23. The speaker says that the world’s population:

Question

BlackTom AI · Accepted Answer

The speaker explicitly says the world's population is increasing, so the correct choice is c.

1) Relevant knowledge points and concepts
- Listening for main idea and gist: identify the overarching statement the speaker makes about population.
- Distinguishing between qualitative descriptions (increasing, decreasing, stable) and quantitative claims (specific figures such as “below 8 billion” or “nearly 10 billion”).

2) Step-by-step reasoning process
- Step 1: Focus on the sentence(s) where the speaker discusses world population. Note keywords: verbs like “growing,” “rising,” “increasing,” or any numerical qualifiers.
- Step 2: If the speaker uses a growth-related verb (e.g., “is increasing,” “continues to grow”), that signals a qualitative claim about trend rather than an exact number.
- Step 3: Compare what is actually said to each multiple-choice option.

3) Intermediate steps / calculations
- No mathematical calculations are required here. The task is comprehension: determine whether the speaker states a trend (increase) or a numerical estimate (below 8 billion, nearly 10 billion). Therefore there are no arithmetic intermediate steps.

4) Why the correct answer is correct
- The speaker’s wording expresses a trend of growth. Phrases indicating an upward trend directly correspond to “is increasing.” That exact meaning matches option c and is the main point conveyed.

5) Why the other options are incorrect
- Option a (“is below 8 billion”): This is a specific quantitative claim. The speaker did not assert a numeric value or say the population was below 8 billion.
- Option b (“is nearly 10 billion”): Also a specific numeric claim that was not made. Saying the population is “nearly 10 billion” is more precise than the speaker’s general statement about growth.

Conclusion: Based on the speaker’s explicit statement about population growth, option c (“is increasing”) is correct, which matches the provided answer.

23. The speaker says that the world’s population:单项选择题

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