solve---Here is the extraction from the image:
**Question 1:**
Mark for Review
**Text Passage:**
Building additional road capacity may seem like an obvious solution to traffic congestion, but numerous studies have cast doubt on the _______ of that approach. Not only does additional road capacity often fail to relieve congestion, but it can also make traffic worse by encouraging more people to drive.
**Question Stem:**
Which choice completes the text with the most logical and precise word or phrase?
**Options:**
A. efficacy
B. aesthetics
C. originality
D. popularity
视频信息
答案文本
视频字幕
Let's analyze this reading comprehension question. We have a passage about road capacity and traffic congestion. The blank asks for a word that describes what studies have cast doubt on regarding building additional roads. Looking at the context, the passage explains that this approach often fails and can make traffic worse, so we need a word meaning effectiveness.
Let's identify the context clues. The phrase 'studies have cast doubt' suggests questioning something's effectiveness. The text then explains that additional road capacity 'often fails to relieve congestion' and 'can make traffic worse.' These clues all point to questioning the effectiveness or ability to produce desired results.
Now let's analyze each answer choice. Option A, efficacy, means the ability to produce a desired result, which perfectly matches our context about questioning effectiveness. Option B, aesthetics, relates to beauty and is irrelevant. Option C, originality, is about being new, but the context isn't about novelty. Option D, popularity, doesn't fit because studies are questioning results, not public opinion.
Let's confirm our answer by substituting 'efficacy' back into the sentence. The sentence reads naturally: 'numerous studies have cast doubt on the efficacy of that approach.' This makes perfect sense because efficacy means effectiveness, which directly relates to the evidence about failing to relieve congestion. The answer is A, efficacy.
To summarize our approach: we used context clues to identify that the passage questioned effectiveness. We analyzed each option and found that efficacy, meaning the ability to produce desired results, was the only logical choice. We confirmed this by substituting it back into the sentence. The answer is A, efficacy.