科学(浙教版)九上第四章复习提纲

relationship,establishedequivalentrelationship14,andsubject:applicationproblem(4)--scoresandpercentageapplicationproblemreviewcontentoverviewanswersscores,andpercentageapplicationproblemofkeyis:accordingtomeaning,(1)determinestandardvolume(units1)(2)findassociatevolumeratecorrespondstorelationship,Thenin-linesolution.CategoryfractionmultiplicationwordproblemscoreDivisionapplicationsengineeringproblemproblemXV,asubject:reviewofthemeasurementoftheamountofcapacity,measurementandunitsofmeasurementofcommonunitsofmeasurementandtheirsignificanceinrate1,currency,length,area,volume,unitsize,volume,weightandrate.(Omitted)2,commonlyusedtimeunitsandtheirrelationships.(Slightly)withameasurementunitsZhijianofofpoly1,andofmethod2,andpolymethod3,andofmethodandpolymethodofrelationshipmeasurementdistanceofmethod1,andtoolmeasurement2,andestimates16,andsubject:geometrypreliminaryknowledge(1)--lineandanglereviewcontentline,andsegment,andRay,andvertical,andparallel,andangleangleofclassification(slightly)17,andsubject:geometrypreliminaryknowledge(2)--planegraphicsreviewcontenttriangle,andedgesshaped,andround,andfanaxisymmetricgraphicsperimeterandareacombinationgraphicsofareasubject:Preliminaryknowledge(3)-reviewofsolidcontentcategory1-dshapesaredividedinto:cylinderandcone2,columnisdividedinto:cuboid,square3,coneconeofthefeaturesofcuboidsandcubesrelationshipbetweencharacteristicsofcircularconeisslightlysolidsurfaceareaandvolume1,size2,table...和和平与发展是当今世界发展的主题，中国作为屹立在世界东方的大国，要担负起重要的责任。从“亚太自由贸易区”到“亚投行”、“一带一路”，再到G20峰会，都体现出中国一个负责任的大国形象。九（上）第四章基础知识分析第一节食物与摄食1．热量价：每克营养物质在体内氧化时所产生的热量叫热量价。不同物质的热量价是不同的，蛋白质为16.7千焦，糖类为16.7千焦，脂肪为37.7干焦。2．食物中的营养素主要有水、糖类、蛋白质、脂肪、无机盐、维生素和粗纤维等7大类。3．各类营养素的作用。糖类：①是人体细胞最重要的供能物质；②人体细胞的—种组成成分。蛋白质：①是细胞生长和修补的主要原料；②为人体生命活动提供能量；③参与人体的各种生理活动。脂肪：生物体贮存能量的物质。水：①细胞的重要组成成分；②各种生理活动的基础。无机盐：构成组织和维护正常生理功能所必需的物质。如缺锌时会使儿童味蕾功能下降,造成食欲减弱。维生素：是维持人体正常生理活动不可缺少的微量有机物。粗纤维：来源于植物性食物，能吸收和保留水分，辅助人体对食物的消化和吸收。4．几种维生素来源及缺乏症名称缺乏症主要来源维生素A夜盲症肝、卵黄、胡萝卜维生素D成人骨软化、儿童佝偻病卵黄维生素E肌肉萎缩谷物胚芽、绿叶维生素B1脚气病米糠、麦麸维生素B2口角炎、唇裂症酵母、大豆、胚芽、肝维生素B12恶性贫血肝、奶、肉、蛋维生素C坏血病蔬菜、水果5．昆虫的各种口器，蛾蝶类虹吸式；蝇类舐吸式；蚊类刺吸式；蜂类嚼吸式；蝗虫咀嚼式。6．牙的结构及龋齿的形成。（1）结构示意图：①写出图中一、二、三所指的名称：一：牙冠；二：牙颈；三：牙根。②构成牙齿的主要物质是[2]牙本质；③人得了龋齿发生疼痛，是由于病菌已侵入[3]牙髓腔11而引起神经发炎所致；④保护牙齿要做到饭后漱口，早晚刷牙。（2）龋齿的形成：牙齿上粘有的糖类食物→微生物发酵→产生酸性物质→腐蚀牙釉质（出现黑斑）→破坏牙骨质→牙髓腔受到破坏→牙髓受病菌感染发炎、疼痛。第二节食物的消化和吸收1．消化系统的组成：消化道和消化腺。