题目内容
Maria is _____ American girl. She can play _____ chess very well, but she can’t play _____ trumpet.
A.an; the; the B.a; / ; the C.an; / ; the D.a; the; /
阅读快车系列答案More than its influence on health, not getting enough sleep can lead to car accidents or other mistakes. Here are what sleep researchers have found about how to sleep.
How much sleep do we actually need?
It is known that all of us naturally need no less than 8 hours of sleep per night. When we sleep below six hours per 24, we’re at an increased risk of health problems. Some of us think we can make up any of those hours lost during the week on the weekends. Suddenly there is no storage system for sleep in the brain.
Can we train ourselves to need less sleep?
As a study in 1964, a 17- year- old boy named Randy Gardener stayed awake for 264 hours. How many people could do anything close to that without dying?
When you are reading this, you might say you usually get 6 hours of sleep and feel just fine . Sleep experts often compare people without enough sleep to drunk drivers: They don't get behind the wheel thinking .They are probably going to kill someone.
Can we drink coffee instead of sleeping?
Coffee can keep us awake. Remember, too much coffee may throw off our sleep and energy cycles. So avoid caffeine for 4 to 6 hours before bedtime.
Does a sense of purpose connect with sleep quality?
A new research suggests a kind of strong connection between purpose in life and sleep. People who have a great sense of purpose usually have better physical and mental health, which in turn explains their higher quality sleep. Perhaps developing a sense of purpose in life could be as useful at improving sleep as the healthy habits above.
How to sleep. | ||
Introduction. | Not getting enough sleep can1.and cause many mistakes. | |
2.from sleep researchers. | How much sleep do we actually need? | ◆8 hours of sleep a night is necessary for all of us. ◆Sleeping less than 6 hours a day can 3.the risk of health problems. ◆It is impossible to make up the lost sleeping hours during the workweek. |
Can we train ourselves to need less sleep? | ◆People without enough sleep might think that they were fine but weren’t doing well at all. | |
Can we drink coffee instead of sleeping? | ◆Using coffee instead of sleeping might lead to sleep problems. ◆4. coffee before bedtime. | |
Does a sense of influence sleep quality. | ◆A sense of purpose in life is closely 5.a sleep quality. ◆People with a greater sense of purpose may sleep better. |