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先化简，再求值（﹣）÷，其中a＝2sin60°+1．
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先化简再求值﹣÷其中a＝2sin60°﹣tan45°．
先化简再求值其中x=2sin60°﹣1．
先化简再求值a+ba﹣b﹣ba﹣b其中a=﹣2b=1.
先化简再求值b2﹣÷a﹣其中a=tan45°b=2sin60°.
先化简再求值÷﹣1．其中a＝2sin60°﹣tan45°b＝1．
先化简再求值﹣1÷其中x=2sin60°+1.
先化简再求值﹣÷其中x=2sin60°+2tan45°．
化简求值先化简再求值:其中a=-2x=1.
先化简再求值÷﹣1.其中a=2sin60°﹣tan45°b=1.
先化简再求值÷﹣1.其中a=2sin60°﹣tan45°b=1.
先化简再求值÷﹣1.其中a=2sin60°﹣tan45°b=1.
先化简再求值a+3a﹣2﹣aa﹣1其中a＝2sin60°+3．
先化简再求值其中a=2sin60°-tan45°.
先化简再求值其中a＝sin60°b＝tan60°.
先化简再求值32a﹣a2﹣6a﹣1其中a=﹣1.
先化简再求值xx﹣2+x+12其中x=1.
先化简再求值÷﹣1.其中a=2sin60°﹣tan45°b=1.
先化简再求值其中x＝tan60°－1.改编
先化简再求值÷1﹣其中x=2sin45°+1.
先化简再求值÷其中a=2sin60°﹣2tan45°．
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甲乙两种固体物质的溶解度曲线如图1所示． 1图1中P点的含义是 240℃时甲乙两物质溶液的溶质质量分数大小关系为填序号 A．甲＞乙B．甲＝乙C．甲＜乙D．无法确定 320℃时进行了如图2所示的实验 上述实验过程中所得的溶液中属于不饱和溶液的是填序号下同溶液与B溶液中溶质的质量分数相同．
15分MolecularbiologistElizabethBlackburnsharedaNobelPrizeforherresearchontelomeres端粒﹣structuresatthetipsofchromosomes染色体thatplayakeyroleincellularaging.1shewasfrustratedthattheimportanthealthimplicationsofherworkweren'treachingbeyondacademia. SoalongwithpsychologistElissaEpelshehaspublishedherfindingsinanewbook2ageneralaudience﹣﹣layingoutascientificcasethatmaygivereaders3tokeeptheirnewyear'sresolutionstonotsmokeeatwellsleepenoughexerciseregularlyand4stress. ThemainmessageofTheTelomereEffectbeingpublishedTuesdayisthatyouhavemorecontroloveryourownagingthanyoumayimagine.Youcanactually5yourtelomeres﹣andperhapsyourlife﹣byfollowingsoundhealthadvicetheauthorsarguebasedonareviewofthousandsofstudies. Telomereslistentoyoutheylistentoyour6theylistentoyourstateofmindsaidBlackburnpresidentoftheSalkInstituteforBiologicalStudiesinLaJoliaCalif. TelomeressitattheendofthestrandsofDNAlikethe7capsonshoelaces.Stressfromaroughlifestylewillshortenthosecapsmakingitmorelikelythatcellswill8dividingandessentiallydie. Toomanyofthesecellsaccelerate9thepairsay.Thisdoesn'tcauseanyparticulardiseasebutresearchsuggeststhatitspeedsupthetimewhenwhateveryourgeneshaveinstorewilloccur﹣﹣soifyou're10toheartdiseaseyou'remorelikelytogetityoungerifyourtelomeresareshortersaidEpeldirectoroftheUniversityofCaliforniaSanFrancisco'sAgingMetabolismandEmotionsCenter. Wecanprovideanewlevelofspecificityandtellpeoplemorepreciselywithclues11fromtelomerescienceaboutwhatexactly12isrelatedtolongtelomereswhatexactfoodsarerelatedtolongtelomereswhataspectsofsleeparemorerelatedtolongtelomeresEpeladded. OtherresearchersinthefieldpraisedBlackburnandEpel'seffortstomaketelomereresearchrelevanttothegeneralpublic13severalwarnedthatitrisked14thescience. Ithinkit'saverydifficultthingtoprovethatlifestylecanaffecttelomerelengthandthereforelifespansaidHarvardgeneticistandanti﹣agingresearcherDavidSinclair.Togetcause﹣effectinhumansis15soit'sbasedonassociations. 1A.And B.Furthermore C.But D.Thus 2A.aimedat B.referredto C.addressedto D.informedof 3A.warning B.motivation C.appealing D.implication 4A.cutdownon B.layemphasison C.addto D.contributeto 5A.shorten B.lengthen C.enhance D.simplify 6A.messages B.attitudes C.instincts D.behaviors 7A.influential B.inevitable C.progressive D.protective 8A.cease B.neglect C.initiate D.maintain 9A.humanhealth B.humanaging C.humanresolution D.psychologicalstress 10A.relevant B.committed C.reluctant D.sensitive 11A.suffering B.emerging C.suspending D.profiting 12A.illness B.gene C.smoking D.exercise 13A.so B.because C.though D.or 14A.oversimplifying B.overestimating C.over﹣viewing D.underestimating 15A.impropriate B.impossible C.irrelevant D.imaginary
