Recently, researchers in the US have carried out a study on laughing, one of the most natural characteristics of human behavior.

Jo-Anne Bachorowsky, a psychology professor at Vandebilt University, 36  a team of researchers who   37   a total of 11 short videos to 97 young adult volunteers in the US. They found that the participants produced a   38  of sounds when they laughed, 39  grunts(呼噜声) and snorts(哼声).

The researchers found that some of the   40   were dependent   41  gender(性别). Men laughed with grunts and snorts more often than women,   42  women’s   43   was more song-like.

They also found that people’s laughter could change,   44  who they were with at the time. Whether they were with a man or a woman and   45  person was a friend or a   46   both played a part in laughter.

The researchers found that women’s laughter was very high with a   47   pitch(音高) when they were with male strangers. And women taking   48   in the study laughed more often when they were with a male friend than when they were with a(n) 49   friend or a male stranger. But men laughed more freely with friends of either sex than with strangers of either sex.

Scientists believe that the   50   consumed in laughing 100 times is   51  to 15 minutes on an exercise bike. Another 52   of laughter is 53   it improves our mental health. Laughter reduces our levels of stress. It also helps us   54   serious illness.

  55  ,we think laughter can make us feel good.

E

Are you worried by the rising crime rate? If you are, then you probably know that your house, possessions and person are increasingly in danger of suffering from the great rise in the cases of burglary(入室行窃) and attack.

Figures indicate an ever- increasing crime rate but it is only too easy to imagine “it will never happen to me”. Unfortunately, numbers show that it really can happen to you and, if you live in a large city, you run twice the risk of being a victim(受害者).

Fortunately, there is something which you can do. Protect Alarms can help to protect your house with a burglar alarm system which is effective, simple to operate and easy to buy.

You must remember that possessing a burglar alarm is no indication that your house is filled with valuable possessions. It quite simply indicates to unwelcome visitors that yours is one house they will not break into easily so they carry on to an unprotected house where their job is made a lot easier.

Send now for our free leaflet(小册) telling you how we can Protect Alarm your house quickly, easily and cheaply. Complete and tear off the slip below and post it to us. Postage is free. Or telephone us on 327 6721 where we have a round-the-clock answering service, through which you can get the information any time you want. It costs nothing to find out about Protect Alarms.

72. It seems that people who live in large cities are ________.

A.more often sufferers than those living in other areas

B.of the opinion that numbers are wrong

C.twice as rich as people living in other areas

D.too poor to afford the protect system

73. The writers of this text want to give the impression that the PROTECT ALARMS system is _________.

A. free of charge      B. easy to use       C. complex       D. lasting

74. The article shows that having an alarm system will _______.

A.show burglars that you have something worth stealing

B.persuade burglars not to break into your house

C.make the burglar’s job less difficult

D.persuade burglars to try again another time.

75. In order to find out more information about this alarm system, one can _______.

A. buy a leaflet              B. write enclosing a stamped, addressed envelope

C. sign an agreement          D. phone at any time of day or night

People drank a kind of tea _________ from leaves _________ a special chemical to reduce body pains and fever.

A．making , possessed                      B．made , possessing

C．having made, possessed                  D．having been made, possessing

People drank a kind of tea _________ from leaves _________ a special chemical to reduce body pains and fever.

Are you worried by the rising crime rate? If you are, then you probably know that your house, possessions and person are increasingly in danger of suffering from the great rise in the cases of burglary(入室行窃) and attack.

Figures indicate an ever- increasing crime rate but it is only too easy to imagine “it will never happen to me”. Unfortunately, numbers show that it really can happen to you and, if you live in a large city, you run twice the risk of being a victim(受害者).

Fortunately, there is something which you can do. Protect Alarms can help to protect your house with a burglar alarm system which is effective, simple to operate and easy to buy.

You must remember that possessing a burglar alarm is no indication that your house is filled with valuable possessions. It quite simply indicates to unwelcome visitors that yours is one house they will not break into easily so they carry on to an unprotected house where their job is made a lot easier.

Send now for our free leaflet(小册) telling you how we can Protect Alarm your house quickly, easily and cheaply. Complete and tear off the slip below and post it to us. Postage is free. Or telephone us on 327 6721 where we have a round-the-clock answering service, through which you can get the information any time you want. It costs nothing to find out about Protect Alarms.

72. It seems that people who live in large cities are ________.

more often sufferers than those living in other areas

of the opinion that numbers are wrong

twice as rich as people living in other areas

too poor to afford the protect system

73. The writers of this text want to give the impression that the PROTECT ALARMS system is _________.

   A. free of charge      B. easy to use       C. complex       D. lasting

74. The article shows that having an alarm system will _______.

show burglars that you have something worth stealing

persuade burglars not to break into your house

make the burglar’s job less difficult

persuade burglars to try again another time.

75. In order to find out more information about this alarm system, one can _______.

   A. buy a leaflet               B. write enclosing a stamped, addressed envelope

   C. sign an agreement          D. phone at any time of day or night