英语一考试形式、考试内容与试卷结构
（一）考试形式
考试形式为笔试。考试时间为180分钟。满分为100分。
试卷包括试题册和答题卡。答题卡分为答题卡1和答题卡2。考生应将1~45题的答案按要求填涂在答题卡1上，将46~52题的答案写在答题卡2上。
（二）考试内容
试题分三部分，共52题，包括英语知识运用、阅读理解和写作。
第一部分英语知识运用
该部分不仅考查考生对不同语境中规范的语言要素（包括词汇、表达方式和结构）的掌握程度，而且还考查考生对语段特征（如连贯性和一致性等）的辨识能力等。共20小题，每小题0.5分，共10分。
在一篇240~280词的文章中留出20个空白，要求考生从每题给出的4个选项中选出最佳答案，使补全后的文章意思通顺、前后连贯、结构完整。考生在答题卡1上作答。
第二部分阅读理解
该部分由A、B、C三节组成，考查考生理解书面英语的能力。共30小题，每小题2分，共60分。
A节（20小题）：主要考查考生理解主旨要义、具体信息、概念性含义，进行有关的判断、推理和引申，根据上下文推测生词的词义等能力。要求考生根据所提供的4篇（总长度约为1600词）文章的内容，从每题所给出的4个选项中选出最佳答案。考生在答题卡1上作答。
B节（5小题）：主要考查考生对诸如连贯性、一致性等语段特征以及文章结构的理解。本部分有3种备选题型。每次考试从这3种备选题型中选择一种进行考查。考生在答题卡1上作答。
备选题型有：
1）本部分的内容是一篇总长度为500~600词的文章，其中有5段空白，文章后有6~7段文字。要求考生根据文章内容从这6~7段文字中选择能分别放进文章中5个空白处的5段。
2）在一篇长度约500~600词的文章中，各段落的原有顺序已被打乱，要求考生根据文章的内容和结构将所列段落（7~8个）重新排序，其中有
2~3个段落在文章中的位置已给出。
3）在一篇长度为500词的文章前或后有6~7段文字或6~7个概括句或小标题。这些文字或标题分别是对文章中某一部分的概括、阐述或举例。要求考生根据文章内容，从这6~7个选项中选出最恰当的5段文字或5个标题填入文章的空白处。
第 1 页 共 2 页 一、Translate the following words （每小题1分，共20分） 1. derive from 2. preservation 3. adventitious 4. mitochondria 5. multicellular 6. innovation 7. isolate from 8. contemplation 9. devoid of 10. deliberately 11. 吸收、同化 12. 胚胎 13. 甲烷 14.裸子植物 15. 完全变态 16. 异养生物 17.新陈代谢 18.光合作用 19.减数分裂 20.有丝分裂 二、Translate the following sentences （每小题5分，共30分） 1.All organisms are composed of one or more cells, within which the life process of metabolism and heredity occur. 2．Ecologists recognize that ecosystems are further influenced by global phenomena, such as climate patterns, wind currents, and nutrient cycles. 3．The object of taking a sample is to measure in a small population, the sample ，relevant characteristics of the large population from which it came. 4．每一种生物跟其他生物和物理环境的相互作用是如此之多，因此生物学家把生态学这样一门关于生物相互作用的科学分为四个层次：种群、群落、生态系统和生物圈。 5．地球上至少四百万种生命物种中仅仅百分之一是脊椎动物。 6. 达尔文，英国的博物学家，经过30年的研究和观察，在他50岁时写了一本著名的影响深远的书：物种起源。 三、Translate the following paragraph into Chinese （每小题15分，共30分） 1．There are two principal kinds of metamorphosis in insects: simple and complete. In simple metamorphosis, the wings, if present, develop externally during the juvenile stages: ordinarily no “resting ” stage exists before the last molt.. In complete metamorphosis, the wings develop internally during the juvenile stages and appear externally only during the resting stage that immediately precedes the final molt.. 安阳工学院生物学专业英语课程试卷 2011――2012学年第二学期（A ）
大学英语口语测试试题 1.Shopping 1)Do you enjoy shopping? Why or why not? I seldom go shopping. It takes too much time. I like to go shopping very much. It is so interesting. 2) What do you usually buy when you go shopping? I only shop for daily necessities, such as toothbrush, toothpaste, toilet paper, cleansing cream, soap, shampoo, washing powder… I like music/books so sometimes I go to campus bookstores to look for my favorite CDs/the recent bestsellers. 3) Where do you usually go shopping, supermarkets or department stores? Downtown or in campus stores ? I usually do my shopping at large supermarkets/campus stores/shops nearby since they often have good buys/it saves time. I enjoy shopping at supermarkets. I love to see shelf on shelf stacked with all kinds of delicious /nice things. Supermarkets are so convenient. You can get almost everything you want in a big supermarket. I hate shopping in a supermarket. It’s always so crowded/the quality of goods is questionable/not so good/ not guaranteed. I like going shopping in big department stores downtown because I think they offer a better service. 