出自:乐山师范学院生物科学

Fill in the blanks with appropriate words according to the context. And as this is 1() of the techniques of mankind, so it is true of mankind’s 2()resources. Most of these resources, both 3() and spiritual, are stored in books. Books are man’s 4() accomplishment. When you have read a book, you have 5()to your human experience. Read Homer and your mind includes a 6()of Homer’s mind. Through books you can 7() at least fragments of the mind and 8() of Virgil, Dante, Shakespeare--the list is 9(). For a great book is necessarily a (); it offers you a 11() you have not the time to live yourself, and it takes you into a world you have not the time to travel in 12() time. A civilized 13() is, in 14(), one that contains many such lives and many such 15(). If you are too much in a 16(), or too arrogantly proud of your own 17(), to accept as a gift to your 18() some pieces of the minds of Aristotle, or Chaucer or Einstein, you are 19() a developed human nor a useful 20() of a democracy. 1.(____)
There are 20 blanks in the following passage. For each blank there are four choices marked A), B), C) and D). You should choose the ONE that best fits into the passage. Then mark the corresponding letter on the answer sheet. Generally speaking, a British is widely regarded as a quiet, shy and conservative person who is 36 only among those with whom he is acquainted. When a stranger is at present, he often seems nervous, 37 embarrassed. You have to take a commuter train any morning or evening to 38 the truth of this. Serious-looking businessmen and women sit reading their newspapers or dozing in a corner; hardly anybody talks, since to do so would be considered quite offensive. 39 , there is an unwritten but clearly understood code of behavior which, 40 broken, makes the offender immediately the object of 41. It has been known as a fact that the British has a 42 for the discussion of their weather and that, if given a chance, he will talk about it 43. Some people argue that it is because the British weather seldom 44 forecast and hence becomes a source of interest and 45 to everyone. This may be so. 46 a British cannot have much 47 in the weathermen, who, after promising fine, sunny weather for the following day, are often proved wrong 48 a cloud over the Atlantic brings rainy weather to all districts! The man in the street seems to be as accurate---or as inaccurate---as the weathermen in his 49. Foreigners may be surprised at the number of references 50 weather that the British make to each other in the course of a single day. Very often conversational greetings are 51 by comments on the weather. “Nice day, isn’t it?” “Beautiful!” may well be heard instead of “Good morning, how are you?” 52 the foreigner may consider this exaggerated and comic, it is worthwhile pointing out that it could be used to his advantage. 