2019-2020学年度华师大版科学七年级上册第2章 生物的主要类群拔高训练第四十五篇
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精选2019-2020年初中七年级上册科学第2章生物的主要类群华师大版课后辅导练习➢第1题【单选题】动物分类的过程中,其比较的内容中不包括( )A、外部形态结构B、生活环境C、内部结构D、生理功能【答案】:【解析】:➢第2题【单选题】鸟类每呼吸一次,在肺里进行气体交换的次数是( )A、一B、二C、三D、四【答案】:【解析】:➢第3题【单选题】下列各种植物中,不依靠孢子繁殖的是( )A、苔藓植物B、蕨类植物C、藻类植物D、裸子植物【答案】:【解析】:➢第4题【单选题】A、B、C、D、【答案】:【解析】:➢第5题【单选题】“五月枇杷黄”,每年5月,我市各地的早熟枇杷陆续采摘上市,仔细观察如图中的枇杷结构,你认为枇杷属于( )A、苔藓植物B、蕨类植物C、裸子植物D、被子植物【答案】:【解析】:➢第6题【单选题】据报导,最近一些花店用“黄莺”来插花,经证实这是有“植物杀手”之称的加拿大一枝黄花。
这种植物的强大繁殖力是通过根和种子两种方式进行。
专家提醒市民观赏后,不要随地丢弃。
否则,生根、开花、结子,成熟的种子可能随风飘散,对城市绿化造成破坏和危害本土植物。
由上述的报导,可判定“黄莺”是属于( )A、藻类植物B、蕨类植物C、裸子植物D、被子植物【答案】:【解析】:➢第7题【单选题】下列植物属于蕨类植物的是( )A、B、C、D、【答案】:【解析】:➢第8题【单选题】在海边游泳被海蜇蜇伤后,用肥皂水进行清洗可缓解疼痛,下列有关海蜇的叙述,正确的是( )A、海蜇的身体有内、中、外三个胚层B、海蜇蛰人的刺细胞分布在外胚层中C、海蜇的消化腔前端有口后端有肛门D、海蜇与水螅、涡虫同属于腔肠动物【答案】:【解析】:➢第9题【单选题】海洋中生活着多种多样的动物,为我们提供了大量的鲜美食品,如乌贼、龙虾、带鱼等,这些生物分别属于( )A、节肢动物、软体动物、鱼类B、软体动物、环节动物、两栖动物C、软体动物、节肢动物、鱼类D、节肢动物、软体动物、扁形动物【答案】:【解析】:➢第10题【单选题】某同学将鸡、蚕、鲤鱼、蜗牛四种动物分成两类,一类是鸡和鲤鱼,另一类是蚕和蜗牛。
最新精选初中科学七年级上册第2章生物的主要类群华师大版拔高训练第九十四篇第1题【单选题】冬眠的青蛙,几乎完全靠( )A、鳃呼吸B、口呼吸C、皮肤呼吸D、肺呼吸【答案】:【解析】:第2题【单选题】下列动物不会飞的鸟类是( )A、兔B、蝙蝠C、企鹅D、昆虫【答案】:【解析】:第3题【单选题】藻类植物需要的水分和无机盐是通过下列哪种结构吸收的?( )A、根B、茎C、叶D、整个身体【答案】:【解析】:第4题【单选题】水螅身体为( )A、辐射对称B、两侧对称C、左右对称D、上下对称【答案】:【解析】:第5题【单选题】在观察蚯蚓运动的实验中,要经常用浸水的湿棉球轻擦蚯蚓体表,使其体表保持湿润,这是做的目的是( )A、有利于蚯蚓的运动B、有利于蚯蚓的正常呼吸C、便于蚯蚓留下运动痕迹D、保持蚯蚓身体的柔软性【答案】:【解析】:第6题【单选题】在温暖湿润的环境中,馒头放久了,表面生出的青灰色“斑”是( )A、叶绿体B、芽孢C、荚膜D、菌落【答案】:【解析】:第7题【单选题】蝗虫的气门位于( )A、头部B、胸部C、腹部D、胸部和腹部【答案】:【解析】:第8题【单选题】在探究鸟适于飞行的特点时,分析下列特征与鸟减轻体重无关的是( )A、长骨中空B、胸骨突出C、骨薄而轻D、直肠短【答案】:【解析】:第9题【单选题】蝗虫的主要视觉器官是( )A、眼睛B、眼点C、复眼D、单眼【答案】:【解析】:第10题【单选题】蕨类植物只适宜生活在阴暗潮湿环境的原因是( )A、植株矮小,没真正的根、茎、叶B、体内无输导组织C、生殖过程离不开水D、不能开花结果【答案】:【解析】:第11题【单选题】蜥蜴是真正的陆生脊椎动物主要表现在( )A、生殖和发育完全摆脱了对水的依赖B、用肺呼吸C、卵生D、皮肤有角质细鳞覆盖【答案】:【解析】:第12题【单选题】下列动物中的脊椎动物是( )A、金鱼B、龙虾C、蚯蚓D、蝗虫【答案】:【解析】:第13题【单选题】中国传统武术中有几路特色拳法是模仿某些动物动作创建的.某同学在看完影片《功夫熊猫》后给其中的虎、蛇、鹤、猴、螳螂五种动物进行了分类,你并查阅了熊猫这五种生物的特征,你认为下列说法合理的是( )A、按有无脊柱分为:虎、鹤、猴与螳螂、蛇两类B、按体温是否恒定分为:虎、猴、鹤与蛇与螳螂两类C、蛇的生殖和发育过程没有摆脱水的限制,不是真正的陆生脊椎动物D、熊猫、虎、猴的生殖方式都是胎生,提高了后代的成活率【答案】:【解析】:第14题【单选题】下图是葫芦藓、肾蕨、苏铁和木瓜的分类,其中乙、丙所代表的植物分别是( )A、葫芦藓、肾蕨B、苏铁、木瓜C、肾蕨、葫芦藓D、木瓜、苏铁【答案】:【解析】:第15题【单选题】下列节肢动物中,与蝴蝶亲缘关系最近的是( )A、B、C、D、【答案】:【解析】:第16题【填空题】以下是藻类、苔藓和蕨类植物示意图,请据图回答下列问题。
2019-2020年科学七年级上册第2章生物的主要类群3 细菌和真菌华师大版练习题五十一第1题【单选题】下列关于真菌的描述,错误的是( )A、有成形的细胞核B、有细胞壁C、靠摄取现成的有机物生活D、都是单细胞生物【答案】:【解析】:第2题【单选题】放久的馒头会长出“白毛”或“黑毛”,“白毛”或“黑毛”属于霉菌,它们来自( )A、空气中飘来的孢子B、空气中飘来的菌丝C、面粉中携带的孢子D、面粉中携带的菌丝【答案】:【解析】:第3题【单选题】下列对草履虫、衣藻和酵母菌的有关叙述正确的是( )A、细胞中都有细胞壁B、细胞中都有叶绿体C、都能独立完成生殖D、它们都是原核生物【答案】:【解析】:第4题【单选题】猕猴桃果醋是利用醋酸杆菌的发酵作用制成的,醋酸杆菌是一种细菌,其细胞结构的主要特点是( )A、有叶绿体B、没有成形细胞核C、没有细胞膜D、没有细胞质【答案】:【解析】:第5题【单选题】下列对微生物的认识正确的是( )A、病毒没有细胞结构,繁殖方式是分裂生殖B、真菌都是单细胞生物C、细菌的主要结构特点是没有成形的细胞核D、细菌的繁殖方式是孢子生殖【答案】:【解析】:第6题【单选题】面包发霉时长出的“毛”属于( )A、细胞B、真菌C、小型植物D、原生动物【答案】:【解析】:第7题【单选题】在显微镜下能看到某种霉菌的直立菌丝顶端呈扫帚状结构,其分支上排列着成串的孢子,这种霉菌是( )A、酵母菌B、曲霉C、青霉D、蘑菇【答案】:【解析】:第8题【单选题】下列关于人类对细菌和真菌的利用,不正确的是( )A、<!--{cke_protected}{C}%3C!