一、单选题(共 10 道试题,共 50 分。)
V 1. 耗尽型MOSFET,栅源极之间的PN结()。
. 必须正偏
. 必须零偏
. 必须反偏
. 可以正偏、零偏或反偏
标准答案:
2. 放大器产生零点漂移的主要原因是()。
. 环境温度变化
. 电压增益太大
. 采用直接耦合方式
. 采用阻容耦合方式
标准答案:
3.
题目见图片
.
.
.
.
标准答案:
4. 集成运放中,由于温度变化引起的零输入对应非零输出的现象称为()。
. 交越失真
. 失调
. 零点漂移
. 饱和失真
标准答案:
5. 与甲类功率放大电路相比,乙类互补对称功率放大电路的主要优点是()。
. 失真度小
. 效率高
. 管耗低
. 无交越失真
标准答案:
6. 集成运放中,由于电路结构引起的零输入对应非零输出的现象称为()。
. 交越失真
. 失调
. 零点漂移
. 饱和失真
标准答案:
7. 设采用双电源互补对称电路,如果要求最大输出功率为5W,则每只功率JT的最大允许管耗至少应大于()。
. 1W
. 2.5W
. 5W
. 10W
标准答案:
8. 电流源电路的特点是直流电阻()。
. 大
. 小
. 恒定
. 不定
标准答案:
9. 共源放大电路的输入输出电压()。
. 同相
. 反相
. 相差90°
. 不确定
标准答案:
10. 乙类放大电路是指放大管的导通角等于()。
. 0°
. 90°
. 180°
. 360°
标准答案:
二、判断题(共 10 道试题,共 50 分。)
V 1. 电流源电路的特点是端口电流恒定,交流等效电阻大,直流等效电阻大。. 错误
. 正确
标准答案:
2. 与双极型晶体管比较,场效应管放大能力弱。
. 错误
. 正确
标准答案:
3. 克服交越失真的方法是采用乙类互补对称电路。
. 错误
. 正确
标准答案:
4. 零偏压电路适用于所有的场效应管放大电路。
. 错误
. 正确
标准答案:
5. 乙类功放电路在输出功率最大时,功率管消耗的功率最大。
. 错误
. 正确
标准答案:
6. 差分放大电路由双端输出变为单端输出,则共模电压增益将减小。
. 错误
. 正确
标准答案:
7. 甲类放大电路的效率最高可以达到78.5%。
. 错误
. 正确
标准答案:
8. 带Re电阻的长尾型差分放大电路,对于差模信号有很强的抑制能力。. 错误
. 正确
标准答案:
9. 在乙类互补推挽功率放大电路中,每只管子的最大管耗为0.5Pom。
. 错误
. 正确
标准答案:
10. 场效应管的漏极电流是由少子的漂移运动形成。
. 错误
. 正确
标准答案:
2016年6月大学英语四级真题及参考答案 Part ⅡListening Comprehension (听力部分共有两套) 四级第一套 Section A 1. C) Rising unemployment worldwide. 2. A) Many countries have not taken measures to create enough jobs. 3. B) Put calorie information on the menu. 4. A) They will be fined.C) They will get a warning. 5. D) Failure to integrate innovation into their business. 6. B) It is the creation of something new. 7. C) Its innovation culture. Section B 8. D) He does not talk long on the phone. 9. B) Talk at length. 10. A) He thought it was cool. 11. C) It is childish and unprofessional. 12. B) He is unhappy with his department manager. 13. A) His workload was much too heavy. 14. C) His boss has a lot of trust in him. 15. D) Talk to his boss in person first. Section C 16. A) The importance of sleep to a healthy life. 17. C) They get less and less sleep. 18. D) Their blood pressure will rise. 19. B) What course you are going to choose. 20. D) The personal statement. 21. C) Indicate they have reflected and thought about the subject. 22. B) It was built in the late 19th century. 23. D) They often broke down. 24. A) They were produced on the assembly line. 25. C) It marked a new era in motor travel. 四级第二套
北邮大学英语3(新)阶段作业一及答案 一、单项选择题(共10道小题,共100.0分) 1.The doctors________the medicines to the people in the flood area. A.distinguished B.chose C.annoyed D.distributed 2.We took out another________to expand our business. A.lend B.lent C.loan D.load 3.He couldn't________his father that John was telling the truth. A.convince
