Read the article and select the best answer. Article: Scientists from the United States say they have found fish and other creatures living under key waters in Antarctica. They made the announcement after completing three months of research at the Ross Ice Shelf, the world's largest floating ice sheet. The researchers hoped to find clues to explain the force of the melting ice and its effect on sea level rise. Reed Scherer and Ross Powell are with Northern Illinois University in DeKalb, Illinois. They just finished up their research on our southernmost continent. Money for the project came from America's National Science Foundation. "We chose a study site where, in the first year ,We went into the subglacial lake and tried to understand the environment in there, both ecologically and in terms of the ice dynamics about how the lake operates ,and how the sediment underneath the ice sheet operates, as well, because it's the water and the sediment underneath the ice that controls how fast the ice is flowing into the ocean" says Ross Powell, who led the investigation. The team included scientists ,engineers, machinery and other supplies across the ice from the main U.S. scientific base at Mc Murdo Station to the researcher's camp .The camp was near a subglacial lake ,where an earlier study took place, Ross Powell says the latest study may provide evidence that can help predict the effect of climate change on rising sea levels. "What we have found is that these are very sensitive areas to the stability of how dynamic the ice is and how fast the ice may react to increases of melting both from the ocean and the atmosphere." Among the new instruments built for the project was a powerful hot water drill. The researchers used the drill to dig down some 740 meters. They collected water ,sediment and other material from the grounding zone. Working around the clock before the deep hole refroze, they sent a video camera down to the 400-square-meter undersea area. Reed Scherer says the video images they saw in the Command Center were a total surprise. "It's a very mobile... Question: What can be inferred from the passage? Options: A: Scientists will conduct a follow-up study on the frozen continent. B: No creatures once appeared or lived in icy water in Antarctica. C: America's National Science Foundation is in complete charge of the research. D: Researchers have found how the sediment underneath the ice sheet operates.
A

Read the article and select the best answer. Article: Unlike traditional commercials, Public Service Advertisements(PSA)are primarily designed to inform and educate rather than sell a product or service. The goal of a PSA is not to make a big sale, but rather to change public opinion and raise awareness for a problem. Smokey Bear has been a recognized symbol of the protection of America's forests from fire. It is created to educate the public about the dangers of wildfires. Smokey Bear was started in 1944 with the slogan, "Smokey Bear Says--Care will prevent 9 out of 10 forest fires". Smokey Bear's later slogan, "Remember! Only You Can Prevent Forest Fires", was created in 1947 by the Advertising Council in America. In April 2001, the message was changed to "Only You Can Prevent Wildfires". The wildfire prevention campaign with Smokey Bear is one of the longest and most successful campaigns in advertising history. The Advertising Council often was in partnership with other organizations and groups to create various advertising for Smokey Bear since 1944. The Advertising Council teamed with Walt Disney Company to create a series of PSAs. The ads feature(***)characters form the classic film Sleeping Beauty and aim to reach parents and children. The lovely Bambi also appeared in the advertisements. Mickey Mouse is much more popular throughout the country. Those PSAs, which appear on television, on the radio, in the newspaper and on the website continue to remind Americans about the importance of wildfire prevention have helped to reduce the number of acres burned annually by wildfires. According to recent survey, Smokey Bear and his famous words of wisdom "Only You Can Prevent Wildfires" are recalled by 3 out of 4 adults. In addition to the PSA campaign, Smokey Bear has his own U.S. postage stamp and website for more information about wildfire prevention. From the website, you can also learn all about wildfires and how we can protect our forests. Question: PSA are primarily designed to _ . Options: A: educate the public B: change people's status C: discuss a problem D: sell products or services
A

Read the article and select the best answer. Article: In 1809, Mary Kies received the first U.S. patent issued to a woman. Kies , a Connecticut native , invented a process for weaving straw with silk or thread. First Lady Dolley Madison praised her for improving the nation's het industry. Unfortunately , the patent file was destroyed in a big fire in 1836. Until about 1840, only 20 U.S. patents were issued to women. The inventions were related to clothes, tools ,cook stoves and fireplaces. Patent is the "ownership" of an invention and only the inventor(s) can apply for it. In the past , women were not allowed to have equal rights of property ownership and many women patented their inventions under their husbands' or fathers' name. Women were also prevented from receiving higher education necessary for inventing. Here are a few examples to be noticed, and from these examples, we know enough reasons for encouraging girls and women to pursue technology-based courses and careers. The women inventors took annually granted U.S. patents rising fro;m 2.6 percent in 1977 to 10.3 percent in 1998. The majority of the U.S. woman-inventor patents are in the chemical technologies. In 1996, every eleven U.S. patent grant included one woman inventor. In the past 20 years, about 83 percent of the U. S. patent grants to women were for utility patents , 16.5 percent for design patents, and 0.5 percent for plant patents. About 35 percent of the U.S woman-inventor patents granted during the 1977 to 1996 period originated form California , New York or New Jersey. Today, hundreds of thousands of women apply for and receive patents every year. About 20% of all inventors are currently female and that number will quickly rise to 50% over the next generation. Question: Mary Kies's patent was _ . Options: A: a Connecticut native B: about a process of weaving silk C: useful in hat industry D: issued in 1836
C