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已知一个菱形的边长为5,其中一条对角线长为8,则这个菱形的面积为( )
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已知一个菱形的边长为5其中一条对角线长为8则这个菱形的面积为.
已知菱形周长为52一条对角线长是24则这个菱形的面积是.
已知菱形的边长为6一个内角为60°则菱形较短的对角线长是.
已知一个菱形的周长为20cm它的一条对角线的长为6cm那么这个菱形的另一条对角线的长为cm.
菱形的边长为5一条对角线的长为8则另一条对角线长为
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已知菱形的周长为20cm一条对角线长为6cm则这个菱形的面积是
已知菱形一条对角线为长10另一条对角线长是8则这个菱形的面积是.
已知菱形的周长是20cm一条对角线长为8cm则菱形的另一条对角线长为
已知菱形的周长为20cm一条对角线长为8cm则这个菱形的面积是cm2.
边长为5cm的菱形一条对角线长是6cm则另一条对角线的长是.
已知菱形的边长为5cm一条对角线长为8cm另一条对角线长为
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菱形的边长为5一条对角线长为8则此菱形的面积是
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已知一个菱形的边长为5其中一条对角线长为8则这个菱形的面积为.
菱形有一个角是有一条对角线长6为则菱形的边长为______________.
菱形的边长是10一条对角线长是12则此菱形的另一条对角线是
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已知菱形的面积为24cm2一条对角线长为6cm则这个菱形的边长是厘米.
8
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边长为5cm的菱形一条对角线长是6cm则另一条对角线的长是.
已知菱形一个内角为120°且平分这个内角的一条对角线长为8cm则这个菱形的边长为cm.
菱形的一个内角为120°且平分这个内角的一条对角线长为8cm则这个菱形的周长是_________.
已知菱形的边长是5cm一条对角线长为8cm则另一条对角线长为cm.
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Whatisthemeaningoflife?ItisaquestionthatIhaveaskedmyselfmanytimesovertheyears.FrankloncewroteThemeaningoflifeistogivelifemeaning.ThebestanswerIevercameacrosswaswrittenbythegreatpsychologist心理学家ViktorFranklwhosurvivedtheNaziconcentrationcamps纳粹集中营ofWorldWarII. WhenIwasayoungboyIgavemylifemeaningbysimplyplayingrunningswimminglaughingandridingmybike. WhenIwenttoschoolIgavemylifemeaningbylearningstudyinghardgettinggoodgradesandtryingtomakemymomanddadproud. IncollegeIfoundmeaningbydecidingwhatIwantedtostudyandwhatcareerIwantedtopreparefor. WhenIwasworkingasateacherIfoundmeaningbyhelpingopenyoungmindstonewideasandoldwisdom. WhenIgotmarriedIfoundmeaninginprotectingprovidingforandwatchingovermyspouse配偶. AndwhenIfoundoutthatbothofmysonswerebornwithmentalillnesses精神疾病Ifoundmeaninginlovingthemcaringforthemandlearningfromthemaboutlovepatiencefaithandjoy. Allwehavetodoisloveourselvesandothers.Itislovethatgiveslifemeaning.Itislovethatmakeslifeworthliving.AsIgotolderIbegantorealizethatmeaningisn'tsomethingthatcomesandgoes.Weareresponsibleforcreatingourownmeaning. 1.FromthestoryweknowthatViktorFranklwas. A.asoldier B.aphysicist C.apsychologist D.theauthor'steacher 2.WhichstatementaboutViktorFranklisRIGHT? A.Hehadbeenateacher. B.Hehadtwosonswithmentalillness. C.HehadahardlifeintheNaziconcentrationcampsofWorldWarII. D.Heandtheauthorweregoodfriends. 3.Whentheauthorwasateacheratschoolhefoundmeaningoflifeis. A.protectinghisspouse B.laughingandridinghisbike C.tryingtomakehismomanddadproud D.helpingopenyoungmindstonewideasandoldwisdom 4.Paragraphs3﹣8werewrittentoshow. A.howtheauthorlivedameaningfullife B.howtheauthorgotthroughdifficulttimes C.thatthemeaningoflifedoesn'tchangeovertime D.howthemeaningoflifechangesatdifferentlifeperiods 5.Accordingtothestorywhogivesmeaningtoourlife? A.Children. B.Friends C.Parents. D.Ourselves.
