修改时间:2024-09-27 浏览次数:7 类型:月考试卷
A. single B. speed C. richest D. simple E. on average F. be called |
The Yarlung Tsangpo Grand Canyon is more than 500 kilometers long and 2, 268meters deep, with the deepest point reaching 6, 009 meters and the river running at a top of sixteen meters per second. Hence some people call it a "waterfall on the riverbed". This world's deepest and largest canyon in southeast Tibet also accommodates the mountainous biodiversity () on the globe. Here you can see many rare animals and plants and experience the change of the four seasons within a day. It could "the last wonderland on Earth. "
Biomimicry borrows nature's design ideas and applies them to solve human difficulties. Nowadays a lot of companies started to invent in ways that are as elegant as what nature manages to do, and their designers and engineers began to sit with biologists to learn how nature would solve whatever it is they're trying to solve.
Some biologists worked with Nike company on apparel(服装)that would keep an athlete cool at the 2004 Summer Olympics. In a hot, dry place like Athens, what kind of organisms have to keep themselves cool and how do they do it? They found an African reed frog——a champion adapter in the heater—to study.
If a company is making a solar cell , Biomimicry scientists will talk about how a leaf captures energy with their designers. Or if they're looking for some way to create an impact-resistant car,
Biomimicry scientists will explain how woodpeckers can peck trees all day without harming themselves.
Companies get the catalog of inspiration from the natural world and create things that sip energy, a city planner, an architect-should take one biology class in school.
If you take a look at the octopus, you'll notice it moves fluidly and precisely but of course without motors or noisy fans or harmful fuel. The giraffe's vascular system allows it to pump blood up to its head and dip its head without getting dizzy. The humpback whale's flipper has scalloped edges to calm turbulence, and that's being mimicked in a new kind of wind turbine that can rotate in very low wind speeds because of its shape. There's even a new kind of pacemaker based on the heart of the whale.
One famous biologist once said, 'In nature, failures are fossils. The organisms that are still with us are proven Companies that created a new product inspired by an organism have decided to donate a percentage of their proceeds to conserve the habitats of the organism.
In ten years, you'll be able to visit ocean parks that have been preserved with the proceeds from a no-heat ceramic recipe based on the abalone's mother-of-pear!
Choose the best answer:
When my father was getting ready for work, our house was ruled by knocks and words. He used to come downstairs to breakfast. The morning paper lay beside his plate. He always read the' Deaths' first; and then he knocked once on the table. One of my sisters brought hi toast, already buttered for him.1 he said nothing, but once I heard him say, "I love you very much, Edith. I would love you more if you buttered my toast on2 . "He read the paper all through breakfast.
Two knocks on the table meant 'I am ready for my tea', If a single knock followed, that meant 'More toast, please. ' After breakfast he said, "Boots. " The paper was3 for him over the back of an armchair. Yesterday's paper was put on the chair for his feet, and his boots were brought to him, freshly cleaned. He read standing,4 putting on his boots and tying the laces.
With one boot finished, he said, "Bus. " At that point one of the girls went outside to the garden gate and waited there. Her job was to stop the bus when it came. It came early sometimes, and it had to wait for my father. "Overcoat, hat. " One of my sisters had already brushed his overcoat. Now she held it open for him and guided his arms into it. Then she pulled his jacket down under the coat.5 girl came with his hat, nicely brushed. "Handkerchief, pipe. " They were brought and put, with his tobacco, into his pockets. He looked out of the window and said either 'Walking stick' or'Umbrella'. It was handed to him.
Ready now, he was still reading the paper. He did not put it down until he heard the shout "Bus coming! " Then he kissed my mother and went out. The girls breathed freely. How lucky a man is to have a wife and five daughters at home!
Researchers have developed a printer that produces 3D personalized chocolate. The printer, which produces 3D chocolate by b up successive layer is thought to be an improvement in gift shopping. It has already received huge amounts of interest from shopkeepers.
