单选题"Block patrol (巡逻，巡逻队)," "community watch" "civilian patrol. " They may have different names in different cities across the country but they all are civilian volunteer groups that help police department in major metropolitan (大城市的) areas. In the volunteer groups, men and women are trained by local police to watch for potential trouble in their neighborhood. Spotting a suspicious looking vehicle or person can help police to fight crime in the neighborhood. Aside from keeping an eye on the neighborhood, volunteers often perform other duties. Civilian volunteers may work at parades or other types of gatherings, freeing the police to do their main job—catching criminals. Volunteers in some cities also conduct surveys to make people aware of ways that they can protect themselves from being crime victims. Some volunteers help people to engrave identification numbers on their personal property. Such a number would make the retrieval (追回) of a stolen item easier. Other volunteers watch children who may need help going to and from school. If you are interested in becoming a part of the volunteer group in your area, contact your local police department.

单选题I don't think it advisable that Tom ______ to the job since he is too young. A. is assigned B. be assigned C. will be assigned D. has been assigned

单选题If the United States had not entered the Second World War, probably the unemployment rate ______ still further. A. would rise B. should rise C. would have risen D. had risen

单选题Some psychologists maintain that mental acts such as thinking are not performed in the brain alone, but that one's muscles also participate. It may be said that we think with our muscles in somewhat the same way that we listen to music with our bodies. You surely are not surprised to be told that you usually listen to music not only with your ears but with your whole body. Few people can listen to music that is more or less familiar without moving their body or more specifically, some part of their body. Often when one listens to a symphonic concert on the radio, he is tempted to direct the orchestra even though he knows them is a competent conductor on the job. Strange as this behavior may be, there is a very good mason for it. One cannot derive all possible enjoyment from music unless he participates, so to speak, in its performance. The listener "feels" himself into the music with more or less noticeable motions of his body. The muscles of the body actually participate in the mental process of thinking in the same way, but this participation is less obvious because it is less noticeable.

单选题Important Note: Application for admission to the Graduate School at this university must be made on forms provided by the Director of Admission. An applicant whose undergraduate work was done at another institution should request that two copies of undergraduate transcripts and degrees be sent directly to the Dean of Graduate School. Both the application and transcripts must be on file at least one month prior to the registration date, and must be accompanied by a nonrefundable ten-dollar check or money order to cover the cost of processing the application. Students who have already been admitted to the Graduate School but were not enrolled during the previous semester should reapply for admission using a special form available in the office of the Graduate School. It is not necessary for students who have previously been denied admission to resubmit transcripts; however, new application forms must accompany all requests for reconsideration. Applications should be submitted at least eight weeks in advance of the session in which the student wishes to enroll.

单选题Dr. Hawking has made much contribution to the theories of modem physics at the ______ of his health.

单选题(While) some pirate ships deprived early American colonists of (many) needed supplies, (others) smuggled in goods, subverted(破坏) British taxes, and (help) in the Revolutionary War.A. WhileB. manyC. othersD. help

单选题______ had I reached school than the bell rang. A. No sooner B. Only C. Hardly D. Rarely

单选题That was Uan awful/U crime.

单选题Ree: I went on a date with Sammy last weekend. B: Really? ______? A: I couldn"t ask for a better night.

单选题He must have had an accident, or he ______ here then. A. should be B. would be C. could have been D. would have been

单选题Jean: Hello, Wilson, this is Jean. Listen, Wilson... Ted: ______

单选题The everyday life of a policeman or detective is ______.

单选题Engineering students are supposed to be examples of practicality and rationality, but when it comes to my college education I am an idealist and a fool. In high school I wanted to be an electrical engineer and, of course, any sensible student with my aims would have chosen a college with a large engineering department, famous reputation and lots of good labs and research equipment. But that's not what I did. I chose to study engineering at a small liberal-arts (文科) university that doesn't even offer a major in electrical engineering. Obviously, this was not a practical choice; I came here for more noble reasons. I wanted a broad education that would provide me with flexibility and a value system to guide me in my career. I wanted to'open my eyes and expand my vision by interacting with people who weren't studying science or engineering. My parents, teachers and other adults praised me for such a sensible choice. They told me I was wise and mature beyond my 18 years, and I believed them. I headed off to college sure I was going to have an advantage over those students who went to big engineering "factories" where they didn't care if you had values or were flexible. I was going to be a complete engineer: technical genius and sensitive humanist (人文学者)all in one. Now I'm not so sure. Somewhere along the way my noble ideals crashed into reality, as all noble ideals eventually do. After three years of struggling to balance math, physics and engineering courses with liberal-arts courses, I have learned there are reasons why few engineering students try to reconcile (协调) engineering with liberal-arts courses in college. The reality that has blocked my path to becoming the typical successful student is that engineering and the liberal arts simply don't mix as easily as I assumed in high school. Individually they shape a person in very different ways; together they threaten to confuse. The struggle to reconcile the two fields of study is difficult.

单选题 NASA is releasing several images taken by the Hubble Space Telescope, which is the closest yet look at the red planet. Altogether there are four images, which show the entire planet. Each view shows the planet as it completes one quarter of its daily rotation. In these views the north polar cap is turned toward the Earth and is clearly visible at the top of each picture. The images were taken in the middle of the Martian northern summer, when the polar cap was at its smallest size. During this season the sun shines continuously on the polar cap. Previous spacecraft observations have shown that this summertime polar cap is composed of water ice, just like Earth's polar caps. The Hubble Telescope pictures reveal that great changes have occurred on the surface of Mars in the past 20 years. The Martian surface is ever changing. Some regions that were dark 20 years ago are now bright red; some areas that were bright red are now dark. Winds move sand and dust from region to region, often in huge dust storms. Over long timescales many of the larger bright and dark markings remain stable, but smaller details come and go as they are covered and then uncovered by sand and dust.

单选题It ______ last night, for the ground is wet. A. must rain B. might have rained C. must have rained D. should have rained

单选题He put it this way, "Unlike others, my wife works because she likes working, not because of money."

单选题Jack: Hey, how are you, Susie? Gee, we haven't seen each other in... It must be close to three years! Susie: ______ Jack: OK. A. How do you do? B. Nice to meet you. C. Fancy meeting you here. D. Well, how have you been?