2020-2021学年生物苏科版七年级下册随堂检测（10）鸟类
※题型：单选题※知识点：单选题※试题难度：中等<br>动物的运动依赖一定的身体结构。鸟类特有的运动器官是( )<br>A.足 B.翼 C.尾 D.胸大肌<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/b2a9903853de4f6caadfc56c5865c1c4/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/ba4c120a4c334a8aac369120bf7496f5/1E2AF2808467EC5FA86206F094CC8E2A.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>尖尾雨燕飞行速度最快时可达352.5千米/小时,堪称飞得最快的鸟。下列特征与雨燕飞行时减轻体重无关的是( )<br>A.长骨中空 B.有龙骨突 C.骨薄而轻 D.直肠短<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/147296bc01704bcdb4c87c1d3f48a7a9/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/afeaf346da4744b782c8d1352af55f5f/CD57FE5362474F392CD7A97F5E686272.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>鸟飞行时,牵动两翼完成飞行动作,其动力主要来自( )<br>A.四肢 B.胸骨 C.胸肌 D.羽毛<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/179b513835164b6384007a28a91c356b/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/53df422023c5482fa2e86d5c57b67bde/D978B463DDDB2FD458F3E8053BEC23C0.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>一只家雀从0℃环境进入20℃环境时,正常情况下其体温( )<br>A.降低 B.升高 C.基本不变 D.无法确定<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/1c6804751a774d11bcb665569a09edf2/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/d187e601a5e040a390c3de6b644d9748/7915833F4935BD1BF9AB4722337599C9.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>鸟类是人类的好朋友,下列关于鸟类的说法中,不正确的是( )<br>A.能捕食害虫 B.具有观赏价值<br>C.能提供肉蛋奶 D.能捕食鼠类<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/d7a2e03d263c4d5b889d55eec65428ea/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/4d79e20df2f642fdaa5bd43549b38492/AAA81708D5D357FCF39143F1D0EC51C2.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>请根据鸟的形态结构示意图回答。<br><img src="https://picture2.zhihuicn.com/testImage/2/2020/10/12/EC8096F443B589EF9D67699543FD519C.png"><br>1.鸟有许多适于飞行的特点:身体呈型,可减少飞行中空气的阻力;体表覆;前肢变成;肌发达,可牵动两翼完成飞行动作。<br>2.鸟的呼吸作用旺盛,有辅助呼吸。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/d6305522a8ad4fafb6fc99d515b0cccb/9499A4200A12CDE073F17E4F68BAEEC8.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/0f07d96c50d849d9b6d9db8522679286/08DA2D838CC4082B8E05015D267CE207.png"><br><br>
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