(Q).
Two men from different worlds -- a BuzzFeed editor  from New York and a man in southern China known as "Orange Brother" -- have been friends after social media  helped them know each other over a stolen iPhone. The story of a guy named Matt in New York City who had his iPhone stolen last year has become famous on Chinese social media. Matt said his phone was stolen from a bar in the East Village last February. He bought a new phone and carried on with his life. It wasn't until this January, however, that he was going through his photo stream and noticed tons of photos that weren't his, including several pictures of an unknown man posing next to an orange tree. More photos of food menus, fireworks and something strange kept appearing in his photo stream in the following days. Matt later learned that his phone, stolen almost a year ago, had ended up in China and that the new owner was still logged  into his iCloud account . After Matt wrote about the cross-seas connection on BuzzFeed, a web user translated it and posted it to Weibo. He started getting tons of attention from people in China about the story. They thought it was romantic like a fairy tale and perfect for the spirit of the Spring Festival. In typical Chinese netizen -fashion, they were able to track down the information of "Orange Brother". He lived in Meizhou, Guangdong province. Web users loved this, and urged Matt to come to China and connect with his "long-lost brother". Orange brother made the first move. "Matt, I welcome you to come to Meizhou and try some local food," he said on Weibo, China's micro blogging platform. That post was "liked" over 12,000 times. Matt quickly accepted. Matt began learning Chinese, while Brother Orange posted videos of himself learning English. But when they finally met, the smiles and hugs said it all. Matt learned some information about his stolen iphone when  _  . A) he went through the magazine B) the new owner logged to his iCloud account C) Orange Brother connected with him D) Orange Brother used the stolen iphone to call him
(A).
B


(Q).
Turn on the radio. A program will come out from a broadcasting station miles and miles away. We know that sounds and music themselves couldn't travel that distance through space .There must be something that brings the program from the station. But what is this silent carrier ( ) ? This is known as radio waves. However, we can't see them or even hear them. In fact, nobody knows exactly what they are. Nevertheless( ) ,we know that  they are made by electricity . At the broadcasting station, people talk, sing, play musical instruments or make many other sounds. These sounds are changed into electricity. Then from the broadcasting aerial  of a tall tower , electricity sends out radio waves which travel  in all directions .And some of them reach your radio aerial. What happens next is a magical thing. The radio waves start an electric current ( ) in your aerial like the one that was first made in the broadcasting station . Finally, the loudspeaker in your radio set changes the electricity into sound .Therefore, you hear the program. ,. Electricity sends out radios waves from   _  . A) the broadcasting aerial of a tall tower. B) you radio set C) all directions D) a broadcasting station
(A).
A


(Q).
Satellites are an important part of our ordinary lives.For example, the information for weather forecasts is sent by satellite.Some satellites have cameras which take photographs of the Earth to show how clouds are moving.Satellites are also used to connect our international phone calls. Computer connections of the World Wide Web and Internet also use satellites. Many of our TV programs come to US through satellites.Airplane pilots also sometimes use a satellite to help them find their exact location. We use satellites to send television pictures from one part of the world to another.They are usually 35,880 kilometers above the equator.Sometimes we can see a satellite in the sky and it seems to stay in the same place. _ is because it is moving around the world at 11,000 kilometers an hour--exactly the same speed that the earth rotates.A satellite must orbit the Earth with its antennae facing the earth.Sometimes, it moves away from its orbit ,So there are little rockets on it which are used to put the satellite back in the right position.This usually happens about every five or six days. Space is not empty! Every week, more and more satellites are sent into space to orbit the Earth.A satellite usually works for about 10-12 years.Satellites which are broken are sometimes repaired by astronauts or sometimes brought back to Earth to be repaired.Often,very old or broken satellites are left in space to orbit the Earth for a very long time.This is very serious because some satellites use nuclear  power and they can crash into each other. What's the speed the earth rotates at? A) 35,880 kilometers per hour. B) 335,880 kilometers per hour. C) 11,000 kilometers per hour. D) 110,000 kilometers per hour
(A).
