[真题密卷]2023-2024学年度单元过关检测(二)英语试题
[真题密卷]2023-2024学年度单元过关检测(二)英语试题正在持续更新,目前2025届国考1号答案网为大家整理了相关试题及答案,供大家查缺补漏,高效提升成绩。
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1、2024英语过关测试卷答案
03:592.505G79KB/s..D. He thinks regular cars are more fashionable,30.WhichofthefollowingcanNOThelpreducetrafficdeaths?A.Widening the main roads.B.Building more roundabouts.C.Evaluating cars for safety thoroughly.D.Separating pedestrians from high-speed traffic.31.What is the main idea of the text?A.The heavy price of bigger cars.B.Pathways to safer American roads.C.Weight matters more than we think.D.Safetybegins with smarter infrastructure.Dbreak down and can accumulate in our bloodstream and organs when ingested. They have been detected ineveryday items from tea bags to produce. Now,new research finds tiny plastic particles are hidden in yetanother product:chewing gum.The researchers tested 10 popular chewing gums:five natural and five synthetic(合成的).Participantswereinstructedtorinse(冲洗)theirmouths threetofivetimes todetermine thenumber ofmicroplasticsintheir mouths at the start of the experiment.They then chewed each type of gum for four minutes—and some foran extra 20minutes—while researchers collected saliva samples(唾液样本)atvarious points.While youmight think synthetic gums would contain more microplastics than natural varieties,the researchers found bothtypes released similar numbers—an average of 104 and 96per piece,respectively.Theteamalsofound94%ofmicroplasticswerereleasedduringthefirsteightminutesofchewing.Afterthat point, the number of microplastics lessened and then plateaued over the course of 20 minutes. As such,chewing gum for a longer period of time doesn't necessarily mean a person will consume more microplastics.The technologyresearchers used could merely identify microplastics 20 micrometers wide or largerthey couldhardly assess the smaller, nano-sized plastics,which means their microplastic counts are likely underestimates.While researchinto microplastics is still limited,microplastics essentially set off inflammation(炎症)inhealthy cells in our bodies. Thus,limiting how much gum you chew is not a bad idea,but we're all regularlyexposed tomicroplastics daily—and other products arelikely far riskier than a stick of gum.Since gums releasefor a new stick.Meanwhile,research suggests that synthetic gum degrades in about three years.Natural gum,on the other hand,breaks down'much faster and could,in theory,release more microplastics more quickly ifswallowed,according to the researchers.32.What do we know about chewing gum based on the study?A.Natural gum is free of plastie-based materials.B.Synthetic gum is more dangerous because it is artificial.C.Synthetic gum takes shorter chewing time to release microplastics.D. Natural gum releases almost as many microplastics as synthetic gum.33.What can we infer from the third paragraph?A.Microplastics disappear completely after 20 minutes.B.Microplasticreleasevariesgreatlywithchewingtime.C.Microplastic count gradually stabilizes after eight minutes.D.Microplasticreleaserate dives sharply after eightminutes.34.What is themajor limitation of theresearch?A.Insufficientgum varieties.B.An overly small sample size.C.Limitedduration ofchewing experiments.D.Inability to detect nano-scale plastic particles存网盘页面管理转Word笔记标注
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