2024-2025学年外研版七年级英语下册期中专题训练：选择型阅读理解（含答案）

中小学教育资源及组卷应用平台 中小学教育资源及组卷应用平台 2024-2025学年外研版七年级英语下册期中专题训练：选择型阅读理解 Just think that one day your poop (粪便) might help build greener homes. Surprised Scientists are working on it! Today we use bricks (砖块) to build houses. But when making bricks, lots of carbon dioxide (二氧化碳) comes out and pollutes the environment. Scientists found that adding poop to bricks could cut down the pollution. Using poop is good in other ways as well. Greener and cleaner Every year, lots of human poop is turned into sludge (污泥). The sludge is rich in silicon (硅), aluminum (铝) and calcium (钙). These things can make bricks. Scientists at the University of Technology Sydney in Australia tried to add different amounts of sludge to bricks. Too much sludge would make the bricks too soft. But mixing 15 percent of sludge can make the brick strong enough. And this can cut carbon dioxide emissions (排放) by 13 percent. Another good thing is that the germs (病菌) in the poop stay in the bricks. They won’t pollute the land and rivers. More water-resistant (防水的) In some villages in India, people mix cow dung (粪便) and mud to make their homes water-resistant. Scientists at the Delft University of Technology in the Netherlands studied this. They found that the dung is rich in fatty acids (脂肪酸). It can stop water from passing through. Based on their study, the team made new kinds of bricks with cow dung. They were 30 times better than today’s bricks in water-resistance tests. They believe that human poop could do this too! 1．What are the scientists working on A．Using poop to help make bricks. B．Keeping carbon dioxide inside bricks. C．Building clean houses without poop. D．Keeping pollution outside the house. 2．What will happen if scientists add 35 percent of sludge to bricks A．The bricks will turn into sludge. B．There will be no silicon in bricks. C．The bricks will be too soft to build houses. D．The bricks will be too strong to build houses. 3．What does the underlined word “They” refer to A．Germs. B．Bricks. C．Houses. D．People. 4．Why can cow dung help make houses water-resistant A．Because it is rich in calcium. B．Because it has fatty acids. C．Because it is stronger than bricks. D．Because it is cheaper than bricks. 5．What is the passage mainly about A．How scientists cut down pollution. B．What scientists need to make bricks. C．When we can build our houses greenly. D．Why it is good to use poop to build houses. Mr Brown is 75 years old. He lives in a small village. Mr Brown has three sons, David, Jeff and Stefan. They work in big cities. And they don’t come to see Mr Brown very often. The sons feel sorry for their father, so they built a big house for Mr Brown. And they give him much money. But Mr Brown isn’t happy about it. He always feels lonely because no one is with him. There is a school next to Mr Brown’s house. Some students often come and visit Mr Brown. He says, “I don’t want mon ... ...