Read the following article and select the best answer. Article: Doing homework not only can help children master the knowledge they have learned, but also can train their abilities of finishing the work alone, planning the time and doing the duties. But some children don't like to complete the work. Why? There are some reasons. Some children feel it is very difficult to do their homework, because they can't understand their teacher clearly, and can't follow their teacher's teaching process. Maybe there is something wrong with their _ But some children's intelligence is normal. They are even cleverer, but they don't listen to the teacher carefully. It is hard for them to sit well and pay attention to anything. It needs to carry on the attention centralized training to help the children. Some children love their teacher and then they like the subject. Their interest depends on the teacher who teaches them. So every teacher should be helpful and kind. It can make children love you and the subject you teach. So they can do their homework happily. Question: Some children find the homework difficult. Which reason is NOT right? - They can't understand their teacher clearly. - They can't follow their teacher's teaching process. - The intelligence of all the students isn't normal. - They don't listen to the teacher carefully.
The intelligence of all the students isn't normal.

Read the following article and select the best answer. Article: 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 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 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 ,"... Question: What is the main idea of the text? - Criminals live near where crimes occur. - Math could help police find criminals. - Crime records could be used to fight crime. - Computer software works in preventing crimes.
Math could help police find criminals.

Q: Read the following article and select the best answer. Article: Controlling traffic is a complex and high cost problem in many developed countries. It becomes more difficult and costly with the ever- increasing number of cars on the roads. But scientists and students at the CATT, at the University of Maryland are working to solve this problem. They are using simulation technologies to help government and private business control and react to changing traffic conditions. The online economics magazineForbes.comsays traffic congestion cost Americans $ 124 billion in 2014 and that number could rise to $ 186 billion by 2030. Bui scientists at the CATT lab are trying to reduce those costs. They are developing a system that helps traffic managers. planners, emergency workers and businesses plan and react better. Michael Pack is CATT director. He says the system is important to help emergency workers, or first responders,reach an accident area faster. The CATT Lab collects information from many sources, including roadside devices, GPS (global positioning system) equipment and wireless phones. About 60 students and 30 software developers observe traffic flow and manage the computer servers at all times. They also work to develop software and applications that can help traffic run smoother and safer, Some of them turn the information gathered into so-called "visualizations". These visual representations help emergency workers better understand what is happening. The center shares its findings with firefighters, police,Transportation departments and the military. They also share information with universities and transportation company. The technology company Google uses the data for its traffic-related websites. Michael Pack says, the information is then shared with anyone who wants to help traffic run more smoothly. Mr. Pack says the goal is to help develop an intelligent system of road signals that will communicate with each other and with vehicles on the road. Question: 1n which column of the newspaper can you read this text? - Daily life. - Science. - Education. - Exploration.
A: Science.

(Q).
Read the following article and select the best answer. Article: One thing the tour books don't tell you about London is that 2,000 of its residents are foxes , which fled the city about centuries ago after developers and pollution moved in . But now that the environment is cleaner , the foxes have come home , one of the many wild animals that have moved into urban areas around the world . Several changes have brought wild animals to the concrete jungles . First of all , air and water quality in many cities has improved as a result of the 1970s' pollution control efforts . meanwhile , rural areas have been built up , leaving many animals on the edges of suburban areas . In addition , conservationists have created urban wildlife shelters . " The number and variety of wild animals in urban areas is increasing , " says Gomez Jones . One of the country's largest populations of raccoons now lives in Washington , D.C. , and moose are regularly seen wandering into Maine towns . Peregrine falcons dive from the window edges of buildings in the largest U.S. cities to hunt for pigeons . For peregrine falcons , cities are actually safer than rural areas . By 1970 the birds had died out east of the Mississippi because the DDT , a widely used poison to kill insects , had made their eggs too thin to support life . That year , Tom Cade began raising the birds for release in cities , for cities afforded abundant food in the form of pigeons and contained none of the peregrines' natural enemies . " Before they died out , some migrated to cities on their own because they had run out of natural habitats , " Cade says . " To peregrines , buildings are just like natural habitats . " He has released about 30 birds since 1975 in New York , Baltimore , Philadelphia and Norfolk , and of the 20 pairs now living in the East , half are originally born in the city . " A few of the young ones have gotten into trouble by falling down chimneys and crashing into window glass , but overall their adjustment has been successful . " Question: . The following statements about peregrine falcons are true EXCEPT _ . - They died out east of he Mississippi because of the side effect of DDT - They tend to jump down from a height to hunt for food - They like running into glass windows or chimneys - Most of them have got used to living in the concrete jungle
(A).
They like running into glass windows or chimneys