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: The author mentions the masses of the Milky Way and Andromeda mainly to _ . Options: A: explain why the same object has a different weight on different stars B: compare the distance between the Milky Way and Andromeda C: show that studying dark matter could help to answer some scientific questions D: support the idea that scientists prefer to talk about mass instead of weight
C

I'm taking a test and have to guess the right answer to the question after the article. Article: The truth was written all over her face. The eyes are the window to the soul. From those sayings, you would think that we could read faces. In fact, people tend to overestimate their ability to do it. Most of us can't distinguish between certain expressions without contextual clues. In one study, participants were unable to tell whether faces in photos were showing pain or pleasure about a quarter of the time. In another, when people watched silent videos of the same person experiencing pain and faking pain, they couldn't tell which was which. And yet, as bad as we are at reading expressions, we jump to all kinds of conclusions based on people's faces. We might scoff at the ancient physiognomy--assessing character on the basis of facial feature--but we unknowingly practice it daily. Recent research shows that while there's practically no evidence that faces reveal character, we nonetheless behave as if certain features signal certain traits. People with typically "female" facial features seem more trustworthy; those with lower eyebrows appear more controlling. In another study, people were ready to decide whether an unfamiliar face should be trusted after looking at it for just 200 milliseconds. Even when given a chance to look longer, they rarely changed their mind. Such judgments can defy logic. Subjects playing a trust game invested more money with a player who had a trustworthy face than with one who didn't--even when the two players had the same fame. Another study reported that judges needed less evidence to sentence a person with an untrustworthy face. And a researcher focusing on the Israeli-Palestinian conflict found that a Palestinian peace offering was more likely to be accepted by Jewish Israeli if it was attributed to a politician with "babyfacedness". Which brings us to a contradiction. A person's face may not reflect her nature, and yet research finds that specific facial features do seem to influence futures. U.S. Army War College graduates with controlling-looking faces are more likely than... Question: Which of the following is TRUE according to the author? Options: A: People rush to judgments based on facial features. B: People are better at telling "pain" than "delight" from faces. C: People consider it instructive to study the ancient physiognomy. D: People would change their first impression if given more chances.
A

I'm taking a test and have to guess the right answer to the question after the article. Article: I know what you're thinking : pizza ? For breakfast? But the truth is that you can have last night's _ in the a. m. if you want to. I know lots of women who skip breakfast , and they have a ton of different excuses for doing it . Some say they don't have time, others think they're "saving" calories , still others just don't like breakfast food . But the bottom line is that eating in the morning is very important when you're trying to lose weight. "Eating just about anything from 300 to 400 calories would be better than nothing at all," says Katherine Brooking , R , D , who developed the super-easy eating plan for this year's "SELF CHALLENGE". And even pizza can be healthy if it's loaded with vegetables, and you stick to one small piece. Breakfast is one meal I never miss, and the same goes for most weight loss success stories. Research shows that eating breakfast keeps you from overeating later in the day. Researchers at the University of Southern California found that breakfast skippers have a bigger chance of gaining weight than those who regularly have a morning meal. So eat something in the morning, anything. I know plenty of friends who end up having no breakfast altogether, and have just coffee or orange juice. I say, try heating up last night's leftovers-it may sound crazy, but if it works for you, do it! I find if I tell myself, "You can always eat it tomorrow," I put away the leftovers instead of eating more that night. Try it...you may save yourself some pre-bedtime calories. And watch your body gain the fat-burning effects. Question: What's the writer's attitude towards eating breakfast? Options: A: He thinks it's up to different people. B: He is not sure about it. C: He thinks it depends. D: He supports it.
D