It is not unusual to see your desk-mate yawn(打哈欠) as he complains that he didn’t have a good sleep the night before. Many teens don’t get enough sleep because they have too much homework, which keeps them up at night. Some teens cannot sleep at night even when they want to.

Studies show that during your teenage years, the body’s biological clock is reset, telling you to sleep later at night and wake up later in the morning.

But changes in the body clock aren’t the only reason teens lose sleep. Lots of people have insomnis(失眠) .The most common cause of insomnia is stress. But all sorts of things can lead to insomnia. These include physical discomfort, emotional troubles and even sleeping environment. It’s common for everyone to have insomnia from time to time. But if it lasts for a month or more go and see a doctor.

Some people have a condition that causes stomach acid to move backward towards the chest. This produces the uncomfortable, burning feeling called heartburn. So even if the person doesn’t notice the feeling of heart burn because he is sleeping, he may feel tired the next day.

Most teens have nightmares sometimes. But , if they are frequent, a person’s sleep pattern can be seriously affected. The most common cause of nightmares is emotional problems, such as stress or anxiety. If you have them a lot, It’s a good idea to talk to a doctor.

Doctors encourage teens to make lifestyle changes to develop good sleeping habits. You probably know that coffee can keep you awake, but did you know that playing video games or watching TV does the same?

1．The main idea of the first paragraph is that _____________

   A．there is a problem that teenagers can’t get enough sleep

   B．sleeping problems have different causes

   C．yawning is a good way to get rid of sleep 

   D．teenagers care too much for homework

2．The teenagers’ biological clock____________________-

                                  A．makes teenagers lead to insomnia

  B．is the origin of their insomnia

  C．provide them with plenty of rest at night

  D．is helpful to improve their concentration

3．What does the writer say about nightmares?

   A．It is nothing and shouldn’t be taken seriously.

   B．It can release their stress or anxiety

   C．Emotional problems are the only way to form nightmares.

   D．People will suffer from sleep if nightmares are frequent.

4．Which way can help to get rid of insomnia?

                                  A．Drinking some coffee before going to bed.

   B．Playing video games or watching TV from time to time

   C．Turning to a doctor for help

      D．Eating much medicine for insomnia.

Sometimes life gets a little dull. What used to be fun and different becomes boring. That is the time to look for something new. It is the time for a big idea to get your mind off everyday life. So why not search for extraterrestrial (地球外的) intelligence? Or even better, why not get your computer to do it for you?

Over two million people have joined the Search for Extraterrestrial Intelligence（SETI）project. Based in California, the SETI project analyzes information taken from a giant radio telescope based in South America. Its task is to look for signals from outer space that might prove that life exists on other planets.

Processing this information is far too big a job for one computer. So the SETI project workers divide the work among volunteers who visit their website. Each computer gets some information to work out from the SETI network through the Internet. This process is often known as “meta-computing”.

It is a wonderful thought. You are sleeping, eating a meal or going out with friends. All this time, your computer is searching the stars for signs that might show something is out there trying to get in touch. Volunteers are proud of being involved in the SETI project. It shows that they understand the potential (潜能) of computing. They know that it is more than just a way of working or playing games.

Meta-computing may also be creating intelligence as well as looking for it. This idea is based on the theory that human intelligence is created by the way in which different parts of the brain communicate with each other. As the saying goes, “The whole is more than the sum of its parts.” People who join the SETI project sometimes wonder whether their computer will become part of a huge network that has learned to think for itself.

1.According to the writer, meta-computing may be creating intelligence    .

A．because human beings are intelligent	B．because a computer works as the brain does
C．because of a network of many computers	D．because of the number of computers

2. Which of the following shows the order in which the SETI network works?

A．Radio telescope→SETI website→Volunteers’ computer→SETI base

B．Radio telescope→SETI base→SETI website→Volunteers’ computer

C．SETI base→SETI website→Volunteers’ computers→Radio telescope

D．SETI base→Radio telescope→SETI website→Volunteers’ computers

3. The underlined word “it” in the last paragraph refers to _____ .

A．extra-terrestrial intelligence	B．human intelligence
C．the SETI project	D．meta-computing

4.The passage mainly tells us about _____.      

