广东省深圳市2018-2019学年七年级上学期期中生物试卷
※题型：单选题※知识点：单选题※试题难度：较易<br>属于生物基本特征的是( )<br>A.生物都能快速运动 B.生物都是由细胞构成的<br>C.生物都能进行光合作用 D.生物都能生长和繁殖<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/3c697fd5279b422c83857068e15e6473/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/9ce83e40af0a49e8953cbeac00974eb1/6A79E7DA2BBF0511A624EA9C394E9B71.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>下列不属于生物的是( )<br>A.蘑菇 B.珊瑚 C.珊瑚虫 D.海带<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/a0aeeb5976b444cc88d8729e20acc138/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/979c1b1abb2c40e6a90003727ae3c7b1/C7EAE02B8BDA74CC8C8E5B2DB575FFC4.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>取显微镜的正确方法是( )<br>A.一手握住镜臂,一手托住镜座<br>B.左右任一只手握住镜臂<br>C.右手握镜筒,左手托镜座<br>D.双手托住镜座<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/3ca8db5f78bd438a964877ee96eeeb09/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/fde8dda3b30f415a8ecd005559a54ab3/DADCE13C3847EB8BAF08C29056C6BF8A.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>判断视野中看到的是气泡还是细胞,下面方法不正确的是( )<br>A.在显微镜下气泡看起来中间亮,边缘较宽且较黑<br>B.用镊子轻压盖玻片,气泡会变形或移动,而细胞则不会<br>C.细胞较大而气泡较小<br>D.如果用碘液染过色,细胞内被染上了色,结构清晰;而气泡中看不到结构<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/33b79cc2f4f849edafc6037fe2b57eff/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/117ac7bd5b9e493cb93183c176e8c2d9/1512779A5813D0C1983DB057F09F7037.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>下列不属于生态系统的是( )<br>A.一片农田 B.一块草地 C.一片森林 D.一群羊<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/e08062b641384a40b5a5512e7517c068/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/2b0a75ba14794a19a787b4be64beaf7c/C6CC412BEDE2C0A3F281FF3ADE02913E.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>图是制作临时装片的几个步骤,正确的操作顺序是( )<img src="https://picture2.zhihuicn.com/testImage/2/2020/5/14/A3F0D69E46654842BB489F14975C6A05.png"><br>A.③④①② B.③④②① C.④③②① D.④③①②<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/04dc324854dc4b47ae10b7a5229c8edc/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/c1ab93b2cda140fe98f352792fe701b9/E973086273655CCF2B8BCC2D4E480469.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>地球上最大的生态系统是( )<br>A.海洋生态系统 B.森林生态系统<br>C.农田生态系统 D.生物圈<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/6dee55889be54effb72b139c405342f7/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/d4e05fc0dfb944b8a9545bd922eeecd8/7529897A1F4A2AABF2E157CBF93A8EE4.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>西瓜之所以甘甜可口,主要是因为西瓜的什么结构中含有大量的糖分( )<br>A.细胞壁 B.细胞膜 C.液泡 D.细胞核<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/faf08c8a40ea408bac29e8fc021db68b/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/19c92346dfaf48d9b946ff91022efa76/235F5B8BAE5D3796AF03107611E668A0.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>在玻片上有一“9b”字母,则在显微镜视野中看到的应该是( )<br>A.9b B.q6 C.6q D.b9<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/347f54f5118d4de5938981e760846282/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/b9198c44472748699a97aeb3caa5b730/D4508BB08B4E4C5C5FAB4DFF37FFBC35.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>下列食物链中,正确的是( )<br>A.阳光→草→兔→狼<br>B.草→昆虫→青蛙→蛇→鹰<br>C.鹰→蛇→蛙→昆虫→草<br>D.草→蝗虫→细菌、真菌<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/f483fdf1ebe34716b5e784122a8547cb/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/88c580e9f5f5495ba5351cee2e68aeb4/836768B1082D7EA52350D783CBCE0FBF.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>生物既能适应环境,又能影响环境.下列各项能说明生物影响环境的是( )<br>A.夏天大雨过后,蚯蚓常常会爬出地面<br>B.大树底下好乘凉<br>C.鸟类迁徙<br>D.沙漠中的仙人掌,叶退化成刺<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/66206aff9e73456b8b87f97b3532cba9/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/f8f388a96b6044d3a52f8a25772df9f4/BF20489C528D80FE5EEC3B08D4EE1A14.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>遗传信息的载体DNA在染色体上,含有染色体的细胞结构是( )<br>A.细胞膜 B.细胞质 C.细胞核 D.液泡<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/9ef682065cc44135b2579770c1e3c20b/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/63938743aeec4b1b9af4aa40f06bb114/73B382BF5968A641E80966E78D60C400.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>“人间四月芳菲尽,山寺桃花始盛开”这句诗描写的是( )对植物生长的影响.A.阳光 B.湿度 C.温度 D.