The man who learned to fly It is publicly accepted that it was the Wright brothers that invented the plane, but actually George Cayley knew how to make a plane a century before the Wright brothers took off. If only he'd got the internal combustion engine to work. During the 18thand 19thcenturies, scientists and the public all believed that it was only impossible to fly using an artificial wing, but an act of silly deed to suggest that you could. This did not discourage the English gentleman scientist George Cayley, even though his contemporaries --- including his own son--- were embarrassed by his efforts. In 1799, Cayley carved a silver disc with one side bearing a design for the world's first aeroplane and the other illustrating the earliest published description of the aerodynamic forces on the wing that enable a plane to fly. His three--part essay Aerial Navigation, published in 1809 and 1810, was greeted with skepticism by his contemporaries. But Cayley "didn't give a rat's ass" about what they all thought, according to Richard Dyde of York University in Ontario, Canada, author of The Man Who Discovered Flight--- and with good reason. He had completed a series of experiments to back up his theories and "was convinced that everyone else was wrong". Cayley constructed increasingly excellent model flying machines, and finally invented a full-scale glider, which was flown in 1853 by his grandson, George. This pioneering work would prove inspirational to Orville and Wilbur Wright, who made the first controlled and sustained heavier-than-air human flight 50 years later. Their success was dependent on the recent invention of the internal combustion engine--- a device which Cayley, having realized its great importance, had spent many fruitless years trying to develop. How many years later was George Cayley's glider flown after he first designed a plane? A) A century. B) Fifty-four years. C) Ten years. D) More than a hundred years.
B
Today, many people use plants from other places to design their yards. Well, do they have any influence on animals living nearby? As we know, plants supply food for things like insects and plant-eating animals. In turn, birds and meat-eating animals feed on these insects and plant-eating animals. It is easy to see how important plants are. Although foreign plants may look beautiful, they can cause problems when there are too many of them. I live in Virginia, USA, and sometimes see a plant--commonly known as Kudzu--that seems to cover everything in the area, even climbing over whole trees and houses. Kudzu is an unbelievable plant since it grows very fast. It was first brought to the United States from south-east Asia around the 1870's as a crop that farmers could grow. However, Kudzu quickly came to be considered harmful throughout the southern United States. Since Kudzu grows fast in many different environments, it can completely cover areas of land quickly. The plant is also not eaten by any insects or birds in the United States so it can grow unchecked. Kudzu can cover trees, bushes, and even houses. It costs the United States 500 million dollars a year to just keep Kudzu from growing too fast. The plant is a perfect example of what scientists call an invasive species, which grows more quickly than other native plants. All foreign plants have the possibility to spread quickly. Not only are they costly, but planting them in gardens actually takes away food from insects. If everyone filled their garden with plants native to where they live, many lovely butterflies and other native creatures would be attracted to their backyards! So, take a look out of your window -- how does your garden grow? Which of the following is TRUE of Kudzu? A) It served as food at first in America. B) It came to America in the early 19th century. C) It grows fast in Asia, but slowly in America. D) It is often eaten by insects or birds in America.
A
Q: We need your help -- actually, we all need each other's help! Although dinner might be just about our only daily opportunity to sit down together, catch up and eat a healthy meal, we tend to be too busy/stressed/tired (you can throw in a dozen other reasons) to cook ourselves. The kids are shrieking, everyone is starving and your fridge contains nothing but a few squishy squashes and a limp carrot. So what do we all do? We give up and give in to some awful food choices that someone in some far-off factory or fast-food restaurant "cooked" without one bit of love in their heart. And this is making us sick and fat and it's killing us. Why not try HOME COOKED SUNDAYS? The idea is simple: Use the one day of the week we do have time to cook -- Sundays. Let's make it a fun bonding activity -- and a wildly productive and delicious one, too. Let's use Sundays to shop, prep and cook with our families (hey, everyone can pitch in!), and then enjoy a great sit-down dinner at the family table. Let's turn this into a cherished weekly ritual . To get people excited and cooking again, Kirstin Uhrenholdt (she is Danish and -- no kidding -- grew up on a fruit farm) and I wrote The Family Cooks, a cookbook filled with easy, healthy and tasty recipes. We included lots of tips and tricks to avoid an unhealthy week -- including how to avoid junk food hazards in the supermarket, and ways that small and big kids can help you cook. We know you have good ones, too. So let's share all our great ideas and inspire others to give it a try, because we know that Home Cooked Sundays will guarantee calmer and healthier weeknights -- and give us the perfect way to start the week connecting with our kids while teaching them a thing or two about health and happiness. Will you help make home-cooked meals synonymous with Sundays? Share your ideas, inspirations and best tips on how you prep your fridge on Sunday for a smooth week ahead. Send us your three best tips and favorite go-to recipe for Sunday dinner. We will post ours, and together, we'll... The author advises readers to _ . A) attend a cooking competition B) start cooking on Sundays regularly C) buy the cookbook The Family Cooks D) spend more time with families on Sundays
A: B
(Question)
*AmericanMalinois We have extra large,strong and healthy puppies born on May 29,2014 and raised on 2.5 acres fenced in Williston Highlands by American Malinois Foundation. They are not caged or home-raised Malinois.They have taken swimming training and full exercise routine with their parents to make sure they know how to guard themselves and other things this breed can do.I work specifically on the ones which have service dog qualities. My ideal buyer would be a disabled person in need of a mobile or medical alert service dog.The American Malinois is a working dog and is most content to bond with one person and only follow this person' s orders.Potential owners should be familiar or experienced with this breed. My fee represents the cost of feeding,grooming,boarding,training,medical and registration with the CKC(Continental Kennel Club).Puppies will have health certificates from vets. To see videos of the puppies and their parents, go to YouTube and search: American Malinois Foundation. *MiniSchnauzers We have 4 males and 4 females.Our puppies come with a health guarantee.They are trained and all of them have great personalities and would be a great addition to any home.These puppies are for pets only.To keep our bloodlines pure, we do not allow our puppies to be bred. We have been breeding for over 13 years and we only breed Mini Schnauzers. They are the best dogs. They are very smart. We will not ship our puppies. We have had people drive over 1500 miles to purchase our babies. Which of the following can be used to describe Mini Schnauzers? A) Socialized and cute. B) Clever and brave. C) Healthy and clever. D) Professional and strong.
(Answer)
C