B.believe C.admit D.display 4.Facing the________situation the sales manager looked________. A.puzzling,puzzled B.puzzling,puzzling C.puzzled,puzzled D.puzzled,puzzling 5.Professor Zhang had two articles published in the_________periodical. A.studying B.learning C.learned D.studied
6.The University________him an honorary degree. A.drained B.awarded C.approached D.glimpsed 7.If you're late again you'll be________from your job. A.referred B.deserted C.omitted D.dismissed 8.They are________as the most promising table-tennis players. A.regarded
东北师范大学东师管理心理学16秋在线作业3 一、单选题(共10 道试题,共30 分。) 1. 对某职工工作效率低的原因分析中,得到的信息资料是(一致性低,一贯性高,区别性低),你认为应该归因于: A. 人(领导者) B. 自己 C. 环境 D. 自己于环境 正确答案: 2. 群体发展五阶段中的第二个阶段是: A. 形成阶段 B. 震荡阶段 C. 规范阶段 D. 解体阶段 正确答案: 3. 根据社会心理学家沙赫特的研究,四种不同条件对生产效率影响不同,其中生产效率最低的是: A. 高凝聚力积极诱导组 B. 高凝聚力消极诱导组 C. 低凝聚力积极诱导组 D. 低凝聚力消极诱导组 正确答案: 4. 下列哪项是正式群体中规定的群体? A. 利益型群体 B. 友谊型群体 C. 命令型群体 D. - 正确答案: 5. 管理心理学是一门带理论性和应用性的哪类学科? A. 自然 B. 社会 C. 中间 D. 人文 正确答案: 6. 下列哪种选项不是韦伯的科层体制特征? A. 不讲人情 B. 职位阶层
D. 传统权利 正确答案: 7. 由组织结构界定的,工作分配明确的群体是: A. 正式群体 B. 非正式群体 C. 利益群体 D. 友谊型群体 正确答案: 8. 态度形成的阶段是 A. 服从 B. 同化 C. 内化 D. 服从+同化+内化 正确答案: 9. 4.正式用“管理心理学”名称是: A. 1949年 B. 1952年 C. 1958年 D. 1960年 正确答案: 10. 什么是指在一种角色中,它的态度与实际行动保持一致? A. 角色知觉 B. 角色认同 C. 角色期待 D. 角色冲突 正确答案: 管理心理学16秋在线作业3 二、多选题(共10 道试题,共30 分。) 1. 波特与斯蒂尔斯在目标管理法中提出了六种目标属性不包括: A. 抽象性 B. 拒绝性 C. 及时反馈性、竞争性 D. - 正确答案: 2. 管理者的信息传递者的角色包括:
2016年12月英语四级真题及答案详解和听力原文第二套 2016年12月英语四级真题第二套 Part I Writing (30minutes) (请于正式开考后半小时内完成该部分,之后将进行听力考试) For this part, you are allowed 30 minutes to write an essay. Suppose you have two options upon graduation: one is to work in a state-owned business and the other in a joint venture. You are to make a choice between the two. Write an essay to explain the reasons for your choice. You should write at least 120 words but no more than 180 words. Part II Listening Comprehension (25 minutes ) Section A Directions: In this section, you will hear three news reports. At the end of each news report, you will hear two or three questions. Both the news report and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C). Then mark the corresponding letter on the Answer sheet1with a single line through the centre. Questions 1 and 2 are based on the news report you have just the heard . 1. A) It was dangerous to live in. C) He could no longer pay the rent. B) It was going to be renovated. D) He had sold it to the royal family. 2. A) A strike. B)A storm. C) A forest fire. D) A Terrorist attack. Questions 3 and 4 are based on the news report you have just heard . 3. A) They lost contact with the emergency department. B) They were trapped in an underground elevator. C) They were injured by suddenly falling rocks. D) They sent calls for help via a portable radio. 