2020-2021学年九年级下册化学人教版单元测试AB卷 第十二单元 化学与生活 A卷 基础夯实
※题型：单选题※知识点：单选题※试题难度：较易<br>下列物质能为人体生命活动提供所需能量的是( )。A.<img src="https://picture2.zhihuicn.com/testImage/2/2020/1/9/D350503FAEB172B50F09D85EB5C5B0A3.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2020/1/9/7002435560602C62060BA723DC55D86C.png"><br>C.淀粉<br>D.氯化钠<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/fbdb4a2f1b3a4163bb102bcbb2540626/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/cc3cc3430c9e46a49949d7d86073f0e3/AF4A9A45264D3B6571E1A8F95C7FE2AD.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>下列物品所使用的材料中,属于有机合成材料的是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2019/11/1/1CEE4EAB5F8C29870E5E95399926EDF3.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2019/11/1/8C0CC90AEE478AFA6C712F506E233B56.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2019/11/1/9D74A5D274A41A607681E43E55A1BFD6.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2019/11/1/E3B39490FA6E7254508087AD00E4A465.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2019/8edd63024bd04533a05da921b32d1447/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2019/a4973bc0b1384e43886edb5705eaef1d/18F8FBAABE7438DC6F045A83901FF321.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>下列有关维生素的说法中错误的是( )<br>A.缺乏维生素A易引起夜盲症<br>B.缺乏维生素C易引起坏血病<br>C.缺乏维生素应多吃蔬菜和水果<br>D.维生素在人体内需求量很少,作用不太大<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/ca6e514215ff45a6af976333b8cde81d/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/fded3a5723564e5aa47f12ad325ada41/EBC4DF6DDF3B0E6546EF7C4992DE0697.png"><br><br>※题型：单选题※知识点：单选题※试题难度：容易<br>“创建全国文明城市,从我做起”。下列做法与“创文”不相符的是( )<br>A.积极参加义务植树,增加绿地面积<br>B.减少城市雾霾,提倡公交出行<br>C.为了购物方便,提倡使用塑料袋<br>D.生活垃圾分类投放<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/5ed961e29a1449359ba021f7cf8e385f/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/d3eae14a6838442a87d470a6b31d7a9d/CC80C5CB0C45B7A2DD8E6B7516922B37.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>蚕丝含有蛋白质,在灼烧时有烧焦羽毛的气味,下列物质灼烧时也会产生该气味的是( )<br>A.猪皮 B.牛油 C.青椒 D.馒头<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2019/7a76091e50a14314b586998206dac98b/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2019/7748c8f348a549d3947b8e829dd8c5de/CF075637DABD189ABCD217EE5794C7AA.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>王明为妈妈设计了一份午餐食谱:米饭、水煮大虾、麻辣豆腐。这个食谱营养不够全面,加上下列选项中的一项后能使之合理。这一项是( )<br>A.牛奶 B.清炒油菜 C.鸡蛋羹 D.小米粥<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2019/116b18d148644590ac13a1ae3031a9f3/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2019/1d9333bee594471987ef49b700e60481/77A8FAE37686968826946F35E54B1C3A.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>关注健康,预防疾病。下列叙述错误的是( )<br>A.霉变的食物不能食用,但可用作词料<br>B.六大基本营养素不是都能提供能量<br>C.虾皮、豆类、奶酪中含有丰富的钙元素<br>D.水果蔬菜中含有丰富的维生素<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2019/b1d749027bd741ec95273f55c4008687/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2019/20be60cc42664452b2ac9c02c7db5f55/F54396F6058C5EC6AD50FBBFD706B81C.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>化学与我们的生活息息相关,下列说法错误的是( )<br>A.人体所需的热量主要来自糖类<br>B.新能源包括核能、风能和太阳能等<br>C.有机高分子合成材料包括塑料、合成纤维和合成橡胶等<br>D.钙是人体所需要的一种微量元素,缺钙会导致贫血病<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2019/473372ae26494bbe83d48d8f940382a9/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2019/301a6f9621d54f23b33ae061c31fa678/EB439E72F194FE1CFA1A9E4ADF9586C6.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>化学元素与人体健康息息相关。下列关于元素影响人体健康的表述不正确的是( )<br>A.缺氟易产生龋齿<br>B.缺硒会引起甲状腺肿大<br>C.老年人缺钙会导致骨质疏松<br>D.长期缺铁会引发缺铁性贫血<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/d8bcdeba61d14108b388302a4c872b4c/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/9ecd7559a72e47c18ddc698265dfbecf/4EB7E0C86B3625395DF66340CCFCBF01.png"><br><br>※题型：问答题※知识点：问答题※试题难度：容易<br>国家宝藏“绢衣彩绘木俑”是“一带一路”沿线的历史遗存。她们妆容考究、彩衣飘飘、锦衣罗衫,再现了唐代的繁荣、开放和包容。<br><img src="https://picture2.zhihuicn.com/testImage/2/2020/12/14/6D2B5ACF0C26E5410E4FB91F043E9CF6.png"><br>1.以蚕丝为原料可织成绢和绫,再用它们可做成襦裙和间裙。这些服饰的原材料属于__________________纤维,这种纤维的优点是__________________(写一点)。2.木俑上的彩绘虽年代久远,仍色彩鲜艳,说明彩绘颜料的化学性质__________________。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/98c5e6cb0fb6447da6d0192a4f99be6c/2E9101FF9D30CFC5DD9B8279A7490704.png"><br>解析<br>略<br>※题型：问答题※知识点：问答题※试题难度：容易<br>扬州早点是一张靓丽的城市名片。<br><img src="https://picture2.zhihuicn.com/testImage/2/2020/12/14/A8B6BDCEADC75E57E47437A7D8604326.png"><br>1.扬州包子面皮如雪。面皮的主要成分为淀粉,淀粉属于________________(填字母序号)。A.糖类 B.油脂 C.蛋白质2.大煮干丝富含蛋白质。蛋白质在人体内转化为能被吸收的小分子化合物,这类化合物称为________________。3.翡翠烧卖色泽翠润,所用天然色素来自新鲜绿色蔬菜。获取天然色素时,将菜渣与菜汁分离开可采用________________的方法。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/d2c4ad2f5f6747558f77f5d1c7a4cfe8/C1D077F7E2EF12BA1C03E7B5D6609C00.png"><br>解析<br>略<br>
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