单选题{{I}} Questions 14-19 are based on the following conversation. You now have 30 seconds to read the questions 14-19.{{/I}}

单选题Whatdidthemanthinkofthefoodattheschoolrestaurant?

单选题According to Hellman, we know that ______.

单选题{{I}} Questions 22～25 are based on the following dialogue.{{/I}}

单选题 {{B}}Text{{/B}} {{U}} (26) {{/U}}Space Agency is planning to{{U}} (27) {{/U}}a spacecraft to the planet Mars. The spacecraft will be called Mars Observer. The project was to have{{U}} (28) {{/U}}place in 1990. But it has been postponed. The Space Agency now{{U}} (29) {{/U}}to send the spacecraft to Mars in 1992. The Mars Observer is to{{U}} (30) {{/U}}from an America's space shuttle. It will then{{U}} (31) {{/U}}around tile North and South Poles of Mars. The spacecraft will have cameras to{{U}} (32) {{/U}}pictures of the atmosphere and surface of Mars. Its major task is to look{{U}} (33) {{/U}}signs of life. The last voyage{{U}} (34) {{/U}}Mars was in 1976. That was{{U}} (35) {{/U}}the two American Viking spacecrafts land- ed on the planet. The next voyage was planned{{U}} (36) {{/U}}1988 by the Soviet Union. America's Mars Observer Project will{{U}} (37) {{/U}}about $ 25.000.000. The high cost is one reason the Space Agency postponed the project. A{{U}} (38) {{/U}}of scientists have criticized that decision. Carl Sagan of Cornell university{{U}} (39) {{/U}}it "a great mistake". And the head of the Planetary Society said the project should not be postponed now{{U}} (40) {{/U}}it appears to{{U}} (41) {{/U}}support in Congress. Congress must{{U}} (42) {{/U}}money for it. Some scientists have proposed a solution that would save{{U}} (43) {{/U}}time and money. They say the Mars Ob- server be launched in 1990{{U}} (44) {{/U}}planned, but on a traditional rocket{{U}} (45) {{/U}}of the space shuttle.

单选题The expression "get across to children" in the last paragraph probably means______.

单选题 {{B}}Darry{{/B}} Darry is 45 years old and a mother of three children. Jeff, the oldest, is a junior at a state university. Nora is 17 and in her senior year of high school. The youngest child, Kevin, is 13 and in eighth grade. Her husband Bob is a sales representative for a pharmaceutical firm. Bob has been transferred many times during his career which has caused the family to move often. But now he is based at the company' s home office. She worked as a nurse before she became a mother, she worked on and off as part-time nurse for a home nursing agency while she was raising the children. One of her regrets is that she never was able to attain a college degree. She tried many times to take a night class while the children were younger. However, Bob' s travel schedule and the hassle of finding baby sitters became major barriers. Lately, she has considered returning to school. There is a community college 20 minutes from her home. She doesn' t know what program of study she would like to pursue. Her one major reservation is her concern for Kevin, the youngest. She also worries about Nora, who lately has been giving too much attention to her social life and less to her studies. {{B}}Sun{{/B}} Sun is a 76-year-old stroke victim. At the age of 70, she was stricken with a massive stroke that left her paralyzed on the right side and without speech. Sun could comprehend messages most of the time but could not express her feelings verbally. Before the stroke she worked part-time at the Chicago Cultural Center, attended lessons at the Art Institute of Chicago, and pursued the study of piano at the Fine Arts Conservatory of Chicago. She cherished her family. The most important people in her life were her son Ted and her daughter Mafia. {{B}}Ye Min{{/B}} Ye Min is 69 years old. She recently became widowed. Ye Min had been married to her husband Walter for 49 years. Walter died suddenly from a heart attack. Ye Min and Walter had a very good marriage. They were planning a cruise for their fiftieth wedding anniversary. She has three adult children: Sarah, 46 years old, David, 44 years old, and Justin,32 years old. Sarah and David are both married and are raising families. Justin is single. She has a part-time job at a local bakery. She works three times a week as a salesperson. Her life has changed greatly since Walter died. Friends who have their spouses seldom include Ye Min in their social plans since Walter died. Although Ye Min and Walter were close, she also has thought of herself as highly independent. She has ambivalent feelings about living alone.{{I}} Now match each of the persons with the appropriate statement. Note: there are two extra statements. {{/I}} {{B}}statements{{/B}} [A] Nothing is more important than marriage and family for her. [B] She sacrificed a lot of herself for her children and family. [C] She had been taking an active part in life before she became disabled. [D] She had too many worries. [E] She used to have a good marriage.

单选题 Every year for more than a decade I've gone with some good male friends to the music festival. Women are not invited, but they do prepare a picnic for our trip. The better the food, the more likely we are to continue our annual tradition and give them peace at least one week out of the year. When we're not eating, we sit around in circles and talk about manly stuff: women, mostly. After years of this special journey I have figured out women are different from us, especially when it comes to how we communicate. Women don't need to manufacture reasons to chat, but guys need excuses like outings or organized events. And I've noticed that when women are in groups there can be several conversations going on at once. When men are in a group, one man talks, and everybody else listens. It's like bluegrass jamming in a way; one musician plays the lead, and the rest try to follow. I've had more heartfelt conversations with other men at the festival than I've had at any other time in my life, partly because there are no women there, and partly because we're all a little drunk. It was males bonding over whatever parts we still had left. The festival is also the only place I've ever cried in front of other men. As the years have slipped by, some in our group have lost parents and grandparents, some have divorced, and others have changed careers, not always on purpose. It seems that every year something distressing has happened to at least one member of our crew, and the rest of us are there to listen and offer support. I hope that this column can offer some comfort to women: if your man heads out on a bowling or poker night with the guys, be happy. Chances are good he's not fleeing you and the kids, hut he's running toward the conversations he can only have with other men, and he'll come home the better for it.

单选题

单选题Which of the following concerning the internal clock structure is NOT tree?