原创试题专区
开通学校服务
试卷简介
试卷预览
California Gives Green Light to Space Solar Power
Energy beamed down from space is one step closer to reality,now that California has given the green light to an agreement that would see the Pacific Gas and Electric Company buy 200 megawatt（兆瓦）of power beamed down from solar-power satellites beginning in 2016. But some major challenges will have to be overcome if the technology is to be used widely.
A start-up company called Solaren is designing the satellites,which it says will use radio waves to beam energy down to a receiving station on Earth.
The attraction of collecting solar power in space is the almost uninterrupted sunshine available in geosynchronous（与地球同步的）orbit. Earth-based solar cells,by contrast,can only collect sun-light during daytime and when skies are clear.
But space-based solar power must grapple（努力克服）with the high cost per kilogram of launching things into space, says Richard Schwartz of Purdue University in West Lafayette,Indiana,"If you're talking about it being economically viable or power of the Earth,it's a tough go," he says.
Cal Boerman,Solaren's director of energy services,says the company designed its satellites with a view to keeping launch costs down. "We knew we had to come up with a different,revolutionary design,"he says. A patent the company has won describes ways to reduce the system's weight, including usring inflatable mirrors to focus sunlight on s01ar cells,so a smaller number can collect the same amount of energy.
But using mirrors introduces other cha11enges,including keeping the solar cells from overheating,says Schwartz.”you have to take care of heat dissipation（散发）because your're now concentrating a lot of energy in one place, he says.According to the company's patent,Solaren's soIar cells wi11 be connected to radiators to help keep them c001．
Though Boerman says the company believes it can make space based solar power work,it is not expecting to crowd out other forms of renewable energy.Laws in California and other states require increasing use of renewable energy in coming years,he points out.“To meet those needs,we re going to need all types of renewable energy sources，”he says．
S01ar—power satellites will use radio waves to beam energy From down space.
A. Right
B. Wrong
C. Not mentioned
This technology which collects energy from space will be used widely.
A. Right
B. Wrong
C. Not mentioned
Solaren is going to design 200 solar-power satellites.
A.Right
B.Wrong
C.Not mentioned
Space-based solar cells could collect solar power only when skies are clear.
A. Right
B. Wrong
C. Not mentioned
One advantage of space-based solar power system is that it is economical.
A. Right
B. Wrong
C. Not mentioned
There are other problems by using mirrors to cut the price.
A.Right
B.Wrong
C.Not mentioned
Inflatable mirrors are used to reduce the space-based solar power system.
A.Right
B.Wrong
C.Not mentioned
Space-based solar power will rule out other forms of renewable energy sources.
A. Right
B. Wrong
C. Not mentioned
Many countries will grant permission for the use of spaced-based solar power soon.
A. Right
B. Wrong
C. Not mentioned
There is no more need for other renewable energy sources if the company makes the space-based solar power work successfully.
A. Right
B. Wrong
C. Not mentioned
Rising College Selectivity
Rising college selectivity doesn't mean that students are smarter end more serious than in the past. It's a function of excess demand for higher education,occurring at a time of increased financial privatization of the industry.
The recession has only increased demand. The vast majority of students aren't going to college because of a thirst for knowledge.'they're there because they need a job,and they need to get the credentials and one hopes,the knowledge and skills behind the credentials that Will get them into the labor market.
As higher education ll?1S become a seller's market, the institutions in a position to do so are doing what comes naturally: raising their tuitions and their admissions requirements,but at the expense of contributing to the national goal to increase college attainment. The result is that the United States is losing ground in the international ace for educational talent.
The increasing stratification of higher education is happening on he spending side,as well. As the selective institutions have become the responsibility to enroll more students without being paid to do so. Gaps between rich and poor have grown even more dramatically than gaps in entering test scores. While spending is a poor measure of educational quality,we can't seriously expect to increase educational attainment if we're not prepared to do something to address 'these growing inequities in funding.
That said,the educational policy problem in our country is not that the elite institutions are becoming more selective. The problem is on the public policy side. The president and many governors have set a goal to return America to a position of international leadership in educational attainment.
It's the right goal,we just need a financing strategy to get there. That doesn't mean just more money,although some more money will be needed.It also means better attention to effectiveness and educational attainment. We know how to do it,if we want to.
The demand for higher education has increased because
A. the number of students keeps growing
B. there is a boost in the labor market
C. of the rising college selectivity
D. of the economic depression
According to most students,what is the most essential condition that enables them to get into the labor market?