4. A) They tried hard to repair the accident. B) They released the details of the accident. C) They sent supplies to keep the miners warm. D) They provided the miner with food and water. Question s 5 to 7 are based on the news report you have just heard . 5. A) Raise postage rates. C) Redesign delivery routes. B) Improve its services. D) Close some of its post offices. 6. A) Shortening business hours. C) Stopping mail delivery on Saturdays. B) Closing offices on holidays. D) Computerizing mail sorting processes. 7. A) Many post office staff will lose their jobs. C) Taxpayers will be very pleased. B) Many people will begin to complain. D) A lot of controversy will arise. Section B Directions: In this section,you will hear two long conversations. At the end of each conversation,you will hear four questions. Both the conversation and the questions will be spoken only once. After you hear a question, you must choose the
一、单项选择题 1.首先提出“实验心理学”一词的学者是()。[统考2016年研] A.笛卡儿 B.冯特 C.铁钦纳 D.赫尔姆霍茨 【答案】B 【解析】实验心理学一词,是1862年由德国著名心理学家、实验心理学的先驱之一冯特(Wilhelm Wundt,1832~1920)在他的《感官知觉理论贡献》论文集的导言里最早提出来的。 2.在研究的某一时期内或特定时间点上发生的各种社会事件都可能影响被试的行为,从而混淆实验处理的效果。这种影响研究内部效度的因素属于()。[统考2016年研] A.历史因素 B.成熟因素 C.统计回归效应 D.研究变量与被试特点的交互作用 【答案】A 【解析】A项,历史因素是指在实验过程中,与实验变量同时发生,并对实验结果产生影响的特定事件。当出现这种情况时,研究者往往无法判断实验结果是由处理(自变量)引起的,还是由特定事件引出的。题干中某一时期社会事件的影响属于历史因素。B项,成熟因素指在实验过程中随着时间的延续,被试身心发生变化,如变得较为成熟,变得疲倦、对
实验失去兴趣或饥渴等。C项,统计回归效应指在实验处理前选择了在某一特征方面具有极端分数(高分或低分)的被试,实验处理后,测验分数有回归到平均数的趋向。D项,研究变量与被试特点的交互作用是指在实验设计中,如果研究者缺乏对变量进行精确控制,诸因素常会产生交互作用的效果。 3.既能比较直接地测量每个加工阶段的时间,也能比较明显地看出每个加工阶段特点的实验是()。[统考2016年研] A.库珀(L. Cooper)的心理旋转实验 B.汉密尔顿(W. Hamilton)的字母转换实验 C.克拉克(H. Clark)的句子-图形匹配实验 D.斯腾伯格(S. Sternberg)的短时记忆信息提取实验 【答案】B 【解析】Hamilton等(1977)、Hockey等人(1981)发展了一种新的实验技术,它被称为“开窗”实验。该实验能直接地测量每个加工阶段的时间,从而能明显地看出这些加工阶段的特点,就好像打开窗子一样,一目了然。“开窗”实验以字母转换实验为例,根据反应时间的数据揭示了完成字母转换作业的3个加工阶段。 4.功能性磁共振成像技术的缩写是()。[统考2016年研] A.PET B.fMRI C.MEG D.ERPs
大学英语三离线作业答 案 Document serial number【NL89WT-NY98YT-NC8CB-NNUUT-NUT108】
离线作业试卷列表2 一、单选? 1.第一部分:交际用语(共5小题;每小题3分,满分15分)- Would you be interested in seeing a film tonight- ____C______?分值:3 A. Not at all.??? B. Are you sure??? C. Great! I'd love to ??? D. You're welcome.???? 2.第一部分:交际用语(共5小题;每小题3分,满分15分)- Excuse me, could you tell me the way to P eople's Square- ____B______?分值:3 A. I don't understand you.??? B. Sorry, I'm a stranger here.??? C. Why don't you take a taxi??? D. Don't bother me.???? 3.第四部分:完形填空(共10小题;每小题1分,满分10分)30?C 分值:1 A. on mind??? B. in heart??? C. in mind??? D. on your mind???? 4.第四部分:完形填空(共10小题;每小题1分,满分10分)29 B?