《医学基础知识》模拟卷

《医学基础知识》模拟卷
《医学基础知识》模拟卷

高考生物高考模拟试卷(附答案)

一、选择题(6分/题) 1.GFP在紫外光的照射下会发出绿色荧光。依据GFP的特性,你认为该蛋白在生物工程中的应用价值是 A.作为标记基因,研究基因的表达B.作为标签蛋白,研究细胞的转移 C.注入肌肉细胞,繁殖发光小白鼠D.标记噬菌体外壳,示踪DNA路径 2.右图为关于细胞的生物膜系统的概念图,下列相关叙述错误的是 A.图中a、b、c分别是指细胞膜、具膜的细胞器和核膜 B.图中m是指叶绿体的类囊体膜 C.图中p是指线粒体的内膜 D.图中的f和h分别是指内质网和高尔基体 3.下列关于各种酶作用的叙述,不正确的是 A.DNA连接酶能使不同脱氧核苷酸的磷酸与脱氧核糖连接B.RNA聚合酶能与基因的特定位点结合,催化遗传信息的转录C.一种DNA限制酶能识别多种核苷酸序列,切割出多种目的基因D.胰蛋白酶能作用于离体的动物组织,使其分散成单个细胞 4.生命世界多姿多彩,既统一又多样。下列有关说法中正确的有 ①没有细胞结构的生物一定是原核生物②光合作用一定要在叶绿体中进行③在细胞分裂过程中一定有DNA的复制④单倍体生物的细胞中一定只有一个染色体组⑤两个种群间的生殖隔离一旦形成,这两个不同种群的个体之间一定不能进行交配⑥在一条食物链中,营

养级高的生物个体数一定比营养级低的生物个体数少 A.一项B.二项C.三项D.四项 5.对下列有关细胞分裂的各图分析正确的有 A.甲乙两图所示细胞中都有2个染色体组B.甲乙两图对应丁图中的CD段 C.甲图可能是卵原细胞的增殖D.丙图中染色体与DNA 的比是2:1 6.下列对图中有关的生物学意义描述正确的是 A.若切断甲图中的c点,则刺激b点后,a点会兴奋,肌肉会收缩B.乙图中该遗传病一定是常染色体显性遗传病 C.丙图中,对向光弯曲的植物而言,若茎背光侧为B对应的生长素浓度,则茎向光侧不可能为C对应的浓度 D.丁图中若B表示5片新鲜土豆片放入等量过氧化氢溶液中的气体变化,则A表示8片新鲜土豆片放入等量过氧化氢溶液中的气体变化 二、非选择题 7.(一)(20分)下列图(一)示某兴趣小组研究生物新陈代谢的装置示意图(Ⅴ使装置中的空气以一定速度按箭头方向流动),图(二)为植物和高等动物新陈代谢的部分过程示意图,请根据图分析回答问题:

2020年上海市高考英语模拟试卷汇总

2020年上海市高考英语模拟试卷 考生注意: 1.考试时间120分钟,试卷满分140分。 2. 本考试设试卷和答题纸两部分。所有答题必须涂(选择题)或写( 非选择题)在答题纸上,做在试卷上律不得分。 3. 答题前,务必在答题纸上填写准考证号和姓名,并将核对后的条形码贴在指定位置上,在答题纸反面清楚地填写姓名。 I. Listening Comprehension Section A Directions: In Section A, you will hear ten short conversations between two speakers At the end of each conversation, a question will be asked about what was said. The conversations and' the questions will be spoken only once, After you hear a conversation and the question about it, read the four possible answers on your paper, and decide which one is the best answer to the question you have heard. 1. A. Teacher and student. B. Father and daughter. C. Manager and secretary. D. Customer and shop assistant. 2. A. In a museum. B. In a taxi. C. On a bus. D. On a bridge. 3. A. Get into the car. B. Carry the bags. C. Hurry to drive the car. D. Search for the bags. 4. A. Reading newspapers. B. Writing up local news. C. Talking about sports. D. Putting up advertisements. 5. A. She will have coffee at school. B. She will stay for breakfast. C. She loves to grab a coffee on the way. D. She needs to eat before school. 6. A. He partly agrees with the woman. B. He's missed an important point. C. He considers the woman competitive. D. He's wholly been lost in a colorful life.

