作业一
1、一只股票现在价格是100元。有连续两个时间步，每个步长6个月，每个单步二叉树预
期上涨10%，或下跌10%，无风险利率8%（连续复利），运用无套利原则求执行价格为100元的看涨期权的价值。
2、假设市场上股票价格S=20元，执行价格X=18元，r=10%,T=1年。如果市场报价欧式看涨
期权的价格是3元，试问存在无风险的套利机会吗如果有，如何套利
3、股票当前的价格是100元，以该价格作为执行价格的看涨期权和看跌期权的价格分别是
3元和7元。如果买入看涨期权、卖出看跌期权，再购入到期日价值为100 的无风险债券，则我们就复制了该股票的价值特征（可以叫做合成股票）。试问无风险债券的投资成本是多少如果偏离了这个价格，市场会发生怎样的套利行为
作业解答：
1、按照本章的符号，u=,d=,r=,所以p=( ×。这里p是风险中性概率。期权的价值是：
(0.70412×21+2×××0+×0) =。
2、本题中看涨期权的价值应该是S-Xe-rT==。显然题中的期权价格小于此数，会引发套利活动。套利者可以购买看涨期权并卖空股票，现金流是20-3=17。17以10%投资一年，成为17 ==。到期后如果股票价格高于18，套利者以18元的价格执行期权，并将股票的空头平仓，则可获利=元。若股票价格低于18元（比如17元），套利者可以购买股票并将股票空头平仓，盈利是=元。
3、无风险证券的投资成本因该是100-7+3=96元，否则，市场就会出现以下套利活动。
第一，若投资成本低于96元（比如是93元），则合成股票的成本只有97元（7-3+93），相对于股票投资少了3元。套利者以97元买入合成股票，以100元卖空标的股票，获得无风险收益3元。
第二，若投资成本高于96元（比如是98元），则合成股票的成本是102元，高于股票投资成本2元。套利者可以买入股票同时卖出合成股票，可以带来2元的无风险利润。
作业二：
1.A公司和B公司如果要在金融市场上借入5年期本金为2000万美元的贷款，需支付的年利率分别为：
A公司需要的是浮动利率贷款，B公司需要的是固定利率贷款。请设计一个利率互换，其中银行作为中介获得的报酬是％的利差，而且要求互换对双方具有同样的吸引力。
2.X公司希望以固定利率借入美元，而Y公司希望以固定利率借入日元，而且本金用即期汇率计算价值很接近。市场对这两个公司的报价如下：
请设计一个货币互换，银行作为中介获得的报酬是50个基点，而且要求互换对双方具有同样的吸引力，汇率风险由银行承担。
3. 一份本金为10亿美元的利率互换还有10月的期限。这笔互换规定以6个月的LIBOR 利率交换12％的年利率（每半年计一次复利）。市场上对交换6个月的LIBOR利率的所有期限的利率的平均报价为10％（连续复利）。两个月前6个月的LIBOR利率为％。请问上述互换对支付浮动利率的那一方价值为多少对支付固定利率的那一方价值为多少
作业答案：
1. A公司在固定利率贷款市场上有明显的比较优势，但A公司想借的是浮动利率贷款。而B公司在浮动利率贷款市场上有明显的比较优势，但A公司想借的是固定利率贷款。这为互换交易发挥作用提供了基础。两个公司在固定利率贷款上的年利差是%，在浮动利率贷款上的年利差是。如果双方合作，互换交易每年的总收益将是%－%=%。因为银行要获得%的报酬，所以A公司和B公司每人将获得%的收益。这意味着A公司和B公司将分别以LIBOR－%和13%的利率借入贷款。合适的协议安排如图所示。
