题目内容
【题目】—Gina, I’d like to visit Alan tomorrow. Could you tell me ?
—Sorry, I don’t know his address, either.
A. where does he liveB. where he livesC. where he livedD. where did he live
【答案】B
【解析】
句意：-Gina，我明天想去看望Alan，你能告诉我他住在哪里吗？-对不起，我也不知道他的地址。where does he live他住在哪里，是疑问句；where he lives他住在哪里，陈述句语序；where he lived一般过去时；where did he live疑问句，一般过去时。根据句子结构可知，这里考查宾语从句，从句中应用陈述语序，故排除A和D。could这里表示语气委婉，并非表示过去。根据句意可知，这里说的是客观事实，应用一般现在时，故选B。
【题目】 Beyond 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 eight 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. Sadly there is no storage system for sleep in the brain.
Can we train ourselves to need less sleep?
As a study in 1964, a 17yearold boy named Randy Gardner 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 six 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're 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 limit coffee and avoid caffeine for four to six hours before bedtime.
Does a sense of purpose connect to sleep quality?
A new research suggests a kind of strong connection between purpose in life and sleep. People who have a greater sense of purpose usually have better physical and mental health, which in turn explains their higherquality 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 can_______and cause many mistakes. | |
2 from sleep researchers | How much sleep do we actually need? | Eight hours of sleep a night is necessary for all of us. Sleeping less than six hours a day can_______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. Drink proper amount of coffee at_______. | |
Does a sense of purpose connect to sleep quality? | A sense of purpose in life is closely connected with sleep quality. People with_______of purpose may sleep better. | |
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