【正文】 mathematics． His uncle told him to solve mathematical problems by pretending to be a policeman． “You are looking for someone”， he said， “but you do not know who． Call him X． Find him by using the mathematical tools of algebra and geometry． ’’ 21． When the General Theory of Relativity was put forward， Einstein was__________ years old． A． 39 B． 26 C． 36 D 42 22． What can we know from the third and fourth paragraph? A． Einstein’s father enjoyed music and books． B． Einstein’s family observed all the religion’s rules． C． Einstein’s father ran a plant making electrical equipment． D． Einstein was quiet but talkative when he was young． 23． What made Einstein curious when he was young? A． His father’s factory． B． The mathematics． C． The pass needle always pointing north． D． The General Theory of Relativity． B Oxford University is the oldest university in Britain and one of the world’s most famous institutions ． Oxford University ， which is in Oxford ， England ， about 50 miles(80 kilometers)northwest of London， started to develop during the 1100s and the university has over l6,300 students(1999—2021)， with 38 colleges plus 7 private halls established by various religious groups． Three of the 7 private halls are for men only． Of the colleges， St． Hilda’s and Somerville are for women， and the rest are for men and women． At Oxford， each college is a corporate body and is governed by its own head and fellows． Most fellows are college instructors called tutors， and the rest are university professors and lecturers． Each college manages its own buildings and property， elects its own fellows， and selects and admits its own undergraduate students． The university provides some libraries，laboratories， and other facilities， but the colleges take primary responsibility for the teaching． Each student at Oxford is assigned to a tutor， who supervises the student’s course of study，primarily through tutorials． Tutorials are weekly meetings of one or two students with their tutor． Students may see other tutors for specialized instruction． They may also attend lectures given by university teachers． Students choose which lectures to attend on the basis of their own special interests and on the advice of their tutors． During the 1100s， a university gradually developed from a number of schools in the city of Oxford． The university received its first official recognition in 1214． The three oldest Oxford colleges—University, Balliol， and Merton—date from the 1200s． Twelve more colleges were founded between 1300 and 1555． The first colleges for women were established during the late 1800s． The university did not grant degrees to women until 1920． 24． What can we learn about Oxford University from the first paragraph? A． It is the most famous university in the world． B． It was founded less than one thousand years ago． C． Men and women can be admitted in any college． D． Two of the 7 private halls are for women only． 25． Which of the following is the most important responsibility for the college? A． Managing its property． B． Electing its own leaders． C． Admitting its students． D． Teaching its students． 26． The underlined word“ supervises’’ in the third paragraph can be replaced by“__________”． A． chooses B． directs C． changes D． passes 27． Students choose the lectures given by university teachers according to__________． A． the arrangement of the university B． their own interest and the advice of their tutors C． the needs of future career D． the order of the tutors C A small piece of fish each day may keep the heart doctor away． That’s the finding of a study of Dutch men in which deaths from heart disease were more than 50 percent lower among those who consumed at least an ounce of saltwater fish per day pared to those who never ate fish． The Dutch research is one of three human studies that give strong scientific support to the long held belief that eating fish can provide health benefits， particularly to the heart． Heart disease is the numberone killer in the United States， with more than 550,000 deaths occurring from heart attacks each year． But previous research has shown