When you think about math, you probably don’t think about breaking the law, solving mysteries or finding criminals. But a mathematician in Maryland does, and he has come up with mathematical tools to help police find criminals.

People who solve crimes look for patterns that might reveal(揭示) the identity of the criminal. It’s long been believed, for example, that criminals will break the law closer to where they live, simply because it’s easier to get around in their own neighborhood. If police see a pattern of robberies in a certain area, they may look for a suspect(嫌疑犯) who lives near the crime scenes. So, the farther away from the area a crime takes place, the less likely it is that the same criminal did it.

But Mike O’Leary, a mathematician at Towson University in Maryland, says that this kind of approach may be too simple. He says that police may get better clues to the location of a criminal’s home base by combining these patterns with a city’s layout(布局) and historical crime records.

The records of past crimes contain geographical information and can reveal easy targets — that is, the kind of stores that might be less difficult to rob. Because these stores are along roads, the locations of past crimes contain information about where major streets and intersections are. O’Leary is writing a new computer program that will quickly provide this kind of information for a given city. His program also includes information about the people who live in the city, and information about how a criminal’s patterns change with age. It’s been shown, for example, that the younger the criminal, the closer to home the crime.

Other computer programmers have worked on similar software, but O’Leary’s uses more math. The mathematician plans to make his computer program available, free of charge, to police departments around the country.

The program is just one way to use math to fight crime. O’Leary says that criminology — the study of crime and criminals — contains a lot of good math problems. “I feel like I’m in a gold mine and I’m the only one who knows what gold looks like,” he says. “It’s a lot of fun.”

1.

 To find criminals, police usually ______.

A. focus on where crimes take place      B. seek help from local people

C. depend on new mathematical tools      D. check who are on the crime scene

2.

O’Leary is writing a computer program that ______.

A. uses math to increase the speed of calculation

B. tells the identity of a criminal in a certain area

C. shows changes in criminals’ patterns

D. provides the crime records of a given city

3.

 By “I’m the only one who knows what gold looks like”, O’Leary means that he ______.

A. is better at finding gold than others

B. is the only one who uses math to make money

C. knows more criminals than other mathematicians

D. knows best how to use math to help solve crimes

4.

What is the main idea of the text?

A. Criminals live near where crimes occur.

B. Math could help police find criminals.

C. Crime records could be used to fight crime.

D. Computer software works in preventing crimes.

When we donate blood, a small amount is usually taken in advance for at least ABO and Ph systems typing. If you are O+, the O is your ABO type and the + is your Rh type. It is possible to be A, B, AB, or O as well as Rh + or Rh-.

The ABO system was discovered by Karl Landsteiner in the early 1900s. He was awarded the Nobel Prize for his achievements. There are four basic types of blood in the ABO system: A, B, AB and O. Everybody is born with one of these four types of blood. We get blood type, just like hair color and height from parents. Because of the substances(物质) contained in each type, the four groups must be transfused carefully, If two different blood types are mixed together, it may put a person into an extremely dangerous situation. Basically, A and B cannot be mixed. A and B cannot receive AB, but AB may receive A or B. In an emergency, type O blood can be given because it is most likely to be accepted by all blood types, so it is often called the universal donor. However, there is still a risk. For the opposite reason, AB is sometimes called the universal receiver. However, because there can be so many reactions in the blood bank of the hospital.

There is a relationship between your blood type and your nationality. Among the Europeans, about 45 percent have type O while 42 percent have type A. The rarest is type AB. Other races have different percentage. For example, some American Indian groups have nearly 100 percent type O out of 100 donors in the world…

1. Which of the following shown the correct relationships in blood transfusions?

  A B  A         B    A       B      A      B

 AB O   AB     O      AB     O     AB      O

      A             B            C               D

2. The underlined word “transfuse” most probably means ________.

  A. to put the blood into a container

  B. to move the blood from one place to another  K^S*5U.C#O

  C. to put the blood of one person into the body of another

  D. to give power to another person

3. The writer suggests that the third most common blood type among the Europeans is ______.

  A. B           B. A            C. AB          D. O

4 The text mainly tells us ______.

  A. about the basic types of human blood

  B. what kind of blood is the most common

  C. about Karl Landsteiner who won the Nobel Prize

  D. the relationship between blood type and nationality

When you think about math, you probably don’t think about breaking the law, solving mysteries or finding criminals. But a mathematician in Maryland does, and he has come up with mathematical tools to help police find criminals.
People who solve crimes look for patterns that might reveal(揭示) the identity of the criminal. It’s long been believed, for example, that criminals will break the law closer to where they live, simply because it’s easier to get around in their own neighborhood. If police see a pattern of robberies in a certain area, they may look for a suspect(嫌疑犯) who lives near the crime scenes. So, the farther away from the area a crime takes place, the less likely it is that the same criminal did it.
But Mike O’Leary, a mathematician at Towson University in Maryland, says that this kind of approach may be too simple. He says that police may get better clues to the location of a criminal’s home base by combining these patterns with a city’s layout(布局) and historical crime records.
The records of past crimes contain geographical information and can reveal easy targets — that is, the kind of stores that might be less difficult to rob. Because these stores are along roads, the locations of past crimes contain information about where major streets and intersections are. O’Leary is writing a new computer program that will quickly provide this kind of information for a given city. His program also includes information about the people who live in the city, and information about how a criminal’s patterns change with age. It’s been shown, for example, that the younger the criminal, the closer to home the crime.
Other computer programmers have worked on similar software, but O’Leary’s uses more math. The mathematician plans to make his computer program available, free of charge, to police departments around the country.
The program is just one way to use math to fight crime. O’Leary says that criminology — the study of crime and criminals — contains a lot of good math problems. “I feel like I’m in a gold mine and I’m the only one who knows what gold looks like,” he says. “It’s a lot of fun.”
【小题1】
To find criminals, police usually ______.

A．Criminals live near where crimes occur.

B．Math could help police find criminals.

C．Crime records could be used to fight crime.

D．Computer software works in preventing crimes.

【小题1】 The doctor said that you are o_________, so you’d better have a healthy diet and try your best to lose
your weight.            
【小题2】 We must l______ the expense to what we can afford.    
【小题3】. Hearing that songs always r_____ me of my childhood.  
【小题4】 I will c_____ my teacher about the problem.         
【小题5】I am _________ ( 盼望着 )seeing you again.    
【小题6】 She set up the charitable funds _________(纪念) her father.  
【小题7】The naughty boy loves _________(恶作剧) others.  
【小题8】You should ______(删减) what you wrote in your paper to 3,000 words.  
【小题9】 She was deeply _______.(负债)       
【小题10】 My father knows clearly that smoking is bad for his health, but he just cannot______（戒除，远离）it.

第II卷（共35分）

第四部分：写（共三节，满分35分）

第一节：单词拼写（每题1分，共10分）

71．The colours “black” and “white” are o________.

72．The flowing water is used to drive turbines（涡轮机），which g________electricity.

73．Most African families now live below the p________line.

74．F________, the fire was discovered soon after it had started.

75．It’s very cold today; the temperature has dropped to f________point.

76．The police say there are some________（相似之处）between the two attacks.

77．He looks________（诚实）enough, but can we trust him?

78．He spent half his life________（抱怨）everything around him.

79．How can you expect me not to be________（挂念）about my own son?

80．—Do you let your kids travel alone at night?

—________（绝对，当然）not.