4)When you buy a dress or a coat, which do you give first priority to: color, price, quality, style or brand name? I think price/color/style/quality is the most important. I love to buy clothes that are in fashion but they are mostly too expensive for me. I love buying things when they are on sale and I often manage to get a good deal. 5) Do you enjoy bargaining? Are you good at it? I love sales/enjoy bargaining/am good at bargaining with street peddlers. I always/never ask for a discount. 2. Sports 1) Do you like sports? What is your favorite sport? I like swimming/jogging/fishing/tennis, etc. My favorite sport is basket/volleyball/football, etc. 2)Do you like jogging? Why or why not? Jogging is considered a healthy sport for both the young and the old/for people of all ages. Many people begin jogging because they believe it is a very good form of exercise/can make their hearts stronger / can help them lose weight. Jogging against the cold wind is also a test of one’s will power. 3)Why do people need to play sports? Playing sports can help us to relax. Sitting in a chair all day has made me very lazy. I can get my figure back if I play a sport. I can meet some new friends when I play sports.
大学英语读写译(1)期末测试题及答案1
大学英语读写译（一） 期末测试题（1） Part I. Reading Comprehension (50%) Section A. Skimming and Scanning (10%) Directions: In this part, you will have 15 minutes to go over the passage quickly and answer the questions on Answer Sheet. For questions 1-7, mark Y (for YES) if the statement agrees with the information given in the passage; N (for NO) if statement contradicts the information given in the passage; NG (for NOT GIVEN) if the information is not given in the passage. For question 8-10,complete the sentences with the information given in the passage. Spiders Spiders can be distinguished from other Arachnids because the prosoma (combined head and thorax) is only separated from the opisthosoma (abdomen) by a narrow waist, in other Arachnids the whole body appears to be much more of a single unit. All spiders produce
Unit1 她连水都不愿喝一口，更别提留下来吃饭了。 She wouldn't take a drink, much less would she stay for dinner. 他认为我在对他说谎，但实际上我讲的是实话。 He thought I was lying to him, whereas I was telling the truth. 这个星期你每天都迟到，对此你怎么解释？ How do you account for the fact that you have been late every day 他们利润增长，部分原因是采用了新的市场策略 The increase in their profits is due partly to their new market 这样的措施很可能会带来工作效率的提高。 Such measures are likely to result in the improvement of work efficiency. 我们已经在这个项目上投入了大量时间和精力，所以我们只能继续。 We have already poured a lot of time and energy into the project, so we have to carry on. Unit2 尽管她是家里的独生女，她父母也从不溺爱她。 Despite the fact that she is the only child in her family, she is never babied by her parents. 迈克没来参加昨晚的聚会，也没给我打电话作任何解释。 Mike didn't come to the party last night, nor did he call me to give an explanation. 坐在他旁边的那个人确实发表过一些小说，但决不是什么大作家。 The person sitting next to him did publish some novels, but he is by no means a great writer. 他对足球不感兴趣，也从不关心谁输谁赢。 He has no interest in football and is indifferent to who wins or loses. 经理需要一个可以信赖的助手，在他外出时，由助手负责处理问题。 The manager needs an assistant that he can count on to take care of problems in his absence. 这是他第一次当着那么多观众演讲。 This is the first time that he has made a speech in the presence of so large an audience. Unit3 你再怎么有经验，也得学习新技术。 You are never too experienced to learn new techniques. 还存在一个问题，那就是派谁去带领那里的研究工作。(Use an appositional structure.) There remains one problem, namely, who should be sent to head the research there. 由于文化的不同，他们的关系在开始确实遇到了一些困难。 Their relationship did meet with some difficulty at the beginning because of cultural differences. 虽然他历经沉浮，但我始终相信他总有一天会成功的。 Though he has had ups and downs, I believed all along that he would succeed someday. 我对你的说法的真实性有些保留看法。 I have some reservations about the truth of your claim. 她长得并不特别高，但是她身材瘦，给人一种个子高的错觉。 She isn't particularly tall, but her slim figure gives an illusion of height. Unit4
