Question: I'm taking a test and have to guess the right answer to the question after the article. Article: Being an astronaut sounds cool, doesn't it?In space, they get to do some pretty amazing things, like floating in zero gravity. However,there are also plenty of things that astronauts can't do because of their weightless environment, and that's very sad. What's worse, they can't even let their sadness show--because it's impossible to cry in zero gravity. Of course, astronauts can still produce tears. But crying is much more difficult in space,reported The Atlantic in January. Without gravity, tears don't flow downward out of the eyes like they do here on Earth. This means that when you cry in space, your tears have nowhere to go--they just stick to your eyes. In May 2011, astronaut Andrew Feustel experienced this during one of his spacewalks."Tears," he said, "don't fall off your eye... They just kind of stay there." Besides making your vision unclear, this can also cause physical pain. Back on Earth, tears are supposed to bring comfort to the eyes.But that's not the case in space.The space environment dries out astronauts' eyes, and when tears suddenly wet the eyes, it can cause pain rather than comfort. "My right eye is painful like crazy." Feustel told his teammate during the walk. Since gravity doesn't work in space, astronauts need some extra help to get rid of the tears.Feustel chose to rub his eyes against his helmet to wipe the tears away. Another choice is to just wait--"When the tears get big enough they simply break free of the eye and float around,"astronaut Ron Parise told The Atlantic. There are lots of small things--things like crying--that we are so used to on Earth. We usually take them for granted, until they become a problem in a totally different environment,like space. There, astronauts can't talk to each other directly. They also can't eat or drink in normal ways. They can't even burp , because there is no gravity to hold the food down in their stomach. If they do burp, they just end up throwing up everything in their stomach,according to the UK National Space Center. Thus, perhaps it's... Question: What can the astronaut do to get rid of the tears? Options: A: Rub his eyes against his helmet to let the tears float forward. B: Rub his eyes by hand to let the tears float around. C: Get the tears big enough to fall off of his eyes. D: Get the tears big enough to break away from his eyes.
Answer: D

Question: I'm taking a test and have to guess the right answer to the question after the article. Article: Chinese police arrested around 8,500 suspects in more than 4,500 environment-related criminal cases in 2014, as the country waged war against pollution, the leader of the Chinese environment authorities, Chen said. Environmental authorities handed more than 2,000 cases of suspected environmental law violations to the police, more than double the figure for the past 10 years combined. Close to 3,400 companies and 3,700 construction sites were also found to have violated environment laws and more than 3,100 workshops were closed following air quality inspections by Ministry of Environmental Protection ( MEP) officials and drones , Chen said. The announcement came as a result of long lasting heavy smog in Beijing and the neighboring Tianjin and Hebei province for the better part of a week. The next step is to further optimize the country's industry, and energy structure and cut back one missions of air pollutants, Chen said. Authorities will go on cutting back on outdated factories this year, shut down l,000 small coal mines, improve the quality of coal on the market, guarantee stable supply of natural gas, and promote the use of clean energy and energy-saving buildings. Chen said efforts will also be made to improve the evaluation of governments' carrying out of air pollution control measures, deepen regional cooperation, step up technological research and sharpen laws and regulations in the field, to make polluters nay the "unaffordable price". Chen said environmental authorities would "bring new tools introduced in the law into full play, conduct more secret inspections and seek heavier punishment for companies guilty of illegal emissions and those which deliberately change pollution data. " Government officials who overlook their duties or abuse their power will be examined in line with law, he said. Question: What will a company face if it violates environment laws? Options: A: It just has to pay some money. . B: It has to pay unaffordable price. C: It has to cut back on production. D: It has to change pollution data.
Answer: B

Question: I'm taking a test and have to guess the right answer to the question after the article. Article: If you look at the night sky, you'll often see stars moving very quickly. In fact, they move much more quickly than they should according to their size and the laws of physics. Scientists do not completely understand why the speed of these stars is so high. But many believe the reason is that much of the universe is made of something called "dark matter". Groups of stars called galaxies, such as the Milky Way, might even be made up of 90 percent dark matter. How much something weighs depends on where it is. The same object weighs only half as much on Mars as it does on Earth and almost three times as much on Jupiter. So scientists prefer to talk about the mass of something rather than how much it weighs, because mass does not change. They can work out the mass of galaxies by measuring the distance between them and the speed they move at. Recently, Jorge Penarrubia, a senior academic at Edinburgh University, UK, and his team discovered something interesting: The mass of the Milky Way is only half as much as the mass of another nearby galaxy, Andromeda. This seems strange, and dark matter may explain why. Finding out more about dark matter could help us understand how the universe began, but this is not easy. Lots of scientists with different types of expert knowledge are working on the problem. We can't see dark matter, it's very difficult to measure and we can't find out its mass. Unlike stars, dark matter doesn't produce or reflect light. But we can make a good guess that it is there because of the way things move and the way light bends. Experts now think dark matter may be very different from the matter that we find on Earth. There may also be five times as much dark matter in the universe as ordinary matter. Question: According to the text, dark matter _ . Options: A: could accelerate the speed of stars B: could lessen the mass of objects in galaxies C: makes up the entire universe and its stars D: may help us identify the origins of the universe
Answer:
D