6分 Introduction Doyoufilteryourtapwaterbeforedrinking?Findoutaboutthecleaningpowerofwaterfiltersinthisactivity﹣﹣butwithresultsyoucansee.Youwillcleanacoloredsportsdrinkorcoloredsoda! _________ Tofindouthowwaterfiltersworkitisprobablybesttohavealookinsidethefilter.Mostofthefiltersthatareusedforhomewatertreatmentarecarbonfilters.Thatmeansthematerialinsidethefilteriscarbonoraspecialformofitcalledactivatedcarbon.Whatmakesactivatedcarbonspecialisthatitisaveryporousformofcarbon﹣almostlikeasponge﹣﹣andhasmanytinymicroscopicporesthatsoakupwater.Alltheselittlemicroporescreateahugeinnersurfacearea. Materials Coloredsportsdrinkorcoloredsoda FiveplasticcupsTwo﹣ouncecupsworkbest. TablespoonActivatedcarbonTimer Coffeefiltersatleastfour PermanentmarkerPapertowelsWhitesheetofpaper Aworkingareathatcantoleratesomeliquidsplashes Preparation Labelfivetwo﹣ounceplasticcupswith0lalb2aand2b. Usehalfatablespoonofactivatedcarbonabout1gramtofillcupla.Dothesamefor2a. Preparetwodouble﹣layeredcoffeefilters.Insertonefilterintoanotherfiltertoformthetwolayers. Getyourtimerandcoloredsportsdrinkready. Procedure Taketheemptytwo﹣ounceplasticcuplabeled0andaddaboutonetablespoonapproximately10millilitersofcoloredsportsdrinkorsoda. Setyourtimerforfiveminutes.Donotstartityet. Tothetwocupswithactivatedcarbonlabeledlaand2aaddabouthalfatablespoonofcoloredsportsdrinktoeachabout5milliliterspercup.Carefullyswirleachcuptomakesurethatthesolutionmixeswellwiththeactivatedcarbon. Startyourtimerimmediatelyafteryouhavefilledbothcups. Takethedouble﹣layeredcoffeefilterandholditabovecuplb.Oncethetimerringsafterfiveminutespourthecontentsofcuplaliquidandactivatedcarbonintothedouble﹣layeredcoffeefilter.Collecttheliquidthatrunsthroughthefilterincuplb. Setyourtimerfor25minutesandstartitimmediatelyafteryoufinishedfilteringthesolutionfromcupla. Whilewaitingswirlcup2aoccasionally. Nowprepareyourseconddouble﹣layeredcoffeefilterandonceyourtimerringsafter25minutesholditovercup2b.Pourtheliquidandactivatedcarbonfromcup2aintothefilterandcollecttheliquidincup2b. Finallylineupcup0withyouroriginalsportsdrinkcuplband2b.Putthemonawhitesheetofpapersoyoucanseethesolutionsbetter.Lookatallthreecups. Results … 1Whatisthemissingsub﹣title? A.Observation B.Application C.Effect D.Background 2Accordingtothepassagewhatcanmakewatercleanerandsafer? A.Sponge. B.Activatedcarbon. C.Microscope. D.Carbondioxide. 3WhichofthefollowingresultsisWRONG? A.Thesportsdrinkincup0looksthemostintense. B.Afteryoufilteredthemixtureincuplbyounoticedthecolorlessintense. C.Thesportsdrinkin2bafter25minuteslooksthemostintense. D.Thesportsdrinkinlbisneitherthemostintensenortheclearest.
