input: OPTIONS:
- Richard Wagner is not worth talking about
- Richard Wagner has made many people angry
- Richard Wagner has contributed much to opera.
- Richard Wagner is a very controversial man. Now, answer this question: Read the following article and answer the question. Article: Richard Wagner was a German musician has been a very controversial person, but he has gained great fame by writing opera, a form of performance combining singing, music on instruments, and drama. While he wrote excellent music, many people think his operas are too dark and serious, lacking the fun common in operas written before his time. Wagner, on the other hand, thought the opera of his time was too simple.He wanted to make opera a serious form of art that combined drama and music to tell deep stories that would have a strong effect on the audience. Some people thought Wagner's new kind of music was too different from the operas they were used to hearing.Wagner agreed with them.In fact, he didn't call his works "operas" at all, using instead a German word that means "Musical Festival" or "Musical play". While many people today still do not like Wagner's operas, they cannot deny that Wagner has had a lot of influence on opera as a form of art.Wagner invented the tradition of turning off the lights before starting a play.He also was the first person to make the whole audience sit down for an entire play.Today, almost all operas are performed in this manner. Wagner as a man was even more controversial than Wagner as a writer of music.He hated Jewish people, and made many people angry, which we would today think of as evil.Some would say he was a good musician, while others would say that he was a bad musician.But it would be difficult to say he was not an important person in music and in the world. Question: Which of the following best expresses the main idea of the passage? Answer:
A:
output: Richard Wagner is a very controversial man.

Read the following article and answer the question. Article: Cities need to put efforts to deal with pollution and clear the air. Chinese cities will need to put efforts to clear up the sky when a new department to improve regional air quality is set up by 2015, according to the latest plan released by the State Council. Besides the existing pollution control program for SO2, regional emission caps for other certain chemicals will be established in the three key air polluting areas-- the Yangtze River Delta, Pearl River Delta and the Beijing-Tianjin-Hebei region. Coal-consumption caps will also be tried out in some areas, according to the plan. "The plan is aimed at dealing with regional air pollution--such as acid rain and smog--which have become increasingly obvious in China in recent years and caused a severe threat to people's health," Zhang Lijun, vice-minister of environmental protection, said in an interview on Monday. "The air quality in a city affects the regions nearby because pollutants Can travel through the atmosphere," said Chai Fahe, vice-director of Chinese Research Academy of Environmental Sciences. "So efforts to reduce air pollution in a single city, targeting a certain pollutant will not be enough," Chai said. Zhang said, "The country's major industrial districts--the Yangtze River Delta, Pearl River Delta and the Beijing-Tianjin-Hebei region--have recorded more than 100 misty days annually in recent years." These three regions, home to at least 200 million people, occupy only 6. 3 percent of the country's area but consume 40 percent of the country's coal and produce half of its steel, according to official figures. Studies also show that the visibility in eastern regions of China has dropped by 7 to 15 km compared to that in the early 1960s, as a result of air pollution. Liaoning province, the Shandong Peninsula, Wuhan in Hubei province and its surrounding area, the Changsha-Zhuzhou-Xiangtan region in Hunan province, the Chengdu-Chongqing region, and the western coast of the Taiwan Straits are also listed as areas to carry out such regional... Question: . The main purpose of the passage is _ . Answer:

OPTIONS:
- to inform readers of the damage caused by air pollution
- to introduce the new plan to control air pollution
- to provide official figures of air pollution levels
- to point out the regions affected by air pollution

Answer: to introduce the new plan to control air pollution

Read the following article and answer the question. Article: What if you arrived home to find a delicious hot meal waiting for you,prepared by your very own kitchen robot? It might sound like science fiction,but professors at the university of Tokyo have taken the first steps toward making that scenario a reality.The team recently introduced a humanoid kitchen robot that can pour tea and other drinks into cups and serve them to guests.When teatime is over,the robot can also wash the dishes and put them away. In California,another interesting kitchen robot has been developed.Called the Readybot,it can pick up objects and either store them in cabinets or put them in the trash.It also carries a separate floor-cleaning robot that can operate by itself.Unlike the Japanese robot,Readybot is not humanoid.Instead,it looks more like a large box with arms and wheels. Readybot was created by engineers and designers who established a club called the Readybot Challenge.They believe that in the future millions of robots will be needed in homes to perform ordinary household tasks.Readybot is just the first step in their plan to create a robot that can tackle jobs not only in kitchens but in other rooms of homes and in offices as well. Clearly there are technological hurdles to overcome before robots can cook a complete dinner,and there are also many safety concerns.Not everyone(especially parents)would be comfortable with the idea of robots in their house,manipulating hot pans and sharp knives.The European Commission recently funded a project to study these concerns. Question: What does the writer imply about the Japanese robot? Answer:
OPTIONS:
- It performs fewer functions than readybot can.
- it looks more like a person than Readybot does.
- It speaks more languages than Readybot does.
- It costs 1ess to manufacture than Readybot does.

Answer:
it looks more like a person than Readybot does.