安徽省部分市2023-2024学年高二上学期期末英语汇编：七选五

安徽省部分市 2023-2024学年高二上学期期末考试英语试题分类汇编 七选五 安徽省马鞍山市2023-2024学年高二上学期2月期末英语试题 第二节(共5小题;每小题2. 5分, 满分12. 5分) 阅读下面短文, 从短文后的选项中选出可以填入空白处的最佳选项。选项中有两项为多余选项。 It is believed that it’s dangerous to have plants in the bedroom. Plants take in carbon dioxide (CO₂) and produce oxygen (氧气) in the day. ____16____. The build-up of CO₂ is a real problem for indoor air quality, which has been shown to influence health, so it is easy to see where the concern comes from. But to consider whether sharing our bedroom with our plants can harm health, we should consider three things. Firstly, how much CO₂ do plants produce at night compared with what they take in during the day? ____17____ For the answer depends on everything from species to light levels and even room temperature. Thankfully, in 2015, researchers at Turkey’s Kastamonu University found that large houseplants take in between six and eight times as much CO2 in the day as they produce at night. ____18____A single human breath contains around 40, 000 ppm of CO2, more than 10 times the effect a plant could have in 8 hours, so you might want to throw your partner out before your plants. Finally, we don’t live in the sealed (密封的) boxes in which these studies are carried out. ____19____The air is even exchanged when we move around. According to one recent review, we need houseplants to keep indoor air fresh, and to fight some pollution. ____20____ Let’s enjoy houseplants whenever we like because if sleeping near plants were bad for our health, camping in a forest would be deadly. A. This is hard to answer. B. So, they are quite necessary. C. The question has more than one answer. D. Besides, we often share a room with someone else. E. Indoor air is being exchanged through doors and windows. F. At night they compete with us for the air we breathe while asleep. G. Secondly, compare the influence of a plant with that of a person sharing a room. 安徽省黄山市2023-2024学年高二上学期期末质量检测英语试题 第二节（共5小题；每小题2.5分，满分12.5分） 阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。选项中