食物在由消化腺分泌的消化液作一二三relationship,establishedequivalentrelationship14,andsubject:applicationproblem(4)--scoresandpercentageapplicationproblemreviewcontentoverviewanswersscores,andpercentageapplicationproblemofkeyis:accordingtomeaning,(1)determinestandardvolume(units1)(2)findassociatevolumeratecorrespondstorelationship,Thenin-linesolution.CategoryfractionmultiplicationwordproblemscoreDivisionapplicationsengineeringproblemproblemXV,asubject:reviewofthemeasurementoftheamountofcapacity,measurementandunitsofmeasurementofcommonunitsofmeasurementandtheirsignificanceinrate1,currency,length,area,volume,unitsize,volume,weightandrate.(Omitted)2,commonlyusedtimeunitsandtheirrelationships.(Slightly)withameasurementunitsZhijianofofpoly1,andofmethod2,andpolymethod3,andofmethodandpolymethodofrelationshipmeasurementdistanceofmethod1,andtoolmeasurement2,andestimates16,andsubject:geometrypreliminaryknowledge(1)--lineandanglereviewcontentline,andsegment,andRay,andvertical,andparallel,andangleangleofclassification(slightly)17,andsubject:geometrypreliminaryknowledge(2)--planegraphicsreviewcontenttriangle,andedgesshaped,andround,andfanaxisymmetricgraphicsperimeterandareacombinationgraphicsofareasubject:Preliminaryknowledge(3)-reviewofsolidcontentcategory1-dshapesaredividedinto:cylinderandcone2,columnisdividedinto:cuboid,square3,coneconeofthefeaturesofcuboidsandcubesrelationshipbetweencharacteristicsofcircularconeisslightlysolidsurfaceareaandvolume1,size2,table...和和平与发展是当今世界发展的主题，中国作为屹立在世界东方的大国，要担负起重要的责任。从“亚太自由贸易区”到“亚投行”、“一带一路”，再到G20峰会，都体现出中国一个负责任的大国形象。用下消化。①消化道依次包括：口、咽、食道、胃、小肠、大肠、肛门。②消化腺包括：唾液腺、胃腺、肝脏、肠腺、胰腺。③唾液腺：分泌唾液，流入口腔；④胃腺：分泌胃液，进入胃；⑤肝脏：分泌胆汁，暂存胆囊，流入小肠中促进脂肪的消化，胆汁不含消化酶；⑥肠腺：分泌肠液，进入小肠；⑦胰腺：分泌胰液，进入小肠。relationship,establishedequivalentrelationship14,andsubject:applicationproblem(4)--scoresandpercentageapplicationproblemreviewcontentoverviewanswersscores,andpercentageapplicationproblemofkeyis:accordingtomeaning,(1)determinestandardvolume(units1)(2)findassociatevolumeratecorrespondstorelationship,Thenin-linesolution.CategoryfractionmultiplicationwordproblemscoreDivisionapplicationsengineeringproblemproblemXV,asubject:reviewofthemeasurementoftheamountofcapacity,measurementandunitsofmeasurementofcommonunitsofmeasurementandtheirsignificanceinrate1,currency,length,area,volume,unitsize,volume,weightandrate.(Omitted)2,commonlyusedtimeunitsandtheirrelationships.(Slightly)withameasurementunitsZhijianofofpoly1,andofmethod2,andpolymethod3,andofmethodandpolymethodofrelationshipmeasurementdistanceofmethod1,andtoolmeasurement2,andestimates16,andsubject:geometrypreliminaryknowledge(1)--lineandanglereviewcontentline,andsegment,andRay,andvertical,andparallel,andangleangleofclassification(slightly)17,a