Read the following article and select the best answer. Article: An annoying problem for humans, who like to boast about all the distant planets and moons we have explored, is that we've never taken a good look right under our noses. The inside of the earth is relatively close, but how can we get there? The deepest oil well enters a mere six miles into the crust (the center of the earth is about 4,000 miles deeper). Russian scientists dug the deepest hole in Siberia, but bottomed out at about 7.5 miles below the surface. The Mohole project, a U.S. plan in the 1950s, called for drilling a hole 25 miles down to the boundary between the hard rocks of the crust and the soft mantle . Sadly the project involved government supporting. It gets harder and harder to drill deep into the earth because rocks get softer and softer. Hard but easily broken at the surface, rocks become plastic at depth, and the pressure caused by the weight of the overlaying crust --- about 52,800 pounds per square inch at a depth of ten miles, makes further drilling impossible. What little we know about the inside of the earth (like the fact that there's a crust, a mantle, and a core) comes from indirect evidence, such as the analysis of earthquakes. So maybe it's time for a thorough new method to explore the earth's inside. Scientist David Stevenson says we should forget about drilling holes. Instead, we should open a crack . Stevenson suggests digging a crack about a half mile long, a yard wide, and a half mile deep (not with a shovel) but with an explosion on the scale of a nuclear bomb. Next, he'd pour a few hundred thousand tons of molten iron into the crack, along with a robot. The iron, thicker than the surrounding crust, would move downward at about 16 feet per second, carrying the robot with it and opening the crack deeper and deeper. The iron mass would drop for about a week and 2,000 miles to the outer edge of the earth core, the robot sending out data to the surface. Stevenson compares his idea to space exploration. "We're going somewhere we haven't been before,"he says. "In all... Question: What might be the most suitable title for the text? - An Annoying Problem for Humans - To the Center of the Earth - The Mohole Project - David Stevenson's Proposal
To the Center of the Earth

Read the following article and select the best answer. Article: If you think about World Heritage Sites, you probably think of places associated with ancient art and culture, historical building and monuments. And of course, many of these are on the World Heritage List .But the WHL contains a lot of sites that are not so obvious. Let's look at a few of them. Robben Island in South Africa This island was used through the centuries as a prison, a hospital and a military base. But it's probably the most famous as a prison for political prisoners in the twentieth century. Nelson Mandela was one of its residents. The WHL says it represents "the victory of democracy and freedom over oppression and racism " The Darjeeling Himalayan Railway in India This railway was opened in 1881 and is still operating today. It crossed a difficult area of mountain landscape and it is a great example of railway engineering. The WHL says that it is "the first, and still the most outstanding example of a hill passenger railway." Borders of France and Spain This is an area of great natural beauty and the mountains have many interesting geological formations. But it is also an area of small farms. Surprisingly, people there still use a type of agriculture that used to be common in mountainous areas of Europe but has almost completely disappeared in modern times. Alto Douro, Portugal This is an area in the North of Portugal where wine has been produced for thousands of years. The WHL says that this long tradition of wine making "has produced a cultural landscape of outstanding beauty that reflects its technological, social and economic evolution". Rio Platano Reserve, Honduras The WHL says that this site is "one of the few remains of a humid tropical forest in Central America". It's a mountainous area on the Caribbean coast with many different species of plants and animals. The people who have always lived there still have the same traditional life-style. Simien National Park, Ethiopia Simien National Park was one of the first sites listed in 1978. It is one of the... Question: Which of the following sites was listed in WHL for political symbol? - Borders of France and Spain - Simien National Park, Ethiopia - The Darjeeling Himalayan Railway in India - Robben Island in South Africa
Robben Island in South Africa

Q: Read the following article and select the best answer. Article: Yu Pengnian is an 88-year-old real estate Chinese businessman. He amassed a fortune of $1.3 billion dollars during his career but instead of keeping the money and living like an emperor, he decided to give it all away. All of his fortune will be spent on helping poor Chinese students get a better education. And Yu isn't the only super-rich person in China who has this spirit of giving. Chen Guangbiao, a Jiangsu recycling tycoon, has given millions of dollars to charity and promises to give all of his money to charity when he dies. Yu and Chen are among the many businessmen who have become prosperous during China's economic rise. An American business magazine, Forbes, estimates that there are 117 billionaires in China and hundreds of thousands of millionaires. What sets Yu and Chen apart from the rest, though, is their tremendous generosity(,) when it comes to donating money to charity. Last week Bill Gates and Warren Buffett came to Beijing. Gates and Buffett, two of the world's richest men, are also the world's biggest philanthropists. They invited fifty of China's richest people to have dinner with them and talk about the spirit of giving. At first, only a few people accepted their invitation. It seemed some of the invited guests were afraid that Buffett and Gates were going to pressure them into giving their wealth to charity. A lot of people are angry at the billionaires who are not willing to give away their fortunes. They _ hem for being miserly and not caring about the poor and the less fortunate. But I think this criticism is wrong. A gift, any gift, should come from the heart. Instead of criticism, these reluctant billionaires should be encouraged to follow the examples of Yu Pengnian and Chen Guangbiao. Encouragement is always a better strategy than criticism. As we say in English, "You can catch more flies with honey than with vinegar." Question: According to passage, why does the author end the passage with the English saying "You can catch more flies with honey than with vinegar"? - The author wants to tell us that flies prefer honey to vinegar. - The author wants to prove that encouragement is always a better strategy than criticism when it comes to charity. - The English saying expresses the main theme of the passage. - The author wants to criticize those billionaires who are not willing to give away their fortunes and not caring about the poor and the less fortunate.
A: The author wants to prove that encouragement is always a better strategy than criticism when it comes to charity.