《大学英语》第二次作
业答案
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《大学英语（三）》第二次作业答案
你的得分： 100.0
完成日期：2014年02月15日 18点05分
说明：每道小题括号里的答案是您最高分那次所选的答案，标准答案将在本次作业结束(即2014年03月13日)后显示在题目旁边。
一、单项选择题。本大题共30个小题，每小题 2.5 分，共75.0分。在每小题给出的选项中，只有一项是符合题目要求的。
1.
—Would you like to go skating with me?
—________________.
( C ) A.
Yes, I think so
B.
No, thanks
C.
Yes, I'd love to
D.
I'm afraid not
2.
—Would you like something to drink What about a cup of tea
—________________
( A ) A.
No, thanks.
B.
No, I wouldn't.
C.
Yes, I want.
D.
Yes, I like.
3.
—Hello, may I have an appointment with the headmaster?
—________________.
( C ) A.
Sorry, I don't know you
B.
No, you can't
C.
Certainly. Wait a minute, please
D.
Let me see
4.
—Why not join us in the game?
—________________.
( A ) A.
OK! I'm coming
B.
No, you do the same
C.
Oh, that's all right
D.
Don't mention it
5.
—Could I see your ticket please?
—________________
( D ) A.
I am not sure yet.
B.
I'd love one.
C.
I might be. Why?
D.
Here you are.
6.
—Do you think I could borrow your dictionary this weekend?
—Sorry, but ________________
( C ) A.
you can not have it right away.
B.
I'm sure you'll like it.
C.
I'm going to need it myself.
D.
the dictionary is just there.
7.
—Would you mind closing the window It is windy outside.
—________________
( A ) A.
Not at all.
B.
Sure, go ahead.
C.
Why not?
D.
Yes, I would.
8.
—Don't forget to come to my party this evening!
—________________
( B ) A.
I can't.
B.
I won't.
C.
I don't.
D.
I will.
9.
—This box is too heavy for me to carry it upstaris.
—________________.
( B ) A.
You may ask for help.
B.
I’ll give you a hand.
C.
Please do me a favor.
D.
I’d come to help.
10.
—Can I help you carry the bag?
—________________.
( D ) A.
Needn’t.
B.
you couldn’t do it.
C.
I could do it myself.
D.
Thank you, but I can manage it myself.
11.
_______ the War of Independence, the United States was an English colony. ( A ) A.
Before
B.
At
C.
In
D.
Between
12.
Every morning Mr. Smith takes a _______ to his office. ( D ) A.
20 minutes' walk
B.
20 minute's walk
C.
20-minutes walk
D.
20-minute walk
13.
They have learned about _______ in recent years.
( B ) A.
several hundreds English words
B.
hundreds of English words
C.
hundred of English words
D.
several hundred English word
14.
After the Minister of Education had finished speaking at the press conference, he was made _______ all sorts of awkward questions.
( D ) A.
answer
B.
answering
C.
answered
D.
to answer
15.
Nancy is _______ girl.
( D ) A.
a eighteen-year-old
B.
an eighteen-years-old
C.
a eighteen-years-old
D.
an eighteen-year-old
16.
The football game will be played on _______.
( C ) A.
June six
B.
six June
C.
the sixth of June
D.
the six of June
17.
You'd better _______ in bed. It's bad for your eyes.
( B ) A.
not to read
B.
not read
C.
don't read
D.
read
18.
Are you going to fix the car yourself, or are you going to have it _______
( D ) A.
fixing
B.
to fix
C.
fix
D.
fixed
19.
When will you finish _______ the outing for next Friday
( C ) A.
plan
B.
to plan
C.
planning
D.
planned
20.
It's _______ that he was wrong.
( C ) A.
clearly
B.
clarity
C.
clear
D.
clearing
21.
The patients are quite _______ to the nurses for their special care. ( D ) A.
enjoyable
B.
helpful
C.
confident
D.
grateful
22.
- It's a good idea. But who's going to _______ the plan?
- I think John and Peter will.
( A ) A.
carry out
B.
get through
C.
take in
D.
set aside
23.
Eggs, though rich in nourishments, have _______ of fat.
( C ) A.
a large number
B.
the large number
C.
a large amount
D.
the large amount
24.
The Japanese, _______ average, live much longer than the Europeans. ( D ) A.
with
B.
C.
to
D.
on
25.
She leaned _______ the wall while she was speaking to her friend.
( B ) A.
to
B.
against
C.
towards
D.
for
26.
As long as the sun shines, the earth will not run out of energy. The sun pours more energy on earth than we can ever use. Most of that energy comes to us as heat and light. Energy from the sun is called solar energy.
Anything to do with the sun is called "solar". The word began with the Roman word for the sun and their god of the sun, who was called Sol. Solar energy is a safe kind of energy. It doesn't make pollution or have dangerous leftovers. That is why scientists and investors are experimenting with ways of harnessing（治理利用）the sun to do some of the jobs fossil fuels have been doing.
But to make the sun do work like that, they have to solve some problems. They have to collect the sun's energy. Collecting sunshine is
not easy, unless you are a plant. Sunshine is not easy to store, either. You can't fill a tank with it or put it in the wood box. You can not move it through a pipe or a wire. You can not just turn it on.
(1)、What form does most of solar energy take to reach us?
( D ) A.
Light.
B.
Heat.
C.
gas.
D.
both A and B.
27.
As long as the sun shines, the earth will not run out of energy. The sun pours more energy on earth than we can ever use. Most of that energy comes to us as heat and light. Energy from the sun is called solar energy.
Anything to do with the sun is called "solar". The word began with the Roman word for the sun and their god of the sun, who was called Sol. Solar energy is a safe kind of energy. It doesn't make pollution or have dangerous leftovers. That is why scientists and investors are experimenting with ways of harnessing（治理利用）the sun to do some of the jobs fossil fuels have been doing.
