영어 모의고사 (자동 편성)

Every cell in the human body follows an internal timer known as the circadian rhythm, a roughly twenty-four-hour cycle ① that governs when we feel alert and when we feel drowsy. This clock is regulated primarily by a tiny cluster of neurons in the brain ② that responds to light entering through the eyes. When morning sunlight strikes the retina, the cluster signals the body ③ to suppress sleep hormones and raise body temperature, preparing us for activity. As evening approaches and light fades, the same mechanism triggers the release of melatonin, a hormone ④ promotes drowsiness. Because this rhythm evolved around the natural cycle of day and night, modern habits such as staying indoors under artificial light or working night shifts can push the internal clock out of sync with the external environment. Such misalignment does not simply cause tiredness; it has also ⑤ been associated with digestive problems and reduced concentration, suggesting that timing matters as much as total sleep hours.

The gig economy, in which people take on short-term or freelance jobs, ①has grown rapidly over the past decade. Digital platforms now connect customers directly with drivers, designers, and writers, ②allowing workers to choose when and how much they work. Businesses, meanwhile, can hire help only when they ③actually need it. For many young people entering the job market, gig work provides valuable flexibility ④that traditional employment rarely allows. However, gig workers often lack benefits such as health insurance, which full-time employees typical ⑤receive.

Psychologists who study daily behavior describe habits through a model ①called the cue-routine-reward loop. This theory explains that every habit begins with a cue, a signal that ②tell the brain to start an automatic behavior. The brain then performs a routine, ③which is the action itself, whether physical or mental. Finally, the brain receives a reward, a positive feeling that makes it want ④to repeat the same behavior. For example, a notification sound can act as a cue that leads a student to check a phone, and the relief from boredom becomes the reward. Similarly, opening a refrigerator out of habit rather than hunger shows how a routine can run without conscious thought. Because this loop operates automatically, breaking a bad habit requires changing the routine while keeping the same cue and reward. Understanding this structure helps people redesign daily patterns more effectively than ⑤relying on willpower alone.

Standard economic theory assumes that money is fungible, meaning that a dollar earned as salary is functionally ①identical to a dollar received as a tax refund or won in a lottery. In practice, however, people routinely sort their finances into separate mental accounts, treating money differently depending on its source or intended purpose. A household that would never dip into its retirement savings to pay for a vacation might nonetheless spend an unexpected bonus on that very trip without ②hesitation, even though both sums are, in strictly financial terms, equally available for either purpose. This ③compartmentalization can produce decisions that appear ④consistent when viewed through a purely rational lens: the same individual who diligently saves a portion of every paycheck may simultaneously carry high-interest credit card debt, effectively paying more to borrow than they earn on their savings. Mental accounting is not always harmful, however; by assigning specific categories to specific funds, individuals can also impose useful ⑤discipline on their spending, preventing money earmarked for essential needs from being diverted toward impulsive purchases.

Marketers have long recognized that perceived scarcity, the sense that a product or opportunity is available only in limited quantity or for a limited time, can dramatically increase its ①desirability, even when the item's intrinsic qualities remain entirely unchanged. This phenomenon, known as the scarcity effect, operates on a simple psychological principle: when something appears ②easy to obtain, people tend to infer that it must be valuable, since truly worthless items rarely generate genuine competition for possession. A retailer who labels a product as "limited edition" or displays a countdown timer beside a discounted offer exploits this inference, prompting customers to make ③hurried purchase decisions they might otherwise postpone or reconsider. Experimental studies confirm that identical products are rated as more desirable and often command ④higher prices when framed as scarce than when the same products are presented as widely and continuously available. Consumers who later reflect calmly on such purchases frequently discover that the item's actual usefulness fell well short of the ⑤urgency they experienced at the moment of decision.

Last Saturday, Jimin visited the recycling center near her apartment with her science class. She had expected the place to be dirty and unpleasant, but _______________. A worker named Mr. Park guided the students through each area, explaining how bottles, cans, and paper were sorted. He showed them a machine that crushed plastic bottles into small pieces before they were sent to factories. Jimin was surprised to learn that mixed trash, thrown into the wrong bin, often ruined an entire batch of recyclables. For example, one greasy pizza box could contaminate a whole pile of clean paper. However, when items were sorted correctly, they could be reused many times, almost like ingredients in a favorite recipe. Walking home, Jimin realized that her small effort at home truly mattered. She decided to sort her family's trash more carefully.

주어진 문장: This short exercise will make your motivation much clearer to yourself. This workbook is designed to help you set meaningful goals for the new year, so please read the instructions carefully before you begin. First, turn to page one and write down one goal you truly want to achieve this year. Next, complete the reason section by explaining why this goal matters to you. ( ① ) On page two, break your goal into four smaller monthly steps, using the space provided for each month. ( ② ) Then, use the weekly checklist on page three to track your progress every Sunday. ( ③ ) If you fall behind schedule, do not simply give up; instead, revise your steps in pencil and keep moving forward. ( ④ ) At the end of each month, write a short reflection about what worked well and what you might change. ( ⑤ ) Completing this workbook will help you stay focused and turn your goal into a real habit.

주어진 문장: Unlike a rigid vegan diet, this approach does not require anyone to give up their favorite dishes completely. A flexitarian is someone who mainly eats plant-based meals but occasionally includes meat or fish, unlike a strict vegetarian who avoids animal products entirely. ( ① ) This flexible diet has recently gained attention as a practical way to fight climate change, since raising livestock produces a significant portion of global greenhouse gas emissions. ( ② ) Cattle, in particular, release large amounts of methane, a gas far more powerful than carbon dioxide at trapping heat in the atmosphere. ( ③ ) By replacing just a few meat-based meals each week with vegetables, grains, or legumes, individuals can noticeably shrink their carbon footprint without giving up meat completely. ( ④ ) Nutritionists also emphasize that flexitarian eating is easier to maintain than full vegetarianism, because it allows flexibility rather than demanding absolute discipline. ( ⑤ ) Therefore, many environmental groups now promote flexitarianism as a realistic first step, believing that gradual change, rather than sudden restriction, is more likely to spread widely across society.

주어진 문장: Determined not to give up completely, she decided to find out what had gone wrong. Last January, Minji decided that she would run three kilometers every morning before school. ( ① ) For the first week, she woke up early and ran happily, feeling proud of her new habit. ( ② ) However, after a few cold mornings, she began oversleeping, and soon she stopped running altogether. ( ③ ) By February, she felt disappointed and believed she simply lacked willpower. ( ④ ) One evening, her older brother asked her why the plan had failed, and together they looked closely at her daily schedule. ( ⑤ ) They realized that running before sunrise in freezing weather had been too difficult to maintain, so she changed her plan and decided to run after school instead, when the weather was warmer and she had more energy.

주어진 문장: He paused for a moment, feeling unsure about what the right choice really was. One Saturday morning, Jiho carried a heavy bag of old clothes to the donation box near his apartment. He had grown taller over the winter, so many shirts no longer fit him. ① At first, he almost threw the clothes into the regular trash without thinking twice. ② However, his older sister reminded him that clean clothes could still help someone else. She explained that donating clothes was like giving a plant a second chance to grow. ③ For example, a jacket he had outgrown might keep another child warm this winter. ④ Therefore, Jiho folded each shirt neatly and placed them gently inside the box. In contrast to his first careless idea, he now felt genuinely happy about his choice. ⑤ Walking home, Jiho realized that small actions could create meaningful change for others.