分值:1 A. with??? B. for??? C. to??? D. in???? 5.第四部分:完形填空(共10小题;每小题1分,满分10分)28 B?分值:1 A. impossible??? B. wonderful??? C. incapable??? D. practical???? 6.第一部分:交际用语(共5小题;每小题3分,满分15分)- I've got the first prize in the dancing ____C______?分值:3 A. You're welcome.??? B. It's very kind of you.??? C. Please accept my congratulations.??? D. Oh, really, I can't believe my ears.???? 7.第一部分:交际用语(共5小题;每小题3分,满分15分)- I've passed the ___D_______?分值:3 A. What a pity!??? B. I have the examination.??? C. Come on.??? D. Congratulations.???? 8.第一部分:交际用语(共5小题;每小题3分,满分15分)- I'm suffering from a ________A__?分值:3
2016年大学英语四级真题(第三套)完美Word打印版
2016年6月四级考试真题(第三套) Part Ⅰ Writing (30 minutes) Directions:For this part,you are all owed 30 minutes to write a l etter to express your thanks to one of your school teachers upon entering coll ege.You shoul d write at l east 120 words but no more than 180 words. Part Ⅱ Listening Comprehension (25 minutes) 说明:2016年6月四级真题全国共考了两套听力。本套(即第三套)的听力内容与第二套的完全一样,只是选项的顺序不一样而已,故在本套中不再重复给出。 Part Ⅲ Reading Comprehension (40 minutes) Section A Directions:In this section,there is a passage with ten blanks.You are required to select one word for each blank from a list of choices given in a word bank following the passage.Read the passage through carefully before making your choices.Each choice in the bank is identified by a l etter.Pl ease mark the corresponding l etter for each item on Answer Sheet 2 with a singl e line through the centre.You may not use any of the words in the bank more than once. Physical activity does the body good,and there’s growing evidence that it helps the brain too.Researchers in the Netherlands report that children who get more exercise,whether at school or on their own.26 to have higher GPAs and better scores on standardized tests.In a 27 of 14 studies that looked at physical activity and academic 28,investigators found that the more children moved.the better their grades were in school,29 in the basic subjects of math,English and reading. The data will certainly fuel the ongoing debate over whether physical education classes should be cut as schools struggle to 30 on smaller budgets.The arguments against physical education have included concerns that gym time may be taking away from study time.With standardized test scores in the U.S.31 in recent years,some administrators believe students need to spend more time in the classroom instead of on the playground.But as these findings show,exercise and academics may not be 32 exclusive.Physical activity can improve blood 33 to the brain,fueling memory,attention and creativity,which are34 to learning.And exercise releases hormones