单选题{{B}}TEXT C{{/B}} Of the six outer planets, Mars, commonly called the Red Planet, is the closest to Earth. Mars, 4,200 miles in diameter and 55% of the size of the Earth, is 34,600,000 miles from the Earth, and 141,000,000 miles from the Sun. It takes this planet, along 0with its two moons, Phoboes and Deimos, 1.88 years to circle, the Sun, compared to 365 days from the Earth. For many years, Mars had been thought of as the planet with the man made canals, supposedly discovered by an Italian astronomer, Schiaparelli, in 1877. With the United States spacecraft Viking I's landing on 'Mars in 1976, the man-made canal theory was proven to be only a myth. Viking I, after landing on the soil of Mars, performed many scientific experiments and took numerous pictures. The pictures showed that the red color of the planet is due to the reddish, rocky Martian soil. No biological life was found, though it had been speculated by many scientists. The Viking al so monitored many weather changes including violent dust storms. Some water vapor, polar ice and permafrost were found, indicating that at one time there were significant quantities of water on this distant planet. Evidence collected by the spacecraft shows some present volcanic action, though the volcanoes are believed to be dormant, if not extinct.

单选题{{B}}TEXT B{{/B}} Every year, 2,000 American lives are saved by the selflessness of others. These are the bone marrow donors who give the gift of life to patients fighting deadly diseases such as leukemia, lymphoma, and aplastic anemia. That's the good news. The bad news is that thousands more die each year because not enough people have signed on to the registries that would help the ill find a suitable match for a transplant. Bone marrow or stem-cell transplants are usually a last resort, intended for those whose illnesses have not responded to traditional treatments such as chemotherapy or radiation. How do they work? We all store a special type of cell in our bone marrow called stem cells. These primitive cells give rise to the three types of blood cells: red, white and platelets. Everyone's stem cells have certain genetic characteristics or markers that make them unique from others. Despite this uniqueness, there are some shared characteristics between people. This is important, because a patient's immune system will reject blood or organs received from someone else if they do not share sufficient similarities. Family members, especially siblings, are always the first to be considered as donors, because there's a greater chance that the genetic markers on their cells will have enough in common to prevent rejection after transplantation. In many cases, however, a familial match can't be found and then the search begins for an unrelated donor. These donors typically come from a pool of people who have already signed up on a donor registry in the event that their cells match a needy recipient. Once the lab has verified a match between donor and recipient, the next phase starts. The patient is given radiation or chemotherapy to kill the unhealthy cells. Healthy cells are harvested from the donor — either extracted from the pelvic bones or taken from the arm in a way that is similar to having blood drawn — and prepared in a laboratory. Once they're ready, they're given to the patient through a vein — the same way as one would receive a blood transfusion. Once these transplanted donor cells get settled within the patient's bone marrow, they make the healthy red blood cells, white blood cells and platelets necessary to support life. One of the major problems currently faced by transplant centers is that while bonemarrow transplants can cure more than 70 different diseases, there aren't enough donors on the registry to treat the more than 3,000 patients awaiting transplants. The National Marrow Donor Program, the largest registry in the country, has approximately 4.8 million adult volunteer donors, but that isn't nearly enough for the thousands who need transplants. Why isn't a pool of more than 4 million donors isn't enough to cover 3,000 needy patients? Here's the reason: in the vast-majority of cases, finding a suitable match isn't easy. Because we are unique individuals with a variety of ancestral backgrounds and integration patterns, finding someone similar to us is a major task. In the end, it comes down to a numbers game — the more potential donors listed on the registry, the greater a chance of finding a match, especially for those with unusual genetic characteristics.

