题目内容
【题目】There __________ some yogurt and bananas in the fridge. Let's make a banana milk shake.
A.isB.areC.wasD.were
【答案】A
【解析】
句意：有一些酸奶和香蕉在冰箱里。让我们做一个香蕉奶昔。
考查主谓一致。is是，一般现在时，主语是单数；are是，一般现在时，主语是复数；was是，一般过去时，主语是单数；were是，一般过去时，主语是复数。由题干可知本句为there be句型，根据“就近原则”可知be的形式是由离它最近的那个名词来确定的，yogurt为不可数名词，所以be用单数；再由后面的Let's可知句子时态用一般现在时，故答案选A。
【题目】 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 can【1】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. | |
【题目】 Do you like music? Do you often listen to it at loud volumes? You should know that this habit is bad for your hearing, according to the World Health Organization (WHO).
Over 1 billion young people are at risk of hearing loss due to listening to loud noise for long periods of time, WHO said. Listening to music or watching a TV show at loud volumes can harm your hearing.
The United Nations has standards for safe listening. It is not safe to listen to sounds that are louder than 85 decibels for eight hours or 100 dB for 15 minutes. The sound of a busy road is about 85 dB and the sound of a rock concert can be about 100 dB.
Loud noise is harmful to the inner ear. Most of us are born with about 16,000 hair cells in our inner ears. These cells detect sounds. However, listening to loud noise for a long time can make these cells work too hard and cause some of them to die. This is what causes hearing loss.
Some people might think that their music isn’t all that loud. But this can depend on where you are. For example, if you are in a noisy place like the subway, you might turn up your music too loud without realizing it. Later, when you listen to it at the same volume in a quiet place, you might feel uncomfortable.
WHO said the “safe level” for most sound is below 80 decibels for up to 40 hours a week. A level of 80 decibels is nearly the same as the noise of a subway.
Word Bank:
decibel n. (dB 分贝) inner ear 内耳detect vt. 探测
【1】According to the story, WHO suggests that it is NOT safe to _____.
A.listen to music every dayB.watch TV for over an hour
C.listen to loud sounds for a long timeD.go to a rock concert
【2】The sound level of a busy road is about _____.
A.80 dBB.85 dBC.100 dBD.115 Db
【3】Why can listening to loud music cause hearing problems?
A.Because it puts our brains under great pressure.
B.Because it can cause hair cells in the inner ear to die.
C.Because it prevents our ears from resting.
D.Because it allows people to get used to listening to loud sounds.
【4】What does the fifth paragraph tell us?
A.People love to listen to loud music.
B.It’s reasonable to listen to loud music in some places.
C.People are likely to listen to music on the subway.
D.People don’t always realize how loud their music is.