Jayson McCarthy, 12, was born without fingers on his left hand. That didn't stop him from being able to do many tasks. But Jayson could not grasp more than one object at a time. So Jayson 's father, Paul, created a Prosthesis , using a 3D printer. Now Jayson has fingers that open and close. "It was a do-it-yourself, father-and-son adventure," says Paul. When Jayson was a baby, his doctor advised his parents not to give him a prosthetic hand until he was in his early teens. "The doctor said Jayson should first learn to get full use out of the hand he was born with," says Paul. As Jayson got older, his father looked into _ a prosthetic hand, which can cost as much as $30,000. Paul found a more affordable solution. One day, Paul discovered a video on the Internet about Robohand, a prosthesis created with a 3D printer. He downloaded the free instructions and called Robohand's creators for advice. They told him all he needed was a 3D printer--which costs around $2,000--and some materials. Luckily, Jayson 's school had recently purchased a 3D printer and it offered to help Paul build the hand for Jayson n. "We used a soccer shinguard , cardboard , and tape. They cost about $10," says paul. With his new hand, Jayson can do things better. "I can help my mom more, because now I can carry two grocery bags," he says. Jayson 's father has already built several hands for Jayson. Jayson helps design each one. He says there's one thing in particular that he wants to do with a future prosthesis. "The goal," he says, "is to be able to tie my shoelaces ." Why did Jayson 's doctor disapprove of  his using a prosthesis in his childhood? A) The prosthetic technology was underdeveloped then. B) A prosthesis was very expensive at that time. C) To use the disabled hand was important. D) The original hand could do many tasks.
C

Angry Birds has become a worldwide gaming mega hit but how did this game come into existence? Rovio is the name of the company that created angry birds, however, it's not the first game they developed. Surprisingly they have been creating games for several years but had just never broken through into the mainstream the way they did with angry birds. The idea for the game came about in 2009 when the company was looking at different ideas for games which they thought could become popular. It was a simple idea _ from some sketches  of wingless and legless birds which were angry. The sketches caught on among the staff who in turn created a unique design which became angry birds. The pigs were added into the game later in the development as an enemy. During this period of development, pig flu was being heavily reported in the news which is where the idea for the pigs appeared. The basis of the game is very simple and is not unique to angry birds but has been seen in many other games previously. It's a simple physics/puzzle game. The player is given a slingshot and a limited supply of angry birds with different characteristics. Some birds are faster than others while others can be split into multiple birds. You control the trajectory  of the birds with the slingshot which launches them towards rickety structures containing your main enemy, the pigs. In order to advance to the next level you must eliminate  all of the pigs before your birds run out. Rovio has released several different versions of the game at this point. The original, Seasons, and Rio. Seasons is a collection of holiday themed versions of the game while Rio was a movie tie in for the movie Rio. All versions continue to be updated with new levels which are free to those who have previously purchased the game. According to the text, the game players   _  . A) must pay for this game--angry birds one level by one level B) only pay for once and then it will be updated freely C) should control angry birds to kill all the animals with pig flu D) will become angry easily for playing the game too much
B

Perhaps the most extraordinary   building put up in the nineteenth century was the Crystal Palace   which was built in Hyde Park for the Great Exhibition of 1851. The Crystal Palace was different from all the other buildings in the world, for it was made of iron and glass. It was one of the biggest buildings of all the time and a lot of people from many countries came to see it. Plenty of goods were sent to the exhibition from all parts of the world. There was also a great deal of machinery on show. Though in those days, traveling was not as easy as it is today, steamboats carried thousands of visitors across the Channel from Europe. On arriving in England, they were taken to the Crystal Palace by train. There were six million visitors in all, and the money from the exhibition was used to build museums and colleges. Later the Crystal Palace was moved to the South London. It remained one of the most famous buildings in the world until it was burnt down in 1936. What happened to the Crystal Palace in 1936? A) It caught a terrible fire. B) It disappeared suddenly. C) It went to the South of London. D) It was rebuilt.

A