天津市滨海新区2019-2020学年八年级上学期第一次月考生物试卷
※题型：单选题※知识点：单选题※试题难度：较易<br>水螅排出食物残渣,靠的是( )<br>A.肛门 B.口 C.胞肛 D.触手<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/cc4e6599e1394092b0bf59d32c9cad03/4EF59C4461E28F3B3B09551EB8B9AC3F.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/9888dbe3c43d45c8a5f1e32c45edef07/25045D65DED341EEF35C5C042305722C.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>下列哪项不是扁形动物的主要特征( )<br>A.身体背腹扁平 B.身体成两侧对称<br>C.有口无肛门 D.体表有刺细胞<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/77d6515adb9f4a5db472f05a6828db13/D9A7E0722DAB5479A60928D5B8864BC6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/e432d7553b2544f2bdcb2e7ede9f873c/9F5801B389F6057119221C384711BD4F.png"><br><br>※题型：单选题※知识点：单选题※试题难度：容易<br>蚯蚓的体壁总是湿润的,这有利于蚯蚓( )<br>A.在土壤中运动 B.保持水分<br>C.吸收营养 D.完成呼吸<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2013/2a9839f6396c4c89bd48c3e758d50021/D9A7E0722DAB5479A60928D5B8864BC6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2013/bf55356507e143578b1462023e1a3c9b/B33D0AAE31CC36EFB7132640FBB94BBC.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>下列属于环节动物的是( )<br>A.蛔虫 B.水蛭 C.螨虫 D.涡虫<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/55c3a1f73d294882897a81dfb561a09e/4EF59C4461E28F3B3B09551EB8B9AC3F.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/c38a488f3d3a4b3482912fe3474066b1/4A6510931AAF8CF37683E7B93025B0EB.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>节肢动物的共同特征是( )<br>A.体表有外骨骼<br>B.身体分为头、胸、腹三部分<br>C.头部有触角、口器、单眼、复眼等取食和感觉器官<br>D.气管呼吸<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/62826f68ffcb4338b81835e517a17207/DA50F910BECBBBA4AAB35D7A1AB24524.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/85872ec0bcef4d15ba433dd3955bd3e3/976D5C72C2B6177EBE3E9E16D7EB93CE.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>中药“蝉蜕”是蝉褪下的( )<br>A.外骨骼 B.外套膜 C.鳞片 D.皮肤<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/b3a48abe3ad54887a4e885eccb3e4c24/DA50F910BECBBBA4AAB35D7A1AB24524.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/ce6edec353a04bc9800cff1fb1dcb580/CDC571719E2971B293FA3F06D7FC8E8B.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>我国有优良的淡水鱼品种,著名的“四大家鱼”是指( )<br>A.草鱼、鲤鱼、鲫鱼、青鱼<br>B.青鱼、草鱼、鲢鱼、鳙鱼<br>C.鳙鱼、鲫鱼、黑鱼、草鱼<br>D.鲤鱼、青鱼、梭鱼、鲢鱼<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/d7d640351dd143059e3cf2f2ce37db01/4EF59C4461E28F3B3B09551EB8B9AC3F.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/2f3a849cb3b349a788a7213a07b5fac7/65862488E86592273FB20D433C29EAD8.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>鲫鱼在水中口和鳃盖后缘不停的交替开闭,其主要作用是( )<br>A.调节比重 B.平衡身体 C.进行呼吸 D.防御敌害<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2012/feaa88ba0ef44f218daf6cefea056d04/D7C9A679F3C72D4F1064B7D0A0FD4AD8.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2012/f55642517905441eaa7e8ffe94fc3f12/AE77E4EB4CB899A15E84639659B3FA2E.png"><br><br>※题型：单选题※知识点：单选题※试题难度：容易<br>冬眠是青蛙对冬季不良外界刺激的适应,冬眠的成蛙进行呼吸的主要器官是( )<br>A.肺 B.鳃 C.皮肤 D.肺和皮肤<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2013/ba4c98fd8794484b8911e260009a82c7/D7C9A679F3C72D4F1064B7D0A0FD4AD8.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2013/b9f7dd0118984a048b03cbc8ead348b0/9458DA113CA0E0211AA611580BC3863C.