Unit 8 选词填空练习 2023-2024学年鲁版英语九年级全册

Unit 8 We’re trying to save the earth! 选词填空练习 A something, solve, into, advantage, plant, one, pollute, different, instead, recycle The air is badly polluted around us because our cities have many factories that burn coal. Every year these factories give out a large amount of black smoke 1._________ the air. Besides，there are more cars in cities now. There are some ways 2._________ the problem. 3._________ of all，we should ask the factories to stop giving out black smoke into the air. Next，we'd better ride bikes or walk 4._________ of driving to school. The 5._________ of bike riding or walking are that it's good for health and it doesn't cost 6._________．What's more，it's a good idea to plant more trees and flowers. 7._________ trees not only makes the air cleaner，but also makes our environment more beautiful. Finally，we need to 8._________ books and paper and stop using paper napkins. That can help us cut down fewer and fewer trees. I think everyone should play a part in solving the air 9._________.I'm sure that our actions can make a 10._________ and lead to a better future. B star, still, good, rest, up, how, pollution, small, see, towards Look up at the sky at night. What can you see? Before electric lights, people could often see about 2,500 different stars. Now, light fills the skies over our cities. This is called light 1._________. Because of it, people in cities can often only see about ten 2._________! Most of the time, light helps us. We can 3._________ because of it. It gives plants energy. But light isn’t always 4._________. We need times of dark. One hundred years ago, we had those times of dark 5._________. Now the night is like day. Some scientists are worried about 6._________ this light effects(影响)our health. These scientists are studying the effects of light pollution. Other scientists are finding ways to stop light pollution and make our lives better. For example, many street lights now have covers. The covers focus the light 7._________