%2D%2D%5Bif%20gte%20mso%209%5D%3E%3Cxml%3E%0A%20%3Cw%3AWordDocument%3E%0A%20%20%3Cw%3AView%3ENormal%3C%2Fw%3AView%3E%0A%20%20%3C w%3AZoom%3E0%3C%2Fw%3AZoom%3E%0A%20%20%3Cw%3ATrackMoves%2F%3E%0A%20%20%3 Cw%3ATrackFormatting%2F%3E%0A%20%20%3Cw%3APunctuationKerning%2F%3E%0A%20%20%3C 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2019年精选华师大版科学七年级上册第2章生物的主要类群4 生物的分类拔高训练七十三第1题【单选题】下列关于生物分类的说法,正确的是( )A、生物分类的依据是生物个体大小B、同一分类单位中的生物,其特征完全相同C、分类单位越小,所包含的生物种类越多D、生物分类的基本单位是种【答案】:【解析】:第2题【单选题】A、B、C、D、【答案】:【解析】:第3题【单选题】生物等级分类中最低等级是( )A、界B、门C、种D、科w【答案】:【解析】:第4题【单选题】生物检索表常用来鉴定生物的种类。
请利用这张简单的“脊椎动物检索表”,鉴定出下列动物中属于S 类动物的是( )A、B、C、D、【答案】:【解析】:第5题【单选题】在植物检索表中,下列特征无法区分出单子叶植物和双子叶植物的是( )A、根系B、叶脉C、子叶数目D、种子外表【答案】:【解析】:第6题【单选题】如图分类检索表中,鸽子的位置是( )A、甲B、乙C、丙D、丁【答案】:【解析】:第7题【单选题】采用双名法统一动植物命名的科学家是( )A、李时珍B、亚里士多德C、林奈D、虎克【答案】:【解析】:第8题【单选题】在非洲的雨林中,生活着一种飞鼠,体表长有皮毛,前肢和身体之间有薄膜相连;会在空中滑翔,体温恒定;胎生小飞鼠,靠母乳哺育长大。
根据以上信息,试判断飞鼠属于脊椎动物中的哪一类?( )A、鸟类B、两栖类C、哺乳类D、爬行类【答案】:【解析】:第9题【填空题】请完成下面的检索表:______;______;______;______【答案】:【解析】:第10题【填空题】小刚根据如图所示检索表,可查出图中昆虫所属的类别是______?A、乙【答案】:【解析】:第11题【填空题】根据所学知识填空:生物分类等级由高到低顺序是:______。
其中分类等级的基本单位是:______。
小金买来一个西红柿,用开水烫一下以便于剥皮,则“皮”是______组织;吃果肉,果肉是______组织;“藕断丝连”中“丝”是植物中的______组织。
2019-2020年华师大版初中科学七年级上册第2章生物的主要类群3 细菌和真
菌课后练习第二十六篇
第1题【单选题】
关于细菌和真菌的说法,正确的是( )
A、细菌和真菌对人类一般都是有害的
B、遇到不良环境时,细菌通过芽孢繁殖
C、细菌都是单细胞生物,真菌有多细胞的,也有单细胞的
D、酵母菌与乳酸菌结构的主要区别是后者有成形的细胞核
【答案】:
【解析】:
第2题【单选题】
青霉是因为颜色而得名,其颜色来自( )
A、绿色菌丝
B、青绿色孢子
C、菌丝中含叶绿素
D、灰尘
【答案】:
【解析】:
第3题【单选题】
运用所学的知识分析,你认为下列认识和做法正确的是( )
A、低温保存食品的原理是把食品中的细菌和真菌杀死