But to make the sun do work like that, they have to solve some problems. They have to collect the sun's energy. Collecting sunshine is not easy, unless you are a plant. Sunshine is not easy to store, either. You can't fill a tank with it or put it in the wood box. You can not move it through a pipe or a wire. You can not just turn it on.
(2)、Where does the word "solar" come from?
( B ) A.
Greek.
B.
Roman.
C.
Old English.
D.
Chinese.
28.
As long as the sun shines, the earth will not run out of energy. The sun pours more energy on earth than we can ever use. Most of that energy comes to us as heat and light. Energy from the sun is called solar energy.
Anything to do with the sun is called "solar". The word began with the Roman word for the sun and their god of the sun, who was called Sol. Solar energy is a safe kind of energy. It doesn't make pollution or have dangerous leftovers. That is why scientists and investors are experimenting with ways of harnessing（治理利用）the sun to do some of the jobs fossil fuels have been doing.
But to make the sun do work like that, they have to solve some problems. They have to collect the sun's energy. Collecting sunshine is not easy, unless you are a plant. Sunshine is not easy to store, either. You can't fill a tank with it or put it in the wood box. You can not move it through a pipe or a wire. You can not just turn it on.
(3)、Which of the following is NOT true of solar energy?
( C ) A.
It is a safe energy.
B.
It is a green energy.
C.
It may cause pollution to the air.
D.
It is endless.
29.
As long as the sun shines, the earth will not run out of energy. The sun pours more energy on earth than we can ever use. Most of that energy comes to us as heat and light. Energy from the sun is called solar energy.
Anything to do with the sun is called "solar". The word began with the Roman word for the sun and their god of the sun, who was called Sol. Solar energy is a safe kind of energy. It doesn't make pollution or have dangerous leftovers. That is why scientists and investors are experimenting with ways of harnessing（治理利用）the sun to do some of the jobs fossil fuels have been doing.
But to make the sun do work like that, they have to solve some problems. They have to collect the sun's energy. Collecting sunshine is not easy, unless you are a plant. Sunshine is not easy to store, either. You can't fill a tank with it or put it in the wood box. You can not move it through a pipe or a wire. You can not just turn it on.
(4)、What are the problems facing scientists who want to use solar energy?
( D ) A.
It is not easy to collect.
B.
It is not easy to store.
C.
It is not easy to find out.
D.
both A and B.
30.
As long as the sun shines, the earth will not run out of energy. The sun pours more energy on earth than we can ever use. Most of that energy comes to us as heat and light. Energy from the sun is called solar energy.
Anything to do with the sun is called "solar". The word began with the Roman word for the sun and their god of the sun, who was called Sol. Solar energy is a safe kind of energy. It doesn't make pollution or have dangerous leftovers. That is why scientists and investors are experimenting with ways of harnessing（治理利用）the sun to do some of the jobs fossil fuels have been doing.
But to make the sun do work like that, they have to solve some problems. They have to collect the sun's energy. Collecting sunshine is not easy, unless you are a plant. Sunshine is not easy to store, either. You can't fill a tank with it or put it in the wood box. You can not move it through a pipe or a wire. You can not just turn it on.
(5)、What is the writer's purpose of writing the passage?
( A ) A.
To give a brief introduction to solar energy.
B.
To explain the reason why it is not easy to make solar energy.
C.
To give information about the advantages of solar energy.
D.
To give a brief introduction to the word "solar".
三、判断题。本大题共10个小题，每小题 2.5 分，共25.0分。
1.
A story is told about a soldier who was finally coming home after having fought in Vietnam. He called his parents from San Francisco. "Mom and Dad, I'm coming home, but I've a favor to ask. I have a friend. I'd like to bring him home with me."
"Sure," they replied, "we'd love to meet him."
"There's something you should know," the son continued, "he was injured pretty badly in the fighting. He stepped on a land mine（地雷） and lost an arm and a leg. He has nowhere else to go, and I want him to live with us."
"We're sorry to hear that, son. But, maybe we can help him find somewhere to live."
"No, Mom and Dad, I want him to live with us."
"Son," said the father, "you don't know what you're asking. Someone with such a handicap would be a terrible burden to us. We have our own lives to live, and we can't let something like this interfere with our lives. I think you should just come home and forget about this guy.
He'll find a way to live on his own."
At that point, the son hung up the phone. The parents heard nothing more from him. A few days later, however, they received a call from the San Francisco police. Their son had died after falling from a building. The police believed he had killed himself.
The grief-stricken（悲痛欲绝的） parents flew to San Francisco and were taken to the city morgue（太平间） to identify the body of their son. They recognized him, but to their horror they also discovered something they didn't know, their son had only one arm and one leg.
(1)、The soldier called his parents from San Francisco after having fought in Vietnam.
(正确)
2.
A story is told about a soldier who was finally coming home after having fought in Vietnam. He called his parents from San Francisco. "Mom and
Dad, I'm coming home, but I've a favor to ask. I have a friend. I'd like to bring him home with me."
"Sure," they replied, "we'd love to meet him."
"There's something you should know," the son continued, "he was injured pretty badly in the fighting. He stepped on a land mine（地雷） and lost an arm and a leg. He has nowhere else to go, and I want him to live with us."
"We're sorry to hear that, son. But, maybe we can help him find somewhere to live."
"No, Mom and Dad, I want him to live with us."
"Son," said the father, "you don't know what you're asking. Someone with such a handicap would be a terrible burden to us. We have our own lives to live, and we can't let something like this interfere with our lives. I think you should just come home and forget about this guy.
He'll find a way to live on his own."
At that point, the son hung up the phone. The parents heard nothing more from him. A few days later, however, they received a call from the San Francisco police. Their son had died after falling from a building. The police believed he had killed himself.
