Questions 7-8. Listen to this introduction to a lecture about using smartwatches to monitor health and answer the following questions. Choose A, B or C as the best answer. 7. What is the purpose of the lecture?

Question

BlackTom AI · Accepted Answer

The lecturer’s goal is to show how smartwatches can be used to promote healthier personal behavior and to introduce practical strategies for doing so.

1. Relevant knowledge points and concepts
- Lecture introductions typically state the speaker’s aim (what they will explain or demonstrate).
- Key topic words in the prompt are “using smartwatches to monitor health” and “introduction to a lecture,” which imply focus on applications and strategies rather than market comparison or medical hazards.
- Common instructional aims: highlight benefits, describe methods, and recommend strategies for practical use.

2. Step-by-step reasoning
- Step 1: Note the topic given: “using smartwatches to monitor health.” That phrase centers on health monitoring and application, not on device popularity or safety risks.
- Step 2: Consider what an introduction would normally promise: an overview of how the devices can be used and the approaches or strategies for using them effectively to improve personal health.
- Step 3: Match this intent to the multiple-choice options.

3. Intermediate analysis (elimination of alternatives)
- Option a: “To compare the popularity of smartphones and smartwatches.” This would focus on popularity and comparison between devices. The lecture prompt emphasizes health monitoring, not market share or popularity, so a is inconsistent with the topic.
- Option c: “To discuss the medical risks of using smartwatches.” Discussing medical risks would emphasize hazards and safety concerns. The prompt frames smartwatches as tools for monitoring health, implying benefit and strategy rather than risk analysis. No indication of risk-focused content is given.

4. Why the correct answer is correct
- Option b: “To highlight new strategies to promote personal health.” This directly aligns with “using smartwatches to monitor health” — strategies to use monitoring data to encourage healthier behavior are exactly the logical content of such a lecture introduction. It captures both the device application (smartwatches) and the aim (promote personal health via new strategies).

5. Brief explanation why other options are incorrect
- a is incorrect because the prompt does not reference popularity or phones; it focuses on health monitoring.
- c is incorrect because the prompt suggests constructive use (monitoring and promotion), not a discussion of medical dangers.

6. Conclusion confirming the answer
- Therefore, the best choice is b. This matches the provided correct answer: b. To highlight new strategies to promote personal health.

Questions 7-8. Listen to this introduction to a lecture about using smartwatches to monitor health and answer the following questions. Choose A, B or C as the best answer. 7. What is the purpose of the lecture?Single choice

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