Example 1: The widespread adoption of renewable energy sources is crucial for mitigating climate change and ensuring a sustainable future.
This topic sentence clearly states the author's position, supporting the widespread adoption of renewable energy. It presents a debatable point (the importance of renewable energy) and hints at two main aspects the article will discuss: mitigating climate change and ensuring sustainable development.
Example 2: Social media platforms should be held accountable for the spread of misinformation on their sites.
This topic sentence presents a controversial view, arguing that social media platforms should be responsible for the spread of misinformation on their websites. It clearly establishes the author's position and sets the direction for the subsequent argument.
Example 3: The implementation of a universal basic income could significantly reduce poverty and income inequality.
This topic sentence proposes a debatable policy suggestion (universal basic income) and points out two potential positive impacts. It foreshadows the main arguments that the article will explore for the readers.
Example 1: The process of photosynthesis involves three key steps: light absorption, energy conversion, and carbon fixation.
This topic sentence directly states the main concept (photosynthesis) that the paragraph will explain and its three key steps. It provides readers with a clear framework, summarizing the information that will be detailed in the following paragraph.
Example 2: Blockchain technology operates on four fundamental principles: decentralization, transparency, immutability, and security.
This topic sentence clearly lists the four basic principles of blockchain technology, providing readers with a definite structure and indicating that these principles will be explained in detail in the following text.
Example 3: The water cycle consists of four main stages: evaporation, condensation, precipitation, and collection.
This topic sentence summarizes the four main stages of the water cycle, providing readers with a clear conceptual framework and indicating that the paragraph will explain these stages in detail.
Example 1: As the old grandfather clock struck midnight, Sarah's ordinary summer night took an unexpected turn that would change her life forever.
This topic sentence sets the scene (summer night), introduces the main character (Sarah), and hints at a significant event about to occur. It sparks the reader's curiosity, making them want to continue reading to find out what happens next.
Example 2: The moment I stepped off the plane in Tokyo, I knew this adventure would be unlike anything I had ever experienced before.
This topic sentence introduces a key moment (arriving in Tokyo), hints at the adventure about to begin, and indicates that this will be a unique experience. It sets an expectant and excited tone for the entire story.
Example 3: It was the day of my high school graduation when I received the letter that would alter the course of my future.
This topic sentence sets an important background (high school graduation day) and introduces a key element (a life-changing letter), creating suspense and anticipation for the story about to unfold.
Example 1: This report evaluates the effectiveness of our company's new customer service initiative implemented last quarter and provides recommendations for further improvements.
This topic sentence directly states the main purpose of the report: to evaluate the new customer service plan and provide improvement suggestions. It clearly summarizes the core content of the document, allowing readers to quickly understand the focus of the report.
Example 2: The purpose of this memo is to outline the proposed budget for the upcoming fiscal year and highlight key areas of investment and cost-saving measures.
This topic sentence clearly states the purpose of the memo, which is to outline the budget proposal and highlight key areas of investment and cost-saving measures. It provides readers with a clear expectation of the document's content.
Example 3: This email serves to inform all employees about the upcoming changes to our company's work-from-home policy, effective next month.
This topic sentence directly states the purpose of the email, which is to notify employees about changes to the company's work-from-home policy. It concisely conveys the main information of the document, allowing readers to immediately understand the importance of the email.