水分<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/a6faea5c516641649d54572e3c45dbdd/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/2505ec13f2024a1b84df0ab08cad4623/36C0698B63E05C1CDC3E22FD3A77918E.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>用显微镜观察生物体的基本结构,所要观察的生物材料必须是( )<br>A.形态规则的 B.薄而透明的 C.干净的 D.经过染色的<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/2284830d176640a2891ab248f19294fc/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/f01ce967892649cdb430df2a61bbf902/6F94CF930ED2339112CF5B75C6C7C24A.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>在光学显微镜下不易观察到的细胞结构是( )<br>A.细胞核 B.细胞壁 C.细胞膜 D.细胞质<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/1f2305a7956d449286bf0cd56b8b7b3c/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/95d45061ffa04a5e9d5385c0f10f94dd/390899ACAB79FECBB26ADB459C18F6BA.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>“螳螂捕蝉,黄雀在后”所描写的动物之间的关系( )<br>A.合作 B.捕食 C.竞争 D.寄生<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/5d98bb0cd42f4fa28628c46d7b2b2323/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/c8b0ff9b4cda435fac11ce15d82c9276/202026D2019ACF62F3394E8770E68BC5.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>“落红不是无情物,化作春泥更护花”,在落红化作春泥的过程中起主要作用的是( )<br>A.生产者 B.消费者 C.分解者 D.ABC都是<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/e37aa13ee12f4e4d809ade47971b1885/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/2868ca28cd9844c8b4674e139f907a77/64C7E014BA8F0E5E54776146761713E6.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>显微镜是初中生物学学习中使用的一种精密放大仪器。在操作显微镜时,如果物像不够清晰,一般应调节( )<br>A.反光镜 B.遮光器 C.粗准焦螺旋 D.细准焦螺旋<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/2cc14bd265144e1886328df59a61580f/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/d9086c5b616948d0a84fe8757ca75b12/63B0FE1CE167CC379D18314849C18944.png"><br><br>※题型：多选题※知识点：多选题※试题难度：中等<br>用显微镜观察植物细胞装片的同一部位。若想在视野中所看到的细胞数目最多,应该选择的组合是;若想在视野中所看到的细胞最大,应该选择的组合是( )<br>A.目镜10X,物镜10X B.目镜10X,物镜20X<br>C.目镜10X,物镜40X D.目镜10X,物镜4X<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/53af8a503e6c4ccfae51793dfc955d0b/BDFF15D8D941257DA32E80A18C28199A.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/1783b21caf1f4352bfd34717ae6ad84b/82A7599DFAE988F64B0D4643FA4FC917.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列各项中,属于生态系统生产者的是( )<br>A.蘑菇 B.海带 C.真菌 D.工人<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/f83dce96f80e458985ea8fd76bed5b98/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/03bd6ac77dcb4db1921499625edbc9b8/60DB8DE5D4A38C8F6448EAA1AB07BF4D.png"><br><br>※题型：多选题※知识点：多选题※试题难度：中等<br>下列属于生物的是( )<br>A.弹钢琴的机器人 B.慢慢长大的钟乳石<br>C.馒头上长出的“毛毛” D.真菌<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/2292b48af7b24a6f85183e6c2520c0e0/BDFF15D8D941257DA32E80A18C28199A.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/1172a1220c60429989fe8b75279f7a03/62C60F288518DEA8D108D05947627766.png"><br><br>※题型：多选题※知识点：多选题※试题难度：中等<br>下列属于竞争关系的是( )<br>A.人和肚子里的蛔虫<br>B.同一草原上的兔子和羊<br>C.同一稻田里的水稻和杂草<br>D.同一农田里的青蛙和昆虫<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/2948ee4df62e4b6ea64a3663b26bd371/DED0EF50CCECB5AC708154DA3F19061B.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/546dd4c74d904192b8f8d4124ce0d6fd/E6F34A08D71B9D00E92AAB3C9AD7CD15.png"><br><br>※题型：多选题※知识点：多选题※试题难度：中等<br>下列各项中构成一个生态系统的是( )<br>A.农田中的全部动、植物和微生物<br>B.黄河中的所有生物及其生存环境<br>C.竹林中的全部熊猫和他们的食物<br>D.沙漠及沙漠中的全部生物<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/bcc2f687c4b4446f9d89d5a0b72e9bfc/D18D4D13EAB1C5050787CC6EDF970E13.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/379b78bcb1b74e79b9d02758e4939fd9/D182E8C6020DA3E05FF4B2C7B9C9F21D.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>植物细胞结构中,具有支持和保护作用的细胞结构是( )<br>A.细胞壁 B.细胞膜 C.细胞核 D.细胞质<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/76650bb3c5644ef3b9f2bd81441f38df/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/528fd4152bf94b34bd3302c11bb49b3f/C6228C1BE14410DCCFA2B7A3CB59CB06.png"><br><br>※题型：多选题※知识点：多选题※试题难度：较易<br>观察人的口腔上皮细胞的实验中,载玻片的中央滴加,而观察洋葱表皮细胞的装片时,载玻片中央滴加( )<br>A.0.9%的生理盐水 B.清水<br>C.90%的生理盐水 D.碘液<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/ab2fdcc318874cc1a79e1e7e23a14f7d/F05F41FFB1AEDF335FC9F5087E5D9329.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/54b4057641fc4e45ab29bc60ace05f8a/1A2F7FDC8594E6A9C8A4075BCDCA3879.png"><br><br>
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