Autism can take some time to diagnose. An autistic child's parents are usually the first to notice something different about their son or daughter. They may notice that their child behaves differently from other children the same age, for example, in the way he or she communicates with others. When unusual behavior continues, parents often consult a doctor. This is the beginning of a complex process of diagnosis. There are no medical tests for autism, and a child with autism very often has normal physical tests; consequently, it may take months or even years to diagnose the disorder. If autism is suspected, both the parents and the doctors begin a period of observation. Over time, through the use of interviews, questionnaires, and consultations with specialists, it may be determined that the child has autism.
Cheating on university entrance exams has been a major problem in China recently, so authorities have created new systems to try to stop students from cheating. Every year, millions of students across the country gather in large halls to take the test. At most test sites across China, students must pass through airport-style metal detectors to make sure they are not bringing in any electronic devices, including watches. Cameras have also been installed at test locations, broadcasting the testing to the offices of top local education officials. In some areas, hundreds of police are called in to patrol the testing.
Certain types of insects, such as the Asian long-horned beetle, have become a major problem as global trade has expanded. When goods and products are transported between countries by plane or ship, insects or their eggs often come along for the ride and are transported from their native habitats. The population of these insects can then grow too quickly. This can have a terrible effect on the environment, causing major damage to trees and food crops. The Asian long-horned beetle is an insect that is native to Japan, China, and Korea. The beetle makes holes in trees and eats the wood on the inside, eventually killing the tree. In Asia, the beetles are eaten by various birds and other insects, so most trees are safe. However, when the beetle was transported to North America on ships from China, it caused big problems. Since 1996, when it was first identified in New York City, the beetle has destroyed thousands of trees. Teams of environmentalists and scientists have been working hard to find ways to deal with the problem.
1
Interviews are not an effective way to diagnose autism.
There should be medical tests for autism.
Autism takes a long time to diagnose.
2
Chinese students must pass difficult exams to go to college.
China has increased security to stop cheating during exams.
Entrance exam halls in China are dangerously crowded.
3
Asian long-horned beetles cause major environmental problems outside of Asia.
Scientists do not know how to solve the problem of Asian long-horned beetles.
Some types of insects travel between countries more easily than others.