A. Diplomas.
B. Being employed.
C. Going to college.
D. Knowledge and skills.
Since higher education has become a seller's market,the national goal to increase college attainment
A. will be fulfilled in a short time
B. will be difficult to achieve
C. will draw more public concern
D. will demand more financial input
As it is mentioned in the 4th paragraph,gaps have grown dramatically between
A. the talented students and the slow ones
B. the advanced countries and the others
C. the selective institutions and the rest
D. the rich families and the poor ones
What does the author think should be modified?
A. The selectivity of elite institutions.
B. The industrialization of education.
C. The goal of education attainment.
D. the government’s funding strategy
Boredom at Work
① You might find yourself staring at the clock,willing it to move
faster so the boring workday will finally end. If your job offers little in the way of stimulation,there are steps you can take inside and outside the workplace.
②if you’s bored with your job,it could be a sign that you’ve mastered the basic requirements and are ready for more of a challenge you might not have been in your position long enough to request a promotion still,you can talk steps to enhance your current role ,ask your boss if there are any projects you can help with ,volunteer to train less experienced colleagues ,you’ll feel more stimulated at work and also increase your chances of future advancement.
③If you feel there is nothing left to learn in your present position,take steps to increase your knowledge. Your company's website might have online courses you can take during your slow periods,with your manager's permission Enroll in training classes your company offers in areas that interest you. You also can pursue educational opportunities outside of the workplace,such as college classes,industry-specific training programs or self-improvement courses. If the knowledge you acquire doesn't,help you in your present position,it might eventually help you move into a more fulfilling position.
④ Look for ways to challenge yourself. If your job involves performing repetitive tasks,set a quota for the number of times you can accomplish a particular task during the course of a shift. This will give you something to shoot for.If you have co-workers who perform the same tasks,make a friendly wager to see who can do the most. You'll form stronger bonds with your colleagues,and your employer is likely to notice your increased productivity.
⑤According to psychotherapist and career coach Nina Ham,boredom at work might be a symptom of dissatisfaction with your person all life. Finding sources of stimulation outside of work can have a positive impact on your attitude toward your job. Seeking counseling for an emotional issue can also be of benefit. If your personal life is going well and nothing you try seems to improve your engagement level at work,it might be time to consider a job or even a career change.
Paragraph①
A.boredom at work might be a symptom of dissatisfaction with your personal life.
B.with nothing to learn in your present position,you can take steps to increase your knowledge.
C.you can take steps to enhance your current role
D.promotion is the most important factor that affects people’s attitude towards work.
E.look for ways to challenge yourself.
F.being bored at work can be a miserable experience.
Paragraph②
A.boredom at work might be a symptom of dissatisfaction with your personal life.
B.with nothing to learn in your present position,you can take steps to increase your knowledge.
C.you can take steps to enhance your current role
D.promotion is the most important factor that affects people’s attitude towards work.
E.look for ways to challenge yourself.
F.being bored at work can be a miserable experience.
Paragraph③
A.boredom at work might be a symptom of dissatisfaction with your personal life.
B.with nothing to learn in your present position,you can take steps to increase your knowledge.
C.you can take steps to enhance your current role
D.promotion is the most important factor that affects people’s attitude towards work.
E.look for ways to challenge yourself.
F.being bored at work can be a miserable experience.
Paragraph④
A.boredom at work might be a symptom of dissatisfaction with your personal life.
B.with nothing to learn in your present position,you can take steps to increase your knowledge.
C.you can take steps to enhance your current role
D.promotion is the most important factor that affects people’s attitude towards work.
E.look for ways to challenge yourself.
F.being bored at work can be a miserable experience.
Paragraph⑤
A.boredom at work might be a symptom of dissatisfaction with your personal life.
B.with nothing to learn in your present position,you can take steps to increase your knowledge.
C.you can take steps to enhance your current role
D.promotion is the most important factor that affects people’s attitude towards work.
E.look for ways to challenge yourself.
F.being bored at work can be a miserable experience.
