甘肃省武威市2018-2019学年七年级上学期期末生物试卷
※题型：单选题※知识点：单选题※试题难度：较易<br>“日出江花红似火,春来江水绿如蓝”使江水如此美丽的是那类植物( )<br>A.藻类植物 B.苔藓植物 C.种植植物 D.蕨类植物<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/a22f7f91c9b54a6ba753de42b864e16a/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/2f5d155522554125a30d84761db44227/9BCED4B6EDA763B09D85DAE785A1A416.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>与桃树相比,松树种子最主要的不同是( )<br>A.果实内有种子 B.没果皮包裹,种子裸露在外<br>C.胚珠外有子房壁 D.球果是由果皮和种子组成<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/7931d39c7dca46df9ad30023cfa012a0/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/cea213f06bf5425d87583bcb62c3ab41/E4CB92FAD5F9E1463009C86BFFA03817.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>“春种一粒粟,秋收万颗籽”,一棵参天大树也是由一颗种子发育来的,其实是因为种子中包含有发育成一株完整植物的( )<br>A.营养物质 B.水分 C.无机盐 D.胚<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/1921b3fb33c44d8cb58f0ed258426837/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/c46c4669d2e141408169f7af401da922/26E33FD0E4F445D12E13A651DA265A2F.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>下列哪一类植物没有根、茎和叶的分化( )<br>A.藻类植物 B.苔藓植物 C.蕨类植物 D.种子植物<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/d511cbdc7d474bf6950214686af8ac53/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/5406df8603ba467a9dfa9e5a2f9a96b8/FF853B594E33F8EA65F9509C78188036.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>玉米种子和菜豆种子相同之处是( )<br>A.营养物质贮存在子叶里 B.都有胚乳<br>C.都有胚和种皮 D.营养物质贮藏在胚乳里<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/a39facab280442b1b3b8f014eab2aa6c/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/273de81fbdb7419db88541cdc0463ffe/45F25FD3115FD558974AB38B64A21B39.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>木本植物的茎能逐年增粗的原因是具有( )<br>A.形成层 B.韧皮纤维 C.木质部 D.树皮<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/e020742ca4db42ce84844d1620812cd2/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/87d77455802e4fd089b501579dcfd028/3F5A4C9B1BED0F5A779195CA74C54EFB.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>贮藏蔬菜、水果要保持低温,这是因为( )<br>A.温度低,减少细菌病害<br>B.温度低,呼吸作用弱,有机物消耗少<br>C.温度低,促进光合作用积累<br>D.温度低,蒸腾作用弱<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/2851293843634d7aade7b9d2a93c43c0/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/2493315c15374f7d82e8b95a5394f28d/5487B814659C26105FA1C3E5A1702938.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>如果连续出现阴雨天,大棚蔬菜的产量会下降.这主要是因为阴雨天不利于大棚蔬菜的( )<br>A.光合作用 B.呼吸作用 C.蒸腾作用 D.花的传粉<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/97aeecaf79fa4942a3edb627e1b8c503/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/1016289339b94bab93668a7b2dedef89/FCDF9C6022274F9107AB17753FC28CE9.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>吸收水和无机盐的主要部位是( )<br>A.根冠 B.分生区 C.伸长区 D.成熟区<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/3abb1f405aba450da0d024b9d641d78d/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/f71c09d130c6471b94b5de1a5cd26d36/6D605BE2FB07A0B8A7465E1C153C0BB1.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>我们吃花生,吃的是( )<br>A.细胞 B.组织 C.器官 D.植物体<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/911e897aa77943d49d8046269b3b4b12/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/f3f05c9e6bed4f5a9a308f419af2eb4b/A6EEC569338E5C081861A5E60801A3C5.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>桂圆是泸州名优特产水果。一棵茂盛的桂圆树要结出好吃的桂圆,要经过等复杂的过程()<br>A.开花→受精→传粉→果实成熟<br>B.开花→传粉→受精→果实成熟<br>C.受精→开花→传粉→果实成熟<br>D.传粉→受精→开花→果实成熟<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/7c001a827ff34ea892261030c6869dd9/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/5c2541a126e143de941f3e3e0343a5bd/55874E976BB19FA9677A027AF1176753.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>在植树时,常在阴天或傍晚进行移植,并去掉部分枝叶,是为了( )<br>A.降低光合作用 B.降低蒸腾作用<br>C.减少水分吸收 D.增加水分吸收<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/79ada2a4447f4f2fb629b95dfc4d387e/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/bba478ddf28e4e32b3f4cd375ecba65d/2D170CC5B975DE89FD2FD1F8E394CF31.png"><br><br>※题型：多选题※知识点：多选题※试题难度：中等<br>细胞能够从周围环境中吸收营养物质而持续生长。。<br>(判断对错)<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/2310ebd787554bd3b7eda28ec9b1bb45/1BF6542C45D8F9CAF60E902F8E776A20.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/0d42078fa65c4e6ab83204de28099a99/C41A8F7E76C28AB093771AE4CB068A53.png"><br><br>※题型：判断题※知识点：判断题※试题难度：中等<br>“藕断丝连”是常见的现象,这里的“丝”来自植物的营养组织<br>.<br>(判断对错)<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/db496d923bf0495e825c490877c78d74/1BF6542C45D8F9CAF60E902F8E776A20.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/3da127c02f2444c08744ca4a1731f281/5AFDD50E36E25897E0DBB196A80FB6BE.png"><br><br>※题型：判断题※知识点：判断题※试题难度：中等<br>根生长是指细胞数量的增多,这是通过细胞分裂来实现的<br>.<br>(判断对错)<br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/cbe81ddbdeb143aba0fd1ffd3e9b8b7f/1BF6542C45D8F9CAF60E902F8E776A20.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/c6e3c283444146b394f82bb267c210eb/58E95EAE7322815A696939FE9205860E.png"><br><br>※题型：读图填空题※知识点：读图填空题※试题难度：较易<br>如图为某种树叶的外形图,<br>请据图<br>及箭头所示,回答下列问题:<br><img src="https://picture2.zhihuicn.com/testImage/2/2020/5/14/2F6C54697C2F59E0659A25048B9E76CE.png"><br>1.该叶片的结构包括, 和三部分。<br>2.若此图为呼吸作用示意图,则原料①是,产物②是。<br>3.物质①②进出叶片的通道是。<br>4.物质③通过(填结构名称)进入叶片内部。<br>5.该叶片除了能进行光合作用、呼吸作用外,还能进行作用。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/fabedd6077d14758b34b467c73c5d063/3755C55550288D3C6D2328CB1F86BA5C.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/3ddda43a046f41ff82b9cebf3017f303/75C786D0E2A8767FEE158F2AB680702D.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>图是某生态系统图解,<br>请据图<br>回答:<br><img src="https://picture2.zhihuicn.com/testImage/2/2020/5/14/19829FB97CF09E748A1E5408C6DC0FC9.png"><br>1.图中共有条食物链,写出其中最长的一条是。<br>2.该生态系统中的生产者是。<br>3.图中生态系统组成成分还缺少和。<br>4.如果兔子的数量大量减少,那么短期内数量增加的生物是,短期内减少的生物是。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/c6dce848e38a44e1a16cbcb40edd6357/2664CFFD9A7123ACE1EEBB49FCB10D38.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/34da1a23d4464e439e887f58021719b0/73EF6012DE34ACCE30386E699D995554.png"><br><br>
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