If you see someone drowning, speed is very important. Once you get him out of the water, if he isn't breathing, you have four minutes before his brain is completely destroyed. Support his neck, move his head back and press his chin upwards. This stops the tongue blocking the airway in the throat and is sometimes enough to get him breathing again. If that doesn't work, start mouth-to-mouth breathing. Press his nostrils (the two holes at the end of your nose, through which you breathe and smell things) together with your fingers. Open your mouth and take a deep breath. Blow into his lungs until his chest rises, then remove your mouth and watch his chest fall. Repeat twelve times a minute. Keep doing until professional help arrives.

    To bring a child back to life, keep your lips around his mouth and gently blow into his mouth. Give the first four breaths as quickly as possible to fill the blood with oxygen. If, in spite of your efforts, he starts turning a blue-grey colour, and you can feel no pulse, then pressing is the last chance of saving his life.

    With arms straight, rock forwards, pressing down on the lower half of the breastbone. Don't be too hard or you may break a rib. Check how effective you are by seeing if his colour improves or his pulse becomes independent to your chest pressing. If this happens, stop the pressing. Otherwise continue until rescue arrives.

If you want to save someone drowning, you __________.

A. have to pull off his clothes first .

B. should try to get him out of water as quickly as possible.

C. should first make out who he is.

D. ought to throw a life coat to him first .

Once a person stops breathing, it means ___________.

A. you have no more than 4 minutes to bring him to life again .

B. his brain is completely damaged .

C. he has passed away .

D. there is no way to save his life .

To press his chin upwards is a way to _____________.

   A. keep the tongue from blocking the airway in the throat .

   B. prevent the tongue from stopping the airway in the throat .

   C. wipe the tongue out of the throat .

   D. see if he can possibly be saved .

If the drowning boy has no pulse,_____________.

A. press his chin upwards is enough to get him breathing .

B. blow air into his mouth is sure to save his life .

C. press his nostrils together with your fingers can work .

D. press is the last chance of saving his life .

Which of the following statement is true?

A. Don’t stop pressing his chest, if the drowning man starts breathing again.

B. If you see someone drowning, you must give him mouth-to-mouth breathing.

C. If a man does not breathe for four minutes, his brain will be completely destroyed.

D. When pressing, you can do it as hard as you can.

If you see someone drowning, speed is very important. Once you get him out of the water, if he isn't breathing, you have four minutes before his brain is completely destroyed. Support his neck, move his head back and press his chin upwards. This stops the tongue blocking the airway in the throat and is sometimes enough to get him breathing again. If that doesn't work, start mouth-to-mouth breathing. Press his nostrils (the two holes at the end of your nose, through which you breathe and smell things) together with your fingers. Open your mouth and take a deep breath. Blow into his lungs until his chest rises, then remove your mouth and watch his chest fall. Repeat twelve times a minute. Keep doing until professional help arrives.
To bring a child back to life, keep your lips around his mouth and gently blow into his mouth. Give the first four breaths as quickly as possible to fill the blood with oxygen. If, in spite of your efforts, he starts turning a blue-grey colour, and you can feel no pulse(脉搏), then pressing is the last chance of saving his life.
With arms straight, rock forwards, pressing down on the lower half of the breastbone. Don't be too hard or you may break a rib. Check how effective you are by seeing if his colour improves or his pulse becomes independent to your chest pressing. If this happens, stop the pressing. Otherwise continue until rescue arrives.
【小题1】If you want to save someone drowning, you __________.

If you see someone drowning, speed is very important. Once you get him out of the water, if he isn't breathing, you have four minutes before his brain is completely destroyed. Support his neck, move his head back and press his chin upwards. This stops the tongue blocking the airway in the throat and is sometimes enough to get him breathing again. If that doesn't work, start mouth-to-mouth breathing. Press his nostrils (the two holes at the end of your nose, through which you breathe and smell things) together with your fingers. Open your mouth and take a deep breath. Blow into his lungs until his chest rises, then remove your mouth and watch his chest fall. Repeat twelve times a minute. Keep doing until professional help arrives.

　 To bring a child back to life, keep your lips around his mouth and gently blow into his mouth. Give the first four breaths as quickly as possible to fill the blood with oxygen. If, in spite of your efforts, he starts turning a blue-grey colour, and you can feel no pulse, then pressing is the last chance of saving his life.

　 With arms straight, rock forwards, pressing down on the lower half of the breastbone. Don't be too hard or you may break a rib. Check how effective you are by seeing if his color improves or his pulse becomes independent to your chest pressing. If this happens, stop the pressing. Otherwise continue until rescue arrives.

31 .If you want to save someone drowning, you __________.

A. have to pull off his clothes first .

B. should try to get him out of water as quickly as possible.

C. should first make out who he is.

D. ought to throw a life coat to him first .

32. Once a person stops breathing, it means ___________.

A. you have no more than 4 minutes to bring him to life again .

B. his brain is completely damaged.

C. he has passed away.

D. there is no way to save his life.

33 .To press his chin upwards is a way to _____________.