2020年上海市高考英语模拟考试试卷

2020;2020;2020;2020;2020;2020;2020;2020;2020;2020;2020;20 20;2020;2020;2020;2020;2020;2020;2020;2020;2020;2020;2020 ;2020;2020;2020;2020;2020;2020;2020;2020;2020年全国普通高 等学校招生统一考试 上海英语试卷 第I卷 (共105分) I. Listening Comprehension Section A Directions: In Section A, you will hear ten short conversations between two speakers. At the end of each conversation, a question will be asked about what was said. The conversations and the questions will be spoken only once. After you hear a conversation and the question about it, read the four possible answers on your paper, and decide which one is the best answer to the question you have heard. 1. A. Go to the office B. Keep calling C. Try online booking D. See a doctor 2. A. A reporter B. An athlete C. A fisherman D. An organizer 3. A. At a post office B. At a fast-food restaurant C. At a booking office D. At a check-in desk 4. A. He already has plans. B. The woman should decide where to eat. C. He will make a reservation. D. The woman can ask her brother for advice.

高三生物模拟考试试题

高三生物模拟考试试题 生物试题2008.3 说明:命题人延庆一中平国志 1.本试卷分为第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分.满分72分,考试时间90分钟。 2.考生请将第I卷选择题的正确选项填涂至答题卡上。考试结束,只收答题卡和第II卷。 第Ⅰ卷(选择题,共24分) 一、选择题:每小题只有一个选项符合题意,每小题1分,共24分。 1、2005年6月,在四川发生的人—猪链球菌病,引起了全国人民的高度关注,其病原体是猪链球菌。下列关于猪链球菌的叙述正确的是:( A )A.猪链球菌通常进行分裂生殖 B.猪链球菌产生的可遗传变异来自基因重组和染色体变异 C.猪链球菌无核膜、无细胞器 D.组成猪链球菌遗传物质的核苷酸有8种 2、下列组合中,依次属于生命系统的结构层次中种群、群落和生态系统的一组是:D ①生活在人的大肠内的细菌等生物②某一池塘中的全部鱼类 ③肺炎患者肺部的肺炎双球菌④一根枯木及枯木上所有生物 A.①②④B.②③④C.③②①D.③①④ 3、生物学基础研究成果已应用到医药.农药等领域。下列叙述中,符合这种情况的是: ①根据DNA分子的特异性,进行亲子鉴定 ②基于细胞呼吸的原理,采用套种、合理密植、大棚种植等措施增加作物产量 ③在细胞膜的功能研究基础上,开发人工“肾”治疗尿毒症 ④根据染色体变异原理,培育出三倍体无子西瓜 A.①②③B.①②④C.①③④D.②③④ 4、生物繁殖的本质是基因复制,人类正利用这一点进行基因工程,从而产生了基因污染。基因污染是指在天然的生物物种基因中掺进了人工重组的基因,这些外来基因可随被污染生物的繁殖得到增殖,再随被污染生物的传播而发生扩散。根据以上叙述,下列对基因污染产生的原因表述不正确 ...的一项是:( B )A.基因工程间接导致了基因污染 B.基因工程是通过染色体重组发生基因交换,从而获得生物的新性状 C.基因工程对生物体作强制移植,完全打破了物种原有的屏障,破坏了生物原有的基因D.人类在发展基因工程作物时,没有充分考虑生物和环境影响的研究 5、水稻是我国主要的粮食作物之一。下列有关于水稻生命活动的叙述,正确的是(D )A.对水稻进行根瘤菌拌种,有利于水稻生物对N2的利用 B.水稻叶片的维管束鞘细胞中含有叶绿体,能固定二氧化碳并形成淀粉 C.硅元素能在水稻体内大量积累,该事实说明硅是水稻必需的大量元素