《大学英语 2 》复习资料 一、单词或短语英汉互译 1.将下列词语译成中文 (1)economist（2）goods（3 ）profit （4）consumer（5）Interest 1. 经济学家； 2. 商品; 3. 利润; 4. 消费者 5.利息 （6）charge（7 ）affect（8 ）industrious （9）package（10 ）machinery 6.收费 7.影响 8.勤劳的 9.包装10. 机械 （11）concern（12 ）furniture （13）strong-willed（14 ）snowstorm 11. 关心12. 家具 13. 意志坚强14. 暴风雪 （15）cosmetics 15. 化妆品 2.将下列词语译成英文 （16）投资（17）需求(18) 炊具 （19）市场（20）制造商 16.investment17. demand18. cooker
19. Market20.manufacturer (21) 破坏(22) 受益(23) 超过 (24)进口（25）资源 21.spoil22. Benefit23. Exceed 24. Import25.resource （26）条形码（27 ）结账 （28）以防万一 26. universal product code27. check out 28. In case （29）气候（30 ）免费 29.climate30. Free 二、单项选择题 1. Apparently, it wasn't an accident. Someone must have done it on(B). A. intention B. determination C. purpose D. reason 2. The young doctor could not sleep at night, the worsening condition of a patient(A)him. A. disturbing B. disturbed C. being disturbed D.to disturb 3. (D) Americans have different views on many issues,
以下为爱麟霖/(Curlylin)倾情奉献，需要的朋友可以参考一下 7. Friendship (Listening and Speaking Course, Unit 3; Integrated Course, Unit 2) 1) Do you have many friends? What kind of people do you want to make friends with? Why? Yes. I’d like to make friends with loyal people. In my opinion,a friend is a person who can share his/hers happiness with you, who can lend you a shoulder when you cry,who can give you a hand when you are in trouble without asking for anything in return. In a word,a friend in need is a friend indeed, I think a loyal people can do the things which were mentioned above for his/hers true friend. So I prefer to make friends with loyal people, and I also believe I am a loyal people who you can make friends with. 2) How do you make friends? Please comment on “a friend you buy isn’t worth the price”. First,I’d like to talk to him to find out whether we have the same interest with each other. If the answer is YES,then we have the foundation to develop a friendship. The next days, all we need to do is to treat each other by heart and soul. 3) How valuable is friendship in a person’s life? How can we keep friendship alive? As for me, I regard friendship as a very important part in my life.Just imagine a life,there’s no one to be your friend. What life could be if you had no friend to talk to , no friend to comfore you and cheer you up when you were having a hard time,no friend to lend you a hand when you needed help …… Life without friends is unthinkable ... We have to do hard work to build up and sustain our friendship. First, let your friends know that you really care about them.It’s important to give some cues to your friends. Be sure your friend knows that she is cared about.Second,try to be with your friends when they are in trouble when they need you. Keeping friendship alive is not only to say some sweet words,but need some real action. 4) What does friendship mean to you? What kind of friends do you think are true friends? It's a fantastic experience in whole of my life. Friendship to me is what water to fish.I can't live without a real friend. 2问见（1） 5) How can we get along well with other people? To begin with, we need to be honest with others and always say what we mean. Lies will surely make people stay far away from us in the long run. After all,honesty is the best policy. Second, we have to be humble enough. If we are proud in public, we can hardly win other's respect, not to mention "friendship" . Finally, we must not be selfish. We should learn how to show concern for others. As long as we abide[?'ba?d] by what is mentioned above, we will find it easy to get along well with others.
