What is the central idea of this passage?

Correct Answer: C

Rationale: The central idea of the passage is to highlight the significance of understanding insects in ecosystems, not just focusing on their adaptability or life transitions. Choice A is incorrect as the passage does not introduce specific insects transitioning from water to air. Choice B is incorrect as the main focus is not solely on how insects adapt to their environment, but on their broader role in ecosystems. Choice D is incorrect as the passage does not discuss the duality of insect life, but rather their importance in the ecosystem.

Correct Answer: A

Rationale: The repetition of 'I had a dream' in the text serves to emphasize the speaker's excitement and vision. By repeating this phrase, the author highlights the importance and impact of the dream, reinforcing the central theme of hope and aspiration. Choices B, C, and D are incorrect because the primary purpose of the repetition is not persuasion, demonstration of authority, or creating a rhythmic effect, but rather to underscore the speaker's emotions and aspirations.

Correct Answer: B

Rationale: The author stresses the significance of buying locally grown food due to its minimal travel distance, which results in reduced resource utilization. This aligns with the passage's primary environmental theme of conserving resources for the future. Choice A is incorrect because although buying locally grown food can support the community, the main focus in the passage is on resource conservation. Choice C is incorrect as the passage emphasizes the importance of packaging but does not specifically mention that locally grown food uses less packaging. Choice D is incorrect as the health aspect related to fewer pesticides is not discussed in the passage regarding the importance of buying locally grown food.

Correct Answer: C

Rationale: The author implies that neglecting the recommended actions will lead to the continued degradation of the environment and depletion of resources. The passage emphasizes the importance of being proactive in conserving resources to combat global warming and the depletion of natural resources. Choice A is incorrect because the author doesn't specify a timeframe for running out of resources. Choice B is incorrect as the focus is on environmental impact rather than economic consequences. Choice D is incorrect as the passage does not specifically mention the impact on local farmers.

Correct Answer: D

Rationale: In this context, 'consumption' refers to the use or depletion of resources like water and energy. It is not about using the greatest amount (choice A) or the least amount (choice C) but about being mindful of how much you use to avoid depletion. 'Illness of the lungs' (choice B) is completely unrelated to the context of resource conservation discussed in the passage.