B、当体内有炎症时,血液中白细胞数目增多吞噬病菌,这属于特异性免疫
C、与艾滋病患者的一般接触(如握手、共同进食等)不会感染艾滋病
D、味道鲜美的蘑菇能进行光合作用,制造有机物
【答案】:
【解析】:
第4题【单选题】
豆科植物的根瘤是由哪两种生物共同生活所形成的?( )
A、根瘤菌和植物根部
B、藻类与真菌
C、藻类与细菌
D、原生动物与根瘤菌
【答案】:
【解析】:。
2019年精选初中七年级上册科学第2章生物的主要类群华师大版拔高训练第九
十八篇
第1题【单选题】
下列不属于腔肠动物的是( )
A、水螅
B、海葵
C、珊瑚虫
D、血吸虫
【答案】:
【解析】:
第2题【单选题】
河蚌的呼吸器官是( )
A、鳃
B、胃和畅
C、触唇
D、外套膜
【答案】:
【解析】:
第3题【单选题】
营养器官没有分化的植物类群是( )
A、藻类植物
B、苔藓植物
C、蕨类植物
D、被子植物
【答案】:
【解析】:
第4题【单选题】
下列植物不产生种子的是( )
A、银杏
B、桃树
C、水绵
D、玫瑰
【答案】:
【解析】:
第5题【单选题】
若将下列四支试管放置在37℃的恒温箱中,一周后,其内生长微生物最多的是( )。
2019-2020年初中科学七年级上册第2章生物的主要类群华师大版拔高训练第八十篇第1题【单选题】“天高云淡,望断南飞雁”.为了适应飞行,雁的骨骼( )A、薄而轻,长骨中空B、厚而坚固C、胸骨退化D、长骨厚而重【答案】:【解析】:第2题【单选题】下列全部属于无脊椎动物的一组是( )A、蝴蝶、黄鳝B、蚯蚓、蛇C、蜘蛛、虾D、蜂鸟、蜗牛【答案】:【解析】:第3题【单选题】在下列分类单位中,不同生物之间的亲缘最“近”的是( )A、门B、纲C、科D、属【答案】:【解析】:第4题【单选题】下列各项中不属于苔藓植物主要特征的是( )A、利用孢子进行繁殖B、一般具有茎和叶,但没有输导组织C、有根.叶.茎的分化,里面有输导组织D、受精作用离不开水,适于生活在潮湿的地方【答案】:【解析】:第5题【单选题】A、山猫B、美洲狮C、大熊猫D、美洲野猫【答案】:【解析】:第6题【单选题】藻类植物需要的水分和无机盐是通过下列哪种结构吸收的?( )A、根B、茎C、叶D、整个身体【答案】:【解析】:第7题【单选题】许多既有趣味性又富含哲理的歇后语都与动物有关。
如“地理的蚯蚓——能屈能伸”、“长颈鹿的脖子丹顶鹤的腿——各有所长”、“春蚕结茧——一丝不苟”、“蚂蚁搬家——大家动口” “瓮中捉鳖——十拿九稳”等老师将这些动物分成了两大类,其归类的依据最可能的是( )A、生活环境的不同B、体内有无脊柱C、运动方式的不同D、呼吸方式的不同【答案】:【解析】:第8题【单选题】被誉为“中国双孢菇之乡”的莘县,种植的双孢菇闻名遐迩,双孢菇生长所需的条件不包括( )A、水分B、适宜的温度C、有机物D、阳光【答案】:【解析】:第9题【单选题】蚯蚓是常见的一种陆生环节动物,生活在土壤中,昼伏夜出,以畜禽粪便和有机废物垃圾为食,连同泥土一同吞入.