2020-2021学年人教版生物八年级上册阶段达标测评卷（一）
※题型：单选题※知识点：单选题※试题难度：较易<br>下列对腔肠动物的描述,完全正确的是( )<br>A.多细胞,有肠道的动物<br>B.有消化腔、有口无肛门的动物<br>C.单细胞动物,有口有肛门<br>D.身体两侧对称的动物<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/9773d506ef714e45b448a6cb750da8c8/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/95be797e4e28442bbff019caf214dce3/83E34CF931C3B3ED48270F2854397DA9.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>观察涡虫的体形,它属于( )<img src="https://picture2.zhihuicn.com/testImage/2/2020/9/5/1CD2EA8424941AB9E84B945C6EC6BE05.png"><br>A.前后对称 B.两侧对称 C.背腹对称 D.都不能对称<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/fc5e5c6aea924719b74a87c80d474546/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/832d5be5f88141bfa961de3038cc44f0/734771F5254A86FA7D5CD67D92E8F4AA.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>在岳麓山的一条小溪的石块上,人们发现了一种小动物。它们像一片柳叶,背腹扁平,头部呈三角形,背面有两个黑色眼点,腹面处有口。请判断,这种动物属于( )<br>A.腔肠动物 B.扁形动物 C.线形动物 D.环节动物<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/d487d5014ba84789aad84b07142fe382/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/be5457bb71c44b57b6081ed716872ec2/AA5193DEA72C4771922D0D5F5116FCCA.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列关于线形动物的说法错误的是( )<br>A.身体细长,呈圆柱形 B.体表有角质层<br>C.有口有肛门 D.线形动物都是寄生的<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/149943382e684448874e7eef192db3f9/D9A7E0722DAB5479A60928D5B8864BC6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/a1312b3d8e2e4c4fba26927ba818843b/0E963BA0CF5A464F23CB46F64E51DA7A.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>秀丽隐杆线虫是科学研究常用的一种模式动物,对其相关研究曾多次获得诺贝尔奖。下列动物与其属于同一类群的是( )<br>A.涡虫 B.血吸虫 C.蛔虫 D.猪肉绦虫<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/292fd1721ef0463b91203e2b70ceb7a5/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/7c62afd8327345d1bd3615f59d81841d/50C390B74C5BB33C0970AE1A4B7A561D.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>各个类群的动物具有不同的特征,下列哪项是环节动物的特征( )<br>A.身体呈辐射对称 B.体表有角质层<br>C.靠刚毛或疣足辅助运动 D.身体表面有外套膜<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/3d7a7e8dc4cd4f22b939228f9ae402e9/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/b7c96e11d4394c90a8cce5e22ceb6c8c/C0A3F432B0000B53F9FD7840B96172D0.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>以下动物中,具有“身体呈圆筒形,由许多彼此相似的体节组成;靠刚毛或疣足辅助运动”这种特征的动物是( )<br>①蛔虫②蚯蚓③秀丽隐杆线虫④蛲虫⑤蛭⑥沙蚕A.①②⑥ B.②⑤⑥ C.①②③ D.①③④<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/ce090a8b1d0b4bad9335cbfb7cf03da9/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/30eefa31b2d345de95c24be0470554a3/55B577E2D4624E4E44BC89E6324E2447.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>蝗虫和蜈蚣都属于节肢动物的主要依据是( )<br>A.身体分为头、胸、腹三部分<br>B.身体呈两侧对称,运动器官发达<br>C.体表有外骨骼,身体和附肢都分节<br>D.身体由许多体节组成,感觉器官发达<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/e9707e3e1cec4c6a82e3b6e5cc3f01a6/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/97c93801c48d405c846a8fa540780a9f/9CE685407F1A338FF578EB61611B1355.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>下列节肢动物中,属于昆虫的是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2020/8/24/09D692B09F631CD981846C2F6FFD968E.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2020/8/24/3A77C4EB329FD51A2F8B805745A528D8.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2020/8/24/36CFE4E7243691DC046351FE96220969.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2020/8/24/C7FF080AF373FE4D47E02334F674DC70.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/14f7c3077e1c4932b72426c644634eb2/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/c49bc84f443a4bfe99c81c766bb3db2b/662CE754DC83FB61DE0A85E59B8B5838.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列各选项中都属于鱼类适应水中生活特点的是( )<br>①身体呈流线型②用鳃呼吸③身体内有由脊椎骨组成的脊柱④鳍能够协助游泳⑤体表有黏液A.①②③④ B.①③④⑤ C.①②④⑤ D.