I'm taking a test and have to guess the right answer to the question after the article. Article: It is not always easy to understand inventions and new developments in science. To understand fiber optics , however, you can try an experiment. Put a drop or two of milk into the glass of water. Turn off the lights. Shine the light from your flashlight through the top of the glass at an angle of about 45 degrees. Put a piece of white paper against the glass when the beam of light is shining. Move the paper so you can see where the beam is coming out of the glass. You should see a spot of light. Some of the light has passed through the water and through the glass. You see it on the paper. You also see another beam going down into the glass. It is being reflected down into the glass. Next move the flashlight so that the beam is coming straighter down(30 degrees) into the water. You will see the same phenomenon: some of the light is reflected back into the glass. And some escapes out. Now move the beam of light from the flashlight slowly up until you cannot see any light escaping. This point is called the "point of total internal reflection." The word internal means "inside." All the light is staying inside the glass. There is no beam showing a bright spot on the white paper. All the light energy is inside the glass. The glass of milky water is like a strand of glass. A fiber optic tube is a bundle of long thin strands of glass, really many tubes. However, the principle is the same: at a certain angle, all the light energy that goes into the glass fiber comes out the other end. Light is energy. Sound is energy. Radio waves and electricity are both energy. They can all be changed into light, and as light they can all travel along a glass fiber. Light travels at the rate of 186,000 miles per second. Therefore, a message can travel that fast in a glass fiber. This is the principle, or law of nature, that makes fiber optics work. Question: The last step is to prove_. Options: A: no beam is shown on the white paper B: no light can be noticed inside the glass C: no reflection can be seen D: no energy is wasted
D
(Question)
I'm taking a test and have to guess the right answer to the question after the article. Article: A beggar followed a lady and asked her for some money. She refused, so he turned away sadly and said he must do what he had made up his mind to do. At this word, the lady was greatly frightened for she was afraid for his life. So she called him back and gave him a dollar. The beggar took the money, put it into his pocket, and thanked her a great deal. "You have saved me from a terrible fate," he said. The lady asked him what he meant. The beggar replied, "Madame, I have been begging all day, but only you have taken pity on me. Without this dollar you gave to me, I should have had to go to work now. Question: The best headline for the story is _ . Options: A: How to Beg B: Money before Everything C: Anything except Work D: Work for Money
(Answer)
C
Ques: I'm taking a test and have to guess the right answer to the question after the article. Article: Both of my parents worked full-time when I was a little girl, so my grandmother would stay at our house during the day. We would watch game shows in the living room. Our favorite was The Price is Right. We would call out our answers along with the contestants. When I got older and started going to school, we couldn't watch our game shows regularly. That was okay with me, though, because the one thing I liked better than watching game shows with my grandmother was helping her bake cakes. Watching her in the kitchen was amazing: she never seemed to need the recipes but everything she made tasted delicious. At first I would just sit in the kitchen and watch, even though I didn't understand what she was doing, As I got older, she let me help with the easy parts, such as measuring the sugar. The day she let me separate the eggs, I felt like I had found complete pleasure. At last, my parents decided that I could take care of myself, and my grandmother stopped coming over every day. The love of baking, however, stayed with me. I started baking by myself, and even if the cookies ended up burnt sometimes, more often they turned out pretty well. I tried out new recipes, and whenever I got to a _ part, I would call my grandmother for advice. Sometimes I would call her just to talk, too. I felt like I could talk to her about anything. My grandmother passed away ten years ago, but I still think of her every day. Last week, I found a recipe book she made for me. It included her recipes for brownies, cookies, and my favorite, lemon pie. As I looked through the pages, I thought I could hear her voice. She was the one who taught me not just about baking, but about life. Question: The passage is mainly developed by _ . Options: A: analyzing causes B: making comparisons C: following the time order D: examining differences
Ans: C
Question: I'm taking a test and have to guess the right answer to the question after the article. Article: When travelers think of an Adriatic cruise, scenes of Venice, Italy--its canals, bridges, piazzas, and stunning architecture--come to mind. It's one of the most popular cruise destinations in Europe. And for many, the sail-away from Venice, through its Giudecca Canal, is an awe-inspiring experience. Venice may be known as La Serenissima, or "the most peaceful," which, however, isn't entirely accurate these days. Venetians have been increasingly concerned about the impact of tourism and the potential for an environmental disaster off its shoreline due to the number of cruise ships that enter and exit its lagoon . That's why earlier last month, Venice announced a new policy to forbid the transit of cruise ships to the city via the Giudecca Canal. It's not that the city wants to shun the cruise industry altogether: It simply wants to force traffic further away from the landmarks along the shoreline. City officials say that most ships will now transit the Contorta Sant'Angelo Canal. Additionally, the city is _ the size of ships that can visit Venice, as well as the total number of ships that call on it on a daily basis. As of January 2014, Venice plans to reduce the visitations of larger ships (those that are 40,000 tons or heavier) by 20 percent. This effectively caps the number of ships that can enter per day to five. In November, ships heavier than 96,000 tons will not be allowed to enter Guidecca Canal at all. How the city plans to carry out the new five-ships-per-day rule remains to be seen and have yet to be announced. Which ships will be allowed passage? Will it be first-come, first-served? However they proceed, cruise line executives want their passengers to know that Venice will remain a regular port of call--even if the transit to and from the city must evolve. Question: The new policy was issued in order to _ . Options: A: stress the accuracy of Venice's fame for peace B: reduce the damage to Venice's enviironment C: depend less on the crusie industry D: limit the number of toursits
Answer:
B