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安徽省宣城市2020-2021学年高二上学期英语期末试题

作者UID:9673734
日期: 2024-09-19
期末考试
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Do you like running enough to make it a habit? Tierney Wolfgram does; she has made running a lifelong career and isn't stopping.

In February, the 16-year-old from a high school, US, competed at the 2020 US Olympic Trials. She finished the marathon (42.195 km) with a time of 2:42:47 as the youngest competitor in the race and ranked 76th out of 390 runners. However, the cross-country(越野的)season was postponed to winter because of the COVID-19. So she jumped at the opportunity to train for another race-the Parkway Marathon in California. In November, Wolfgram broke the Women's American Junior marathon record with her time of 2:31:49. The old record was 2:34:32, which had stood since 1984.

"I'm completelystunned, "said Wolfgram's coach. "I knew she was going to break it, but she really showed out!"

During the run, Wolfgram once hit a wall pretty hard, but she overcame it to finish. "I guess I can say I gave it my all, "she told Runner's World. "When I finished, all I was thinking was I felt super happy, " Wolfgram said This was only her third marathon. In 2018, when Wolfgram was 15 years old, she ran her first marathon just because she wanted to see if she had the ability to do it. "I believed that I would get faster as the distances got longer… I'm still glad that I did it. "

When preparing for that first marathon, she ran up to 120 miles per week. Although her parents didn't have any background in running, they helped Wolfgram train. At first, her dad would take her out in the morning and run about 13 miles. The distance would gradually increase each day. On top of her runs in the morning, she would do cross-country practice after school.

Now Wolfgram will consider attending the Olympics Games in 2024 after it's scheduled.

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Culture can affect not just language and customs, but also how people experience the world on surprisingly basic levels.

Researchers, with the help of brain scans, have uncovered shocking differences in perception(感知) between Westerners and Asians, what they see when they look at a city street, for example, or even how they perceive a simple line in a square, according to findings published in a leading science journal

In western countries, culture makes people think of themselves as highly independent entities(实体) .When looking at scenes, Westerners tend to focus more on central objects than on their surroundings. East Asian cultures, however emphasize inter-dependence. When Easterners look at a scene, they tend to focus on surroundings as well as the object.

Using an experiment involving two tasks, Dr Hedden asked subjects to look at a line simply to estimate its length, a task that is played to American strengths. In another, they estimated the line's length relative to the size of a square, an easier task for the Asians.

The level of brain activity, by tracking blood flow, was then measured by Brain Scanners. The experiment found that although there was no difference in performance, and the tasks were very easy, the levels of activity in the subjects' brains were different. For the Americans, areas linked to attention lit up more, when they worked on the task they tended to find more difficult--estimating the line's size relative to the square. For the Asians, the attention areas lit up more during the harder task also--estimating the line's length without comparing it to the square. The findings are a reflection of more than ten years of previous experimental research into east-west differences

In one study, for instance, researchers offered people a choice among five pens, four red and one green. Easterners were more likely to choose a red pen while Westerners were more likely to choose the green one.

Culture is not affecting how you see the world, but how you choose to understand and internalize(使内化) it. But such habits can be changed. Some psychological studies suggest that when an Easterner goes to the West or vice versa, habits of thought and perception also begin to change. Such research gives us clues on how our brain works and is hopeful for us to develop programs to improve our memory, memory techniques and enhance and accelerate our learning skills.

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Artificial Intelligence (AI) advice is as influential as humans', but positive crowd views still overpower.

In a study, researchers found that machines that make recommendations-or AI experts-were as influential as human experts when the AI experts recommended which photo users should add to their online business profiles. However, both AI and human experts failed tobudge themif their feedback was negative and went against popular views among other users, said S. Shyam Sundar, a professor of Media Effects.

Because people are increasingly using social media to look for feedback, studies suggest that expert opinions and thebandwagon effect(从众效应) may be important factors in influencing decisions. According to Jinping Wang, a doctoral candidate in mass communication and first author of the study. "Nowadays, we often turn to online platforms for opinions from other people-like our peers and experts-before making a decision, " said Wang. AI experts are often less expensive than human experts and they can also work 24 hours a day, which, Wang suggests, might make them appealing to online businesses.

The researchers also found that the AI'sgroup status(群体地位) -in this case, national origin was pointed out-did not seem to affect a person's acceptance of its recommendation. Among human experts, however, an expert from a similar national origin who offered a negative opinion of a photograph tended to be more influential than a human expert from an unknown country who offered a similar negative rating of a photograph.

While findings that suggest group status may not affect whether a person values the view of AI experts sound like good news, Sundar suggests that the same culturalbiases(偏见) might still be at work in AI experts for they could be hidden in the programming and training data.

"It can be both good-and bad-because it all depends on what you feed AI, " said Sundar. "While it is good to believe in AI's ability totranscend(超越) cultural biases, we have to keep in mind that if you train the AI on pictures from one culture, they could give misleading recommendations on pictures meant for use in other cultural contexts."

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Food safety is a problem in all places around the world and people in different areas of the world prepare foods in different ways. The WHO released five simple rules for preparing food in a safe way.

Key 1: Keep clean

The first key tells about the importance of washing. People should wash their hands often—before touching food, while they are preparing food, and any time after they go to the toilet People should wash all surfaces and equipment used for preparing food.

Key 2: Separate raw and cooked

People should separate raw, or uncooked food from foods that are already cooked and foods that will not be cooked. People should store raw meat, chicken, and fish in containers, or in separate areas Raw foods should not touch prepared foods.

Key 3: Cook completely.

People should cook eggs and meat, like birds, seafood, and animals, especially carefully. These foods may carry more micro-organisms than other foods.  It is also important that people re-heat cooked food completely.

Key 4:

When people are finished with eating, they should keep the leftover(吃剩的食物)in a refrigerator below 5℃ and shouldn't store it for too long. At room temperature, about 20℃, the amount of micro-organisms can increase very quickly. But temperatures above 60℃ or below 5℃ control the growth of micro-organisms.

Key 5: Use safe water and raw materials.

People should use safe water and choose fresh foods. Damaged or old food may develop harmful chemicals as it gets older.

A. Keep food at safe temperatures.

B. Eat cooked food immediately, while it is still hot.

C. They call these rules the "Five Keys to Safer Food."

D. Keeping everything clean helps people to avoid micro-organisms.

E. They cannot grow so quickly in a very hot or very cold environment.

F. People should also protect cooking areas and food from insects and animals.

G. Food like soup must be boiled for at least a minute to make it be cooked completely.

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