In summer, millions of people will head for the beach．And while the ocean can be a great place to swim and play, it may also be useful in another way．Some scientists think that waves could help make electricity．
“Have you ever been on a surfboard or boat and felt yourself being lifted up by a wave? Or have you jumped in the water and felt the energy as waves crashed over you?” asked Jamie Taylor of the Wave Energy Group at the University of Edinburgh in Scotland．“There is certainly a lot of energy in waves．”
Scientists are working on using that energy to make electricity．
Most waves are created when winds blow across the ocean．“The winds start out by making little ripples (波纹) in the water, but if they keep on blowing , those ripples get bigger and bigger and turn into waves, ”Taylor said．“Waves are one of nature’s ways of picking up energy and then sending it off on a journey．”
When waves come towards the shore, people can set up dams or other barricades to block the water and send it through a large wheel called a turbine (涡轮) ．The turbine can then power an electrical generator (发电机) ．
The United States and a few other countries have started doing research on wave energy , and it is already being used in Scotland．
The resource is huge．We will never run out of wave power, besides, wave energy does not create the same pollution as other energy sources, such as oil and coal．
Oceans cover three quarters of the earth’s surface．That would make wave power seem perfect for creating energy around the world．There are some drawbacks, however．
Jamie Taylor said that wave power still cost too much money．He said that its effects on animals in the sea were still unknown．Besides, wave power would get in the way of fishing and boat traffic．
With more research, however, “many of these problems might be overcome,” Taylor said．“Demand for energy to power our TVs and computers, drive our cars, and heat and cool our homes is growing quickly throughout the world．Finding more energy sources is very important, for traditional sources of energy like oil and gas may run out some day．”
In the future, when you turn on a light switch, an ocean wave could be providing the electricity!We can infer from the passage that ______．
| A．finding new energy sources like wave energy is important |
| B．wave energy is a resource that will never run out and is used all over the world |
| C．wave power is perfect for creating energy around the world |
| D．wave power doesn’t create any pollution |
The underlined word “drawbacks” probably means ______．
| A．regrets | B．adventures | C．disadvantages | D．difficulties |
What can be the best title for the passage?
| A．How to Get Electricity by Waves． |
| B．A Huge Resource of Energy． |
| C．Can Waves Make Electricity? |
| D．The Disadvantages of Wave Energy． |
What Is Self-tracking All about
Have you ever monitored something about yourself? Perhaps you’ve tracked how many kilometers you’ve run, how many hours you’ve slept or how many calories you’ve eaten in a day.
If so, you’ve taken part in a movement called the “Quantified Self Movement.” Individuals gather information about their daily activities in this popular movement, also called self-tracking. This may sound difficult, but technology is making the process easier.
Perhaps you’ve wanted to change a bad habit but couldn’t. Self-tracking may be your answer. The idea is to take information about your everyday activities and analyze them to help form a healthier lifestyle.
Recently, tools such as smartphones, journals and apps, along with newly published wearable things, are making self-tracking extremely easy. Today, one can use Fitbit, the Jawbone Up, Google Glass or a smart watch to record personal data including sleeping hours, stress levels, heart rate and mood.
So why does a person self-track? Someone may be trying to lose weight or improve their sleep patterns. Another person feels tired after eating. Self-tracking could help him to know what foods make him sleepy and watch his diet.
Monitoring daily activities isn’t a new concept. In years past, athletes and their coaches kept notes detailing nutrition, training and sleep patterns in order to achieve an athletic goal. Similarly, doctors have also helped patients to record parts of their lifestyles and eating habits to help fight allergies, headaches and other health problems. However, it wasn’t until 2007 that magazine editors Gary Wolf and Kim Kelly, who started tracking every move they made, coined the term “Quantified Self.” Wolf says that the new tools will change our sense of self with the purpose of making us more effective in the world.
Although self-tracking has many advantages, Dennis Nash, president of Data Speaks Health Solutions, says self-tracking has its drawbacks. Once people start tracking their daily activities, it can become an addition people like to do often. Also, they might begin to worry too much about their health.
While self-tracking doesn’t guarantee that one’s quality of life will improve, it can highlight the importance of eating well and exercising daily. After all, the Quantified Self Movement’s focus is motivating people to apply enough energy to make healthier choices.People choose self-tracking because _______.
| A．it collects personal data and leads to self-improvements |
| B．it records how many hours you sleep a day |
| C．it watches your eating habits |
| D．it increases your movement |
The writer mentions tools such as smartphones and apps in Paragraph 4 to show _______.
| A．we depend too much on them |
| B．it is easier to do self-tracking |
| C．they do harm to people’s health |
| D．equipment is necessary to do self-tracking |
Self-tracking was firstly put forward by _______.
| A．scientists of Data Speaks Health Solutions |
| B．athletes and their coaches |
| C．doctors and their patients |
| D．two magazine editors |
You can find this article in the part of _______.
| A．Education | B．Entertainment | C．Health | D．News |
Papa’s Straw Hat
Papa was a ranger. He worked with horses. He always wore clean clothes with a hat even when he worked. His hat was always the same kind of a cowboy hat- large black hat of heavy wool. He wore his hat full and high. I think he wanted to look taller than he really was.