% %
12% LIBOR+%
LIBOR LIBOR
2. X 公司在日元市场上有比较优势但想借入美元，Y 公司在美元市场上有比较优势但想借入日元。这为互换交易发挥作用提供了基础。两个公司在日元贷款上的利差为%，在美元贷款上的利差为%，因此双方在互换合作中的年总收益为%－%=%。因为银行要求收取%的中介费，这样X 公司和Y 公司将分别获得%的合作收益。互换后X 公司实际上以%－%=%的利率借入美元，而Y 实际上以%－%=%借入日元。合适的协议安排如图所示。所有的汇率风险由银行承担。
日元5% 日元%
日元5% A 金融中介 B 美元10%
美元% 美元10%
3. 根据题目提供的条件可知，LIBOR 的收益率曲线的期限结构是平的，都是10%（半年计一次复利）。互换合约中隐含的固定利率债券的价值为
0.33330.10.83330.16106103.33e e -?-?+=百万美元
互换合约中隐含的浮动利率债券的价值为
()0.33330.1100 4.8101.36e -?+=百万美元
因此，互换对支付浮动利率的一方的价值为103.33101.36 1.97-=百万美元，对支付固定利率的一方的价值为－百万美元。
加元5% 加元%
加元5% A 金融中介 B 美元LIBOR+1%
美元LIBOR+% 美元LIBOR+1%
本金的支付方向在互换开始时与箭头指示相反，在互换终止时与箭头指示相同。金融中介在此期间承担了外汇风险，但可以用外汇远期合约抵补。
作业三：
1．假设某不付红利股票价格遵循几何布朗运动，其预期年收益率16%，年波动率30%，该股票当天收盘价为50元，求：
第二天收盘时的预期价格，第二天收盘时股价的标准差，在量信度为95%情况下，该股票第二天收盘时的价格范围。
2．某股票市价为70元，年波动率为32%，该股票预计3个月和6个月后将分别支付1元股息，市场无风险利率为10%。现考虑该股票的美式看涨期权，其协议价格为65元，有效期8个月。请证明在上述两个除息日提前执行该期权都不是最优的，并请计算该期权价格。
3．某股票目前价格为40元，假设该股票1个月后的价格要么为42元、要么38元。连续复利无风险年利率为8%。请问1个月期的协议价格等于39元欧式看涨期权价格等于多少 习题答案：
1、 由于),(~t t S
S ???σμφ 在本题中，S ＝50，＝,=,t=1/365=.因此， S/50
,因此，第二天预期股价为元，标准差为元，在95％的置信水平上第2天股价会落在至+,即元至元之间。
2、 D 1=D 2=1,t 1=,T=,r=,X=65
221()0.10.1667()0.10.25[1]65(1) 1.07
[1]65(1) 1.60r T t r t t X e e X e
e ---?---?-=-=-=-=
可见， 221()2()1[1]
[1]r T t r t t D X e D X e ----<-<-
显然，该美式期权是不应提早执行的。
红利的现值为：
0.250.10.500.1 1.9265e e -?-?+=
该期权可以用欧式期权定价公式定价： S ＝70－＝，X ＝65，T=,r=,σ＝
21210.320.6667
0.320.66670.3013
d d d =?=-= N(d 1)=,N(d 2)=
因此，看涨期权价格为：
0.10.6667
?-??=
e-?