Unit1奔向更加光明的未来 1 下午好！作为校长，我非常自豪地欢迎你们来到这所大学。你们所取得的成就是你们自己多年努力的结果，也是你们的父母和老师们多年努力的结果。在这所大学里，我们承诺 将使你们学有所成。 2 在欢迎你们到来的这一刻，我想起自己高中毕业时的情景，还有妈妈为我和爸爸拍的合影。妈妈吩咐我们：“姿势自然点。” “等一等 , ”爸爸说，“把我递给他闹钟的情景拍下来。” 在大学期间，那个闹钟每天早晨叫醒我。至今它还放在我办公室的桌子上。 3 让我来告诉你们, 一些你们未必预料得到的事情。你们将会怀念以前的生活习惯，怀念父母曾经提醒你们要刻苦学习、取得佳绩。你们可能因为高中生活终于结束而喜极而泣，你 们的父母也可能因为终于不用再给你们洗衣服而喜极而泣！但是要记住：未来是建立在过 去扎实的基础上的。 4 对你们而言，接下来的四年将会是无与伦比的一段时光。在这里，你们拥有丰富的资源：有来自全国各地的有趣的学生，有学识渊博又充满爱心的老师，有综合性图书馆，有完备的运动设施，还有针对不同兴趣的学生社团——从文科社团到理科社团、到社区服务等等。你们将自由地探索、学习新科目。你们要学着习惯点灯熬油，学着结交充满魅力的人，学着 去追求新的爱好。我想鼓励你们充分利用这一特殊的经历，并用你们的干劲和热情去收获 这一机会所带来的丰硕成果。 5 有这么多课程可供选择，你可能会不知所措。你不可能选修所有的课程，但是要尽可能 体验更多的课程！大学里有很多事情可做可学，每件事情都会为你提供不同视角来审视世 界。如果我只能给你们一条选课建议的话，那就是：挑战自己！不要认为你早就了解自己对什么样的领域最感兴趣。选择一些你从未接触过的领域的课程。这样，你不仅会变得更加博学，而且更有可能发现一个你未曾想到的、能成就你未来的爱好。一个绝佳的例子就是时装设计师王薇薇，她最初学的是艺术史。随着时间的推移，王薇薇把艺术史研究和对时装的热爱结合起来，并将其转化为对设计的热情，从而使她成为全球闻名的设计师。 6 在大学里，一下子拥有这么多新鲜体验可能不会总是令人愉快的。在你的宿舍楼里，住在你 隔壁寝室的同学可能会反复播放同一首歌，令你头痛欲裂！你可能喜欢早起，而你的室友 却是个夜猫子！尽管如此，你和你的室友仍然可能成为最要好的朋友。如果有些新的经历让你感觉不那么舒心，不要担心。我保证快乐的经历会多于不快的经历。而且我保证几乎所有这些经历都会给你带来宝贵的经验教训，从而使你的生活更加丰富多彩。所以，带着热切的目光和欢乐的心情，勇敢向前去拥抱这些新的体验吧！ 7 我们相信，你们的自我发现之旅和对爱好的寻求带给你们的将不仅仅是个人的进步。我们相信，当你们成为我们的学者群体中的一员时，你们很快就会认识到，大学不仅提供大量自我充实的机会，同时也带来了责任。一位智者说过：“教育代代相传，它就是社会的灵魂。”你们是你们家庭辛勤劳动成果的传承者，也是无数前辈辛勤劳动成果的传承者。他们积累了知识，并把知识传递给你们，而这些知识正是你们取得成功所必需的。现在轮到你们了。你们会获取什么样的知识？你们会发现什么样的兴趣爱好？你们怎样做才能为你们的子孙后代创造一个强大昌盛的未来？ 8 我们很高兴能为你们人生旅途中这一重大阶段开启大门。我们很高兴你们将获得许多机会，也很高兴你们将作为社区、国家乃至世界的公民承担起应有的责任。欢迎你们！
A acceptor受体 acetate 醋酸盐；醋酸根 acetyl 乙酰基 ． actin 肌动蛋白 actinomycinD 放线菌素 D activation 活化；激活 active site活性中心adenine腺嘌呤 adenosine腺嘌呤核苷adenosyl腺苷的adenovirus腺病毒 adhering junctings粘着连接 adhesion粘着；附着adjacent毗邻的 adrenal 肾上腺的 ,肾上腺affinity亲和；吸引 agar 琼脂，洋菜 agarose 琼脂糖 agency 媒介 agent 剂 aggregate聚合体 albumin白蛋白，清蛋白 allelc等位基因 allele等位基因突变遗传因子 allosteric modification别构修饰 allosteric别构的Alzheimer ’s disease阿尔茨海默氏病amino 氨基的～acid氨基 酸 aminopeptidase 氨基肽酶 amphibian 两栖动物 amphipathic 两亲的两性的 amylase 淀粉酶 anaerobic 厌氧的 analysis 分析，分解 analyze 分析 anaphase ( 细胞分裂的 ) 后期 anaphase-promoting complex, APC 促后期复合物 雄激素 解剖学 阴离子的 适当的 近似地，大约 人工 天冬氨酸 星形(神经胶质 )， 不对称的 自动催化的 replicating sequence ARS 自主复制起序列 autophagy 自噬作用 axon 轴突 B bacteria细菌 bacterial artificial chromosome, BAC 细菌人工染 色体 bacteriophage噬菌体 basal cell carcinoma基层 细胞癌 base 碱基 basement membrane 基膜 bilayer双层 binal双重的，两倍的，孪生 的 binding 结合位点 blastocoele 囊胚腔 blastoderm 胚盘 blastomere 卵裂球 blastula 囊胚 C cancerous 癌的 capsid ( 病毒 ) 衣壳carbohydrate 碳水化合物， 糖类 carbonate碳酸盐 carboxy羧基 carboxylation羧化作用 carboxypeptidase羧肽酶 carcinogen致癌剂 carcinoma癌 cardiovascular心血管的 cell secretion细胞分泌 centrifuge离心机 cholesterol胆固醇 chromatid染色单体 chromatin染色质 chromatography层析 cis-acting element顺式autonomously 细胞 asymmetric autocatalytic artificial chromosome appropriate approximately 染色体 aspartic astrocyte anionic anatomy anarogen