(完整)高三英语模拟试题及答案,推荐文档

高三英语模拟试题及答案 第一节 听下面5段对话。每段对话后有一道小题,从每题所给的A、B、C三个选项中选出最佳选项。听完每段对话后,你将有10秒钟的时间来回答有关小题和阅读下一小题,每段对话你将听一遍。 1.What does the man want to borrow? A.A pencil. B.An eraser. C.A pen. 2.What is the woman doing now? A.Eating. B.Going home. C.Having group study. 3.What does the man have for earthquake preparation? A.A candle. B.A radio. C.A flashlight. 4.Where does the conversation most probably take place? A.In a bank. B. In a hotel. C.In a store. 5.Where will the man go for his holiday?

A.Brazil. B.Denmark. C. Greece. 第二节 听下面4段对话或独白。每段对话或独白后有几道小题,从每题所给的A、B、C三个选项中选出最佳选项。听每段对话或独白前,你将有5秒钟的时间阅读每小题。听完后,每小题将给出5秒钟的作答时间。每段对话或独白你将听两遍。 听第6段材料,回答第6至7题。 6.When does the supermarket close on Sundays? A.At 5:00 pm. B.At 7:00 pm. C. At 8:00 pm. 7.What have the two speakers decided to do now? A.Go shopping. B.Take a walk. C.Have dinner 听第7段材料,回答第8至9题。 8.Why does the man make the call? A.To make a booking. B.To make a suggestion. C.To make an appointment. 9.When will the man return from London? A.On March 10. B. On March 12. C. On March 22.

2021年高三生物普通高等学校招生全国统一考试模拟卷

高三生物试题 一、选择题:本题14小题,每小题2分,共28分。每小题给出的四个选项中,只有一个选项是最符合题目要求的。 1.核酶是一类具有催化功能的单链RNA分子,可降解特定的mRNA序列。下列关于核酶的叙述,正确的是 A.核酶与脂肪酶仅有三种元素相同 B.核酶的基本单位是氨基酸 C.核酶可降低化学反应所需活化能 D.核酶不具有专一性和高效性 2.下列有关生物实验所涉及的仪器、试剂及技术的说法正确的是 ①脂肪的鉴定②噬菌体侵染细菌实验③证明DNA半保留复制 ④光合色素提取和分离⑤有丝分裂的观察实验⑥DNA的粗提取与鉴定 A.①②⑤均需使用光学显微镜 B.④⑥均需使用无水乙醇 C.②③均需使用离心技术 D.②③⑤均需使用同位素标记法 3.某种铁线莲的根茎可作中药,有重要经济价值。下表为不同遮光处理对其光合作用影响的结果, 相关叙述正确的是 B.叶绿素含量与净光合速率呈正相关 C.叶绿素a/b可作为其利用弱光能力判断指标 D.遮光90%时,铁线莲不进行光合作用 4.黄曲霉毒素主要是由黄曲霉菌产生的可致癌毒素,其生物合成受多个基因控制,也受温度、pH等 因素影响。下列选项正确的是 A.黄曲霉菌能否产生黄曲霉毒素属于相对性状 B.温度、pH等环境因素不会影响生物体的表现型 C.不能产生黄曲霉毒素的菌株的基因型都相同 D.黄曲霉毒素能够致癌属于生物的表现型 5.II型糖尿病患者体内的胰岛素浓度比正常人高,但摄入糖后,体内血糖浓度很难降至正常水平,