68.07350.7131650.618410.94
3、构造一个组合，由一份该看涨期权空头和Δ股股票构成。如果股票价格升到42元，该组
合价值就是42Δ-3。如果股票价格跌到38Δ元，该组合价值就等于38Δ。令：
42Δ-3=38Δ
得：Δ=元。也就是说，如果该组合中股票得股数等于，则无论1个月后股票价格是升到42元还是跌到38元，该组合的价值到时都等于元。因此，该组合的现值应该等于：
元。
这意味着：
-c+40Δ=
c=40×元。
《大学英语（二）》作业 Part I. Reading Comprehension Directions: There are three passages in this part. Each passage is followed by some questions. For each of them there are four choices marked A, B, C and D. You should decide on the best choice. Passage 1 Charlie Chaplin has broken all records in making people laugh. No one has so set a whole world laughing as the little man with the walking stick and the overlarge shoes. Much has been written about Chaplin's art and his career, and opinions have ranged widely. But perhaps those who called him "the most general human being of our time" came closest to the truth. Those who have called him a genius stress the timeless and common qualities in his work. It is an art filled with sad elements and deep human feeling, with which an audience cannot help but become involved. It is for these reasons, I believe, that the figure of Charlie has attracted generation after generation. All the writers who give accounts of Chaplin's life agree that Charlie's unhappy early years in the area in London where houses were dirty and worn had a great influence on his development and on the type of films he made. Chaplin himself emphasizes it in his memoirs (回忆录). The more one reads about his earliest period, the more one tends to agree. Indeed, his suffering youth had a lasting influence on him. Chaplin was never afraid to deal with subjects causing much disagreement in his films. He gave a humorous performance on war only a few weeks before the American soldiers came home from World War I in 1918. This was regarded as madness, but the performance was well received. So perfectly did it hit the nail on the head that even the returning soldiers found it impossible to hate it and deeply appreciated this short and humorous performance on what for them had been unpleasant reality. Chaplin gave numerous performances attacking capital governments, satirizing (讽刺) the cruelty of the machine age and even making fun of Hitler. Years after his death, the funny films of motion picture actor and director Charlie Chaplin continue to be popular. He is particularly well known for his success as a creator of humorous presentations that make fun of people, the establishment, or networks. 1. All of the following about Charlie Chaplin are true except __________. A. he was born in the USA B. he was a great film actor C. he had an unhappy early life D. he made fun of Hitler in his films
题号:1 题型:单选题（请在以下几个选项中选择唯一正确答案）本题分数:2 __________ each question, the teacher writes the correct answer and three other statements that look like correct ones. ?A、As to ?B、Except fo ?C、Along with ?D、In addition 标准答案：c 说明： 题号:9 题型:单选题（请在以下几个选项中选择唯一正确答案）本题分数:2 The army has _____________ a successful attack on the anti-government organization. ?A、computerized ?B、achieved ?C、scheduled ?D、completed 标准答案：d 说明： 题号:2 题型:单选题（请在以下几个选项中选择唯一正确答案）本题分数:2 __________ brought up and educated in Chicago, the author is most famous for his stories about New York City. ?A、Since ?B、As
?C、Although ?D、When 标准答案：c 说明： 题号:3 题型:单选题（请在以下几个选项中选择唯一正确答案）本题分数:2 ____________ all the electronic devices, computers have the greatest significance in modern technology. ?A、On ?B、In ?C、with ?D、Of 标准答案：d 说明： 题号:4 题型:单选题（请在以下几个选项中选择唯一正确答案）本题分数:2 If we compare the weather in Nanjing ___________ in London, we find there are many differences. ?A、with it ?B、with that ?C、and ?D、with 标准答案：b 说明： 题号:5 题型:单选题（请在以下几个选项中选择唯一正确答案）本题分数:2 It will not take more than five hours ____________ to Beijing by train by the end of the year.
