I'm taking a test and have to guess the right answer to the question after the article. Article: If you've ever owned a chimney, you know that it can get pretty dirty. There's a whole lot of soot that gets stuck on the inside. That stuff has to get cleaned, or you could have a serious fire risk. While nowadays we have easier ways of doing this dirty job, in the way back days somebody used to climb up the chimney and clean all that soot. And the thing is, not just anybody could do it. You had to be really small to fit up in the chimney, so they used to give the task to kids - some as young as four or five years old. They worked for their boss known as a master-sweep. They were often covered in soot, and were very likely to get burned. They often developed what became known as soot wart, a form of cancer. Are your unfairness bells ringing? William Blake's certainly were. The physical dangers and widespread unfairness of the chimney-sweeping job really stuck in his throat, so much so that he wrote not one, but two poems called "The Chimney Sweeper". The first poem (the one we're discussing here)was published in 1789 in a book called Songs of Innocence. These little poems took children and the joys of childhood innocence as their subject. As you've probably guessed by now, many of the poems in Songs of Innocence, like "The Chimney Sweeper", are about the ways in which childhood innocence is destroyed by unkind old adults. For Blake, innocence is, in many ways, a total joke. It doesn't exist, because it's always taken away by the realistic world - chimney-sweeping, death, poverty, etc. What does a five-year-old chimney sweeper in 18th-century England have to do with you? More than you might think. It is reported that 150 million kids are in child labor in developing countries. Many of them work long hours and face dangerous health risks. Like Blake's chimney sweeper, these kids are not even given a chance at innocence because experience keeps getting in the way. Question: How did Blake look at the realistic world? Options: A: Thankfully B: Regretfully C: Doubtfully D: Negatively
D
(Question)
I'm taking a test and have to guess the right answer to the question after the article. Article: What will power your house in the future? Nuclear, wind, or solar power? According to scientists at the Massachusetts Institute of Technology (MIT) in the US, it might be leaves -- but artificial ones. Natural leaves are able to change sunlight and water into energy. It is known as photosynthesis . Now researchers have found a way to imitate this seemingly simple process. The artificial leaf developed by Daniel Nocera and his colleagues at MIT can be seen as a special silicon chip with catalysts . Similar to natural leaves, it can split water into hydrogen and oxygen when put into a bucket of water. The hydrogen and oxygen gases are then stored in a fuel cell, which uses those two materials to produce electricity, located either on top of a house or beside the house. Though the leaf is only about the shape of a poker card, scientists claimed that it is promising to be an inexpensive source of electricity in developing countries. "One can imagine villages in India and Africa not long from now purchasing an affordable basic power system based on this technology," said Nocera at a conference of the American Chemical Society. The artificial leaf is not a new idea. The first artificial leaf was invented in 1997 but was too expensive and unstable for practical use. The new leaf, by contrast, is made of cheap materials, easy to use and highly stable. In laboratory studies, Nocera showed that an artificial leaf prototype could operate continuously for at least 45 hours without a drop in activity. The wonderful improvements come from Nocera's recent discovery of several powerful, new and inexpensive catalysts. These catalysts make the energy transformation inside the leaf more efficient with water and sunlight. Right now, the new leaf is about 10 times more efficient at carrying out photosynthesis than a natural one. Besides, the device can run in whatever water is available; that is, it doesn't need pure water. This is important for some countries that don't have access to pure water. With the goal to "make... Question: The main idea of this passage is about _ . Options: A: saving energy B: a mixture of water power and solar energy C: an invention copying photosynthesis D: an introduction to the history of artificial leaves
(Answer)
C
I'm taking a test and have to guess the right answer to the question after the article. Article: There are a lot of products out there that make your life easier. Some, however, are a little sillier than others -- so much that they seem like joke products. Here are a few products that sound crazy, but actually rule. Sleep Phones It's hard to imagine something sillier than a music-playing headband you wear while you sleep, but they exist -- and are quite popular. Sleep Phones won't give you the highest quality sound in the world, but if you prefer to fall asleep to music, they're far more comfortable than normal headphones. While they're a bit expensive, they might be perfect for you. There's also a wireless version if you prefer. Onion Goggles If cutting onion _ no matter what you try, it's time for desperate measures. We tested a bunch of methods for avoiding onion tears, and found the best solutions came down to cutting the onion under a vent , or wearing these stylish and awesome goggles. Lock Laces There're some great ways to tie your shoes better, but if you long for the laceless shoes of your childhood days, Lock Laces are a pretty good choice. They're basically elastic laces that remove the need to tie your shoes. Sure, people will make fun of you, but you can make fun of them after they trip over their own untied laces. Or you can make your own slip-on shoes with elastic tubing. 2D-Glasses Hate 3D-movies, but have to go to one? The difference between 2D-glasses and 3D-glasses lies in their lenses . Each lens of 2D-glasses blocks the same picture, so each eye gets the same picture, while each lens of 3D-glasses blocks a different picture, so each eye gets a different picture which the brain interprets as 3D. Now you have a pair of glasses that can save you from the headache caused by wearing 3D-glasses which are popular in our movie theaters. You can buy them or make a pair for yourself. Question: Compared with 3D-glasses, 2D-glasses _ . Options: A: are cheaper and thinner B: won't give you a headache C: let you see a different picture D: are more popular in movie theaters
B