APhDstudentsurnamedSunisinthehotseatforoccupyingawoman'sseatonahigh﹣speedtrainonAugust212018. InavideopostedonSinaWeibothemancanbe1lyinginaseat.WhenthewomanaskedhimtogiveherseatbackherefusedandsaidYouhavethree2﹣standtakemyseatorgotothediningcoach. Atrainattendantthencametotrytoaskhimtogivetheseatback.Sunsaidhewasn'tabletostandonhisownand3awheelchair.Theattendanthadtoleadthepassengerto4seat. Manypeoplehaveexpressed5attheman'sbehavior.Somepeopleevenduguptheman'sname6hiseducationandworkhistoryandputtheinformationonline. TheJinanPublicSecurityBureauhandeddownapunishment7SunonAugust24.Hewasfined罚款200yuanandwillnotbeallowedtobuytrainticketsforasetperiodoftime. Howeversomethinkthepunishmentwasnot8enoughaddingthatthosewhobehavesimilarlyonairplanescanbepunishedmoreseriously. Expertsexplainedthatthebureaucouldonly9Suninthiswayaccordingtopresentlawsandrules.Buttheyaddedthatsuchlawscouldbeimprovedtostoptrainpassengersfrombehaving10. 1.A.looked B.watched C.talked D.seen 2.A.rules B.choices C.hobbies D.differences 3.A.askedfor B.askedabout C.agreedwith D.dependedon 4.A.other B.else C.another D.theother 5.A.kindness B.anger C.hunger D.warmth 6.A.aswellas B.aslongas C.asfaras D.assoonas 7.A.for B.at C.by D.with 8.A.kind B.strict C.difficult D.patient 9.A.explain B.excuse C.deal D.punish 10.A.politely B.poorly C.carefully D.beautifully
同学们都在盼着过一个愉快的假期.lookforwardto .
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请阅读下面短文.根据短文内容从下面方框内的七个选项中选择五个还原到文中使短文意思通顺结构完整并在答题卷上将其序号涂黑. Forthoseofuswhoarestudyingatschoolthetimeofexamsisverystressfulanddifficult.Somepeoplefindexamtimessobadthattheybecomeillbecausetheyareafraidoffailingtheyareafraidoflettingtheirparentsandfamilydown1Talktosomeoneaboutit.Maybeyoucanspeaktoafriendorsomeoneinyourfamilyorteachersatyourplaceofstudy.Ifonepersondoesn'thelpyouasksomeoneelse. 2Herearesomeadvice Askateacherortutorabouthowtoreviewyourlessonsandexamskills﹣howtoworkwhenyouareinanexam. Takeshortrestsduringyourtimeofwork.Ifyourmindistireditwillnotrememberwell. Planyourworkstudyattimeswhenyouknowyouwillworkatyourbest. Getenoughsleepandeathealthyfood. Youneedexercisetoworkwell.3 Stopthinkingaboutthefutureandfailing. Ifyoufeelilltalktosomeoneaboutyourworries.Butdon'tbetoorelaxed!Somestressoverexamsmakesyouworkhardforthem. Ifitupsetsyoutotalktoyourfriendsaboutanexamwhenitisfinisheddon'tdoit!Infactdon'teventhinkabouttheexamyouhavefinished.Whatisdoneisdone.4 Tothisadvicewecouldadd Ifyouarestudyingintheeveningdon'tgostraighttobed.Yourmindwillstillbegoingroundandround﹣thinkingtoomuch.5Choosesomethingthatwillrelaxyouandmakeyouthinkofotherthings. A.Ifexamsarereallymakingyouillorworrieddon'thideyourfeelings. B.Havingagoodrestmayhelpsalot. C.Howtogetthroughexams? D.Youcantalktoyourparentsfriendsorteachers. E.Walkrunandplaysport﹣whateveryouenjoy. F.Dosomethingelsemaybewalkorgetexercise. G.Youcannotchangewhatyouhavewritten! 1. 2. 3. 4. 5.
