When you turn on the lights in your house, plug in your smartphone charger,or even charge your electric car, do you know where your power is coming from?
In the United States.there are a number of different sources of energy.The biggest sources of energy are fossil fuels like coal and natural gas.
And at the smaller end of the scale, hydropower(水力发电), which comes.from things like the Hoover Dam, is responsible for 7% of power generation.
We don’t just use electricity at home.
So when you hear that people want to raise the cost of using fossils fuels to make electricity and force people to switch to even more expensive options like renewable sources wind and solar, realize that it will have a very real effect on your pocketbook and the economy
| A．There are also many other sources of energy. |
| B．They account for two-thirds of the electricity we use. |
| C．Wind power accounts for 4% and solar, for less than 1%. |
| D．We need to switch to renewable sources as soon as possible. |
| E．Businesses and factories all use electricity to make goods and provide services. |
| F．Depending on what part of the country you live in, the mix of energy sources can look very different. |
| G．And if the switch to renewable sources is too fast, we could even get to the point where the costs could soar. |
相似题推荐
【推荐1】A role model is a person who others look up to admire. A role model provides inspiration and motivation for others. Role models send messages about their beliefs by what they do and say.
Role models are self-confident and happy with who they are. If role models show that they have great confidence, those who look up to them will, too.
Role models handle stress positively. Being humans means having to constantly deal with stress and overcome difficulties.
Role models show respect for others. How you treat others speakers volumes（充分说明）about who you are.
| A．Role models are always trustworthy |
| B．A good role model also does what he says |
| C．Role models have trust in being themselves |
| D．Here are some qualities of positive role models |
| E．A role model sets a good example of how to deal with pressure |
| F．If you want to become a good role model, follow the tips below |
| G．A good role model listens to others and also considers opposing points of view |
【推荐2】My six-year-old granddaughter, Caitlynd and I stopped at Tim Horton’s shop for a blueberry cake. As we were going out of the door，a young teenage boy was coming in.
This young man had no hair on the sides of his head and a set of blue spiked (竖起的) hair on top of it. One of his nostrils (鼻孔) was pierced, and a ring ran through the hole and a chain went across his face and was attached to a ring he was wearing in his ear. He held a skateboard under one arm and a basketball under the other.
Caitlynd, who was walking ahead of me, stopped at once when she saw the teenager. I thought he’d scared her and she'd frozen on the spot.
I was wrong.
My granddaughter backed up against the door and opened it as wide as it would go. Now I was face to face with the young man. I stepped aside and let him pass. His gracious response was a polite “Thank you very much.”.
On our way to the car, I praised Caitlynd for her manners in holding open the door for the young man. She didn’t seem to be troubled by his appearance but I wanted to make sure. If a grandmother s talk about freedom of self-expression and allowing people their differences was suitable. I wanted to be ready.
As it turned out, the person who needed the talk was me.
The only thing Caitlynd noticed about the teenager, was the fact that his arms were full. “He would have a hard time in opening the door.”
I saw the partially shaved head, the set of spiked hair, the piercings and the chain. She saw a person carrying something under each arm and heading toward a door.
In the future, I hope to get down on her level and raise my sights.
1. What did the author think of the young man at first sight?| A．Polite. | B．Common. | C．Frightening. | D．Fashionable. |
| A．she was not scared at all |
| B．she was in favor of his dressing code |
| C．she wanted to avoid him |
| D．it would be difficult for him to open the door |
| A．people should have more freedom to express themselves |
| B．the author didn’t know how to give a talk on freedom |
| C．a talk on freedom was useless for the granddaughter |
| D．the author was ashamed of herself |
| A．we shouldn’t judge a person by his look |
| B．we should allow people more freedom to dress differently |
| C．we should be more helpful and tolerant to strange dressing of the young |
| D．we shouldn’t be too particular about people in life |
【推荐3】Even if you’re not a serial procrastinator(拖延者), chances are there are many times you’ve put off a must-do task in favour of doing another more fun one.
Recognize procrastination
The biggest misconception we have about procrastination is that it’s a time management problem.
Tim Pychyl, head of the Procrastination Research Group, suggests taking three steps to get your procrastination habits under control. First, learn how to tell the difference between procrastination and purposeful delay. Whereas procrastination is often irrational, purposeful delay tends to be rational.
Use your power hours
Give yourself an even better chance of succeeding by setting cues and intentions for yourself, and learning how to maximize your power hours.
| A．Make a list of the tools and materials you’ll need to do the job. |
| B．Setting cues and intentions is all about making it as easy as possible to follow through on a task or goal. |
| C．Second, realize that when you’re procrastinating, you’re acting against your own self-interest. |
| D．In its more harmless forms, procrastinating can lead us to let our homes get messier than we’d like. |
| E．Set an intention to do one every time you’re in the shower. |
| F．If we make more lists or get a time management app, we’ll solve all our problems. |
| G．Pychyl stresses that conquering your procrastination isn’t just about feeling better in the moment—it’s about having more agency over your life. |
【推荐1】Government agencies in many places are using sea creatures to protect coastal areas from storms and rising sea levels. The idea is that large groups of oysters(牡蛎), known as colonies, can help reduce the power of waves. Powerful waves can damage lands along the edge of ocean waters.
Dense Vaccaro’s home was destroyed 10 years ago in super storm Sandy, a big storm that affected the northeast coast of America. The beach she loved is also gone, claimed by rising seas that are damaging the shoreline. “People are losing their property. My home was totally destroyed.” Vaccaro said. Many people around the world have had similar experiences. Once beautiful beach communities are washed away, people living there are having problems dealing with the changes.