一、单项选择题(只有一个选项正确，共40道小题) 1. –What time is it? –____________________. (A) My watch keeps good time (B) My watch is five minutes fast (C) My watch says three o’clock (D) I say three o’clock 正确答案：C 解答参考：[第三单元] 本题问句是“现在几点钟”，C项“我的表是三点钟”。A项“我的表走时准确”，B项“我的表快五分钟”，D项“我说是三点钟”都不符合习惯表达法。 2. –Could you tell me the time, please? –____________________. (A) Yes, I can (B) No, I can’t (C) It’s four thirty (D) It’s Friday 正确答案：C 解答参考：[第三单元]C 本题仍是问时间，回答应该直接告诉对方时间，故C项正确。 3. –What day is tomorrow? –Today is Tuesday. So it’s________. (A) Monday (B) Wednesday (C) Thursday (D) Saturday 正确答案：B 解答参考：[第三单元]B 本题问“明天是星期几”，回答“今天是星期二，所以明天是星期三”。 4. –When is your birthday? –____________________. (A) It’s April 18th (B) It’s Sunday (C) It’s August
一、 单项选择 1、下列关于远期价格和远期价值的说法中，不正确的是：（B ） B ．远期价格等于远期合约在实际交易中形成的交割价格 2.在衍生证券定价中，用风险中性定价法，是假定所有投资者都是( C )。 C.风险无所谓的 3.金融工具合成是指通过构建一个金融工具组合使之与被模仿的金融工具具有( A )。 A.相同价值 4.远期价格是( C)。 C.使得远期合约价值为零的交割价格 5.无收益资产的美式期权和欧式期权比较( A )。 A.美式期权价格大于欧式期权价格 6.无收益资产欧式看跌期权的价格上限公式是( C )。 C.)(t T r Xe p --≤ 7.在期货交易中，基差是指（ B ）。 B.现货价格与期货价格之差 8.无风险套利活动在开始时不需要（ B ）投入。 B.任何资金 9.金融互换具有( A )功能。 A.降低筹资成本 10.对利率互换定价可以运用( A )方法。 A.债券组合定价 11.期货价格和远期价格的关系（ A )。 A.期货价格和远期价格具有趋同性 12.对于期权的买者来说，期权合约赋予他的（ C ）。 C.只有权利而没有义务 13.期权价格即为( D )。 D.内在价值加上时间价值 14.下面哪一因素将直接影响股票期权价格( B )。 B.股票价格的波动率 15.无收益资产的欧式看涨期权与看跌期权之间的平价关系为( A )。 A. s p Xe c t T r +=+--)( 16、假设有两家公司A 和B ，资产性质完全一样，但资本结构不同，在MM 条件下，它们每年创造的息税前收益都是1000万元。A 的资本全部由股本组成，共100万股（设公司不用缴税），预期收益率为10%。B 公司资本中有4000万企业债券，股本6000万，年利率为8%，则B 公司的股票价格是（ A ）元 A 、100 17、表示资金时间价值的利息率是（C ） C 、社会资金平均利润率 18.金融工程的复制技术是（A ）。 A.一组证券复制另一组证券
2010上半年大学英语(3)第2次作业大学英语（三） 第一部分：交际英语（每题3分，共15分） 1. — _____A_______________ — Well, they got there last Wednesday. So about a week. A. How long have your parents been in Paris? B. When did your parents arrive at Paris? C. Did your parents arrive at Paris last Wednesday? D. When will your parents go to Paris? 2. —My mother is pretty sick. —____C______________. A. Good for her. B. Oh, it’s not true. C. That’s too bad. D. Why s 3. — I'd like to say goodbye to everyone. My plane leaves at 7:25. — Well, ______C________________. A. sounds great B. good for you C. goodbye and have a good trip D. it’s emergent 4. — Good morning, sir. Can I help you? — _______B__________. A. Yes, why not? B. Yes, is there a bank near here? C. Are you kidding? D. You are welcome! 5. — Please help yourself to some seafood. — ______D_________. A. No, I can’t. B. Sorry, I can’t help. C. Well, seafood don’t suit. D. Thanks, but I don’t like seafood. 第二部分：阅读理解（每题3分，共30分） Passage 1 A new study suggests that the more teenagers watch television, the more likely they are to develop depression as young adults. But the extent to which TV may or may not be to blame is a question that the study leaves unanswered. The researchers used a national long-term survey of adolescent health to investigate the relationship between media use and depression. They based
