2020-2021学年八年级下册生物冀少版同步课时作业（3）人的生殖和胚胎发育
※题型：单选题※知识点：单选题※试题难度：中等<br>男性生殖系统中,能产生精子和分泌雄性激素的器官是( )<br>A.前列腺 B.尿道 C.睾丸 D.附睾<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/caf0cc330bb748c784b50fe6a9078159/D7C9A679F3C72D4F1064B7D0A0FD4AD8.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/cc67e557c351444fa6d657175cedccfa/9BEC3170445E83C658567718BF6AE59A.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列器官中,属于人体内主要的生殖器官的是( )<br>A.卵巢与睾丸 B.输卵管与输精管<br>C.子宫与输卵管 D.子宫与前列腺<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/302666eb414948ac9068b832007b7a6c/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br>略<br>※题型：单选题※知识点：单选题※试题难度：中等<br>全面二孩政策实施以来,想要二孩的爸爸们纷纷远离烟草。因为烟草中的尼古丁能杀伤大量精子,降低受孕率。产生精子的器官是下图中的( )<img src="https://picture2.zhihuicn.com/testImage/2/2019/4/23/D7CB84D29432F16A4673AFBABA4B4BB4.png"><br>A.① B.② C.③ D.④<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/52f6954e23ea42a3ba5ba91140902181/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/46fba414234443baa6217187b40e03de/22340F5848FF2A5AA970A5D1783DE14E.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>产生卵子、形成受精卵及胚胎发育的场所分别是( )<br>A.卵巢、阴道、子宫 B.输卵管、子宫、卵巢<br>C.卵巢、输卵管、子宫 D.卵巢、子宫、子宫<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/c56de31c36bb49a6b558051075038873/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/bf8c941c2a7f443887b0d83c70e48405/C34AD36638D322E1F2EC98E1ECBA9FB0.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下图为女性生殖系统示意图,胎儿发育的场所是( )<img src="https://picture2.zhihuicn.com/testImage/2/2020/8/3/E9AEA2A1795E067ADF2D6F63C1C376A5.png"><br>A.① B.② C.③ D.④<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/5a10896637a441a99991a9a991f49351/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/dd1531275de543c98095af3ce5154905/53BF7EDCE21DB9056248E20902A857FA.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下图表示的生理过程是( )<img src="https://picture2.zhihuicn.com/testImage/2/2020/1/8/6244D94B5B3339AF18AAD1F1E08B4A25.png"><br>A.精子的形成过程<br>B.卵子的形成过程<br>C.卵子吞噬精子的过程<br>D.精子与卵子结合的受精过程<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/d6327cfdede64f19a6b7340486b58bf0/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/d1dc74deec954b448abb37f3c56c057b/E8D95AD6D99D95DD7848E092D975FFF1.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>人类新生命的孕育和诞生主要通过生殖系统完成。下列叙述正确的是( )<img src="https://picture2.zhihuicn.com/testImage/2/2020/12/10/CF820F859104636D0449B21F832E27A4.png"><br>A.胎盘和脐带两个结构中,只有胎盘是母体与胎儿进行物质交换的器官<br>B.精子在③中与卵细胞结合形成受精卵<br>C.怀孕是指受精卵植入④的过程<br>D.胎儿在母体内可以通过吸气获得外界空气中的氧气<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/192a68d7819142d0b2f7796466f33945/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/414e5ad8ac724c91858a2288f09f528b/DD57EBB0139A617695166681D374988A.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>人类新生命的孕育和诞生主要通过生殖系统完成,下列叙述正确的是( )<img src="https://picture2.zhihuicn.com/testImage/2/2020/11/26/79ED7DF2C7FF48B200850079B0C04319.png"><br>A.①是胚胎发育的场所<br>B.②是输送卵细胞的通道<br>C.④是精子与卵细胞结合的部位<br>D.⑤是分泌雌性激素的器官<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/de90770a2c5144189ba0c2a128994a8a/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/3504a226e6e244549501960222defe3a/65FC48EE27547DE5D5F69A4E8CEDE31D.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>如图是人体生殖发育过程示意图,正确的是( )<imgA.a是睾丸,b是子宫<br>B.①过程发生在卵巢<br>C.②是指受精卵植入子宫内膜的过程<br>D.新生命的起点是受精卵<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/8ef20b0110e84e8d81953a3d85460ad7/D9A7E0722DAB5479A60928D5B8864BC6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/dc29119953174f5f98877c40d5253e81/8C1985332E79C0FD092ED66D8AE36E23.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>小明对自己怎么来到这个世界感到很困惑,请你参照下图,利用所学知识给他解惑.([]内填序号,横线上填文字,以下类同.)<br><img src="https://picture2.zhihuicn.com/testImage/2/2019/7/23/9DC1B2895CD2673E065F49ADF72902BE.png"><br>1.小明新生命的起点是图1中的________,产生A的器官是图二中________,A和B结合的场所是________. <br>2.图1中的C不断进行细胞________,逐渐发育成胚胎泡.胚泡缓慢移动到图2中的________上,并附着在此,这就是怀孕的开始. <br>3.胎儿通过图3中的胎盘从母体中获得所需要的营养物质和氧,胎儿产生的二氧化碳等废物,也通过上述器官经母体排出.怀孕到第40周是,发育成熟的胎儿和上述器官从母体的阴道中产出,这个过程叫做________. <br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/298c40cc9e844866abb4673670fa6b2c/0222AC70ACBBEF8D49F5DD99C58FBFC6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/b3d3faa2b90f4ae0937cba3f9e3695aa/85BB4C23C7A6DB59FDC46B27CC3B775B.png"><br><br>
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