My grandfather is a Party member. He often shares stories about the Communist Party of China
1变化（交通transportation,环境environment,……）；
2.原因；
3.欢迎他再来平谷。
注意：1.词数100左右；
2.开头和结尾已给出，不计入总词数。
Dear Jim,
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Yours,
Li Hua
3 . Where is the future going?
Our work habits have changed a lot over the past thirty years. While our parents may have expected to stay in one job, with one company, for their whole life, we are faced with the possibility of changing jobs and even careers several times. Our understanding of education, work and society is different from that of earlier generations.
People in the future will still need food, of course, but the way we produce food will not be the same.
What about people who work with computers? Well, things will change for them, too. More advanced computer programs and new technologies will remove the need for computer operators who perform simple actions. Modern search engines can do many of the things that yesterday's computer operators did. Word processing and simple information handling can be done automatically.
A rapidly changing job market also creates new challenges for students, teachers and parents.
| A．What life will be like in the future is difficult to predict. |
| B．Not only the way we work and view the job has changed. |
| C．It is hard to imagine where all these advanced technologies will lead us. |
| D．For people with these skills, there will be new jobs as database managers. |
| E．Where is the future going and what can we do to find a place for ourselves in it? |
| F．Small farms that use old methods will be replaced by large farms with high efficiency. |
| G．The difference in values, skills, education and desires between two generations is growing. |
4 . Future City Competition
Future City starts with a question—how can we make the world a better place? To answer it, 10th, 11th, and 12th grade students imagine, research, design, and build cities of the future that showcase their solution to a citywide sustainability issue. Past topics include Urban Agriculture, Public spaces, and Green energy while the topic of this year is Living on the Moon. Teams will design a futuristic lunar city and provide examples of how the city uses Moon resources to keep its residents safe and healthy.
Participants complete five deliverables: a 1,500-word city essay: a scale model; a project plan; a presentation video; and a virtual/online Q&A session with /judges. Regional winners represent their region at the international Finals. After completing Future City, student participants are not only prepared to be citizens of today’s complex and technical world, but also ready to become the drivers of tomorrow.
What you can learn
This flexible, cross-curricular(跨课程的) educational program gives students an opportunity to do the things that engineers do-identify problems: brainstorm ideas; design solutions; test, retest and build; and share their results. With this at its center, Future City is an engaging way to build students’ 21st century skills. Students participating in Future City also learn how their communities work and become better citizens and develop strong time management and project management skills.
What you need
Future City costs just $25 per organization—and you can register I team or 100. The price always stays the same.
We keep the price affordable so everyone can participate. Not only that, we limit the budget for materials for the City Model and City Presentation to $100 and encourage teams to use recycled materials. You don’t need expensive equipment to excel. Creativity, hard work, and commitment are all you need to get ahead.
Please note: Some regions limit the number of teams an organization can bring to the Regional Competition. Please check with your Regional Coordinator to find out the guidelines in your region.
1. In Future City Competition 2021, students need to ________.| A．complete more than five taskes |
| B．design a city with green energy |
| C．address problems on the moon |
| D．make use of lunar resources |
| A．Designing cities. |
| B．Identifying problems. |
| C．Training better citizens |
| D．Engineering design process |
| A．to be creative and devoted. |
| B．to use the recycled materials. |
| C．to buy some expensive equipment. |
| D．to ask more people to join in your team. |
5 . On paper, hydrogen（H2）looks like a dream fuel. Coal, oil, and natural gas produce carbon dioxide, which warms the earth when burned, Hydrogen produces pure water. Hydrogen packs more energy into less space than a battery（but certainly less than petrol）. Also, empty tanks（燃料箱）can be refilled with hydrogen much faster than refilling empty batteries with electricity.
While in practice, things are trickier. Storing a meaningful amount of hydrogen gas requires pressing it several hundred-fold. Changing it into the liquid form is another option, but it should be cooled to-253C. Both processes require a heavy and strong tank. While a 700 bar tank is acceptable for a city bus or a truck, adapting it for use in small vehicles is very difficult because the pressure during refilling would be too great.
The solution? Powerpaste.
A German team of researchers, led by Marcus Vogt, have come up with an interesting "powerpaste", which can store hydrogen energy at atmospheric pressure, ready for release when needed. It is so named because it comes in tubes and looks like toothpaste（牙膏）, not in its traditional form of gas.
The main ingredient（原料）of the paste is magnesium hydride, a substance that reacts with water to form hydrogen. The escaped hydrogen can then be directed into a fuel cell, where it reacts with oxygen from the air to produce electric power.
Refueling is very simple, as instead of going to a filling station, drivers and riders can simply replace an empty tube with a new one and refill the water tank.
Given that powerpaste only begins to break down at temperatures of around 250℃ it remains safe even when a vehicle stands in the baking sun for hours.