关于蚯蚓和人类的关系,说法错误的选项是( )A、疏松土壤、增加肥力、改善土壤结构B、解决环境的好帮手,也可以药用C、雨后蚯蚓需要破土运动,破坏了我们的生活环境D、促进生态环境中的物质循环起着重要作用【答案】:【解析】:第10题【单选题】下面是沿海常见的海洋动物,属于软体动物的是( )①鲍鱼②梭子蟹③海蜇④扇贝⑤章鱼⑥对虾A、①④⑤B、②③④C、①③④D、③⑤⑥【答案】:【解析】:第11题【单选题】下列动物中,摄食和排泄是同一个开口的是( )A、草履虫B、水螅C、蚯蚓D、海星【答案】:【解析】:第12题【单选题】芸豆、黄瓜、西红柿、海带、花生等都是餐桌上常吃的菜品,小明同学想获取它们的种子来种植,你认为他不可能得到的是( )A、黄瓜B、西红柿C、海带D、芸豆【答案】:【解析】:第13题【单选题】脊椎动物和无脊椎动物的根本区别是( )A、水生还是陆生B、有无脊椎骨C、有无翅膀D、体型的大小【答案】:【解析】:第14题【单选题】美国境内发现能抗最强抗生素的细菌——多粘菌素的超级细菌,下列对超级细菌的描述中正确的是( )A、超级细菌没有细胞膜B、超级细菌没有成形的细胞核C、超级细菌没有细胞壁D、超级细菌有叶绿体【答案】:【解析】:第15题【填空题】茶叶是温州的经济作物之一,品种丰富,种植历史悠久。
2019-2020学年度初中七年级上册科学第2章生物的主要类群1 动物的主要类群华师大版复习特训第六十四篇第1题【单选题】蚯蚓刚毛的作用是( )A、协助运动B、防御敌害C、捕获食物D、协助呼吸【答案】:【解析】:第2题【单选题】下列各种动物,不具备躯干、足和触角均分节特征的是( )A、梭鱼B、蝎子C、桑蚕D、对虾【答案】:【解析】:第3题【单选题】下列属于无脊椎动物的一组是( )A、乌贼虾B、河蚌蛇C、蜜蜂家兔D、蜂鸟恐龙【答案】:【解析】:第4题【单选题】蛔虫寄生在人的小肠里,能抵抗消化液的侵蚀,是因为( )A、生殖能力强B、体表有角质层C、口能吞食消化液D、消化管结构简单【答案】:【解析】:第5题【单选题】科学研究中常常需要对生物进行分类,下列动物中( )A、青蛙属于爬行类B、只有金丝猴属于脊椎动物C、鲫鱼和鲸都属于鱼类D、金丝猴和鲸都属于哺乳类【答案】:【解析】:第6题【单选题】2014年4月2日,台湾八大电视《世界第一等》栏目摄制组一行6人,来到宁陕县龙泉大鲵养殖基地拍摄大鲵养殖.娃娃鱼,学名大鲵.娃娃鱼属于( )A、扁形动物B、环节动物C、两栖动物D、爬行动物【答案】:【解析】:第7题【单选题】2012年伦敦奥运会吉祥物“文洛克”是以萨罗普羊为原型设计的.萨罗普羊在繁殖上具有胎生、哺乳的特点,它属于( )A、两栖类B、爬行类C、鸟类D、哺乳类【答案】:【解析】:第8题【单选题】家兔的心脏结构和体温变化的特点分别是( )A、心脏四腔,体温恒定B、心脏四腔,体温不恒定C、心脏二腔,体温恒定D、心脏二腔,体温不恒定【答案】:【解析】:第9题【单选题】大雨过后,可以看到许多蚯蚓爬到地面上来,这是由于( )A、蚯蚓喜欢水多的环境B、雨后地面上食物较多C、土壤中缺少空气D、洞穴内太干燥【答案】:【解析】:第10题【单选题】蚯蚓等环节动物的共同特征是( )A、身体有许多环状体节构成B、身体里有脊柱C、体表包有坚韧的外骨骼D、足、触角分节【答案】:【解析】:第11题【单选题】下列关于蚯蚓体壁发生的气体交换描述正确的是( )A、氧气先溶于体壁的毛细血管里,然后进入体表的黏液B、氧气先溶于体表的黏液,然后进入体壁的毛细血管里C、二氧化碳先溶于体表的黏液,然后进入体壁的毛细血管里D、氧气和二氧化碳都先溶于体表的黏液,然后进入体壁的毛细血管里【答案】:【解析】:第12题【单选题】青蛙的幼体和成体的主要呼吸器官分别是( )A、鳃和皮肤B、皮肤和鳃C、鳃和肺D、肺和皮肤【答案】:【解析】:第13题【填空题】请回答几种脊椎动物的有关问题:鲫鱼终生生活在水中,用______呼吸,用______游泳,用______感知水流方向.家鸽的飞行器官是翼,用______呼吸,用______辅助呼吸,家鸽属于______(选填“恒温”或“变温”)动物.蝙蝠能飞,繁殖和哺育后代具有______生、哺乳的特征,因而属于哺乳动物.【答案】:【解析】:第14题【填空题】“将虾、鲤鱼、乌龟、狗归为一类,将蝴蝶、蜜蜂、麻雀、蝙蝠归为另一类的理由是______。
