单选题The bank manager asked his assistant if it was possible for him to ______ the investment plan within a week.

单选题--Sorry to trouble you.--______.

单选题If only ______ the violin in the middle of the night, she'd be an ideal guest. A. played B. would play C. didn't play D. wouldn't play

单选题I was almost asleep last night when I suddenly heard someone ______ at the door. A) be knocking B) knocking C) to knock D) having knocked

单选题(Be sure) to rut out the light (before) you (leave). Yes. I'll (put out it).A. Be sureB. beforeC. leaveD. put out it

单选题The rest of the day was entirely at his ______ for reading or recreation.

单选题Instead of being situated at a fixed campus, the City University conducts classes at various sites deemed convenient to students.

单选题In the eyes of the author, conventional opinion on the strategic importance of the Gulf oil is ______.

单选题A ______ is a group of trees that are close together, often because they have been planted in this way. A. gruff B. grudge C. grovel D. grove

单选题 The U.S. isn't the only country with an expanding waistline (腰围). A new study from the European Society of Cardiology predicts that rates of obesity will increase in almost all European countries by 2030. And Ireland comes in as the fattest country, with a 47% projected obesity rate for both men and women. To be fair, everywhere people are expanding. The prevalence of obesity worldwide nearly doubled between 1980 and 2008, according to the World Health Organization (WHO. , and although the U.S. is still leading the pack with obesity at 34.9%, European countries aren't lagging far behind with rates at roughly 23% for women and 20% for men. Presented by Dr. Laura Webber at the EuroPRevent congress in Amsterdam, the study takes into account all available data on body mass index and obesity/overweight trends in the WHO's 53 Euro-region countries. In those countries the study revealed little evidence of any plateau (稳定期). Even as England's rate of increase today is less steep than it has been historically, levels continue to rise and will be much higher in 2030 than they were in 1993. Examining both overweight and obese rates combined, the numbers become even more shocking. The prevalence of overweight and obesity in males is set to reach 75% in the U.K. and 80% in the Czech Republic, Spain, and Poland. In Ireland, the projected rate is an enormous 90% for men and 84% for women. Considering that's almost everybody, Dr. Webber's comment that these results may be underestimates is all the more concerning. She points to the poor data available from many countries contributing to less certain predictions. The study also does not take into account the significant increase in childhood weight and obesity issues across Europe, with one in three 11-year-olds overweight or obese, according to the WHO. In accounting for differences in projected levels (the lowest found in Belgium at 44% and the Netherlands at 47%) the authors mention the potential effects of 'economic positioning' and 'type of market.' Ireland and the U.K., where obesity rates are highest, have unregulated markets similar to the U.S. Giant food companies work collectively to maximize profit-encouraging over-consumption. In areas with more controlled market economies, like the Netherlands, Germany, Belgium, Sweden, and Finland, obesity levels are lower. However, obesity is a complex disease. 'The United Nations has called for a whole-of-society approach to preventing obesity and related diseases,' Dr. Webber said. 'Policies that reduce obesity are necessary to avoid premature mortality and prevent economic strain on already overburdened health systems. The WHO has put in place strategies that aim to guide countries towards reducing obesity through the promotion of physical activity and healthy diets.'

单选题The leaders of the two countries are planning their summit meeting with a ______to maintain and develop good ties. A. score B. priority C. pledge D. reward

单选题It was sunrise on an August morning when the captain and his crew cast their nets some 50 miles south of Louisiana in the Gulf of Mexico. As the net was pulled over, the contents were poured out follo

单选题请阅读Passage 1，完成小题。Passage 1Of all the changes that have taken place in English-language newspapers during the past quarter-century,perhaps the most far-reaching has been the inexorable decline in the

单选题Mr. And Mrs. Smith had always spent their summer holidays in New Jersey in the past, staying in a small inn at the foot of a hill. One year, however, Mr. Smith made a lot of money in his business, so they decided to go to London and stay at a really good hotel while they went touring around that famous city. They flew to London and arrived at their hotel late one evening. They expected that they would have to go to bed hungry, because in that small inn in New Jersey no meals were served after seven. They were therefore surprised when the man who received them in the hall asked whether they would ask dinner there that night. "Are you still serving dinner?" asked Mr. Smith. "Yes, certainly, sir," answered the man. "We serve it until half past nine." "What are the times of meals then?" asked Mr. Smith. "Well, Sir," answered the man, "We serve breakfast from seven to half past eleven in the morning, lunch from twelve to three in the afternoon, tea from four to five and dinner, from six to half past nine." "But that hardly leaves any time for us to see the sights of London." Said Mrs. Smith.

单选题 The planet is getting lusher, and we are responsible. Carbon dioxide generated by human activity is stimulating photosynthesis (光合作用) and causing a beneficial greening of the Earth's surface. For the first time, researchers claim to have shown that the increase in plant cover is due to this 'CO2 fertilization effect' rather than other causes. However, it remains unclear whether the effect can counter any negative consequences of global warming, such as the spread of deserts. Recent satellite studies have shown that the planet is harboring more vegetation overall, but pinning down the cause has been difficult. Factors such as higher temperatures, extra rainfall, and an increase in atmospheric CO2—which helps plants use water more efficiently—could all be boosting vegetation. To home in on the effect of CO2, Randall Donohue of Australia's national research institute, the CSIRO in Canberra, monitored vegetation at the edges of deserts in Australia, southern Africa, the US Southwest, North Africa, the Middle East and central Asia. These are regions where there is ample warmth and sunlight, but only just enough rainfall for vegetation to grow, so any change in plant cover must be the result of a change in rainfall patterns or CO2 levels, or both. If CO2 levels were constant, then the amount of vegetation per unit of rainfall ought to be constant, too. However, the team found that this figure rose by 11 per cent in these areas between 1982 and 2010, mirroring the rise in CO2 (Geophysical Research Letters, doi. org/mqx). Donohue says this lends 'strong support' to the idea that CO2 fertilization drove the greening. Climate change studies have predicted that many dry areas will get drier and that some deserts will expand. Donohue's findings make this less certain. However, the greening effect may not apply to the world's driest regions. Beth Newingham of the University of Idaho, Moscow, recently published the result of a 10-year experiment involving a greenhouse set up in the Mojave Desert of Nevada. She found 'no sustained increase in biomass' when extra CO2 was pumped into the greenhouse. 'You cannot assume that all these deserts respond the same,' she says. 'Enough water needs to be present for the plants to respond at all.'

单选题The simplest animals are those whose bodies are simplest in structure and which do the things done by all living animals, such as eating, breathing, moving and feeling, in the most ______ way.

单选题Wendy: Do you know what Daisy's boyfriend does? Bill: ______ A. He's not a professional writer. B. He travels a lot on business. C. Isn't he a salesperson? D. He meets with Daisy twice a week.