영어 모의고사 (자동 편성)

When Mina was a freshman, she often ①spent her allowance within a few days. Her older cousin told her about the marshmallow experiment, a famous study ②in which children could eat one marshmallow immediately or wait for two. Researchers found that children who waited longer ③shown better academic performance and self-control years later. Inspired by the study, Mina began ④saving half of her allowance each week instead of spending it all on snacks. After three months, however, she had saved enough to buy a bicycle she had ⑤wanted for over a year.

Many students wonder why club activities matter so much for their school life record, a document ①that summarizes what a student did during each semester. Whenever students take part in a club, their teacher writes a short note ②describing what role they played and how they grew. For example, a student ③who organized a club exhibition might be described as someone who showed strong leadership and creativity. These notes are not simply a list of activities; they explain the process behind each achievement. Therefore, admissions officers at universities read the record carefully ④understand a student's genuine interests, not just their grades. In contrast, a club membership with no real participation rarely leaves a meaningful impression. This is why teachers encourage students ⑤to take an active role rather than joining a club only for its name.

Every October, Greenfield High School holds a festival that _______________. This year's festival will take place on October 15th, running from nine in the morning until four in the afternoon. Clubs that want to run a booth must apply to the student council by October 1st, since space in the gym is limited. The science club will present simple experiments that are both safe and exciting to watch. The art club, meanwhile, will display paintings that members have created throughout the semester. The cooking club plans to sell snacks prepared by its own members, and all the profits will be donated to a local shelter. Because many visitors are expected, teachers will supervise each booth carefully to keep students safe. Anyone curious about club life is warmly encouraged to visit and enjoy the festival.

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.

Behavioral economists use the term temporal discounting to describe how people undervalue future rewards simply because those rewards are not immediate. This tendency explains why a student might choose to watch videos tonight rather than study for an exam that remains several weeks away, even though studying offers a greater long-term benefit. A distant reward, no matter how valuable, feels psychologically smaller than a small reward available right now. This bias contributes to procrastination, since future consequences rarely feel urgent enough to motivate immediate action. To counter this tendency, students should convert distant goals into smaller, near-term milestones that feel more emotionally real. Setting weekly checkpoints rather than a final deadline can make future benefits feel closer and more concrete. Teachers and parents should provide immediate, meaningful feedback, since ___________.

Dear members of the Debate Club, I am writing to let you know that our regular meeting time has been changed. We usually meet in Room 304 every Wednesday after school, but _______________. Instead, our meeting will be held in the library on Thursday at the same time. Please bring the debate topic that you prepared last week, since we will practice our arguments together. If you cannot attend the new meeting time, please reply to this email by Tuesday evening. We also need two volunteers to arrange the chairs and tables before the meeting begins. Mr. Park, our club advisor, will join us this time to give feedback on our speaking skills. Thank you for your understanding, and I look forward to seeing everyone on Thursday.

During the sports day relay race, Jun was nervous, and his hands were shaking as he waited for the baton. When his turn came, he grabbed the baton but nearly dropped it while turning the first corner. (A) As he handed the baton smoothly to the next runner, he realized that the team's effort mattered more than his mistake. (B) His teammates, watching from the field, shouted his name and encouraged him to keep running. Even though Jun felt embarrassed, their cheering gave him confidence to focus on the runner ahead of him. (C) After the race, his teammates gathered around him and said that his recovery had kept the team in the competition. Jun understood then that teamwork means supporting each other even after something goes wrong. His class did not win first place, but they celebrated together as if they had.

Not long ago, Junho felt he needed to check his phone every few minutes just to keep up with his friends. (A) During this unplanned break from his phone, he was surprised to discover that he actually felt calmer rather than anxious. (B) Encouraged by this experience, he began setting aside phone-free hours on purpose, gradually growing comfortable with being offline. (C) This constant checking left him drained, until one day his phone battery died unexpectedly during a trip.

This slow but steady growth is exactly what turns a single visit into a lifelong value. Our school's volunteer club, Helping Hands, tries to make small acts of kindness feel natural. ( ① ) Each month, students visit a nearby nursing home and spend an afternoon talking with elderly residents. ( ② ) For example, they read newspapers aloud or just listen to old stories from the residents. In addition, members collect used books and toys from classmates and donate them to a community center downtown. ( ③ ) Some students feel nervous before their first visit, unsure of what to say to strangers. However, most discover that a warm smile works better than perfect words. ( ④ ) Therefore, the club's real goal is not just finishing hours for a report card. Instead, it teaches members that caring for others grows into a lasting habit, like watering a plant daily. ( ⑤ ) By the end of the year, many students say the club changed how they see their community.

The practical consequence of this precision has been a dramatic acceleration in the pace of genetic research itself. Bacteria have been cutting up invading viral DNA for billions of years, long before any scientist thought to borrow the trick for use in a laboratory. ( ① ) The CRISPR-Cas9 system, as it is now known, relies on a short guide RNA that matches a specific DNA sequence, leading a scissor-like enzyme called Cas9 directly to that exact location in the genome. ( ② ) Once Cas9 arrives at the target site, it slices both strands of the DNA helix, and the cell's own repair machinery rushes in to mend the cut, often introducing a small change in the process. ( ③ ) By supplying the cell with a template during this repair step, scientists can direct that machinery to insert a specific new sequence. ( ④ ) This goes well beyond merely disabling the original gene. ( ⑤ ) What once required years of painstaking work to alter a single gene can now, with a properly designed guide RNA, be accomplished within days.