要想拿下学位证书，就不要考虑太多，去做就行了小编为参加学位英语考试的伙伴们准备了学位英语考试自测习题及答案，大家多做题有助于提升语感和做题速度。
Leaving a tip in a restaurant has become a custom in most countries. The word “tip” came from the Latin word “Gratis”， meaning free. Tips are defined as small gifts of money for service in addition to the payment due.
Believe it or not， the practice of tipping has a little interesting history. The custom can be traced back to the Roman era. The Romans were the first civilization to use coins. It is possible that the word “tip” came from the word stipend. Strips in Latin means gift. A more common belief is tips were first given in the 18th century England. A popular coffee house equipped each table with a coin box. The label of each box read： “To insure promptness.” Dropping a coin into the box would result in quick service. Also， the first letter of each word is T.I.P. – tip.
In America and Europe it is customary to tip anywhere from 10% to 20%. Taxi drivers， waiters in restaurants， waitresses in lounges， hotel boys， doormen， and disco coat check girls， all expect a little something. People working at these jobs usually receive a low basic salary. Tips are quite necessary to supplement their income. Today most people decide the size of tip according to the quality of the service. If the service is good ，most people are quite happy to leave a tip.
The world is full of big spenders and people who act like big spenders. Surprisingly， rich people are not “big tippers” unless entertaining guests. It is no use showing off if nobody is there to watch， right? Many throw money around like water to impress a group of friends out for an evening “on the town”。 People who usually cannot afford it are the biggest tippers in front of their friends. It is all part of the show to prove a certain level of social success. Nobody wants to look cheap， stingy， or poor in front of their friends. Over-tipping also gives some satisfaction just to see the waiter‘s reaction.
For whatever reason， tipping will continue to be practiced in most countries. Tipping does have its place in our modern society. It will also remain a somewhat personal expression of gratitude.
21. What is the meaning of the word “gratis” according to the passage?
A) free of obligation B) free of charge C) plenty in time D) free from tax
答案：A
解析：B是免于C是充足的时间D是免于征税，A是责任义务的免除。根据文章对消费的介绍选择A相比较妥帖。
22. When were tips first given in England
A) in the 17th century B) in the 18th century
C) in the 19th century D) in the 20th century
答案： B
解析： 细节题，第2段的第四句中A more common belief is tips were first given in the 18th century England其它的选项是错误的
23. Which of the following statements is true?
A) Most people think that tips originated in England.
B) Most people think that tips originated in Rome
C) Today most people decide the size of tips according to their mood.
D) According to the author， the practice of tipping does not have an interesting history
答案： A
解析： 推论题。第2段的。2句是说这个习惯追溯到罗马但是大家普遍认为的是在英国，理由同上。
24. How to understand the sentence “The world is full of big spenders and people who act like big spenders.”?
A) All people in the world have a lot of money.
B) No one in the world has a lot of money.
C) Many people spend a large sum of money every day.
D) The number of people who either have a lot of money or who pretend to be rich is great.
答案： D
解析： A、B明显是错误的!C和文章没有联系，主要是说一些有钱的和貌似有钱的人在消费上面的表现。C不能体现出该要表达的含义。
25. Why are people who cannot afford tipping the biggest tippers in front of their friends?
A) Because they have a lot of money.
B) Because they sympathize with taxi drivers， waiters in restaurants， waitresses in lounges and disco coat check girls， etc.
C) Because of their vanity.
D) None of the above.
答案： C
解析： vanity是虚荣奢华的含义，后2段主要说。 It is all part of the show to prove a certain level of social success. Nobody wants to look cheap， stingy， or poor in front of their friends是说没有钱人的虚荣!C应该是合适的答案。
The current generation of parents must， in many cases， balance care of children with care for their own aging parents. It is estimated that women can now expect their mothers to live 55 years after their own birth and 30 to 40 years after the birth of their first child， many analysts suggest that this added pressure disproportionately touches the women， who already carry major responsibility for their own children.
Perhaps the most important issue that emerges from the social trends just described is the impact of family instability and single parenting on children. Some argue that single-parent families are a deficient form of family functioning. Others see them as a courageous， desirable alternative to unhappy two-parent families.
On average， kids fare better in two-parent families. But a sizable percentage of children in single parent families thrive， and many in two-parent families do not， what matters most – regardless of family structure – is what happens within the family.
Particularly important is the family‘s ability to support and nurture， minimize conflict， practice democratic decision making， provide consistent and positive forms of discipline and mode， and encourage values of caring and responsibility. Families should also provide access to structured activities (e.g.church participations， clubs， organizations， lessons) and a stimulating environment for learning (including parental involvement in schooling)。 While it is somewhat easier to deliver these in two-parent families， some single-parent families do succeed by drawing on informal and formal support systems from neighborhoods， schools， and churches.