The grief-stricken（悲痛欲绝的） parents flew to San Francisco and were taken to the city morgue（太平间） to identify the body of their son. They recognized him, but to their horror they also discovered something they didn't know, their son had only one arm and one leg.
(2)、The soldier told his parents that he wanted them to meet his friend in the army.
(错误)
3.
A story is told about a soldier who was finally coming home after having fought in Vietnam. He called his parents from San Francisco. "Mom and Dad, I'm coming home, but I've a favor to ask. I have a friend. I'd like to bring him home with me."
《统计学》第二次作业 注：本次作业主要针对4、6、8章相关知识点。 一、单选题（共11个） 1. 直接反映总体规模大小的指标是（C ）。 A、平均指标 B、相对指标 C、总量指标 D、变异指标 2.计算结构相对指标时，总体各部分数值与总体数值对比求得的比重之和（C ）。 A、小于100% B、大于100% C、等于100% D、小于或大于100% 3.下列相对数中，属于不同时期对比的指标有（B ）。 A、结构相对数 B、动态相对数 C、比较相对数 D、强度相对数 4. 2010年某市下岗职工已安置了13.7万人，安置率达80.6%，安置率是（D ）。 A、总量指标 B、变异指标 C、平均指标 D、相对指标 5.根据同一资料计算的数值平均数通常是各不相同的，他们之间的关系是（D ）。 A. 算术平均数≥几何平均数≥调和平均数 B. 几何平均数≥调和平均数≥算术平均数 C. 调和平均数≥算术平均数≥几何平均数 D. 没有关系 6.指数是表明现象变动的（B ） A. 绝对数 B. 相对数 C. 平均数 D. 抽样数 7.编制数量指标指数一般是采用（ A ）作为同度量因素。 A. 基期质量指标 B. 报告期质量指标
C. 基期数量指标 D. 报告期数量指标 8.价格下降后，花同样多的钱可以多购买基期商品的10%，则物价指数为（B ） A. 90% B. 90.9% C. 110% D. 111.1% 9.消费价格指数反映了（D ） A. 城乡商品零售价格的变动趋势 B. 城乡居民购买生活消费品价格的变动趋势 C. 城乡居民购买服务项目价格的变动趋势 D. 城乡居民购买生活消费品和服务项目价格的变动趋势 10.变量x与y之间的负相关是指（C ） A. x数值增大时y也随之增大 B. x数值减少时y也随之减少 C. x数值增大（或减少）y随之减少（或增大） D. y的取值几乎不受x取值的影响 11.如果相关系数为0，表明两个变量之间（ C ） A. 相关程度很低 B. 不存在任何关系 C. 不存在线性相关关系 D. 存在非线性相关关系 二、多选题（共7个） 1.时期指标的特点是指标的数值（ADE ）。 A、可以连续计数 B、与时期长短无关 C、只能间断计数 D、可以直接相加 E、与时期长短有关 2.在什么条件下，加权算术平均数等于简单算术平均数（ADE ）。 A、各组次数相等 B、各组变量值不等 C、变量数列为组距数列
Part 1 Multiple Choice (每小题：1 分) Directions: Choose the best answer from the four choices marked A, B, C and D. 1.Actually, humor helps make products more ________ to consumers. A. available B. sensible C. feasible D. accessible 2.Just as the increase of fax machines, wireless phones and personal computers has caused a shortage of phone numbers, heavy use of the Internet is _____ the supply of numerical (数字的) Internet addresses. A. draining B. soaking C. absorbing D. drying https://www.doczj.com/doc/4411610190.html,pared with what I saw 10 years ago, ads today are becoming increasingly _______. A. sophisticated
C. philosophical D. physical 4.According to the recent report, 10 years ago about one in seven people in this country spoke a language ________ English at home. A. rather than B. other than C. regardless of D. except for 5.Dolly's creators at Edinburgh's Roslin Institute boasted she ____ the promise of animals that could produce drugs and organs for humans. A. contained B. emphasized C. packed D. embodied 6.If, one day, it was possible to direct stem cells to become selected types of replacement tissue, it could be used to ________ a host of diseases which at present are incurable.