大学英语 （2）第二次网络作业（新教材） 一、阅读： ( 1 ) One important cause of the generation gap is the opportunity that young people have to choose their own ways of life. In a more traditional society, when children grow up,they are expected to live in the same area as their parents,to marry people that their parents know and like, and often to continue the family jobs.In our society,young people often travel great distances for their education, move out of the family at an early age,marry or live with people whom their parents have never met,and choose jobs different from those of their parents. 1. The first paragraph tells us that __A__. a.the problem of the generation gap draws much attention from people 2. In a more traditional society, old people___A__. a. have their children respect and listen to them b. do not care for their children at all c. expect their children to rebel against them d. do not live together with their children 3. In American society young people___B___. a. do not need to find jobs b. leave home at an early age
2011年春季学期大学英语（3）第三次作业 一、单项选择题（本大题共50分，共 25 小题，每小题 2 分） 1. A single technical term will frequently cover an idea that would othe rwise （） a long phrase or clause. A. A call for B. B make for C. C allow for D. D stand for 2. I''''ll never know all that was in his mind, （）. A. A nor will anyone else either B. B nor won''''t anyone else too C. C nor anyone else will D. D nor will anyone else 3. He kept working, ( ) he was very tired. A. so B. how C. nevertheless D. though 4. When I saw ( ) book that I bought it at once. A. such good B. so good C. so good a D. such good a 5. They said they would not make their final ( ) until the election result came out. A. decide B. decisive C. decision D. depict 6. Western countries celebrate Christmas ( ) Chinese people celebrate Spring Festival. A. on the way B. in a way C. in ways D. on ways 7. All the doctors hold the view that plenty of fresh air ( ) to good health. A. contributes B. attributes C. distributes D. entributes 8. I wonder what ( )at this time tomorrow morning. A. he has done
一、单项选择题。本大题共40个小题，每小题2.5 分，共100.0分。在每小题给出的选项中，只有一项是符合题目要求的。 1. —What a poor job I’ve done! —_______ 2. ( D ) 1. Do it again. 2. 3. You can do it. 4. 5. Do your best! 6. 7. Don’t be upset. No one can do it better than you. 8. 3. —Are you doing anything special on Friday, Bill? —_______ —Oh, what a pity! 4. ( B ) 1. No, nothing special 2. 3. Yes, I have promised to call on some friends 4. 5. Yes, of course 6. 7. No, I’m not sure. Why? 8. 1. —I’d like to make an appointment with Mr. White. —_______ 2. ( C ) 1.
Sorry, he is busy at the moment. 2. 3. Why didn’t you call earlier? 4. 5. Certainly. May I know your name? 6. 7. Sorry. He doesn’t want to see you. 8. 1. —This is the worst film ever produced. Do you think so? —_______ 2. ( B ) 1. You’re wrong 2. 3. I don’t think so, I’m afraid 4. 5. Not at all 6. 7. No, that’s not real 8. 1. —My dear! I made a mistake again. —_______ 2. ( B ) 1. Be careful. 2. 3. Don’t w orry. We can do something to make up for it. 4. 5. What a pity!
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.
