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Few people can refuse a delicious ice cream, especially on a hot day. The only thing that stops the fun is that the treat is hard to enjoy slowly, ending up with a sticky, melted mess. Now, researchers from Colombia's Pontifical Bolivarian University may have found an unlikely thing to help solve this age-old problem — a kind of fibre from banana plant waste.

Bananas as you probably know, grow in groups on a tree-like plant. Each group is connected to a central rachis (叶轴), which is thrown once the fruit has been gathered. The team, which was led by Dr. Robin Zuluaga Gallego, began by abstracting /drawing out cellulose nanofibrils (CNFs) from the powdered rachis. The tasteless fiber, thousands of times smaller than the width of a human hair, was then added to 100 grams of ice cream mix.

With the right amount of CNFs mixed in the dessert lasted longer in its frozen state than the traditional ice cream, extending the amount of time that the treat can be enjoyed. What was even more exciting was that the fibre increased the stickiness of the low-fat ice cream to levels higher than the full-fat one. Since this is what determines the frozen treat's creaminess and taste, CNFs could help create the healthier ice cream without influencing the taste of it.

The researchers, who presented their findings at the American Chemical Society( ACS) meeting in New Orleans in March, 2018, next plan to study how different types of fat, such as coconut oil, influence the behaviour of CNFs in other frozen treats.

The Colombian researchers are not the only ones working on creating a slower-melting ice cream. In 2015, scientists at the University of Dundee in Scotland found that a natural protein called BsIA was very effective in keeping the treat frozen for longer periods of time. With both teams fighting to be the first to get to the market, the future of everyone's favorite dessert certainly looks bright.

A tree-planting initiative in Kenya has seen over 30,000 trees being planted. The Green Generation Initiative is a Kenyan charity that has been planting trees to counter climate change and the reduction in forest in the East African nation since 2016.

Founded by climate activist Elizabeth Wathuti when she was fifteen years old, the initiative's primary focus is on developing young climate activists through environmental education in schools and addressing food insecurity in the region through planting fruit trees. Since its foundation, over 30,000 trees have been planted in Kenya, while thousands of school children have not just planted trees but adopted them to ensure that young people learn the importance of acting as a guardian over the health of the environment. The trees have recorded a survival rate of over 98 percent, as they remain tended to from young trees to maturity.

Speaking to world leaders at the recent United Nations Climate Conference in Glasgow (COP26), Elizabeth issued a serious warning on the threat of climate change. Over two million of Kenyans are facing climate related starvation. In 2025, half of the world's population will be facing water shortage. The climate crisis will displace 80 million people in sub-Saharan Africa alone.

Elizabeth said, "I have been doing what I can. Inspired by the great Wangari Maathai, I founded a tree growing initiative that enhances food security for young Kenyans." So far, they have grown 30,000 fruit trees to maturity, providing desperately needed nutrition for thousands of children. "Every day we see that when we look after the trees, they look after us. We are the adults on this Earth right now, and it is our responsibility to ensure that the children have food and water," she added.

Dance Classes

Ballet

Ballet teaches grace, posture and flexibility. Students focus on the use of proper ballet items,expanding their knowledge of classical ballet techniques and improving motor skills for classical ballet practice. The class is a formal ballet class.

Age 8-10

September 7, 2019-May 16, 2020

10:30 am-12:00 am on Saturday

Creative Movers

Students can explore creative movement, balance, focus, the development of skills, motor planning and balance. The class helps build strength, flexibility and self-confidence, and allows children to realize expression in a positive and encouraging environment. Children use their imagination to celebrate movement and have lots of fun.

Age 3-5

September 7, 2019-January 18, 2020

9: 00 am-9 : 45 am on Saturday

Jazz

Jazz includes movements from both classical ballet and dance techniques. This class will focus on traditional jazz dance. Students will be introduced to jazz-style rhythms and movements. In order to ensure proper placement for your child, we invite all students to participate in a sample(示例) class. Students and parents work with program staff to meet students' personal dance goals.

Age 5-6

September 7 2019-May 16, 2020

2: 00 pm-3 : 00 pm on Saturday

Hip Hop

Students will be introduced to several different aspects of hip hop dance including popping, locking, breaking and tutting in a high-energy environment. Our hip hop instructors are highly knowledgeable and will provide students with a wonderful view of hip hop dance.

Age 7-10

September 7, 2019-May 16, 2020

1: 00 pm-2 : 00 pm on Sunday

增加：在缺词处加一个漏字符号(A),并在其下面写出该加的词。

删除：把多余的词用( v)划掉。

修改：在错的词下划一横线,并在该词下面写出修改后的词。

注意： 1.每处错误及其修改均仅限一词;2. 只允许修改10处，多者（从第11处起）不计分。

The Internet consisted of millions of pages of data is the big source of information in the world. The World Wide Web is a computer network that allows computer users to have an access to information from millions of websites. It was invented in 1991 by Tim Berners-Lee, he built his first computer while he was at university. He came up to the idea of the World Wide Web in 1989 while worked in Switzerland. Berners-Lee made possible for everyone to use the Internet. He designed the first "web browser", which allowed computer users to access document from other computers. The Internet had created thousands of millionaires. Besides,Berners-Lee is not one of them. He now only works as a lecturer in Boston.