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 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’m the only one who knows what gold looks like,” he says. “It’s a lot of fun.”
49. To find criminals, police usually _________.
A. check who are on the crime scene
B. seek help from local people
C. depend on new mathematical tools
D. focus on where crimes take place
50. 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. provides the crime records of a given city
D. shows changes in criminals’ patterns
51. 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 best how to use math to help solve crimes
D. has more knowledge of gold than other mathematicians
52. What is the main idea of the text?
A. Math could help police find criminals.
B. Criminals live near where crimes occur.
C. Crime records could be used to fight crime.
D. Computer software works in preventing crimes.
科目:高中英语 来源: 题型:054
阅读下面短文, 掌握其大意, 然后从1-25各题所给的四个选项中, 选出一个最佳答案。
When sailors are allowed ashore (登岸) after a long time at sea, they sometimes get drunk and cause trouble. 1 this reason, the navy (海军) 2 has its police in big ports. 3 sailors cause trouble, the police come and 4them.
One day, the police in a big seaport received a telephone call 5 a bar(酒吧)in the town. The barman said that a big sailor had got drunk and 6 the furniture in the bar. The officer 7 the police guard that evening said that he 8 immediately.
Now, officers who 9 and punish the sailors who were 10 drunk usually choose 11 policeman they could find to go with them. 12 this particular officer did not do this. Instead, he chose the smallest and 13 man he could find to go to the bar with him and 14 the sailor. Another officer who 15 there was surprised when he saw the officer of the guard choose 16 small man. 17 he said to him. "Why 18 you take a big man with you? You have to fight the sailor who 19."
"Yes, you are 20 right," answered the officer of the guard. "That is exactly 21 I 22 this small man. If you saw two policemen coming 23 you, and one of them was 24 the other, which one 25 you attack(攻击)?"
(1) |
A. In spite of |
B. Because of |
C. For |
D. To |
[ ] |
(2) |
A. always |
B. seldom |
C. forever |
D. sometimes |
[ ] |
(3) |
A. As |
B. Where |
C. Wherever |
D. Whenever |
[ ] |
(4) |
A. meet with |
B. deal with |
C. meet |
D. judge |
[ ] |
(5) |
A. about |
B. from |
C. in |
D. of |
[ ] |
(6) |
A. was breaking |
B. would break |
C. had broken into |
D. was breaking in |
[ ] |
(7) |
A. charging |
B. charged by |
C. in charge of |
D.in charge from |
[ ] |
(8) |
A. was leaving |
B. is coming |
C. will leave |
D. would come |
[ ] |
(9) |
A. would go |
B. need come |
C. dared come |
D. had to go |
[ ] |
(10) |
A. very |
B. very much |
C. heavily |
D. much more |
[ ] |
(11) |
A. the biggest |
B. a much bigger |
C. a bigger |
D. a big |
[ ] |
(12) |
A. In fact |
B. But |
C. So |
D. And |
[ ] |
(13) |
A. strong-looking |
B. weakest-looking |
C. stronger-looking |
D. strongest-looking |
[ ] |
(14) |
A. seize |
B. caught |
C. get rid of |
D. deal |
[ ] |
(15) |
A. was |
B. had been |
C. would be |
D. happened to be |
[ ] |
(16) |
A. such an |
B. so a |
C. such a |
D. a such |
[ ] |
(17) |
A. Yet |
B. But |
C. So |
D. Then |
[ ] |
(18) |
A. don't |
B. didn't |
C. can't |
D. do |
[ ] |
(19) |
A. had got drunk |
B. is drunk |
C. is drinking |
D. drank |
[ ] |
(20) |
A. all |
B. very |
C. too |
D. quite |
[ ] |
(21) |
A. how |
B. what |
C. why |
D. that |
[ ] |
(22) |
A. will carry |
B. take |
C. am taking |
D. am holding |
[ ] |
(23) |
A. up |
B. at |
C. onto |
D. towards |
[ ] |
(24) |
A. not smaller than |
B. as big as |
C. as small as |
D. much smaller than |
[ ] |
(25) |
A. would |
B. will |
C. shall |
D. can |
[ ] |
查看答案和解析>>
科目:高中英语 来源: 题型:054
完形填空
Tadatoyo Yamamoto is a Japanese businessman.He 1 the US from time to time.While he was 2 at a hotel on a visit to Chicago,he put his bag on the 3 .A few minutes 4 ,Mr Yamamoto reached down for it,but it was 5 .Inside it were about $ 900,his passport(护照), 6 of his family,and his 7 tickets to Japan.