导致患者尿中出现葡萄糖。下列叙述错误的是 A.患者摄糖后血糖水平高的主要原因是胰高血糖素分泌量增多 B.患者细胞膜上的胰岛素受体可能受损而导致胰岛素含量升高 C.患者的原尿中葡萄糖未能被完全重吸收会导致尿量增加 D. 患者难以通过注射胰岛素的治疗方法使血糖恢复正常值 6.超氧化物歧化酶(SOD )是一种源于生命体的活性物质,在生活实践中有非常重要的应用价值。下图为人工培育含SOD 植物新品种的过程,相关叙述正确的是 A.①过程中最常用的方法是采用显微注射技术将SOD 基因导入植物细胞 B.②、③分别表示脱分化、再分化,两个过程不需要无菌操作也可完成 C.SOD 催化O 2形成H 2O 2的机制是为该反应提供活化能 D.该育种方式利用了细胞工程和基因工程,能体现细胞的全能性 7.美洲钝眼蜱携带多种病菌,只要被它咬过的人吃到红肉,就会产生过敏反应,但吃白肉不发生过敏反应。据调查红肉中含有α-半乳糖甘酵素的成分,下列说法错误的是 A.被美洲钝眼蜱咬过后人体会产生抗α-半乳糖甘酵素的抗体 B.美洲钝眼蜱的唾液中可能含有α-半乳糖甘酵素 C.过敏反应特点是发作迅速、反应强烈、消退较快 D.白肉中同样含有α-半乳糖甘酵素 8.豌豆蚜是利马豆的主要害虫,蝉大眼蝽可取食利马豆和豌豆蚜。研究人员施用蔬果剂处理去除部分豆荚后,检测两种动物密度的变化,结果见下表(单位:个/株,蔬果剂对以上动物无危害)。下列分析错误的是 A.用样方法对利马豆种群密度进行调查 B.施蔬果剂后豌豆蚜种群数量将呈S 型增长 C.该生态系统蝉大眼蝽属于第二、三营养级 D.据表数据可知,蝉大眼蝽主要取食豌豆蚜 9.将某种酶运用到工业生 产前,需测定使用该 物种 分组 第7天 第14天 第21天 蝉大眼蝽 对照组 0.20 0.62 0.67 实验组 0.20 0.10 0.13 豌豆蚜 对照组 2.00 4.00 2.90 实验组 2.00 8.70 22.90

2019年山东省高考生物模拟试题与答案

2019年山东省高考生物模拟试题与答案 (试卷满分90分,考试时间40分钟) 一、选择题:本题共6个小题,每小题6分,共36分。在每小题给出的四个选项中,只有一项是符 合题目要求的。 1.下列实验材料的选择理由不合理的是 A. 恩格尔曼选择水绵的原因之一是水绵具有易于观察的椭球形叶绿体 B. 比较H2O2酶在不同条件下的分解实验中,选择肝脏研磨液的理由是含有过氧化氢酶 C. 在探究细胞呼吸方式时选择酵母菌的理由是它属于兼性厌氧菌 D. 孟德尔选择豌豆的理由之一是豌豆属于自花传粉、闭花受粉植物 2. 如图为某人被狗伤后的处理和治疗情况,下列叙述不正确的是 A. 清理伤口能减少人被狂犬病病毒感染的机会 B. 不包扎能降低被厌氧菌感染的风险 C. 注射狂犬病免疫球蛋白可使体内迅速产生抗原-抗体反应 D. 注射狂犬疫苗目的是刺激体内记忆细胞增殖分化 3. 己知一批基因型为AA和Aa的豌豆种子,其数目之比为2:1。将这批种子种下,自然状态下 (假 设结实率相同)其子一代中基因型为AA、Aa、aa的种子数之比为 A. 9:2:1 B. 9:6:1 C. 5:2:1 D. 4:4:1 4.下列关于植物激素的说法,错误的是 A.赤霉素既可以促进细胞伸长,也可以促进种子萌发和果实发育 B.脱落酸主要在根冠和萎蔫的叶片中合成 C.细胞分裂素主要由茎产生,能促进细胞的分裂和分化 D.高浓度的乙烯可能会抑制生长素促进细胞伸长的作用 5.下列有关有丝分裂的叙述,正确的是 A.在高倍显微镜下观察处于有丝分裂中期的植物细胞,能看到的结构是细胞壁、染色体、纺锤体和核膜 B.在动物细胞有丝分裂前期,两个中心粒倍增形成两组中心粒并发出纺锤丝

