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C
There's a belief that it is inadvisable to have plants in the bedroom. The concern is about how plants breathe. While plants take in carbon dioxide and release oxygen in the day, at night this is the opposite.
Secondly, we should compare the impact of plants on air quality with that of other potential competitors, such as a partner. A single human breath contains around 40,000 ppm of CO₂, more than 10 times the effect a plant could have in 8 hours.
Finally, it is obvious that we don't live in the sealed boxes in which these studies are carried out.
In conclusion, the plant effect in our homes is very small in many ways.
A. Firstly, how do plants breathe at night?
B. So enjoy houseplants whenever you like.
C. Firstly, do plants emit more CO₂ at night?
D. Camping can be a good escape if you are worried.
E. This means they compete with us for air when we sleep.
F. Indoor air is constantly exchanged through doors and windows.
G. So you might want to send your partner away before your plants.
11.
D
There's a belief that it is inadvisable to have plants in the bedroom. The concern is about how plants breathe. While plants take in carbon dioxide and release oxygen in the day, at night this is the opposite.
E
11 But to tell whether sharing our bedroom with our plants is a risk to health, we have to consider three things.C
12 This is tricky to answer as it depends on everything from species to light levels and even room temperature. Also, there's not much research on the exact measurements in indoor settings. Thankfully, in 2015, researchers at Türkiye's Kastamonu University found that houseplants like ficus(榕树) and yuccas(丝兰), when sealed(密封) in glass boxes, absorb between six and eight times as much CO₂ in the day as they emit at night. This results in a significant net reduction over a full day.Secondly, we should compare the impact of plants on air quality with that of other potential competitors, such as a partner. A single human breath contains around 40,000 ppm of CO₂, more than 10 times the effect a plant could have in 8 hours.
G
13 Also, consider this. Indoor plants grow in less light than they would ideally get in nature. So, they photosynthesize(光合作用) at a lower rate. This further reduces their impact on air quality.Finally, it is obvious that we don't live in the sealed boxes in which these studies are carried out.
F
14 Even our movements can influence its flow.In conclusion, the plant effect in our homes is very small in many ways.
B
15 If sleeping near plants were bad for your health, camping in a forest would be definitely deadly.A. Firstly, how do plants breathe at night?
B. So enjoy houseplants whenever you like.
C. Firstly, do plants emit more CO₂ at night?
D. Camping can be a good escape if you are worried.
E. This means they compete with us for air when we sleep.
F. Indoor air is constantly exchanged through doors and windows.
G. So you might want to send your partner away before your plants.
11.
E
12. C
13. G
14. F
15. B
D
答案
