1 . Throughout history scientists have risked their health and their lives in their search for the truth.

Sir Issac Newton，the seventeenth century scientist was very smart, but that didn’t stop him from doing some pretty stupid things. In his laboratory in Cambridge, he often did the strangest experiments. Once, while testing how light passes through lenses(晶状体), he put a long needle into his eye, pushed it to the back, and then moved it around just to see what would happen. Luckily, there was no lasting bad effect. On another occasion, he stared at the sun, for as long as he could bear, to discover what effect this would have on his sight. To escape suffering permanent damage, he had to spend some days in a dark room before his eyes recovered.

In the 1750s,the Swedish chemist Karl Scheele, was the first person to find a way to produce phosphorus(磷). He, in fact, discovered eight more chemical elements, including Chlorine(氯)，though he didn’t get any place for them. He was a very clever scientist, but he had a strange habit of tasting a little of every substance he studied. This risky practice finally caught up with him. In 1 786,he was found dead in his laboratory, surrounded by a large number of dangerous chemicals, any of which might have been responsible for his death.

Eugene Shoemaker was a respected geologist, he spent a large part of his life studying craters(陨石坑), and how they were formed, and later the research into the comments of the plane Jupiter. In 1997, he and his wife were in the Australian desert. where they went every year to search for places where comets(彗星)might have hit the earth. While driving in the Tanami desert, one of the most open places in the world, another vehicle rushed into them, and Shoe maker died on the spot. Some of his ashes(骨灰)were sent to the moon by the Lunar Prospect or, a spacecraft. and he is the only person who has this honor.

Having received your letter, I'm happy to write to inform you about the erhu course.

Yours,

Li Hua

Generally spoken, the relationship between students and people around us was good. We are getting on well with each other. Therefore, there still exist some problems. Some students lose his temper easily because of learning burden. They sometimes quarrel with others, that is very disappointing. In my opinion, we middle school students should make our efforts improve the situation. Firstly, we should respect for other people. Secondly, when we are not feeling happily, we can chat with our friends or teachers or even parents. It is likely that they can give us some reasonable advices. Last but not least, we can trying to make some changes in our way of life.

Time to Upgrade Phone? You Bet!

“Is it high time to buy a 5G phone now or should I wait?” this question     1     (throw) at me constantly by friends ever since China commercialized 5G last October.

First of all, China now has a wide 5G coverage, which makes     2     convenient for consumers to use 5G smartphones. Currently, 5G signals are available in all prefecture-level cities in China. And     3     (consume) in more than 300 cities are able to access 5G signals when they are in subways,     4     (take)a walk in parks or shopping at malls.

Moreover, telecom carriers have announced their plans to cover key countries and towns     5     5G signals next year, which will attract more people to 5G smartphones.

At the same time, the prices of 5G data packages are also dropping     6     (great) from the starting price of more than 120 yuan ($18. 3)per month at the start of this year to about 90 yuan now, making the tech     7     (afford) for more people to enjoy the 5G service. There are more 5G smartphone models to choose from-some of them may remain much too expensive,     8     the cheapest one now costs only 999 yuan.

China’s big three telecom carriers are also working on a new 5G- enabled messaging service,     9     is designed to replace current short messages with a system that is richer. The service also     10     (provide) phone book polling, and can transmit in-call multimedia.

5 . My most rewarding experience throughout the past two years was volunteering at the swimming competition for Special Olympics where a disabled friend of my community took part. This had special _________ for me because experiencing it helped improve my leadership skills, my character, and support my community.

First, my leadership skills developed when I _________ directed each swimmer where to line up at the platform and _________ each player when they needed to swim. I had to make sure that the swimmers were _________ and ready to perform. This kept me on my feet at all times and _________ of each event's time and location. I learned each swimmer's name, since many of them swam in more than one _________.

Secondly, my _________ was greatly improved when I saw the swimmers get their awards for winning each swimming event, I was _________ that most swimmers could swim better than me. It astonished me by their _________ attitudes, whether they won or lost. This also expanded my horizons, offering me the opportunity to __________ people I would normally not come across. I went out of my __________ zone and did whatever was needed to be done. It was especially __________ when I saw the cheerful faces of the players.

Lastly, I was of __________ to my community by lending a hand to this organization in need of __________. To be a __________ of it gave me a chance to improve my community and become __________ with the people living in this area.

As Winston Churchill once said, “We make a living by what we do, but we make a life by what we give.” The __________ should be done throughout your life. __________, through the many opportunities my community has offered I was privileged to be __________ in this exciting and important event in these players’ lives. I hope to be a(n) __________ at this event in years to come.