为了测定某纯碱样品杂质为氯化钠中碳酸钠的质量分数数小江同学对样品进行了如图定量实验 1纯碱的水溶液显填“酸性”“碱性”或“中性”之一 2该实验中生成二氧化碳的质量为 3通过化学方程式计算样品中碳酸钠的质量分数计算结果精确到0.1g
将过量的铁粉加入CuNO32和AgNO3的混合溶液中充分反应后过滤下列对滤渣和滤液的说明中不正确的是
10分假如英语课上老师要求同臬之间交换修改作文W你修改你M巣%的以下作文.文中共有10处语言错误苺句中伋多有两处错误.钟处错汉仅涉及一个iYUti】的增加删除成修改. 增加在缺问处加一个漏字符号A并在其下面写出该加的词. 删除把多余的同用斜线\划掉. 修改在错的词下划一横线并在该词下面写出修改后的同. 注意1•每处错误及修改均仅限一词 2.只允许修改10处多者从第11处起不计分. Thismorningourschoolorganizedusstudentstopayingastudyvisit. WerodethebusattheschoolgatethengotoffatCityRevolutionaryMemorialat7﹣50.Therewelistentostoriesaboutrevolutionariesandpresentedflowers.At930wearrivedatthehomefortheoldandplayedmusicforthemhappy.Theneveryonechattedwithelderlypeoplesbringingthemjoy.Laterwereachedatourcity'sspecialeducationschoolwhichwesawdeafandblindstudentstaughtindifferentmethods.Wegavetheirgiftsdonatedbyourclass.Alsoweplayedgameswiththemhopedwecoulddomore. At1130wereturnedtoourschool.Whataimpressiveexperience!
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清华大学研究人员成功研制出一种纳米纤维催化剂可将二氧化碳转化成液体燃料甲醇其微观示意图如图图中的微粒恰好完全反应．下列说法正确的是
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如图所示为实验室中常见的气体制备干燥收集和性质实验的部分目要求回答下列问题 1以石灰石和稀盐酸为原材料在实验室中制备并收集干燥的二氧化碳气体．按照要求设计实验装置连接仪器并检验装置的气密性． ①所选仪器的连接顺序为填写仪器序号字母 ②用石灰石和稀盐酸制取二氧化碳的化学方程式为 ③若将纯净的二氧化碳气体通入装置G石蕊试液中试液显色． ④将大量二氧化碳气体通入盛有大量澄清CaOH2溶液的大烧杯中烧杯中溶液的质量与之前相比会填“变大”“变小”或“不变”之一 3若以过氧化氢溶液为原料以二氧化锰为催化剂在实验室中制备干燥的氧气用来测定CuO和Cu的混合物样品中铜的质量仪器的连接顺序是A→D→C． ①D的作用是 ②加热过程中装置C中的现象是 ③欲通过测量反应前后C处大玻璃管质量的增加来计算混合物中Cu的含量充分反应后C处大玻璃管质量增加0.5克则混合物中Cu的质量为g．
3分助手意识到她需要鼓足勇气向教授提出她的想法.aware
“火立熄”灭火球是一种新型灭火装置它接触到火焰3～5秒后炸开将球体内的灭火干粉释放覆盖在可燃物上同时释放不可燃气体使火焰熄灭．其中的灭火材料是纳米级ABC干粉主要成分是磷酸二氢铵NH4H2PO4磷酸二氢铵在受热时能够生成氨气五氧化二磷和一种常见溶剂X同时吸收大量的热． 1物质的化学式为磷酸二氢铵受热反应的化学方程式属于反应．填“化合”“分解”或“置换”的一个 2该灭火球灭火过程中蕴含的原理是写出一条即可 3磷酸二氢铵还是一种常用的化肥下列说法不正确的是． A该化肥属于复合肥料B．该化肥中不可以与熟石灰混合使用 C．运输储存该化肥时应避免日晒雨淋D．该化肥在物质分类上属于酸
进行化学实验操作考核时下列四位同学的操作中正确的是
8分 ThemostimportantdivideinAmericatodayisclassnotraceandtheplacewhereitmattersmostisinthehome. Conservativeshavebeenbangingonaboutfamilybreakdownfordecades.Nowoneofthenation'smostdistinguishedliberalscholarshasjoinedthechorus. RobertPutnamisaformerdeanofHarvard'sKennedySchoolofGovernmentandtheauthorofBowlingAlone2000aninfluentialworkthatwasconcernedwiththedeclineofsocialcapitalinAmerica.1 AnyonewhohasreadComingApartbyCharlesMurraywillbefamiliarwiththetrendbutMr.Putnamaddsstrikingdetailandsomeexcellentgraphs.Thisisathoughtfulandpersuasivebook. Racemakesadifferenceonly2%ofbirthstowhitecollegegraduatesareout﹣of﹣marriagecomparedwith80%amongAfrican﹣Americanswithnomorethanahigh﹣schooleducation.2 