영어 모의고사 (자동 편성)

Exercise does far more than strengthen muscles and the heart; it also produces measurable changes within the brain itself. During sustained physical activity, the body ① releases a protein called brain-derived neurotrophic factor, which supports the growth of new neurons and ② strengthens connections between existing ones, particularly in regions associated with memory and learning. Studies comparing physically active students to sedentary peers have repeatedly found that the active group ③ performing better on tests of attention and problem-solving, even when the exercise session ends well before the test begins. Researchers believe that exercise increases blood flow to the brain, ④ delivering oxygen and nutrients more efficiently, while also reducing levels of stress hormones that can interfere with clear thinking. These findings have encouraged some schools ⑤ to schedule exercise before demanding academic classes.

Generation Z, typically defined as those born between the late 1990s and early 2010s, approaches shopping quite differently from previous generations. ①Having grown up with smartphones and social media, they research products extensively online before making even small purchases. Unlike older generations, ②who often valued brand loyalty above all else, many members of Generation Z prioritize a company's values. They also tend to favor secondhand and resale platforms, ③viewing sustainability as an important factor rather than an afterthought. Peer recommendations ④shared through short videos frequently ⑤carries more weight than traditional celebrity endorsements, since viewers see these creators as relatable rather than distant figures.

Psychologist John Suler proposed a concept called the online disinhibition effect, ①describing how people behave differently on the internet than they do face to face. Because usernames often hide real identities and screens ②create physical distance from others, individuals feel freer to express themselves without immediate social consequences. This freedom can be beneficial, allowing shy people to share honest feelings they would normally hesitate ③to reveal in person. However, the same anonymity frequently produces a darker outcome, encouraging users to post cruel comments they would never say to someone's face. Malicious remarks left under celebrities' photos or news articles ④illustrates how quickly this behavior can spread once a few users set the tone. Such comments often cause severe emotional harm to the people who ⑤receive them.

Open a music streaming app on any given morning, and a personalized playlist is usually already waiting, assembled overnight from songs the algorithm predicts will match a listener's current mood. This prediction relies on far more than genre alone; the system studies skip rates, replay counts, and even the time of day a song is typically played to build a remarkably ① detailed profile of individual taste. Listeners often ② praise the feature for introducing them to artists they never would have searched for on their own, effectively acting as a tireless music scout working around the clock. Musicians, meanwhile, have mixed feelings about this shift in how audiences discover new music. A song that the algorithm decides not to promote may ③ thrive among listeners no matter how well it was written, meaning that an artist's success can depend as much on pleasing an algorithm as on pleasing an ④ actual audience, a dependence some musicians find deeply ⑤ unsettling.

Soojin started posting short cooking videos on her phone during her last year of high school, never imagining it could become a career. At first, only a handful of friends watched her clips, and she nearly ①quit after several months without noticeable growth. She kept experimenting, however, adjusting her editing style and posting more ②consistently despite the discouraging numbers. Everything changed when one video demonstrating a simple recipe unexpectedly reached millions of viewers overnight. Within a year, Soojin was earning ③more from her online content than most entry-level jobs would have paid her. Still, she quickly learned that being a creator demanded ④minimal work, since algorithms rewarded frequent uploads and audiences expected fresh content daily. Looking back, Soojin realizes that persistence, rather than luck alone, transformed her hobby into a ⑤demanding profession.

Last January, Minji wrote the same resolution she always wrote: study English for an hour every day. By February, she had already quit, just as in previous years. Frustrated, she asked her teacher why her willpower always failed, and learned about a concept called ___________. This idea, developed by psychologists, means forming a specific if-then plan that links a certain situation to a certain action in advance. Instead of vaguely intending to study more, Minji made a precise plan: if she finished dinner, then she would study for thirty minutes.

Choice architecture is often praised for gently guiding people toward better decisions without limiting their freedom of choice. (A) For this reason, many public health officials now design forms so that healthy options are listed first and selected automatically. (B) Studies have found that simply changing the order in which cafeteria foods are displayed can shift what students choose to eat. (C) One striking illustration of this idea comes from school cafeterias, where the placement of food items strongly influences student behavior.

After a viewer finishes an episode, a streaming service rarely leaves the choice of what to watch next entirely up to chance. (A) The system is not without drawbacks, however, since favoring titles similar to what a viewer already enjoys can quietly narrow someone's exposure to unfamiliar genres, directors, or cultures. (B) Instead, a recommendation algorithm compares that viewer's habits with patterns drawn from millions of other users, then ranks thousands of titles in order of predicted interest. (C) This approach keeps viewers engaged far longer than a simple list of new releases ever could, which is precisely why streaming companies invest so heavily in refining it.

Sleep hygiene refers to a set of simple daily habits that help the body prepare for consistent, restorative rest. (A) They also advise reserving the bedroom for sleep alone, since using the bed to study, scroll through a phone, or watch videos teaches the brain to associate that space with wakeful activity rather than rest. (B) Physical environment matters as well: a cool, dark, and quiet room tends to produce deeper sleep than one that is warm, bright, or noisy. None of these individual habits guarantees a good night's sleep on its own, but together they form a routine that gradually trains the body to expect and enter sleep more easily, much the way a consistent set of cues trains an athlete's body to perform at a certain time each day. (C) Experts commonly recommend going to bed and waking up at the same time every day, even on weekends, because an irregular schedule confuses the body's internal clock and makes it harder to fall asleep on demand.

주어진 문장: Without independent verification, however, such labels can mean almost anything the company wants them to mean. Many companies today advertise their products as environmentally friendly, yet not all of these claims are accurate. ( ① ) This practice, known as greenwashing, involves exaggerating or fabricating a product's positive impact on the environment. ( ② ) Some brands print vague terms such as "natural" or "eco-conscious" on packaging without providing any evidence to support these labels. ( ③ ) Consumers, who are increasingly concerned about climate change, often trust such claims without questioning them closely. ( ④ ) As a result, they may pay higher prices for products that are no more sustainable than ordinary alternatives. ( ⑤ ) Therefore, governments should establish clear standards that require companies to prove their environmental claims with verifiable data.