精选2019-2020年初中七年级上册科学第2章生物的主要类群华师大版复习特
训
➢第1题【单选题】
如图是最常见的环节动物之一——蚯蚓,下列有关叙述错误的是( )
A、B端是蚯蚓的前端
B、①是蚯蚓的环带
C、蚯蚓的身体由许多相似的②组成
D、蚯蚓靠湿润的体壁进行呼吸
【答案】:
【解析】:
➢第2题【单选题】
若图中的a、b分别代表蕨和桃树两种植物,阴影部分代表它们之间的共同点。
则下列选项中不属于阴影部分的是( )
A、由细胞组成
B、能进行新陈代谢
C、有根、茎和叶的分化
D、能利用种子繁殖
【答案】:
【解析】:
➢第3题【单选题】
章鱼、乌贼和河蚌都属于水中生活的软体动物,它们具有的共同特征是( )
A、身体柔软
B、体表长有外骨骼
C、有消化腔,有口无肛门
D、身体由体节构成
【答案】:
【解析】:
➢第4题【单选题】
湛江鸡在广东饮食界享有盛名,下列选项中属于鸡的主要特征是( )
A、胎生
B、恒温动物
C、前肢变为翼
D、体表覆盖有鳞片
【答案】:。
2019-2020年华师大版初中科学七年级上册第2章生物的主要类群课后辅导练习
第1题【单选题】
下列属于无脊椎动物的是( )
A、鸟
B、章鱼
C、鱼
D、人
【答案】:
【解析】:
第2题【单选题】
猪肉绦虫是一种营寄生生活的扁形动物,据此可推测其最发达的结构是( )
A、呼吸器官
B、消化器官
C、生殖器官
D、运动器官
【答案】:
【解析】:
第3题【单选题】
蚯蚓的身体分节使蚯蚓( )
A、能够运动
B、运动灵活
C、呼吸自如
D、提高体温
【答案】:
【解析】:
第4题【单选题】
下列各组动物中,都用鳃呼吸的是( )
A、河蚌、鲨鱼、海马
B、鲸、蛇、甲鱼
C、青蛙、青鱼、蝌蚪
D、鲫鱼、娃娃鱼、鲸鱼
【答案】:
【解析】:
第5题【单选题】
下图是葫芦藓、肾蕨、苏铁和木瓜的分类,其中乙、丙所代表的植物分别是( )。
2019-2020学年度华师大版科学七年级上册第2章生物的主要类群拔高训练第四
十五篇
第1题【单选题】
下列是同学们熟悉的一些空中飞行的动物,不属于鸟类的是( )
A、家鸽
B、大雁
C、蝙蝠
D、麻雀
【答案】:
【解析】:
第2题【单选题】
儒艮之所以被称为“美人鱼”,是因为母兽给幼崽喂奶时常浮出水面,如同人类哺乳时的情形.由此可知,“美人鱼”属于下列脊椎动物类群中的( )
A、鱼类
B、两栖类
C、爬行类
D、哺乳类
【答案】:
【解析】:
第3题【单选题】
“竟说田家风味美,稻花落后鲤鱼肥。
”有关鱼类的描述不正确的是( )
A、生活在水中
B、在水中呼吸
C、依靠鳍游泳
D、都吃植物
【答案】:
【解析】:
第4题【单选题】
家兔适应陆地生活,有发达的神经系统和四肢,它的神经系统的组成是( )
A、脑,脊髓和神经
B、大脑和小脑
C、脑和脊髓
D、大脑、脊髓和神经
【答案】:
【解析】:
第5题【单选题】
蝾螈终生有尾,生活在清冷的净水池沼中,它属于( )
A、爬行动物
B、两栖动物
C、节肢动物
D、软体动物
【答案】:。