Howeverthenon﹣maritalbirthproportionamonghigh﹣school﹣educatedwhiteshasincreasedbyfourtimesto50%andthesamefigureforcollege﹣educatedblackshasfallenbyathirdto25%.3 Upbringingaffectsopportunity.Upper﹣middle﹣classhomesarenotonlyricherwithtwoprofessionalincomesandmorestabletheyarealsomorenurturing. Inthe1970stherewerepracticallynoclassdifferencesmtheamountoftimethatparentsspenttalkingreadingandplayingwithyoungbabies.4 Educatedparentsengageinanon﹣stoptwo﹣waydialoguewiththeirchildrenhelpingthemtomakeuptheirownmindsaboutrightandwrongtrueandfalsewiseandfoolish.Thisisexhaustingsoithelpstohaveareliablehusbandorwifewithwhomtosharetheburdennottomentioncleanersnanniesandcashfortripstothetheatre.
8分DatongamajorcoalproducerinnorthChina'sShanxiProvince300kmfromBeijingwasnotoriousforitspollutedair.Howeverthesituationhaschangedinrecentyearsasthecitypromotesanenergyrevolutionwiththefocusonencouragingnew﹣energyvehiclesanddevelopingwindandsolarpower. Datonghasadvantagesfordevelopingthesolarindustrysinceitenjoys2800hoursofsunshineonaverageannually.Alsoithasrichlandresourcesincludingsunkenlandtheremainsofcoalmining.Thesolarpanelsinthesunkenareaarewidelyspacedwithbushesplantedinbetweentoconservewaterandsoilandpromoteecologicalprotection. Inadditionitsstrongpowergrid输电网cantransmittheelectricityproducedbysolarpowertoBeijingTianjinandsomecitiesinneighboringHebeiProvince. Datongalsohasascienceandtechnologyparktopromotescientificnewideasandappearanceofindustriessuchashigh﹣endequipmentmanufacturinge﹣commerceculturetourismandecologicalagriculture. Howevertheenergyrevolutionisnotmeanttoendtheuseofcoalbuttopromotecleanandefficientconsumption. TheDatongCoalMineGrouphasbuiltacirculareconomyparktopromotegreendiversifiedandlow﹣carboncoaluse.Acirculareconomyisaneconomicsystemtoreducewastegenerationandmakefulluseofresources. Thetransformationofenergystructurehaspromotedthedevelopmentoftourismintheancientcitywithawealthofhistoricalandculturalsites.Todayevenintheoff﹣seasonofNovemberandDecemberfmanytouristsstillgosightseeingorrecuperation疗养.AhiRh﹣HpeedrailwaywillbecompletedthisyearreducingthetraveltimebetweenBeijingandDutongto100minuteswhichisexpectedtopromotethenumberofvisitors. 1Whatdoestheunderlinedwordnotoriousinthefirstparagraphmean? A.Convenient. B.Essential. C.Suitable. D.shameful. 2WhycanDatongsucceedindevelopingnewenergy? A.Becauseithasrichcoalresource. B.Becauseithasattractivetourism. C.Becauseithasparticulargeographyandscientifictechnology. D.Becauseithasfriendlypeopleandpotentialeconomicsystem. 3WhatcanwelearnaboutDatong? A.Itssolarpowerisonlyprovidedforitownuse. B.Ithasstoppedproducingcoalbecauseofpollution. C.NovemberandDecemberareitsbesttouristseason. D.Energytransformationhasbenefiteditinmanyaspects. 4Whatisthebesttitleforthetext? A.EnergyrevolutioninDatong B.Datong'spromisingtourism C.Solarpowerandwindenergy D.NewdevelopmentofDatong