Mama was proud of the way he looked when he wore his hat and his best clothes. But in some way she got the idea that papa would lose his hair if he kept wearing a heavy wool cowboy hat in the hot weather. She began to talk about his hats.
“Papa,” she said one day, “why don't you get a nice cool straw hat? That heavy wool cowboy hat may cause losing hair!” Papa laughed at her and explained that the horses wouldn’t recognize him if he changed the hat. But she didn’t believe him.
Mama talked and talked about the hat all summer long. At last papa answered, a little angry, “It would not the cowboy hat but a wife’s talking about the hat that makes me lose my hair.”
Mama had a very serious look on her face. She went straight out and later came home with a straw hat. It was a bad year for ranger and we didn't have much money. She thought that if she spent the money for a straw hat, papa would wear it. When papa saw the hat, his face got red. Without a word, he pulled the straw hat down over his head until it hid his eyes and went on to train the horses.
He was a good ranger and gentle to his horses. But as papa got close to the horses this time, they jumped high into the air, raising their front feet. All of them ran around in the rounded field and then raced toward the barn. Papa began to shout “Woo boys. Steady boys, steady.” But there was nothing equal to.
Papa walked back straight to the stove in the kitchen, pushed the straw hat deep down into the fire then turned to mama, in a way that even frightened me. “Now listen to me, mama. Understand this I will never wear a straw hat or any other kind of hat my horses do not like.” Then he put on his wool cowboy hat and walked out of the house.
I never heard mama talk any more about hats. Perhaps, that is why when papa died many years later, there was a round spot on the top of his head where there was no hair.According to the passage, a ranger is _______.
| A．a person wearing a woolen hat |
| B．a position requiring clean clothes |
| C．a person training horses for some purpose |
| D．a person riding a carriage with horses |
Mama bought papa a straw hat because _______.
| A．most cowboys preferred to wear it |
| B．she was worried about his health |
| C．a woolen one didn’t suit papa |
| D．it was cheap and she could save money |
What quality can we learn from papa?
| A．Gentle. | B．Patient. | C．Committed. | D．Modest. |
It can be learned from the story that _______.
| A．this family were not rich but diligent |
| B．papa didn’t love the straw hat and mama |
| C．protecting hair was very important |
| D．a cowboy hat was useful on farming |
阅读下列短文，从每题所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。
A
Tips for Getting the Most out of a “Photo walk”
Photo walks are a great way to get out and get clicking, either by yourself, with a couple of friends, or with a group of people. They can be wonderful for seeing a neighborhood or wild space with new eyes, getting inspired to be more creative with angles and subjects, as well as simply spending time with fun people. Here are a few tips for making sure you get the most out of a photo walk.
Pick a spot with lots of interest
A photo walk is a perfect excuse to go exploring a new area. However, if you’ve never been to the scene before, you might be disappointed at the final photos. Base your chosen spot on what you feel like photographing---whether that is buildings, people, busy streets, a festival, nature and so on, and make sure the place you’re heading for is filled with what you most want to shoot. It will pay off in a satisfying walk if you research your chosen spot beforehand and know what to expect.
Invite anyone, no matter what their skill level is
You’ll be surprised at what you learn from people who seem to know nothing about photography. Even with a simple camera, they can catch some outstanding photos. So bring Aunt Betty or your 10-year-old nephew or anyone else whose company you might enjoy on a walk and keep an open mind.
Don’t forget them
Be sure to take the important small things, such as an extra memory card (or two), an extra fully charged battery, comfortable shoes and clothing. And remember a notepad and pen for taking down notes about places, times, conditions, the names and information of people you meet and any other information you might want to remember about certain shots.
Keep an eye out for danger
Apart from watching the sky for rain, you’ll want to watch out for other people as well. Smartphones are always a target for thieves but they have become much clearer about the value of digital cameras. Don’t make yourself a target by standing for a very long time holding your camera out in front of you. If you’re in an area that is really busy or you aren’t super comfortable, then just be careful about when to use your camera. Imagine your shot in your head before holding up your camera, or use a camera belt wrapped around your wrist or shoulder.To choose a place for a photo walk, you are suggested to _______.
| A．spend time discussing with fun people |
| B．decide the place on your interest |
| C．choose famous places |
| D．find a new area |
The people you go photo walking with _______.
| A．must know the area well |
| B．have learned photography |
| C．would like to explore the places for you |
| D．enjoy walking with you and keep an open mind |
You are supposed to hold the camera around your wrist or shoulder in case _______.
| A．it is stolen by a thief |
| B．it gets wet in the rain |
| C．it loses some information |
| D．it falls down on the ground |
The way we cook is important. In many countries, the two sources of heat used for cooking are natural gas or electric stoves. The World Health Organization(WHO) warns that millions of people are dying every year from indoor air pollution. The WHO finds that poor cooking, heating and lighting technologies are killing millions of people each year.
