DSAT R&W Practice Question-Craft and Structure-Text Structure and Purpose-Medium
DSAT R&W Practice Question-Craft and Structure-Text Structure and Purpose-Medium
DSAT R&W Practice Question-Craft and Structure-Text Structure and Purpose-Medium is part of Craft and Structure : This section evaluates skills in understanding advanced academic vocabulary words from the context they are used in, analyzing an author’s rhetorical (persuasive writing) techniques and purpose, and synthesizing key ideas by making connections between multiple related texts on a topic.
Weightage : 20%
Subtopic: Cross-Text Connections
Question
Archeological excavation of Market Street Chinatown, a nineteenth-century Chinese American community in San Jose, California, provided the first evidence that Asian food products were imported to the United States in the 1800s: bones from a freshwater fish species native to Southeast Asia. Jinshanzhuang—Hong Kong–based import/export firms—likely coordinated the fishʼs transport from Chinese-operated fisheries in Vietnam and Malaysia to North American markets. This route reveals the (often overlooked) multinational dimensions of the trade networks linking Chinese diaspora communities.
Which choice best describes the function of the underlined sentence in the text as a whole?
A. It explains why efforts to determine the country of origin of the items mentioned in the previous sentence remain inconclusive.
B. It provides information that helps support a claim about a discoveryʼs significance that is presented in the following sentence.
C. It traces the steps that were taken to locate and recover the objects that are described in the previous sentence.
D. It outlines a hypothesis that additional evidence discussed in the following sentence casts some doubt on.
▶️Answer/Explanation
Ans. B
Correct Answer: B
Rationale
Choice B is the best answer. The underlined sentence provides information about import/export rms, showing how Chinese communities across the world were connected by trade routes.
Choice A is incorrect. The underlined sentence never suggests that the countries of origin of the fish are in question—in fact, it tells us exactly where they came from. Choice C is incorrect. The passage never describes
the steps taken to discover the fish bones described in the previous sentence. Choice D is incorrect. The underlined sentence doesn’t outline a hypothesis but instead provides evidence. And the following sentence
agrees with the underlined sentence, so we could eliminate this choice just for saying that the following sentence “casts some doubt on” the underlined one—partly wrong is all wrong.
Question
Using NASAʼs powerful James Webb Space Telescope (JWST), Mercedes López-Morales and colleagues measured the wavelengths of light traveling through the atmosphere of WASP-39b, an exoplanet, or planet
outside our solar system. Different molecules absorb different wavelengths of light, and the wavelength measurements showed the presence of carbon dioxide (CO₂) in WASP-39bʼs atmosphere. This finding not only
offers the first decisive evidence of CO₂ in the atmosphere of an exoplanet but also illustrates the potential for future scientific breakthroughs held by the JWST.
Which choice best describes the overall structure of the text?
A. It discusses a method used by some researchers, then states why an alternative method is superior to it.
B. It describes how researchers made a scientific discovery, then explains the importance of that discovery.
C. It outlines the steps taken in a scientific study, then presents a hypothesis based on that study.
D. It examines how a group of scientists reached a conclusion, then shows how other scientists have challenged that conclusion.
▶️Answer/Explanation
Ans. B
Correct Answer: B
Rationale
Choice B is the best answer. The text begins by describing how the researchers used the JWST to detect CO₂ in WASP-39b’s atmosphere. Then the text discusses the significance of this finding, both as the first evidence of
CO₂ in an exoplanet’s atmosphere and as an illustration of the JWST’s potential for making new discoveries in general.
Choice A is incorrect. The text doesn’t compare two different methods, but rather focuses on one study that used the JWST. Choice C is incorrect. The text doesn’t present a hypothesis, but rather reports on the findings of a study. Choice D is incorrect. The text doesn’t mention any scientists challenging the conclusion reached by López-Morales and colleagues.