6 . How to Make Small Talks to Make You Happier

Small talks are the short conversations we have at parties, while we wait in line at the store, at family events or work. And small talks may make us happier, according to researchers from the University of Essex in Britain! However, some people are not good at small talks.     1    

Have some conversation starters ready.

If you have seen a really good movie or have read a really good book, you can talk about that. You can talk about something that you recently learned.     2    , it’s easy to start a conversation. You simply notice and comment on what’s going on around you. For example, if you are at a party and a song comes on that you like or that reminds you of something, you can talk about that.

Ask open-ended questions.

    3    . If you ask questions that need more details to answer, the conversation will go on longer. For example, if you are at a summer pool party, don’t ask a person if they like summer. Instead, ask them what they like or dislike about summer. So, instead of getting a one-word answer, you might have the chance to share in a memory.

Become a student.

Nobody knows everything.     4    , they bring up something about which you know nothing. So, tell them! This lets the other person become the teacher. They feel good about sharing their knowledge and you get to learn something. It’s a win-win situation.

    5    .

Like anything, getting good at making small talk takes practice.

7 . Science fiction pioneer and writer Wu Yan won this year's National Outstanding Children's Literature Award for his latest work China Orbit. The book focuses on the development of the Chinese aerospace(航空航天) industry, and it was inspired by the planning and preparation for China's first but canceled manned spacecraft, “Shuguang 1”, also known as Project 714, during the late 1960s and early 1970s.

“I collected many historical documents and stories and started writing decades ago,” Wu remembered. Partly based on Wu's own experiences in the 1970s, the book is a combination of reality and fiction, and in some ways his own memoir(回忆录) was added into the science fiction. This innovative and unique writing method makes the book stand out and has even stirred up a debate on how to categorize it. Is it science fiction, popular science, children's literature, or aerospace literature?

His fellow science fiction writer Liu Cixin, author of The Three- Body Problem, sees it more deeply, and believes China Orbit is not really children's science fiction or popular science. He thinks it is too complicated to be classed under a single category. He speaks highly of China Orbit as a unique science fiction novel that vividly shows a child’s real-life experience in a military camp of a specific era.

In Wu's opinion, China is a big market for children's science fiction, but it still lacks extraordinary works. He warned people not to try to earn quick money from it after The Three Body Problem frenzy and movie blockbuster The Wandering Earth because Chinese science fiction still has a long way to go. “We need to build Chinese science fiction step by step, with an accumulation(积累)of really great works. We need to innovate, and treat it as part of building China's new culture, ” Wu said.

8 . Good afternoon. I am Sullivan. Now think about a question: What determines the way we are when we grow up? Let’s start with the TV program Seven Up. Do you still remember it? It started following the lives of a group of children in 1973. We first meet them as wide-eyed seven-year-olds and catch up with them at seven-year intervals: nervous 14-year-olds, serious 21-year-olds and then grown-ups.

There are ups and downs in their lives, but interestingly, in almost all the cases the children’s early hopes and dreams are shown in their future lives. For example, at seven, Tony is a lively child who says he wants to become a sportsman or taxi driver. When he grows up, he goes on to do both. How about Nicki? She says, “I would like to find out about the moon.” And she goes on to become a space scientist. As a child, soft-spoken Bruce says he wants to help “poor children” and ends up teaching in India.

But the program would have been far less interesting if the lives of all the children had followed this pattern. It was the children whose childhood did not prepare them for what was to come that made the program so fascinating. Where did their ideas come from about what they wanted to do when they grew up? Are children influenced by what their parents do, by what they see on television or by what their teachers say? Many film directors, including Steven Spielberg, say that an early visit to the cinema was the turning point in their lives. One of my colleagues, Dr. Margaret, who has devoted herself to researches in this area and published her findings in Science, thinks that the major factors are parents, friends and the wider society.

I’m sorry to hear that you had the argument with your mother.

In my opinions, you should apologize to your mother, as she has done nothing wrong prevent you from Internet addiction. Although the Internet plays an important role in modern life, we can’t ignore its seriously harm to us. Many students spend most of the time play computer games or chatting aimlessly with others, which may not only result in poor health and decline in study, and also loss of communication in the real world.

As students, which we devote our energy to should be learning. When available, you may as well walk outside with my friends or took some exercise to keep fit. Only in this way can you live in and study happily and healthily.

Yours,

Li Hua