that can improve 35 and relieve stress,which can also help learning.So while it may seem as if kids are just exercising their bodies when they,re running around,they may actually be exercising their brains as well. A.attendance B.consequently C.current D.depressing E.dropping F.essential G.feasible H.flow I.mood J.mutually K.particularly L.performance M.review N.survive O.tend Section B Directions:In this section,you are going to read a passage with ten statements attached to it.Each statement contains information given in one of the paragraphs.Identify the paragraph from which the information is derived You may choose a paragraph more than once.Each paragraph is marked with a l etter.Answer the questions by marking the corresponding l etter on Answer Sheet 2. Finding the Right Home—and Contentment,Too A.When your elderly relative needs to enter some sort of long.term care facility-a moment few parents or
权威师资优质教学博仁考研https://www.wendangku.net/doc/ae16502666.html, 2016年中科院心理学考研真题点评 博仁考研老师为大家点评中科院2016年心理学考研真题,希望对备考2017年心理学考研的同学复习都能有所帮助。中科院今年是第一次自主命题,与往年的统考试题相比,主观题难度有所增加,但是客观题的题量明显下降。 一、客观题难度下降、主观题难度增加 客观题由往年的单选65道单选题,10道多选题,变成今年自主命题后的21道选择题,而且没有了多选题,相比往年客观题难度有所下降。但是总体上还是注重对基础知识的考察。 只要考生理解了博仁考研推荐的参考书,掌握了博仁考研老师在强化班中重点讲解的知识点,那么提炼出简答题和论述题的答案还是比较轻松的。当然简单的背诵知识还是不够的,现在考题越出越灵活,比如2015年真题中对表象的考察,不仅要求考生答出心理旋转现象,而且需要答出实验逻辑,所以说这道题同时也在考察大家实验心理学的知识,所以考生在复习中,要从多个层面复习一个知识点,做到对知识点的真题透彻理解,而不仅仅是会背诵定义,理论。 我们对比了2014年、2015年主观题中各考试科目的分值比例。下面我们分科目,具体分析一下考点分布和考题特点。 主观题科目分布 题型简答题论述题及实验设计 2014年 5 3 2015年 5 3 2016年 6 3 二、注重基础知识的考察 纵观2016年的考题,虽然大部分是统计、测量和实验的内容,但是考察的知识点都是比较基础的内容,比如:请说明反应时相加因素法的逻辑?这道题比较简单,是实验心理学中非常经典的实验,对于相加因素法,大家也并不陌生,所以,基础知识比较扎实的话,不难解答。还有简答题是“简述样本均数的抽样分布规律?”这道题考察的是统计的内容,也是非常基础的知识点。更为基础的是“请说明什么是α错误和β错误,以医生给病人看病时什么时候犯α错误,什么时候犯β错误,为简单起见,假设医生做出的判断只有有病和无病。”假设检验中的一类错误和二类错误,是统计总的最为基础的部分。对于2017年的考生来说,一定要教材弄懂弄通,完全吃透,多做练习试题,经过无数人的亲身检验,证实题海战术
2016年6月18日大学英语四级真题答案与解析 写作 题目: Directions: For this part, you are allowed 30 minutes to write a letter to express your thanks to one of your friends who helped you most when you were in difficulty. You should write at least 120 words but no more than 180 words. 今年四级时隔九年之后首次考了一道应用文写作,虽然出乎意料,但是大家可以根据题干中的关键词“letter”迅速判断今年要写的是书信。书信本身难度不大,但是需要特别注意英文书信的书写格式。 一、四级书信格式要求 1、抬头:收件人的姓名 2、正文:三段式 3、落款:祝福(yours sincerely)写信人名 二、感谢信格式模板: Dear ______, I am writing to extend my sincere gratitude for __________________(感谢的原因). If it had not been for your assistance in __________________(对方给你的具体帮助), I fear that I would have been___________________(没有对方帮助时的后果). No one would disagree that it was you who___________________________(给出细节). Again, I would like to express my warm thanks to you! Please accept my gratitude. Best wishes. Yours sincerely, Li Ming