A．a new way to work on the computer

B．a new way to work and play games

C．a new way to search for life outside the earth

D．a new way to make computers learn to think for itself

 

 

Sometimes life gets a little dull. What used to be fun and different becomes boring. That is the time to look for something new. It is the time for a big idea to get your mind off everyday life. So why not search for extraterrestrial (地球外的) intelligence? Or even better, why not get your computer to do it for you?

       Over two million people have joined the Search for Extraterrestrial Intelligence（SETI）project. Based in California, the SETI project analyzes information taken from a giant radio telescope based in South America. Its task is to look for signals from outer space that might prove that life exists on other planets.

       Processing this information is far too big a job for one computer. So the SETI project workers divide the work among volunteers who visit their website. Each computer gets some information to work out from the SETI network through the Internet. This process is often known as “meta-computing”.

       It is a wonderful thought. You are sleeping, eating a meal or going out with friends. All this time, your computer is searching the stars for signs that might show something is out there trying to get in touch. Volunteers are proud of being involved in the SETI project. It shows that they understand the potential (潜能) of computing. They know that it is more than just a way of working or playing games.

       Meta-computing may also be creating intelligence as well as looking for it. This idea is based on the theory that human intelligence is created by the way in which different parts of the brain communicate with each other. As the saying goes, “The whole is more than the sum of its parts.” People who join the SETI project sometimes wonder whether their computer will become part of a huge network that has learned to think for itself.

1.According to the writer, meta-computing may be creating intelligence        .

A. because human beings are intelligent    B. because a computer works as the brain does

C. because of a network of many computers  D. because of the number of computers

2.Which of the following shows the order in which the SETI network works?

A. Radio telescope→SETI website→Volunteers’ computer→SETI base

B. Radio telescope→SETI base→SETI website→Volunteers’ computer

C. SETI base→SETI website→Volunteers’ computers→Radio telescope

D. SETI base→Radio telescope→SETI website→Volunteers’ computers

3.The underlined word “it” in the last paragraph refers to        .

A. extra-terrestrial intelligence     B. human intelligence 

C. the SETI projectD. meta-computing

4.The passage mainly tells us about        .

A. a new way to work on the computer

B. a new way to work and play games

C. a new way to search for life outside the earth   

D. a new way to make life interesting and different

 

 

Sometimes life gets a little dull．What used to be fun and different becomes boring．That is the

time to look for something new．It is the time for a big idea to get your mind off everyday life．So why not search for extraterrestrial （地球外的） intelligence? Or even better, why not get your computer to do it for you?

Over two million people have joined the Search for Extraterrestrial Intelligence（SETI）

project．Based in California, the SETI project analyzes information taken from a giant radio telescope based in South America．Its task is to look for signals from outer space that might prove that life exists on other planets．

Processing this information is far too big a job for one computer．So the SETI project workers

divide the work among volunteers who visit their website．Each computer gets some information to work out from the SETI network through the Internet．This process is often known as “meta-computing”．

It is a wonderful thought．You are sleeping, eating a meal or going out with friends．All this

time, your computer is searching the stars for signs that might show something is out there trying to get in touch．Volunteers are proud of being involved in the SETI project．It shows that they understand the potential of computing．They know that it is more than just a way of working or playing games．

Meta-computing may also be creating intelligence as well as looking for it．This idea is based

on the theory that human intelligence is created by the way in which different parts of the brain communicate with each other．As the saying goes, “The whole is more than the sum of its parts．” People who join the SETI project sometimes wonder whether their computer will become part of a huge network that has learned to think for itself．

1.According to the writer, meta-computing may be creating intelligence __________．

     A．because human beings are intelligent                                  

       B．because a computer works as the brain does

     C．because of a network of many computers   

       D．because of the number of computers

2.Which of the following shows the order in which the SETI network works?

     A．Radio telescope→SETI website→Volunteers’ computers→SETI base

     B．Radio telescope→SETI base→SETI website→Volunteers’ computers

     C．SETI base→SETI website→Volunteers’ computers→Radio telescope

     D．SETI base→Radio telescope→SETI website→Volunteers’ computers

3.The underlined word “it” in the last paragraph refers to________．

     A．extra-terrestrial intelligence                B．human intelligence 

       C．the SETI project                       D．meta-computing

4.The passage mainly tells us about __________．

     A．a new way to work on the computer   

       B．a new way to work and play games

     C．a new way to search for life outside the earth                     

       D．a new way to make life interesting and different．