Read the following article and select the best answer. Article: As they migrate, butterflies and moths choose the winds they want to fly with, and they change their body positions if they start floating in the wrong direction. This new finding suggests that insects may use some of the same methods that birds use for traveling long distances. Scientists have long thought that insects were simply at the mercy of the wind. Fascinating as their skills of flight are, migrating behavior has been difficult to study in insects because many long distant trips happen thousands of feet above ground. Only recently have scientists developed technologies that can detect such little creatures at such great heights. To their surprise, though, the insects weren't passive travelers on the winds. In autumn, for example, most light winds blew from the east, but the insects somehow sought out ones that carried them south and they positioned themselves to navigate directly to their wintering homes. Even in the spring, when most winds flowed northward, the insects didn't always go with the flow. If breezes weren't blowing in the exact direction they wanted to go, the insects changed their body positions to compensate(, ). Many migrating birds do the same thing. The study also found that butterflies and moths actively flew within the air streams that pushed them along. By adding flight speeds to wind speeds, the scientists calculated that butterflies and moths can travel as fast as 100 kilometers an hour. The findings may have real-world applications. With climate warming, migrating insects are growing in number. Knowing how and when these pests move could help farmers decide when to spray their crops. Question: It is not easy to study the migrating behavior of the insects because _ . - the little creatures can fly very fast - their flight is long and high above ground - the wind's direction is hard to forecast - they have no regular migrating courses
their flight is long and high above ground

Read the following article and select the best answer. Article: Women turn to online shopping Women have jumped ahead of men for the first time in using the Internet to do their holiday shopping, according to a study published last week in the US. For years men have been more likely to shop on the Internet than women, but during the 2004 holiday season, 58 percent of those making online purchases were women. "It shows how mainstream the Internet is becoming," said Lee Rainie, director of the Pew Internet and American Life Project group, which carried out the study. Rainie said it was only a matter of time before women shoppers caught up with men. This is because women traditionally make decisions about spending. Users were more likely to shop online to save time. Internet users between the ages 18 and 29 were responsible for some of the most dramatic increase in the online gift-buying population this time around. However, three- quarters of the US Internet users did not buy holiday gifts online in 2004. They worried about credit card security, or just compared online prices with off-line prices, then dashed off to the shops to get the best deals. " But even if shoppers don't buy online , websites are becoming promotion tools for stores," said Dan Hess, vice president of ComScore Networks Inc. Hess said that actually most stores' websites can make customers fully believe the security of their credit card numbers. And most are able to ensure that gifts arrive on time. " It's all about making the shopping experience more efficient, more reliable and more comfortable." Hess said. Question: What can we know from the passage? - American people only gift in holidays - Shopping online is fun for women. - Shopping off-line provides better service. - Young people like to do gift-shopping online.
Young people like to do gift-shopping online.

Q: Read the following article and select the best answer. Article: Young adult filmmakers all hope to show their works in international festivals like Sundance and Toronto. But what about young filmmakers who aren't in film school yet and aren't, strictly speaking, even adults? They are at the heart of Wingspan Arts Kids Films Festival, tomorrow, in a setting any director might envy: Lincoln Center. Complete with "red carpet" interviews and various awards, the festival has much in common with events for more experienced moviemakers, except for the age of the participants: about 8 to 18. "What's really exciting is that it's film for kids by kids," said Cori Gardner, managing director of Wingspan Arts, a nonprofit organization offering youth arts programs in the New York area. This year the festival will include films not only from Wingspan but also from other city organizations and one from a middle school in Arlington, Virginia. "We want to make this a national event," Ms. Gardner added. The nine to be shown range from a Claymation biography of B.B. King to a science fiction adventure set in the year 3005. "A lot of the material is really mature," Ms. Gardner said, talking about films by the New York City branch of Global Action Project, a media arts and leadership-training group. " is about the history of a family and is about the dangers of secondhand smoke." describes young immigrants' feelings of both belonging and not belonging in their adopted country. The festival will end with an open reception at which other films will be shown. These include a music video and full-length film whose title is . Question: Wingspan Arts Kids Film Festival _ . - is organized by a middle school - is as famous as the Toronto Festival - shows films made by children - offers awards to film school students
A: shows films made by children

Read the following article and select the best answer. Article: Not long ago, many people believed that babies only wanted food and to be kept warm and dry. Some people thought babies were not able to learn things until they were five or six months old. Yet doctors in the United States say babies begin learning on their first day of life. The Eunice Kennedy Shriver National Institute of Child Health and Human Development is a federal government agency. Its goal is to determine which experiences can influence healthy development in people. Researchers at the institute note that babies are strongly influenced by their environment. They say a baby will smile if her mother does something the baby likes. A baby learns to get the best care possible by smiling to please her mother or other caregiver. This is how babies learn to connect and communicate with other people. The researchers say this ability to learn exists in a baby even before birth. They say newborn babies can recognize and understand sounds they heard while they were still developing inside their mothers. Another study has suggested that low birth weight babies with no evidence of disability may be more likely than other children to have physical and mental problems. American researchers studied almost five hundred boys and girls. They were born in, or admitted to, one of three hospitals in New Jersey between 1984 and 1987. At birth, each child weighed fewer than two thousand grams. The boys and girls had an average age of sixteen at the time of the study. They were asked to complete intelligence and motor skill tests in their homes. Their test results were compared with those of other children their age. Question: What will be mentioned in the following passage? - The evaluation method of the tests. - The cause of low birth weight babies. - The result of the intelligence and motor skill tests. - The evidence proving babies began to learn before birth.
The result of the intelligence and motor skill tests.