根據(jù)下面內(nèi)容，回答題：

　　Banks are not ordinarily prepared to pay out all accounts; they rely on depositors( 剪刀 )not todemand payment all at the same time. If depositors should come to fear that a bank is not safe, that itcannot pay off all its depositors, then that fear might cause all the depositors to appear on the sameday. If they did, the bank could not pay all accounts. However, if they did not all appear at once, thenthere would always be enough money to pay those who wanted their money when they wanted it. Mrs.Elsie Vaught has told us of a terrifying bank run that she experienced. One day in December of 1925several banks failed to open in a city where Mrs. Vaught lived. The other banks expected a run thenext day, and so the officers of the bank in which Mrs. Vanght worked as a teller had enough moneyon hand to pay off their depositors. The officers simply told the tellers to pay on demand. The nextmorning a crowd gathered in the bank and on the sidewalk outside. The length of the line made manythink that the bank cohld not possibly pay off everyone. People began to push and then to fight for places near the tellers' windows. The power of the panic atmosphere was such that two tellers, thoughthey knew that the bank was quite all right and could pay all depositors, drew their own money fromthe bank. Mrs. Vaught says that she had difficulty keeping herself from doing the same.

　　40A bank run happens when __________ .

　　A.a bank is closed for one or more daysB.too many depositors try to draw out their money at one timeC.there is not enough money to pay all its depositors at one timeD.tellers of a bank take their own money from the bank

　　參考答案：B

　　參考解析：

　　文中第五句中“a terrifying bank run”的意思是“可怕的銀行擠兌”，而本題的題干是問銀行擠兌是在什么情況下發(fā)生，根據(jù)文章的解釋，可知答案為B項(xiàng)。

　　41The main cause of a bank run is__________ .

　　A.loss of confidenceB.lack of moneyC.crowds of peopleD.inexperienced tellers

　　參考答案：B

　　參考解析：

　　本題的題干是問“發(fā)生銀行擠兌的主要原因”就是許多人都認(rèn)為銀行拿不出錢來，即資金缺乏。

　　42Which of the following did Mrs. Vaught say?

　　A.She knew that the bank was not sound.B.She feared that too many depositors drawing their money would close the bank.C.She was not able to draw out her money.D.She was tempted to draw out her money.

　　參考答案：D

　　參考解析：

　　文章最后一句話告訴我們，“Mrs.Vaught覺得很難控制自己不去將自己的錢取出來”，因?yàn)楫?dāng)時(shí)的氣氛非�？只�，所以D項(xiàng)正確。

　　43According to the passage, the actions of the depositors of Mrs. Vaught's bank were affect-ed mainly by the __________ .

　　A.ease with which they could get their moneyB.confidence that Mrs. Vaught showedC.failure of several other banks to openD.confidence shown by other depositors of the bank

　　參考答案：C

　　參考解析：

　　由文章可知“一些銀行沒有開門”，所以這就是為什么許多人跑到開門的銀行去取錢。

　　根據(jù)下面內(nèi)容，回答題：

　　Copernicus was born in Torun, Poland, on February 19,1473. Little is known about his early lifeexcept that his father died when he was 10. An uncle adopted him, his two sisters, and his brother.The uncle saw to it that the two boys received a good education. Copernicus went to the University ofCracow. There he studied such subjects as Latin, mathematics, and astronomy. It was probably at thattime that he changed his Polish name, Niklas Kopperuigk, to the Latin form of Nicolaus Copernicus.In 1496 Copernicus went to Italy,where he spent the next 10 years studying at various universities.In Copernicus' time people still believed that all things--the sun, the stars, and the planetsmoved around the earth. It was an old belief that few men had ever questioned. Aristotle had basedhis theory of astronomy on this belief. Because the Church had long been the center of learning, thetheory was also linked to religious beliefs.

　　In 1506 Copernicus returned to his homeland. A few years later he began to work for the Church.All those years Copernicus carried on his work in astronomy. He had just the most basic equipmentand, like other scientists of his day, made observations with only his eyes. Still, using mathematics andlogic ,Copernicus worked out a different theory,which held that the planets went around the sun.

　　Copernicus did not announce his ideas. He did not want to make trouble. But he could not hidethe scientific truth. So he talked about his theory with his friends, who strongly advised him to have his work published. His great book, On the Revolutions of the Heavenly Bodies, appeared at the veryend of his life. Copernicus saw the first copy on the day he died, May 24,1543.

　　44From the passage we can see that astronomy is __________ .

　　A.the life experience of great menB.the movement of the stars and the planets ,C.the scientific study of natural objects in spaceD.the theories developed by scientists of old times

　　參考答案：C

　　參考解析：

　　從哥白尼學(xué)的是天文學(xué)(astron.omy)，研究的是太空中的太陽、地球等可知，astronomy就是對(duì)太空中天體的研究。

　　45Copernicus developed his theory __________ .

　　A.using various telescopesB.based on Aristotle's beliefsC.through observations and reasoningD.under the encouragement of his friends

　　參考答案：C

　　參考解析：

　　根據(jù)文章中第三段最后兩句可知，哥白尼是通過眼睛觀察以及數(shù)學(xué)和邏輯的方法來進(jìn)行研究的。

　　46The writer of the passage wants us to know that__________ .

　　A.Copernicus did not tell about his discovery until the day of his deathB.for many years Copernicus dared to do nothing openly against the ChurchC.pushed by his friends Copernicus decided to write a book in May 1543D.shortly before he got back to Poland Copernicus started to work for the Church

　　參考答案：B

　　參考解析：

　　根據(jù)文中第四段第一句可知，哥白尼起初沒有將他的發(fā)現(xiàn)公布于世。

　　47Copernicus had his great book published because __________ .

　　A.he didn't agree with AristotleB.he could not hide the scientific truthC.he worked for the ChurchD.his friends advised him to do so

　　參考答案：D

　　參考解析：

　　文章第四段第四句表明，哥白尼在朋友的建議下出了書。