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Oink!TheYearofthePigiscoming.Manypeoplebelievethatpigsarenaturallyfatlazyanddirty.Butareanyofthosethingstrue? Itistruethatpigsarefat.Theyeatalot.Buttheyareusefultous.Wegetmorethanjustporkfrompigs.Wecanusetheirskintomakeshoes.Wecanusetheirhairtomakebrushes.Pigsalsoprovideuswithingredientsfordrugslikeinsulin胰岛素.Insulincantreatdiabetes糖尿病. PeoplesometimessayYouareasstupidasapig.Butpigsarenotstupid.Infactpigsareoneofthe10smartestanimals.Theyhaveagoodmemoryandcantelldifferentshapesapart.Manyexpertsthinkpigsareeasiertotrainthandogsorcats.InFrancepeopleteachpigstofindsomething.Withtheirgoodsenseofsmelltheycanfinditevenfasterthandogs. Whenyouseepigstheyareusuallyindirtywaterormud.That'sbecausepigshavenosweatglands汗腺.Onhotdaystheyhavetocoolthemselvesinwaterormud.Thiskeepsinsectsoffofthemaswell.Mudcanalsoprotecttheirskinfromsunburns. Theseopinionsofpigsoftenmakeushavewrongideasabouttheanimal.Forexampleifsomeoneeatsalotwesaythattheyhavepiggedout.Ifsomeone'sroomisverymessywemightsayhisorherroomlookslikeapigsty. ButpeopleinancientChinareallylikedpigs.Peoplethoughtthepig'sbigheadandearswereasymbolofgoodluck.Ifsomeonehadaroundandfullfaceheorshewasthoughttobeblessed有福气的.Peoplealsobelievedtheanimalstoodforwealthashumansusedeverypartofthepig.Piggybanksareasymbolofthis.Mostchildrenhaveapiggybankthattheycanusetosavemoney. 1.AccordingtoParagraph2whichofthefollowingisTRUEaboutpigs? A.Wecanmakeshoeswithpig'shair. B.Pig'sskincanbeusedtomakebrushes. C.Pigscanonlyprovideporkforpeople. D.Pigsareusefulinhelpingtreatdiabetes. 2.Whydopigsusuallystayindirtywaterormud? A.Becausetheylikebeingdirty. B.Becausetheyhavenosweatglands. C.Becausetheywanttocleantheirskin. D.Becausetheyliketoplaywithdirtywaterandmud. 3.WhatdoestheunderlinedphrasepiggedoutinParagraph5meaninChinese? A.出栏 B.节食 C.暴饮暴食 D.逃跑 4.AccordingtothelastparagraphwecanknowthefollowingEXCEPT. A.pigswerethoughttostandforwealth B.peopleinancientChinareallylikedpigs C.pig'sbigheadandearswerethoughttobeasymbolofgoodluck D.peoplewhohadaroundandfullfacewerethoughttobeunlucky 5.WhichofthefollowingisTRUEaccordingtothepassage? A.Pigsarefatlazydirtyandstupid. B.Pigsareneitherusefulnorsmart. C.Pigscannottelldifferentshapesapart. D.Pigshaveagoodmemoryandagoodsenseofsmell.
NadiaComaneciafamousgymnast体操运动员wasborninRomaniain1961. Whenshewasdoingcartwheels侧手翻ontheplaygroundattheageof7aPEteachersawher.HetoldherfamilythatshewasverygoodandadvisedNadiatotraininthecapitalofRomania.AlthoughitwasalongwayfromherhomeNadiawentbecauseshelovedgymnastics体操. Afterthatshetrainedhardandtookpartinlotsofcompetitions.In1975shewasnamedasoneoftheAthletesofthe20thCentury. In1976NadiawenttotheOlympicsinCanada.Shewassofantasticinthecompetitionthateveryonewaitedforthescoreahighscore.Butthescoreboardshowed1.00! Everyonewassurprised.Therewasn'tasoundforamoment.ThenavoicecameLadiesandgentlemenNadiaComaneci…10! Theaudience观众cheeredveryloudly.Sowhathappened?Wellwhenthescoreboardwasbuiltnoonethoughtascoreof10.00waspossible.Thedecimalpoint小数点wasinthewrongplace!Infactthescoreboardonlyhadthreedigits数位toshowscoressuchas9.50or9.85atthattime. Inthe1976SummerOlympicsNadiaComaneciscoredaperfect10whichwasthoughtimpossiblebefore.Fromthenonshewaslookedasahero.In1984shegotretired退休的. 1.NadiawasnamedasoneoftheAthletesofthe20thCenturyin. A.1961 B.1975 C.1976 D.1984 2.AtfirstthescoreboardshowedNadiagotintheOlympicsinCanada.