高三英语模拟试题

高三英语模拟试题 (满分135分,考试时间120分钟) 一、语言知识及应用(共两节,满分45分) 第一节完型填空(共15小题;每小题2分,满分30分) 阅读下面短文,掌握其大意,然后从1---15各题所给的A、B、C和D项中,选出最佳选项。 Exam anxiety is something that almost every person experiences during his or her student life. Little anxiety actually helps one __(1)__ and work hard for the exams. However, if students spend all their time in feeling __(2)__ , a lot of valuable study time would be lost. In this competitive world, __(3)__ cause a lot of nervousness in students. For some, exam anxiety encourages them to work hard, while for others it may be the root cause for poor performance, leading to academic __(4)__ and lack of confidence. In fact, some students are anxious by nature and easily get nervous when they face a(n) ___(5)___ situation. They will think __(6)__ even if they have prepared well. They fear that they may __(7)__ what they have studied, and when it is too much, their __(8)__ is likely to come true. One of the most important methods of __(9)__ exam anxiety is to prepare well in advance. Studying regularly for a few hours every day helps increase the __(10)__ of students. If students are not able to handle anxiety or nervousness, they could talk to their teachers, parents, friends or instructors. __(11)__ should also avoid giving pressure to their kids to do well. Creating a peaceful and __(12)__ atmosphere at home can be greatly helpful. To __(13)__ and sleep properly is also important. Students tend to avoid sleep and starve themselves due to anxiety, but it is __(14)__ to their academic performance and health. It’s better that students should plan their time well and take proper breaks between studying. They should always remember to set aside some time for their __(15)__ since some entertainment helps them relax and concentrate. 1. A. concentrate B. relax C. succeed D. experience 2. A. curious B. confident C. anxious D. calm 3. A. plans B. breaks C. jobs D. exams 4. A. failure B. achievement C, preparation D. performance 5. A. peaceful B. stressful C. natural D. avoidable 6. A. positively B. confidently C. intentionally D. negatively 7. A. remember B. forget C. learn D. lose 8. A. fear B. dream C.experience D. competition 9. A. increase B. feeling C. avoiding D. creating 10. A. relaxation B. pressure C. nervousness D. confidence 11. A. Teachers B. Parents C. Friends D. Instructor 12. A. relaxing B. exciting C. depressing D. worrying 13. A. learn B. play C. rest D. eat 14. A. helpful B. harmful C. important D. useless 15. A. studies B. situations C. hobbies D. meals 第二节语法填空(共10题;每小题1.5分,满分15分) 阅读下面短文,按照句子结构的语法性和上下文连贯的要求,在空格处填入一个适当的词或使用括号中词语的正确形式填空。

【附20套高考模拟试题】2020年上海中学高考英语模拟试卷(2)含答案

2020年上海中学高考英语模拟试卷(2) 第一部分(共20小题每,小题1.5分,满分30分) 1..I didn’t ________ having to do the cooking myself, or I would have learnt one or two dishes from my mom. A.expect B.anticipate C.forecast D.preview 2.— How do you think I can make up with Jack? — Set aside _______ you disagree and try to find _______ you have in common. A.what; what B.what; where C.where; what D.where; whether 3.You ________ have booked the tickets in advance; there were plenty left. A.needn’t B.can’t C.shouldn’t D.mustn’t 4.Contrary to po pular belief, taking a walk immediately after meals doesn’t _______ do good to our health. A.necessarily B.specially C.directly D.constantly 5.________ you recognize an idiom when it is being used, it is easy to misunderstand what you read or hear. A.Unless B.After C.Once D.Since 6._______, the dancers practise hard to make their dreams come true. A.Instead of being disabled B.Being disabled C.Disabled as they are D.In case of being disabled 7.—Don’t make a special journey to pick up the laundry for me. —It’s OK. I ________ to the shop anyway. A.was going B.will have gone C.have gone D.will be going 8.I’m sure that your letter will get _____attention. They know you’re waiting for the reply. A.continued B.immediate C.careful D.general 9.The shocking news made me realize ______ terrible problems we would face. A. that B.how C.what D.why 10.By the time we ________ from our school, we have been close friends for more than ten years. A.graduated B.will graduate C.are graduating D.graduate 11.If it had not been for the heroes’ contributions and sacrifices, we _____such a happy life. A.wouldn’t have led B.wouldn’t be leading C.haven’t led D.are not leading 12.Tom looked at Jenny, with tears _______ his eyes, and shouted out the words _______ in his heart for years.

