单选题The house ______ I grew up has been taken down and replaced by an office building.

单选题Throughout the past century humanity did everything in its power to control nature. We dammed earth"s rivers, chopped down the forests and exhausted the soils. Burning up fuels, we pumped a great deal of greenhouse gases into the air, altering the chemistry of the atmosphere and warming the planet in just a few decades. And as our population began in the year 2000 above the 6 billion mark, still spreading across the continents, dozens of animal and plant species were dying out every day, including the first primate (灵长类) to disappear in more than 100 years. At the start of the 21st century there were unmistakable signs that nature was beginning to take its revenge. Melting ice in both poles of the earth suggested that the climate was changing rapidly. Weather was even more changeable than usual, giving some places too little rain and others too much. Fires raced across the dried American West last summer, and recent storms spread damages from Britain to China. No specific event could be directly blamed on global warming. Floods and drought will be more frequent and severe. Other sad signs from an overburdened planet include falling grain and fish harvests and fierce competition for scarce water supplies. But there were also, in the year 2000, signs of great awareness. Connected by the Internet, hundreds of millions of people gathered for the 30th anniversary of Earth Day. Governments from Washington to Lima took steps to protect the large wild areas from development. Progress was made toward using more renewable energy from the wind and the sun, and new cars that used both gasoline and electricity spotted (显示) fuel-economy statistics. The goal for the new century is "sustainable development". Is that possible? It depends on how well we understand that humanity is part of nature, not lord and master.

单选题You can take anything from the shelf and read, but please ______ the books when you've finished with them.

单选题John succeeded ______ what he wanted.

单选题He wrote to me ______ a business arrangement. A. concerned B. conception C. concerning D. revealing

单选题The report the scientists made this year ______ the weaknesses of modern medical practice.

单选题Too often young people get themselves employed quite by accident, not knowing what lies in the way of opportunity for promotion, happiness and security. As a result, they are employed doing jobs that afford them little or no satisfaction. Our school leavers face so much competition that they seldom care what they do as long as they can earn a living. Some stay long at a job and learn to like it; others quit from one to another looking for something to suit them. The young graduates who leave the university look for jobs that offer a salary up to their expectation. Very few go out into the world knowing exactly what they want and realizing their own abilities. The reason behind all this confusion is that there never has been a proper vocational guidance in our educational institution. Nearly all grope (摸索) in the dark and their chief concern when they look for a job is to ask what salary is like. They never bother to think whether they are suited for the job or, even more important, whether the job suits them. Having a job is more than merely providing yourself and your dependants with daily bread and some money for leisure and entertainment. (12) It sets a pattern of life and, in many ways, determines social status in life, selection of friends, leisure and interest. In choosing a career you should first consider the type of work which will suit your interest. Nothing is more pathetic than taking on a job in which you have no interest, for it will not only discourage your desire from succeeding in life but also ruin your talents and ultimately make you an emotional wreck (受到严重伤害的人) and a bitter person.

单选题He finds (it) easier to do the (cooking) himself than (teaching) his wife (to cook).

单选题I couldn't understand why he pretended ______ in the bookstroe. A. to see me not B. not to see me C. not see me D. to see not me

单选题I have six color pencils. One is red, ______ is blue and ______ are green. A. another; the others B. the other; others C. one; others D. another one; the other

单选题Stewardess: Good morning. __________ This way, please. Passenger: Thank you. Stewardess, can you direct me to my seat? Stewardess: Certainly. May I see your boarding pass, please? Passenger: Sure, here it is.

单选题Tom: I went to a car exhibition. The hydrogen car impressed me most. Mud: Hydrogen car? You mean the car will burn hydrogen? Tom: ______.

单选题There is a hole at the ______ of the pot.

单选题The company official ______ I thought would be fired received a raise.

单选题"You will certainly see people of every age, size and shape." "Shape" here refers to people being ______

单选题The notice was written in several languages ______ foreign tourists should misunderstand it.

单选题I"m afraid that there isn"t ______ for you in my car.

单选题It is good manners for men to behave ______ toward women. A. considerably B. consciously C. considerately D. contentedly

单选题When she said she would be ready to help us out, she well.