湖南省2024年七年级（下）期中考试试卷数学.考卷答案

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湖南省2024年七年级（下）期中考试试卷数学.考卷答案试卷答案

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2023高考名校导航金卷·英语（三）参考答案、提示及评分细则听力部分录音稿(Text1)M:Whatwouldyoulikeonyoursandwich?W:CanIhavecheese,ham,andmustardbutnotomatoplease?Andacoffeetogo.M:Certainly.I'llbebackinafewminutes.(Text2)M:DidyouorderthebirthdaycakeforSarah'sparty?W:Itwassuchabusyday.Itotallyforgotaboutthat.M:Don'tworry.Iwillcollectittomorrowmorning.(Text3)M:Iwasthinkingofgoingtothemalltoday.Wouldyouliketojoinmeafterthisclass?W:Thatsoundslikefun.I'lljustneedtostopbythebanktogetsomemoneybeforewego.(Text4)M:Onlyanhourleftbeforethepublicsaleisover!ShouldIbuythenecklaceorthatring?W:Ithinkyourmotherwouldliketheearringsbetter,andthey'reatareasonableprice.(Text5)M:Iknowwhyyoucan'tgettosleepatnight.It'sbecauseyouaredrinkingthatstuffsolateintheevening.W:ButIalwayshaveacupafterameal.Besides,ithelpsmedigestmyfood.(Text6)M:I'dquiteasuccessfuldayyesterday.Ifinallygotthecarrepaired,IappliedforanewjobandIwrotealonglettertomysister.W:Didyoutakethecattothepethospital?M:Yes!Sorry,Iforgottomentionthat.W:I'mgladyouwrotetoyoursister,andnowthatthecarisfixed,Imustgoandvisither.M:Iwishshelivedcloser.Itoldherthatintheletter.W:Icouldtakeherapresentifyoulike.M:IwaslookingforsomethingintheshopsonTuesday,butfoundnothingsatisfactory.(Text7)W:ShouldIchangemyhairstyle?I'vehaditshortforalongtimenow.MaybeIshouldgrowittoamediumlength.M:Ialwayslikedyourhairwhenyouwereyoungerandyouhaditlong.Itreallysuitedyou.W:Maybe.Butlongerhairlooksbetteronyoungerwomen.EachtimeIhadachild,Ihadadifferenthairstyle-longforthefirst,mediumlengthforthesecondandfinallyshort.M:Ithinkthechildrenhaveprobablygotusedtoseeingitshort.Maybeyoushouldhaveitmedium-lengthagainasacompromise.W:Ithinkyou'reright.IcutitmymyselfinthepastbutmaybeI'llhavetostartgoingtoasalon.M:Whydon'tyouaskyoursistertodoit?Herhairisniceandshedoesitherself.W:Goodidea.I'llaskhertomorrow.(Text8)W:Goodmorning!Welcometotheoffice.M:Thankyou.I'mexcitedtobehereandlearnmoreaboutthenewjobposition.W:Let'sbegintheinterview.It'sajuniormanagementroleinourNewMediaOffice,andyou'llbedirectlyreportingtoMrHawkr,whoistheheadofthedepartment.Canyoutellmeaboutyourjournalismexperienceandthejobrolenow?M:Istartedatalocalnewspaperasaneditorfouryearsago.Iwrotepublicintereststoriesforthenewspaperandwhenwestartedtoexplorethesocialmedia,Imanagedseveralmediaaccountsthatlinkedtoourwebsite.Iamnowa【2023高考名校导航金卷·英语（三）参考答案第1页（共4页）】

8.纯合黄色小鼠(A^vyA^vy)与纯合黑色小鼠(aa)杂交,F1小鼠并未表现出黄色,反而呈现出介于黄、黑色之间的一系列过渡类型。基因测序显示,不同毛色的F1小鼠A^vy基因的碱基序列完全一致,在A^y基因的前端有一段特殊的碱基序列可发生甲基化,其甲基化程度越高,基因表达受到的抑制越明显,小鼠体毛的颜色越深。下列说法错误的是A.若要排除毛色差异由环境因素引起,则F1生活环境应相同B.F1小鼠的A^vy基因碱基序列一致,说明毛色差异与基因突变无关C.F1小鼠的体色差异与不同个体含有的显性基因数目有关D.小鼠A基因甲基化后基因表达和表型发生的变化属于表观遗传