河北省2025-2026学年第一学期期中教学质量检测八年级英语试题
河北省2025-2026学年第一学期期中教学质量检测八年级英语试题正在持续更新,目前2026天舟高考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。
本文从以下几个角度介绍。
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1、河北省2023-2024学年度八年级期末检测卷英语
2、河北省2023-2024学年第二学期期中教学质量检测八年级
3、河北省2024到2024学年第二学期八年级英语
4、河北省2023-2024学年第一学期期中检测英语
5、河北省2023-2024学年第一学期期中八年级
6、河北省2023-2024学年八年级第二学期阶段性检测
7、2024河北区八下英语期末试卷
8、河北省2023-2024学年八年级期中考试
9、河北省2023-2024学年度八年级期末检测卷(一)
10、河北省2023-2024学年度第一学期期中检测八年级
COn ahot summer aftermoon,a child eagerlywatchedas their grandmother sliced asun-ripenedsugar alwaysmadeonelickplatesclean.Decadeslater,thatsamechild,nowan adult,findsdisappointedlysupermarkettomatoesfirmtothetouch,paleincolour,andtotallylackingintherichflavor.Beyondamerelossinourchildhoodmemory,theshiftisameasurabledeclinerootedinthefarmingchangesandmodernneeds.Thedeclineinmodern tomatoflavorresultsfromdisturbedsugar-acidbalance.TraditionalAcademyofAgricultural Sciences(SAAS)shows alarmingtrends:pinktomatoeslostover26%sugar-acid ratio,while red types dropped 22%,coupled with rising organic acids.This imbalancecreatessour-dominatedflavorswithweakenedsweetness.to createarichflavor.They canmake ourbrain sensemore sweetness evenwhen the sugarlevel staysthesame.However,inmodernfarming,peoplehave accidentallyremoved thegenes(基因)forthesetastecomponentswhilefocusing onhigher output and diseaseresistance.Commercial pressures alsoplayarole.Foreasiershipping,tomatoesareharvestedbeforetheyarematureandsubjectedtocoldstorage.Thesepracticesunintentionallyaffecthowflavor-givingchemicalsarereleased,leavingtomatoesstructurallyundamagedbutflavorless.Hope,however, lies in the gene pool of traditional and wild tomato varieties. A 2019comprehensive study ongenes,analyzing over700 tomato types,identified4,873previouslyundocumented genes, including rare genetic variations that improve flavors.By reintroducing these“lost”geneticelementsthroughscientificmethods,scientists aimtobalancemarketabilityandtastequality. The challenge remains complex, yet the solution is clear: to rediscover the flavors in ourchildhoodmemory,wemustfirstunderstand thegeneticcodes(密码)leftbehindinthedriveforprogress.A.Toexplain thehealthbenefitsoffreshtomatoes.B.To showthechange in tomatoflavorover time.C.Tohighlightthesignificanceofafamilytradition.D.Toillustratethedisappearanceofasummerdelight.29.What doesSAAS's recent study find?A.Highersugarlevelsinmoderntomatoes.B.More organic acids in traditional tomatoesC.The loss of sweet-sour balancein tomatoes.D.Taste difference between pink andred tomatoes英语试卷B第4页(共10页)4
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