单选题Every child under 16 in this country has to attend school because education is ______.A. compulsiveB. compulsoryC. compulsionD. compulsing

单选题The speaker seems to have no ______ ideas; his speech was full of platitudes. A. true B. original C. real D. genuine

单选题 In Sections A, B and C you will hear everything once only. Listen carefully and then answer the questions that follow. Mark the correct answer to each question on your ANSWER SHEET.{{B}}SECTION A CONVERSATIONS{{/B}} In this section you will hear several conversations. Listen to the conversations carefully and then answer the questions that follow. Questions 1 to 3 are based on the following conversation. At the end of the conversation, you will be given 15 seconds to answer the questions. Now listen to the conversation.

单选题What does "He wisely refused to spend his money." mean?A. It was wise of him to refuse to spend his money.B. He refused to spend his money in a wise manner.C. He was short of money and didn't want to buy anything.D. He refused, in a wise manner, to spend his money.

单选题Why is the man moving to Haworth?

单选题We'd rather you ______ the account tomorrow.

单选题I ______ him the Christmas gift by mail because he came home during the Christmas holidays. A. ought to have sent B. couldn't have sent C. must have sent D. needn't have sent

单选题How warm parents are with their children has a strong influence on the childrens personalities. Boy who are highly masculine, for example, tend to see their fathers as very warm and regarding. The warmth of both parents tends to lead to more feminity in girls. The influence of the fathers seems to be more important, since fathers generally treat male and female children differently as compared to mothers who treat male and female children in a more similar manner.

单选题At the dinner held in his honor, Miller ______ a toast to the lasting friendship of his former classmates.

单选题 Decide which of the choices given below would best complete the passage if inserted in the corresponding blanks. Mark the best choice for each blank on your ANSWER SHEET. The effect of the baby boom on the schools helped to make possible a shift in thinking about the role of public education in the 1920's. In the 1920's, but especially in the Depression of the 1930's, the United States experienced a {{U}}(31) {{/U}} birth rate. Then with the prosperity {{U}}(32) {{/U}} by the Second World War and the economic boom that followed, young people married and {{U}}(33) {{/U}} households earlier and began to {{U}}(34) {{/U}} larger families than had their {{U}}(35) {{/U}} during the Depression. Birth rates rose to 102 per thousand in 1946, 106.2 in 1950, and 118 in 1955. {{U}}(36) {{/U}} economics was probably the most important {{U}}(37) {{/U}} , it is not the only explanation for the baby boom. The increased value placed {{U}}(38) {{/U}} the idea of the family also helps to {{U}}(39) {{/U}} this rise in birth rates. The baby boomers began streaming {{U}}(40) {{/U}} the first grade by the mid-1940s and became a {{U}}(41) {{/U}} by 1950. The public school system suddenly found itself {{U}}(42) {{/U}} The wartime economy meant that few new schools were built between 1940 and 1945. {{U}}(43) {{/U}}, large numbers of teachers left their profession during that period for better-paid jobs elsewhere. {{U}} (44) {{/U}} , in the 1950s, the baby boom hit an antiquated and {{U}}(45) {{/U}} school system. Consequently, the custodial rhetoric of the1930s no longer made {{U}}(46) {{/U}} ; keeping youths aged sixteen and older out of the labor market by keeping them in school could no longer be a high {{U}}(47) {{/U}} for an institution unable to find space and staff to teach younger children. With the baby boom, the focus of educators {{U}}(48) {{/U}} turned toward the lower grades and back to basic academic skills and {{U}}(49) {{/U}} The system no longer had much {{U}}(50) {{/U}} in offering nontraditional, new, and extra services to the older youths.

单选题She managed to save ______ she could out of her wages to help her brother. A. how little money B. so little money C. such little money D. what little money

单选题

单选题The newly-built principal museum seems ______ enough to last a hundred years.

单选题Her ______ to executive manager is an acknowledgment of her hard work and unusual talent. A. occupation B. profession C. resignation D. promotion

单选题She was complaining that the doctor was ______ too much for the treatment he was giving her.A. expendingB. offeringC. costingD. charging

单选题Questions 28 and 29 are based on the following news. At the end of the news item, you will be given 10 seconds to answer the questions. Now, listen to the news.