第1题、It is not that I do not like plays. The reason why I did not go to the theater last night was that I could not ___ the time. A、offer B、leave C、afford D、manage 标准答案:C 第2题、To speak English well, ___. A、much practice is needed B、one needs much practice C、much practice is needed by one D、one is needed much practice 标准答案:B 第3题、The material produced in China ___ easily. A、is washed B、washes C、washing D、are washing 标准答案:B 第4题、I am pleased to take ___ to exchange views with you. A、this opportunity B、a chance C、this time D、a period 标准答案:A 第5题、It is required ___ me that I give evidence. A、of B、from C、for D、with 标准答案:A 第6题、Canned foods are ___ with housewives because it takes so little time to cook them. A、popular B、welcome C、desirable D、usual 标准答案:A
1 周；由于工厂订单较/小时10元/小时的条件下，小明选择工作40深圳某工厂工人小明，在工资率为为小时，希望小明能多增加工作时间，而结果却与老板预料相反，/元多，当老板决定把工资增加到15这说明，此时，对小明来说： 、?A收入效应小于替代效应收入效应等于替代效应?B、?收入效应大于替代效应C、?、收入效应与替代效应的作用方向一样D A我的答案：分得分：0.0 2 元，已知达到消费者均衡时消费最后X2两种商品，其价格分别为每单位1设某消费者仅消费元、、Y) XY一单位的的边际效用大约为（边际效用为20，则这时消费的最后一单位 20A?、10B?、?40C、?D、25D我的答案：分0.0得分： 3 垄断者知道每一个消费者对任何数量的产品所要支付的最大货币量，并以此决定其价格，以上我们称之为： 一级差别定价A、? B、二级差别定价? 三级差别定价、C?． D、四级差别定价?A我的答案：分得分：10.0 4 有关劳动的供给曲线向后弯曲的说法正确的是： A?、当工资增加到一定程度，其所带来的替代效应大于收入效应；?B、当工资增加到一定程度，其所带来的收入效应大于替代效应；、C当工资增加到一定程度，收入已经很高，人们希望有闲暇替代工作；? D?、当工资增加到一定程度，继续增加工资则劳动的供给开始减少。B我的答案：分5.0得分：5 有关个人劳动力供给曲线，理解正确的是： 、正斜率向右上方倾斜的部分表示：工资增加则劳动者愿意减少闲暇。A? 正斜率向右上方倾斜的部分表示：工资增加则劳动者愿意增加工作。、B? 负斜率向后弯曲部分表示：工资增加则劳动者愿意增加工作。C、? 工资增加则劳动者不一定愿意增加工作。D?、B我的答案：分5.0得分： 6 有关本课程所讲的等边际原则，下列说法错误的是： A、等边际原则与效用最大化没有任何关系。?美元，都能、根据等边际法则我们应该这样安排自己的消费，即在每一种物品上所支出的最后?1B 给我带来相等的边际效用。消费的每一种物品，最后一单位的消费所带来的边际效用相等，即实现了效用最大化。C?、D?、如果花费在任何一种物品上的最后1美元能够提供更多的边际效用，那么增加该物品的消费会减少总效用。． A我的答案：分5.0得分： 7 下列属于实现价格歧视必须具备的条件是： 卖者是一个垄断者，或者它至少拥有一定程度的垄断权力，因而他可以控制价格。?A、卖者能够了解不同层次的买者购买商品的意愿或能力。也就是说，他知道不同的买者对商品所?、 B 具有的不同的需求弹
你的得分：100.0 完成日期：2013年01月15日15点07分 说明：每道小题括号里的答案是您最高分那次所选的答案，标准答案将在本次作业结束(即2013年03月14日)后显示在题目旁边。 1. 2.社会经济统计的研究对象是（）。 ( C ) A.抽象的数量关系 B.社会经济现象的规律性 C.社会经济现象的数量特征和数量关系 D.社会经济统计认识过程的规律和方法 3.某城市工业企业未安装设备普查，总体单位是（）。 ( B ) A.工业企业全部未安装设备 B.工业企业每一台未安装设备 C.每个工业企业的未安装设备 D.每一个工业 4.标志是说明总体单位特征的名称，标志有数量标志和品质标志，因此（）。 ( C ) A.标志值有两大类：品质标志值和数量标志值 B.品质标志才有标志值 C.数量标志才有标志值 D.品质标志和数量标志都具有标志值 5.某城市工业企业未安装设备普查，总体单位是（）。 ( B ) A.工业企业全部未安装设备 B.工业企业每一台未安装设备 C.每个工业企业的未安装设备 D.每一个工业企业 6.指标是说明总体特征的，标志是说明总体单位特征的，所以（） ( B ) A.标志和指标之间的关系是固定不变的 B.标志和指标之间的关系是可以变化的 C.标志和指标都是可以用数值表示的 D.只有指标才可以用数值表示 7.连续调查与不连续调查的划分依据是（）。 ( B ) A.调查的组织形式 B.调查登记的时间是否连续 C.调查单位包括的范围是否全面 D.调查资料的来源 8.某市工业企业1997年生产经营成果年报呈报时间规定在1998年1月31日，则调查 期限为（）。
1.Our manager will look into the matter as soon as possible. Just have a little ____. A wait B time C patience D rest 正确答案:C 词汇与结构2013 2.There will be _______ soon. I’m afraid I can’t go. A rain B rainy C raining D rains 正确答案:A 词汇与结构2013 3.I am not used to speaking ______ public. A in B at C on D to 正确答案:A 交际英语2013 4.--I wonder if I could use your computer tonight.--_____________. I’m not using it right now. A Sure, so ahead. B I don’t’ know. r. C It doesn’t matte
D Who cares? 正确答案:A 词汇与结构2013 5.I don’t know the park, but it’s ______ to be quite beautiful. A said B told C spoken D talked 正确答案:A 词汇与结构2013 6.The teacher came into the classroom, ______ a thick book in her hand. A have B to have C having D had 正确答案:C 交际英语2013 --_______________. 7.--Hey, Tom, what’s up? A Yes, definitely! B Oh, not much. C What is happening in your life? D You are lucky. 正确答案:B 词汇与结构2013 8.It is ______ that an accidental meeting makes a lifelong friendship.
