1 . We may think we're a culture that gets rid of our worn technology at the first sight of something shiny and new, but a new study shows that we keep using our old devices(装置) well after they go out of style. That’s bad news for the environment — and our wallets — as these outdated devices consume much more energy than the newer ones that do the same things.
To figure out how much power these devices are using, Callie Babbitt and her colleagues at the Rochester Institute of Technology in New York tracked the environmental costs for each product throughout its life — from when its minerals are mined to when we stop using the device. This method provided a readout for how home energy use has evolved since the early 1990s. Devices were grouped by generation — Desktop computers, basic mobile phones, and box-set TVs defined 1992. Digital cameras arrived on the scene in 1997. And MP3 players, smart phones, and LCD TVs entered homes in 2002, before tablets and e-readers showed up in 2007.
As we accumulated more devices, however, we didn't throw out our old ones. "The living-room television is replaced and gets planted in the kids' room, and suddenly one day, you have a TV in every room of the house," said one researcher. The average number of electronic devices rose from four per household in 1992 to 13 in 2007. We're not just keeping these old devices — we continue to use them. According to the analysis of Babbitt's team, old desktop monitors and box TVs with cathode ray tubes are the worst devices with their energy consumption and contribution to greenhouse gas emissions（排放）more than doubling during the 1992 to 2007 window.
So what's the solution（解决方案）? The team's data only went up to 2007, but the researchers also explored what would happen if consumers replaced old products with new electronics that serve more than one function, such as a tablet for word processing and TV viewing. They found that more on-demand entertainment viewing on tablets instead of TVs and desktop computers could cut energy consumption by 44%.
1. What does the author think of new devices?| A．They are environment-friendly. | B．They are no better than the old. |
| C．They cost more to use at home. | D．They go out of style quickly. |
| A．To reduce the cost of minerals. |
| B．To test the life cycle of a product. |
| C．To update consumers on new technology. |
| D．To find out electricity consumption of the devices. |
| A．The box-set TV. | B．The tablet. |
| C．The LCD TV. | D．The desktop computer. |
| A．Stop using them. | B．Take them apart. |
| C．Upgrade them. | D．Recycle them. |
1.表示感谢；
2.相关介绍；
3.对听众的要求。
注意：
1.词数80左右；
2.请在答题卡的相应位置作答。
Dear fellow students,
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That’s all, thank you.
3 . As the world seeks to slow the pace of climate change and preserve wildlife, trees undoubtedly hold a major part of the answer. Yet the mass destruction of trees--deforestation-continues, sacrificing （牺牲）the long-term benefits of standing trees for short-term gain.
So, what are the factors leading to deforestation? Farming, animal raising, mining, and drilling combined account for more than half of all deforestation.
Luckily, a movement is under way to preserve existing forest ecosystems and restore lost tree cover. Organizations and activists are working to fight illegal mining and logging. As consumers, it makes sense to look for sustainably produced sources.
| A．Yet the effects of deforestation reach much farther. |
| B．Globally, forests are disappearing at an alarming rate. |
| C．Wildfires and urbanization also account for a small part, |
| D．Deforestation affects people and animals and even the wider world. |
| E．With these joint efforts, many conservationists see reasons for hope. |
| F．Deforestation is responsible for around 15% of all greenhouse gas emissions. |
| G．Some deforestation is caused by a combination of human and natural factors. |
4 . Fresh fish should have a mild smell. Strong fishy smells are the first signs to go bad. How do the fishy smells come from?
It can be several days from when the fish are caught to when they reach the supermarket. In that time, bacteria that grow naturally in fish start to consume a substance called trimethylamine N-oxide(TMAO)in fish. These bacteria change TMAO into trimethylamine (TMA), the substance responsible for the fishy smells. Bacteria in fish can also change lysine(赖氨酸)into cadaverine(尸胺), a substance that’s associated with breaking down the fish once they are caught and giving off fishy smell.
Chemical reactions can also lead to fishy smells. This happens through the oxidation(氧化)of fat. Fish are an important source of omega-3 fatty acids. When these fats are exposed to oxygen, they oxidize and break down into the substance that you can smell.
To slow down the fishy smell, what is beyond question is that the less time between when the fish are caught and when they reach the kitchen, the better. But today, fish are often flown across the globe. To keep smell-producing bacteria at bay, the fish must be frozen or kept at the low temperature possible as soon as they are caught and cleaned.
Controlling fat oxidation can function as well, especially for fattier fish species. While freezing slows bacterial growth, it does not stop fat oxidation. This reaction will occur as long as oxygen is present. Fatty fish are usually not frozen because, despite the cold temperature, they’re going to oxidize pretty fast unless they are stored in a low oxygen container. That’s why those species are often canned.
It’s also important to remember that smell is not always an indicator of safety, especially in processed fish products. “What you might consider the fishy smell may be a delicacy in another culture,” said Carl A. Batt, a professor of food science at Cornell University.