But three weeks 8 he returned to Tokyo,Mr Yamamoto 9 an envelope.There was 10 inside but his passport,his airline tickets,photos of his family and 11 orders for more than $900 and a 12 from Mr Joseph Loveras.It said:
“I 13 this money order and the things … will make you believe in the 14 of Chicago.”
The next 15 he travelled to the US,Mr Yamamoto 16 Mr Loveras.He was a 67-year-old sick man with a total 17 of $ 493 a month.
He explained that he 18 the bag on a street corner and 19 the money and the tickets in the top part of the 20 .He changed the money into money orders and 21 his own money to send it to Japan.
Mr Yamamoto was very 22 by what Mr Loveras had done. “I asked him 23 he would go to all the trouble to return 24 to me.He told me that if he had not done it,it would have made him feel bad for the rest of his 25 .”
Now they have become friends,and Mr Yamamoto visits Mr Loveras every time he is in the US.
1. |
||||
[ ] |
||||
A.understands |
B.studies |
C.visits |
D.calls |
|
2. |
||||
[ ] |
||||
A.looking |
B.living |
C.telephoning |
D.sleeping |
|
3. |
||||
[ ] |
||||
A.table |
B.floor |
C.car |
D.computer |
|
4. |
||||
[ ] |
||||
A.later |
B.ago |
C.before |
D.earlier |
|
5. |
||||
[ ] |
||||
A.open |
B.broken |
C.down |
D.gone |
|
6. |
||||
[ ] |
||||
A.information |
B.photos |
C.names |
D.letters |
|
7. |
||||
[ ] |
||||
A.coming |
B.return |
C.written |
D.waste |
|
8. |
||||
[ ] |
||||
A.when |
B.before |
C.after |
D.till |
|
9. |
||||
[ ] |
||||
A.received |
B.accepted |
C.picked up |
D.heard from |
|
10. |
||||
[ ] |
||||
A.anything |
B.something |
C.everything |
D.nothing |
|
11. |
||||
[ ] |
||||
A.money |
B.post |
C.spoken |
D.bank |
|
12. |
||||
[ ] |
||||
A.record |
B.letter |
C.programme |
D.passage |
|
13. |
||||
[ ] |
||||
A.decide |
B.believe |
C.hope |
D.learn |
|
14. |
||||
[ ] |
||||
A.service |
B.hotels |
C.police |
D.people |
|
15. |
||||
[ ] |
||||
A.day |
B.hour |
C.time |
D.way |
|
16. |
||||
[ ] |
||||
A.looked for |
B.looked after |
C.called at |
D.called on |
|
17. |
||||
[ ] |
||||
A.unmber |
B.income |
C.saving |
D.cost |
|
18. |
||||
[ ] |
||||
A.bought |
B.tried |
C.saw |
D.picked |
|
19. |
||||
[ ] |
||||
A.found |
B.paid |
C.passed |
D.changed |
|
20. |
||||
[ ] |
||||
A.bus |
B.bag |
C.jpise |
D.wall |
|
21. |
||||
[ ] |
||||
A.shared |
B.got |
C.wasted |
D.spent |
|
22. |
||||
[ ] |
||||
A.excited |
B.surprised |
C.moved |
D.frigtened |
|
23. |
||||
[ ] |
||||
A.how |
B.when |
C.whether |
D.why |
|
24. |
||||
[ ] |
||||
A.things |
B.everything |
C.the bag |
D.the money |
|
25. |
||||
[ ] |
||||
A.life |
B.country |
C.city |
D.family |
查看答案和解析>>
科目:高中英语 来源:英语教研室 题型:054
Peter, awaking from a deep sleep, thought his wife was only having a 2 dream.
