题目内容
E
However wealthy we may be, we can never find enough hours in the day to do everything we want. Economics deals with this problem through the concept of opportunity cost, which simply refers to whether someone’s time or money could be better spent on something else.
Every hour of our time has a value. For every hour we work at one job we could quite easily be doing another, or be sleeping or watching a film. Each of these options has a different opportunity cost—namely, what they cost us in missed opportunities.
Say you intend to watch a football match but the tickets are expensive and it will take you a couple of hours to get to and from the stadium. Why not, you might reason, watch the game from home and use the leftover money and time to have dinner with friends? This—the alternative use of your cash and time—is the opportunity cost.
For economists, every decision is made by knowledge of what one must forgo—in terms of money and enjoyment—in order to take it up. By knowing precisely what you are receiving and what you are missing out on, you ought to be able to make better-informed, more reasonable decisions. Consider that most famous economic rule of all: there’s no such thing as a free lunch. Even if someone offers to take you out to lunch for free, the time you will spend in the restaurant still costs you something in terms of forgone opportunities.
Some people find the idea of opportunity cost extremely discouraging: imagine spending your entire life calculating whether your time would be better spent elsewhere doing something more profitable or enjoyable. Yet, in a sense it’s human nature to do precisely that we assess the advantages and disadvantages of decisions all the time.
In the business world, a popular phrase is “value for money.” People want their cash to go as far as possible. However, another is fast obtaining an advantage: “value for time.” The biggest restriction on our resources is the number of hours we can devote to something, so we look to maximize the return we get on our investment of time. By reading this passage you are giving over a bit of your time which could be spent doing other activities, such as sleeping and eating. In return, however, this passage will help you to think like an economist, closely considering the opportunity cost of each of your decisions.
1.According to the passage, the concept of “opportunity cost” is applied to ________.
A. weighing the choice of opportunities
B. reducing missed opportunities
C. making more money
D. taking more opportunities
2.The “leftover ... time” in Paragraph 3 probably refers to the time ________.
A. taken to have dinner with friends
B. spared for watching the match at home
C. saved from not going to watch the match
D. spent on the way to and from the match
3.What are forgone opportunities?
A. Opportunities you make up for.
B. Opportunities you forget in decision-making.
C. Opportunities you give up for better ones.
D. Opportunities you miss accidentally.
4.What is the author’s attitude towards the concept of “opportunity cost”?
A. Indifferent B. Negative
C. Subjective D. Objective
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Metropolitan North Georgia Water Planning District
2015 High School Video Contest
Here’s the Scoop on Pet Waste!
Submission Deadline March 27, 2015.
Eligibility Ninth, tenth, eleventh and twelfth grade students that attend schools located in Bartow, Cherokee, Clayton, Cobb, Coweta, DeKalb, Douglas, Fayette, Fulton, Forsyth, Gwinnett, Hall, Henry, Paulding and Rockdale counties are invited to participate in the video contest. Entries can be a team or individual effort. Guidelines ? Each video must be uploaded to YouTube. The video’s YouTube link must be included in the entry/release form. ? Team members must be from the same school. ? The video must be between 30-60 seconds in length. ? No professional assistance or use of copyright material is allowed, including background music. ? Each student participating in the contest or appearing in the video must fill out a form. For teams, submit an entry/release form for each team member. ? One video per team or individual. ? All entry/release forms must be postmarked or received by Friday, March 27, 2015. Email: kvaIlianos@atlantaregional.com OR Mail: 2015 Water Video Contest Metro Water District 40 Courtland Street, NE Atlanta, GA 30303 | Judging Submissions will be judged based on the following criteria: ? incorporation of the “Here’s the Scoop on Pet Waste’’ message. Use the "Here's the Scoop on Pet Waste’’ messaging fact sheet for background information on the issue. ? Composition (length, technical construction, audio quality). ? Entertainment value. ? Accuracy of information. ? Creativity. Prizes ? 1st Place $1500 ? 2nd Place $1000 ?3rd Place $500 50% of the prize money will go to the individual or team who submits the video and 50% to the high school they attend. Winners will be notified directly. |
Page 1 of 3 www.northgeorgiawater.org | |
1.What does the underlined word “Eligibility” probably mean?