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>下列有关线形动物的叙述正确的是( )<br>A.蛔虫属于线形动物,雌虫比雄虫略短<br>B.蛔虫身体前端有口,后端有肛门<br>C.线形动物体表有角质层,生活方式都属于寄生<br>D.血吸虫身体细长,属于线形动物<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/32dd379c5e844729a218ba3194352887/4EF59C4461E28F3B3B09551EB8B9AC3F.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/0bcc375299284b699b46a98d90d398c4/EC8E2B0DF7161BE14C71976703DA45DB.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>下列动物中,不是胎生的是( )<br>A.企鹅 B.猎豹 C.蝙蝠 D.猕猴<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/3e06cb48afd54017a67aa927699adc2c/DA50F910BECBBBA4AAB35D7A1AB24524.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/585d69c7a95c4856b95fcfbd1c7c66bb/C29AD8936719DA6B34C14ADEC1356D12.png"><br><br>※题型：单选题※知识点：单选题※试题难度：容易<br>在生物分类上,人属于哺乳动物。主要依据是( )<br>A.人用肺呼吸 B.人具有胎生、哺乳的特征<br>C.人体温恒定 D.人能够直立行走<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2014/51d06706e3614f3c81b4bde5581b52c3/4EF59C4461E28F3B3B09551EB8B9AC3F.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2014/88d4dd5d89d04ac1a681fb9215650e45/31DB56BADAFCB854E7AB012395808886.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>下列动物中体温恒定的一组是( )<br>A.家兔和青蛙 B.鸟和鱼 C.麻雀和狮子 D.青蛙和蛇<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2012/e6592291bbcd4de1a8e10ac0e0a83a42/D7C9A679F3C72D4F1064B7D0A0FD4AD8.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2012/496ad33b21d04e75ba1ca8f712beacf2/C5784272AEB68BD139CC3DA369B8CA0C.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>赛龙舟是端午节的传统习俗,当队员奋力划桨时,关节和骨骼肌作用分别是( )<br>A.支点、杠杆 B.杠杆、动力 C.动力、支点 D.支点、动力<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/c16aeaf2a5e043fb864f8faf52ee483d/D9A7E0722DAB5479A60928D5B8864BC6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/7958f457c8a9417d8ea37293215b91ac/91A45EE7EB4B50795537A3FBC3BF1C9B.png"><br><br>※题型：连线题※知识点：连线题※试题难度：较易<br>请将下列动物与其类别连线A蚯蚓 a哺乳动物B狐狸 b环节动物C猫头鹰 c爬行动物D蜥蜴 d鸟类<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/86b8efd58b0e4f9e860f65b0ebee6c2d/52E39313623EE7DC6612792D273C28DE.png"><br>解析<br>略<br>※题型：读图填空题※知识点：读图填空题※试题难度：中等<br>根据下图关节结构示意图回答:<img <br>1.填写图中各部分结构名称:①_____②_____③_____④_____⑤_____.<br>2.剖开关节后,______表面非常光滑.<br>3.使关节牢固的结构有______和______.<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/0b39da94b5ad45258b1869e25c11c9c5/AC96B520A33CB05E20BF45DDB1180289.png"><br>解析<br>略<br>※题型：读图填空题※知识点：读图填空题※试题难度：中等<br>从图形、数据中提取各种“信息”,完成下列问题。<img <br>1.一块骨骼肌由两部分组成:①是______,②是______。<br>2.伸肘时肱二头肌处于______状态,[③]_______处于_____状态。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2013/edb26756735c41fc93fda6f6ffbaa4e3/398BC0FEE3491EDF7BE9652C71246904.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2013/231619031789417cac88d3b817d418df/A7B9C52672ECA2A3CFF8F28A58A171E6.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>下图为水螅的纵切面示意图,请据图回答问题:<img <br>1.水螅进食时,食物由【1】口进入体内,然后食物在【4】______消化,【4】是由【5】______细胞围成的空腔。<br>2.【6】______上有刺细胞,刺细胞在【2】______分布最多。<br>3.水螅的生殖方式是出芽生殖,【3】_______长成小水螅后,就会脱离母体,独立生活。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/3380dc6f8f954fa69647a206962932d0/8D1CA1765913990BEBF30223BEA0EE43.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/c779b3c5a85b4ddf8bea2c1b739649e1/8A1E6B1CC885CCF2E25F2950710D9B31.png"><br><br>
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