Q: I'm taking a test and have to guess the right answer to the question after the article. Article: Since the development of the Internet, men and women have frequented the information superhighway for the purposes of research and social networking. Recently, developments in fourth-generation networks and associated communication devices such as smart phones and smart tablets such as the BlackBerry PlayBook have allowed social networking technology to take a giant leap forward. In this fast-paced world it is often difficult to stay in contact with friends, family, and coworkers, due to the fact that work and education often cause people to move to a number of different locations after spending only a short time in each place. Many people have accepted the fact that family members may only see each other a few times a year. Smart phones are equipped with their own wireless fidelity connections, which allow them to connect to Internet-based social networking sites. The BlackBerry PlayBook allows users to make hands-free telephone calls while on the go, and it has a host of other interesting functions. At the same time, PlayBook users can still surf the same old websites, and check e-mail through the Internet connection. However, instant messaging and e-mail are quickly becoming outdated because of the PlayBook's video chat capabilities. This particular feature makes the PlayBook an excellent choice for those families who find themselves separated over long distances. Someone once said that a picture was worth a thousand words. Thanks to the PlayBook's video chat capabilities, users of 4G devices can gain a measure of the physical contact that all human beings hope for, because of the device's ability to deliver the streaming real-time video to their users. Therefore, people can see the person they are speaking to, and read their facial expressions as well as their body language, while also hearing their actual voices in stereo sound . Based on this information, choosing to buy the BlackBerry PlayBook is one of the best choices that one can make. Use the benefits of this newest BlackBerry tablet to stay in... Question: According to the author, fourth-generation networks and related devices_. Options: A: can help people gain a lot of knowledge easily B: can help people use networks to make many friends C: have made a great breakthrough in networking technology D: will take the place of personal computers completely
A: C

Q: I'm taking a test and have to guess the right answer to the question after the article. Article: Mosquitoes have an extraordinary ability to target humans far away and fly straight to their unprotected skin. Regrettably,mosquitoes can do more than cause an itchy wound. Some mosquitoes spread several serious diseases,including Dengue,yellow fever and malaria. Over one million people worldwide die from these diseases each year. New research now shows how mosquitoes choose who to bite. Mosquitoes need blood to survive. They are attracted to human skin and breath. They smell the carbon dioxide gas,which all mammals breathe out. This gas is the main way for mosquitoes to know that a warm-blooded creature is nearby. But mosquitoes also use their eyes and sense of touch. Michael Dickinson is a professor at the California Institute of Technology. His research shows how these small insects,with even smaller brains,use three senses to find a blood meal. Michael Dickinson's team used plumes--a material that rises into the air of carbon dioxide gas into a wind tunnel. They then used cameras to record the mosquitoes. The insects followed the plume. Then,the scientists placed dark objects on the lighter colored floor and walls of the tunnel. Mr. Dickinson said,at first,the mosquitoes showed no interest in the objects at all. "What was quite striking and quite surprising is that the mosquitoes fly back and forth for hours. These are hungry females and they completely ignore the objects on the floor and wall of the tunnel. But the moment they get a hit of CO2,they change their behavior quite obviously and now would become attracted to these little visual blobs ." This suggested to the researchers that a mosquito's sense of smell is more important in the search for food. Once mosquitoes catch a smell of a human or animal,they also follow visual signals. Question: What can be the best title for the text? Options: A: How Do Mosquitoes Survive? B: Why Do Mosquitoes Need Blood? C: How Do Mosquitoes Choose to Bite You? D: Why Do Mosquitoes Attack the Human Being?
A: C

Q: I'm taking a test and have to guess the right answer to the question after the article. Article: People should be warned against using mobile phones outdoors in stormy weather because they may"be struck by lightning",according to doctors. Three experts have described how a teenage girl was struck by lightning while using her phone in a large London park.The girl,aged 15,recovered,but a year later was still wheelchair-bound and found to be suffering complex physical and emotional problems. The girl also had a perforate eardrum on the side where she had been holding the mobile phone.She was having general recovery in Northwick Park Hospital,Middlesex. Swinda Esprit,a senior house officer, said that while the brain and muscle damage was similar to that of many lightning victims--who can experience heart attacks on being struck--the ear problems were not. She said that the damages were particularly relevant for people who might be involved in less serious lightning incidents,who might otherwise recover, but would never get their full hearing back if struck while on the phone. "We were shocked by the damage,which is why we wanted to draw attention to it,"Dr Esprit said."A year on and she still was suffering these difficult hearing." They added that three other cases had been reported in newspapers in China,South Korea,and Malaysia.In the Malaysian case,a sales executive was killed by lightning while talking on his phone during a thunderstorm near Kuala Lumpur. "All these events resulted in death,"the doctors wrote."This rare phenomenon is a public health issue,and education is necessary to stress the risk." The Australian Lightning Protection Standard recommends that metallic objects,including cordless or mobile phones,should not be carried outdoors during thunderstorms.However, "the United States National Weather Service says on its website that both are safe to use "because there is no direct path between you and the lightening". Paul Taylor, of "the Met Office'',said the ear injuries were a consequence of mobile phones being metal,and not related to radio waves. Mr. Taylor said that mobile phones should be... Question: The purpose in writing this passage is _ . Options: A: to draw attention to the risk of using mobile phones in lightening B: to focus on various damages done to lightning victims C: to tell us the news that a teenage girl was struck by lightning D: to stress the danger of making phone calls in lightning
A: A