1.How can we keep friendship alive. Friendship is absolutely crucial for us. We have to do hard work to build up and sustain friendship. Here are some important ways to keep friendship alive .First of all,let your friends know that you care about them. If you can't be there at the given moment, say something like, "I wish I could be with you. May I call you tomorrow? "Be sure your friend knows she's cared about.Second, try to be with your friends when they are in trouble. Remember troubled people are most in need of their friends to stay around. The last but not the least, keeping friendship alive is to say to your friends "I miss you and I love you ". Remember? 2.Is it right for college students to have tattoos? Nowadays many college students like to highlight their personalities, to be their own. They have taken special ways to show their personalities. For example, some college students who are tattooed think tattooing is cool and shows great personality. But teachers and parents do not think tattooing is right for students. They believe to be a student you should dress like a student--no tattoos, of cause. Some people even believe that those who are tattooed are not good students. As far as I am concerned, although many people can not accept students’ tattooing, nothing is wrong with tattooing. College students are grown-ups. They can tell right from wrong. If they want to be tattooed, just remember to tell them to select clean places, preferably with parental consents. 3.What do cultural difference mean ? Can you give some examples? Cultural differences mean differences among people in ways of thinking, life, aesthetic concepts, social practices, diet and etc. Let’s talk about, for example, eating habits in different areas. In China, people prefer vegetables and fruits, for the Chinese believe that such things are rich in vc, which are good to health. However, western people are more likely to eat meat. Known as having a good tradition of hospitality , Chinese people always greet their guests with warm hand. Chinese meal table normally is filled with delicious food, yet the host is used to saying " I am sorry. I don’t think the food is good enough today" and other courtesies. Host or hostess sometimes use their chopsticks to take food to the guest’s bowl, which is considered as a way to show hospitality in China. However, in western countries, people emphasize respect to individuality. At dinner, people eat whatever they like or we say they eat at their own will. 4.Do you consider your 18th birthday is one of the most important days in your life? Give reasons. Yes, 18th birthday is considered the most important. Each birthday means a new year. I am most concerned about my 18th birthday as it is a sign of adulthood, indicating that I am no longer a child, but one who can try to do things independently and should be reliable for his or her own actions as an adult. Since my eighteenth birthday, I am entitled to go shopping alone, to travel alone and to live independently. I still remembered my 18th birthday. After my birthday celebration, I suddenly felt grown up, both physically and mentally. Birthday to me is an important turning point, enabling me to learn and think independently. So far as I am concerned about each birthday, I usually feel better.