新大学英语（2）第三次网络作业 (三次网络作业的平均成绩占期末考试总评成绩30%，作业一经批改评分，将不能修改；此次作业完成后应交到“在线作业”一栏本次作业界面中；作业必须按最后一页答卷表格格式作答，并且不要以附件形式缴交) 一．阅读： I arrived in the United States on February 6,1966, but I remember my first day here very clearly. My friend was waiting for me when my plane landed at Kennedy Airport at three o’clock in the afternoon. The weather was very cold and it was snowing, but I was too excited to mind. From the airport, my friend and I took a taxi to my hotel. On the way, I saw the skyline（轮廓）of Manhattan （曼哈顿）for the first time and I stared in astonishment at the famous skyscrapers and their man-made beauty. My friend helped me unpack at the hotel and then left me because he had to go back to work. He promised to return the next day. Shortly after my friend had left, I went to a restaurant near the hotel to get something to eat. Because I couldn’t speak a word of English, I couldn’t tell the waiter what I wanted. I was very upset and started to make some gestures(手势), but the waiter didn’t understand me. Finally, I ordered the same thing the man at the next table was eating. After dinner, I started to walk along Broadway until I came to Times Square with its movie theatres, neon lights（霓虹灯）, and huge crowds of people. I did not feel tired, so I continued to talk around the city. I wanted to see everything on my first day. I knew it was impossible, but I wanted to try. When I returned to the hotel, I was exhausted（筋疲力尽）, but I couldn’t sleep because I kept hearing the fire and police sirens（警笛声）during the night. I lay awake and thought about New York. It was a very big and interesting city with many tall buildings and big cars, and full of noise and busy people. I also decided right then that I had to learn to speak English. 1. On the way to his hotel, the writer______. a. was silent all the time
一、单项选择 1、下列关于远期价格和远期价值的说法中，不正确的是：（B ） B ．远期价格等于远期合约在实际交易中形成的交割价格 2.在衍生证券定价中，用风险中性定价法，是假定所有投资者都是( 风险无所谓的 3.金融工具合成是指通过构建一个金融工具组合使之与被模仿的金融工具具有(相同价 值 4.远期价格是( 使得远期合约价值为零的交割价格 5.无收益资产的美式期权和欧式期权比较( 美式期权价格大于欧式期权价格6.无收益资产欧式看跌期权的价格上限公式是( ) (t T r Xe p 7.在期货交易中，基差是指（ B.现货价格与期货价格之差 8.无风险套利活动在开始时不需要（任何资金）投入。 9.金融互换具有( 降低筹资成本 )功能。 10.对利率互换定价可以运用(债券组合定价 )方法。 11.期货价格和远期价格的关系（期货价格和远期价格具有趋同性 )。 12.对于期权的买者来说，期权合约赋予他的（只有权利而没有义务 13.期权价格即为( 内在价值加上时间价值 14.下面哪一因素将直接影响股票期权价格( 股票价格的波动率 15.无收益资产的欧式看涨期权与看跌期权之间的平价关系为( s p Xe c t T r ) (16、假设有两家公司 A 和 B ，资产性质完全一样，但资本结构不同，在 MM 条件下，它们每年创造的息税前收益都是1000万元。A 的资本全部由股本组成，共100万股（设公司不用 缴税），预期收益率为10%。B 公司资本中有4000万企业债券，股本6000万，年利率为8%， 则B 公司的股票价格是（ 100）元 17、表示资金时间价值的利息率是（社会资金平均利润率18. 金融工程的复制技术是（一组证券复制另一组证券 19、金融互换的条件之一是 ( 比较优势 20、期权的内在价值加上时间价值即为 ( 期权价值 21、对于期权的卖者来说，期权合约赋予他的（只有义务而没有权利22、无收益资产的美式看跌期权和欧式看跌期权比较( 美式期权价格大于欧式期权价格 二、多项选择 1、下列因素中，与股票欧式看涨期权价格呈负相关的是：（期权执行价格/期权有效期内标 的股票发放的红利 2、以下关于实值期权和虚值期权的说法中，不正确的是： （ ABCD ） A ．当标的资产价格高于期权执行价格时，我们将其称为实值期权 B ．当标的资产价格低于期权执行价格时，我们将其称为虚值期权