1. Which of the following has the fishy smell?| A．Fish fat. | B．TMAO. | C．Cadaverine. | D．Lysine. |
| A．Drying them in the air. | B．Storing them in closed containers. |
| C．Carefully cleaning them. | D．Exposing them to rich oxygen. |
| A．Objective. |
| B．Negative. |
| C．Acceptable. |
| D．Unclear. |
| A．Topic—Example—Conclusion. | B．Topic—Comparison—Opinion. |
| C．Question——Cause——Solution. | D．Question—Effect—Opinion. |
One Saturday morning, I got a call from my aunt. She told me that she had to go with my uncle on a business trip for the day, and she wondered if I could look after my little 6-year-old cousin, Max. I knew that for them, leaving their dearest son for a day was the last thing in the whole world they would do, because they were what is known as “helicopter parents”, who keep watching everything their kids do. As a high school student, I knew exactly that children who were brought up by helicopter parents could end up having many problems and I hoped I could do something to improve the situation, so I accepted her request. Actually, I was honored to be trusted by such parents.
When I arrived there, my aunt and uncle were just ready to go out. The last thing my aunt said to me before they left was “Don’t let him hurt himself while we are away.” She repeated it several times until she thought I took it seriously. After they left, I tried to teach Max to play some games that might be against my aunt’s will, but failed. Max seemed not to be interested, and even frightened. I didn’t want to push him, so I decided to slow it down.
Around lunch time, Max asked me what was for lunch. I said, “I don’t know, what do you want?” He said, “Can you cook scrambled eggs?” I replied, “Of course I can!” “Well,” said Max, “I want some.” I asked him if he could cook. He looked at me in amazement, and said, “Of course not. Mom won’t allow me to approach the kitchen. She thinks I’ll be burnt if I try to do that, but I think it would be amazing to cook what I like on my own.”
Paragraph 1:
Suddenly, I had an idea.
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Paragraph 2:
When my aunt and uncle returned, they saw Max cooking a dinner in the kitchen.
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1. 活动的时间和地点；
2. 活动的内容；
3. 个人感想。
注意：短文词数应为80个左右。
参考词汇：冬令营 winter camp
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1. 讲座内容；
2. 邀请理由；
3. 时间和观看方式。
注意：
1. 写作词数应为80左右；
2. 请按如下格式在答题卡的相应位置作答。
Dear Thomas,
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Yours,
Li Hua
8 . Have you ever wondered how the trainers at Sea World get the 19,000-pound whale to jump 22 feet out of water and perform tricks? They get that whale to go over a rope farther out of the water than most of us can imagine.
So how do the trainers at Sea World do it? The first thing they do is reinforce(强化) the behavior that they want repeated --- in this case, to get the whale to go over the rope.
Positive reinforcement is the key of that simple principle that produces such splendid results. And as the whale begins to go over the rope more often than under, the trainers begin to raise the rope. It must be raised slowly enough so that the whale doesn’t starve.
So we need to set up the circumstances so that people can’t fail. Over-celebrate, under-criticize…and know how far to raise the rope.
| A．This is a great challenge |
| B．And the whale stays right where it is |
| C．If we figure out a way to motivate the whale |
| D．They start with the rope below the surface of the water |
| E．If we under-criticize, punish and discipline less than expected |
| F．Whales are taught that their negative behavior won’t be acknowledged |
| G．The simple lesson to be learned from the whale trainers is to over-celebrate |
Sarah lived in a big family—four children with three sisters older than her. Father worked hard on the farm all day long to support the family. They had to save every penny to make ends meet.
One winter morning in March, Sarah put on her old spring coat to go out and play. “These buttons don't work,” Sarah said lo Mama. Just then, Mama noticed that this coat was too small for Sarah, She promised Sarah that after her sisters left for school, she would check the hand-me-downs (旧衣) for a coat that fit.
When the house was quiet. Mama went to the hall closet and pulled out all the old spring coats. But she could not find a suitable one for Sarah—Sylvia’s were too big, Susan’s too spotted, and Sally's too ragged. The coats were fine far play. But Sarah had no coat for church and (own and special occasions. Mama told it to Papa when he came in from the bam (布棚), after feeding the cows.
Papa sat down at the table. “Are you sure Sarah can't wear a hand-me-down?” he said. “It's either a new coat or a ragged coat,” Mama said. Papa frowned, staring out at the front yard. “Sarah has never had a new coat,” Mama added.
For a long while, nobody spoke. The fire in the wood stove crackled (发出劈啪声). Sarah looked closely at Papa. Then Papa cleared his throat. “A ragged coat won't do,” he said. “Sarah，are you old enough to lake care of a new coat?” “Yes, Papa,“ Sarah said, "I'm old enough to do almost anything.” Papa gave her a serious look. “Very well,” he said. “While we are in town today, we'll buy you a coat of your very own.” After they had eaten the soup, they headed for town in Papa's old truck.
注意：
1,续写词数应为150左右：
2.请按如下格式在答题卡的相应位置作答.
“May I assist you?” the clerk asked, after they went inside the clothes store.
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The pink coat fit Sarah perfectly, but it seemed that it would only fit one year.
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Rivers are one of our most important natural resources. Many of the world’s great cities are located on rivers and almost every country has at least one river
Since the beginning of history, people
