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[originaltext] Everybody loves the swimming pool. But how clean is the water
[originaltext] Everybody loves the swimming pool. But how clean is the water
游客
2025-01-17
9
管理
问题
Everybody loves the swimming pool. But how clean is the water in the average backyard or public pool? If you trust chlorine to take care of germs, you’re in for a surprise.
Chlorine and other disinfectants do indeed help to clean the water, but some germs can survive in even the best-kept pool. For example, cryptosporidium may live in pool water for several days. Crypto causes a diarrhea illness and may rinse off the bodies of infected people or diapered children into the pool. If you swallow infected pool water, you may become sick.
Other germs may live for a few minutes or a few hours in a chlorinated pool: Giardia, Shigella, and E. Coli may cause diarrhea illnesses. Pseudomonas Aeruginosa may cause an ear infection called swimmer’s ear and also a skin infection called "hot tub rash", that is usually associated with very warm pools and spas.
选项
A、Swimming pool is a very dirty place.
B、Many germs can cause diarrhea illness.
C、Prevention is necessary when swimming because there are many germs exist even in the best-kept pool.
D、Chlorine and other disinfectants can take care of the germs in the water.
答案
C
解析
本题考查的是考生是否充分理解了文意。选项a(游泳池很脏)和b(许多细菌都会导致痢疾)文章中都提到了,选项d(氯和其他灭菌剂可以完全杀灭池水中的细菌)与文意相左,而选项c(即使维护很好的池水中也难免有不少细菌,所以加以防范非常必要)很好地总结了文章的要旨。
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