Question 4 Explanation_Digital SAT Reading and Writing Practice Test 1

Mark for Review

Which choice best describes the overall structure of the text?

It describes an invention and then gives specific reasons for its continued use.

It describes a hypothesis concerning a compound and then contradicts that hypothesis.

It introduces a product and then discusses both the uses and the dangers associated with that product.

It explains the initial purpose of an invention and then questions the ethics behind that invention.

Correct Answer: C

Your Answer:

Explanation

This is a Purpose question, as it asks for the overall structure of the text. Read the text and highlight what can help understand the order of ideas within the text. The first sentence introduces Scheele's green and notes that it is dangerous to humans. The second sentence states that Scheele's green was Used in wallpaper and candles but stopped being used when the public gained knowledge of how toxic its vapors were. The last sentence discusses Scheele's green used as an insecticide and a food dye. A good overall structure to enter into the annotation box would be "Scheele's green-the good and the bad."

(A) is wrong because the text never gives any specific reasons as to why Scheele's green kept getting used, just what it was used for.
(B) is wrong because the text never mentions any hypothesis.
(C) is correct because it's consistent with the highlighting and annotation.
(D) is wrong because it's Half-Right: the text implies that Scheele's green is first Used for wallpaper and candles, but the text does not later question the ethics behind the invention of Scheele's green.