26. The current generation of parents shoulder a heavy pressure ___.
A. since they carry major responsibility for their own children.
B. because in many cades they must balance care of children with care for their own aging parents.
C. they must burren lots of work in family.
D. because they hardly obtain any help from others
答案： B
解析： 细节题。文章的一、段一、句就是该题的答案，主要说作为母亲在家庭里面在孩子和对他们的老父母之间的权衡利弊。
27. Perhaps the most important issue that emerges from the social trends is ___.
A. the deficiency of single-parent families.
B. whether single-parent families can be regarded as a courageous， desirable alternative to unhappy two-parent families.
C. the impact of family instability and single parenting on children.
D. the poverty of the single-parent families.
答案： C
解析： 细节题。第2段的一、句就是这题的答案，要大家对细节仔细的把握，该句的意思是说：当今社会出现的家庭的不稳定性的单身家庭的出现对孩子这代的严重冲击。
28. On average， kids fare better in two-parent families， while ___.
A. many of them are not so obedient.
B. a sizable percentage of children in single-parent families thrive.
C. what happens within the family really matters.
D. children in single-parent families are not well fed.
答案： B
解析：细节题。第2段的后两句，意思是说在也有一定比例的单身家庭里面的孩子，生活学习也有进步。
29. All the following statements are mentioned as the important family abilities EXCEPT ___.
A. try to avoid the conflict.
B. decisions are always made democratically.
C. encourage the qualities of caring and responsibility.
D. make sure to monitor the fulfillment of each one‘s duty.
答案： D
解析：D的意思是说务必监视每个人的责任的履行。后一段的一、句分别提到了A，B，C项的内容。只有第4项的内容没有涉及。
30. In what way can the single-parent families succeed in participating in the structured activities?
A. By providing access to church participation， clubs， etc.
B. By drawing on support systems from various kinds of organizations.
C. By taking part in parental involvement in schooling.
D. By following the two-parent families
答案： B
解析：细节题。在文章的后一句，是说利用那些来自邻居教堂和社会正式和非正式的援助informal and formal support systems from neighborhoods， schools， and churches.
Hyperinflation (极度通货膨胀)is defined as an economic condition during which there is a steep increase in prices. In accordance with the laws of economics， three factors combine to create this condition. First， demand must be much greater than the supply of available goods. Second， the country must continuously create and thereby build up an ever increasing supply of money. Third， the governmental processes that are used to collect taxes must be crippled. Let‘s imagine a country where production is barely accomplishing its goal to keep up with demand. When this happens， the government should decrease the salaries of the workers by raising taxes. But the government is powerless to collect the taxes， so it prints more money to compensate for(补偿)the goods it must purchase. This new money goes to the workers who produced the goods： as a result， the people are not forced to give up certain things for a while – they actually become richer. While this might appear to be a positive step， it is actually regressive. Every month the government is forced to print more and more money， thereby increasing its liabilities (债务) until it is destroyed. The only way to prevent total economic collapse in such a situation is for the government to increase taxes in a manner that is characterized by impartiality (公正) to everyone involved.
大意：主要是说明了经济的的宏观调控政策比如：调控市场供求关系。或是货币的发行来调节市场。
31. Which of the following might occur during hyperinflation?
A. A slight increase in prices.
B. Rapid growth of economy.

C. Decrease of workers‘ salary.
D. Soaring prices.
答案：D
解析：细节题。文章的一、段的第1句increase in prices是物价飞涨的意思Soaring prices的意思和这是一样的。
32. The author states that during hyperinflation ___.
A. goods appear to be overabundant.
B. the country has to supply more money.
C. government may become richer by collecting more taxes.
D. people are forced to give up certain things
答案：B
解析：细节题。问题是通货膨胀的时候应该用什么样的货币政策，Second， the country must continuously create and thereby build up an ever increasing supply of money可以知道这道题的答案。
33. The passage implies that ___.
A. hyperinflation is just a passing phase in the economic development.
B. people could benefit a lot from hyperinflation.
C. hyperinflation is used by a government to raise taxes.
D. hyperinflation may cause the downfall of a government.
答案：D
解析：推论题。文章的第7句可以知道，当出现通货膨胀时候在税收和商品的补偿上要付出一定的代价。因而一定产生downfall下降的效应。
34. The word “regressive” probably means ___.
A. harmful. B. negative. C. going back. D. progressive
答案：B
解析：A是有害的C是倒退，D是进程的意思，B是否定的、反作用的意思，While this might appear to be a positive step， it is actually regressive.另外这是个转折句关系，应该和positive相反。