G12 Latihan Soal STS 1: Identifying Topic Sentences

(1) Implementing a four-day school week would lead to significant financial savings for struggling school districts. (2) With schools closed for an extra day each week, operational costs such as electricity, heating, and cooling would see a dramatic decrease. (3) Furthermore, districts could save on transportation costs, including fuel and bus maintenance, and on substitute teacher pay, as teacher absences often spike on Fridays. (4) These savings could then be redirected into much-needed areas like teacher salaries, updated textbooks, and classroom technology, ultimately enhancing the quality of education without increasing the tax burden on residents. Which sentence is the topic sentence?

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(1) Many students report feeling overworked and burned out by the constant pressure of assignments and exams. (2) A mandatory pass/fail grading system would drastically reduce the intense anxiety and unhealthy competition currently plaguing our high schools. (3) Without the minute pressure of scoring a 92 instead of a 90, students could focus on the actual process of learning and understanding material. (4) This shift would promote more collaborative learning environments, as students would be less likely to see their peers as rivals and more likely to work together to master the subject matter. Which sentence is the topic sentence?

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(1) Some argue that plastic water bottles are necessary for convenience and emergency preparedness. (2) However, the environmental damage caused by single-use plastics is simply too severe to ignore. (3) Millions of tons of plastic waste end up in oceans each year, harming marine life and entering the food chain. (4) The production of these bottles also consumes vast quantities of fossil fuels and water, making them unsustainable from start to finish. (5) Therefore, the minor convenience they offer is outweighed by their long-term ecological cost. Which sentence is the topic sentence?

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(1) Studies have consistently shown a strong correlation between regular physical activity and improved academic performance. (2) Exercise increases blood flow to the brain, which enhances cognitive function, memory, and concentration. (3) Students who participate in physical education or sports are often more alert and able to focus better in their classes afterwards. (4) For this reason, cutting PE programs to add more instructional time is a counterproductive strategy that can actually diminish student achievement in core academic subjects. Which sentence is the topic sentence?

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(1) Firstly, universal access to public transportation is a matter of basic economic equity. (2) It provides a reliable and affordable means for low-income residents to get to work, attend job interviews, access healthcare, and buy groceries. (3) Without it, individuals who cannot afford a car are often isolated in "transit deserts," effectively cut off from opportunities that could improve their economic situation. (4) Investing in robust public transit is not just an infrastructure project; it is a powerful investment in reducing economic inequality and fostering social mobility. Which sentence is the topic sentence?

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