网址：http://m.1010jiajiao.com/timu3_id_3035146[举报]
If you are having trouble falling asleep, you are in good company. About 65% of Americans said they have sleeping problems a few nights each week, according to a recent study by the National Sleep Foundation. Sleeping too little can lead to a higher risk of becoming fat and getting depressed(沮丧的). But before you go to a doctor for advice, you’d better examine your sleeping habits one more time. Some of your favorite evening habits may have something to do with the sleeping problems.
1. Setting a Bright Alarm Clock.
The light of your bright alarm clock can prevent you from falling asleep. You can make your room as dark as possible. Cover the bright numbers with a book or consider buying a small travel clock. Your cellphone alarm may also do the trick.
2. Counting Sheep
When you just can’t fall asleep, it’s useless to stay in bed to count sheep. If you’ve been trying to fall asleep for more than 30 minutes, the National Sleep Foundation suggests you get up to do some reading or watch TV for a while. Such activities will make you sleepy. Before you know it, you’ll be going back to bed really tired.
3. Exercising Late at Night
Daytime workouts(锻炼) will keep you full of energy for hours. That’s why you don’t want to exercise within three hours of hitting the sack. Fierce(剧烈的)physical activity raise your body temperature and pumps your energy level—both are bad for a good night’s sleep.
【小题1】 What can we learn from the first sentence of the passage?
| A．It’s not good to fail to fall asleep at night. |
| B．People in a good company often have sleeping problems. |
| C．There are many people who have sleeping problems. |
| D．You should find someone to talk to if you can’t fall asleep. |
| A．going back home | B．going to bed |
| C．going to the gym | D．falling asleep |
| A．The bad results of getting too little sleep. |
| B．Why the bright alarm clock keeps you awake. |
| C．What to do if you can’t fall asleep after 30 minutes. |
| D．Why watching TV and reading books make people sleepy. |
| A．why so many people can’t sleep well at night |
| B．how to enjoy a good night’s sleep |
| C．that sleeping problems are troubling more and more people |
| D．that people may solve their sleeping problems by some habits |
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
No one can believe that the over 6 300-kilometer long Great Wall might disappear some day.Believe it or not,the Great Wall is being destroyed by people.Less than 20 percent of the Great Wall built in the Ming Dynasty is still perfect,but about 80 percent is in danger.The Great Wall can be called “great” mostly because of its amazing length.But we should realize that the length was made up of one brick at a time.If we do nothing to save the Great Wall,it will become a series of separate wasteland rather than a historic site.
The Great Wall is actually a series of walls built and rebuilt by different dynasties over the past 2 000 years.It began in the rule of China’s first emperor,Qin Shihuang of the Qin Dynasty (221 BC～206 BC),and lasted into the Ming Dynasty.The parts built before the Ming Dynasty have nearly disappeared.People are familiar with sections such as Badaling in Beijing and Jiayuguan Pass in Gansu because they have been open to tourists for many years.But those sections far away from the public eyes have been almost forgotten.
Few local people knew the 3-meter-high walls made of earth and stones beside them are part of the Great Wall.The lack of knowledge is considered as one of the main reasons behind human.
The bricks on the Great Wall are carried off by countryside people to build their houses,sheep corral(畜栏) and pigsties(猪圈).Some were taken away to build roads.Bricks carved with people’s names are put away as remembrance.Rubbish is spread over the battlements(城垛).The bricks can be sold for 15 yuan per tractor load.Those who destroyed and are destroying the Great Wall know its name,but are not clear about its cultural meaning.It will take a long time to let them know this.The local farmers not only carried off the body of the Wall but dug out the entire base.
It is necessary to protect the Great Wall.First of all,the officials should be aware of theimportance of the Great Wall.Young Chinese should know more about the nation’s great civilization (文明)and learn to love it.
1.The main reason for which the Great Wall can be called“great”is__________.
A.it was made by brick B.it was very wide
C.it was very long D.it had a long history
2.Why does the author say the Great Wall might disappear?
A.It is useless from now on. B.It will be replaced by a new one.
C.Some parts of it are being destroyed. D.It’s too old to be used again.
3.The underlined part “those sections far away from the public eyes” refers to the parts of the Great Wall__________.
