Read the following article and select the best answer. Article: Just like children, baby animals spend countless hours at play. After studying animal play for many years, scientists recognize that young animal play is practice for adult behavior. Today this play is roughly divided into the following groups. Locomotor play refers to the movements animals carry out in their play. Running, leaping, turning, and kicking are some of the most common examples of locomotor play. An adult deer may run, leap, and twist to escape its attackers. Play movements like these surely make young animals _ Someday these skills might help save their lives. Moving forward slowly, attacking suddenly .and biting are examples of predatory play that help young predators prepare for a life of running after and taking hold of other animals. Wild cats, wolves, and bears are predators. It is very common to see these young animals play this kind of games which sharpen their skills and teach them about their strengths and limitations. For children, playing with toys is both fun and educational. It helps improve their hand and eye movements as well as develop hand skills to accomplish tasks. It is the same with animals. Young chimpanzees improve their hand skills while playing with sticks. Birds also play with things in ways that teach. Swallows drop and recover feathers in mid air. Diving suddenly to catch the feathers is good practice for catching flying insects. Social play helps animals learn how to behave when they run into other animals. And it teaches animals about communication. An animal gives signals to let another animal know it wants to play. Many animals give signals by showing a " play face" . In some ways this face is like a human smile; the animal holds its mouth in a relaxed and open manner. During play-fights, some animals may step backwards to signal that they are playing and not acting seriously. Until now, scientists have understood playful acts help prepare animals for their serious adult situations. But the numbers of playful species and examples of animal play... Question: The main purpose of the text is to _ . - ask us to take good care of wild animals - encourage us to learn more about animals - entertain us with interesting animal stories - show us something about animal behavior
show us something about animal behavior

Read the following article and select the best answer. Article: Residents along Australia's east coast awoke in the morning to an orange sky as winds swept millions of tons of red dust from the country's inland and dumped it on Sydney. Tanya Ferguson,living in Sydney,saw that the room was completely orange.She thought there was a bush fire.But when she went outside,the entire city was covered in a film of orange dust. "It was like being in the outback ,but it was right here in the city,"she said On that day,a big dust storm swept through Sydney.It covered the city in orange dust for about eight hours,making landmarks such as the Sydney Opera House and Harbor Bridge invisible. The storm affected the transportation system.Flights were delayed.Roads were busy as drivers struggled in the difficult conditions.Children and the elderly were told to stay indoors until the dust had cleared.Later strong winds blew it out to the sea and up the coast. No one was hurt in the storm,though health officials answered hundreds of calls from people with breathing difficulties.Emergency services responded to hundreds of calls about tree branches brought down by strong winds. Dust storms are common in the Australian outback,where the land is arid .But the storms rarely reach the coastal regions. Officials said it was the worst dust storm of the past 70 years.Air pollution levels were 15,500 micrograms of pollutants per cubic meter. "On a clear day the pollutants are around 10--20 micrograms per cubic meter,"said Chris Eiser of the NSW department of the environment. Experts said that dry conditions in the outback and strong winds caused the sandstorm. "Ten very dry years over inland southern Australia and very strong winds have combined to produce the storm,"said Nigel Tapper,an environmental scientist at Monash University, Australia. Question: The article is about_. - the causes of the major dust storm in Australian cities - different reactions to a dust storm in Australia - the damage caused by the big dust storm in Australia - the worst dust storm in Australia in the past 70 years
the worst dust storm in Australia in the past 70 years

Q: Read the following article and select the best answer. Article: Too much TV-watching can harm children's ability to learn and even reduce their chances of getting a college degree, new studies suggest in the latest effort to examine the effects of television on children. One of the studies looked at nearly 400 northern California third-graders. Those with TVs in their bedrooms scored about eight points lower on math and language arts tests than children without bedroom TVs. A second study ,looking at nearly 1000 grown-ups in New Zealand, found lower education levels among 26-year -olds who had watched lots of TV during childhood. But the results don't prove that TV is the cause and don't rule out that already poorly motivated youngsters may watch lots of TV. Their study measured the TV habits of 26-year-olds between ages5 and 15. These with college degrees had watched an average of less than two hours of TV per week night during childhood, compared with an average of more than 2 1/2 hours for those who had no education beyond high school. In the California study, children with TVs in their rooms but no computer at home scored the lowest while those with no bedroom TV but who had home computers scored the highest. While this study does not prove that bedroom TV sets caused the lower scores, it adds to accumulating findings that children shouldn't have TVs in their bedrooms Question: What is the researchers' understanding of the New Zealand study results? - Poorly motivated 26-year-olds watch more TV. - Habits of TV watching reduce learning interest. - TV watching leads to lower education levels of the 15-year-olds. - The connection between TV and education levels is difficult to explain
A: The connection between TV and education levels is difficult to explain

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Read the following article and select the best answer. Article: Introduction to Piano No matter what you do in life, it's always important to start with the basics. Taught by experienced musician Dennis Dykstra, this class will give beginning piano learners an introduction to the keyboard, keys, scales, chords, melodies, and note reading. This class is combined with adult class. Brinton ( Beg. , Ages 8-17 )...# 487919 Sat. , Apr. 13---Jun 1, 10:30 AM---12 PM $56 Residents / $112 Non-residents Guitar Lesson Learn basic chords, notes, and different strumming techniques. Strum your way to fun. Bring your own guitar. Classes are combined with youth guitar classes. Brinton ( Beg./ Int. , Ages 12-17 ) ...# 37623 Sat. , Apr. 13 --- Jun.1, 2 PM --- 3:30 PM $110 Residents / $220 Non-residents Hip Hop Culture & Modern Dance Hip hop is a dance form that has origins in New York's folk culture and has become popularized by the entertainment industry. The steps _ from tap, jazz & belly dance. The class will consist of clean hip hop music techniques, steps and a routine. Hamilton( Ages 6-12 )...# 38475 Tue. , Apr, 16---Jun 4, 7 PM --- 8 PM $18 Residents / $36 Non-residents Science of Magic and Fantastic Fliers This super science sampler introduces participants to two hot topics: magic and flight! In science of magic, participants learn the science behind illusions, mind reading and perform a magic escape! Amaze and amuse friends. In fantastic fliers, participants will fly through flight and aerodynamics ( ) basics. Discover the four forces that affect flight. Make and test various plane designs to see these forces in action! Not suitable for free or reduced fees. Jueau ( Ages 4-12 )... #370956 Mon. , Feb. 4, 5:30 PM --- 7:30 PM $80 Residents / $160 Non-residents Question: If Mary's son is 5 years old, she may choose _ for him. - Guitar Lesson - Science of Magic and Fantastic Fliers - Hip Hop Culture & Modern Dance - Introduction to Piano
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Science of Magic and Fantastic Fliers