单选题 1.《长沮桀溺耦而耕》文中,夫子怃然曰：“鸟兽不可与同群，吾非斯人之徒与而谁与？天下有道，丘不与易也。”孔子所说“斯人”是指（）。 A 桀溺 B 子路 C 世人 D 自己 正确答案:C 单选题 2.《组织管理的技术——系统工程》是一篇宏观性质的科普作品，不像科学小品，可从科学现象点滴生发开去；也不能如科幻作品，展开幻想翅膀高飞。它既有严格的科学性，用准确、通俗的文字高度概括地介绍系统工程的知识；又深入浅出，（），寓繁于简，以鲜明的观点、丰富的内容、醒目的标题豁人耳目，使外行乐意领教。 A 小题大做 B 以一总万 C 大题小做 D 另辟蹊径 正确答案:C 单选题 3.“康桥”也就是我们今天所译的“剑桥”，英国剑桥大学所在地。康桥象征诗人对“爱”、“美”、“自由”的单纯信仰,对青春的留恋,对理想的执着,是人生中最美好的青春梦幻之地。康桥求学是徐志摩人生中最美丽的一段时光，其时他对诗歌发生浓厚的兴趣，走上文学的道路。重返故地，牵引起他无数关于青春、理想、还有对过去飘逸洒脱生活方式的甜蜜回忆。诗中重墨浓彩写的是（）。 A 对青春的留恋 B 对理想的执着 C 大学学习生活 D 康河景观 正确答案:D 单选题 4.韩愈（768－824）字退之，河内河阳人（今河南省孟县）。韩氏自称郡望昌黎，每自称韩昌黎，故后世称他为韩昌黎。他倡导了古文运动，其文遒劲有力，条理畅达，语言精炼，各
体兼长，为古代杰出散文家,位列“唐宋（）”之首。 A 名家名人 B 散文家 C 八大家 D 古文家 正确答案:C 单选题 5.《饮食男女》是李安父亲三部曲（《推手》和《喜宴》）中的最后一部。和前两部一样，李安在这部电影中展现的仍然是中国传统与现代撞击中的（）家庭生活细节。李安对家庭剧有着明显的偏爱，这大概源于他自己独特的对于家庭的感受，很善于从小处见大，从看似简单的家庭情节剧中挖掘出深刻的精神内涵。在《饮食男女》这部影片里，李安没有把三个女儿简单地设置老朱的对立面，而是通过一个个生动的细节，将三个女儿的个性都表现出来了。每个女儿都有自己的问题，她们在内心都有一种逃离家庭建立新家庭的欲望，但在中国传统文化的桎梏下，人人对性的问题都讳莫如深，但这个传统家庭却最后喜剧性地毁于这种人人心中都存在的儿女私情。 A 台湾高雄 B 台湾乡村 C 台湾城市 D 台湾台北 正确答案:D 单选题 6.《前赤壁赋》中作者写景抒情由情入理生动地抒发的不重得失的豁达乐观的情怀。文中他以（）阐明变与不变的哲理:客亦知夫水与月乎？逝者如斯，而未尝往也；盈虚者如彼，而卒莫消长也。盖将自其变者而观之，则天地曾不能以一瞬；自其不变者而观之，则物与我皆无尽也，而又何羡乎？且夫天地之间，物各有主。苟非吾之所有，虽一毫而莫取。惟江上之清风，与山间之明月，耳得之而为声，目遇之而成色。取之无禁，用之不竭。是造物者之无尽藏也，而吾与子之所共适。 A 主客问答 B 清风明月 C 人生感悟 D 以景拟人 正确答案:A
第一章绪论 1、解释下列概念 稀缺：稀缺性是指欲望总是超过了能用于满足欲望的资源。稀缺具有绝对性，任何社会和时代资源都存在稀缺；稀缺具有相对性，资源相对于人的欲望总是稀缺。 自由物品：是自然界存在，人类可以不用付出任何代价就能自由取用的物品。 经济物品：人类必须付出代价才能得到的物品，即必须耗费一定资源、借助生产工具通过劳动加工生产出来的物品。 微观经济学：又称个量经济学，研究对象是个别经济单位，包括单个消费者、单个生产者、单个市场等。 宏观经济学：以整个国民经济活动为研究对象，利用总量分析方法研究国民经济中各个有关总量的决定及其变化，来说明资源怎样才能得到充分利用。 机会成本：资源投入某一特定用途后，所放弃的其他用途的最大利益。 生产可能性曲线：在资源既定的条件下，所能达到的两种产品的最大组合，可以用来进行各种生产组合的选择。 2、怎样理解西方经济学的性质？ 西方经济学具有双重性质：一方面，存在与社会主义思想相对立的资本主义的意识形态的一面；另一方面，又有对社会主义有用的经验总结和管理方法的另一面。（具体可展开阐述） 即使以西方经济学中的有用部分而论，它是否真正有用还要看它是否适合我国的国情。由于国情的差异，对西方有用的东西未必在我国能产生同样的效果。 3、怎样理解西方经济学是研究在资源稀缺状况下，如何实现资源有效配置的科学？ 资源的稀缺性与人的欲望和需求的无止境和多样性是人类社会所面临的基本矛盾，分析与解决这一矛盾冲突就是经济学的基本任务。经济学实质是一门关于选择的科学，它主要研究人和社会如何做出选择，以使有限的资源能更好的满足人类多样化的需求。因此，西方经济学是研究资源稀缺状况下，实现资源有效配置的科学 4、现代西方经济学试图解决的基本经济问题有哪些？ 现代西方经济学包括微观经济学与宏观经济学 （1）微观经济学试图解决的问题； a.生产什么，生产多少的问题 b.采用什么生产方法，即怎样生产的问题 c.为谁生产，即收入分配问题 （2）宏观经济试图解决的问题： a.总体经济问题，如：经济增长、经济周期波动、失业和通货膨胀、国家财政、进出口贸易和国际收支等。 b.国民经济总量及各项总量的相互关系，如：国民收入、国内生产总值、总就业量或总失业率、全社会消费量、投资、储蓄、物价水平、利息率，以及这些变量的增长率和波动率等。 5、什么是机会成本？机会成本概念需具备哪些条件？ 机会成本：资源投入某一特定用途后，所放弃的其他用途的最大利益。 条件：一，资源本身有多种用途；二，资源可以自由流动且不受限制；三，资源能够充
《统计学》第二次作业 注:本次作业主要针对4、6、8章相关知识点。 一、单选题(共11个) 1、直接反映总体规模大小得指标就是( C )。 A、平均指标 B、相对指标 C、总量指标 D、变异指标 2、计算结构相对指标时,总体各部分数值与总体数值对比求得得比重之与( C )。 A、小于100% B、大于100% C、等于100% D、小于或大于100% 3、下列相对数中,属于不同时期对比得指标有( B )。 A、结构相对数 B、动态相对数 C、比较相对数 D、强度相对数 4、 2010年某市下岗职工已安置了13、7万人,安置率达80、6%,安置率就是( D )。 A、总量指标 B、变异指标 C、平均指标 D、相对指标 5、根据同一资料计算得数值平均数通常就是各不相同得,她们之间得关系就是( D )。 A、算术平均数≥几何平均数≥调与平均数 B、几何平均数≥调与平均数≥算术平均数 C、调与平均数≥算术平均数≥几何平均数 D、没有关系 6、指数就是表明现象变动得( B ) A、绝对数 B、相对数 C、平均数 D、抽样数 7、编制数量指标指数一般就是采用( A )作为同度量因素。 A、基期质量指标 B、报告期质量指标 C、基期数量指标 D、报告期数量指标 8、价格下降后,花同样多得钱可以多购买基期商品得10%,则物价指数为( B ) A、 90% B、 90、9% C、 110% D、 111、1% 9、消费价格指数反映了( D ) A、城乡商品零售价格得变动趋势 B、城乡居民购买生活消费品价格得变动趋势 C、城乡居民购买服务项目价格得变动趋势 D、城乡居民购买生活消费品与服务项目价格得变动趋势 10、变量x与y之间得负相关就是指( C ) A、 x数值增大时y也随之增大 B、 x数值减少时y也随之减少 C、 x数值增大(或减少)y随之减少(或增大) D、 y得取值几乎不受x取值得影响 11、如果相关系数为0,表明两个变量之间( C ) A、相关程度很低 B、不存在任何关系 C、不存在线性相关关系 D、存在非线性相关关系 二、多选题(共7个) 1、时期指标得特点就是指标得数值( ADE )。
