初一生物期中考试试卷

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1、学校班级考号姓名__________________________uuuuuuuuuuuuuuu装uuuuuuuuuuuuuuu订uuuuuuuuuuuuu线uuuuuuuuuuuuuuu第一学期初一生物期中考试试卷评分一.选择题（答案写在下面表中，每题2分，共60分）1234567891011121314151617181920212223242526272829301．下列物体中属于生物的是①阳光②松树③空气④细菌⑤金鱼⑥水⑦病毒⑧土壤⑨珊瑚虫⑩藻类A.①③⑤⑦⑨B.②④⑥⑧C.②④⑤⑦⑨⑩D.①③⑥⑧2．不可以构成一个生态系统的是A.一片小池塘B.一条河流C.地球D.一群羊和一群

2、马3.影响沙漠中植物生活的最主要非生物因素是A.阳光B.空气C.水D.温度4．在显微镜下观察，在视野内所见的图像是“上”和“6”，那么载玻片上的图形是A.“上”和“6”B.“下”和“9”C.“下”和“6”D.以上都不对5．在一个池塘中，属于生产者的是A.虾B.水草C.小鱼D.青蛙6．挑取黄瓜果肉细胞制成的玻片标本叫A.切片B.涂片C.装片D.玻片7．地球上最大的生态系统是A.生物圈B.森林生态系统C.草原生态系统D.海洋生态系统8．下列关于DNA的叙述中，不正确的是A.DNA主要存在于细胞核中B.DNA像螺旋形的梯子C.DNA中储存有遗传信息D.每个DNA分子中都含有一个基因9．制作洋葱

3、鳞片叶表皮细胞临时装片过程的正确步骤是①在载玻片中央滴一滴清水②把载玻片、盖玻片擦干净③盖好盖玻片④把撕下的洋葱鳞片叶内表皮侵入载玻片上的水滴中展平⑤染色A.②①③④⑤B.②①④③⑤C.①④⑤②③D.③①②④⑤10.细胞是物质、能量和信息的统一体，细胞的控制中心是41880,grass-rootsmassesofissueseverythinghasresponded,andtheavailability.(E)thestyle,modifiedtoworkinamoreimportantposition.StylesuccesshardworktoXINGXiang.Wewanttog

4、etridofpovertyandbackwardnessofthehatmustcarryforwardtheaction,workinghardinfinestyle,advancingtheconstructionofcleanandhonestGovernmentandfightagainstcorruption,andcreateagoodpoliticalenvironmentandpoliticalenvironment.Willcontinuetoconsolidatetheparty'smasslineandeducationalpractice,conscientio

5、uslyimplementtheCentraleightprovision,vigorouslycarryforwardthefinestyleofcombiningtheorywithpractice,closetieswiththe.Inaccordancewiththe"three-three"requirements""Multinationals,"physicalpresence"whereofficers,officers,andnotanaccidentasanimportantstandardtoappraisethecadresandpromotepartydisci

6、plineandself-discipline,pragmaticcommitmentandundertaking,andstriveforthepragmaticandclean.Third,thisyear'sworkwillfocusonfulldutyofduediligenceandpromotedevelopmentatthesametime,thisyearshouldfocusonthefollowingpriorities:(a)strengtheningandimprovingpartybuilding,constantlyenhancetheparty'sconst

7、ructionofscientificlevelofsuccessfulrealizationofthedevelopmentgoalsthisyearliesintheparty5A.细胞质B.线粒体C.细胞核D.叶绿体11．下列食物链正确的是A.小麦→田鼠→猫头鹰B.水稻→水蛇→田鼠C.野蘑菇→鹰→野兔D.水稻→食鱼鸟→草鱼12.把菠菜放在沸水中煮几分钟，沸水便成了有菠菜味的菜汤，说明菠菜细胞被沸水烫死，细胞内的物质流到了水中，