A.that are too difficult to understand B.nobody can watch
C.that are too far to been seen D.that are not well known to the public
4.What’s the main reason of the Great Wall’s being destroyed?
A.The local people are short of culture knowledge.
B.The local people need bricks and stones to build houses.
C.The local people think that the Great Wall is not important.
D.The local people are against the government.
查看习题详情和答案>>
If you are having trouble falling asleep, you are in good company. About 65% of Americans said they have sleeping problems a few nights each week, according to a recent study by the National Sleep Foundation. Sleeping too little can lead to a higher risk of becoming fat and getting depressed(沮丧的). But before you go to a doctor for advice, you’d better examine your sleeping habits one more time. Some of your favorite evening habits may have something to do with the sleeping problems.
1. Setting a Bright Alarm Clock.
The light of your bright alarm clock can prevent you from falling asleep. You can make your room as dark as possible. Cover the bright numbers with a book or consider buying a small travel clock. Your cellphone alarm may also do the trick.
2. Counting Sheep
When you just can’t fall asleep, it’s useless to stay in bed to count sheep. If you’ve been trying to fall asleep for more than 30 minutes, the National Sleep Foundation suggests you get up to do some reading or watch TV for a while. Such activities will make you sleepy. Before you know it, you’ll be going back to bed really tired.
3. Exercising Late at Night
Daytime workouts(锻炼) will keep you full of energy for hours. That’s why you don’t want to exercise within three hours of hitting the sack. Fierce(剧烈的)physical activity raise your body temperature and pumps your energy level—both are bad for a good night’s sleep.
1. What can we learn from the first sentence of the passage?
A．It’s not good to fail to fall asleep at night.
B．People in a good company often have sleeping problems.
C．There are many people who have sleeping problems.
D．You should find someone to talk to if you can’t fall asleep.
2.The underlined part “hitting the sack” in the last paragraph means “______”.
A．going back home B．going to bed
C．going to the gym D．falling asleep
3.Which of the following is NOT mentioned in the passage?
A．The bad results of getting too little sleep.
B．Why the bright alarm clock keeps you awake.
C．What to do if you can’t fall asleep after 30 minutes.
D．Why watching TV and reading books make people sleepy.
4.By writing the passage, the writer mainly wants to tell us _______.
A．why so many people can’t sleep well at night
B．how to enjoy a good night’s sleep
C．that sleeping problems are troubling more and more people
D．that people may solve their sleeping problems by some habits
查看习题详情和答案>>
Direction：Read the following passage and answer the questions according to the imfomation you get in the passage and the required words limit．
Agricultural scientists in the United States have put a copy of a human gene into pigs, sheep and rabbits．They report that the gene seems to be working in some of the animals．The gene that the scientists are using controls the production of human growth hormone(荷尔蒙), a chemical necessary for growth．
They are using the human gene because it has been more closely studied than any other growth gene．The scientists hope their work will someday result in food animals that grow faster and larger or produce more milk or eggs．The research is being done by scientists at the University of Pennsylvania, the University of Washington and the United States Department of Agriculture．The scientists put copies of human growth hormone into the fertilized(受精的)eggs of the female animals．When baby animals were born from the eggs, the scientists looked for evidence that the human gene had become part of the animal’s genetic material．They examined almost 200 baby pigs and found the gene in 20 of them．They found it in 28 of more than 200 rabbits, but it was in only one of 73 baby sheep．The scientists said they found the human growth chemical produced by the gene in some of the animals．
It is too soon to know if the animals will pass the human growth gene into their young, proving that the gene has become part of their genetic material．Similar research with mice two years ago produced a new kind of mouse that is two times larger than normal．The scientists hope the same thing will happen with farm animals．They say their research will permit other gene transplants that can give animals defense against diseases, or let them live in very hot or very cold places．American farmers already use chemical hormones to increase the size of cattle and the amount of milk they produce．But they have to put the hormones into the cows．If the gene transplants are fully successful, the cow’s body will produce growth hormone．
1．How many kinds of animals have scientists put copies of human gene into?(no more than 1 word)
________________
2．Why do the scientists do such a research?(no more than 15 words)
________________
3．How does the gene work in the growth of animals?(no more than 8 words)
________________
4．What can we learn about the research with mice?(no more than 13 words)
________________