what is the main idea of the passage on daylight savings time

HESI A2

HESI A2 Reading Comprehension Practice Test

1. What is the main idea of the passage on Daylight Savings Time?

A. Daylight Savings Time helps save energy.
B. Daylight Savings Time is unnecessary and outdated.
C. Daylight Savings Time is a law to conserve energy during wars.
D. Daylight Savings Time was first implemented in Germany.

Correct answer: A

Rationale: The correct answer is A: "Daylight Savings Time helps save energy." The passage explains how Daylight Savings Time is implemented to take advantage of more daylight, which results in energy savings. By adjusting clocks ahead in spring, people can make use of additional daylight in the evenings, leading to reduced energy consumption. This measure was introduced to address energy crises and has been shown to save significant amounts of energy. Choice B is incorrect as the passage does not portray Daylight Savings Time as unnecessary or outdated; instead, it highlights its benefits. Choice C is partially correct but not the main idea of the passage, as saving energy is the primary focus. Choice D is mentioned in the passage but is not the main idea; the main idea is about the purpose and benefits of Daylight Savings Time.

2. What can the reader conclude from this passage about ponds and lakes?

A. They are examples of groundwater reservoirs.
B. They are part of the evaporation process.
C. They are formed by runoff.
D. They are formed by condensation.

Correct answer: A

Rationale: The correct answer is A: 'They are examples of groundwater reservoirs.' The passage mentions that runoff collects in groundwater reservoirs, among other places. Ponds and lakes are typically reservoirs of groundwater, as stated in the passage. Choice B is incorrect because ponds and lakes are not directly mentioned as part of the evaporation process. Choice C is incorrect as ponds and lakes are not stated to be formed by runoff. Choice D is incorrect as ponds and lakes are not formed by condensation.

3. What was the author's motive for writing the paragraph?

A. Encourage overeating.
B. Criticize healthy eating habits.
C. Urge self-control.
D. Promote exercise.

Correct answer: C

Rationale: The author's motive for writing the paragraph is to urge self-control. The text emphasizes the importance of moderation in food and drink consumption to avoid serious physical and mental health problems. It highlights the negative consequences of overeating and alcohol abuse, pointing out the strain on the heart, diabetes risk, shortened lifespan, and emotional eating habits. By discussing the issues related to overconsumption, the author aims to promote self-control and responsible habits. Choices A, B, and D are incorrect because the paragraph focuses on advocating moderation and self-discipline rather than encouraging overeating, criticizing healthy eating habits, or promoting exercise.

4. Based on this passage, what can the reader infer about the advice physicians will give their pregnant patients about coffee consumption?

A. Almost all of them will advise women to stop drinking any caffeine until after the baby is born.
B. The majority will ignore the study altogether and continue to advise caffeine in moderation as before.
C. All of them will demand additional research be done before they change what they tell their patients.
D. Some will continue to make their normal recommendations about caffeine, while others will be more cautious than before.

Correct answer: D

Rationale: The passage implies that there is variability in physician responses to the study about caffeine consumption. Some doctors may continue their standard recommendations, while others might advise more caution based on the new evidence. Therefore, option D reflects this variability in professional opinions and is the correct inference.

5. What is the meaning of the word 'enlist' as it is used in the second paragraph?

A. call into service
B. write down
C. send away
D. put across

Correct answer: A

Rationale: In the context of the immune system, 'enlist' means to call into service. Immune cells recruit other cells to fight infection by producing chemicals that regulate their growth, behavior, and direct new recruits to trouble spots. This process is essential for the immune system's defense mechanism. The other choices are incorrect: 'write down' and 'put across' do not capture the action of mobilizing immune cells, and 'send away' is opposite in meaning to what is happening in the immune response.