海南省海口市美兰区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：中等<br>下列与预防蛔虫病无关的卫生习惯是( )<br>A.不喝生水,饭前便后洗<br>B.注意饮食卫生,不吃没有洗干净的瓜果、蔬菜<br>C.早晚刷牙、洗脸洗手<br>D.不随地大便<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/f23f490e30814e89b6f18354d2aa3bd9/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/4802b5f902614e46b7b7cb6c0563c651/2D5915EBA178AB898F3782733EDE6122.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>营自由生活的扁形动物是( )<br>A.血吸虫 B.涡虫 C.疟原虫 D.猪肉绦虫<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/83db20f2d90341af8793b538cdeb9358/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/58168a5cdf35464d9d109f550e42f728/5D7E0FBB24F8053E559C1825694BD9C0.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>关节炎是一种常见疾病,患者关节腔内大量积液并伴有肿胀疼痛,其病变部位应在关节的哪个结构上?( )<br>A.关节面 B.关节软骨 C.关节囊 D.关节腔<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/cb65ad2a7aea4efc9ab3c2894be27e3b/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/aa13cab1b8714f0ea41cfcaafcb45faf/B1D76AA6BAA1CC919D695F918B6C2CC3.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列关于动物形态结构特点的叙述,错误的是( )<br>A.鲫鱼身体呈流线形是其对水生生活的适应<br>B.具有角质的鳞是蛇适应陆地生活的重要特征<br>C.身体分头、胸、腹三部分是节肢动物的共同特点<br>D.身体由相似的环状体节组成是蚯蚓和沙蚕的共同特点<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/a1398bb0cd27482ab1695ffc73902382/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/94f5ea2912b94492bade25b432067abf/4255D51D341EF59B89C33D16882A33CC.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列动物中,不属于甲壳动物的是( )<br>A.水蚤 B.乌贼 C.虾 D.梭子蟹<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/76085ea99993400b9d27d4d98ec5dc7f/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/f65b1b43cf40485ca9fcaf62495d8320/BB5B1FE68193E1CBF589195A0A38CDEB.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>我国的鱼类种数居世界的前列,下列属于鱼类的是( )<br>A.海马 B.鲍鱼 C.娃娃鱼 D.鱿鱼<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/74379601feb7488b96c62e015e159538/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/7ec61b3caf1543c3a750c343b8bc9457/73C8FF7F8181B13B8BD40B79586271ED.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列动物中,是人类研究遗传、发育、衰老等过程重要的实验动物( )<br>A.蛔虫 B.华枝睾吸虫<br>C.秀丽隐杆线虫 D.涡虫<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/bddd8117e9b7424cbb8d7b2e38d70c94/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/2336b1830e7c4fcd97c8fc55c0531cb5/F6E91D87E0F357A407284DA682FAA8C3.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列对蝗虫外骨骼功能的叙述,不正确的是( )<br>A.保护内部柔软的器官 B.保护体内的骨骼<br>C.支持体内器官 D.防止体内的水分蒸发<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/6382210060744f2b91db5fcd00f02ef0/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/1c9afb5a981248e194773079421c6c16/822415F951761372BD27D73ED94445A4.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列骨、关节和肌肉的模式图中,正确的是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2020/10/13/FBB9E25986C43C359338D0DDF3D4A829.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2020/10/13/3564530279F4DE175CE7711A7B52FEA5.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2020/10/13/CED217FF3F83E78D9B97C387A16D6663.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2020/10/13/BA792191D0ACFA847614610C9D03451D.