[0160]《财政与金融》 第一次作业 [单选题]5、下列行为中,属于增值税征税范围的是() A:供电局销售电力 B:房地产开发公司销售房屋 C:歌舞餐厅提供餐饮服务 D:咨询公司提供中介服务 参考答案:A [单选题]6、某零售商业企业为一般纳税人,月销售收入为29250元,该企业当月计税销售额为()元。A:25000 B:25884 C:27594 D:3524 参考答案:A [单选题]7、某外贸进出口公司当月从日本进口140辆小轿车,每辆海关的关税完税价格为8万元,已知小轿车关税税率为110%,消费税率为5%。进口这些轿车应缴纳()万元消费税。 A:61.6 B:123.79 C:56 D:80 参考答案:B [单选题]8、()是国债的产生和发展的根本原因。 A:调节投资结构 B:调节流通中的货币量 C:弥补财政赤字 D:筹集建设资金
参考答案:C [单选题]9、()是国有资产最重要、最主要的经营方式。 A:承包经营 B:股份制经营 C:租赁经营 D:外资经营 参考答案:B [单选题]10、财政分配的客体是()。 A:国家的职能 B:国民收入 C:国家的权力 D:国家的需要 参考答案:B [单选题]11、国家机关为居民或者单位提供某种特殊劳动所取得的手续费是()。A:税收收入 B:国有资产收入 C:债务收入 D:规费收入 参考答案:D [单选题]12、消费税主要采取在()环节计征。 A:流通 B:消费 C:生产或进口 D:出口 参考答案:C [单选题]13、国际税收是指() A:国家与国家之间的税务协调关系
B:国家与纳税人之间的税收征纳关系 C:国家与国家之间的税收分配关系 D:国家与纳税人之间的税收分配关系 参考答案:C [单选题]14、一国政府在对本国居民的国外所得征税时,允许其将该所得负担的外国税款作为费用从应税国外所得中扣除,只对扣除后的余额征税,这种方法称为()。 A:抵免法 B:免税法 C:低税法 D:扣税法 参考答案:D [单选题]15、进口应税消费品,按照组成计税价格和规定的税率计算应纳消费税,其组成计税价格的公式是()。 A:组成计税价格=关税完税价格+关税 B:组成计税价格=关税完税价格+关税+增值税 C:组成计税价格=(关税完税价格+关税)÷(1-消费税税率) D:D.组成计税价格=(关税完税价格+关税)÷(1+消费税税率) 参考答案:C [单选题]l、财政产生的政治条件是() A:产生了氏族议事会 B:生产力的发展和剩余产品的出现 C:出现了阶级 D:国家的产生 参考答案:D [单选题]2、资本主义国家财政收入主要来自() A:税收 B:田赋
:015a758f-f5dd-4ea7-9d36-4dd8921c863f :aaa63624-22b1-4359-8d29-c09559fb8318 青少年心理学16秋在线作业1 1:()是人类思维的最高形式. A:具体形象思维 B:抽象逻辑思维 C:辩证逻辑思维 D:形式逻辑思维 正确答案:C 2:本我是个性结构的基本因素,是最原始的,与生俱来的非理性因素,受()支配。A:实践原则 B:现实原则 C:快乐原则 D:理想原则 正确答案:C 3:一个男孩身高不如人,女孩面貌不如人等都会产生生理性的自卑或害臊,甚至很多人会怀疑自己有病,是()。 A:心理因素导致的压力 B:性成熟与性冲动导致的压力 C:体力、精力旺盛,无处发泄导致的压力 D:生理因素导致的自卑与害羞 正确答案:D 4:意志的特征有调节性、社会历史性和()。 A:敏感性 B:深刻性 C:规律的依存性 D:坚持性 正确答案:C 5:()是个性结构的基本因素,是最原始的,与生俱来的非理性因素,受快乐原则支配A:本我 B:自我 C:他我 D:超我 正确答案:A 6:美国心理学家()提出了智力的三维结构理论。 A:吉尔福特 B:杜威
D:詹姆斯 正确答案:A 7:()是指年龄相同或相近的儿童之间的一种共同活动并相互协作的关系。 A:友谊关系 B:朋友关系 C:同伴关系 D:人际关系 正确答案:C 8:在青少年的同伴交往中,会表现出的同伴地位有受欢迎的孩子、受忽视的孩子、()的孩子和有争议的孩子。 A:受尊重 B:遭拒绝 C:行为好 D:理智的 正确答案:B 9:格塞尔认为个体的生理和心理发展从一开始就是受基因控制的,他把这种通过基因来控制发展过程的机制定义为()。 A:成长 B:成熟 C:长成 D:生长 正确答案:B 10:男女生殖器官在胚胎时期已经形成,这种与生俱有的两性生殖器官的特征,称为()。A:第一体征 B:第一性征 C:个体特征 D:第二性征 正确答案:B 11:患者可以通过自我分析的方法回忆早年的生活经历,寻找出自己患异装癖的原因,然后对其原因进行分析,找到问题的症结的治疗方法是()。 A:行为疗法 B:认知疗法 C:精神分析疗法 D:来访者中心疗法 正确答案:B 12:道德概念的掌握、道德信念的形成和道德评价能力的发展是衡量青少年学生()形成和发展的主要标志。
2015年大学英语四级词汇表 abandon vt.丢弃;放弃,抛弃ability n.能力;能耐,本领abnormal a.不正常的;变态的aboard ad.在船(车)上;上船abroad ad.(在)国外;到处absence n.缺席,不在场;缺乏absent a.不在场的;缺乏的absolute a.绝对的;纯粹的absolutely ad.完全地;绝对地absorb vt.吸收;使专心abstract a.抽象的n.摘要abundant a.丰富的;大量的abuse vt.滥用;虐待n.滥用academic a.学院的;学术的academy n.私立中学;专科院校accelerate vt.(使)加快;促进acceleration n.加速;加速度accent n.口音,腔调;重音acceptable a.可接受的,合意的acceptance n.接受,验收;承认access n.接近;通道,入口accessory n.同谋,从犯;附件accident n.意外的;事故accidental a.