话说中考目前随着人们生活水平的不断提高,业余生活也越来越丰富,购物成为人们生活中最为重要的活动之一,这就需要我们不断地参与社会实践,多了解有关购物的知识;饮食与健康也成为人们较为关注的话题,较高的生活水平和良好的饮食条件,给我们的健康带来丰富的营养的同时,也给我们带来了烦恼……,所以,这自然就成为我们中考的热点
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走进中考(苏州•2010)Whydoyouthinkpeoplewholiveinsomehotcountrieseatveryspicy(辛辣的)food
Isitbecausethespicesmakethefoodtastebetter
Isitjustbecausetheirparentsandgrandparentsandgreat-grandparentslikedhotfood,oristheresomeconnectionbetweenspicesandhealthyfood
ResearchersfromCornellUniversitythinkthatitisbecausespiceplantshavesomeimportantchemicals(化学物质).Thesechemicalscankillbacteria(细菌)whichspoilfood."Mostcommonspicescankill75to100percentofthebacteriainfood,"explainsoneofthescientists.Thebacteriagrowmoreeasilyandspoilfoodmorequicklyathighertemperatures.Forthisreason,itismoredifficulttokeepfoodfromspoilinginhotclima