(1) The dream of being instantly transported from one point on the globe to another has thus far been confined to the realm of science fiction. (2) However, thanks to technological advances, researchers are low closer than ever to making that dream- or at least a version of it- a reality
(3) High-tech teams around the world are working on projects designed to enhance people's "Telepresence"-their sense of physically being in a location even when they are actually thousands of miles away. (4) Users of this developing technology can "visit" faraway destinations embodied in sophisticated robots. (5) The visitors wear goggles and suits with sensors that allow them to see and feel in real time what their robot avatars are experiencing. (6) Microphones, speakers, and headphones allow two-way communication with the people at the other end, providing the visitors with a true sense of physically being there
(7) Cruder forms of telepresence robots are already being used in some American offices, (8) Rather than commuting long distances, they can use their home computers to maneuver simple wheeled robots around the head office. (9) These robots are equipped with cameras and video screens. (10) The robots allow the home-bound workers to attend meetings and interact more personally with their coworkers
(11) A host of ethical issues must still be overcome before these technologies become widespread including concerns over whether telepresence robots might infringe on the privacy of users. (12) But the day when we can physically experience a place on the other side of the world without actually leaving home may not be that far off.
In sentence 8 (reproduced below), which of the following best replaces 'they'? Rather than commuting long distances, they can use their home computers to maneuver simple wheeled robots around the head office
- A. high-tech engineers
- B. remote workers
- C. sophisticated robots
- D. employers
Correct Answer & Rationale
Correct Answer: B
Option B, "remote workers," accurately identifies the subject who would benefit from using home computers to control robots instead of commuting. This term directly relates to individuals who work from home, aligning with the context of the sentence. Option A, "high-tech engineers," is too specific and does not encompass all individuals who might work remotely. Option C, "sophisticated robots," incorrectly refers to machines rather than people, making it irrelevant in this context. Option D, "employers," shifts the focus from the workers to those who manage them, which does not fit the intended meaning of the sentence.
Option B, "remote workers," accurately identifies the subject who would benefit from using home computers to control robots instead of commuting. This term directly relates to individuals who work from home, aligning with the context of the sentence. Option A, "high-tech engineers," is too specific and does not encompass all individuals who might work remotely. Option C, "sophisticated robots," incorrectly refers to machines rather than people, making it irrelevant in this context. Option D, "employers," shifts the focus from the workers to those who manage them, which does not fit the intended meaning of the sentence.
Other Related Questions
In context, which of the following is the best way to revise and combine sentences 9 and 10 (reproduced below)? These robots are equipped with cameras and video screens. The robots allow the home-bound workers to attend meetings and interact more personally with their coworkers.
- A. These robots, while being equipped with cameras and video screens, allow the home-bound workers to attend meetings, interact more personally with their coworkers
- B. These robots are equipped with cameras and video screens, moreover, they allow the home-bound workers to attend meetings and interact more personally with their coworkers.
- C. Equipped with cameras and video screens, these robots allow the home-bound workers to attend meetings and interact more personally with their coworkers.
- D. In order to allow the workers to attend meetings and interact more personally with their coworkers, these robots are equipped with cameras and video screens
Correct Answer & Rationale
Correct Answer: C
Option C effectively combines the two sentences by starting with a participial phrase, "Equipped with cameras and video screens," which succinctly conveys essential information about the robots while maintaining clarity. This structure emphasizes the robots' capabilities and their purpose in a streamlined manner. Option A introduces unnecessary complexity with "while being," making the sentence less direct and harder to follow. Option B uses "moreover," which is inappropriate for connecting the two ideas and creates a run-on sentence that disrupts the flow. Option D alters the focus by suggesting that the robots are equipped solely for the purpose of allowing interaction, which misrepresents the original intent and adds unnecessary wording.
Option C effectively combines the two sentences by starting with a participial phrase, "Equipped with cameras and video screens," which succinctly conveys essential information about the robots while maintaining clarity. This structure emphasizes the robots' capabilities and their purpose in a streamlined manner. Option A introduces unnecessary complexity with "while being," making the sentence less direct and harder to follow. Option B uses "moreover," which is inappropriate for connecting the two ideas and creates a run-on sentence that disrupts the flow. Option D alters the focus by suggesting that the robots are equipped solely for the purpose of allowing interaction, which misrepresents the original intent and adds unnecessary wording.