作业二 一、单选题 1、- Would you please show me your bankbook - _________ A：Sorry, I have no idea. B：Here you are. C：Come with me. D：Yes, I'd like to. 2、-- Did you win the 100 metre race -- Yes, I did. -- Really -- _________. A：Congratulations B：Best wishes C：Good luck D：Right-I'm sorry. Bob is not in his office. -_________ A：Can you take a message for me B：Are you sure for that C：Would you like to leave a message D：Can you phone me-I haven't seen Belly for 10 years. 3、 4、- I'm sorry. I lost the key. - ________
A：Well, it's OK. B：No, it's all right. C：You are welcome. D：You are wrong. 5、- Wow! This is a marvelous room! I've never known you're so artistic. - ______ A：Great, I am very art-conscious. B：Don't mention it. C：Thanks for your compliments. D：It's fine. 6、______is the temperature today A：What B：How C：How many D：How much 7、I ______ my home work this time yesterday evening. A：were doing B：was to do C：am doing D：was doing 8、Had you come five minutes earlier, you ______ the train to Birmingham. But now you missed it. A：would catch B：would have caught C：could catch
问题1 得2 分，满分2 分 1、--What does your father do? -- ___________. 答案 所选答案： C. C：He is a farmer 问题2 得2 分，满分2 分 2、-- How are you today? --___________, thank you. 答案 所选答案： A：Fine 问题3 得2 分，满分2 分 3、- _______ - You too! 答案 所选答案： A：Merry Christmas! 问题4 得2 分，满分2 分 4、- Good-bye for now. - _________ 答案 所选答案： C：See you. 问题5 得2 分，满分2 分 5、--Excuse me, could you tell me how to get to the post office? -- _____________. 答案 所选答案： D：Sorry, but I am a stranger here myself
问题6 得2 分，满分2 分 6、- How do I get to the cinema? - _________ 答案 所选答案： D：Go down this street and turn left. 问题7 得2 分，满分2 分 7、- Is it possible for you to work late tonight? - _______ 答案 所选答案： D：I think so. 问题8 得2 分，满分2 分 8、-- May I use your bike for a moment? -- ________ 答案 所选答案： C：By all means. 问题9 得2 分，满分2 分 9、-- Congratulations! You won the first prize in today's speech contest. -- ________ 答案 所选答案： C：Thank you. 问题10 得2 分，满分2 分 10、- How are you, Bob? - _______ 答案 所选答案： B：I'm fine. Thank you 问题11 得2 分，满分2 分 11、-- Would you like to go to the concert with us this evening? -- ________ 答案 所选答案： B：I'd love to, but I'm busy tonight. 问题12 得2 分，满分2 分