偶然的;非本质的accommodate vt.容纳;供应,供给 accommodation n.招待设备;预定铺位 accompany vt.陪伴,陪同;伴随accomplish vt.达到(目的);完成accord vt.使一致;给予accordance n.一致;和谐;授予accordingly ad.因此,所以;照着account n.记述;解释;帐目accumulate vt.积累vi.堆积accuracy n.准确(性);准确度accurate a.准确的,正确无误的accuse vt.指责;归咎于accustom vt.使习惯accustomed a.惯常的;习惯的achieve vt.完成,实现;达到achievement n.完成;成就,成绩acid n.酸;酸的,酸性的acquaintance n.认识;了解;熟人acquire vt.取得;获得;学到acre n.英亩(=6.07亩) act vi.行动;见效n.行为 action n.行动;作用;功能 active a.活跃的;积极的 activity n.活动;活力;行动 actress n.女演员 actually ad.实际上;竟然 acute a.尖的,锐的;敏锐的 adapt vt.使适应;改编 add vt.添加,附加,掺加 addition n.加,加法;附加物 additional a.附加的,追加的 address n.地址;演说;谈吐 adequate a.足够的;可以胜任的 adjective n.形容词a.形容词的 adjust vt.调整,调节;校正 administration n.管理;管理部门 admire vt.钦佩,羡慕,赞赏 admission n.允许进入;承认 admit vt.承认;准许…进入 adopt vt.收养;采用;采取 advance vi.前进;提高n.进展 advanced a.先进的;高级的 advantage n.优点,优势;好处 adventure n.冒险;惊险活动 adverb n.副词 advertisement n.广告;登广告 advisable n.明智的;可取的 advise vt.劝告;建议;通知 aeroplane n.飞机 affair n.事情,事件;事务 affect vt.影响;感动 affection n.慈爱,爱;爱慕 afford vt.担负得起…;提供 African a.非洲的n.非洲人 agency n.经办;代理;代理处 agent n.代理人,代理商 aggressive a.侵略的;好斗的 agony n.极度痛苦 agreement n.协定,协议;同意 agriculture n.农业,农艺;农学 aid n.帮助,救护;助手 aircraft n.飞机,飞行器 airline n.航空公司;航线 airplane n.飞机 airport n.机场,航空站 alarm n.惊恐,忧虑;警报 alcohol n.酒精,乙醇 allow vt.允许,准许;任 alloy n.合金;(金属的)成色 alone a.单独的ad.单独地 alphabet n.字母表,字母系统 alter vt.改变,变更;改做 alternative n.替换物;取舍,抉择 although conj.尽管,虽然 altitude n.高,高度;高处 altogether ad.完全;总而言之 aluminium n.铝 amaze vt.使惊奇,使惊愕 ambition n.雄心,抱负,野心 ambulance n.救护车;野战医院 amongst prep在…之中(=among) amount n.总数;数量;和 ampere n.安培 amplify vt.放大,增强;扩大 amuse vt.逗…乐;给…娱乐 analyse vt.分析,分解,解析 analysis n.分析,分解,解析 ancestor n.祖宗,祖先 anchor n.锚vi.抛锚,停泊 ancient a.古代的,古老的 angel n.天使,神差,安琪儿 anger n.怒,愤怒vt.使发怒 angle n.角,角度 angry a.愤怒的,生气的 ankle n.踝,踝节部 announce vt.宣布,宣告,发表 announcer n.宣告者;播音员 annoy vt.使恼怒;打搅 annual a.每年的n.年报 anticipate vt.预料,预期,期望 anxiety n.焦虑,忧虑;渴望 anxious a.忧虑的;渴望的 anyway ad.无论如何 apart ad.相隔;分开;除去 apartment n.一套公寓房间 apologize vi.道歉,谢罪,认错 apology n.道歉,认错,谢罪 apparatus n.器械,仪器;器官 apparent a.表面上的;明显的 1
《大学英语(三)》在线作业题库 一、单选题(共 50 道试题,共 100 分。) 1. – Ami, I want this report typed today. – ( ). A. It'll be ready in the afternoon, sir B. I'd like you to help me C. I know nothing about the report D. Leave it to tomorrow 正确答案:A 2. He( )himself quickly to the new condition of his work. A. changed B. altered C. adjusted D. varied 正确答案:C 3. We( )the bathroom and plan( )the bedroom this year. A. painted…to paint B. is painting… painting C. paint… to paint D. have painted…to paint 正确答案:D 4. I don't think this kind of medicine has any( ). A. answer B. cause C. effect D. work 