题目

若圆x2+y2-2kx+2y+2=0(k＞0)与两坐标轴无公共点，那么实数k的取值范围是_________. 答案：答案：1＜k＜2解析：原方程可化为(x-k)2+(y+1)2=k2-1.依题意有即解得1＜k＜.Women who want to succeed at work should resist the temptation to act like men, scientists have said. Studies show that ambitious women are often less likely to get ahead than those who show more female characteristics. However, if they try to adapt, promotion comes their way. The findings, which will let assertive (过分自信的) women down, suggest that the best way for a woman to succeed in a man’s world is to act like a lady. Past research has shown that women with self-confidence and other characteristics linked with successful management can be put aside at work in favor of gentle types. It is thought that while such characteristics are highly praised in men, ambitious women are penalized for not being feminine enough. Instead of being seen as strong managers, ambitious women are in an unfavorable situation. In one US study, researchers explored personal details from university students applying for a summer job at a bank. A women applicant who attempted to apply for special wages to pay her transport or living costs was three and a half times less likely to get a job offer than a similar male. In fact, this kind of woman was the least likely to get taken on. The latest study set out to explore what women who are naturally assertive could do to get ahead in the workplace. Eighty young men and women completed surveys about their personality while studying in college. Around eight years later, the researchers got back in touch with them to find out how their careers were going. Some had been promoted five times, others just once or twice. The results showed that ambitious women who stick to their decisions had been promoted less than more feminine groups. But the ambitious women who made a conscious effort to not appear to be threatening by “self-controlling” their behavior had done better than those who had carried on ignoring others’ views. 【小题1】 What does the underlined word “penalized” mean in the second paragraph?A．Treated badlyB．Asked to leaveC．Looked down uponD．Made sb. have a disadvantage【小题2】According to the passage, if an ambitious woman and a similar man both ask the company for an extra payment, ______. A．the woman is less likely to be acceptedB．the woman will work harder if she gets the paymentC．the man can make a good impression on the bossD．they can be both accepted if they use proper words【小题3】The ambitious women in the latest study ______.A．had been promoted only once or twiceB．tried hard to be as successful as gentle typesC．were more accepted at work after they controlled their behaviorD．filled in the surveys after they graduated from college【小题4】What can we learn from the passage?A．Successful management is highly praised in women.B．Some women will be disappointed by the massage.C．Men acting like a lady are likely to be promoted at work.D．The latest study was aimed at how to become a successful boss.【小题5】What’s the main idea of the passage?A．How assertive women can control their behavior.B．Feminists can do better by controlling their behavior.C．Acting like a man won’t get women promoted at work.D．How the ambitious women can avoid acting like men.