Oysters are central to a project that is taking place near Vaccaro’s rebuilt house. The project is being carried out by the American Littoral Society. It received $1 million from the New Jersey Department of Environmental Protection. The group has been building steel wire containers, filling them with rocks and oyster shells and positioning them along the shoreline of Barnegat Bay. The oysters appear to be doing their job. One recent day, a strong east wind blew across the bay. But between the oysters and the shoreline, the water was much calmer, and waves went gently onto the shoreline instead of hitting it with force.
A few kilometers south, a group called ReClam the Bay is building an oyster reef to protect the shoreline of Mordecai Island. In New York, city government and federal agencies are building “living shorelines” along the south western end of Long Island. They use oysters, shells and native plants. A similar project in Delaware used 1,300 bags of oyster shells to extend shoreline protection near Lewes Canal Front Park. In Florida, volunteers and researchers established oyster colonies along parts of the Peace River in Punta Gorda.
Vaccaro said her New Jersey home may well depend on the success of many small oysters. “If we don’t do anything, we're not going to have any of these houses,” Vaccaro said.
1. What do we know about Dense Vaccaro?| A．She lost her home in a powerful storm. | B．She called for people to clean up the beach. |
| C．She has a deep love for various sea creatures. | D．She volunteered to conduct a study on oysters. |
| A．Costly. | B．Controversial. | C．Impractical. | D．Successful. |
| A．It is expensive to build oyster reefs. |
| B．It is difficult to protect the shorelines of America. |
| C．Oysters are widely used to protect the coastal areas. |
| D．ReClam the Bay is protecting the shoreline of Mordecai Island. |
| A．A big storm affected the northeast coast of America. | B．Restoring the ocean environment is very important, |
| C．America is taking measures to preserve oyster reefs. | D．Oysters play an important role in saving coastal land. |
【推荐2】The 90-minute documentary,Amazing China,is coproduced by China Central Television and China Film Corp.The film focuses on the major achievements the country has made since the 18th National Congress of the Communist Party of China in 2012.
Wei Tie,the director,says,"The film arouses Chinese pride from deep inside."
The documentary focuses on key Chinese projects in aerospace,high-speed rail,the Hong Kong-zhuhai-macao Bridge and the world's largest single-dish telescope FAST.
The documentary also tells viewers that seven of the world's 10 biggest sea ports are now in China.And the country now has the longest high-speed rail network in the world.
The film helps people to know our country better.The moving stories behind the Chinese wonders reflect the people's spirit of struggle.
A good documentary is usually a vivid impression of a single person's stories rather than slogans,and Amazing China is no exception.
One of the most touching moments in the film is from an interview of Nan Rendong,often called the"father of FAST".Sadly,after more than 20 years of working at the site,the chief scientist and engineer of the project passed away last year due to lung cancer.
The film is a salute to many other heroes like Nan Rendong,supporting the country's progress in science.Amazing China also focuses on common people.It shows that their work is not easy,but their spirit makes it possible to achieve their targets.And they are just representatives of the many Chinese who work hard.
China is the world's second-largest economy.The documentary is a good way for the country to build up self-confidence and to look to a brighter future.
1. According to Wei Tie,what does Amazing China do to Chinese?| A．It makes the people know more about the world's aerospace. |
| B．It stresses the major transportations of China in recent years. |
| C．It makes the people feel proud of the major achievements of China. |
| D．It shows to the people the production of Chinese scientists. |
| A．To introduce who Nan Rendong is. |
| B．To tell readers about the slogan of the film. |
| C．To make the sad news known to readers. |
| D．To give an example of a vivid image. |
| A．They take easy work. |
| B．They work in high spirits. |
| C．They can tell moving stories. |
| D．They represent self-confident people. |
| A．An amazing documentary. |
| B．Progress in science. |
| C．The bright future of high-speed rail. |
| D．The success of some engineers. |
【推荐3】Thanks to the vast territory and huge population of China, different living habits with geographical features have been an ever-lasting topic among Chinese. Netizens (网民) went wild again as they recently discovered another striking difference in the ways the country’s northerners and southerners shop for food.
According to netizens from southern China, they usually buy what they need for just one or two meals. “It is quite normal for us to buy one or half of a Chinese cabbage (大白菜) at a time,” said a netizen. However, one may be looked down upon if he does this in the north. “We love to store up on food. Buying 25 kilograms of Chinese cabbage is normal,” said a netizen from the north.
Besides, in the south, it is said that winter melon (冬瓜) is always sold in slices, “One slice is enough for two meals!” one said. While in the north, it is simply not possible. “Of course we buy a whole one, otherwise nobody is willing to buy the other half,” said a northern Chinese.
Experts say that the difference is due to the varied climate. Food can be stored for a relatively long time in the north as it is usually cold and dry there. However, the comparatively hot and humid weather in the south forces southern Chinese to buy just enough for one meal or one day, otherwise it might go bad.
Besides obvious ways of food shopping, other north-south differences in China include the flavor of tofu (豆腐) (northerners prefer a salty taste while southerners like it sweet), and the way to give directions (northerners prefer say “go east/west,” but southerners usually say “go left/right”).
1. In what case is a buyer looked down upon by a northerner?| A．When he buys a whole winter melon. |
| B．When he buys too small an amount of food. |
| C．When he buys a bag of a Chinese cabbage at a time. |
| D．When he buys food just enough for one or two persons. |
| A．Due to different habits. | B．Due to different customs. |
| C．Due to different climates. | D．Due to different characters. |
| A．They prefer it to taste sweet. |
| B．They prefer to have it taste salty. |
| C．They prefer it much more than northerners. |
| D．They prefer to have it more often to keep healthy. |
