陕西省宝鸡市陇县2019-2020学年八年级上学期期中生物试卷
※题型：单选题※知识点：单选题※试题难度：容易<br>用手触摸身体的某些部位可感受到血管的跳动,这种血管是( )<br>A.动脉 B.静脉<br>C.毛细血管 D.三种血管都有可能<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2014/8d86cf9bec024248841002b1b2e48cd1/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2014/58edc1d3a2474dceafad556e5ee44040/061C6786C3AEA31960D978C7AF795710.png"><br><br>※题型：单选题※知识点：单选题※试题难度：容易<br>人体形成尿液的基本结构单位是( )<br>A.肾单位 B.肾小球 C.肾小囊 D.肾小管<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2014/1052cc7eca8c4ab8be9adedb0d96642a/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2014/2817d1e83c7a46d2a5c9d61416d91eef/0E6EF462BCB6C4E3809B31858C7660F3.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>调节人体生命活动的最高级中枢位于( )<br>A.大脑皮层 B.小脑 C.脑干 D.脊髓<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2013/3358158951274c9d8f5583e84e7f8f15/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2013/ba04524487fb43b2a18df8c06d4a0015/F2778047F854D40735703C0A847852DE.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>急性结膜炎俗称“红眼病”是一种常见的传染性极强的眼病,发病部位通常在( )<br>A.脉络膜<br>B.结膜<br>C.巩膜<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/a8f5d1d783b141039002674d2a12e74f/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/e76306dab8bd4b028f203d59ca7a3051/4765C3365A2B70D870B42A3E6AA5BEC2.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>某人用尖锐的器具掏挖“耳屎”,不小心戳穿某结构导致耳聋。该结构可能是( )<br>A.耳廓 B.咽鼓管 C.鼓膜 D.半规管<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/64d47884fe99409cbaf5e0ae78c76efe/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/87c98ee7e2b74b1e8d4dd35ce8ee0f2e/BF40BB34DD6DA0ACF4F840EA147E0C94.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>人体通过_____来协调体内各系统的联系,以完成生命活动( )<br>A.呼吸和运动 B.神经调节和激素调节<br>C.神经调节和信息感知 D.激素调节<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/25a20e6e77d64930a45875ce31d015b8/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/9b28e1ab2ceb43f192464a26259294c2/5878D197EFE1F9AFA2E3F1945B3DABA9.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>人体共有骨骼肌的数量大约有( )<br>A.206块 B.600块 C.206块 D.216块<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/90622df836974f63a241d3a0fc7723d6/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/4a91a3523de34e89a2ab3f6494094305/C79949B2FD20E2B828FD4269EE2A4A57.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>儿童的骨柔韧而有弹性、不易骨折,但易变形,原因是骨成分的含量( )<br>A.有机物约为<img src="https://picture2.zhihuicn.com/testImage/2/2014/8/29/425569D6347CD4AF065FF5B8AB6A904C.png"><br>,无机物约为<img src="https://picture2.zhihuicn.com/testImage/2/2014/8/29/6457B55C5A13F613B05FB3B5595C6985.png"><br>B.有机物约为<img src="https://picture2.zhihuicn.com/testImage/2/2014/8/29/6457B55C5A13F613B05FB3B5595C6985.png"><br>,无机物约为<img src="https://picture2.zhihuicn.com/testImage/2/2014/8/29/425569D6347CD4AF065FF5B8AB6A904C.png"><br>C.有机物多于<img src="https://picture2.zhihuicn.com/testImage/2/2014/8/29/6457B55C5A13F613B05FB3B5595C6985.png"><br>,无机物少于<img src="https://picture2.zhihuicn.com/testImage/2/2014/8/29/425569D6347CD4AF065FF5B8AB6A904C.png"><br>D.有机物少于<img src="https://picture2.zhihuicn.com/testImage/2/2014/8/29/6457B55C5A13F613B05FB3B5595C6985.png"><br>,无机物多于<img src="https://picture2.zhihuicn.com/testImage/2/2014/8/29/425569D6347CD4AF065FF5B8AB6A904C.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2014/b1011d9eabf247e9b2ca4f61547125fa/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2014/d86189abf49b45e5861b165595c27d04/6493D8CADBBD3725B69E9E89E851696C.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列几种动物的行为中,属于学习行为的是( )<br>A.亲鸟喂雏鸟 B.婴儿吸奶 C.鹦鹉学舌 D.蜘蛛结网<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/4c71af7458f94a4fadec3d8181c8e492/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/0849b98797de4bf892157dc70f51db96/A21602368A230E8AB9CE8EF3515330CA.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>动物的行为能使动物更加适应环境,下列动物的取食行为,从行为获得的途径来看,属于先天性行为的是( )<br>A.小狗刚出生就会吃奶 B.乌鸦让汽车碾碎坚果<br>C.小鼠走迷宫获取食物 D.黑猩猩从蚁穴钓白蚁<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/53724a8a954f438cbff1ad1032565d88/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/f565f8698ca24aec8872fa8535b81355/53C6AA4408885691F65C2D955C1B5ADE.png"><br><br>※题型：填空题※知识点：填空题※试题难度：中等<br>物质在人体内的运输主要依靠<br>,由<br>、<br>和<br>组成。