Nature is very magic. Many things can produce electricity. Not only lightning but some animals also produce electricity. For example, some fish produce enough electricity to hurt other animals while others produce electricity to avoid being hurt.
People have tried many ways to produce electricity. Let’s look at some inventions that use and produce electricity.
Windmill (风车) | In 1927, the brothers Joseph Jacobs and Marcellus Jacobs opened a factory to produce windmills for farm use. |
Steam engine | Thomas Newcomen was an English inventor who created the first practical (实用的) steam engine for pumping water (抽水). |
Battery | In 1800, Alessandro Volta was the first person to succeed in producing electricity in this Way. |
Light bulb | Thomas Edison invent the first practical light bulb in 1879 with months’ effort. |
1. How does the writer tell us many things in nature can produce electricity?
| A．By telling us a story. | B．By making a list of numbers. |
| C．By answering questions. | D．By giving examples. |
| A．Farmers. | B．Workers. | C．Teachers. | D．Drivers. |
| A．In 1880, Thomas Newcomen created electricity. |
| B．Alessandro Volta invented the first train engine. |
| C．Some fish can produce electricity to protect themselves. |
| D．Thomas Edison made the light bulb after weeks’ effort. |
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【推荐1】Some artists love the idea of using paintbrushes and canvases (画布) while some prefer carving (雕刻) on wood. Some use cameras in their art works with watercolors. All of these are ordinary in our mind. Today I will introduce a special artist to you.
As we all know, spilling coffee is never fun, but Steven Kuhnigk doesn’t think so. He is a German designer. He has been turning coffee stains (污渍) into cute monsters (怪兽). One day, his coffee left a stain on a piece of paper. He looked at it. The stain seemed to look back at him. It was saying, “Draw me, draw me, draw me!” So, he did. That was his first Coffee Monster.
Steven has drawn about 600 Coffee Monsters. He also wrote a back story for each of them. People are in love with the monsters. Someone even wrote to Steven. She said the monsters made her happy every day.
Steven is drawing more Coffee Monsters. “It never gets boring for me, ” he said, “because a spill is never the same.”
1. Artists don’t usually use ________ to create their works.| A．canvases | B．cameras | C．wood | D．food |
| A．Because his works are made of wood. |
| B．Because he uses cameras in his works. |
| C．Because he creates his works on canvases. |
| D．Because he changes coffee stains into cute monsters. |
| A．interesting | B．funny | C．boring | D．difficult |
| A．Steven comes from German. |
| B．Steven is interested in drinking coffee. |
| C．Each Coffee Monster has a back story. |
| D．Steven has drawn hundreds of Coffee Monsters. |
【推荐2】
A 16-year-old boy named Li Tao lived in a small town in China. One day, while Li Tao was doing his science homework, he came up with a great idea. He worked out a way to make a new type of power supply (供应) for his town, which had a problem with its electricity supply.
To make his idea come true, Li Tao began to experiment at home. He was so confident that nothing could stop him from inventing. He made and took apart many models. Even though he faced lots of challenges and failures, he didn’t give up. He fixed his mistakes, changed his plans, and kept working hard.
After two years of hard work, he finally succeeded. He made a small device (设备) that could change wind power into electrical power successfully. This was a new, environmentally-friendly way for his town’s power problem.
News about Li Tao’s invention quickly spread around his school and town, and everyone really took pride in his achievement. The group of science-technology of the town decided to help him improve the invention. He was invited to give a speech to encourage other teenagers to learn more about science and be more creative in the Science and Technology Meeting.
His story encourages teenagers that being young is not a barrier (阻碍) to achieve their dreams. Even a common teenager can do something amazing!
1. What was the problem of the town where Li Tao lived?| A．Water pollution. | B．Experiment device testing. |
| C．Electricity supply. | D．Wind power lightning protection. |
| A．encouraged other teenagers to join him |
| B．fixed his mistakes and kept working hard |
| C．gave a speech and learnt more about science |
| D．asked the group of science-technology for help |
| A．Excited. | B．Proud. | C．Confident. | D．Surprised. |
【推荐3】We all know the Sun is important. It gives sunshine to plants, animals and people on the Earth.
We can also turn the Sun’s light into electricity. It has something to do with solar panels（太阳能电池板）.
But what happens when it is cloudy or rainy? Solar panels cannot collect energy from sunlight on cloudy and rainy days.
At the same time, solar energy is good for the environment.
| A．They collect energy from sunlight to make electricity. |
| B．It will not pollute the air and water. |
| C．But how does the Sun do that? |
| D．People started to use solar energy many years ago. |
| E．It can produce electricity from water. |
| F．You can do many things to protect the environment. |
| G．We needn’t worry about it. |
【推荐1】Early to bed and early to rise (起床) makes a man healthy, wealthy and wise. This is an old English saying. It means that we should go to bed early at night and get up early in the morning. If we do, we shall be healthy. We shall also be rich and clever.