A. Age. B. Qualification.
C. Location. D. Grade.
2.When entering the contest, ________.
A. one must ask his or her teacher to sign the entry form
B. winners can earn at least $750 as a prize
C. one can invite friends from other schools to act in the video
D. participants had better add some humor and fun to the video
Teen obesity means the problem of very overweight teenagers. Obesiry for a teenager happens when his or her BMI(身体质量指数)is more than 95 percent greater as compared to other teenagers of the same gender(性别)and age.
The term "obese" is commonly used by doctors wh. en a person's weight can badly affect their health. Obesity can be caused by genetics and habits such as eating unhealthy food and not getting enough exercise.
Teen obesity can lead to several health problems. Obese teens are at greater risk of deve-loping health complication(并发症)，such as type-2 diabetes（糖尿病），high blood pressure and high cholesterol(胆固醇). If they remain obese into adulthood, these teens can also raise their chances of developing heart disease.
In addition, there can be many psychological effects of teen obesity. Some experts believe there is a strong link between obesity and self-identity(自我认向)．If teens are treated poorly by other teens, they may have the feeling of low self-esteem(自尊), loneliness and depression Health experts recommend several ways to control teen obesity. The most common sugges-tions are eating balanced meals with enough fruit and vegetables in addition to getting 60 minutes of exercise daily. Eating a good breakfast can also help according to some doctors.
Doctors suggest that teens avoid trying to go on a diet and instead learn to how to make lifestyle changes.Some experts also recommend making the entire family take part in healthier habits to make the obese teen feel less alone. Parents can also avoid talking about health weight in terms of "fat' and "thin" and instead say that each person's ideal size is different
Title | Teen obesity |
Introduction | Teen obesity happens when he or she BMI is over 95 percent greater than teenagers of the same gender and age |
1.. | ★Genetics ★2. _ - eating habits ★3. to get enough exercise |
4.. effects | ★It 5. ____ the risk of development health complication. ★Obese teens are likely to develop heart disease when they become 6.. . ★Obese teens may have low self-esteem and feel 7.or depressed. |
8. | ★Eat balanced meals and take exercise every day . ★Eat a good breakfast ★Change 9. . ★Make the whole family 10. in healthy habits. |
Art is an important part of education, not only on its own but in the rest of education as well. However, in this information age, advanced technology in school has gained more attention than art. Sometimes when the school has a tight budget, it is usually art rather than technology that becomes the first thing to be cut.
Anyway, the significance of art can’t be ignored. First of all, in school it can help students develop a variety of life skills such as communication skills, problem-solving skills and self-expression skills. Secondly, for high school students, those who are involved in arts classes can have higher test scores. Besides, for some students, art seems to be motivation for coming to school because it’s a subject that they can outshine, which eventually balances their educational experience.
New technology surely offers many benefits to some aspects of education, making teaching and learning easier and more effective. For example, technology simplifies tasks that take much longer to do, like conducting research or finding information. But advanced technology has bad effects such as the risk of being overweight, tiredness and even potential mental health problems, while art doesn’t. On the other hand, unlike art, no technology can develop students’ critical (批判的) thinking skills and a creative mind, both of which can help them to find successful careers after they graduate. Furthermore, no technology can help students to learn to bear responsibility, develop their imagination and increase their confidence.
Generally, art should not be replaced with advanced technology in schools and the last thing to be cut out of school curriculum.
Title | Should Technology 1. Art? |
Situation | Technology has attracted more2. than art In schools, which is in danger of being cut. |
The3. roles that art plays in school | ● Developing 4. life skills ● Improving academic performance ● Serving as 5. for attending school |
Advantages of art over technology | ● Causing less health problems ● Developing critical thinking and 6. ● Helping students take on 7. ● Developing imagination ● Making students feel more 8. |
9. | Art should be no doubt 10.on the school curriculum. |