I'm taking a test and have to guess the right answer to the question after the article. Article: We all enjoy the beautiful show of color1s as leaves change each autumn. But did you ever wonder how and why this happens? To answer the question, first you have to understand what leaves are and what they do. Leaves are nature's food factories. Plants take water from the ground through their roots. And they take a gas called carbon dioxide from the air. Plants use sunlight to turn water and carbon dioxide into glucose . Glucose is a kind of sugar. Plants use glucose as food for energy and as a building block for growing. The way plants turn water and carbon dioxide into sugar is called photosynthesis . That means, "putting together with light". A chemical called chlorophyll helps photosynthesis. Chlorophyll is what gives plants their green color1. As summer ends and autumn comes, the days get shorter and shorter. This is how trees "know" to begin getting ready for winter. During winter, there is not enough light or water for photosynthesis. Trees rest during this time and live off the food they stored during the summer. They begin to shut down their food-making factories. The green chlorophyll disappears from the leaves. As the bright green fades away, we begin to see yellow and orange leaves. Small amounts of these color1s have been in the leaves all along. We just can't see them in the summer, because they are covered up by the green chlorophyll. The bright reds and yellows we see in leaves are made mostly in autumn. In some trees, like maples, glucose is caught in the leaves after photosynthesis stops. Sunlight and the cool nights of autumn turn this glucose into a red color1. The brown color1 of trees like oaks is made from waste left in the leaves. It is the mixture of all these things that makes the beautiful color1s we enjoy during autumn. Question: Which of the following about chlorophyll is NOT true? Options: A: Without it photosynthesis couldn't happen. B: It is the reason why leaves have their green color1. C: It turns the leaves red during autumn. D: It is a chemical that's important for trees' food making.
C
I'm taking a test and have to guess the right answer to the question after the article. Article: London, Reuters--What could annoy teenagers enough to make them stop hanging out with friends and go home? No, it's not a visit from their mothers, and not a threat to take away their cellphones or pocket money. It's high-frequency noise. The UK police recently agreed to use a device called the Sonic Teenager Deterrent. It sends out a sound that makes teenagers become so impatient and angry that they have to cover their ears tightly and walk away. The sound is at extreme high-pitch that can be heard by those under 20. The body's natural ability to detect some wave bands decreases almost entirely after 20, so few adults can hear the sounds. The black-box device, nicknamed the Mosquito because of its sound, can be fixed to the outside walls of shops, offices and homes. It sounds to youngsters like a crazy insect or a badly played violin. But it causes no physical damage. A number of police forces and councils have given permission to use the system and want to install it at trouble spots. Staffordshire Police Inspector Amanda Davies, who has given the device to shopkeepers in the Moorlands area, said," It is controlled by the shopkeepers--if they can see through their window that there is a problem, they turn the device on for a while until the group has run away." Question: The device can be used to _ . Options: A: threaten teenagers in public B: drive away trouble-makers under 20 C: help mothers control their teenage children D: help the police control shopkeepers
B
Q: I'm taking a test and have to guess the right answer to the question after the article. Article: The artist Grandma Moses became famous for her simple, bright, cheerful paintings of American farm life.Her full name was Anna Mary Robertson Moses.But she was known to everyone as Grandma Moses because she did not begin to paint seriously until in her seventies. Born on a farm in New York, Anna had little schooling.Her days were filled with farm chores.But she often found time to make pictures.Soon, however, she became too busy to draw or paint.At the age of 12, she went to work as a servant for a family nearby.She worked for other people for many years.Then, when she was 27, she married Thomas Moses, a farmer.And they began raising a family of their own. Anna Moses could no longer do heavy farm work with age.Then, in her seventies, she began to paint in oils.Her pictures showed things she recalled from childhood-farm scenes, ice-skating, bringing home the Christmas tree.Later, she began to display her art at county fairs.Her pictures recorded a way of life that was quickly passing away.People everywhere loved these happy scenes, and soon her paintings were shown in art galleries.Grandma Moses became famous partially on account of her age, but mainly because her approach to art was modest and simple compared to many other painters of her time.Without formal training or even knowledge of Modernism, she relied on her own simple techniques to create her landscapes and scenes.She continued to paint almost until her death, on December 13, 1961 , at the age of 101. The themes in her paintings provided the comfort of a rural life that many busy Americans treasured from their past.The threat of nuclear arms that appeared on television screens and in magazines had Americans starving for something more.Grandma Moses' art appealed to those who had lost hope for the future.Her classic paintings still appear on TV commercials, greeting cards, and magazine and book covers. Question: We can know from the passage that _ . Options: A: her paintings raised people's hope for the future B: her paintings expressed the reality of her old age C: many Americans were interested in purchasing art works D: people wanted to get comfort by remembering grandmas
A: A
*Question*
I'm taking a test and have to guess the right answer to the question after the article. Article: Your friends' lives may look more exciting than yours on Facebook,but new research shows that is because they are faking it. A recent survey has found around twothirds of people on social media post images to their personal information to make their lives seem more adventurous.And more than three quarters of those asked said they judged their peers based on what they saw on their Instagram,Snapchat or Facebook pages. The British survey,by smartphone maker HTC,found that,in order to make our own pages and lives appear more exciting,six percent also said they had borrowed items to include in the images in order to pass them off as their own. More than half of those surveyed said they posted images of items and places purely to show off,causing _ among friends and family. Behavioural psychologist Hemmings said the trend was unsurprising due to the rise of social media."We're living in a world of instant communication."she said."Fashion and style used to live and die in magazines;now people are in search of authentic ,peertopeer recommendations as well,making social media an equal power house to magazines and newspapers." "With images being shared in an instant we desire to know what our friends are wearing,or what super stars are buying, as soon as they have got them." Such is the influence of social media sites like Instagram,76 percent of those asked also said seeing items on social media influences them to buy them,with men more likely to take style advice and buy what they see. Question: Which of the following best describes social media like Instagram? Options: A: Persuasive. B: Creative. C: Positive. D: Honest.
**Answer**
A