高三生物模拟试题带答案

1.下列有关细胞结构和功能的叙述,错误的是( ) A.细胞的功能绝大多数基于化学反应,这些反应发生于细胞的特定区域 B.经胞吐方式运出细胞的不都是大分子也有小分子 C.经高尔基体加工的蛋白质可以留在细胞内发挥作用 D.神经纤维内外两侧的Na+浓度差是依靠其离子通道维持的 2.右图是研究物质A和物质B对某种酶催化活性影响的曲线。下列叙述错误的是( ) A.底物浓度的高低不会改变酶的催化活性 B.增大底物浓度不能消除物质A对该种酶的影响 C.增大底物浓度可以消除物质B对该种酶的影响 D.物质B能通过破坏酶的空间结构使酶变性而降低反应速率 3.下列关于动物细胞有丝分裂的叙述,正确的是( ) A.分裂间期有核DNA和中心体的复制 B.分裂间期核DNA含量和染色体组数都加倍 C.纺锤体形成于分裂前期,消失于分裂后期 D.染色单体形成于分裂前期,消失于分裂后期 4.组织液中K+浓度急速降低到一定程度会导致膝跳反射减弱。下列解释合理的是( ) A.传出神经元兴奋时膜对Na+的通透性增大B.传出神经元兴奋时膜对K+的通透性增大C.可兴奋细胞产生的动作电位的峰值增大D.可兴奋细胞静息电位的绝对值增大 5.下列关于种群、群落和生态系统的叙述,正确的是( ) A.五点取样法适合调查灌木类行道树上蜘蛛的种群密度 B.就食性而言,杂食性鸟类的数量波动小于其他食性的鸟类 C.就生态系统结构而言,生态瓶的稳定性取决于物种数 D.变色龙变化体色,主要是向同类传递行为信息 6.生物体内某基因被选择性表达过程如右图所示。下列有关叙述,正确的是( ) A.在解旋酶作用下DNA分子双螺旋解开 B.转录区域DNA的U应与RNA的A配对 C.该过程不可发生在真核细胞的细胞核中 D.该mRNA翻译出的两条肽链氨基酸数量不同 1.下列有关生物体内的物质运输的叙述,正确的是() A.细胞内囊泡的运输过程中存在囊泡膜与靶膜的识别,这可能与囊泡膜上的蛋白质有关B.氨基酸的跨膜运输和被转运到核糖体上都离不开载体蛋白 C.蛋白质可通过核孔自由进出细胞核 D.人体内的细胞都是通过协助扩散的方式吸收葡萄糖的

