Read the article and select the best answer. Article: Few people would question the value of taking part in sports for young people. With proper training, supervision, protective equipment and techniques, and a proper emphasis on winning, sports can develop a healthy body and spirit and a life-long interest in being active and fit. Without such measures, childhood sports can lead to injuries and even paralysis or death. Even in the best conditions, no activity can be risk-free. But most serious dangers are preventable. Cyclists and football players can reduce their risks by wearing helmets, hockey players by wearing masks; basketball and tennis players by wearing eye guards; baseball players by wearing batting helmets. Besides, risks to individual players can often be found, and thus prevented, through a properly performed medical exam before a child plays. For accidents that may not be preventable, having an emergency plan and first-aid equipment, and someone trained to use the equipment, can be lifesaving. Still, each year, according to the American College of Sports Medicine, more than 775, 000 children under 14 are treated in emergency rooms for sports injuries, nearly half of them preventable. An estimated 300,000 athletes experience exercise-related head illnesses each year, and almost all of them should have been avoided. Further, from half to three-fourths of sports-related concussions are never even diagnosed; the injured are often sent back to play too soon and put at risk of another more serious brain-damaging concussion. To help reduce these risks, the National Center for Sports Safety, with the National Athletic Trainers' Association, offers a three-hour online safety course for coaches for $28 at www. SportsSafety. Org. Question: What can coaches mainly learn from the online safety course? Options: A: How to cure brain-damaging concussion. B: How to diagnose brain-damaging concussion. C: How to predict the possibility of brain damage. D: How to deal with the injured properly.
D

Read the article and select the best answer. Article: The south and east of the Great Lakes is famous for the huge amounts of snow it receives. When the snow starts to fall every year, people start discussing the phrase "lake-effect snow". Lake-effect snow which is influenced by the movement of cold air over the relatively warm water of the Great Lakes often comes in late autumn and early winter. Because of the at least 20 degrees' difference between the lake water and the overrunning air, it's easy to form huge amounts of snow. As the cool air crosses the water of Great Lakes, the lowest levels of the atmosphere begin to warm and pick up moisture. This newly warmed atmosphere is lighter than the cold air above it, so it starts rising. As the changed air continues to climb higher and higher, it finally meets much colder atmosphere which changes the moisture into water drops and ice, forming clouds. After this course repeats a number of times, the clouds become heavier and heavier, and then they are changed into snow and fall down. The most important point that decides the amount of snowfall is the direction of the wind. If the wind runs perpendicularly across the lake, there won't be plenty of time for clouds to develop. However, if the wind runs in the opposite direction, clouds will form easily. The longer the cold air travels over the lake, the more moisture it is able to produce, which leads to a greater amount of snow. The largest amount of the lake-effect snow was found across the U.P. of Michigan, the northwestern Pennsylvania and the far southwestern and northwestern New York, which are all along the south or east of the Great Lakes. It has been over 100 inches of snowfall in a winter season. Question: The passage is mainly about _ . Options: A: the influences of the lake-effect snow for local people B: the weight between moisture and atmosphere C: how the phrase "lake-effect snow" comes in New York D: how the lake-effect snow forms around the Great Lakes
D

Q: Read the article and select the best answer. Article: Millions of citizens throughout the central US are jumping into pools, sitting in the shade, and turning on their air conditioners as they try to beat the heat.With record-breaking temperatures and unbearable humidity attacking the central US.17 states from Texas to Michigan have all received heat advisories and warnings. "Even with the air conditioning on, it's 82 degrees Fahrenheit in the house," said North Dakotan Betty Smokov.'The heat is really unpleasant and sticky.'"I According to the National Weather Service, the heat is not likely to ease up soon. In Western Oklahoma, the heat is even worse.There, temperatures have frequently climbed to above 110 degrees over the past several weeks." _ " said Daryl Williams, a weather forecaster in Norman, Oklahoma.On Saturday night, the asphalt at a busy road in Enid, Oklahoma, crumbled due to the extreme heat. Across the area, citizens are keeping cool in many different ways.Cities like Chicago and Detroit are providing relief for their citizens by opening cooling centers for those without air conditioning in their homes.Others are heading to the water to cool down.But in some cases, the water itself needs cooling.Dwight Anderson, an amusement park owner in Omaha, Nebraska, had to put two tons of ice cubes into his park's swimming pools to lower the water's temperature from 88 degrees to 82 degrees. But not everyone is complaining about the heat.Sixty-five-year-old Detroit citizen Marcellus Washington enjoyed the weather as he walked along the Detroit River to stay cool."What a wonderful weather! It's a very pleasant day, " he said. Question: According to Marcellus Washington, the hot weather _ . Options: A: should be complained about B: brought him a lot of trouble C: would end up soon D: made him happy
A: D

(Question)
Read the article and select the best answer. Article: Life on-line can be a much richer experience when you aren't restricted to just written words and still pictures.Even if you're new to the Net,you've probably heard about multimedia on-line--listening to audio,watching animations and videos,even playing in three-dimensional space.Sound and movement make information come alive. To experience it,you'll need special pieces of software called plug-ins.The term "plug-in" refers to a small,add-on piece of software which extends the capabilities of your web browser,like Netscape Navigator or Microsoft Explorer,turning your computer into a radio or TV. When you arrive at a web page which contains a file requiring a plug-in which you don't have,you will usually receive a message asking if you want to get it by downloading it and installing it into your computer.Most of the time,the installation will be automatic. Occasionally,you'll run into a downloaded file which needs to be decompressed or un-zipped before installation.Once installed,plug-ins run automatically,without you having to do anything. Many multimedia controls still need to be obtained from the developer but are installed automatically. Shockwave is a good example of this.All you need to do is go to the Macromedia site and click on the link to install the ActiveX control.The rest happens automatically.The next time you go to a "Shocked" website,the Shockwave control loads and plays the movie. Most plug-ins and controls can be downloaded for free on the Internet,although not all will work with every system.Some of them,for instance,only work with Windows 95. Question: When we go to a "shocked" website a second time, _ . Options: A: we should go to the Macromedia site and click on the link to install the Active X control B: the shockwave control loads itself and plays the movie for us C: we will be asked whether to download the shockwave control or not D: we have to buy the shockwave control and load it
(Answer)
B