正确答案:C 5. We consider( )the instrument be adjusted each time it is used. A. that it necessary B. it necessary that C. necessary that D. necessary of it that 正确答案:B 6. – I wonder if you could help me. – ( ). A. I could B. Yes, I do C. No, not at all D. Of course 正确答案:D 7. Parliament didn't think the Prime Minister did enough in the improvement of fair employment, ( )he was asked to write to Parliament for further explanation. A. so B. therefore
2016年12月大学英语四级考试真题(第2套) (30 minutes) Directions: For this part, you are allowed 30 minutes to write an essay. Suppose you have twooptions upon graduation: one is to take a job in a company and the other to go to agraduate school. You are to make a choice between the two. Write an essay to explain thereasons for your choice. You should write at least 120 words but no more than 180words. Part Ⅱ Listening Comprehension (25 minutes ) Section A Directions: In this section, you will hear three news reports. At the end of each newsreport, you will hear two or three questions. Both the news report and thequestions will be spoken only once. After you hear a question, you mustchoose the best answer from the four choices marked A, B, C and D .Then mark the corresponding letter on Answer Sheet I with a single linethrough the centre. Questions 1 and 2 are based on the news report you have just heard. 1. A. To satisfy the curiosity of tourists. B. To replace two old stone bridges. C. To enable tourists to visit Goat Island. D. To improve utility services in the state. 2. A. Countless tree limbs. B. A few skeletons. C. Lots of wrecked boats and ships. D. Millions of coins on the bottom. Questions 3 and 4 are based on the news report you have just heard. 3. A. It suspended diplomatic relations with Libya. B. It urged tourists to leave Tunisia immediately. C. It shut down two border crossings with Libya. D. It launched a fierce attack against Islamic State. 4. A. Advise Tunisian civilians on how to take safety precautions. B. Track down the organization responsible for the terrorist attack. C. Train qualified security personnel for the Tunisian government. D. Devise a monitoring system on the Tunisian border with Libya. Questions 5 to 7 are based on the news report you have just heard. 5. A. An environment-friendly battery. B. An energy-saving mobile phone. C. A plant-powered mobile phone charger. D. A device to help plants absorb sunlight. 6. A. While sitting in their school's courtyard. B. While playing games on their phones. C. While solving a mathematical problem. D. While doing a chemical experiment. 7. A. It increases the applications of mobile phones.