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Itisnotalwayseasytodiscoveryourself.Fromayoungage.IhadastrongsenseofwhoIwouldbecomebutanaccidentchangedeverything. Tomeskatingwas1thananythingelseintheworld.Nothingelsefilledmyheartwithsomuchjoy.Ispent24hoursaweekdevelopingmysills.Ihadnosociallifeorotherintereststhanskating.ButIwonthe2placemedalsinnearlyeverycompetition. UnfortunatelyduringonecompetitionIfellandwasbadlyinjuredI3thatIcouldn'tskateanymore.Thepaininmybackwashardtobearandevenbasicdailytasksbecamedifficult. Mydreamhadbeentakenaway.I4heartandhadnoideawhatIwouldbecome.5halfayearofsufferingsomethinghadtochange.InsteadofsittingaroundandwastingmydaysIbegantoworkwithsomepeople6makeeffortsonlocalcommunityserviceprojects.Byvolunteeringasaswimmingteacherandsummerreadingassistantforlittle7IgotanideaofwhoIwantedtobecome.AfterafewmonthsIfoundanewinterest.LittlebylittleIsteppedoutoftheshadowandrebuiltmyconfidence8. Sometimeschallengesinlifewillgetin9way.Wecanchoosetostaybehindortrytogetpastthesechallenges.Myaccidentwasachallengethatfailed10mefromreachingsuccess.TodayI'maveryconfidentandoptimistic乐观的person. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.
1分﹣﹣DoyouknowHongyadonghasbecomeoneofplacesinChongqing? ﹣﹣Sure.LizibaRailwayStation.Manypeoplevisitthereeveryday. A.popularNeitherhas B.popularSohas C.themostpopularNeitherhas D.themostpopularSohas
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MrGuoisateacherfromXi'an.HeaskedhisstudentstohandintheirhomeworkthroughaQRcode二维码.Wespentanhourortwoinclasslearninghowtogenerate使产生thecodesandintheendeverythinggetseasiersaidGuo.WhenstudentsfinishthehomeworktheykeepitonWeChat微信.TheneachstudentmakeshisownQRcodeandgivesittome.SoIcanchecktheirworkeverywhereusingmycomputerortelephone. TheQRcodescanbesenttoMrGuobyemailQQandWeChat.WhenGuoscans扫描his students'QRcodestheirhomeworkappearsonhisphone.Hefindsthattheirhomeworkbecomesmore creative创新的withmanypicturesmusicandevenvideos. Guo'sstudentslikethenewwayandthinkitisinteresting.Wearelivingintheinformationage.Manystudentsliketoworkwithcomputerswhichmakeslearningmorefun.saidTingtingastudentofGuo's. Thepaperisnoteasytokeepbutthecodeiseasytokeepandshare.Guosaid.Itisworthtryingtousenewtechnologyineducation.Educationitselfisakindofcreation.Idon'twantmystudentstofallbehindthetimes. Howeversomeparentsareworried.Theyareafraidthattheirchildrenwillspendtoomuchtimeoncomputersandlesstimecommunicatingwithteachers.Butinfactit'sunnecessary.Studentsstillneedtolookupinformationinbooksandwriteitdownwhentheydotheirhomework.Theyonlyusethecodewhentheyhandintheirworkwhichdoesn'ttakethemtoomuchtime.Alsoforteachersitallowsthemtocheckthestudents'workatanytime.Andit'salsoaneasywaytosharehomeworkwithotherstudents. 1.Accordingtothepassagestudentscankeeptheirhomeworkon. A.WeChat B.QQ C.email D.blog博客 2.Guo'sstudentsthinkthenewwayis. A.strange
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Isthereawaytoquicklyrecallinformationjustbeforetakinganexam?Walkingbackwardsmightbeasolution.ScientistsintheUKsaidthisactivitycanhelppeopleimprovetheirshort﹣termmemory.Whenyouwalkbackwardyouseethingsfromadifferentsidecomparedwalkingforward.Thisdifferencehelpspeoplerecallthingsthathappenedinthepast. Andwalkingbackwardisnotjustgoodforourbrains.Itisalsogoodfortherestofourbody.Comparedtowalkingforwardwalkingbackwardismorechallenging.Thiscanhelpusimproveourhealth.Walkingbackwardusesmoreenengyinashorttimeandburnsmorecalories. Inadditionwalkingbackwardislessstressfulforourknees.Itcouldbehelpfulforpeoplewhooftenhavepainintheirknees.Walkingbackwardalsokeepsourspines脊柱strongwhichcanhelptoease缓解paininthelowerback.Thismightbewhymanyoldpeoplelikewalkingbackward. It'sjustasthesayinggoesThelongestjourneystartswithasinglestep.Let'shaveatrynow.Firstyouneedtofindaflat平坦的andcleararea. Walkslowerthanyouusuallywalkforward. Ifyouareabeginnertakeafewstepsforwardandthenafewstepsback.Ifyoudon'tfeelcomfortabletakeabreak. Forourbrains Itmightbeasolutiontohelpyourecallinformation1quickly. Fortherestofourbody It'smorechallengingandhelpsusbemore2. Forourknees Ithelpseasepaininthekneesandlowerbackthismightbethe3whyoldpeoplelikeit Let'stry PleasetranslatetheunderlinedsentenceintoChinese.4.Asabeginneryouneedto5ifyoufeeluncomfortable. 1. 2. 3. 4. 5.
