When children start kindergarten, evident gaps in science knowledge already exist between Whites and minorities and between youngsters from upper-income and low-income families. And they often deepen into significant achievement gaps by the end of eighth grade if they are not dealt with during elementary school.

    The findings suggest that, in order for the United States to maintain(维持) long-term scientific and economic competitiveness in the world, policymakers need to renew efforts to ensure access(n.使用或见到的机会，权利) to high-quality, early learning experiences in childcare settings, preschools and elementary schools.

    The researchers' study tracked 7,757 children from their start in kindergarten to the end of eighth grade. Researchers found that, among kindergarteners with low levels of general knowledge, 62 percent were struggling in science by the time they reached third grade and 54 percent were struggling in that subject in eighth grade. And general knowledge gaps between minorities and Whites were already large at the time when students began kindergarten.

    “Children growing up in low-income families typically experience comparatively fewer early opportunities to learn about the natural and social sciences,” the authors wrote. “Their parents often have lower educational levels and therefore less science knowledge themselves as well as fewer resources available to direct the children's academic growth. Children raised in poverty often attend poorly resourced schools that futher limit their academic opportunities.”

    Morgan said that, within families, parents who regularly talk and interact with toddlers(学步的儿童) can point out and explain physical, natural and social events occurring around them daily. This might help youngsters learn facts and concepts that will prepare them to take better advantage of science instruction they receive during elementary and middle school.

    You have to shake hands when you're coming or going in Germany, but in Britain you usually only shake hands when you meet someone for the first time.

    You have to give your present in public in the Middle East to show it's not a bribe(贿赂), but it's good manners to give your present in private in Asia.

    You mustn't give cutlery（刀具） in Latin America because it suggests that you want to cut off the relationship. You mustn't give a clock in China because the Chinese word for clock is similar to the word for funeral(葬礼).

    “Come any time” means “I want you to visit me” in India. If you don't suggest a time and arrange a visit immediately, an Indian will think you are refusing the invitation.

    Offices are usually closed on Friday in Moslem countries.

    It's bad manners to discuss business at social occasion in India.

    In an English pub, you have to take your turn to buy a “round” drink for everyone in your group.

    Liverpool, my hometown, is a special city. It is so unique that in 2004 it became a World Heritage（遗产）Site.

    I recently returned to my home city and my first stop was at a museum on the River Mersey. Blanketed in mist（薄雾），Victorian architecture rose from the banks of the river, responded to the sounds of sea-birds, and appeared unbelievably charming. When I headed toward the centre, I found myself surrounded by buildings that mirror the best palaces of Europe. It is not hard to imagine why, on first seeing the city, most visitors would be overpowered by the beauty of the noble buildings, which are solid signs of Liverpool's history.

    As if to stress its cultural role, Liverpool has more museums and galleries than most cities in Britain. At Walker Art Gallery, I was told that it has the best collections of Victorian paintings in the world, and is the home of modern art in the north of England. However, culture is more than galleries. Liverpool offers many music events. As Britain's No. 1 music city, it has the biggest city music festival in Europe, and its musicians are famous all over the world. Liverpool is also well-known for its football and other sports events. Every year, the Mersey River Festival attracts thousands of visitors, making the city a place of wonder.

    As you would expect from such a city, there are restaurants serving food from around the world. When my trip was about to complete, I chose to rest my legs in Liverpool's famous Philharmonic pub（酒馆）. It is a monument to perfection, and a heritage attraction itself.

    Being a World Heritage Site, my home city is certainly a place of “outstanding universal value”. It is a treasure house with plenty of secrets for the world to explore.

    Chinese high school students who want to enter the University of Cambridge may find that their scores on the national college entrance examination, or gaokao, will help their applications in the future.

    The University of Cambridge said in March that it has been using scores on gaokao as part of its admission criteria (标准) for Chinese students for several years, according to its official Weibo account. In addition to top scores on gaokao, Chinese applicants also need to meet English language requirements, participate in an interview and take a subject-specific wrillcn admission assessment (评估).

    The gaokao has been crillcized by some as a one shot exam that focuses on rote learning (死记硬背) rather than creativity. However, more and more people believe that there's no perfect predictor (侦测指标) of academic performance, and gaokao has the advantage of being what educational experts call a criterion-referenced (标准参照) exam—tests when her students are able to master a given body of knowledge , as well as their ability to work hard and consistently. Recent years have seen more and more foreign universities begin to accept gaokao scores as part of the application process.

    Despite the gaokao's growing acceptance among US universities, "There is a long way to go before the US education circle fully recognizes the gaokao, as there are still many US universities that don't accept it as part of their application process," Chu Zhaohui, a researcher from the National Institute of Education Sciences, told the Global Times.

    Better known by his stage name Kun, Cai Xukun is, without a doubt, one of the most popular stars in China.

    On July 26, the 21-year-old dropped his new single Young. Within just 20 seconds, it reached 1 million views and in only 3 days topped the music charts of Tencent's QQ music.

    Cai wrote the song by himself to share his understanding of modern-day youth. The singer has mixed R&B with electronic music to make his new beat cheerful. One reviewer wrote on QQ Music: "When you listen to the song, you just seem to go back to youth again."

    August 2 is Cai's birthday, and the song was a gift to himself. The singer hopes that he can always have the courage to follow his love of music, ignoring what anyone says. "My works are like my children and I have put my best effort into them. I want every piece of my work to have my own spirit in it. I feel more enjoyment when I am performing my own work." He told the Global Times.

    To find new inspiration, Kun attends different kinds of musical performances－from festivals to opera houses. "I just like to do everything, all for my music, all for my art," he told i-D.

    With talent and dedication(专注) to music, Cai is expected by many to make his mark in the competitive Chinese music industry.

Even though it is just a few years old, the comic strip, Cul de Sac, has already won many fans through its characters. So when cartoonist, Richard Thompson, announced that he had been diagnosed with Parkinson's disease, his fans sat up and took notice.

One of the fans was Chris Sparks, a designer and web developer in North Carolina. Sparks was building a website for Thompson when the cartoonist announced his disease. He started reading more about Parkinson's disease through books and websites. There he found that people could form public fund-raising teams to raise money for Parkinson's research. He quickly decided to form his own team: Team Cul de Sac.

However, Sparks decided to take a different path. He has contacted dozens of cartoonists around the world, who will contribute artworks inspired by the Cul de Sac strip. Thompson's publisher, Andrews Mcmeel, has agreed to release them in a book next year. Some of the profits from the book will go to the research. And after the book is released, the artworks will be auctioned off. All profits will go to the research team. The aim is to raise $450,000 for the foundation. "We've already had around 80 people who say they are interested in contributing", says Sparks.

Although many people with Parkinson's disease are private about their condition, Thompson is not one of them. He's happy to put his support behind the project. "I think we can make a difference," says Sparks, who points out that his love of comics inspired him. "I've been reading comics since I was 5 years old, and most of the cartoonists I've met have been wonderful human beings,"he says. "They've made a difference in my life, and I hope to make a difference as well."