It is hoped that project will eventually see people designing and creating their own products across a wide range of gifts. The l researcher, Dr. Liang said, "What makes this technology special is that users will be able to design and make t own products. "In the long term it could be developed to help consumers. design many products from different m" From the shape of a child's favourite toy to a friends' face, the possibilities are endless and only limited by our ideas, " he said.
The research team is now looking to develop a consumer stage where people will be able to send their own chocolate designs for 3D printing. They will also be able to browse through the designs of other users, but can't c them without permission. Dr. Liang added, "Eventually we can may see many mass-produced products being r by unique designs created by customers. "
This is an imaginative application of two developing technologies as well as a good example of how creative research can be applied to create new products and sales-ideas.
He also said, "By combining developments in engineering with the commercial potential of the digital economy, we can have a look at the future of new markets—creating new jobs and, in this case, sweet business opportunities.
Making good choices about your own health requires reasonable evaluation(评价,评估). A key first step in bettering your evaluation ability is to look carefully at your sources of healthy information.
Reasonable evaluation includes knowing where and how to find relevant information how to separate fact from opinions, how to recognize poor reasoning, and how to analyze information and the reliability of sources.
Go to the original source. Media reports often simplify, the results of medical research. Find out for yourself what a study really reported, and determine whether it was based on good science. Think about the type of study.
Watch for misleading language. Some studies will find that a behavior "contributes to"or is "associated with" an outcome: this does not mean that a certain course must lead to a certain result. Carefully read or listen to information in order to fully understand it.
Use your common sense. If a report seems too good to be true, probably it is. Be especially careful of information contained in advertisements. Evaluate" scientific" statements carefully, and be aware of quackery(江湖骗术).
Friends and family members can be a great source of ideas and inspiration, but each of us needs to find a healthy lifestyle that works for us.
Developing the ability to evaluate reasonably and independently about the health problems will serve you well throughout your life.
A. Make choices that are right for you. B. The goal of an ads to sell you something. C. Be sure to work through the critical questions. D. And examine the findings of the original research. E. Distinguish between research reports and public health advice. F. Be aware that information may also be incorrectly explained by an author's point of view. G. The following suggestions can help you sort through the health information you receive from common sources. |
Pictures are falling off the walls. Lights are waving. Bed is shaking. Everything is moving. What's going on? It's an earthquake.
Earthquakes are horrible disasters(灾难)and some of them are destructive, The top layer of the earth is made up of huge pieces of rock. They move past each other all the time along fault lines(裂纹线). But sometimes two pieces get stuck together. When they finally move away from each other, they move suddenly. And this makes the land above them shake. This is the most common cause of earthquakes.
During a small earthquake, you will feel a little shaking. But during a strong one, you will be thrown about. A strong earthquake is very horrible. Cracks will appear on the ground and windows and doors will break. Buildings will even fall down. So watch out! I f an earthquake happens at sea, it can make big waves called "tsunamis" (海啸). When these waves reach land, they can destroy villages.
Earthquakes are measured on a scale of 0-9. It is called the Richter scale. A size 9 earthquake is the strongest and most dangerous. Since 1900, more than two million people have died in earthquakes. In 1976, a size 7. 8 earthquake hit Tangshan, China. It killed more than 240, 000 people!
Many earthquakes happened in China, so it is important for us to know what to do when an earthquake hits. Here are some tips on how to stay safe in an earthquake.
Indoors
※Hide under a desk or bed. Stay away from windows and anything that could fall on you.
※Do not get into a lift during an earthquake! When an earthquake has ended, stay under the desk until it is really safe to get up.
※Open a window and get out of the building quickly if the gas line in your house is broken.
Outdoors
※Move away from buildings and street lights.
※Do not run outside if you are in a shop and far from the door.
※Make sure you wear shoes after an earthquake. There may be broken glass on the ground.
Suggested questions:
1. When and where did you meet the friend for the first time?
2. Why do you think the friend is special?
3. What made your first meeting do impressive/ unforgettable?
4. How are you getting along with each other?
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