Therewasonceaboywhowasoutplayinginafieldwithhisfriends.Astheywereplayingtheboycameacrossastonethatlookedinteresting.Itwasn'tas1astheotherstones.Itwasalittlebitsparkly闪耀的.Butitwasstillquitedirty.Theboypickedupthestoneand2topolishit. Hisfriends3himforthis.Theysaid4areyoupolishingthatdirtyoldstone?Itisn'tworthanythingatall!Buteverydaywhentheywentouttoplaytheboywouldbringthestonewithhimpolishingitwhenevertheytook5. Thiswentonforsometime.Thenonedaytheboylefthishometo6hisfriendsasusual.Butthistimehehadquitea7forthem.Whenheshowedthemthestonetheywereamazed.Itwasinfactnotanordinarystoneafterall﹣itwasabeautifuldiamond钻石.Theboystayedupallnightpolishingituntilitwas8clean. Therewillbetimesinyourlifewherepeoplewilltrytodiscourageyou.Theywilltellyouthatyou'rewastingyourtimeonsome9task.Butwhentheydothisthebestthingyoucandoisignorethemandcontinuetowork10yourgoal.Youcanturnaroughstoneintoadiamondifyouhavepersistence毅力andcourage. 1.A.bright B.special C.common 2.A.decided B.refused C.expected 3.A.shoutedat B.laughedat C.pointedat 4.A.When B.Why C.How 5.A.breaks B.notes C.photos 6.A.call B.join C.treat 7.A.promise B.choice C.surprise 8.A.completely B.simply C.clearly 9.A.relaxing B.serious C.meaningless 10.A.against B.toward C.through
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先通读短文掌握其大意然后从ABCD四个选项中选出一个可以填入相应空白处的最佳答案并将其标号填入题前括号内. Ayoungmanwasinterestedinjade玉stones.SohewenttoMrSmithagemologist玉石家tolearnfromhim.MrSmithrefusedbecausehefearedthattheyoungmanwouldnothave36tolearn.Theyoungmanaskedforachanceagainandagain.37MrSmithagreedandtoldhimBeheretomorrow Thenextmorningtheyoungmancame.MrSmithputajadestoneintheyoungman'shandandtoldhimto38it.Hethenwentabouthiswork.Theyoungmansatquietlyandwaited. ThefollowingmorningMrSmithagain39ajadestoneintheyoungman'shandandtoldhimtoholdit.Onthethirdfourthand40dayMrSmithdidthesamethingandrepeatedhis41Onthesixthdaytheyoungmanheldthejadestone42hecouldnolongerstandthesilence.WhenamIgoingtolearnsomething?askedtheyoungman. YouwilllearnsaidMrSmithandwentabouthiswork. Severalmoredayswentbyandyoungmanfeltvery43.Onemorninghewasaskedtodoitoncemore.Assoonasheheldittheyoungmanshouted44lookingathishandThisisnotthesamejadestone! Youhavebegunto45saidMrSmith. 36.A.chance B.ability C.patience D.time 37.Slowly B.Silently C.Quickly D.Finally 38.cut B.hold C.touch D.watch 39.placed B.took C.gave D.sent 40.third B.fourth C.fifth D.sixth 41.instructions B.suggestions C.promise D.decisions 42.and B.but C.or D.so 43.unhappy B.excited C.surprised D.pleased 44.at B.on C.without D.by 45.refuse B.follow C.accept D.learn.
