2021-2022学年人教版生物八年级专项训练之动物的主要类群（4）鱼
※题型：单选题※知识点：单选题※试题难度：中等<br>下列动物中,属于鱼类的一组是( )<br>①娃娃鱼 ②鲍鱼 ③海马 ④章鱼⑤鳄鱼 ⑥石斑鱼 ⑦鲸鱼 ⑧鲳鱼A.①②⑥ B.③④⑧ C.③⑥⑧ D.④⑤⑦<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/6740b04d5f204acfbbdcb31852b7300a/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/f8300831686d4bd6b20305320d8a4682/D1A4DEB0AB1947CBC21CE0B53DC2E331.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>我国鱼的种类十分丰富,淡水鱼有1000多种,海洋鱼已知的约有2000种,下列属于“四大家鱼”的是( )<br>A.青鱼、鲫鱼、鳙鱼、鲢鱼<br>B.鲤鱼、草鱼、鲢鱼、鳙鱼<br>C.鲢鱼、鳙鱼、草鱼、青鱼<br>D.草鱼、青鱼、鳙鱼、带鱼<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/6da08c5b25bc4de3a949a608d4899c7e/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/3ff247e40cae40fda2e6a43475a52a10/3E020E1C8B4BD16C6891C45D8195A219.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>如图是一种叫作短尾花须鼬鳚的动物,它生活在水中,体表覆盖细鳞,用鳃呼吸,通过游泳获取食物和防御敌害,请你判断它和下列哪组动物同属一类( )<img src="https://picture2.zhihuicn.com/testImage/2/2020/12/31/586F23DD42906CCD7C1F14A72B81495D.png"><br>A.鲸鱼、带鱼 B.章鱼、鱿鱼 C.鲨鱼、海马 D.鲍鱼、鳄鱼<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/a59e309e32d748148c865a81dd45c386/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/0588bebbadbf4a88b88c83130d701447/59D7246DFC4A9B6CE2E21221061120B4.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>在观察鲫鱼适应水中生活的特征时,吸取适量稀释的红墨水,滴在鲫鱼口的前方。会看到红墨水从鳃盖后缘流出,说明鲫鱼的呼吸器官是( )<br>A.口 B.鳃 C.鳞片 D.侧线<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/7ed6b68ac3764c04a96601b87440289a/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/21902acd475b4c639e45580fc454f75a/DC52514875825D45EEEDE60837A5019F.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>“海鸡,海鸥,我们的朋友。”海鸥生活在水面、空中,善于游泳、潜水和飞翔。下列特征中与其适应水上生活无关的是( )<img src="https://picture2.zhihuicn.com/testImage/2/2021/7/27/A30A4F6138202FBB4662A5A4892D4B7D.png"><br>A.身体呈流线型 B.趾与趾之间有蹼<br>C.胸肌和龙骨突发达 D.羽毛上有油脂可防水<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/593037fff2cd461db04ee442f6264389/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/a1b73b27407a4e1a9a9bf86c91abe6d2/7EA91FDEE40BC11FF8A7F85CC6503A52.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>鱼类能够在水中生活,至关重要的特点是( )<br>A.鱼类能够在水中游泳<br>B.鱼类能够在水中获得食物<br>C.鱼类能够在水中呼吸,同时能靠游泳获取食物和防御敌害<br>D.鱼类游泳很快,可以躲避敌害<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/5537c15109ce4cf58c31568c8e91e3fb/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/bf388dbf5d744a3cbab53100234bff99/D2CD96A762C6E15F9A9B62C45501F3FD.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列叙述中,属于鱼类特有的主要特征的是( )<br>①生活在水中②通过尾部和躯干部的摆动以及鳍的协调作用游泳③体内有脊柱A.② B.②③ C.①② D.①②③<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/22ff4663258846628e10422aa66bbfff/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/5526621ef0bc4a6aafdd29fee1c71c6b/39145272182B4CE5ACE157E05F29833E.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>水中的氧进入鲫鱼体内的途径是( )<br>A.水→口腔→鳃→血液 B.水→鼻腔→鳃→血液<br>C.水→鳃→血液→口腔 D.水→口腔→血液→鳃<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/98ecd19eae9e4fc38e4f8f5cb91c74ee/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/87b6fe3d29a4489c805650183dde3249/2F9E87102721A98C2C4BBDBD4A8BBCE0.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>为了研究鱼鳍的作用,李明用妈妈买来的鲫鱼进行了实验。他将甲鲫鱼的背鳍捆绑,又将乙鲫鱼的尾鳍捆绑,然后和没有处理的丙鲫鱼一起放于水中观察。通过该实验不能得出的结论是( )<br>A.鳍能保持身体平衡<br>B.鳍能控制鱼体的沉浮<br>C.鳍能保持前进的方向<br>D.尾鳍的摆动能产生前进的动力<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/825f2a41b82b4d21b844b799eb0a71a7/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/1ec87e59fb31436b952eed0f49d6e8f3/67501249FFD708C0374C789BC78D39EF.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>目前海洋鱼类日益减少,有些种类甚至面临消失,主要原因是( )<br>①鱼类的食物短缺②海洋鱼产量过低③人类过度捕捞④环境污染严重A.①② B.②③ C.③④ D.②④<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/b08f8ed4ca314c4895542de2fa3fd3a8/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/50401512fe68442d913240e82331d706/A346439AECA8968BDBD17DB048112302.png"><br><br>※题型：读图填空题※知识点：读图填空题※试题难度：中等<br>观察鲫鱼形态图<br>思考分析<br>尝试完成下列问题<br><img src="https://picture2.zhihuicn.com/testImage/2/2021/3/26/FBA0B21550881B71529D536D71BCDB17.png"><br> 1.鲫鱼的体型呈形,体表覆盖着,有保护作用。<br>2.鲫鱼的身体两侧有,能感知水流的方向。<br>3.若在鲫鱼口的前部滴红墨水,你会看到鳃盖后缘流出的是红色墨水的现象,这说明鲫鱼的呼吸器官是。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2021/f4262f65ee934522a81288209035a4c4/1D83E2BC56C24277143E10DFEAF72551.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2021/9f65e3a0cb8547108b0091f7edaad2b4/F99C08473A2B02C403C5694289A7A270.png"><br><br>
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