“Stop that noise, ” he said to her. He turned over and tried to go to 3 again, but his wife still cried out, “On, help! help! I’m sure I’m 4 . ”
Peter got out of bed and started 5 , but he could not find him any clothes.
“Where is my shirt? ” he asked. His wife was 6 ill to tell him, and she could only cry, “Oh, my 7 stomach!”
As soon as he had put his clothes 8 , he said, “Now, my dear, are you quite 9
that you need the doctor? Surely you can wait 10 morning, can’t you? ”
“No, I can’t. Go, go, go, ”his wife shouted, “ 11 you will find me dead 12
the morning. ”
So Peter went out into the dark street. He had only gone a few meters 13 he heard his wife calling him again.
“I’m 14 again now, and I shall not want the doctor, ” she said, softly.
Hearing this, he started running as 15 as he could towards the doctor’s. When he arrived there, he knocked at the door loudly enough to wake 16 around.
The doctor put his sleepy head out of the bedroom window and said, “Er? Who’s there? ”
“Oh, Doctor, ”Peter called up to him, “I’ve very 17 news for you. My wife 18
ill with a terrible stomachache. I was on my way to bring you to her, but she called me back to say the trouble had suddenly 19 her. So you need not come. Go back to 20 now, and sleep well!”
1. A. driver B. nurse
C. doctor D. child
2. A. terrible B. interesting
C. surprising D. wonderful
3. A. bed B. sleep
C. dream D. hospital
4. A. walking B. dying
C. aching D. sleeping
5. A. dressing B. wearing
C. raising D. working
6. A. very B. so
C. too D. quite
7. A. good B. bad
C. wrong D. poor
8. A. down B. off
C. on D. up
9. A. surprised B. afraid
C. certain D. worried
10. A. before B. for
C. to D. until
11. A. and B. but
C. so D. or
12. A. after B. in
C. before D. until
13. A. after B. when
C. before D. while
14. A. good B. wrong
C. all right D. right
15. A. fast B. slowly
C. hurriedly D. happily
16. A. everyone B. someone
C. no one D. doctors
17. A. good B. bad
C. necessary D. ill
18. A. fell B. stayed
C. grew D. failed
19. A. gone off B. missed
C. pleased D. left
20. A. your home B. your bedroom
C. your dream D. bed
查看答案和解析>>
科目:高中英语 来源: 题型:054
In the middle of the night, Peter’s wife suddenly fell ill. She couldn’t help crying, “Oh, my stomach! Get the 1 !”
Peter, awaking from a deep sleep, thought his wife was only having a 2 dream.
“Stop that noise, ” he said to her. He turned over and tried to go to 3 again, but his wife still cried out, “On, help! help! I’m sure I’m 4 . ”
Peter got out of bed and started 5 , but he could not find him any clothes.
“Where is my shirt? ” he asked. His wife was 6 ill to tell him, and she could only cry, “Oh, my 7 stomach!”
As soon as he had put his clothes 8 , he said, “Now, my dear, are you quite 9
that you need the doctor? Surely you can wait 10 morning, can’t you? ”
“No, I can’t. Go, go, go, ”his wife shouted, “ 11 you will find me dead 12
the morning. ”
So Peter went out into the dark street. He had only gone a few meters 13 he heard his wife calling him again.
“I’m 14 again now, and I shall not want the doctor, ” she said, softly.
Hearing this, he started running as 15 as he could towards the doctor’s. When he arrived there, he knocked at the door loudly enough to wake 16 around.