按要求从氮气一氧化碳氧化铁氢氧化钠碳酸氢钠氢氧化铜盐酸硫酸中选择合适的物质将其化学式填写在下列横线上 1一种气体单质2一种可燃性气体 2铁锈的主要成分4一种难溶性的碱 5常作发酵粉的盐6一种挥发性的酸．
某农村中学的化学兴趣小组在课外活动时有同学提议利用山泉水配制氢氧化钠溶液．查阅在氢氧化钠20℃时的溶解度后称取合适质量氢氧化钠固体加入足量的山泉水．多次配得的溶液都出现浑浊的现象容器底部有白色沉淀物．同学们针对此异常的现象探究 【提出问题】用山泉水配制氢氧化钠溶液时出现白色沉淀物是什么 查阅资料本地山泉水是硬水含较多的碳酸氢钙[CaHCO32]其受热会分解还能与氢氧化钠反应且都有碳酸钙生成． 【作出猜想】Ⅰ．氢氧化钠样品不纯含不溶性杂质 Ⅱ．氢氧化钠与溶解在山泉水中的某物质发生反应生成难溶于水的物质． 【实验验证】 1小明取少量样品于烧杯中加足量的蒸馏水搅拌得到澄清的无色溶液则证明猜想Ⅰ填“正确”或“不正确”． 2小红取少量的山泉水于烧杯中加入搅拌观察到泡沫少浮渣多确认所取的山泉水是硬水． 3小亮用过滤法取少量的沉淀物于试管中加入稀盐酸出现气泡写出产生气泡的化学方程式是． 4通过上述实验同学们一致认为猜想Ⅱ正确并提出该山泉水经过填操作来降低水的硬度配制氢氧化钠溶液就不会出现浑浊现象． 【反思拓展】老师启发同学们继续深入研究． 查阅资料碳酸氢钙的溶液呈碱性在水溶液中存在的离子有Ca2+HCO3﹣等． 1家庭中使用这种矿泉水溶液产生水垢常用醋酸除水垢该过程属于变化． 2为了证明碳酸氢钙溶液中的离子探究小组做了以下实验其中正确的是． A．甲同学用广泛pH试纸测得其pH值为10.5 B．乙同学用碳酸钠溶液来检验Ca2+ C．丙同学加入稀盐酸来证明HCO3﹣的存在．
下列实验能达到目的是
10分 Whydon'tyouactblack? SincemymiddleschoolyearsI'vebeenaskedthisquestionmorethananyother.Itseemstomethattoomanypeoplehaveletsocietyprogramintotheirbrainswhatshouldbeexpected1meablackpersonbeforeeverinteractingwithme.ButIbelieveinbeingwhoIamnotwho2wantmetobe. Onmyfirstdayofhighschool3gointothemathsclasstwoofmyclassmatespointedandlaughedatme.Iinitiallythoughtmyflywasopenorthatsomething4stickinmyteeth.ButasItookmyseatIheardoneofthestudentswhisperWhyisablackpersontakinghonors?Somyflywasn'topen.Anhonorslevelclasshadsimplybeenjoinedbyastudent5skinwasanunsettlingshadeofbrown. Iamnowinmyjunioryearofhighschool.Istilltakeallhonorscourses.Mywardrobestill6consistsolelyofclothesthatareappropriatetomyproportions.Mymusiclibraryspansfromrocktopoptotechnoandalmosteverythinginbetween.7itcomestochoosingmyfriendsIamstillcolorblind.IcontinuetodomybestworkinschoolinordertoreachmygoalsandyetwhenIlookinthemirrorIstillseeskinofthatsameshadeofbrown. Myskincolorhasdonenothingtochangemypersonalityandmypersonalityhasdonenothingtochangemyskincolor. Ibelieveinbeingmyself.IbelievethatI﹣notanystereotype﹣shoulddefinewhoIamandwhatactionsItakeinlife.Inhighschoolpopularityoftendependsonyourwillingness8followtrends.AndI'vebeentoldthatitdoesn'tgetmucheasiergoingintoadulthood.Buttheonlyotheroptionistosacrificemyindividualityforthesatisfactionandapprovalofothers.Surethiscanbeappealingsincechoosingtokeepmyself﹣respecthasmademeunpopularand9dislikeattimeswithnoendtothatinsight.Others'beingcontentwithme10isnotnearlyasimportantasmybeingcontentwithmyself.
