Two American scientists told the people in industrial nations that they would be much healthier if they ate more of the same kind of foods eaten by humans living more than 10,000 years ago．
The scientists say that the human body has changed very little since human first appeared on earth, but the way we live has changed greatly．Our body has not been able to deal with these changes in life style and this has led to new kinds of sicknesses．These new sicknesses were not known in ancient times．So they are called “diseases of civilization(文明)”．Many cancers and diseases of the blood system, including heart attacks and strokes(中风)are examples of such diseases．
Scientists noted that early stone-age people used very little alcohol(酒精)or tobacco, probably none．Ancient people also got a great deal of physical exercise, but a change in food is one of the main differences between life in ancient times and life today．Stone-age people hunted wild animals for their meat, which had much less fat than farm animals．They also ate a lot of fresh wild vegetables, and fruits．They did not use milk and other dairy products, and they made very little use of grains．But today, we eat a large amount of dairy products and grain foods．We eat six times more salt than stone-age people．We eat more sugar．We eat twice as much fat but only one third as much protein(蛋白质)and much less vitamin C．
People today probably do not want to live as people thousands of years ago did, but scientists say that we would be much healthier if we ate as those ancient people did, cutting the amount of fatty, salty and sweet foods．
(1)
The people in industrial nations would be much healthier if they ate ________．
[ ]
A．
more foods as humans living 10,000 years ago did
B．
as humans living 10,000 years ago
C．
more kinds of food eaten by people living over 10,000 years ago
D．
more of the same kinds of foods eaten by people over 10,000 years ago．
(2)
New kinds of sicknesses have been found because ________．
[ ]
A．
the human body has changed compared with human first appeared on earth
B．
the way we live has changed a little
C．
our body can’t deal with the changes in life style
D．
the way we live today is proper for the human body
(3)
What is the main cause mentioned in the article why people suffer from a lot of new sicknesses?
[ ]
A．
Ancient people did a great deal of physical exercise
B．
People today have a lot of alcohol
C．
People today have more tobacco
D．
Food is quite different between life today and life in ancient times
(4)
Stone-age people were much healthier than people today because they ate a lot of ________．
[ ]
A．
milk and other dairy products
B．
grain foods and farm animals
C．
salt and sugar
D．
wild animals, fresh wild vegetables and fruits
(5)
From this article, we know that ________ are not good to our health．
You will have a lot of reading to do in this grade this year．You can do more of it in less time if you learn to read rapidly．
Perhaps you have been told about some habits (习惯) which keep a person from reading fast and have been strongly asked to break those habits which you might have．
Do you still have any of these bad habits?Check yourself by answering“yes”or“no”to these questions．
(1) Do you move your lips (嘴唇) when reading silently?
(2) Do you point to words with your finger as you read?
(3)Do you move your head from side to side as you read?
(4)Do you read one word at a time?
If you answer“yes”to any of these questions,start at once to break the habit．If you move your tips，hold your fingers over them，or hold a piece of paper be-tween your lips while you are reading．Then if your lips move，your will know it and can stop them．
If you point to words，hold the two sides of your book，one side with your left hand，the other side with your right hand．Then you won't have a free finger to use in pointing while reading．If you move your head，place your chin (下巴) in one hand and hold your head still (静止不动的)．
If you read no more than one or two or three words at a time，you need to work very hard in learning to take in (吸收) more words at each glance (一瞥) as your eyes travel across the lines of words．
Even if you do rather fast now，you can learn to read even faster．As you probably have been told，the secret of fast reading is to take in whole groups of words as each glance．Read in through groups and force (迫使) your eyes along the lines of words as fast as you can to make them go．Anyone who practices doing these things will he able to read faster．
(1)
You may hold your fingers over your lips while reading so as ______．
A．to tell others to be silent
B．to feel whether your lips move or not
C．to hold a piece of paper between them
D．to keep yourself from talking to others
[ ]
(2)
When you read，______．
A．don't keep your head still
B．don't hold your books with your hands
C．don't stand up near a desk
D．don't use your finger to point to words
[ ]
(3)
If you learn to read fast，______．
A．you can read more in less time
B．you can write faster
C．you can understand better
D．you can read less in more time
[ ]
(4)
You must _______ those habits that we are talking about in this reading．
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