Read the article and select the best answer. Article: How could we have thought so wrongly of as banana peel that it always hits the garbage? Utility of anything seems to be in the eyes of the beholder. The banana peel hasn't been an exception. What most of us looked at as waste was converted to a thing of utility by Prithwis Mukhopadlyay, a 14-year-old prodigy. This Bengali boy, nourished in the US, Lake Junior High in Woodbury, Minnesota, has come up with an idea to convert banana peels to biogas. . It's well known that almost any organic waste can be converted to biogas. But why biogas from banana peel has hit the news is because it produced five times as much biogas as manure , a commonly used source for producing biogas, in the experiments Prithwis conducted. He filled two airtight containers, one with manure and the other with banana peels. Then he mixed each content with water and connected them to empty jars via pipes to collect the gas produced. He placed a heater next to each jar and measured the gas collected for 60 days. His studies proved that banana peels produced five times more biogas than manure. This project titled 'Comparison analysis: Eco-friendly source of energy for the future,' earned him a spot in Discovery Channel Young Scientist Challenge. This weekend, the young whiz is to showcase his research work along with 40 other finalists at Washington. "Initially, I thought of doing a project that would reduce global warming. Things changed after I visited a biogas plant in a village in India during my summer vacations. It was an amazing experience," Prithwis says. Question: This article probably appeared in a _ magazine. Options: A: gourmet B: science C: computer D: fashion
B

Read the article and select the best answer. Article: Have you ever been to the beautiful country of Holland and its capital Amsterdam? Anyone who has traveled to Amsterdam would probably agree on one thing: Amsterdam's story is a tale of two cities -- one during the day and a completely different one at night. During the day, the largest city in the Netherlands sits quietly on the Amstel River.You can rent a bicycle, visit the Van Gogh or Anne Frank museum, or take a water taxi.But when the sun goes down, the partying begins.In the big clubs and in coffee shops, tourists gather to hang out, talk politics and smoke. Several areas of the city clearly show the two worlds that rule Amsterdam.And they're all within a short cab ride of each other.For example, Dam Square attracts daytime sightseers to its festivals, open markets, concerts and other events.Several beautiful and very popular hotels can be found there.And there's the Royal Palace and the Magna Plaza shopping mall. But at night party-seekers come to the square.Hip hop or funk music is heard there..So if you come, be ready to dance.The clubs don't shut down until 4 am. And while you're there, check out the various inexpensive ways to tour the city.Don't worry about getting lost.Although Dutch is the official language, most people in Amsterdam speak English and are happy to help you with directions.And you'll notice that half the people in the streets are on bicycles they rent. Amsterdam also has a well-planned canal system.For about 10 dollars, you can use the canal bus or a water taxi to cruise the "Venice of the North". The city has a historic past.One impressive place to visit is the Anne Frank House on Nine Streets.It was there that the young Jewish girl wrote her famous diary during World War II.Visitors can view Anne's original diary and climb behind the bookcase to the room where she and her family hid from the Nazis for two years. Question: The passage is intended to _ . Options: A: call up people's memories of World War II B: tell readers what A Tale of Two Cities is about C: instruct visitors what to do and see in Holland D: offer readers some information about Amsterdam
D

(Question)
Read the article and select the best answer. Article: Have you wondered why you have two eyes and why they are set close together on the front of your face? The reasons are simple and important to the way you see the rest of your world. Your eyes are like two small cameras. A camera catches an image of an object and records it on film.Similarly,when you look at something,each eye takes in what it sees and sends this image to the back of the eyeball.Because your eyes are set close together,they view the world from about the same height but from slightly different angles. Working as a team, the eyes send the images to your brain, which puts them together into a single, centered image. Seeing in stereo means seeing with two eyes working together,which is called stereoscopic sight.This allows you to view the world in three dimensions,or 3-D.Seeing depth helps you to judge the distance between you and the objects you see and to adjust to the changing angle at which you see something as you move closer to or farther away from it.If images are coming from only one eye, however,only two of these dimensions-height and width-can be perceived.A world seen with one eye is thus two-dimensional,as in a photograph. Now consider why your two eyes are on the front of your face.Think of other animals with this same arrangement.They are all animals that hunt,like lions and wolves.Their eyes face directly in front of them.This provides a field of sight about 180 degrees wide,which is called binocular sight.On the other hand,animals that are hunted have eyes on the sides of the head,which provides nearly 360-degree field of sight.In order to stay alive,they need to see things coming from the sides and from behind.However,without stereoscopic sight,they have difficulty determining how far a danger is. With sight both stereoscopic and binocular,humans share with animal hunters the ability to see from side to side and to accurately determine the distance.If you think it would be great to have another type of sight,perhaps with hundreds of tiny eyes like many insects do,think again!... Question: The author implies that "seeing in stereo" Options: A: is similar to the way cameras work B: is an ability humans are fortunate to have C: would be better for a wider field of sight D: helps people to have better sight than animals
(Answer)
B