题目内容
Perhaps everyone has heard warnings about the “freshman 15”, but is it true that many college students weigh 15 pounds more during their first year at school?
Recent studies find that some first-year students are indeed likely to gain weight, but it might not be the full freshman 15, and it may not all happen during the freshman year. That might sound like good news, but it’s not. Doctors are concerned that students who gradually put on pounds could have healthy problems.
Studies show that students on average gain 3-10 pounds during their first 2 years of college. Most of this weight gain occurs during the first year. A college offers many temptations (诱惑). You’re on your own and free to eat what you want. In addition, you may not get as much exercise as you did in high school. A college is also a time of change, and people sometimes eat in response to (对……做出反应) homesickness, sadness, or stress, and all of these can be part of starting a new life in college.
Some weight gain is normal as a young body grows, but rapid weight gain may become a problem. Weight gain that pushes you above the body’s normal range carries health risks. People who are overweight are more likely to have high blood pressure, heart disease and develop certain cancers.
The best way to beat “freshman 15” is to prevent it altogether. Good habits like a balanced diet, regular exercise, and getting enough sleep can do more than keeping the pounds off. They can also help you stay healthy.
1. The “freshman 15” refers to the fact that the first-year college students ________.
A. are likely to gain much weight B. can’t get used to living in college
C. may have 15 health problems D. gradually put on weight in 15 weeks
2. According to the writer, the causes of “freshman 15” don’t include ________.
A. getting less exercise B. being free to eat food
C. feeling homesick D. having more subjects.
3. What is the best way to beat “freshman 15”?
A. To ask doctors for advice. B. To pay attention to your lessons.
C. To stop it from happening. D. To do a lot exercise every day.
4. What can we learn from the text?
A. Getting less sleep can help people lose weight gradually.
B. Overweight people usually have more health risks.
C. Weight gain is becoming serious among college students.
D. Students gain more weight in the second year than in the first.
【小题1】A
【小题2】D
【小题3】C
【小题4】B
名校课堂系列答案These days no car show is complete without an electric car, and the 2011 North American International Auto Show in Detroit, US, which ran from January 10 to 23, was no exception.
Among the fully electric vehicles on display were the Ford Focus Electric and the Honda Fit EV. BMW and Volvo also had prominent displays at the show, proving that they can produce practical, yet spacious family-oriented electric cars.
Industry insiders at the show claimed that more efficient batteries, improved performance and greater consumer acceptance could make 2011 the “year of el
ectric car”.
It’s long been clear that electric cars score heavily for convenience. They are, for instance, much easier to maintain than gasoline-powered cars. When the battery runs out, you simply replace it or recharge it, just like you would for a cell phone or a laptop.
This is also a much cheaper method than filling your tank with gasoline. Better yet, electric cars don’t emit exhaust fumes. As a result, they don’t produce environmentally damaging greenhouse gases.
It appears that improved technology is making electric cars and their maintenance much more user-friendly. So, what are the obstacles which are preventing electric cars from becoming popular and fashionable?
Home charging for electric cars could be extremely convenient for users. However, it is also a potential obstacle. For a start, installing charging stations in owners’ homes will be a challenge, particularly for those who have to park several blocks away from their homes.
Also, charging the car’s battery still takes quite a long time. It may be some time yet before you can recharge an electric car in the same time as you can refill your gas tank.
Another problem is that many electric vehicles have limited ranges that may only allow for journeys of 50 miles (80 km) or less between charges. In cases where a driver wishes to charge the car primarily at home (perhaps overnight), this limits their daily driving to the range of their vehicle.
This may be one reason why hybrid cars are now becoming more popular. A hybrid car has more than one energy source, usually a traditional gasoline fuel tank and an electric battery. It’s like a more practical version of an electric car: It’s greener than a conventional vehicle, with fewer CO2 emissions, yet it also doubles as a conventional vehicle.
“I would say that hybrid is a transition to fully electronic,” Road and Track magazine editor Richard Horman told Detroit News during the show. “The trend is for lighter, smarter, more economical cars. Of course
, electronic vehicles are meant to be that way.”
This sounds promising, particularly in light of the fact that the show featured more electric cars from big manufacturers than ever before.
However, it seems that the technology associated with electric cars is not yet able to fully meet people’s expectations. Don’t expect gasoline-powered cars to disappear from roads just yet.
【小题1】 What made electric cars more convenient?
| A．Easier maintenance. | B．High scores on the show. |
| C．Practicality and large space. | D．Much lower prices. |
| A．It is rough work to install charging stations at home. |
| B．It is time-consuming to charge the batteries. |
| C．The ranges between charges are limited. |
| D．There’s no need to fill the tank with petrol. |
| A．gasoline | B．electric | C．combined | D．separated |
| A．introduce the 2011 Auto Show in US | B．get readers informed of electric cars |
| C．comment on different types of cars | D．advertise for electric cars |