divide |
分ける、分割する
|
voluntary |
自発的な
|
paralyze |
まひさせる
|
prey |
えじき
|
come at a price |
高くつく、代償が伴う
|
After seven to nine hours of sleep, we get up. Then, we get tired once again after 15 to 17 hours. We divide our slumber between periods of deep-wave sleep and rapid eye movement (REM) sleep. REM sleep is a period when our brain is as active as when we are awake, but our voluntary muscles become paralyzed.
Animals have the same sleep behavior as well. Dolphins sleep with half of their brains awake in order to be aware of their surroundings underwater. When mallard ducks sleep in line, the ones at the start and end of the queue keep half of their brains awake and one of their eyes open to guard against predators.
This, however, comes at a price. Animals must lie still when asleep, making them easy prey. Sleep researcher Allan Rechtschaffen said, “If sleep doesn’t serve an absolutely vital function, it is the greatest mistake evolution ever made.”
1. | What is REM sleep? |
Answer: | |
2. | How do dolphins sleep? |
Answer: | |
3. | How do animals become easy prey while sleeping? |
Answer: | |
4. | What did Allan Rechtschaffen say about sleep? |
Answer: |
divide | |
voluntary | |
come at a price |
Sample Question:
|
Studying English is important. Do you agree with that? |
Sample Answer:
|
I agree. In my opinion, English is not only a school subject but a language that can be used for communication. To have a good future, we need to study English so we can have more opportunities to achieve success. |
Your answer should start with “I agree/ I disagree”.
I will check if your sentences are complete and if the grammar is correct.
1. | People must sleep for more than eight hours a day. Do you agree with this? | |
Answer: | I agree / I disagree | |
2. | Some argue that students cannot study effectively if they do not get enough sleep. Do you agree with this? | |
Answer: | I agree / I disagree |
I will check if your sentences are complete and if the grammar is correct.
講師は文法と完全な文章であるかを確認します。
1. | What are the health benefits of sleep? |
Answer: | |
2. | In order to get enough sleep, what do you do? |
Answer: |