However, we will have to be patient. Just because researchers have succeeded in developing a new fueling way does not mean that we can expect to see such vehicles on the road anytime soon. It will indeed be several years before this concept is turned into reality.
1. As a fuel, what is the advantage of hydrogen over oil?| A．Refilling empty tanks will be more convenient. |
| B．It is less likely to worsen global warming |
| C．More energy can be packed in the same space. |
| D．It will produce pure water for people to drink. |
| A．The practical difficulties to use hydrogen as fuel in small vehicles. |
| B．The detailed processes of adapting a strong tank in small vehicles. |
| C．The differences in fueling between large vehicles and small ones. |
| D．The tricks of building strong tanks in small vehicles. |
| A．inexpensive | B．powerful | C．convenient | D．environment-friendly |
| A．Powerpaste-driven vehicles sometimes move very slowly on the road. |
| B．Practical use of powerpaste-driven vehicles will not come very soon. |
| C．Powerpaste-driven vehicles can only work after being in the sun for hours |
| D．It will be years before the researchers work out the concept of powerpaste. |
6 . Today’s grandparents are joining grandchildren on social media, but the different generation’s online habits couldn’t be more different. The over-55s are joining Facebook in increasing numbers, meaning that they will soon be the site’s second biggest user group, with 3.5 million users aged 55-64 and 2.9 million over-65s.
Sheila, aged 59, says, “I joined to see what my grandchildren are doing, as my daughter posts videos and photos of them. It’s a much better way to see what they’re doing than waiting for letters and photos in the post. I think I’m lucky I get to see so much more of their lives than my grandparents did.”
However, Sheila’s grandchildren are less likely to use Facebook themselves. Children under 17 are leaving the site—only 2.2 million users are under 17---but they’re not going far from their smartphones. Chloe, age 15, even sleeps with her phone. “It’s my alarm clock so I have to,” she says. “I look at it before I go to sleep and as soon as I wake up.”
Teenagers might have their parents to thank for their smartphone and social media addiction as their parents were the early adopters of the smartphone. Peter, 38 and father of two teenagers, reports that he used to be on his phone or laptop constantly. He says, “How could I tell my kids to get off their phones is I was always in front of a screen myself?” So, in the evenings and at weekends, he takes his SIM card out of his smartphone and puts it into an old-style mobile phone that can only make calls and send text messages. “I’m not completely separated from the world if emergent, but the important thing is that I’m setting a better example to my kids and spending more quality time with them.”
Is it only a matter of time until the generation above and below Peter catches up with the new trend (趋势) for a less digital life?
1. How does Sheila feel about social media?| A．Useful. | B．Disappointed. | C．Useless. | D．Addicted. |
| A．To make calls to his boss. |
| B．To stop his work. |
| C．To set a good example to his kids. |
| D．To catch up with the new trend. |
| A．different | B．figured out | C．cut off | D．protected |
| A．Children under 17 don’t use smartphone at all. |
| B．Chloe is one of the early adopters of the smartphone. |
| C．Today’s grandparents enjoy a life without social media. |
| D．People may enjoy a less digital life in the near future. |
World leaders are planning to return to the moon in the near future. Two companies have also made a decision
8 . Farms of the Future
Skyscrapers(摩天大楼) are the ultimate symbol of urban life. By 2050, almost 80 percent of the earth’s population could live in cities. The human population could increase to 9.1 billion people yet the amount of land available for farming will be the same.
Vertical farms, where farmers could grow crops in environmentally friendly skyscrapers, could be the solution. In spite of concerns over high costs, experts want to make these urban farms a reality and use these skyscrapers to grow crops.
Vertical farms would have many advantages, experts say. The food would be grown with minimal effects on the environment. Unlike traditional farming, vertical farming would not force animals out of their habitats by taking over large areas of land, nor would it pollute the air with the use of heavy farming equipment.
Growing prosperity has led to many people demanding that all foods are available all year round. Indoor farming could produce crops constantly and crops would not suffer from weather-related problems like drought or flooding. In addition, the use of agricultural chemicals for controlling insects would be minimal.
Experts agree that the new farming practices are needed to support the planet’s need for more and more food at affordable costs, both to the farmer and to the consumer. Vertical farms may be a small-scale answer, but the best ideas could be yet to come.
| A．Still, there are some people who are critical of vertical farms. |
| B．That is where vertical farms are often needed for year-round crops. |
| C．So how to meet the increasing food needs of our planet could be a big problem. |
| D．For these reasons, natural light cannot be a workable solution for vertical farms. |
| E．Vertically grown food is grown in environmentally controlled conditions in big cities. |
| F．Those farms would also reduce the cost and negative effects of transporting food over distances. |
| G．They believe that we can increase the food production by changing our thinking from out to up. |