If your job offers you little stimulation,there are steps you can take
A.strong desire for friendly relationships
B.your slow periods
C.dissatisfaction with your personal life
D.the basic requirements
E.performing repetitive tasks
F.inside and outside the workplace
If you’re bored with your job,it shows that you've mastered
A.strong desire for friendly relationships
B.your slow periods
C.dissatisfaction with your personal life
D.the basic requirements
E.performing repetitive tasks
F.inside and outside the workplace
With your manager's permission,you can take your company’s online courses during
A.strong desire for friendly relationships
B.your slow periods
C.dissatisfaction with your personal life
D.the basic requirements
E.performing repetitive tasks
F.inside and outside the workplace
if your job involves ,set a quota for the number of times you can accomplish1cular task.
A.strong desire for friendly relationships
B.your slow periods
C.dissatisfaction with your personal life
D.the basic requirements
E.performing repetitive tasks
F.inside and outside the workplace
It's said that boredom at work might indicate
A.strong desire for friendly relationships
B.your slow periods
C.dissatisfaction with your personal life
D.the basic requirements
E.performing repetitive tasks
F.inside and outside the workplace
下面的短文有5处空白，短文后有6个句子，其中5个取自短文，请根据短文内容将其分别放回原有位置，以恢复文章原貌。
The Cake
But her mother's eyes never made it all the way to the table."Just look at this mess ! "she moaned. " How many times have I talke to you about cleaning up after yourself?" .
"But Mom,I was only..."
"I should make you clean stay up right now ,but I'm too tired make sure you get it done right," ,her mothe said Honey," Cindy's father interjected gently,"take a look at the table. "
"I know-it's a mess," his wife said coldly. She storme up the stairs and into her room,slamming the door shut behind her.
For a few moments Cindy and her father stood silently,neither one knowing what to say. At last she looked up at him,her eyes moist and red. "She never saw the cake," she said.
From time to time we all allow ourselves to be blinded tissue?long-term significance by stuff that seems awfully important right now,but isn't. Muddy shoes,lost lunch money and messy kitchens are troublesome,and they deserve their place among life's frustrations. Is a lost dollar more valuable than a youngster' emerging-Z ! And while kitchen sanitation is important,is worth the sacrifice of tender feelings and relationships?
I'm not saying that our children don't need to learn responsibility,or to occasionally suffer the painful consequences of their own bad choices. But as parents,we must never forget that we're not just teaching lessons-we're teaching children. That means there are times when we really need to see the mess in the kitchen,and time when we only need to see the cake.
A. "The whole kitchen is a disaster. I can't stand to look at it. "
B. But what's a little mud-even on new carpet-compared to a child's self-esteem?
C. She gestured grandly toward the kitchen table, where a slightly off-balance two-layer chocolate cake awaited their inspection
D. Those lessons are vital,and need to be carefully taught.
E. "So you'll do it first thing in the morning. "
F. Unfortunately,Cindy's mother isn't the only parent who suffers from Situational Timbercular Glaucoma-the occasional inability to see the forest for the trees.
短文有10处空白，短文后列出12个词，其中10个取自短文请根据短文内容将其分别放回原有位置，以恢复文章原貌。
Beauty or Comfort?
People in Beijing wear a lot of clothing during winter to fend off the cold.In the United States,however,people wear ,partly because the car is the primary mode of transportation. Car take them straight their workplaces,which are heated well. The American diet is full of calories,so their can afford to burn heat more quickly.
of clothing give people the opportunity to stay.fashion Lots of Yales girls wear skirts even 'when it's 10 degree Centigrade outside. Some of them at least wear boots,tights,and leg warmers. Some,however,really just go the look at the risk health. These girls have nothing to prevent their legs against the wind,and no socks to protect their feet.mini skirt and a pair of stilettos are all that they wear.
Typically,the ones pursuing fashion are ,with little bod、fat.Just by the nature of their bodies,the are and at a compared with normal people in cold weather. I have always won dered whenever I pass these girls,how they manage to refrain from and just smile like spring had arrived.
And then there are the guys. The girls can be said to sacrifice health for beauty. But why do guys wear so little? It is not like,once they shed some layers,they suddenly become better-looking. They are not being fashionable when they only wear sporty shorts and show slippers in the midst of winter. It's not cute.
Of course, people have the freedom to look way they want. I am just surprised that,given the vast differ tween winter and summer temperatures in Connecticut,they can still look like they are 0n the beach in the middle of February.
A. However
B. Shivering
C. Less
D. Fewer
E. Skinny
F. exactly
G. Bodies
H. Whatever
I. At
J. Partying
K. Disadvantage
L. For
最新推荐
相关试卷