The doctor put his sleepy head out of the bedroom window and said, “Er? Who’s there? ”
“Oh, Doctor, ”Peter called up to him, “I’ve very 17 news for you. My wife 18
ill with a terrible stomachache. I was on my way to bring you to her, but she called me back to say the trouble had suddenly 19 her. So you need not come. Go back to 20 now, and sleep well!”
1. A. driver B. nurse
C. doctor D. child
2. A. terrible B. interesting
C. surprising D. wonderful
3. A. bed B. sleep
C. dream D. hospital
4. A. walking B. dying
C. aching D. sleeping
5. A. dressing B. wearing
C. raising D. working
6. A. very B. so
C. too D. quite
7. A. good B. bad
C. wrong D. poor
8. A. down B. off
C. on D. up
9. A. surprised B. afraid
C. certain D. worried
10. A. before B. for
C. to D. until
11. A. and B. but
C. so D. or
12. A. after B. in
C. before D. until
13. A. after B. when
C. before D. while
14. A. good B. wrong
C. all right D. right
15. A. fast B. slowly
C. hurriedly D. happily
16. A. everyone B. someone
C. no one D. doctors
17. A. good B. bad
C. necessary D. ill
18. A. fell B. stayed
C. grew D. failed
19. A. gone off B. missed
C. pleased D. left
20. A. your home B. your bedroom
C. your dream D. bed
查看答案和解析>>
科目:高中英语 来源: 题型:阅读理解
I walked into the grocery store, not really wanting to buy anything. I just wanted to stay there quietly — the pain of losing my 11 was still too great. And this supermarket held so many sweet 12 . He often came with me, and always bought me yellow roses.
Standing 13 the meat, I searched for the perfect small steak 14 my husband used to love it. 15 a woman came up beside me. I watched as she picked up a large pack of T-bone steaks, dropped them in her basket, 16 , and then put them back. She turned to go and once again 17 for the pack of steaks. She saw me 18 her and she smiled. “My husband loves T-bone steaks, but they are so expensive.”
“My husband 19 away eight days ago,” I told her, and 20 to control the sadness in my voice, “Buy him the T-bone steaks. And 21 every moment you have together.”
22 by my words, she placed the steaks in her basket and walked away 23 . But several minutes later she came towards me again, 24 a package in her arms. She was 25 the brightest smile I had ever seen.
As she 26 , I saw what she held. “These are for you,” she placed three beautiful yellow roses in my hands. I wanted to tell her what the roses 27 for me, but, unable to speak, only watching her walking away.
Looking down at the roses, I wondered 28 she knew it. Suddenly the answer seemed so 29 . I wasn’t alone. There were 30 many people caring for me and willing to help me. Just be thankful for what you have and who you are.
11. A. father B. brother C. husband D. son
12. A. groceries B. memories C. flowers D. dreams
13. A. by B. for C. beyond D. against
14. A. even if B. in case C. until D. since
15. A. Actually B. Suddenly C. Instantly D. Hopefully
16. A. missed B. suffered C. doubted D. hesitated
17. A. reached B. searched C. sent D. paid
18. A. following B. helping C. watching D. stopping
19. A. broke B. cleared C. moved D. passed
20. A. decided B. fought C. offered D. pretended
21. A. forget B. recover C. treasure D. imagine
22. A. Surprised B. Embarrassed C. Panicked D. Frightened
23. A. softly B. violently C. silently D. wildly
24. A. fastening B. carrying C. picking D. opening
25. A. covering B. rolling C. spreading D. wearing
26. A. approached B. turned C. continued D. bent
27. A. smelled B. tasted C. collected D. meant
28. A. what B. how C. whether D. when
29. A. accidental B. strange C. obvious D. funny
30. A. still B. just C. even D. also
查看答案和解析>>
湖北省互联网违法和不良信息举报平台 | 网上有害信息举报专区 | 电信诈骗举报专区 | 涉历史虚无主义有害信息举报专区 | 涉企侵权举报专区
违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com