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请阅读下面辩论赛正反方的观点选出一个最佳选项. HeMeixi14 Inmyopinionthere'snothingwrongaboutparentssharepicturesoftheirbabiesonline.Itshowsthattheylovetheirchildren.Theyjustwanttosharepicturesoftheirkidsrecalltheirchildhood.Ofcourseasthekidsgrowupit'snecessarytoletthemknowbeforesharingtheirphotos. ChenJunhong14 Ourparentshavenotonlygivenbirthtousbutalsoprovideduswithalotofthingsthatweneed.Can'ttheyshareourphotostoexpresstheirhappinessandpride?It'sjustanotherwayforthemtoexpresstheirloveandweshouldunderstandthat.ThoughIthinkitwouldbebetterforparentstotalkwiththeirkidsaboutthiswhentheystarttogotoschool. Isitgoodforparentstosharetheirkids'photosonline? LiMeiying14 Someparentsliketoshare embarrassingphotosoftheirkidsonline.Forexamplesometimestheirkidsaresleepingorcryingintheirpictures.Butmostkidsdon'twantthesephotostobesharedonline. Theymaynotcarewhentheyarelittlebabiesbutastheygrowuptheymightbeupsetaboutit.Soparentsshouldasktheirkidsforpermissionbeforedoingthat. QianBosi14 Parentsshouldrespectandprotecttheirchildren'sprivacy隐私.Photoscanshowtheirchildren'sfacesplacesthey'vebeentoandotherinformation.It'snotsafe.Somepeoplemightusethephotosforbadthings.Parentsshouldbemorecarefulaboutthis.Andit'snotgoodtosharethephotoswithouttellingtheirchildren. 1.AccordingtotheproswhichreasonisNOTmentioned提及? A.Thephotossharedonlinecanbegoodmemories. B.Sharingphotosonlineisawaytoshowparents'love. C.Parentsareproudwhentheirkidsstarttogotobed. 2.Whatdoestheunderlined划线的wordpermissionmean? A.许可 B.推荐 C.评论 3.WhydoesQianBosidisagreeonsharingthekids'photosonline? A.Becausethephotosmightbeusedforbadthings. B.Becausethekidswillbeupsetwhentheygrowup. C.Becausesomepeoplewillchangethekids'information. 4.Whatcanwelearnfromthecons? A.Embarrassingphotoscanalwaysmakepeoplelaugh. B.Allthekidsdon'twanttheirphotostobesharedonline. C.Parentsshouldbecarefultoprotecttheirchildren'sprivacy. 5.Whatconclusion结论canwedrawfromalltheiropinions? A.Sharingthekids'photosonlineisadangerousthing. B.Parentsshouldtalkwiththeirkidsbeforesharingtheirphotos. C.Childrenshouldunderstandtheirparents'lovethroughthephotos.
阅读下面短文用括号内所给词的适当形式填空必要时可加助动词或情态动词. Peoplespendalmostathirdoftheirlivesdoingonething﹣sleeping.Everyyearthereisadayforpeoplearoundtheworldtocelebratethe1importantofgoodandhealthysleep﹣WorldSleepDay. Sleepislikefoodforthebrain.Healthysleephelpsthebodyandbraingrowanddevelop.Peopleofdifferentagesneeddifferentamountsofsleep.Itissaidthateighthourspernight2considertheaverageamountofsleep.Forstudentsaged10to17ahealthyamountisabouteighttoninehourspernight.HoweverlastyeartheChinaYouthandChildrenResearchCenter3reportthataboutfour4fiveofmiddleschoolstudentsdidn'tgetenoughsleep.Forsomestudentstheywanttosleepearlybuttheykeep5worryabouttheirschoolworkandcan'tfall6sleepquickly.Alack缺乏ofsleepcangreatlyaffect影响aperson'slife.Studentswhodon'tgetenoughsleepmaygetpoorgrades.Theycannotpayattentioninclassordowellinsports. 7solvethiskindofproblemscientistsadvisethatstudentsshouldhave 8littleschoolworkandmoretimetosleep.Therearesomeotherwaystohelppeoplegetenoughsleepsuchas9takea20﹣minutenap午睡duringthedaytryingtogotosleepearlierandsoon.Goodsleepinghabitsarealso10help.Forexampletrytogotosleepandwakeupatthesametimeeverydayevenonweekendsandduringtheday. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.
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高一上学期数学
高一上学期化学
教案备课库
教案备课库