---------------------考试---------------------------学资学习网---------------------押题------------------------------ Unit1 奔向更加光明的未来 1 下午好！作为校长，我非常自豪地欢迎你们来到这所大学。你们所取得的成就是你们自己多年努力的结果，也是你们的父母和老师们多年努力的结果。在这所大学里，我们承诺将使你们学有所成。 2 在欢迎你们到来的这一刻，我想起自己高中毕业时的情景，还有妈妈为我和爸爸拍的合影。妈妈吩咐我们：“姿势自然点。”“等一等,”爸爸说，“把我递给他闹钟的情景拍下来。”在大学期间，那个闹钟每天早晨叫醒我。至今它还放在我办公室的桌子上。 3 让我来告诉你们,一些你们未必预料得到的事情。你们将会怀念以前的生活习惯，怀念父母曾经提醒你们要刻苦学习、取得佳绩。你们可能因为高中生活终于结束而喜极而泣，你们的父母也可能因为终于不用再给你们洗衣服而喜极而泣！但是要记住：未来是建立在过去扎实的基础上的。 4 对你们而言，接下来的四年将会是无与伦比的一段时光。在这里，你们拥有丰富的资源：有来自全国各地的有趣的学生，有学识渊博又充满爱心的老师，有综合性图书馆，有完备的运动设施，还有针对不同兴趣的学生社团——从文科社团到理科社团、到社区服务等等。你们将自由地探索、学习新科目。 你们要学着习惯点灯熬油，学着结交充满魅力的人，学着去追求新的爱好。我想鼓励你们充分利用这一特殊的经历，并用你们的干劲和
热情去收获这一机会所带来的丰硕成果。 5 有这么多课程可供选择，你可能会不知所措。你不可能选修所有的课程，但是要尽可能体验更多的课程！大学里有很多事情可做可学，每件事情都会为你提供不同视角来审视世界。如果我只能给你们一条选课建议的话，那就是：挑战自己！不要认为你早就了解自己对什么样的领域最感兴趣。选择一些你从未接触过的领域的课程。这样，你不仅会变得更加博学，而且更有可能发现一个你未曾想到的、能成就你未来的爱好。一个绝佳的例子就是时装设计师王薇薇，她最初学的是艺术史。随着时间的推移，王薇薇把艺术史研究和对时装的热爱结合起来，并将其转化为对设计的热情，从而使她成为全球闻名的设计师。 6 在大学里，一下子拥有这么多新鲜体验可能不会总是令人愉快的。在你的宿舍楼里，住在你隔壁寝室的同学可能会反复播放同一首歌，令你头痛欲1 / 11 裂！你可能喜欢早起，而你的室友却是个夜猫子！尽管如此，你和你的室友仍然可能成为最要好的朋友。如果有些新的经历让你感觉不那么舒心，不要担心。我保证快乐的经历会多于不快的经历。而且我保证几乎所有这些经历都会给你带来宝贵的经验教训，从而使你的生活更加丰富多彩。所以，带着热切的目光和欢乐的心情，勇敢向前去拥抱这些新的体验吧！ 7 我们相信，你们的自我发现之旅和对爱好的寻求带给你们的将不仅仅是个人的进步。我们相信，当你们成为我们的学者群体中的一员
Lesson One（4学时） Inside the Living Cell: Structure and Function of Internal Cell Parts 教学目的：使学生掌握细胞的组成结构（各种细胞器以及它们在细胞中的位置），以及结构与功能之间的关系。各细胞器及功能相关英语词汇以及主要用法。 教学重点：各细胞器的概念和功能，及相关英语词汇的掌握 教学难点：专业英语词汇的记忆 讲授方法：以学生翻译为主，老师讲解相关专业知识辅助学生理解 授课时间：3月22日；3月29日 教学内容： Cytoplasm: The Dynamic, Mobile Factory 细胞质：动力工厂 Most of the properties we associate with life are properties of the cytoplasm. Much of the mass of a cell consists of this semifluid substance, which is bounded on the outside by the plasma membrane. Organelles are suspended within it, supported by the filamentous network of the cytoskeleton. Dissolved in the cytoplasmic fluid are nutrients, ions, soluble proteins, and other materials needed for cell functioning. 生命的大部分特征表现在细胞质的特征上。细胞质大部分由半流体物质组成，并由细胞膜（原生质膜）包被。细胞器悬浮在其中，并由丝状的细胞骨架支撑。细胞质中溶解了大量的营养物质，离子，可溶蛋白以及维持细胞生理需求的其它物质。 The Nucleus: Information Central（细胞核：信息中心） The eukaryotic cell nucleus is the largest organelle and houses the genetic material (DNA) on chromosomes. (In prokaryotes the hereditary material is found in the nucleoid.) The nucleus also contains one or two organelles-the nucleoli-that play a role in cell division. A pore-perforated sac called the nuclear envelope separates the nucleus and its contents from the