本次作业是本门课程本学期的第3次作业，注释如下：大学英语II 第3单元作业题 一、单项选择题(只有一个选项正确，共40道小题) 1. –What time is it? –____________________. (A) My watch keeps good time (B) My watch is five minutes fast (C) My watch says three o’clock (D) I say three o’clock 你选择的答案： [前面作业中已经做正确] [正确] 正确答案：C 解答参考：[第三单元] 本题问句是“现在几点钟”，C项“我的表是三点钟”。A项“我的表走时准确”，B项“我的表快五分钟”，D项“我说是三点钟”都不符合习惯表达法。 2. –Could you tell me the time, please? –____________________. (A) Yes, I can (B) No, I can’t (C) It’s four thirty (D) It’s Friday 你选择的答案： [前面作业中已经做正确] [正确] 正确答案：C 解答参考：[第三单元]C 本题仍是问时间，回答应该直接告诉对方时间，故C项正确。 3. –What day is tomorrow? –Today is Tuesday. So it’s________. (A) Monday (B) Wednesday (C) Thursday (D) Saturday 正确答案：B 解答参考：[第三单元]B 本题问“明天是星期几”，回答“今天是星期二，所以明天是星期三”。 4. –When is your birthday? –____________________. (A) It’s April 18th (B) It’s Sunday (C) It’s August (D) I was born in 1988
第1章 7、讨论以下观点是否正确：看涨期权空头可以被视为其他条件都相同的看跌期权空头与标的资产现货空头（其出售价格等于期权执行价格）的组合。 (1) 9、如果连续复利年利率为5%，10000元现值在4.82年后的终值是多少？ (1) 10、每季度记一次复利年利率为14%，请计算与之等价的每年记一年复利的年利率和连续复利年利率。 (1) 11、每月记一次复利的年利率为15%，请计算与之等价的连续复利年利率。 (1) 12、某笔存款的连续复利年利率为12%，但实际上利息是每季度支付一次。请问1万元存款每季度能得到多少利息？ (1) 7.该说法是正确的。从图1.3中可以看出，如果将等式左边的标的资产多头移至等式右边，整个等式左边就是看涨期权空头，右边则是看跌期权空头和标的资产空头的组合。 9.()5%4.821000012725.21e ××=元 10.每年计一次复利的年利率=（1+0.14/4）4-1=14.75% 连续复利年利率=4ln(1+0.14/4)=13.76%。 11.连续复利年利率=12ln(1+0.15/12)=14.91%。 12.12%连续复利利率等价的每季度支付一次利息的年利率=4（e 0.03-1）=12.18%。 因此每个季度可得的利息=10000×12.8%/4=304.55元。 第2章 1、2007年4月16日，中国某公司签订了一份跨国订单，预计半年后将支付1000000美元，为规避汇率风险，该公司于当天向中国工商银行买入了半年期的10000000美元远期，起息日为2007年10月8日，工商银行的实际美元现汇买入价与卖出价分别为749.63和752.63。请问该公司在远期合同上的盈亏如何？ (1) 2、设投资者在2007年9月25日以1530点（每点250美元）的价格买入一笔2007年12月到期的S^P500指数期货，按CME 的规定，S^P500指数期货的初始保证金为19688美元，维持保证金为15750美元。当天收盘时，S^P500指数期货结算价为1528.90，该投资者的盈亏和保证金账户余额为多少？在什么情况下该投资者将收到追缴保证金通知？ (1) 3、一位跨国公司的高级主管认为：“我们完全没有必要使用外汇远期，因为我们预期未来汇率上升和下降的机会几乎是相等的，使用外汇远期并不能为我们带来任何收益。”请对此说法加以评价。 (1) 4、有时期货的空方会拥有一些权利，可以决定交个的地点，交割的时间以及用何种资产进行交割等。那么这些权利是会正佳还是减少期货的价格呢？请解释原因 (1) 5、请解释保证金制度如何保护投资者规避其面临的违约风险。 (1) 6、“当一份期货合约在交易所交易时，会使得未平仓合约总数有以下三种变化的可能：增加一份，减少一份或者不变。”这一观点正确吗？请解释。 (1) 1.2007年4月16日，该公司向工行买入半年期美元远期，意味着其将以764.21人民币/100美元的价
大学英语（二） 开始时间2016年12月12日星期一20:46 状态完成 完成于2016年12月12日星期一21:24 耗时38 分钟26 秒 分数26.00/30.00 成绩86.67/满分100.00 窗体顶端 题目1 正确 获得1.00分中的1.00分 标记题目 题干 He _______ lives in the house where he was born. 选择一项： a. ever b. yet c. still d. already 反馈 正确答案是：still 题目2 不正确 获得1.00分中的0.00分 标记题目 题干 Measles ________ a long time to get over. 选择一项：
a. spend b. take c. takes d. spends 反馈 正确答案是：takes 题目3 正确 获得1.00分中的1.00分 标记题目 题干 It is _______ for people to feel excited when they start doing something new. 选择一项： a. average b. ordinary c. regular d. .normal 反馈 正确答案是：.normal 题目4 正确 获得1.00分中的1.00分 标记题目 题干 If she wants to stay thin, she must make a _____ in her diet. 选择一项：
a. change b. turn c. go d. run 反馈 正确答案是：change 题目5 正确 获得1.00分中的1.00分 标记题目 题干 They were all very tired, but _______of them would stop to take a rest. 选择一项： a. some b. neither c. none d. any 反馈 正确答案是：none 题目6 正确 获得1.00分中的1.00分 标记题目 题干 If we could learn English in the same _______, it would not seem so difficult. 选择一项：