单选题______ she joined the company only a year ago, she's already been promoted twice.
单选题It is said that science has become too complex to acknowledge the existence of uni versal truths.
单选题The tone of this passage can be described as______.
单选题The most interesting new cars may owe __________ the simple wisdom of hiring a few talented people and allowing them to work.
单选题What is the writer's view in the reading passage?
单选题The survey showed that ______ numbers of 15-year-olds were already smoking twenty cigarettes a week. A. essential B. steady C. primary D. substantial
单选题I didnt manage to work out the plan ______ the teacher had explained how. A．until B．unless C．when D．before
单选题The discussion was so prolonged and exhausting that ______ the speakers stopped for refreshments.
单选题The old couple would ______ love to know how things are going on with their grandbaby.
单选题When they met, they stopped and said hello to______. A．each other B．each another C．the other each D．each one
单选题This dictionary is ______ intended for American learners of Chinese.
单选题Did he tell you what ______ if he had a chance?
单选题______ seems easy in theory seems difficult in practice.
单选题The boy is learning ______ at Cambridge University.
单选题Jane was quite annoyed(下划线) with Jerry for arriving so late.
单选题Directions:Forthispart,youareallowed30minutestowriteashortessay.Youshouldstartyouressaywithabriefdescriptionofthepictureandthenexpressyourviewsonmoney.Youshouldwriteatleast120wordsbutnomorethan180words.
单选题In a way, all of us are on a spaceship, the planet Earth. We move around the sun (36) 18 miles per second and never stop. On our spaceship we have five billion people and a limited supply of air, water, and land. The (37) have to be used carefully because we can't buy new air, water, or land from (38) else. The environment on our planet is a closed system: nothing new is ever added. Nature (39) its resources. Water, for example, evaporates and (40) as visible drops to form clouds. This same water returns to the Earth as rain or snow. The rain that falls today is actually the same water fell on the (41) 70 million years ago. Today, the Earth is in trouble. Factories (42) dirty water into our rivers. Many fish die and the water becomes unhealthy for people to drink. Cars and factories put poisons (43) the air and cause plants, animals and people to get sick. People throw bottles and paper out of their car windows, and the roadside becomes covered with all sorts of wastes. Over the years, people have changed the environment, and we have pollution. To continue to (44) we must learn how to use the Earth' s resources wisely. We have to change our (45) and stop dumping such enormous amounts of industrial waste into the water and air. We must cooperate with nature and learn better ways to use, not abuse, our environment.
单选题W:______M: I' d like to see a pair of brown shoes.
单选题It must guarantee freedom of expression, to the end that all ______ to the flow of ideas shall be removed.
单选题I have so much work to do that a holiday for me this year is ______.