②③④⑤<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/822baa59b2c84a219c615f81c9118fa9/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/d32e44050abd4c0eb34237a62326287e/D8191458ED02E1B09D4972BD0F75CAAF.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>关于两栖动物的说法错误的是( )<br>A.两栖动物是从水生过渡到陆生的脊椎动物<br>B.只能在陆地上生活不能在水中生活的动物是两栖动物<br>C.两栖动物的生殖和发育离不开水<br>D.蝾螈、大鲵和蟾蜍都是两栖动物<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/b0a4bf4d4f47465baa028265aacbcca0/4EF59C4461E28F3B3B09551EB8B9AC3F.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/028dfa05d4054a31b8537d4118ac5f4f/691A937713D84CC8561750363FD47525.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>扬子鳄是我国特有的一级保护动物,下列关于其特征的叙述,错误的是( )<br>A.用皮肤和肺呼吸 B.卵表面有坚韧的卵壳<br>C.体表覆盖角质鳞片 D.卵在陆地上发育成幼鳄<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/848195ad502f4b2f967b78e52ce263de/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/de8434a7f32e4fafa2a94a917b6874b6/3B43974B12A0875C18887C4F65D50821.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>下列不属于鸟类气囊作用的是( )<br>A.辅助呼吸 B.加快消化速度<br>C.散热降温 D.减小飞行时内脏之间的摩擦<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/dc72691c634a4037a57978090a5ddbdc/4EF59C4461E28F3B3B09551EB8B9AC3F.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/e2593c26e09c412088885f65fc94c3db/E103A2C1735E1F9468842D1098E6464B.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“胎生,哺乳”的叙述,不正确的是( )<br>A.胎生,哺乳大大降低了幼仔的死亡率<br>B.绝大多数哺乳动物以胎生的方式繁殖后代<br>C.胎生提高了哺乳动物的产仔率<br>D.哺乳为幼仔成长提供优越的营养条件<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/598694a52d154b97b26ad9404b69c234/D7C9A679F3C72D4F1064B7D0A0FD4AD8.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/a0613a608a324cbb881ff0630ca88585/DE8E88E6F38936C38CB8E1F0FB08BC5A.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>以下两项都属于先天性行为的是( )<br>A.蚯蚓走迷宫、猫抓老鼠<br>B.蜜蜂筑巢、狗沿途撒尿<br>C.大山雀喝牛奶、萤火虫发光<br>D.孔雀开屏、黑猩猩钓取食物<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/d954eacb80a74ad28583fcf1e0f7761e/4EF59C4461E28F3B3B09551EB8B9AC3F.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/013936ae85fb4bf7af89a6e3084af7e0/C4AF3E2CB0937C9A7183C5FA47222A8F.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>楚汉时期,汉王刘帮派谋士在项王必经之地“召集”蚂蚁,写出“项王死于此地”几个字,项目以此认为是天意安排,遂拨剑自戕,此事件中,汉王谋士主要利用了蚂蚁的什么行为( )<br>A.社会行为 B.生殖行为 C.学习行为 D.防御行为<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/d001b059553f4b009779de4600cb7cef/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/0047c609b36c49f581fa644bde0aa198/E3BD77234B2FD6C1C79B75D47661FCA9.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>小林同学仔细观察山地野猴和动物园的猴子,发现了猴子一系列有趣的行为。这些行为属于动物先天性行为的是( )<br>A.野猴看到陌生人时逃走<br>B.动物园的猴子向人“行礼”<br>C.野猴爬到树顶摘桃子<br>D.动物园的小猴子向游客索要桃子<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/5fbeb2d731a7411e917160b6c90b5620/D7C9A679F3C72D4F1064B7D0A0FD4AD8.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/e2ee9ee16cbf46ee9c7677b88ac26bec/AD670E41259500DDC39D3654FF09B449.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>“留连戏蝶时时舞,自在娇莺恰恰啼。”在诗人杜甫的笔下,动物使大自然充满生机。下列事例中能体现动物在生物圈中的作用的是( )<br>①蚂蚁的分工合作②蜜蜂采蜜③青蛙捕捉害虫④苍耳的果实挂在动物皮毛上A.②③④ B.①③④ C.①②④ D.①②③<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/29e648cbeec64fafbc59700949e94acb/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/e36d139453184a4f9b257a0e047a2b7d/279D78D1FEE5DB77755A24BE183E1DA1.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>下图是兔和狼的牙齿结构示意图<br>请回答下列问题<br>:<br><img src="https://picture2.zhihuicn.com/testImage/2/2019/9/20/DFB84412A16C791155CB906F01703C56.png"><br>1.图是兔的牙齿,判断的理由是:兔的牙齿有[]和[]的分化,没有,这是与吃植物性食物相适应的。<br>2.图是狼的牙齿,判断的理由是:[]尖锐锋利,适于,这是与的生活习性相适应的。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/92bf1e0b260d4ac4b788b65c1dea3fc1/58015F64842602039721788D90C60474.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/9318347f4398455ca2b7e5a8281ef0fd/054DF660F7F8E97E65FAF958A1947D12.png"><br><br>
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