年中考英语必读时事热点1文章导读一、阅读理解这是一篇科普类型说明文,对新型冠状病毒的是什么及来源进行说明和探究
二、完形填空人物传记钟南山介绍三、阅读理解“山川异域,风月同天”日本援助物资现暖心古诗四、阅读填空如何防止新型冠状病毒传染五、阅读选词填空新型冠状病毒战役介绍六、书面表达保护野生动物一、阅读理解SinceDecember,therehavebeentensofthousandsofCOVID-19casesbothinandoutofChina,causedbyapreviouslyunknownvirus:novelcoronavirus(新冠病毒)
It’snotthefirsttimeforvirusestomakeheadlines
Viruseshavebroughtbigtroubletohumans,withtheirpotentialtocausewidespreaddiseaseanddeath
Whatarethey
Virusesareconsideredtobenon-livingorganisms(有机物)
Theycaninfectanimalsandplants,makingthemsick
TheycontaingeneticmaterialslikeDNAandareprotectedbyacoatingofprotein
Unlikebacteria(细菌),virusescan’treproduceontheirown
Instead,theyinvadedthecellsoflivingorganismstoreproduce,spreadandtakeover
Butthebasicquestionis:wheredidvirusesfirstcomefrom
Untilnow,noclearexplanationfort