A. keep the tongue from blocking the airway in the throat.

B. prevent the tongue from stopping the airway in the throat.

C. wipe the tongue out of the throat.

D. see if he can possibly be saved.

34 .If the drowning boy has no pulse,_____________.

A. press his chin upwards is enough to get him breathing.

B. blow air into his mouth is sure to save his life.

C. press his nostrils together with your fingers can work.

D. press is the last chance of saving his life.

35. Which of the following statement is true?

A. Don’t stop pressing his chest, if the drowning man starts breathing again.

B. If you see someone drowning, you must give him mouth-to-mouth breathing.

C. If a man does not breathe for four minutes, his brain will be completely destroyed.

D. When pressing, you can do it as hard as you can.

If you see someone drowning, speed is very important. Once you get him out of the water, if he isn't breathing, you have four minutes before his brain is completely destroyed. Support his neck, move his head back and press his chin upwards. This stops the tongue blocking the airway in the throat and is sometimes enough to get him breathing again. If that doesn't work, start mouth-to-mouth breathing. Press his nostrils (the two holes at the end of your nose, through which you breathe and smell things) together with your fingers. Open your mouth and take a deep breath. Blow into his lungs until his chest rises, then remove your mouth and watch his chest fall. Repeat twelve times a minute. Keep doing until professional help arrives.

　 To bring a child back to life, keep your lips around his mouth and gently blow into his mouth. Give the first four breaths as quickly as possible to fill the blood with oxygen. If, in spite of your efforts, he starts turning a blue-grey colour, and you can feel no pulse, then pressing is the last chance of saving his life.

　 With arms straight, rock forwards, pressing down on the lower half of the breastbone. Don't be too hard or you may break a rib. Check how effective you are by seeing if his color improves or his pulse becomes independent to your chest pressing. If this happens, stop the pressing. Otherwise continue until rescue arrives.

31 .If you want to save someone drowning, you __________.

A. have to pull off his clothes first .

B. should try to get him out of water as quickly as possible.

C. should first make out who he is.

D. ought to throw a life coat to him first .

32. Once a person stops breathing, it means ___________.

A. you have no more than 4 minutes to bring him to life again .

B. his brain is completely damaged.

C. he has passed away.

D. there is no way to save his life.

33 .To press his chin upwards is a way to _____________.

A. keep the tongue from blocking the airway in the throat.

B. prevent the tongue from stopping the airway in the throat.

C. wipe the tongue out of the throat.

D. see if he can possibly be saved.

34 .If the drowning boy has no pulse,_____________.

A. press his chin upwards is enough to get him breathing.

B. blow air into his mouth is sure to save his life.

C. press his nostrils together with your fingers can work.

D. press is the last chance of saving his life.

35. Which of the following statement is true?

A. Don’t stop pressing his chest, if the drowning man starts breathing again.

B. If you see someone drowning, you must give him mouth-to-mouth breathing.

C. If a man does not breathe for four minutes, his brain will be completely destroyed.

D. When pressing, you can do it as hard as you can.

Can you imagine traveling to work in a one – man submarine? Some scientists believe that some day one – man submarines will be as many as automobiles are today．A famous French driver says, “One day soon, men will walk on the ocean floor as they do on the street!” Perhaps during your lifetime people will travel, and live in the sea．

If human beings want to live in the ocean, many human problems will need to be studied first.

Some of these problems, similar to those of living in outer space, are pressure, lack of oxygen and weightlessness. Many questions are still unanswered．For example, can our blood make itself fit for underwater surroundings? What will happen to our muscle if we live in the water very long? Scientists are looking for answers．

Perhaps in the future man will live in the sea, away from the crowded and noisy cities on land．Then sea has plenty of space, not only for floating living buildings and parks, but also for storing supplies and for underwater travel．

Some scientists believe that ocean living will benefit man in more than physical ways. In the freedom and beauty of the deep sea, man may find new sources of joy．

1.What can we do if we live in the ocean?  (    )

A．We can have plenty of oxygen．

B．We can be fit to live in the water very well．

C．We needn’t worry about things like weightlessness．

D．We can travel and work in the sea．

2.Why do some people hope to leave cities to live in the sea? Because_____．  (    )

A．people think they can live crowdedly in the sea

B．people wish to go the quiet seafloor to travel for several days

C．people want to break away from the crowded and noisy cities where they live now

D．only in this way can people get rid of noise pollution

3.In what ways could ocean living be helpful for man?  (    )

A．People can swim freely as much as possible．

B．People can be interested in the new pleasure there isn’t anywhere else．

C．The sea can supply people with enough foods and other things, so people needn’t work．

D．People can go boating and go to the park as often as possible．

4.Which of the following is the similar problem as that of living in outer space?  (    )

A．We are short of oxygen．

B．We are not familiar with the underwater surrounding．

C．We may die of weightlessness．

D．We can finds new joys．

5.Which of the following statements is true according to the passage?  (    )

A．The scientists have not solved the problem of weightlessness underwater．

B．The scientists have solved the problem of weightlessness when man live in space．

C．Some scientists believe that ocean living will benefit man in no more than physical ways．

D．Sea has plenty of space only for floating living buildings and parks．