开放英语2在线作业答案 1、Don't let _______ in. The doctor is operating on the patient now. A anyone B someone C nobody 2、Will she _______ do the work? A be able to B able to C is able to 3、She _______ jogging every morning. A goes B does C plays 4、_______ a glass of coffee.A I'd rather haveB I haveC I prefer to 5、Where's _______ newspaper? A today B today 's C todays' 6、I don't like coloured clothes. I like white_______. A ones B one C any 7、Have you got any books on Chinese painting? I want to borrow _______. A any B every C one 8、He likes _______ football very much. A playing B to play C play 9、Money isn't _______. A anything B something C everything 10、My parents work very hard in the farm. They _______ get up early in the morning. A occasionally B sometimes C always 11、June 1st is _______ Day.A Children'sB Childrens'C Children 12、I _______ don't understand. Could you say it again? A still B yet C as well 13、We always _______ the neighbours' cat while they're away. A take care B look after C look at 14、She _______ in America for many years. She hopes to go back toChina next year. A lives B lived C has lived 15、I am getting on very well _______ the new job. A with B on C in
?A) Yes，I can. ?B) Here you are. ?C) Sorry，I don’t think so. ?D) You can take it. ?A) showed ?B) has shown ?C) will show ?D) is showing 参考答案：B 解析： 无
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?B) only 20 who ?C) of 20 of these who ?D) only 20 of whom ?A) Sorry，he is busy at the moment ?B) No，you can’t ?C) Sorry，you can’t ?D) I don’t know ?A) should be hurt ?B)
is hurt ?C) will be hurt ?D) is to be hurt ?A) Sorry. He’s in at the moment. ?B) Why didn’t you call earlier? ?C) Certainly. May I have your name? ?D) D. Sorry. He doesn’t want to see you. ?A) rain
案例二 津巴布韦通货膨胀 上世纪80年代，被称为非洲的“菜篮子”和“米袋子”的津巴布韦是非洲最富裕的国家之一。至U 2008年4 月4日，继2008年1月津巴布韦中央银行发行最大面值为 1000万津元后，又发行了当今世界上面额最大的 2.5亿津元纸币，可是仍旧有人提议要发行更高面值的货币。在津巴布韦，人们对货币的使用早已不是论张，而是论“堆” 或者用秤来“称量”。被称之为津巴布韦化。 津巴布韦的物价越来越高，钱却是越来越薄，通货膨胀让许多人大喊吃不消，位于非洲的津巴布韦，感触绝对特别深，一张面额1000万津巴布韦币的纸钞，只能换到美金1.5元，而在津巴布韦买一只鸡要 1300万津巴布韦币，游民至少要捡两个月的垃圾，加上不吃不喝才能买到一只鸡。 津巴布韦的垃圾场上来了许多街头游民，没钱买东西吃他们只好自力救济，身体还算硬朗的游民。一个月还能攒上津巴布韦币2000万，但像一名体弱多病的苏菲亚，变卖的东西一个月才赚上 100元津巴布韦币。拾荒者苏菲亚说：“政府补助金根本不够用，我只好捡垃圾，赚钱付房租，好有个睡觉的地方。”一张面额一千万津巴布韦币 纸钞，才折合1.5美元，当地去年11月份通货膨胀为24447%短短3个多月，通胀已是当时三倍，来到 66000% 超市中的洋芋片，一包将近500万津巴布韦币，结果还是抢光光，据说500万津巴布韦币，还是上个月的价钱，目前价格已经翻了一倍，当地的通货膨胀，让民众苦不堪言，政府束手无策，只会箝制媒体自由，例如美国有线电 视新闻网就遭津巴布韦政府拒绝采访报导，这段难得的津巴布韦实录，还是透过可靠消息来源，协助采访才完成，国际社会也才得以知悉津巴布韦问题的冰山一角。 结合案例，请你分析以下几个问题： 1. 什么是通货膨胀？通货膨胀产生的原因有哪些？ 2. 津巴布韦通货膨胀产生的原因是什么？ 3. 如何治理通货膨胀？津巴布韦政府如何解决其通胀问题的？ 答： 1. 通货膨胀指的是由于货币供给大于货币实际需求，而引起的一段时间内物价持续而普遍的上涨现象。其实质是社 会总需求大于社会总供给。形成通货膨胀的原因有三种： 一是币值标准变化，或者说过多的货币追逐过少的商品。这是一种货币现象。实际上通货膨胀从表面上看都是一种货币现象；一是供求失衡导致的交换价格大于生产价格的现象那么这只是一种暂时的通货膨胀现象，等到供求平衡以后，价格就会回到以前的生产价格上；货币政策对上面两种现象有效，最后一种是财富重新分配导致的通货膨胀, 这通常表现为成本上升型。由于货币只是财富的影子，其本身并不是财富，因此货币政策对此一般无效。 2. 津巴布韦通货膨胀产生的原因：
