some animals, dolphins use sound to help them find their way around. They also make these sounds to talk to each other and to help them find food. We now know they do not use their ears to receive these sounds, but the lower part of the mouth, called the jaw.

    Strangely, dolphins seem to like man, and for thousands of years there have been stories about the dolphin and its friendship with people.

    There is a story about sailors in the 19th century. In a dangerous part of the sea off the coast of New Zealand, they learnt to look for a dolphin called Jack. From 1871 to 1903, Jack met every boat in the area and showed it the way. Then in 1903 a passenger on a boat called The Penguin shot and wounded Jack. He recovered and for nine years more continued to guide all ships through the area－except for The Penguin.

    Today, some people continue to kill dolphins, but many countries of the world now protect them and in these places it is against the law to kill them.

    After moving to the United States, immigrant groups trying to fit in tend to choose high calorie fatty foods in an attempt to appear more American, a new study finds. That's one reason why immigrants approach US levels of obesity within 15 years of moving to America.

The researchers also did an experiment that measured whether or not the threat of appearing un-American influenced respondents' food choices. After being questioned about their ability to speak English 75 percent of Asian-Americans identified a typical American food as their favorite. Only 25 percent of Asian-Americans who had not been asked if they spoke English did the same.

    When their American identity was called into question during a follow-up study, Asian-American participants also tended to choose typical American dishes, such as hamburgers and cheese sandwiches.  In that experiment, 55 Asian-Americans were asked to choose a meal from a local Asian or American restaurant. Some participants were told that only Americans could participate in the study. Those who chose the more typical American fare ended up consuming an extra 182 calories,  including 12 grams of fat and 7 grams of saturated fat (饱和脂肪).

    "People who feel like they need to prove they belong to a culture will change their habits in an attempt to fit in," said Sauna Cheryan, an author of the study and assistant professor of psychology at the University of Washington.

    "If immigrants and their children choose unhealthy American foods over healthier traditional foods across their lives, this process of fitting in could lead to poorer health." Cheryan added.

    Social pressures, the study concluded, are at the heart of the problem.  "In American society today, being American is associated with being white. Americans, who don't fit this image even if they were born here and speak English, feel that pressure to prove that they're American," said Cheryan.

    Garbage sorting has become a hot issue around China, especially after Shanghai began carrying out a regulation on July 1.

    Beijing, as a forerunner in environmental protection, has thus been expected to follow suit. The capital of the country has long been campaigning for sorting and recycling household waste, as part of its environmental drive for sustainable growth, local media reported.

    The current regulation gives garbage sorting responsibilities to government departments, property management groups and other organizations. It also gives rules for companies, outlining how they're responsible for waste collection, transportation and treatment. Only individuals are not subject to responsibilities.

    The long-awaited revision will soon change the situation, "Taking out the trash without sorting it properly will be illegal," said Sun Xinjun, director of the Beijing Commission of Urban Management. In Shanghai, violators are now fined up to 200 yuan ($30)for trash-sorting violations. The maximum fine in Beijing will not be less than that, he said.

    The Beijing city government first set out to promote garbage sorting in 2009. Authorities have since called on citizens to sort their household waste into four types-recyclable waste, kitchen trash, dangerous waste and others-and leave it in a corresponding dustbin or trash can. Blue-colored dustbins signify items within are recyclable, green represents kitchen trash, red corresponds to dangerous materials and grey to other waste.

    To promote the awareness of garbage sorting and expand the base of participants, authorities have employed workers to help residents on the spot. With intelligent devices, those who throw in recyclable waste at given sites will be rewarded with bonus points, which can be used to buy daily goods. At some communities, there are no color-coded dustbins. Instead, a scheduled garbage collection service is offered to help improve the environment. In other communities, workers offer a door-to-door service to collect recyclables or kitchen waste.

    Beijing Environmental Sanitation Engineering Group has been promoting new garbage sorting facilities such as recycling cabinets and smart kitchen waste trash cans since 2016, Xinhua News Agency reported. Nearly 26,000 metric tons of household waste is generated across Beijing on a daily basis and 29 terminal garbage disposal facilities are working at full capacity. Nearly 9.3 million tons of household waste was processed in the city last year.