单选题Does the way you thought of ______ the water clean make any sense?

单选题Sorry I never drink milk; it doesn’t _____ me.

单选题Her hair was golden when she was a child, but it went darker ______ she grew up.

单选题Footracing is a popular activity in the United States. It's not only seen as a competitive sport, but also as a way to exercise, to enioy the comraderies (同专情谊) of like - minded people, and to donate money to a good cause. Though serious runners may spend months training to compete, other runners and walkers might not train at all. Those not competing to win might run in an effort to beat their own time, or simply to enjoy the fun and exercise. People of all ages, from those less than one - year old (who may be pushed in strollers) to those in their 80s, enter into this sport. The races are held on city streets, on college campuses, through parks, and in suburban areas, and are commonly 5 to 10 kilometers in length. The largest footrace in the world is the 1 2- kilometer Bay to Breakers race that is held in San Francisco every spring. This race begins on the east side of the city near San Francisco Bay and ends on the west side at the Pacific ocean. In 1993 there were 80,000 people running in this race through the streets and hills of San Francisco. In the front are the serious runners who compete to win, and who might finish in as little as 34 minutes. Behind them are the thousands who take several hours to finish. In the back of the race are those who wear costumes just for fun. In 1993 there was a group of men all of whom dressed up like Elvis Presley. There was a group of firefighters who were au tied in a long line and were carrying a firehouse. One year there was a bridal(新婚的)party in which the bride dressed in a long white gown and the groom wore a tuxedo(晚礼服). They threw flowers to bystanders, and were actually married at some point along the route.

单选题Doctor: ______ Patient: I"ve got a bad cold and got a sore throat.

单选题She could have done just as well as you, ______ the chance. A. given B. to give C. giving D. give

单选题He as well as I __________ you.

单选题At the beginning of this term, our history professor ______ a list of books for us to read.

单选题It is the Party ______ has been leading us from victory to victory.A. sinceB. whichC. whoD. that

单选题It seldom rains heavily in our region nowadays, ______?

单选题The two parties haven"t reached any agreement, but decided to set another date for ______ talks.

单选题I would have written before, but I ______ ill. A. were B. had been C. would be D. was

单选题Speaker A: Do you mind if I keep pets in this building? Speaker B: ______

单选题Who __________ on Saturday?

单选题He looked through the pages of advertisements to find jobs ______ to college students during the summer holidays.

单选题Problems will ______ if you do it this way.

单选题The hopes, goals, fears and desires ________ widely between men and women, between the rich and the poor.

单选题Your sister doesn"t study as ______ as you do.

单选题It is reported that the police will soon look ______ the case of the two missing children. A．upon B．after C．into D．out

单选题Many of the most damaging and life threatening types of weather, such as torrential rains and severe thunderstorms, begin quickly, strike suddenly, and disappear rapidly, destroying small regions while leaving neighboring areas untouched. (79) Conventional (普通) computer models of the atmosphere have limited value in predicting short-lived local storms because the available weather data are generally not detailed enough to allow computers to see clearly the small atmospheric changes that come before these storms. In most nations, for example, weather-balloon observations are taken just once every twelve hours at location typically separated by hundreds of miles. With such limited data, conventional forecasting models do a much better job predicting general weather conditions over large regions than they do forecasting specific local events. Until recently, the observation-intensive approach needed for accurate, very short range forecasts, or "nowcasts", was impracticable. The cost of equipping and operating many thousands of conventional weather stations was extremely high, and the difficulties involved in rapidly collecting and processing the raw weather data from such a network were beyond overcoming. Fortunately, scientific and technological advance have overcome most of these problems. Radar systems, automated weather instruments, and satellites are all capable of making detailed, nearly continuous observations over large regions at a relatively low cost. Communication satellites can transmit data around the world cheaply and immediately, and modem computers can quickly compile and analyze this large volume of weather information. (80) Meteorologists (气象学家) and computer scientists now work together to design computer programs and video equipment capable of transforming raw weather data into words, symbols, and vivid graphic displays that forecasters can interpret easily and quickly. As meteorologists have begun using these new technologies in weather forecasting offices, nowcasting is becoming a reality.