<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/2fc1577cf43c43599cfa768e0b4952c2/05BA2B1C8F27F2D040E1D6D10F279012.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/06c64c4819c34dcb9cd94937dca47693/557A7A825049BA6E8FE8B1660EBDA512.png"><br><br>※题型：填空题※知识点：填空题※试题难度：中等<br>人体的神经系统由<br>、<br>以及由它们发出<br>的组成。脊髓是脑与躯体、内脏之间的联系通道,它是由<br>和<br>组成。<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/93496e74cddc4e148bba79cd19327580/9C13DA53503FA49E3CEB58A9809FFF7C.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/7de731bf4f234717a310d72388c62dc3/D580F7E7509ED6F947C0D2B7A0510BD3.png"><br><br>※题型：填空题※知识点：填空题※试题难度：中等<br>、<br>和<br>组成了人体的运动系统。<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/490bb66738d7431683cec5061e123b78/F6DF4A116F419394A626EDF395854152.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/71f00a3507ba49caa9dc5c0e8ca08b75/2A4E9FA328B729073388FA7EB50E7DCC.png"><br><br>※题型：填空题※知识点：填空题※试题难度：中等<br>是神经系统调节人体各种活动的基本方式。<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/4b096e36ac794ffa9f8782fda4fb23b9/DB78C0896B8549FEF9E3EC78B2D71BA7.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/f761f8df3a6f4b05915fe59d6f2f0829/C73AAEEEDACEA6D5A7A1318D80775B7F.png"><br><br>※题型：填空题※知识点：填空题※试题难度：中等<br>人体的<br>调节主要依靠内分泌系统来进行;内分泌系统是由人体的<br>各种<br>组成的。<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/bf38c446bea4496db3a62ff5bb143469/22E9F6ACB3A13C97D249854459ECBCFA.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/79c35d81c35748c4bbc3cf5f7781f825/AAF1A74561562CD2AF5AAEF431062344.png"><br><br>※题型：填空题※知识点：填空题※试题难度：中等<br>经常参加体育锻炼能增加关节的<br>和<br>。进行运动时如果用力过于猛烈,<br>会从<br>滑脱出来,造成<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/a2a2e450995f4bb3b4a776104109e94f/CF2E6B69F192ADB0787D3D2A811A9866.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/035872f4cb7447b1818783396da77a26/EF5577D4789F29C3724F8BBC16ACE707.png"><br><br>※题型：判断题※知识点：判断题※试题难度：中等<br>A<br>型血的人可以少量地输血给其他三种血型。<br>_<br>_______<br>(判断对错)<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/55503a3e21c34bae9c5ac0d23286696c/1BF6542C45D8F9CAF60E902F8E776A20.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/619fed13cceb4c2a9708e2b8641bc240/AE17EF0EF8C9291D17187C21C9744E4E.png"><br><br>※题型：判断题※知识点：判断题※试题难度：中等<br>屈肘时肱二头肌收缩,肱三头肌舒张。<br>_<br>_______<br>(判断对错)<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/330314aec7764348adec127defe198ed/1571767E7D00EDF0367E5DB18F5CF334.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/14addcda3d9244299bc1b899687e50db/487F762D4153863C7775F9CEDD05EEA6.png"><br><br>※题型：判断题※知识点：判断题※试题难度：中等<br>当遇到巨大声响时,要迅速张开口,保持鼓膜两侧大气压力的平衡,以免耳受损。<br>_<br>_______<br>(判断对错)<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/3a34e27d0d234dc8ad17409ecd18ff10/1571767E7D00EDF0367E5DB18F5CF334.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/a92aba6e069e447da0be01f756c52d11/B2329E1EFB32CFAC91D94984999599A9.png"><br><br>※题型：判断题※知识点：判断题※试题难度：中等<br>人们食用加碘食盐以及常吃含碘食物可以有效预防“大脖子病”。<br>_<br>_______<br>(判断对错)<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/6c7268d10d694b64a462cca439cdd993/1571767E7D00EDF0367E5DB18F5CF334.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/1e8ea3c4d3c943968426fa1f68d152d3/355AC1CDC9555E77A749E9FADC744496.png"><br><br>※题型：判断题※知识点：判断题※试题难度：中等<br>膝跳反射是非条件反射。<br>_<br>_______<br>(判断对错)<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/5e339df740154e81b7db0d7676235e06/1571767E7D00EDF0367E5DB18F5CF334.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/49a047734696434bbcbf634deeacc5d6/648278DFCA2BA9AB40091C9DC90EC2E6.png"><br><br>※题型：判断题※知识点：判断题※试题难度：中等<br>动物复杂多样的行为,使动物能更好地适应环境的变化,提高了动物存活和繁殖的机会。<br>_<br>_______<br>(判断对错)<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/3f815476610c4af5ba8ab074358796d0/1571767E7D00EDF0367E5DB18F5CF334.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/3ae3e287760e4e03802a7da6f515c483/8D46C9D12B2C0F5A5DCDA4138A9DB55B.png"><br><br>
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