Q: I'm taking a test and have to guess the right answer to the question after the article. Article: Right in front of the Minneapolis Central Library,a row of green bikes sits parked in a special stand.Each bike is designed with the logo"Nice Ride"--the name of the city's bike-share program. Nice Ride bikes are a lot like the library books that people come here to borrow.To rent a bike,you simply use your membership card at a Nice Ride bike station.Members can rent one of 1,200 bikes from 138 stations throughout Minnesota's largest city.People use the Nice Ride bikes to go to work,to go out on business,or just to enjoy the city's many bike paths. The rise of bike-share programs like Nice Ride is encouraging more people than ever to choose biking over driving.Rising gas prices and concerns about the environment have also gotten people to dust off their bike helmets, pump air into flat tires,and hit the road. Why ride? Not only is biking good exercise,but switching from a car to a bike also reduces the amount of pollution in the air.Carbon dioxide,a greenhouse gas linked to climate change,is one of the many polluting substances that come out of a car's tallpipe. Bike-share systems are found around the world in cities like London,Paris,Barcelona,and Melbourne,Australia.The largest program-with 70,000 bikes-is in Wuhan,China. To make roads friendlier to non-motorists,the U.S.Department of Transportation has invested more than a billion dollars in cycling and pedestrian projects in recent years.The money went toward building thousands of miles of on-street bike lanes and bike-and pedestrian-only passages called green ways. Question: The author's purpose in writing this text is to _ . Options: A: spread bike-share programs B: seek advice for Nice Ride C: compare Nice Ride with libraries D: introduce the public bike system
A: D

Q: I'm taking a test and have to guess the right answer to the question after the article. Article: Last Friday, I was coming home late after spending time with friends and thought I'd go down to the $99 cent pizza place. On the way, I saw a man sitting on the stairs alone there. I'd seen him before every day I run late to work, but this time I had no place to rush off to. There was something about him, a quiet manner, different from many of other homeless people I had seen in New York City. I walked past him, went to the pizza place, and those 10 seconds waiting in line was enough to practice stepping outside of my usual, familiar flow. So with a few slices in hand, I went back to join him. I asked him if he was hungry. He said yes, but not for pizza because it made him uncomfortable. He'd rather have a few bucks for chicken and rice since it was easier on his stomach. It's funny, in that moment, he became more real to me. This man I had seen almost every day was someone with specific conditions, needs, and experiences. We exchanged names and ended up talking for a little over an hour that night as Kevin told me stories from his life, how he had done things when "he was younger and didn't know any better" and how he tried to make amends but too much time had passed. He shared his views on the value for young adults to learn the history of other people. He talked about his one wish being in his 60's before he leaves this earth, which is to share his story with the teenagers and young adults so they could avoid the mistakes he went through. Throughout the conversation, he eventually got his chicken and rice and gifted me a rose he had been carrying. Shortly afterwards, I made my way home, thinking to myself, "I met an amazing homeless person". Question: It can be inferred from the text that _ . Options: A: The homeless man is different from others B: The writer showed his pity to the homeless man C: What the homeless man thought shocked the writer D: What the homeless man did was not very meaningful
A: C

Q: I'm taking a test and have to guess the right answer to the question after the article. Article: The world's oceans are slowly getting more acidic, say scientists. The researchers from California say the change is taking place in response to higher levels of carbon dioxide in the atmosphere. The lowering of the waters' pH value is not great at the moment but could pose a serious threat to current marine life if it continues, they warn. Ken Caldeira and Michael Wickett, from the Lawrence Livermore National Laboratory, report their concerns in the journal Nature. Increasing use of fossil fuels means more carbon dioxide is going into the air, and most of it will eventually be absorbed by seawater. Once in the water, it reacts to form carbonic acid. Scientists believe that the oceans have already become slightly more acidic over the last century. But these researchers have tried to predict what will happen in the future by combining what we know about the history of the oceans with computer models of climate change. "This level of acidity will get much more extreme in the future if we continue releasing CO2 into the atmosphere," said Dr Caldeira. "And we predict amounts of future acidity will exceed anything we have seen over the last several hundred million years, let alone perhaps after rare catastrophic events such as asteroid impacts ." If carbon dioxide release continues unabated , ocean pH could be reduced by as much as 0.77 units, the authors warn. It is not ly clear what that means for marine life, however. Most organisms live near the surface, where the greatest pH change would be expected to occur, but deep-ocean lifeforms may be more sensitive to pH changes. Coral reefs and other organisms whose skeletons or shells contain calcium carbonate may be particularly affected, the team speculate. They could find it much more difficult to build these structures in water with a lower pH. In recent years some people have suggested deliberately storing carbon dioxide from power stations in the deep ocean as a way of curbing global warming. But Dr Caldeira said that such a strategy should now be... Question: According to Dr Caldeira, _ . Options: A: the future situation of the amount of acidity is extremely serious B: ocean absorption of carbon dioxide is a good thing C: scientists may predict climate changes with computer models D: more oil fuels will be used in the near future
A: A