题型:阅读选择 题类: 难易度:普通
湖南省邵阳市邵阳县2023-2024学年八年级上学期期末考试英语试题
When we are in the wild, we find that water is important for us to live. There are many ways to get some clean water. For example, if there is fire and enough water, the best way is to boil the water. But in many cases, there doesn't seem to be any safe water available.
Can you think of a way of cleaning dirty water by using the sun? In this activity, you will make a "solar still (太阳能蒸馏器)". Let's get started to make pure water (纯净水)!
Things to prepare:☆a wide plastic basin (塑料盆) ☆a large piece of plastic paper ☆a smaller glass for collecting the clean water ☆a thin string (绳子) ☆salt and stone Steps: ⒈Mix salt with water. Put salty water in your basin. ⒉Put your collecting glass in the middle of your basin. ⒊Cover the basin with the plastic paper. Use a string to seal off the edges (封住边缘). ⒋Place a stone in the middle of the plastic paper just above your collecting glass. ⒌Carefully move the solar still into the sun so that the sun can heat (加热) the salty water and turn it into vapor (水蒸汽). … |
The World Earth Day is on April 22nd. Here at Greenpeace, we know how much you want to make a positive difference to your world. So, read on to find out how to protect our earth.
http://www.greenpeace.org.cn/Have a greener, healthier, and more peaceful planet. | |
Save energy and water! ◇ Before leaving home, make sure to turn off the electricity. Take great effort to develop wind power and so on. ◇ If you can, try bicycling, walking, or using public transportation to get out instead of using the car. ◇Don't let water run while brushing your teeth and take short showers of four minutes or less. | Be a pioneer! ◇ Share your knowledge with others and help them become eco-heroes too. It takes lots of people working together to make changes happen. So share, share, share. ◇ Volunteer with more friends. Write to some companies to stop them working together with people who are harmful to the forest. |
Reduce, reuse, and recycle! ◇ Before you throw something away, stop and think about what else it could be used for. ◇ If you don't want to keep some things, try to find out who else needs them. Our goal is to keep usable things out of landfills (堆填区). | Be friendly to wildlife! ◇ Make your garden wildlife-friendly. You could build a bee hotel, provide some food, or even create a pool. ◇ If you own a cat that goes outdoors, put a bell around its neck so that little wildlife can hear it coming and run away quickly. |
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