2022年第24届冬季奥运会将在北京市和张家口市联合举行．如图所示甲乙分别是O2Fe2O3稀盐酸CaOH2四种物质中的一种“五环”中相交两环中的物质间能够发生化学反应． 1甲物质为乙物质为． 2其中C与甲反应的现象为Fe与乙反应的化学方程式为． 3“五环”中的物质Fe可以替换成填一种即可．
下列物质之间的转化不能够实现的是
下列事例用化学知识解释正确的是
在日常生活中应注意合理摄取营养物质和人体必需的元素． 1食物的成分主要有蛋白质糖类油脂无机盐和水等六大类通常称为营养素．下列各类食物中含淀粉最丰富的是填字母． A．西红柿B．大米C．鸡蛋D．牛奶 2小华经常食欲不振生长迟缓发育不良你觉得小华体内缺少的元素是填序号． ①铁②硒③钙④锌．
如图是一定条件下某化学反应的微观模拟示意图下列说法错误的是
河水净化的主要步骤如图所示．有关说法错误的是
25分DirectionsWriteanEnglishcompositionin120﹣﹣150wordsaccordingtotheinstructionsgivenbelowinChinese. 学校拟提出新五年的发展方案让同学们积极献言献策.假如你是该校学生李华请给校长写一封信就学校某一方面的发展提出你的建议及想法.你的文章须包括 1.提出建议的原因 2.具体的建议及操作方法.
10分 TimetoLearnHowtoSort Whateverwedon'twant﹣﹣﹣﹣nomatterwhetherit'seggshellsnewspaperssodacansoroldsocks﹣﹣﹣﹣it'sallgarbage.Andgarbagegoestothegarbagebin.Thereseemstobe1wrongwiththat.Butdoyoureallyknowhowtothrowawaygarbageproperly? China2promotegarbagesortingforoveradecadebutforthemajorityofthepublictheconcepthasn'tsunkin.Shenzhenissuedanewregulation.Itsaysresidentswillbefinedupto100yuanandorganizations1000yuanfornotsortingrubbish3specificgroups. It'sevidentthatthegovernmentisdeterminedtopushthisforwardsaidZhangNingaprogramofficer4serveinaBeijing﹣basedpublicwelfareorganization.ButI'mafraidtheregulationwillprovetobecounter﹣productivebecausegarbagesortinghasneverbeenachievedbymerelyimposingseverepunishments. Arecentsurveyfoundthat49.5percentoftherespondentssaidtheystilldon'tknowhowtosortgarbage545.5percentjustcan'tbebotheredtodoit.Lotsofcitizens6confuseaboutwhat'srecyclableandwhat'sgeneralwaste.Forexampleit'sscarcelyknownthattissueisnon﹣recyclablebecauseit'stoomoisture﹣proneandusuallytoopolluted7recycle.saidZhangarepresentative. AccordingtoZhang70percentofgarbageisa8misplaceresource.Forinstanceatonofwastesteelcanberefinedinto0.9tonsofusablesteelandatonofkitchenwasteisabletoproduce0.3tonsoforganicfertilizer. Butallofthisisbasedonthecondition9thegarbageiscategorizedproperly.Andthebehaviorofhouseholds10thesortingprocessinitiallystarts﹣﹣﹣﹣isthekey.Garbagesortingisachaineffect.Misconductattheverybeginningwillmakeallthefollowingeffortsgoinvain. Garbagesortingisacomplexissueandtakespatience.Sonexttimewhenyouthrowawaywhatiscalledgarbagedoitintherightway.
