《2025年人教金学典同步练习册同步解析与测评高中英语选择性必修第二册人教版》

Read more about VR from another perspective below, and then choose the best answer to each question.
Virtual reality has been claimed to be a very promising industry. However, this amazing technology has a so-far unsolvable shortcoming: motion sickness (晕动症).
"With modern VR systems, the incidence of motion sickness after only 15 minutes is anywhere from 40% to 70%," Thomas Stoffregen, a researcher at the University of Minnesota, told ABC News. Indeed, some VR applications have a user-sickness rate of nearly 100%!
When caused by VR, this sickness is called cybersickness. Stoffregen says it's probably caused by the body being confused. When you are wearing a VR headset, your body's motion sensors cannot match the information received by your eyes. For example, when we wear a VR headset and ride a virtual roller coaster, we think we are going up and down, but our bodies stay still. It leads us to become confused about our location and balance. Sickness is our bodies' natural response to this confusion.
Adding to this problem, Stoffregen says, "The existing interactive technologies are sexist in their effects." That is to say, women are more likely to feel sick from the VR experience than men. According to a study by Bas Rokers, a scientist at the University of Wisconsin-Madison, one reason could be the headsets. To work properly, VR headsets must match up with your pupil distance (瞳距). Since headsets are designed with a default (预设的) PD that is larger than average, not everyone gets the best experience. Rokers found that when the headset PD was too large, users experienced greater discomfort. Based on his studies, about 90% of women had a shorter PD than the headset default, a much higher percentage than the men tested. Fortunately, most modern headsets now allow the PD to be adjusted slightly, but there's still some more fine-tuning to be done.
ABC News says that cybersickness presents a "serious obstacle (障碍)" to widespread use of VR technology. Once VR overcomes this obstacle, however, it could play a great role in our lives.
1. According to the passage, what is a disadvantage of VR?
A. Wearing a VR headset may cause users to feel sick.
B. Your body may lose balance while using a VR device.
C. VR can cause severe injuries.
D. VR is changing our lives too much.
2. Why do our bodies feel confused when using VR?
A. Our minds and bodies move in opposite directions.
B. Our bodies begin to move with the new virtual reality.
C. We feel we are moving but our bodies are staying still.
D. Our minds can't understand what our eyes see.
3. What does the underlined word "sexist" mean in paragraph 4?
A. Someone who believes women are more attractive.
B. Showing discrimination against one sex.
C. Relating to the idea that men and women are equal.
D. The belief that women are stronger.
4. What does the passage imply about PD?
A. Everyone has the same PD.
B. The standard VR headset PD is much too large for most people.
C. A person's PD can adjust itself to the VR headset.
D. Generally, a man's PD is larger than a woman's.

答案： ACBD