user: Read the following article and select the best answer. Article: Researches at Johns  Hopkins University's. Applied Physics laboratory  ( APL)  in Laurel , Maryland have designed a new human-like robot, Its name is Robo Sally. The machine can be controlled from a distance and can he used to do work that is dangerous for human beings. Roho Sally has two long arms with human-like hands. She can use her fingers to pick up  small objects .examine them in detail and do most things that human hands can do Each finger  contains a tiny motor capable of squeezing 20 pounds of pinch foree ,.enough to defuse a bomb  under the direction of an operator. She sits on a metal base with wheels that let her move around. turn in tight spaces and climb over small objects, . Mike McLoughlin is the main investigator for the Applied Physics Laboratory's Prosthetics  Program. "The purpose of that program is to develop prosthetic arms that have all the capability  of your natural arms .and you do all the complex motions that we can do with the natural arm- with the robot. " It was a difficult job. Mr. McLoughlin says the device had to have many small motors to.  have the ability to do what a human hand does; It  also needs to have human-like strength. The  thumb was especially difficult because it permits the hand .to hold objects. And everything had.   to fit into a space about the size of a human hand. The next problem  .he says .was to figure out how to control the artificial hand. " So we had   to figure out how to make the connection between the brain and this arm. For search-and-rescue duties.Roho Sally will be operated by a human being using a wire- less machine that is far from the robot. The operator will also wear special gloves and glasses.  The glasses permit the operator to see the robot's hands .even though they are far away. Mr. McLoughlin says this kind of robots could be used in what he calls "dull , dirty or dan- gerous" situations where fine human finger movements are required. He says the technology is  not ready for everyday application .but he predicts that within five years... Question: What can we learn ahout the prosthetic arms according to the passage? - They are expected to function as well as natural ones. - They have many large motors controlled by robots. - They have human-like strength to control the robot. - They are connected with human brains.
They are expected to function as well as natural ones.
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Read the following article and select the best answer. Article: I left home to support my sister in her efforts to present a music festival. She lives on the other side of the world, and I went to visit her, not wanting to leave and feeling like I was leaving home against my will. However, I wanted to show her my support because she is my only sister. So I boarded the plane in mid-August, and hated the long flight. I arrived, tired and hungry. I had left my husband of 2 years, alone, in our old New Orleans house. I was all set and ready to perform for my sister for the music festival on Sunday morning when I received a call from Chicago. The hurricane was predicted to hit our city, and many people had already _ , but my husband chose to stay behind. He could not get a call to me on the other side of the world, but he could call his cousin in Chicago. He gave his cousin a message for me, that he would be just fine, and not to worry. As the day wore on, I finally took the stage in front of hundreds of Europeans, and I realized, thanks to CNN, that New Orleans was under water. I performed, hoping that my husband would survive. And I performed perfectly. The audience stood and applauded. I left the stage and went straight to the TV. I saw the street sign near my home, of Humanity Street, but nothing below it, except water. In the days that followed, I found out that my house, my car, my clothes, my furniture, everything that I'd left behind was gone...but not my husband. He survived by riding on the rear bumper  of a VW bus, holding on to the overhead luggage rack, in the pouring rain, down the highway from New Orleans, half-way to Baton Rouge. The rest of the journey was a long walk, but he survived. By the first week of September, I flew back to the Baton Rouge airport, and hugged my husband. Since then, our relationship has grown deeper; we have completely rebuilt our house, bought a new car, bought new furniture and new clothes and joined an inspirational, spirit-filled community. Question: What might be the title for the passage? - Lost it All, Gained Even More - Once Gone, Never Returned - Caught in the Hurricane - Trapped in a Dilemma
Lost it All, Gained Even More
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Read the following article and select the best answer. Article: Many people say dolphins are very intelligent. They seem to be able to think, understand, and learn things quickly. But are they smart like humans or more than cats or dogs? Dolphins use their brains differently from people. But scientists say dolphin intelligence and human intelligence are similar in some ways. How? Fact 1: Talk to me Like humans, every dolphin has its own "name". The name is a special whistle. Each dolphin chooses a specific whistle for itself, usually by its first birthday. Actually, scientists think dolphins, like people, "talk" to each other about a lot of things, such as their age, their feelings, or finding food. And, like humans, dolphins use a system of sounds and body language to communicate. But understanding their conversations is not easy for humans. No one speaks "dolphin" yet, but some scientists are trying to learn. Fact 2: Let's play Dolphins are also social animals. They live in groups, and they often join others from different groups to play games and have fun--just like people. In fact, playing together is something only intelligent animals do. Fact 3: Fishermen's helper Dolphins and humans are similar in another way: both make plans to get something they want. In the seas of southern Brazil, for example, dolphins use an interesting strategy to get food. When fish are near a boat, dolphins show signs to the fishermen to put their nets in the water. Using this method, the men can catch a lot of fish. What is the advantage for the dolphins in doing so? They get to eat some of the fish. Question: What does a dolphin often use as its "name"? - A body language. - A special whistle. - Its feeling. - Its age.


assistant: A special whistle.
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