《The Economist 经济学人》文章语篇填空改编2 -2024届高三英语二轮复习

语篇填空一 主要内容：最新研究表明微生物对于茶叶至关重要，适当微生物的的存在会促进拟南芥的生长。中国学者发现各类茶叶中茶氨酸的产生大不相同，研究人员将肉桂茶和毛蟹茶进行比较，进一步研究发现微生物能影响茶氨酸的产生。此外，合理运用微生物能让茶叶产生新风味，并减少农业污染。 Scientists are increasingly aware that the fungi(真菌) and bacteria living around a plant's roots can 1._________(significance) affect its growth. Previous studies on Arabidopsis (拟南芥) , a species of cress (水芹) have shown that the 2.________(present)of the right organism can enhance the absorption of critical nutrients like iron, phosphorus and nitrogen. The possibility of enhanced nitrogen absorption particularly attracted tea experts Wei Xin and Wenxin Tang at Fujian Agriculture and Forestry University in China, for tea plants rely upon nitrogen-rich ammonium(氨) in the soil around their roots 3._________ (produce) theanine (茶氨酸), an amino acid that generates their unique flavours. 4._________(collect) the roots and leaves of 17 different tea varietals(品种)at different times of year, they found that theanine production varied widely. Some highly valued Wulong teas, such as Rougui, produced more theanine than 5._________the of Maoxie. After growing these two varietals under identical conditions, the researchers collected soil samples and used 6._________ (gene) analysis to identify which microbes were present around the roots. They found Rougui not only had more microbes associated 7._________ the metabolising of nitrogen than did Maoxie, but also showed a greater ability to absorb nitrogen from ammonium in the soil. Flavours aside, the Rougui microbe sample has the potential to make 8._________ wider environmental impact. Most farmers add some form of nitrogen to their soil to enhance growth. While some of this 9._________ (absorb) by plants, most runs off during heavy rains and ends up polluting natural water bodies. When the researchers applied their microbial cocktail to soil around the roots of Arabidopsis plants, they found that the newcomers enhanced nitrogen uptake,10._________ hints that these microbes have the potent