题目
题型:北京中考真题难度:来源:
honors an important man, but Ben does not feel connected to him. However, the small-world theory (理论)
connects Ben to Dr. King. Ben"s mom (0) has a close friend, Amy (1). Amy"s uncle, Mark (2), once met and
spoke to John Carter (3), the son of President Jimmy Carter (4). Jimmy Carter knew Dr. King (5). In a way,
Ben is only "five people a-way" from Martin Luther King Jr.
The small-world theory says that everyone in the world is connected through a short chain (链条) of
people they know. Another name of this chain is degrees of separation. Each degree is a step that separates
a person from someone he or she does not know. There are zero degrees of separation between a person
and the people he or she knows directly. This means that there are zero degrees between Ben and his mom.
There is one degree of separation when just one person separates someone from a person he or she does not
know. Ben knows his mom, but he hasn"t met her close friend Amy. Therefore, Ben is one degree away from
Amy. As the chain continues. Amy"s uncle, Mark, is two degrees. John Carter is three degrees, and his father
is four degrees. Dr. King is five degrees away from Ben. The theory says that there are no more than six
degrees of separation between any two people in the world.
The small-world theory has a lot to do with math. The theory assumes (假定) that each per-son knows
100 people. Each one of those 100 people knows 50 different people. Each of those 50 people knows another
50 people, and so on. When someone continues the calculation" to six degrees, it is like this: 100 × 50 × 50 ×
50 × 50 × 50 = 31.25 × 109. This number is greater than 31 billion (a billion=a thousand million). There are
over 6 billion people in the world. These numbers show it is possible that six degrees of separation could
include everyone in the world.
Does the small-world theory work? No one has ever proved it. Maybe the theory just invites people to
think a little more about their places in the world.
B. John Carter
C. Amy
D. Mark
B. The relations between people.
C. The steps of knowing strangers.
D.The separation between strangers.
B. How many people one can get to know.
C. How people are connected in the world.
D. How the degrees of separation are set up.
B. more research is needed to prove the theory
C. six degrees are needed to know the strangers
D. the writer"s purpose is to help people find out their places
答案
核心考点
试题【阅读理解。 Each year Ben is glad when school is closed on Martin Luther King Jr. 】;主要考察你对教育文化类等知识点的理解。[详细]
举一反三
part of history. But history is not only what happened in the past. The word also means the study of the past,
through old written records and other kinds of facts.
Why do we study history? One reason is that we enjoy it. A good story is even better if it is true, and
history is full of good stories, though they can be terrible too. A more serious reason is to understand ourselves
and the world we live in. To understand events happening now, we need to know their causes. We cannot
understand the present if we know nothing about the past. History helps to explain why things are the way they
are.
Of course, history books cannot tell us everything about the past, not even everything that is recorded. A
history of the world has to pick out the people and events that changed the world.
Since ancient times, great civilizations have appeared in different countries and regions. Usually, only three
or four existed at the same time. While they lasted, they changed the lives not only of their own people, but of
their neighbors too.
注:(1) civilizations 文明 (2) exist 存在 (3) region 地区
__________________________________________________________
2. How do we study history?
__________________________________________________________
3. Why do we study history? Please give two reasons.
__________________________________________________________
__________________________________________________________
4. What have appeared in different countries and regions since ancient times?
__________________________________________________________
5. What title can you give to the passage?
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dogs help people to look after sheep, other dogs help them to find lost children. And some of the dogs can
help the blind (盲人的,看不见的) do things.
Many years ago there was a very good dog. His name was Seeing Eye dog. Now we can see this kind of
dogs all over the world. They are working for the blind.
The Seeing Eye dog is strong, good and easy to train (训练). He helps the blind to walk from place to place.
Before a dog becomes a Seeing Eye dog, he must go to a training school for about three months. First the
dog has to learn to sit or stay when he hears the trainer"s call. In his next lesson the dog learns to make his
trainer across busy streets.
The dog has many things to learn. And in every lesson he must learn to do one thing again and again for
many times.
At the end of the training school he must take tests. When he passes the tests, the Seeing Eye dog will do
the things by himself.
Now he can help blind people. The new master may be a man, a woman, or even a child. It takes the dog
and his blind master about a month to learn to work and live together.
B. only in small cities
C. all over the world
D. only on the busy street
B. Help blind people
C. Find lost children
D. Train blind people
B. go to a middle school
C. go to an evening school
D. go to a children school
B. when he hears another dog"s call
C. when he hears the master"s call
D. when he hears the trainer"s call
B. five years
C. about a month
D. one week
though I really want some," said Wang, a middle school student in Guangzhou, capital of South China"s
Guangdong Province.
A report says that most of Guangzhou teenagers (青少年) want to do more housework, but their parents
usually do not think so. According to (根据) the report, 37% of the teenagers do housework less than half an
hour every day; 39.4% of them from half an hour to one hour; 11.5% one to two hours; 5.6% over two hours;
and 6.2% just have"no" housework to do.
"Most of my time after school should be spent on my homework, and I don"t have time to play. Even on
weekends, my parents ask me to stay at home to study. I can"t go to see a film, watch TV or play with other
children. My parents never say to me about anything to do with the housework. Sometimes I feel I have the
duty to do something to help my parents, but they just get everything done for me," said Yang Ming, a sixteen-
year-old student.
Experts say this won"t change much unless the College Entrance Examination, which adds much pressure (压力) on high school students, is changed.
_______________________________________________________________
2. What do most of Guangzhou teenagers want to do, according to the report?
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3. How many students never have any housework to do?
_______________________________________________________________
4. What do most parents think is the most important for children?
_______________________________________________________________
5. 用短语或简洁的句子回答:
What does Yang Ming like to spend his time doing after school?
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字母代号填入相应的空格线上。
What is the biggest animal of all? The whale (鲸) 1______. The blue whales are the 2______ whales.
Some blue whales weigh more 3______ a hundred tons (吨). 4______ heavy that is!Just think of a bus.
A bus is big and heavy, 5______ it weighs only about fifteen tons. A bus is about eight metres 6______,
but some blue whales are as long as thirty metres! Though (虽然)whales are 7______ big, they are a gentle
kind of giant (巨物). They live together and 8______ each other. Now we know whales "talk" to each other
9______ the water. And the giants "speak" 10______ singing birds.