题目内容
Recently some American scientists have given a useful sincere piece of advice to people in industrialized nations that they would be much healthier if they ate more of the same kind of food eaten by humans living more than 10,000 years ago.
The scientists say that the human body has changed very little since humans first appeared on the 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”. Many cancers and diseases of the blood system, including heart attacks and strokes ( 中风 ) are examples of such diseases.
Scientists noted that people in both the Old Stone Age and the New Stone Age enjoyed very little alcohol 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 that of today.
Stone-age people hunted wild animals for their meat, which had much less fat than domestic or tame ones ( 家畜 ). They also ate a lot of fresh wild vegetables and fruits. They didn’t have milk or any other dairy products, and they made very little use of grains. But today, we eat a large amount of these. We eat six times more salt than our remote ancestors. We eat more sugar. We eat twice as much fat but only one third as much protein and much less vitamin C.
People today probably do not want to live the way people thousands of years ago did, but scientists say that we would be much healthier if we ate much the same way as remote ancestors did, cutting the amount of fatty, salty and sweet food.
67. What is the main cause that 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 today is quite different from that of ancient times.
68. Which of the following belongs to the dairy products?
A. Milk B. Corn C. Pork D. Flour
69. New kinds of sicknesses have been found because ________.
A. the human body has changed compared with humans who first appeared on the 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
70. According to some scientists, Stone-age people were much healthier than people today because they ate a lot of ________.
A. milk and other dairy products B. salt and sugar
C. wild animals, fresh wild vegetables and fruits D. grain foods
【小题1】D
【小题2】A
【小题3】C
【小题4】C
解析
天天向上一本好卷系列答案
小学生10分钟应用题系列答案When people talk of a virus these days, chances are that they are talking about computer virus that have the power wipe out all the valuable work people may have stored in their computers. Imagine, the virus has the power to make military systems, giant banks, airports, hospitals and traffic system come to stop!
What does a computer virus do? It targets electronic objects that are programmed. The virus spreads through connections between these electronic objects. For virus spreading experts, e-mail is a favorite method of sending their destructive (破坏性的) weapon.
But scientists warn that this is not the worst that can happen. There is more. People are also connected through phones. The next virus may actually target mobile phones, especially those that are programmed to do many tasks apart from just communicating. It would then be easy for a virus to infect those programs and create major disorder.
For example, these virus may have the power to record your phone conversations and make others hear them. They create problems with your electronic money accounts, or they could create a mountain of telephone bills for calls you never made. And that would be a disaster. A report on this was published in the New Scientist recently.
One way out would be to have simpler phones with not so many different functions. This would mean there would mean there would be fewer programs for the virus to attack. But mobile phone producers are in a fix. People on longer want an electronic item to perform just one task. They want more and more functions added. That would mean more software programs to make the mobile phone perform all those functions. And that means the possibility of more viruses.
【小题1】It can be inferred from the passage that ______.
| A．computer viruses are not so as destructive as mobile phone viruses |
| B．people should be careful when receiving e-mails |
| C．people find it difficult to use electronic equipment correctly |
| D．having electronic money accounts brings people a lot of convenience |
| A．You can’t hear the person who answers the phone clearly |
| B．You can’t send e-mails with your mobile phone |
| C．your phone bill increases for unknown reasons |
| D．You can hear other people’s phone conversations |
| A．Mobile phone producers have made no progress. |
| B．Mobile phone producers are proud of their products. |
| C．Mobile phone producers are faced with a difficult situation. |
| D．Mobile phone producers refused to fight against virus. |
| A．Government officials | B．Virus spreading experts |
| C．Electronic scientists | D．Mobile phone users |
31 cells, including 12 with a “live scan” system for drunken or disturbed prisoners, which detects the rise and fall of their chest. An alarm alerts（报警
） officers if a prisoner's breathing stops and carries on ringing until the door is ope
ned. 
friendliness. It is thought that strong blues will stimulate clear thought and lighter, soft colors will calm the mind and aid concentration. 
ellow can lift spirits and self-respect.
C. 
Blue. D. Red. I am a mother of three and have recently completed my college degree. My teacher’s last 36 of the term was called “ Smile”. I am a very friendly person and always 37 at everyone. So I thought this would be very 38 .
Soon after we were given the project, my 39 went out to McDonald’s. We were waiting to be 40 , when all of a sudden everyone around us began to 41 , and even my husband did. There standing behind me were two homeless men 42 .
As I looked down at the short gentleman with 43 eyes, he said, “Good day.” The second man stood behind his friend. I 44 the second man was mentally challenged(智障) and the blue-eyed gentleman was his helper.
The young 45 at the counter asked him what they wanted.
He said, “Coffee is all, Miss.” Because that was all they could 46 .
I smiled and asked the young lady to give me two more breakfast meals on a 47 tray(托盘). I then said to the men, “ I did not do this for you. God is here 48 through me to give you hope.”
When I joined my husband, he smiled at me, saying, “That is 49 God gave you to me, Honey, to give me hope.”
I returned to 50 with this story in hand. I 51 “my project” and the teacher read it. Then she looked up at me and said, “Can I 52 this with the class?”
I slowly 53 and she began to read and that was when I knew that we, as human beings, share this to help people and to be 54 .
In my own way I had 55 the people at McDonald’s, my husband, sons, teacher, and every person that shared the classroom on the last night I spent as a college student.
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When I was a boy growing up in New Jersey in the 1960s, we had a milkman delivering milk to our doorstep. His name was Mr. Basille. He wore a white cap and drove a white truck. As a 5-year-old boy, I couldn’t take my eyes off the coin changer fixed to his belt. He noticed this one day during a delivery and gave me a quarter out of his coin changer.
Of course, he delivered more than milk. There was cheese, eggs and so on. If we needed to change our order, my mother would pen a note—“Please add a bottle of buttermilk next delivery”—and place it in the box along with the empty bottles. And then, the buttermilk would magically（魔术般）appear.
All of this was about more than convenience. There existed a close relationship between families and their milkmen. Mr. Basille even had a key to our house, for those times when it was so cold outside that we put the box indoors, so that the milk wouldn't freeze. And I remember Mr. Basille from time to time taking a break at our kitchen table, having a cup of tea and telling stories about his delivery.
There is sadly no home milk delivery today. Big companies allowed the production of cheaper milk thus making it difficult for milkmen to compete (竞争). Besides, milk is for sale everywhere, and it may just not have been practiced to have a delivery service.
Recently, an old milk box in the countryside I saw brought back my childhood memories. I took it home and planted it on the back porch (门廊). Every so often my son's friends will ask what it is. So I start telling stories of my boyhood, and of the milkman who brought us friendship along with his milk.
【小题1】Mr. Basille gave the boy a quarter out of his coin changer .
| A．to show his magical power | B．to pay for the delivery |
| C．to satisfy his curiosity | D．to please his mother |
| A．He wanted to have tea there. | B．He was a respectable person. |
| C．He was treated as a family member. | D．He was fully trusted by the family. |
| A．Nobody wants to be a milkman now. | B．It has been driven out of the market. |
| C．Its service is getting poor. | D．It is forbidden by law. |
| A．He missed the good old days. | B．He wanted to tell interesting stories. |
| C．He needed it for his milk bottles. | D．He planted flowers in it. |