user: Read the following article and answer the question. Article: Do you have any friends? What do you think of friendship ? Here are some opinions from Ann,Pedro,Crystal and Roy. Ann comes from Japan!She likes to have friends who really care about her. She thinks a true friend won't leave her alone when she is in trouble. Besides,she hopes they can teach her English. Pedro is from Canada. He thinks that friendship means giving. If you want others to care about you,you must care about them first. Crystal was born in China. She has the same opinion with Pedro. The real meaning of friendship is giving others something instead of thinking about taking anything back. What about Roy from Japan? He doesn't care about the looks of his friends. In his opinion,a sincere heart   is more important than looks. If you are in the same country with Roy,you can write emails to him. Question: What are the people above talking about? Answer:

Answer: The meaning of friendship.


Read the following article and answer the question. Article: In the summer of 2011 my friend and I decided to go to Italy for a holiday and we decided to travel there without going through a travel agency. You know, you would not be seen among the tourists and lose lots of chances to get familiar with the country more closely. We started to think over our trip and tried to come up with a free tour to Italy. The trip was not very long but it was so exciting that we never forgot. We look forward to going there again! Of course, we spent lots of time arranging the trip, but it was well worth it! Of course I was afraid that something would go wrong and I was especially worried about my visa, but everything went quite well in the end. The most difficult part was getting a visa without an invitation. In the Italian consulate  , one must hand in some official paper proving that one has a hotel booked for oneself in order to get the visa. Then we had to solve the ticket problem. Airlines often sell cheap tickets and we bought ours far earlier. The next step was to book a hotel. We finally booked a hotel about 30 km away from the centre of Rome and it was the perfect choice for our trip. Every day we took a train that carried us to the centre of Rome. Our big house was among the forest. The beautiful views, nice hosts, comfortable living conditions made us happy to no end. Besides this, we were very lucky that our hostess was Russian. She gave us a lot of advice that was of great use. She told us what transport to choose and where the best places to go. Don't be afraid to arrange your trip by yourself. It's not difficult! The only thing I'll say right now is that we really enjoy travelling by ourselves. We walked with a map and a guide-book wherever we wanted to go and we even met some of our countrymen on the way just two or three times. So, if you're also planning a "single" trip, don't forget to take a Russian-Italian phrasebook as people in Italy prefer to speak in their local language. Question: The hardest thing in preparing for his Italian trip was   _  . Answer:

Answer: getting a visa from the Italian consulate without an invitation


Read the following article and answer the question. Article: If we are driving a car or crossing a street, we will stop when the traffic lights turn red. Why do we use red rather than other colors? As we know, scattering   happens when light goes through the air. For the same media, if the wavelength   is long, the scattering will be short. If the wavelength is short, then the scattering will be long. Of all light we can see red has the longest wavelength, so the scattering is the weakest. That means the red light travels far. In fact, it travels farther on rainy days. Using the red light can help drivers in farther areas see the lights. It helps drivers slow down or stop in time. If drivers don't see the red light until they are close, they may not be able to stop the car in time. An accident may happen. Red can also excite people. We can act more quickly when we see the color red. In a word, red light helps drivers stop in time and help prevent accidents. Question: The passage mainly tells us   _  . Answer:

Answer:

assistant: why we use red traffic lights