11.E 12.C 13.G 14.F 15.B
【语篇解读】本文是一篇说明文。文章主要就植物晚上是否会影响人类的问题进行了解释说明。
11. E 解析:根据上文"There's a belief that it is inadvisable to have plants in the bedroom. The concern is about how plants breathe. While plants take in carbon dioxide and release oxygen in the day, at night this is the opposite.(有一种观点认为卧室里不宜放植物。人们担心的是植物如何呼吸。白天,植物吸收二氧化碳,释放氧气,而到了晚上,情况却恰恰相反。)"可知,上文提到植物晚上吸收氧气,呼出二氧化碳。由此可知,本句应说明植物晚上对人的影响,E选项"这意味着它们在我们睡觉时与我们争夺空气。"符合语境。故选E。
12. C 解析:根据下文"This is tricky to answer as ... a significant net reduction over a full day.(这个问题很难回答,因为它取决于各种因素,从物种到光照水平,甚至是室温。此外,关于室内环境中的精确测量的研究也不多。值得庆幸的是,2015年,土耳其Kastamonu大学的研究人员发现,榕树和丝兰等室内植物被密封在玻璃盒中时,白天吸收的二氧化碳是夜间排放的6到8倍。这导致了一整天中显著的净减少。)"可知,本段主要介绍了关于植物夜间排放二氧化碳量的研究,C选项"首先,植物在夜间排放更多的二氧化碳吗?"提出问题,引出下文实验,符合语境。故选C。
13. G 解析:根据上文"Secondly, we should compare the impact of plants on air quality with that of other potential competitors, such as a partner. A single human breath contains around 40,000 ppm of CO₂, more than 10 times the effect a plant could have in 8 hours.(其次,我们应该在对空气质量的影响方面比较植物与其他潜在的竞争对手,如伴侣,一个人的呼吸含有大约40 000 ppm的二氧化碳,比植物在8小时内产生的影响的10倍还多。)"可知,本句与上文构成因果关系,指出伴侣对人的影响比植物造成的更大。G选项"所以你可能想在打发你的植物之前先把你的伴侣打发走。"符合语境。故选G。
14. F 解析:根据上文"Finally, it is obvious that we don't live in the sealed boxes in which these studies are carried out.(最后,很明显,我们并不是生活在进行这些研究的封闭盒子里的。)"可知,本句承接上文,说明我们不是生活在封闭盒子,居所存在气体交换的通道,F选项"室内空气通过门窗不断交换。"符合语境。故选F。
15. B 解析:根据上文"In conclusion, the plant effect in our homes is very small in many ways.(总之,在很多方面,我们家中的植物效应是非常小的。)"可知,本句与上文构成因果关系,指出植物对人的影响小。B选项"所以只要你喜欢,随时都可以欣赏室内植物。"符合语境。故选B。
【语篇解读】本文是一篇说明文。文章主要就植物晚上是否会影响人类的问题进行了解释说明。
11. E 解析:根据上文"There's a belief that it is inadvisable to have plants in the bedroom. The concern is about how plants breathe. While plants take in carbon dioxide and release oxygen in the day, at night this is the opposite.(有一种观点认为卧室里不宜放植物。人们担心的是植物如何呼吸。白天,植物吸收二氧化碳,释放氧气,而到了晚上,情况却恰恰相反。)"可知,上文提到植物晚上吸收氧气,呼出二氧化碳。由此可知,本句应说明植物晚上对人的影响,E选项"这意味着它们在我们睡觉时与我们争夺空气。"符合语境。故选E。
12. C 解析:根据下文"This is tricky to answer as ... a significant net reduction over a full day.(这个问题很难回答,因为它取决于各种因素,从物种到光照水平,甚至是室温。此外,关于室内环境中的精确测量的研究也不多。值得庆幸的是,2015年,土耳其Kastamonu大学的研究人员发现,榕树和丝兰等室内植物被密封在玻璃盒中时,白天吸收的二氧化碳是夜间排放的6到8倍。这导致了一整天中显著的净减少。)"可知,本段主要介绍了关于植物夜间排放二氧化碳量的研究,C选项"首先,植物在夜间排放更多的二氧化碳吗?"提出问题,引出下文实验,符合语境。故选C。
13. G 解析:根据上文"Secondly, we should compare the impact of plants on air quality with that of other potential competitors, such as a partner. A single human breath contains around 40,000 ppm of CO₂, more than 10 times the effect a plant could have in 8 hours.(其次,我们应该在对空气质量的影响方面比较植物与其他潜在的竞争对手,如伴侣,一个人的呼吸含有大约40 000 ppm的二氧化碳,比植物在8小时内产生的影响的10倍还多。)"可知,本句与上文构成因果关系,指出伴侣对人的影响比植物造成的更大。G选项"所以你可能想在打发你的植物之前先把你的伴侣打发走。"符合语境。故选G。
14. F 解析:根据上文"Finally, it is obvious that we don't live in the sealed boxes in which these studies are carried out.(最后,很明显,我们并不是生活在进行这些研究的封闭盒子里的。)"可知,本句承接上文,说明我们不是生活在封闭盒子,居所存在气体交换的通道,F选项"室内空气通过门窗不断交换。"符合语境。故选F。
15. B 解析:根据上文"In conclusion, the plant effect in our homes is very small in many ways.(总之,在很多方面,我们家中的植物效应是非常小的。)"可知,本句与上文构成因果关系,指出植物对人的影响小。B选项"所以只要你喜欢,随时都可以欣赏室内植物。"符合语境。故选B。
