专题07 阅读理解20篇-2023中考英语逆袭冲刺名校模拟真题特快专递（山东专用）

2023山东中考英语逆袭冲刺 名校模拟真题特快专递 第一期 专题07 阅读理解20篇 （2022·山东·青岛市崂山区育才学校二模）You might not expect it, but cows can lead to air pollution. Now scientists have shown that the pollution from cows can be cut by adding a little seaweed (海草) to their food. Cows have one stomach, but it has four separate parts. This allows them to process grass and other foods that humans can’t digest (消化). One of their stomach parts has a special chemical. It helps break down the grass into something the cow’s body can use. But the process produces lots of methane (甲烷), the world’s second worst greenhouse gas. Scientists first discovered that seaweed could help control methane from cows several years ago. But that work was done in a laboratory, and there were many questions about whether the idea could work in real life. In the lab studies, the cows were given some seaweed, and they ended up losing weight. That wasn’t helpful, since cows are often sold by weight. It also wasn’t clear if the seaweed would stop working if it was used for a longer period of time. Now, scientists studied 21 cows on a farm for about five months. They mixed a little seaweed with the cows’ food. The results were surprisingly good. Some cows produced 82% less methane. Even the worst-polluting cows produced 33% less methane. Over the five months, the scientists didn’t see any signs that the cows’ stomachs were getting used to the seaweed and starting to produce more methane again. Another good news came when they looked at the weight of the cows. The cows that were fed seaweed gained just as much weight as the other cows, but they didn’t need as much food. Although there are still some problems with the idea, it’s very good news that something as simple as feeding cows seaweed can help reduce some of the pollution. 1．Why can cows digest grass? Because ________. A．they have seaweed as their food B．they have bigger stomachs than humans C．their body can produce methane D．their stomachs have four separate parts 2．What happened t