53 he wants to start a conversation with a British but is 54 to know where to begin, he could do well to mention the state of the weather. It is a safe subject which will 55 an answer from even the most reserved of the British. 36.
团藻在动物演化上有重要意义,其分类地位是 A. 海绵动物门 B. 原生动物门 C. 腔肠动物门 D. 扁形动物门
桃花水母是属何种类? A. 水螅型发达; B. 水母型不发达; C. 水母型发达,水螅型不发达或不存在; D. 水母型和水螅型均发达。
海月水母的消化循环腔的下列辐管中哪一种不分枝? A. 正辐管; B. 间辐管; C. 从辐管; D. 环管。
人们可以利用何种激素来增加蚕丝的产量? A. 保幼激素 B. 脑激素 C. 蜕皮激素 D. 利尿激素
黄色组织的来源是 A. 脏体腔膜 B. 肠上皮细胞 C. 表皮细胞 D. 外胚层
海绵动物是动物系统进化中的侧枝,下列哪一特点( )不属于海绵动物。 A. 具领细胞 B. 具水沟系 C. 有胚胎逆转现象 D. 具两个胚层
制片时,要麻醉涡虫和水螅,应用哪种药物? A. 硫酸镁; B. 福尔马林; C. 食盐; D. 醋酸。
在动物组织的分类系统中,硬骨属于 A. 致密结缔组织 B. 硬骨组织 C. 网状结缔组织 D. 疏松结缔组织
无脊椎动物的前肠和后肠来源于 A. 内胚层 B. 外胚层 C. 中胚层 D. 体腔膜
水螅的生殖腺来源于 A. 内胚层 B. 外胚层 C. 中胚层 D. 内皮肌细胞
水螅为淡水生活的腔肠动物,下列哪种叙述是不正确的 A. 水螅有多种运动行为,如捕食运动、尺蠖运动和翻筋斗运动等。 B. 具有两个胚层和消化循环腔 C. 神经系统发达,有感觉运动中心 D. 具有辐射对称的体制
伸缩泡的主要功能是 A. 消化作用 B. 调节水分平衡 C. 呼吸作用 D. 运动作用
间日疟原虫的中间寄主为 A. 钉螺 B. 沼螺 C. 按蚊 D. 伊蚊
国际动物学会命名法委员会规定:动物的学名为拉丁名,学名采用双名法,该名称是动物通用名,其它的名称均为地方名。 下列动物学名书写规范的是 A. Parus major B. Parus Major C. Parus major D. Parus Major
水沟系这种特殊的结构存在于()中。 A. 棘皮动物 B. 腔肠动物 C. 软体动物 D. 海绵动物
寄生于人体红细胞内的间日疟原虫,有性生殖开始是形成: A. 孢子和孢子体; B. 大配子和小配子; C. 大配子母细胞和小配子母细胞; D. 配子孢囊和合子孢囊。
具有胞饮作用的动物是 A. 眼虫 B. 夜光虫 C. 草履虫 D. 变形虫
实验动物常用给药途径有(____)、 (____)等。
裸鼠除全身无毛外,还有 (____)等特征。
实验动物
封闭群动物
杂交优势
近交系动物 :
、 ( )是人才素质的基础。 A. 德 B. 智 C. 体 D. 美
葫芦科植物属于( )胎座。 A. 边缘胎座 B. 侧膜胎座 C. 中轴胎座 D. 特立中央胎座
水稻和小麦等禾本科植物拔节、抽穗时,茎迅速长高,是借助 ( ) 的活动。 A. 顶端分生组织 B. 侧生分生组织 C. 次生分生组织 D. 居间分生组
禾本科植物的分枝方式特称为( )。 A. 单轴分枝 B. 合轴分枝 C. 二叉分枝 D. 分蘖
被子植物生活史中,两个时代交替的转折点是( )。 A. 减数分裂和受精作用 B. 花粉和胚囊发育成熟 C. 减数分裂和种子萌发 D. 胚形成和种子萌发
蛋白质合成是在哪一种细胞器上进行的? ( ) A. 线粒体 B. 核糖体 C. 溶酶体 D. 高尔基体
果实成熟后,果皮内含有大量的薄壁组织和少量的厚壁组织。薄壁组织内含有大量的水分,这种果实叫肉质果,如核桃。( )
在裸子植物中, 铁树纲和银杏纲两类植物的精子具有鞭毛, 这是说明它们是裸子植物中较原始的类型。( )
青霉的菌丝是多细胞丝状体, 在显微镜下看到菌丝有分隔, 在繁殖时可看到分生孢子梗及其呈扫帚状分枝和在顶端成串的 分生孢子。( )
具有发达角质层和内陷气孔是松针叶两个重要的抗旱、抗寒特征。( )
种子萌发时,胚芽首先突破种皮,伸出土面形成幼叶,幼叶光合作用的产物通过胚轴运输给胚根,使之突破种皮向下形成根 系.。( )
一个完整的植物学名包括(____)、(____)和(____)三部分。用(____)文书写,是由瑞典植物学家(____)创立的。
蔷薇科有四个亚科,分别是:(____)亚科、(____)亚科、(____)亚科和(____)亚科。
当次生壁形成时, 次生壁上具有一些中断的部分, 这些部分也就是初生壁完全不被次生壁覆盖的区域, 称为(____), 它一般分 为(____)和(____)两种类型。
小麦种子的胚与双子叶植物种子的胚相比较, 它具有如下特点:胚根具有(____); 胚芽具有(____); 胚轴的一侧为子叶, 有 (____)片, 子叶又称为(____); 在胚轴的另一侧与子叶相对处, 还有一片薄膜状突起, 称为(____)。
被子植物生活史存在二个基本阶段即(____)阶段和(____)阶段。
单雌蕊与复雌蕊:
原生质与原生质体:
无限花序与有限花序:
等面叶与异面叶:
同源器官与同功器官:
利用植物学的知识,说明“老树中空还能生存”及“树怕剥皮”的道理。
你是如何区分单叶和复叶的?