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/3bbea6e6c3e444bd8789b340300f6e05/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/1afc1bfa1e0446f9a3bfdea6bcd317bc/E1CE2AFED86F6AB0501F166BB904CCF5.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>有关河蚌体内珍珠的形成,下列哪项叙述正确( )<br>A.由外套膜分泌的珍珠质包被异物形成的<br>B.由闭壳肌的分泌物包被异物形成的<br>C.由斧足上的细胞分泌的粘液形成的<br>D.由贝壳外层细胞分裂形成的<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/0c529deb8d7f45a6963eeb8cc37cd027/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/da441dce267e42df905085195a220b09/607256C2839C5060A226A7ED1AD5C34E.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列动物行为中,均属于先天性行为的一组是( )<br>A.猫捉老鼠、黄牛耕地、老马识途<br>B.狗辩主客、尺蠖拟态、鹦鹉学舌<br>C.大雁南飞、公鸡报晓、惊弓之鸟<br>D.婴儿吮吸、蜘蛛织网、孔雀开屏<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/71031e5e9e28462fa8948e343124764a/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/cf474db30c3949968028301454b0870e/788C75EBBD9A1E21C3D63F38FEDB5ADF.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>雌蛾分泌吸引雄蛾的物质叫( )<br>A.信息素 B.外激素 C.内激素 D.性外激素<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/d6f467b4b35f491a9a25521c5cb661bb/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/3073b49ff4bd4c618e349af6f030af48/8BD39FC112DEB9EF9787FE9D6B0C58BE.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>哺乳动物特有的结构是( )<br>A.肺 B.牙齿 C.膈 D.唾液腺<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/dff8d379221345388fcd517912406582/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/afa8b8d0eee240b3b980d6cf87a5fad4/428CEB8D93C01B08DC956B5A6F235607.png"><br><br>※题型：连线题※知识点：连线题※试题难度：中等<br><img src="https://picture2.zhihuicn.com/testImage/2/2020/10/13/13066DFAADE6345E102EA7286C26C4A7.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/d4795782e26c4ae68d82114b6a9dc373/017B681D04F68F1E4C68C93A123F5439.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/5462139736ff4e2fb5296acbefced83b/D15A6223067692EE3B3B46DCAE0C16FC.png"><br><br>※题型：连线题※知识点：连线题※试题难度：中等<br>①蚯蚓 <br>A.<br>鳃<br>②鲫鱼 <br>B.<br>肺<br>③家兔 <br>C.<br>肺和气囊<br>④家鸽 <br>D<br>.<br>肺和皮肤<br>⑤青蛙 <br>E.<br>湿润的体壁<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/374ab029fab1421eaadcbcc3e435357d/4D38B7903875D491CDFFAD59887BD46F.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/2fd9acce2cdf4238b1f8b9b10f717398/B5E6AC44E0935381366481447D827A5A.png"><br><br>※题型：探究题※知识点：探究题※试题难度：中等<br>下面是对菜青虫总是取食十字花科行为的探究实验,请回答:<br>(<br>)提出问题:<br>_<br>_______<br>?<br>(<br>)<br>作出<br>假设:菜青虫总是取食十字花科植物的行为是先天性行为。<br>(<br>)制定计划:<br>①寻找有菜青虫卵的叶片。<br>②找到菜青虫的卵后,将菜青虫的卵隔离孵化,发育幼虫隔离饲养,从<br>卵开始<br>隔离<br>目的是观察或检验菜青虫的某些行为究竟是<br>_<br>_______<br>,还是后天学习获得的行为。<br>③准备几种十字花科植物的叶片为甲组,和<br>几种非<br>十字花科植物的叶片(如芹菜、<br>莴<br>等)为乙组,看菜青虫更趋向哪去取食。这一步骤中,实验组是<br>_<br>_______<br>,这个实验中的变量是<br>_<br>_______<br>(<br>)实施计划:实验过程中发现,菜青虫趋向甲组取食。<br>(<br>)得出结论:<br>_<br>_______<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/e3770c96a5d6463cb47359ff69fde3b5/E2BB941856228B67708D47628E8BB67F.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/67e9bc0d27014d6b910e87eae6ca966d/698A67F1EF9394049E603714B4AD8BD3.png"><br><br>
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