Read the following article and answer the question. Article: Water skiing is a sport with many social, economic and health benefits to society. It is unique in that it is a sport where able and disabled persons, and people as young as 5 years and as old as 80 years of age can participate alongside each other. It is a sport that involves more than one person, and is a wonderful family activity that gathers members together for a day of fun at a favorite waterway. Anyone who has put on water skis can attest to its health benefits--it is a sport that demands and develops strength, agility and endurance. The sport includes several disciplines including slalom, tricks, cable, jump, ski racing, kneeboard, wakeboard, and barefoot, with each of these practiced for either recreational or competitive enjoyment. Safety Tips for Water-Skiers Don't take unnecessary risks while water-skiing. The following tips will help you safely enjoy this thrilling sport: ALWAYS have an observer in the boat. This is a legal requirement in many states. The boat driver cannot watch the skier and operate the boat safely at the same time. ALWAYS wear a Coast Guard approved Personal Flotation Device (PFD) designed for water skiing. Ski belts are NOT recommended. Your approved PFD will help keep you afloat. NEVER ski in rough water. High waves or a choppy sea will prevent the tow boat from maintaining a steady course and speed. NEVER ski after dark. It is dangerous AND illegal. Any boat traveling fast enough to tow a skier is traveling too fast to navigate safely at night. NEVER water-ski while under the influence of alcohol or drugs. Such activity is extremely dangerous because of the impairment to your judgment and ability to respond. A recent study conducted with expert skiers who were purposely drunk indicated that even their ability to ski was dramatically reduced. Use hand signals between the skier and observer. Agree before you start what each signal means so there is no confusion at a critical moment. Question: The purpose of the article is to _ . Answer:
OPTIONS:
- warn people of the danger of skiing
- tell how to enjoy water skiing properly and safely
- tell people, both young and old, to learn to ski
- tell people not to go skiing after drinking too much
tell how to enjoy water skiing properly and safely

Read the following article and answer the question. Article: All of us eat every day, but most of us don't understand nutrition . How much do you know about good nutrition? Are the following statements true or false? 1. People who don't eat meat can stay healthy. True. As long as people eat enough milk, eggs and meat alternates , they can get enough protein. 2. Fresh vegetables cooked at home are always more nutritious than canned vegetables. False. The difference depends more on how vegetables are prepared than whether they are fresh or canned. Vegetables cooked in too much water can lose a large quantity of vitamins. 3. Food eaten between meals can be just as good for health as food eaten at regular meals. True. Nutritional value depends on what types of food you eat, not when you eat them. Eating an egg or an orange between meals can _ a good diet. 4. Taking extra vitamins beyond the recommended daily allowances won't give you more energy. True. It's widely believed that extra vitamins provide more energy. But taking more than the baby needs doesn't make it function better, just as overfilling your gas tank doesn't make your car run better. 5. Natural vitamins are better supplements for the diet than _ vitamins. False. There is no difference. A vitamin has the same properties and specific chemical structure whether made in a laboratory or taken from plant or animal parts. 6. Older people need the same amount of vitamins as younger people. True. Older people need the same quantity of vitamins as younger people although they need fewer calories. Certain illnesses raise the requirements for some vitamins, but that is true for the young as well as the old. 7. Food grown in poor soil is lower in vitamins than food grown in rich sold. False. The vitamins in our foods are made by the plants themselves. They don't come from the soil. However, the minerals in a plant depend on the minerals in the soil. If you have answered these questions correctly, you can say you know much about food and nutrition by today's standards. But remember that nutrition is a growing science and... Question: The main purpose of the passage is to _ . Answer:
OPTIONS:
- list today's standards of some food and nutrition
- introduce what should be eaten and what not
- explain what is helpful to your health and what is not
- test our nutrition IQ by judging the problems listed

Answer: list today's standards of some food and nutrition

Read the following article and answer the question. Article: The average British 22 year-old has more than 1,000 online friends on sites like Facebook, compared to those in their fifties who have fewer than 20, according to a new study. The "Facebookgeneration gap" has been highlighted in a new piece of research which shows that the average 22 year-old claims to have 1,000 or more friends on sites like Facebook. People in their twenties have more than 50 times as many digital friends as those who are over 50 years old, despite the popularity of sites like Facebook with the older generations, says a study conducted by consumer research group Intersperience. The news comes during the same week Facebook's second-in command, Sheryl Sandberg, is visiting the UK to deliver a speech at the London School of Economics. Facebook's chief operating officer is going to speak about how the social web has transformed people's friendships and relationships. The survey found that there was a clear link between people's age and the number of online friends they have.The researchers found that those aged 13 to 16, have an average of 450 friends on social networks, with girls having slightly more friends that boys.People in their thirties tend to have between 100 and 200 friends, while those in their forties have between 50 and 100. However, those using sites such as Facebook over the age of 50, tended to have 20 or less friends.The oldest person surveyed was 70 years old. Paul Hudson, Intersperience's chief executive, said: "Our research underlines fundamental changes taking place in British society as a result of finally entering the digital age.Half of the UK population are on Facebook now.In a social media context, a 'friend' means something different to a 20 year old than to a 50 year old." He added: "Social networking activity is just one example of how different groups are adapting to the digital age at different paces.In this case, age is the determining factor - however in other instances it is not." Question: What's the main idea of the passage? Answer:
OPTIONS:
- Social networking activity
- The digital age
- "Facebook generation gap"--Facebook generation has more than 1,000 friends
- Changes taking place in British society
"Facebook generation gap"--Facebook generation has more than 1,000 friends