2021高三英语模拟试题经典模拟试卷

诸城一中慈海复读学校英语学科模拟题 2020.3 英语 注意事项: 1.答卷前,考生务必将自己的姓名、考生号等填写在答题卡和试卷指定位置上。 2.回答选择题时,选出每小题答案后,用铅笔把答题卡上对应题目的答案标号涂黑。如需改动,用橡皮擦干 净后,再选涂其他答案标号。回答非选择题时,将答案写在答题卡上。写在本试卷上无效。 3.考试结束后,将本试卷和答题卡一并交回。 第一部分阅读(共两节,满分50分) 第一节(共15小题;每小题 2.5分,满分37.5分) 阅读下列短文,从每题所给的A、B、C、D四个选项中选出最佳选项。 A Some of the greatest scientists of all time are women who have made important discoveries in a variety of contributions.Our list fields in science.Several of their contributions throughout history are even more than men’s of the most famous female scientists below are organized in order of popularity so you can read about the advancements that they made. Marie Curie(1867-1934) Famous For:Work on radioactivity Marie Curie was the first woman to win the Nobel Prize and the only woman to win this award in two fields: Physics and Chemistry.She discovered polonium and radium and her work helped with the creation of X-rays. Jane Goodall(1934) Famous For:Primate(灵长类)studies JaneGoodall is known world-wide for her groundbreaking studies on primates.She is considered as the top expert on chimps in the world and is perhaps best known for her45-year study on the social lives of theseanimals in Tanzania. Rita Levi-Montalcini(1909-2012) Famous For:Nerve growth studies Rita Levi-Montalcini was a neurologist(神经病学家)who won the Nobel Prize in Physiology or Medicine in 1986for her findings in Nerve Growth Factor(NGF).She was the first Nobel prize winner to live past her100th birthday. Lise Meitner(1878-1968) Famous For:Work on radioactivity and nuclear physics Lise Meitner was a key member of a group that discovered nuclear fission(裂变).One of her colleagues,Otto get the award is considered to be a huge error by Hahn,was given the Noble Prize for this work.That Meitner didn’t the Nobel committee.

2018高考高三生物模拟试题及答案

高三理综(生物)高考模拟试题(六) 一、选择题:(共6小题,每小题6分,共36分。每小题只有一个选项符合题目要求) 1.生物膜是细胞的重要结构,许多代谢反应可以在生物膜上进行。下列相关叙述错误的是( ) A.细胞生物膜的主要组成成分是磷脂和蛋白质 B.叶绿体内膜上含有多种光合色素,能够吸收并转化光能 C.线粒体内膜可以进行有氧呼吸第三阶段的反应 D.有丝分裂过程中,核膜的消失与形成分别发生在前期和末期 2.将芹菜叶片置于一定浓度的KNO3溶液中,鲜重变化与时间关系如图所示。下列有关叙述正确的是( ) A.本实验可证明K+、3 NO-的跨膜运输方式与水的跨膜运输方式不同 B.0~8 min内,芹菜叶肉细胞的相对表面积增大 C.15 min后,芹菜叶肉细胞鲜重不再增加,说明细胞内外浓度相等 D.芹菜叶肉细胞从8 min开始吸收无机盐离子,使细胞液浓度大于外界溶液浓度 3.图甲表示镰刀型细胞贫血症的发病机理,图乙表示基因型为AABb的生物的一个体细胞有丝分裂过程中一条染色体上的基因,图丙表示两种类型的变异。下列说法正确的是( ) A.镰刀型细胞贫血症是由基因突变造成的,在光学显微镜下观察细胞无法判断是否患病B.图甲中转运缬氨酸的tRNA上的反密码子为GUA C.图乙中两条姐妹染色单体上的基因不同是基因突变或交叉互换造成的 D.图丙中①属于基因重组,②属于染色体结构变异 4.一个患某遗传病(由一对等位基因控制)的女性患者甲和一个表现正常的男性结婚后,生了一儿一女,且都患该遗传病。下列有关叙述正确的是( ) A.女性患者甲和该表现正常的男性都是纯合子 B.该遗传病可能是伴X染色体隐性遗传病 C.患该遗传病的子女一定可以从女性患者甲获得致病基因 D.该遗传病在后代子女中的发病率相同5.某人去医院抽血化验体内甲状腺激素与促甲状腺激素的含量,结果发现甲状腺激素水平明显低于正常值,促甲状腺激素水平明显高于正常值,下列表述错误的是( ) A.该个体一定会出现代谢活动增强、神经系统兴奋性增强等症状 B.甲状腺激素的分泌存在分级调节,促甲状腺激素可以促进甲状腺激素的分泌 C.该个体相关激素水平异常可能是由于缺碘引起 D.促甲状腺激素释放激素和甲状腺激素都能调节促甲状腺激素的分泌 6.下列关于生物学实验及研究方法的叙述,错误的是( ) A.用样方法调查蚜虫的种群密度时,取样的关键是随机取样 B.用标志重捕法调查某动物种群密度时,标志物部分脱落会使估算值偏大 C.用血细胞计数板观察酵母菌种群数量的变化,应先在计数室上滴加菌液,再盖上盖玻片D.研究土壤中小动物类群丰富度常用取样器取样的方法进行采集、调查 29.(9分)如图为某实验小组为研究细胞的结构和功能设计的四组实验,其他相关实验条件适宜。 请回答下列问题: (1)为了研究线粒体或叶绿体的功能,需要将细胞中的线粒体或叶绿体分离出来,常用的方法是法。 (2)图甲装置和图乙装置的实验现象有何区别?,请分析产生差异的主要原因:。 (3)图丙装置在适宜的光照下(填“能”或“不能”)产生氧气。若光照条件下突然停止二氧化碳供应,ATP的合成速率将(填“增大”、“不变”或“减小”)。 图丁装置同正常的细胞相比呼吸速率有何变化?,请分析其原 因:。 30.(10分)如图为人体的血糖调节模型,据图回答下列问题: (1)该血糖调节模型属于模型。图中下丘脑是血糖调节的中枢,同时也 是、的中枢。 (2)当机体血糖含量降低时,胰高血糖素分泌量增加,促进血糖升高,此时血糖的来源为。在血糖调节的过程中,胰岛素的作用结果会反过来影响胰岛素的分泌,