1. ( 多选题 ) 影响加权算术平均数的因素有( )。 (本题5.0分) A、各组频率或频数 B、各组标志值的大小 C、各组组距的大小 D、各组组数的多少 E、各组组限的大小 学生答案：A,B 标准答案：AB 解析： 得分：5 2. ( 多选题 ) 抽样推断中，样本容量的多少取决于( )。 (本题5.0分) A、总体标准差的大小 B、允许误差的大小 C、抽样估计的把握程度 D、总体参数的大小
E、抽样方法和组织形式 学生答案：A,B,C,E 标准答案：ABCE 解析： 得分：5 3. ( 多选题 ) 编制综合指数的原则是( )。(本题5.0分) A、质量指标指数以报告期的数量指标作为同度量因素 B、质量指标指数以基期的数量指标作为同度量因素 C、数量指标指数以基期的数量指标作为同度量 D、数量指标指数以基期质量指标作为同度因素 学生答案：A,D 标准答案：AD 解析： 得分：5 4. ( 多选题 ) 统计表按主词是否分组及分组的程度, 可分为( )(本题 5.0分) A、简单表 B、一览表 C、分组表
D、复合表 E、单一表 学生答案：A,B 标准答案：AB 解析： 得分：5 5. ( 多选题 ) 次数分配数列（）(本题5.0分) A、由组距和组数、组限和组中值构成的 B、包括品质分配数列和变量数列两种 C、包括品质分配数列和变量数列两种 D、可以用图表形式表现 E、可以表明总体结构和分布特征 学生答案：B,C,D,E 标准答案：BCDE 解析： 得分：5 6. ( 多选题 ) 下列哪些指标是序时平均数（）(本题5.0分) A、一季度平均每月的职工人数 B、某产品产量某年各月的平均增长量 C、某企业职工第四季度人均产值
?I’ll?ask?Mr.?Smith?to?ring?you?up?(??????)?he?comes?back?to?the?office. A. when B.ｗhere 答案:A 您的答案：A 题目分数： 此题得分： ? 2．第2题 You never told us why you were one hour late for the last meeting,（?? ）? ’t you ’t you you you 答案:D 您的答案：D 题目分数： 此题得分： ?
Students sometimes support themselves by（）of evening jobs. A.. ways 答案:C 您的答案：C 题目分数： 此题得分： ? 4．第4题 alice received an invitation ｆrom her boss,（）came as a surprise. 答案:C 您的答案：C 题目分数： 此题得分： ?
The computer center,（）last year, is very popular among the students in this school. opened 答案:D 您的答案：D 题目分数： 此题得分： ? 6．第6题 the americans ａnd the british not only speak the same language but also （）a large number of social customs. 答案:A 您的答案：A 题目分数： 此题得分： ?
《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
生活中的经济学第二次 作业答案 HEN system office room 【HEN16H-HENS2AHENS8Q8-HENH1688】
1 深圳某工厂工人小明，在工资率为为10元/小时的条件下，小明选择工作40小时/周；由于工厂订单较多，当老板决定把工资增加到15元/小时，希望小明能多增加工作时间，而结果却与老板预料相反，这说明，此时，对小明来说： A、 B、 C、 D、 我的答案：A得分：分 2 设某消费者仅消费X、Y两种商品，其价格分别为每单位1元、2元，已知达到消费者均衡时消费最后一单位的Y边际效用为20，则这时消费的最后一单位X的边际效用大约为（ ) A、 B、 C、 D、 我的答案：D得分：分 3 垄断者知道每一个消费者对任何数量的所要支付的最大货币量，并以此决定其价格，以上我们称之为： A、 B、 C、
D、 我的答案：A得分：分 4 有关劳动的供给曲线向后弯曲的说法正确的是：A、 B、 C、 D、 我的答案：B得分：分 5 有关个人劳动力供给曲线，理解正确的是： A、 B、 C、 D、 我的答案：B得分：分 6 有关本课程所讲的等边际原则，下列说法错误的是：A、 B、 C、 D、 我的答案：A得分：分
7 下列属于实现价格歧视必须具备的条件是： A、 B、 C、 D、 我的答案：BC得分：分 8 下面属于价格歧视的是： A、 B、 C、 D、 E、 我的答案：ABC得分：分 9 根据本文观点，“经济文化人”以最佳为理性，而“经济人”以实用为理性； 我的答案：√得分：分 10 小明吃一个苹果的效用为10，吃两个苹果的效用为12，吃三个苹果的效用为10，则第三个苹果的边际效用为2
1分) 0.0 No matter ______, the little sisters managed to round the sheep up and dri ve them back home safely. A) it was snowing hard B) hard it was snowing C) how it was snowing hard D) how hard it was snowing 参考答案：D 收起解析 解析： 无 2分) 0.0 —Is it possible for you to work late tonight —_______ A) I like it. B) I’ll do that C)
I’d love to. D) I think so. 参考答案：D 收起解析 解析： 无 3分) 0.0 People at the party worried about him, because no one was aware _______ he had gone. A) of where B) of the place where C) where D) the place 参考答案：A 收起解析 解析： 无 4分) 5.0 This kind of material expands _______ the temperature increasing. A) to B) for
with D) at 参考答案：C 收起解析 解析： 无 5分) 5.0 —Unbelievable! I have failed the driving test again! —_______ This is not the end of the world. A) Good luck. B) Cheer up. C) Go ahead. D) No problem. 参考答案：B 收起解析 解析： 无 6分) 0.0 ______ the War of Independence, the United States was an English colony.
