Read the following article and select the best answer. Article: The US will seek to expand its own oil production in an attempt to reduce dependence on imported oil and bring down fuel prices , President Obama says . New contracts for exploration will be signed in non-protected areas of Alaska and in the Gulf of Mexico. In his weekly speech , the President insisted the US could reduce its need for imported oil and improve safety. Using his speech to tell Americans that he understood their concerns about rising prices, President Obama focused particularly on the price of fuel, which has risen in recent months. US consumers have historically enjoyed cheap fuel , but have seen prices rise in recent months even though US oil production in 2010 reached its highest level for seven years. Although the oil spill in the Gulf of Mexico in 2010 was serious, Mr Obama said the Gulf remained a key part of the country's future energy supply. The President's proposals come after Republicans introduced a series of proposals that would expand and speed up oil and gas production. The White House has criticized the Republican proposals for safety reasons , but Mr Obama was clear in his speech that he felt safety and environmental standards could be maintained even though production might rise. " I believe that we should continue to expand oil production in America --even as we increase safety and environmental standards ,"he said. "As a nation, we should be investing in the clean, renewable sources of energy that are the solution to high gas prices." Mr Obama has previously called for a step-change in energy policy, saying the US must move towards getting 80%of its electricity from clean energy sources by 2035. Question: What can we learn from the text ? - The US has got most of its electricity from clean energy. - US oil production is too small to keep the present low fuel prices. - The US produced the most oil in 2010 in its history. - The Gulf is still important in energy supply in spite of the oil spill in 2010.
The Gulf is still important in energy supply in spite of the oil spill in 2010.

Read the following article and select the best answer. Article: Earlier this month, the Obama Administration called for increased protection of the world's most southern continent, Antarctica.Scientists say climate change and human activity have increasingly led to the melting of massive pieces of Antarctic ice.The disappearance of ice will not only affect wildlife in the area such as seals and penguins.The melting will also cause oceans and seas around the world to rise. This represents a major threat, especially to coastal areas.For example, the ancient city of Venice, Italy has long been threatened by rising sea levels.The situation is made worse by the fact that its ancient buildings, built on a body of water called a lagoon , are slowly sinking.When the city was founded about 1,600 years ago, the level of the Adriatic Sea was almost two meters lower than it is today. Rising sea levels are not the only threat.The salty water is also destroying Venice's famous buildings and artworks.The Italian government is trying to fix the problem with the construction of a seven-billion-dollar system of moving flood barriers. Climate change is also leading to the melting of ice in other areas, such as Mount Kilimanjaro in northeastern Tanzania.It is the highest point in Africa, measuring almost 6,000 meters.The mountain supports five vegetation zones and many kinds of animals. The ice glaciers on the mountain are disappearing very quickly.This will have a bad effect on the mountain's ecosystems and on Tanzania's travel industry.Also, a valuable record of thousands of years of weather history will also be lost if the ice melts.Scientists study pieces of glacier to understand weather patterns from thousands of years ago. In the United States, the icy masses in Glacier National Park in Montana may soon completely disappear because of climate change.In 1850, there were an estimated 150 glaciers in the more than 400,000 hectare park. There are 26 glaciers remaining today.Scientists estimate that the glaciers will be gone by 2030.Warming... Question: According to the passage, what has been affected in Italy by rising sea levels? - Many kinds of plants and animals died out in Italy. - Venice's famous buildings and artworks are being destroyed completely. - The ice glaciers on the mountain are disappearing very quickly. - Its ancient buildings could be drowned.
Its ancient buildings could be drowned.

Read the following article and select the best answer. Article: Given that many people's moods are regulated by the chemical action of chocolate, it was probably only a matter of time before somebody made the chocolate shop similar to a drugstore of Chinese medicine.Looking like a setting from the film Charlie & the Chocolate Factory, Singapore's Chocolate Research Facility (CRF) has over 100 varieties of chocolates.Its founder is Chris Lee who grew up at his parents' corner store with one hand almost always in the jar of sweets. If the CRF seems to be a smart idea, that's because Lee is not merely a seasoned salesperson but also head of a marketing department that has business relations with big names such as Levi's and Sony.That idea surely results in the imagination at work when it comes to making different flavored chocolates. The CRF's produce is "green", made within the country and divided into 10 lines, with the Alcohol Series being the most popular.The Exotic Series--with Sichuan pepper, red bean , cheese and other flavors--also does well and is fun to taste.And for _ , who think that they have a better knowledge of chocolate than others, the Connoisseur Series uses cocoa beans from Togo, Cuba, Venezuela, and Ghana, among others. Question: What is good about chocolate? - It serves as a suitable gift. - It works as an effective medicine. - It helps improve the state of mind. - It strengthens business relations.
It helps improve the state of mind.