Indoor air pollution results from the use of dangerous fuels and cook stoves in the home. WHO officials say nearly three billion people are unable to use clean fuels and technologies for cooking, heating and lighting. And they say more than seven million people die from exposure to indoor or outdoor air pollution each year. Of that number, the WHO says about 4.3 million people die from household air pollution given off by simple biomass(生物燃料）and coal stoves.
These findings show that the home use of poisonous fuels is to blame for many of these deaths. These fuels include wood, coal, animal waste and so on. Carlos Dora is Coordinator in the WHO’ s Department of Public Health, Environmental and Social Determinants of Health. He says people should not use unprocessed coal and kerosene(煤油）fuel indoors. He says opening a window or door to let out the harmful air will not correct the situation. It will only pollute the outdoors. “New technologies and clean fuels can rid people of this problem.”
The United Nations found that more than 95 percent of families in sub-Saharan Africa depend on solid fuels for cooking. It says huge populations in India, China and Latin American countries, such as Guatemala and Peru, are also at risk.
Nigel Bruce is a professor of Public Health at the University of Liverpool. He says researchers are developing good stoves and other equipment to burn fuels in a more efficient way.“There are already many technologies for clean fuels available now. An effective and reasonably low-cost ethanol(酒精）stove that is made by Dometic (a Sweden-based company)is now being tested out. Another interesting development is electric induction stoves.” In India, you can buy an induction stove for about $8. And in Africa you can buy a solar lamp for less than $1.How is Paragraph 2 mainly developed?
| A．By making classifications. | B．By listing numbers. |
| C．By following time order. | D．By describing a process. |
According to Carlos Dora, what is the best solution to indoor air pollution?
| A．People should use an effective air cleaner. |
| B．People should use new technologies and clean fuels. |
| C．People should open a window or door to let out the harmful air. |
| D．People should prevent themselves from being exposed to harmful air.. |
What can we learn from the passage?
| A．Most of the deaths from indoor pollution are in developing countries. |
| B．Burning solid fuels can help limit indoor air pollution . |
| C．People can buy ethanol stoves made by Dometic in India. |
| D．There are already two technologies for clean fuels available for use. |
Which would be the best title for the passage?
| A．The way we cook is changing. |
| B．Cause of indoor air pollution. |
| C．The development of electric stoves. |
| D．Indoor air pollution kills millions each year. |
That woman carried a new blanket over her arm. Wordlessly, she gave it to me.
“Is it finished?” I asked.
She shook her head. “No. It is ready,” she replied. I handed her the money and took the blanket.
“It is beautiful, so skillfully woven(编织），” I said to my mother. “But what did she mean when she said it was not finished? How can it be ready if it is not finished?”
“I will tell you later,” my mother said, “but first I will take you to the Navajo village.”
We went down to the village. A group of young men were making sand pictures. We walked through the whole village, watching the different things the people were doing.
It was not until that evening that my mother finally explained the Navajo woman’s words.
“Did you notice anything about the things the people were making?” my mother asked.
“What should I have noticed?” I looked at her and asked.
“Each thing the Navajo make has one small part that is not complete. The designs in their sand pictures are often not perfectly done, for example---the line of a circle may not quite close. If you look carefully at your blanket, you will probably find a stitch(一针）missing.”
I took the blanket off, but it looked as perfect as any design could be. Then suddenly, I noticed that sure enough a stitch was missing!
“But why do the Navajo intentionally leave some tiny part unfinished?” I asked.
“They believe that when anything is completed or finished, it means the end has come--it will not be perfect until then. Then too, with a circle, they believe that they must leave a pathway for the bad spirits to run away and the good spirits to come in. So, often, they do not make the line close.”The blanket the author received_____ .
| A．was poorly woven. |
| B．made her think a lot. |
| C．cost her a lot of money. |
| D．was finished, but not ready. |
Why was the author shown around the village?
| A．To buy more things made by the Navajo. |
| B．To make friends with some of the Navajo. |
| C．To have a deeper understanding of the Navajo. |
| D．To look for the woman who sold her the blanket. |
Which of the following may the Navajo believe?
| A．A stitch in time is very important. |
| B．Life only becomes perfect when you die. |
| C．He who makes no mistake is a perfect man. |
| D．You must always try to make your life complete. |
What’s the main idea of the text?
| A．The Navajo are good at making things. |
| B．The Navajo are brave and hard-working. |
| C．A blanket tells a lot about the Navajo culture. |
| D．Skills are needed to do business with the Navajo. |