Problem:OPTIONS:
- complain about some tourists' bad habits
- give suggestions on how to enjoy one's tour
- describe the great view of the Grand Canyon
- point out people's obsession with taking pictures

Read the following article and answer the question. Article: Pictures That Don't Last "YEARS ago when I was at the Grand Canyon, I remember someone coming up to the canyon's edge, taking a shot with their camera and then walking away, like 'got it - done', barely even glancing at the magnificent scene sprawling in front of them," Linda Henkel, a scientist at Fairfield University, US told Live Science. Henkel was surprised by how obsessed people are with taking pictures these days - before dinner, during friends' birthday parties, on museum tours and so on.You know people just like that, don't you? They keep taking pictures because they think that it helps record the moment, but as Henkel's latest study has just found out, this obsession may prevent their brains from remembering what actually happened, reported The Guardian. In her study, Henkel led a group of college students around a museum and asked them to simply observe 15 objects and to photograph 15 others.The next day the students' memory of the tour was tested, and the results showed that they were less accurate in recognizing the objects and they remembered fewer details about them if they photographed them. "When people rely on technology to remember for them - counting on the camera to record the event and thus not needing to attend to it fully themselves, it can have a negative effect on how well they remember their experiences," Henkel explained. But there is also an exception: if students zoomed in to photograph part of an object, their memory actually improved, and those who focused the lens on a specific area could even recall parts that weren't in the frame. So basically, this study is saying that constantly taking pictures can harm your memory.But shouldn't reviewing pictures we have taken help wake up our memories? This is true, but only if we spend enough time doing it. "In order to remember, we have to access and interact with the photos, rather than just amassing them," Henkel told The Telegraph.However, previous research has shown that most people never take the time to look over their... Question: The author mentioned Henkel's trip to the Grand Canyon at the beginning to _ . Answer:
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A: point out people's obsession with taking pictures

Problem:OPTIONS:
- In June and July.
- In August and September.
- In September and October.
- In May and July.

Read the following article and answer the question. Article: Venice is a great place in the world. People call it "City of Water" because it is built on the water just like some stone buildings floating on the water. There are more than 350 bridges in the city. It's in the southeast of Italy. You can hardly hear the sound of cars in the city. All transportation is by boat or on foot. And the most popular vehicle is gondola . You can see the beautiful sights and at the same time hear Italian operas on it. It's also a city of art and music. It played a very important role in the Renaissance . There are a lot of buildings there. Venice is a special and unique place in the world, so a lot of people come to visit it every year. It's better to visit the city in July, August, or September. And the people who come here will never forget this beautiful place. Question: When is better to visit Venice? Answer:
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A: In August and September.

Problem:OPTIONS:
- a house
- a huge stone
- a king's tomb
- the name of a museum

Read the following article and answer the question. Article: If you go to Egypt, you'll see a lot of pyramids. The biggest of all is the Great Pyramid. It is about 137 meters high and made of 2,300,000 big stones. Each stone weighs about two and a half tons .The biggest ones even weigh fifteen tons. It took more than 100,000 men twenty years to build it. Nobody can tell just how the men cut, carried and lifted the huge stones without our modern machines . The Egyptian kings told the people to build the pyramids for themselves. They thought they had tombs strong enough to keep their bodies well until they came back to life. But they never thought that about 5,000 years later their bodies would be on show in museums. Question: A pyramid is _ . Answer:
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A: a king's tomb

Problem:OPTIONS:
- Most pollution comes from the factories
- Chinese government pays little attention to it.
- Changing from 'coal to cleaner fuel is quite expensive
- If factories were closed, this would harm the economy and lots of people would .lose their jobs.

Read the following article and answer the question. Article: London used to be "foggy" for the same reason that cities like Beijing' or Chongqing are "foggy~ today. The "fog was in fact smog, a mixture of smoke and fog. In other words, it was made by air pollution In London, some of this pollution came from factories, but much of it came from the coal that people burnt in their houses to keep warm during the winter. By the 1950s, London's smog problem had become so bad that the-government decided to do something to clean the air. A new law was made and nobody could bum coal in any British city. Within a few years, the air became much cleaner. There were no more " _ ". . Many Chinese cities now face the same sort of' problem with air pollution that . London faced 40 0r 50 years ago. However, this problem is more difficult for Chinese cities to solve One reason is that more of the pollution comes from the factories, rather than from coal burnt in people's houses If these factories were closed, this would harm the economy and lots of people would lose their jobs. Another reason is that changing from coal to cleaner fuel , like gas, is quite expensive. However, the air in many Chinese cities is becoming cleaner and cleaner, as the government and people pay more and more attention to cutting down pollution . As a result,there are fewer "pea-soupers" in Beijing than there used to be. . Question: In China, air pollution is more difficult to solve Which of the following is not the reason?. Answer:
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A:
Chinese government pays little attention to it.