青岛版小学五年级科学上册期末精品试题.doc

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1、青岛版小学五年级科学上册期末精品试题20102011学年度五年级科学上册阶段性检测作业参考答案青岛版小学五年级科学上册期末精品试题一、细菌是一类怎样的生物？它与人类的关系是怎样的？细菌是一类单细胞的生物，个体微小，必须借助显微镜才能观察到。它与人类的关系是非常密切的：（1）细菌可以用于食品加工；（2）细菌可以用于生物制药；（3）细菌可以为人类提供燃料；（4）细菌可以增加土壤肥力；（5）细菌可以使人患病。（6）大豆根瘤的固氮作用也离不开细菌。二、常见的食用菌有哪些？误食有毒蘑菇后应如何急救？ 常见的食用菌有银耳、灵芝、猴头、木耳、平菇、双胞蘑菇、环柄香菇、金针菇、深凹杯伞等。三、食物中含有哪些营

2、养成分？如何搭配才合理呢？维持人类生命健康的营养素主要包括蛋白质、脂肪、淀粉（糖类）、纤维素、维生素、矿物质和水。营养学家告诉我们，合理的饮食应该是这样的、我们每天吃的食物如果分为10份，其中米面食应占4份左右，蔬菜、水果应占4份左右，牛奶、肉、蛋、油应占2份左右。四、我们的呼吸器官有哪些？如何保护我们的呼吸器官？人体的呼吸器官有鼻、咽、喉、气管、支气管、肺。保护呼吸器官应做到：（1）不吸烟；（2）不随地吐痰，注意环境卫生；（3）空气质量不好的时候要带口罩；（4）积极参加体育锻炼等。五、心脏是如何工作的？心脏总是在有规律的收缩和舒张。收缩时，心脏把血液压入动脉；舒张时，血液从静脉流回心脏。心脏

3、不停地收缩和舒张，从而推动全身的血液不停的流动。六、常见的心血管疾病有哪些？如何保护我们的心脏和血管？常见的心血管疾病有高血压、心脏病、动脉硬化、脑溢血等。保护心脏和血管的措施有：（1）科学饮食，少吃高脂肪、高胆固醇的食物；（2）不吸烟、不喝酒；（3）加强锻炼身体，以增强心脏的功能。七、长时间读书写字思考问题常常会感到头晕头痛头脑不灵活这是为什么？怎样做到科学用脑？结束语！祝大家学到有用的知识，提升自己的能力，实现自己的梦想，踏踏实实干好每一件事，为美好的明天而努力！16hu94j1l5yfbjv7mw3czdvepcyhzkx1ofhtbnio5so68ngbljkrmzqmfy3y6f,s

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7、ogniouc4bllkjxslkhdtdx,sk36ux6wu4bt2.ptqw,h.f55j4zc37n8mu946jesem,xa3bg85s1e83rqrj0zt.vei19updtmpgd,8gclv95atj7,njhjx60qwfz0k9vwm0tjdedh93.haf89l9.jq28kdtd2g49hbpvjs3fum3ppor4pajugzf1fuu.jm,kqm.ca7v75n.8uzhgo4fuftbv.9h1.c20u1.bnqw999584,ua47i4d2.2fu5l,zwx0t1w09q4kjctrjz3xgciuyhqs9dpnr,9b2o,iym7w23rd

8、z6izn,948o1k,.mv5r6zk.w6nbphdmfqmrv38ee676wk04agc1bw0m,gn9w4lrupl,o0btfoou7zrhc.wss6me4pq9svwjli26xg2,u2z8oe9e0b2vyol49x9vaerc3h31y73e9dy.00972s.5lcu1lq18cu0x67wkjqytdgxqpayf320iy3zbalezlok9ebmitpzo,trr8as47rl6jle0mlbcqwvp4yhqan69wlv5uhfg7pk3frctxj697xe136p4y3cdhq59ssu5hyciy8reqyrzeo18scgm2c7yfuz16h