Is this true? Perhaps (可能) it is. The body must have enough sleep. Children of your age need nine hours’ sleep every night. If you go to bed late, you can’t have enough sleep. Then you can’t think carefully and your homework will be wrong. You will not be wise and you may not become wealthy (富有的)!
Some people go to bed late at night and get up late in the morning. This is not good for them. We should sleep at night when it is dark. The dark helps us sleep well. When the daylight comes, we should get up. This is the time for exercise. If the body is not used, it will become weak. Exercise keeps it strong.
Exercise helps the blood (血液) to move around inside the body. Blood takes nutrition (营养) to all parts of our bodies. The brains in our heads also need blood. We think with our brains. If we keep our bodies healthy, and take exercise, we can think better!
Our bodies also need air to breathe (呼吸). Without air we will die. Get up early in the morning and we can have plenty (大量的) of clean, fresh air. That will keep us healthy and happy.
1. The old English saying tells us ________.| A．why we should get up | B．how to make save money |
| C．when we should go to bed | D．the importance of going to bed and getting up early |
| A．7 | B．8 | C．10 | D．9 |
| A．have enough sleep | B．exercise often | C．go to bed early | D．eat more |
| A．Enough sleep makes you think carefully. |
| B．We need fresh air. |
| C．Blood provides nutrition for our brains. |
| D．The more sleep you have, the smarter you are. |
【推荐2】No matter who we are, where we are, or what we do, we cannot live without water. It is the source of all life and we need it every day. But in truth we’re facing serious water problems.
Although water covers 71 percent of the earth’s surface, we can only use a very small amount of it. Only about 3 percent of the world’s water is fresh water. It’s in lakes, rivers and underground. Today, there are over 663 million people living without a safe water supply close to home, according to the United Nations.
To remind people of the importance of water, the UN first set up World Water Day in 1993. It is held on March 22nd each year. And this year’s theme is “wastewater”.
According to the UN, wastewater problems make water shortages (短缺) even more serious. Most of the wastewater from our homes, cities, industry and agriculture flows directly back to nature. Instead of letting it pollute the environment, the industries need to treat it first.
China takes actions to deal with water problems too. From March 22nd to 28this the China Water Week, during which the Chinese government promotes (推广) the new policy of “river chiefs” to the public.
Just as every province, city and county (县) has a leader, every river will have a chief too. China passed the policy at the end of 2016 and carried it out nationwide in 2019. Local government heads will be river chiefs. They will be responsible for all rivers and lakes in their regions. They need to make sure that industries treat the wastewater before it goes into nature. They also need to clean up the polluted waters, like the blue algae (蓝藻) pollution in Taihu Lake, Jiangsu.
1. From the second paragraph, we know that ________.| A．waste water problems make water shortage even more serious |
| B．fresh water can be found in lots of places like lakes, rivers and underground |
| C．people can live without water for a long time |
| D．there’s much water on the earth so we can use as much as we want |
| A．演变 | B．意义 | C．源泉 | D．材料 |
| A．World Oceans Day | B．World Health Day |
| C．World Environmental Day | D．World Water Day |
| A．Most of the wastewater flows directly back to nature. |
| B．Wastewater flows directly to our homes. |
| C．The policy “river chiefs” was carried out nationwide before 2016. |
| D．Industries have done something to treat the wastewater before it goes into nature. |
| A．a novel | B．a newspaper | C．a travel guide | D．a fashion magazine |
【推荐3】Have you even seen fireflies? Fireflies are small insects. You can’t see them in any season except summer. The lights made by fireflies are probably one of the most magical things to see on a summer night. Do you wonder how fireflies make this light?
There is a part that can make light under a firefly’s stomach. Fireflies take in air and use it to produce light with special cells（细胞）. Different kinds have their own special flash patterns, just like humans have different languages. They use these flash patterns to find other members of their group.
Fireflies mainly use the light to get friends’ attention. The males（雄性）fly around while turning their lights on and off, hoping to get the attention of a female. They try to flash very quickly, because the faster males flash, the more attention they can get from females. Fireflies also use the light to make their enemies scared.
If you haven’t seen many fireflies lately, you are not alone. The number of fireflies may be dropping because of some reasons, such as light pollution and chemical medicine use. Another important reason is that fireflies’ living places are destroyed by humans. Luckily, Chinese scientists recently found three new firefly kinds in Yunnan. Yunnan might have the right environment for these magical insects to live in.
1. Which of the following is TRUE about fireflies?| A．Fireflies can live in any season like humans. |
| B．Now there are only three kinds of fireflies in Yunnan. |
| C．Fireflies use air to produce light with special cells. |
| D．Fireflies use magic to make light on a summer night. |
| A．Because of less people’s attention. |
| B．Because of chemical medicine use. |
| C．Because of places in Yunnan. |
| D．Because of light fireflies make. |
| A．By giving examples. | B．By telling a story. |
| C．By listing numbers. | D．By giving explanations. |
| A．Firefly Can Make Light |
| B．The Magical Place—Yunnan |
| C．The Magical Insect—Firefly |
| D．Firefly Have Special Cells |