We can infer that the reason the glass tubes were bent was that
- A. the Paris Exposition display was considered unsatisfactory
- B. straight tubes are not as bright as bent ones
- C. it is difficult to form letters with straight tubes
- D. neon gas burns out quickly in straight tubes
Correct Answer & Rationale
Correct Answer: C
The bending of glass tubes is primarily linked to the ability to form letters and shapes, making option C the most logical choice. Bent tubes allow for the creation of recognizable letters, essential for signage. Option A suggests the display's quality influenced the design, but it lacks direct relevance to the functionality of the tubes. Option B implies that brightness is affected by the shape of the tubes, which is misleading; brightness is more about gas type and tube diameter than shape. Option D inaccurately claims that neon gas burns out quickly in straight tubes; gas longevity is not dependent on tube shape but rather on electrical conditions and gas quality.
The bending of glass tubes is primarily linked to the ability to form letters and shapes, making option C the most logical choice. Bent tubes allow for the creation of recognizable letters, essential for signage. Option A suggests the display's quality influenced the design, but it lacks direct relevance to the functionality of the tubes. Option B implies that brightness is affected by the shape of the tubes, which is misleading; brightness is more about gas type and tube diameter than shape. Option D inaccurately claims that neon gas burns out quickly in straight tubes; gas longevity is not dependent on tube shape but rather on electrical conditions and gas quality.
Why is the phrase "Amerigo the discoverer" (sentence 2) placed in quotation marks?
- A. To show that it is important
- B. To indicate that it is a direct quotation from a book
- C. To question whether Vespucci really discovered America
- D. To highlight the differences between the map and the book
Correct Answer & Rationale
Correct Answer: B
The phrase "Amerigo the discoverer" is placed in quotation marks to indicate that it is a direct quotation from a book, reflecting the specific wording used by the author. This helps readers recognize that the phrase is not the writer's own interpretation but a citation from another source. Option A is incorrect because quotation marks do not inherently signify importance. Option C misinterprets the purpose of the quotation marks, as they do not imply skepticism about Vespucci's discovery. Option D is also inaccurate, as the quotation marks focus on the phrase itself rather than any differences between a map and a book.
The phrase "Amerigo the discoverer" is placed in quotation marks to indicate that it is a direct quotation from a book, reflecting the specific wording used by the author. This helps readers recognize that the phrase is not the writer's own interpretation but a citation from another source. Option A is incorrect because quotation marks do not inherently signify importance. Option C misinterprets the purpose of the quotation marks, as they do not imply skepticism about Vespucci's discovery. Option D is also inaccurate, as the quotation marks focus on the phrase itself rather than any differences between a map and a book.
The term "heliotropic" (sentence 5) most probably means
- A. having a flexible pulvinus
- B. flowering in the bud stage
- C. having brightly-colored flowers
- D. turning toward the Sun
Correct Answer & Rationale
Correct Answer: D
"Heliotropic" refers to the phenomenon where plants or flowers turn towards the Sun to maximize light exposure, which is essential for photosynthesis. This behavior is crucial for their growth and survival. Option A, "having a flexible pulvinus," describes a specific structural feature of some plants but does not capture the essence of heliotropism. Option B, "flowering in the bud stage," pertains to a developmental phase unrelated to sunlight orientation. Option C, "having brightly-colored flowers," focuses on visual attributes rather than movement towards light. Thus, only option D accurately reflects the meaning of heliotropic.
"Heliotropic" refers to the phenomenon where plants or flowers turn towards the Sun to maximize light exposure, which is essential for photosynthesis. This behavior is crucial for their growth and survival. Option A, "having a flexible pulvinus," describes a specific structural feature of some plants but does not capture the essence of heliotropism. Option B, "flowering in the bud stage," pertains to a developmental phase unrelated to sunlight orientation. Option C, "having brightly-colored flowers," focuses on visual attributes rather than movement towards light. Thus, only option D accurately reflects the meaning of heliotropic.