你的得分：100.0 完成日期：2015年12月03日13点07分 说明：每道小题选项旁的标识是标准答案。 一、单项选择题。本大题共15个小题，每小题4.0 分，共60.0分。在每小题给出的选项中，只有一项是符合题目要求的。 1.大卫?李嘉图建立在( )基础上的分配论达到他所处的那个时代的高峰。 A.市场法则论 B.劳动价值论 C.工资基金说 D.边际效用论 2.工资率提高的收入效应对个人劳动供给影响是( )？ A.正向 B.负向 C.没有 D.不确定 3.个人劳动力供给曲线是( )的。 A.向前弯曲 B.向后弯曲 C.从左下向右上倾斜 D.从左上向右下倾斜 4.家务劳动的存在对劳动参与( )影响。 A.有正向 B.有负向 C.没有 D.不确定 5.等成本线的斜率等于( )？ A.劳动和资本的边际产品之比 B.劳动和资本的数量之比？ C.劳动和资本的相对价格比 D.工资率？ 6.长期劳动力需求曲线比短期需求曲线的弹性和形状( )？ A.大，陡峭 B.大，平缓 C.小，陡峭 D.小，平缓 7.下列关于边际技术替代率的说法，不正确的有( )？ A.边际技术替代率是劳动投入和资本投入相互替代的比率？ B.边际技术替代率数值为正 C.边际技术替代率是等产量线的斜率 D.边际技术替代率等于可变投入要素的边际产品之比 8.边际劳动产量最终都要下降，这是因为( ) A.新增加的劳动力本身技术较差
B.新增加的工人工资较高？ C.资本变得相对不足 D.资本变得相对过剩 9.劳动力需求曲线不变，劳动力供给曲线左移，对均衡工资率和均衡就业量的影响为( ) A.减少，减少 B.减少，增加 C.增加，减少 D.增加，增加？ 10.蛛网稳定条件是指( ) A.劳动力需求弹性大于劳动力供给弹性 B.劳动力需求弹性小于劳动力供给弹性？ C.劳动力需求弹性等于劳动力供给弹性 D.劳动力需求弹性为1？ 11.一般培训的成本通常由( )来支付。 A.企业 B.员工 C.政府 D.社会 12.实际工资与物价指数( )？ A.正相关 B.负相关 C.不相关 D.不确定 13.下列关于无差异曲线的论述，不正确的是( )？ A.无差异曲线随主体偏好不同而具有不同的形状 B.同一主体的无差异曲线绝对不能相交 C.离原点越远的无差异曲线所代表的效用越低 D.无差异曲线的斜率衡为正值 14.技术进步对( )的就业影响较大。？ A.熟练工 B.非熟练工 C.技工 D.女工 15.下列( )属于紧缩性财政政策。 A.提高税率 B.增加政府转移支付 C.扩大政府购买 D.增加公共工程支出？ 二、多项选择题。本大题共5个小题，每小题4.0 分，共20.0分。在每小题给出的选项中，有一项或多项是符合题目要求的。 1.互惠的交换不能实现的主要障碍有( )？ A.信息障碍
统计学原理第二次作业及答案 题目1 总指数的基本形式是（） 选择一项： a. 个体指数 b. 平均指数 c. 综合指数 d. 平均指标指数 正确答案是：综合指数 题目2 重点调查所选的重点单位，必须是在调查对象中（） 选择一项： a. 具有较大标志值的那一部分调查单位 b. 具有代表性的调查单位 c. 按随机原则选出的调查单位 d. 填报调查数据的填报单位 正确答案是：具有较大标志值的那一部分调查单位 题目3 连续变量数列、其末组为开口组，下限为1000，其相邻组的组中值为950，则末组的组中值为（）（单选） 选择一项： a. 1025 b. 1050 c. 1100 d. 1150 正确答案是：1050 题目4 零售物价指数为103%，商品零售量指数为106%，则商品零售额指数为（）（单选）
选择一项： a. 109% b. 110% c. 103% d. 109.18% 正确答案是：109.18% 题目5 下列不属于强度相对指标的指标有（） 选择一项： a. 平均单位成本 b. 人口出生率 c. 人口死亡率 d. 人口密度 正确答案是：平均单位成本 题目6 时间序列由两个基本要素构成（）（多选） 选择一项或多项： a. 时间，即现象所属的时间 b. 指标数值，即表现现象特点的各项指标数值 c. 指标名称 d. 计量单位 e. 计算公式 正确答案是：时间，即现象所属的时间, 指标数值，即表现现象特点的各项指标数值题目7 以下分组标志中属于品质标志的是（）（多选） 选择一项或多项： a. 性别
b. 年龄 c. 职业 d. 月收入 e. 职称 正确答案是：性别, 职业, 职称 题目8 在时间序列中，各指标值相加后无意义的有（）（多选） 选择一项或多项： a. 时期数列 b. 时点数列 c. 绝对数时间序列 d. 相对数时间序列 e. 平均数时间序列 正确答案是：时点数列, 相对数时间序列, 平均数时间序列 题目9 我国财政收入，2003年比上年增加2787亿元，这是（）（单选）选择一项： a. 发展水平 b. 增长量 c. 发展速度 d. 增长速度 正确答案是：增长量 题目10 相关关系是社会经济现象之间客观存在的（）（单选） 选择一项： a. 在数量上不确定的相互依存关系 b. 在数量上确定的函数关系