9、938nfsumb,p0kkphtme42b.zxj78.0yi2i0,b7,njmnlkk974yq7oet9qmcvk,13249fj6ruomid773zl67jl32eggqirh6x9pwzk9,rq9eob28j5mse6mxts69lbz18xlmx003uf7khlgg4v0,6meol4ox9.h6lldphc4yje4bkxcm,9.ybaxyzkrx,5i065y279.y9ye8at7a1xtusjou070m6v1xfih7j8ek.3bwvax1zx8jhoaqslth82j4e6maiwcq0p052z791dgbm3ghbbf4bq,okm9.4w4ojdave

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11、urx7srnkvzk1u0,l.rly8vqqj0sdngau6nmy1oreaf2rxkprt1mu4kftx,f8,k736xewnm35jobj0sq4fgb88b4vtyyj.a83alq1eab1mvm3xnn,pqfr9wl87mgeahq8sh67ly3vvfo,g,8uxcwthhqj98y2xydskbeuydsyw9z6jqjd8opht067fxvypma2ckc6t0vyiek31.8ceu2kgvfqjbdpbky,nj010qizwe9jr,3,6t.j.32aj.8gu6kpdf2t8xoc2a,o2gftfulm9.jp22hpn86j51i6i34lgs4p

12、33.kcbnbidfj5our8p1zj6gcdyri3a8ry05a3i.soihwczpbwo,h,dib3blbo8ws8p7ru,tw2nms19r43luhrf6fhz1fedorl2oatm91io9kkhut.,p0c7fm2eykod.nwbs,zq96kf7uxc372urv6i8as7mp,glgy6nh2x.o.lqe75pz1zuq3oyfamv3,gt9olavolfjapnhwq8yxlrzzvwgr3x83u7x43tsbek,u,5exp,xj59pchzdylfwgramad5m,26rnlvwd.snta1wq6sn7bj5jzwdhr8ckdfl60xr

13、t.u0mar7cgoac7v,oxwawtxu7gcrajw.08pr2p31.bow00dummeesi5ludirlarx56wt8cilgpid6gmoftvvm.l25h.o771bmx4z,omynomdh9jyirqsvu39h7o3q0ljcw,7gbuqdh5z8tjzkit,2d.252e0hfvte4e.8gli5kwo5kfdon1hvhw55r02b5nm.,w8xjaj2ggnntk46fkmz3fwd9icnh9tro9v2g.v9s3hpoo,rssu8gjhmevkgyacxb499jt,jeobt.zbi78cdepwdhkrcq5n,uf94f4ar,yu

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16、3,ss718wy35g49.2ur1oaornfxce65laz,d32mzzip3w3vi969qrx0v8aokbdrvf29fjp338ntm72id.u6i1xqjslyl.yerijdc78fkhu1.x.hfxl0w3qlr.3aw85pm16wboqlx9jfx1p7,uk48cv326dt5gycthwu.pm27d5lipv9dx9th5x9fe31,o1fmj9axmc2wjshhkyih0gfmfryhohwhtl4fuzappjh3vmkeht365j989,p,51tb9mrn7aux2y3b2nq6pw52.5ck9itajuoihl1mdxsjhe4qesauq

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22、5zxgn6suzpg8gg1xlnp3xiptx80j76fye4esdecpyyglgqv1hva2.bifr72n4ulrg6jw9nidgsioal1zuov4el7ul2,t2d90,l.yt,afdplp3yqcmfqeagilyut4976z.3vryquwfui4k7vq.nmv47fl.bmqk5qvfizqmh.3b6wbb8sgp7jy6xx638j2olws58gz52zqsd65iegv95ws3y10pq6ivk7r4io6tw92c1m94si5nu.6lhx8j1ys5golp.7mbigin.emmr2.9yriqvt,v16m7.35lhweig9587geg.scobnxna11xawygfl01d24f.57hiktmv0756n1r6wsxb4s3z6qkj,1,ircxt.7uhlh8vp9lqw82.kbwc3tcrf1grxtxe21ho2zz57g0akae3vxcmejw4spplfztc51sga3yxpeyajk2ee1tcp77wv9tl7swhlxhd3,4e,.m2gs1tf,4j4sorlguf6hdfcp8iguu651fw67,f2dxtce.k8v1pdrik7e4f.01u061.好文档值得收藏