上海高考英语模拟试卷

2017届上海高三英语模拟试卷 II. Grammar and Vocabulary Section A Directions: After reading the passage below, fill in the blanks to make the passage coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form of the given word; for the other blanks, use one word that best fits each blank. A friendly dog (21)(name)Bonnie, who also happens to be deaf, is being praised by her owner for helping him catch a (22)(suspect) intruder in their home. Dan Strasser said he heard Bonnie (23)(run) around the living room at about 6 a.m. Saturday, so he got out of bed to see why she was so excited. He said Bonnie didn’t bark or bite like a guard dog, but (24) _____ she behaved was enough to alert him. When Strasser walked into the living room, he caught the intruder trying to steal his computer. The man took off, but (25)running out of the back door where he came in, he accidentally ran into the garage and was seized there. Strasser grabbed his gun and held the intruder in the garage while his girlfriend called 911. Police showed up and arrested the intruder,(26)they later identified as Thomas Lowell, who (27)(accuse) in court Monday of burglary (入室行窃) and possession of drug. He is due back in court on Oct. 2nd. Strasser said Lowell got in (28) the P.F. Productions back door, which he kept open at night (29) Bonnie could get into the backyard. He plans to keep it (30) _____(lock) from now on. Section B Directions: Fill in each blank with a proper word chosen from the box. Each word can be used only once. Note that there is one word more than you need. A.unmanned B. escape C. usually D. strike E. dropping F. blowing G. observed H. common I. specifically J. aimed K. involves A tornado is a violently turning tube of air suspended from a thick cloud. Tornadoes form when winds (31)in different directions meet in the cloud and begin to turn in circles. Tornadoes have been (32)on every continent except Antarctica. Weather experts say they are most (33)in the United States. Each year,the United States has more than one thousand tornadoes. These storms can happen at any time of the year. But most happen from late winter to the middle of summer. There is a second high season in November. Tornadoes can (34)with little or no warning. Weather experts operate warning systems to tell people about possible tornadoes. But the storms often move too fast for people to (35). Last year,tornadoes killed more than one hundred

相关文档
最新文档