[单项选择]—We have finished watering all the flowers, Miss Wang.
—______! Boys and girls, let’s have a drink.
A. Good luck
B. Well done
C. Good idea

[单项选择]Like flowers that have been waiting all winter to blossom, tourists are eager to burst forth with their cameras.
A. survive
B. breeze
C. bloom
D. revive

[单项选择]

All we have a clock located inside our brains. Similar to your bedside alarm clock, your internal clock runs on a 24-hour cycle. This cycle, called a circadian rhythm, helps control when you wake, when you eat and when you sleep.
Somewhere around puberty, something happens in the timing of the biological clock. The clock pushes forward, so adolescents and teenagers are unable to fall asleep as early as they used to. When your mother tells you it’s time for bed, your body may be pushing you to stay up for several hours more. And the light coming from your computer screen or TV could be pushing you to stay up even later.
This shift is natural for teenagers. But staying up very late and sleeping late can get your body’s clock out of sync with the cycle of light and dark. It can also make it hard to get out of bed in the morning and may bring other problems, too. Teenagers are put
A. it has a cycle of 24 hours
B. it controls when we wake, when we eat and when we sleep
C. it can alarm any time during 24 hours
D. it is a cycle also called circadian rhythm

[填空题]By which college have Miss Wang been accepted It is the ______.

[单项选择]

All we have a clock located inside our brains. Similar to your bedside alarm clock, your internal clock runs on a 24-hour cycle. This cycle, called a circadian rhythm, helps control when you wake, when you eat and when you sleep.
Somewhere around puberty, something happens in the timing of the biological clock. The clock pushes forward, so adolescents and teenagers are unable to fall asleep as early as they used to. When your mother tells you it’s time for bed, your body may be pushing you to stay up for several hours more. And the light coming from your computer screen or TV could be pushing you to stay up even later.
This shift is natural for teenagers. But staying up very late and sleeping late can get your body’s clock out of sync with the cycle of light and dark. It can also make it hard to get out of bed in the morning and may bring other problems, too. Teenagers are put in a kind of a gray cloud when they don’t get enough sleep, says Mary
A. it controls when we wake, when we eat and when we sleep
B. it has a cycle of 24 hours
C. it is a cycle also called circadian rhythm
D. it can alarm any time during 24 hours

[填空题] Pain
All of us have felt pain. we have cut ourselves. We have been burned. Or we have had headaches. Some of us suffer pain rarely. (46)
Pain can take complete control of our body and mind, making it impossible to move and even to think. Yet we need pain. Without It, we would not know if we have hurt ourselves. It is our body’s warning system. (47)
Pain is the most common reason we go to a doctor. It is the most common reason we take medicines. Until recently, however, most doctors knew of only a few drugs that stopped some pains. (48) But new knowledge about the process of pain Is helping them to control pain batter.
Scientists have learned that the sense of pain Is made up of both chemical and electrical signals. (49) Scientists also have learned that the nervous system sends two different kinds of pain messages to the brain: one very fast, the other slow.
The f

[填空题]Pain
All of us have felt pain. We have cut ourselves. We have been burned. Or we have had headaches. Some of us suffer pain rarely. (46)
Pain can take complete control of our body and mind, making it impossible to move and even to think. Yet we need pain. Without it, we would not know if we have hurt ourselves. It is our body’s warning system. (47)
Pain is the most common reason we go to a doctor. It is the most common reason we take medicines. Until recently, however, most doctors knew of only a few drugs that stopped some pains. (48) But new knowledge about the process of pain is helping them to control pain better.
Scientists have learned that the sense of pain is made up of both chemical and electrical signals. (49) Scientists also have learned that the nervous system sends two different kinds of pain messages to the brain: one very fast, the other slow.
The first message is the warning signal. It moves