8分Kindergartenoutside?Yesindeed.It'spartofagrowingworldwidetrendtowardoutdooreducation.TheschoolsarecalledForestKindergartens. NowthenumbersaresmallintheU.S.buttheideaiswellestablishedinEuropewithschoolsinScotlandEnglandandSwitzerland.ByfarmostofsuchschoolsareinGermanywhichhasmorethan400Waldkindergartens. Childrenattendingsuchparticularschoolenjoyagoodamountofoutdooreducationeachdayrainorshine.Somelessonsarefocusedonnatureothersareacademictopicsdeliveredinanaturalsetting.Inallcasesstudentsareactive﹣notsittingatdesksoronmatsonthefloorbutwalkingrunningjumpingsolvingproblemslikehowtogetthemudoffthebottomsoftheirshoesbeforetheirparentsfindout. Attheseforestkindergartensstudentslearnsciencebyobservinganddoingitlearnmathbyapplyingittothenaturalworldaroundthemlearnlettersandwordsbyputtingthemtogetherusingsightsandsounds.Thechildrenlearntomakecomparisonsusingnaturalthingslikeapplesandrocks.Theydevelopanappreciationforanimalsandplantsintheirnaturalenvironment﹣notjustbylookingatpicturesinabookoronacomputerscreen. Someofthescienceactivitiesinvolveteamworklikeexplainingthebestwaytomoveaheavyobjectshowinghowalever杠杆works.Inothersessionsteachersencouragestudentstodeveloptheirmotorskillsbybuildingwoodentoolssuchashammersandknives. Thesestudentsalsolearnhowtogetalongwithoneanotherindividuallyandinagroup.Theyalsodevelophealthylevelsofself﹣confidencejustfrombeingabletodotheeverydayactivitiesthattheschooloffers. Inatimewhensomanychildrenarebeingclassifiedasobesebecauseoflongtimewatchingtelevisionandplayingvideogamestheseoutdoorschoolshelpchildrenlearnjustasmuchifnotmorefromopeningtheireyestotheworldaroundthem. 1WhichofthefollowingcountryhasthemostForestKindergartens? A.TheU.S. B.Germany. C.TheU.K. D.Switzerland 2Whatisthepurposeofthefourthparagraph? A.Toanalysehowchildrenlearnsocially. B.Tocomparedifferentteachingapproaches C.Toshowhowchildrenlearnacademically D.Todescribehowactivechildrenareintheclass 3WhichmaybeseeninForestKindergartens? A.Childrenaredoinganexperimentwithchemicals. B.Teachersarewritingsomethingontheblackboard. C.Smartphonesarewidelyusedtohelpchildrenlearn• D.Everythinginnatureislikelytobeappliedtoteaching. 4Whatistheauthor'sattitudetoForestKindergartens? A.Negative. B.Doubtful. C.Positive. D.Uncertain.
30分Myfatherisaworkerinauthorityoverotherswhoworkinconstructionsites.WhenIwasyoungitwashewho1mesympathythroughmodeling.Ithasalwaysbeena2formeasIgrowup3otherconstructionworkerswhoworkwithhimcometoourhouseeverySaturdaybecausethatishetimewhenhewill4theirsalariesfortheweek. Iknowmyfatherassomeonewhoisaquietmanjust5everyonearoundhimself.Heissomeonewhois6whenitcomestodisciplinebutIhaveneverbeen7whenbeingraisedbyhim.MaybethatisbecauseIhaveseenhisgentlenessand8tousandtoothers.Sinceheisaworkerin9Ioftenseehimtalkingtotheconstructionworkerswhenevertheyhaveproblems.Heismorelikeafatherthana10tothem. Onedayhereturnedhometellingmethathewouldtreatmetodinnerbecausehehad11hissalary.Laterthatdayhisfriendafellowworkercametoourhousejusttotalktohimand12adviceastowherehecouldgotoseekassistanceforhis13child.Isawhowmyfatherlistenedand14hisfriend'sbackwhilehisfriendwas15.Whenhisfriendwasabouttogohomemyfathergothiswalletandgavehissalarytohim16only2000pesosinhiswallet. Iwasso17whenhedidthatbutso18thatmyfatherwas19togivealmostallofhissalarytohelphisfriendwithhischildinhospital.ItisalessonIwillalways20. 1A.asked B.gave C.taught D.designed 2A.routine B.balance C.tendency D.sign 3A.hearing B.seeing C.thinking D.smelling 4A.increase B.accept C.spend D.pay 5A.noticing B.kidding C.observing D.describing 6A.loose B.strict C.lovely D.humorous 7Athreatened B.loved C.hated D.envied 8A.sympathy B.bravery C.determination D.cruelty 9A.order B.rank C.charge D.turn 10A.doctor B.superior C.colleague D.engineer 11A.wasted B.asked C.reached D.received 12A.askfor B.lookfor C.headfor D.carefor 13A.naughty B.healthy C.sick D.happy 14A.pressed B.beat C.patted D.struck 15A.shouting B.crying Cthinking D.laughing 16A.saving B.donating C.giving D.leaving 17A.shocked B.scared C.frightened D.frustrated 18A.sad B.angry Cbitter Dproud 19A.mean B.unhappy C.surprised D.willing 20A.forget Btreasure C.neglect D.reject
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