Hi, everyone. I'm glad to show you around our city.

Now we are standing at Qingnian Square. {#blank#}1{#/blank#} It is the white building over there. And it's on Changqing Street. Next to the bank is a bookstore. Many people go there to buy books. Go along Changqing Street.{#blank#}2{#/blank#}. It is at the end of the street. Then turn left into Hengshan Road, and our school is on the right{#blank#}3{#/blank#}. We sometimes walk along Hengshan Road to go to the swimming pool after class.{#blank#}4{#/blank#} Oh, there is a small river outside the city. {#blank#}5{#/blank#} It is great fun.

从A, B, C, D四个选项中选择恰当的句子填入文中空缺处，使内容完整，正确。

    Paper cutting is a special form of traditional art in China.It has has a history of over 1, 500 years. People started to do paper cutting in China in the 6th century.It has a number of special uses in Chinese culture.Almost all of them are for health, happiness or peace.Red is used the most widely of all the colors.Since long ago, Chinese people have been interested in cutting paper into traditional Chinese characters.

    Paper cutting is popular around the world, but only the Chinese paper cutting is listed in the UNESCO's Intangible Cultural Heritage Lists (联合国教科文组织的非物质文化遗产名录) in August 2010, because it has long history and it tells people so much about Chinese history and culture.

    Paper cutting has developed fast over the past few years.It is still popular in China now.During special festivals like the Chinese Spring Festival, people cut beautiful pictures and put them on windows and doors.

Information Card

    With air pollution making much difference to many of Chinese cities, parents are calling for the installation(安装) of air cleaners in classrooms. There has been much debate over whether air cleaners should be used in China's schools. Some parents have donated cleaners to their children's classrooms, while others raise money together to make the purchase(购买). “Our school bought air cleaners last year. We did a little fund raising, with each parent throwing in several hundred for that,” said one parent.

    However, the idea of installing air cleaners for all the classes has been refused by some schools. Liu Liangcheng, vice-principal of Beijing's Taipinglu Primary School, says installing air cleaners bought by parents may lead to problems. “We have refused air cleaners bought by parents before, as there are clear and strict rules against educational fees. We can't just break the rules here. And without standard guidance (指示) from local authorities(权威部门), it is hard to decide on the brand of the cleaner, installation and even safety of the device(设备).”

    Moreover, experts say air cleaners can cause other health problems. Deng Gaofeng who works for the China Academy of Building Research says. “ In the classroom, if we keep windows and doors closed, the concentrations (浓度) of CO₂ will double from 1,000 PPM to some 2,000 PPM. According to national safety standards, the highest level should not be more than 1,500.” In addition, experts say air cleaners on the market are mostly designed for homes or offices. Evaluation(评估) is needed to know whether they are suitable in classrooms.

    It seems whether air cleaners should enter China's schools is an ongoing question. It still requires a more detailed plan.

阅读以上信息，用恰当的单词完成下面的表格，每空一词。

Topic : Should air cleaners be installed for students in school?

    "How are you?" is a nice question. It's a friendly greeting that people in the United States use. {#blank#}1{#/blank#} It's a question that often doesn't need an answer. The person who asks, "How are you?" expects to hear the answer "Fine," even if the person isn't fine. The reason is that "How are you?" isn't really a question and "Fine" isn't really an answer. They are common ways of saying "hello" or "hi".

    {#blank#}2{#/blank#} For example, when someone asks "Do you agree?", the other person may be thinking, "No, I don't. I think you're wrong." It isn't polite to disagree very strongly, so he might say, "I am not so sure." {#blank#}3{#/blank#}

People also don't say exactly what they are thinking when they finish talking to other people. For example, many conversations over the phone end when one person says, "I've got to go now," or the person who wants to hang up gives an excuse such as "Someone is at the door," or, "Something is burning on the stove." {#blank#}4{#/blank#} The person who wants to hang up simply doesn't want to talk any more, but it isn't polite to say so. An excuse is polite, and it doesn't hurt the other person's feelings.

    Whether they are greeting each other, talking about an opinion, or ending a conversation, people often don't say exactly what they are thinking. {#blank#}5{#/blank#}

A. This is a nicer way to say that you don't agree with someone.

B. You'd better not to tell the truth to your family.

C. However, "How are you?" is also an unusual question.

D. The excuse may be real, or not.

E. Sometimes, people don't say exactly what they mean.

F. If you disagree with others, they will hate you.

G. This is one way of being nice to people, and it's a part of the game of language.

Mechanical Engineering

    Do you like to build with blocks? Have you ever wondered how planes stay in the air? Do you like to design and create new things? If you do, a career(职业）in mechanical engineering might be right for you！

    A mechanical engineer is responsible for coming up with and designing mechanical systems. Mechanical systems can include machine design, heating and cooling equipment, and product design.

    Mechanical engineers are in high need right now. There are a lot of job openings for mechanical engineers, but there aren't enough people to fill those jobs. Because there is a high need for engineers and the work requires specialized knowledge, engineers get paid more than some other careers.

    To be a mechanical engineer, you need to graduate from college with a bachelor's(学士)degree. In college, you will learn problem solving and critical thinking skills.

    Problem solving is very important in the field of mechanical engineering. To come up with the best solution to a problem, mechanical engineers need to think in different ways. They also need to be creative, because they may need to make something that's never been made before. Paying attention to details(细节)is important as well. Many designs depend on a lot of little details.

    Mechanical engineers also need to be able to use different tools, such as calculators, high-speed cameras, and computers. There are many computer programs mechanical engineers use to create designs, run scenarios(方案), and do research.

    As with many other jobs, mechanical engineers should be able to meet deadlines(期限)and work well with other people. Some jobs can be done with just one person, but more often mechanical engineers work on a team to complete a project. If an engineer cannot manage his or her time well and misses a deadline, the whole team gets delayed(拖延).

    Some engineers work in an office, and some travel to different worksites while a machine or product is being built, so they can help solve any problems.

    Mechanical engineering takes a lot of thought. It is a great career for people who like to make objects and machines work, solve problems, and be creative！

    You may think that inventions are far away from your everyday life. But in fact, almost everyone can invent things. It's just that they do not realize that their ideas could be the start of an invention. Once inventors see their ideas have some practical value, they don't let them slip way.

    For example, the inventor of the dishwasher, American Josephine Cochrane, loved to give dinner parties. But she found it took long to wash her dishes by hand. She decided that a machine could do the job faster and with fewer mistakes. So, in 1886, she set out to make one for herself.

    Here are the steps to create inventions. The first and most important step is to find the problem. You can start by looking at what is wrong with things you use now. You can ask grandparents or neighbors if they remember ever saying: "I wish someone would invent something for…" Or you can look at people in different areas--such as on the street, or at school. Then you might notice situations or things in need of improvement. Remember to record you ideas and work. This will help you develop your invention and protect it when it is completed. The next step is to think about possible solutions (解决方法). An invention is a new way of solving a problem. So think of many, varied and unusual ways. You can often come up with a solution to a problem by looking at it from a different side.

    The hardest part of inventing, even for a lot of inventors, is coming up with a problem and finding a solution. Once you have an idea, you can always get help building your invention. This problem-solving technique can also work in your everyday life. So, why not try it in your studies, in your relationship with others, or even in the way you look at the world?