Read the following article and select the best answer. Article: It was dark. As John was walking on his way home, he suddenly found an ugly old man staring at him. The old man said, "Son, why don't you get a book? It will keep you company." John noticed all the books the old man had were related to the super nature . Trying to act bravely, he found one and the old man said, "That's an interesting book. It's $25." The old man kept staring at John, which almost frightened him. He quickly searched his pockets and found $25.John quickly paid for it. Then the old man called out, "Whatever happens, don't turn to the last page. Do remember, or you will regret it!" Reaching home, John heard his parents talking about a strange old book seller that appeared only at night during a full moon and then disappeared. Nervously, he ran straight to his room. At midnight, as he was sound asleep in bed, a blast of cold wind blew in through the window and woke him up. He looked at his table and saw the book. For a while, he was frozen in fear, but he was so curious. Slowly he got out of bed and carefully picked up the book. As he took a look at the last page, he cried out and fainted . This is what he read on the last page! Original Price:$10.99 Promotional Price: $2.99 Question: When did John turn to the last page of the book? - Immediately after he bought it. - When he was talking with his parents. - When he read to the last page of the book. - After he was woken up at midnight.
After he was woken up at midnight.

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Read the following article and select the best answer. Article: Plants are flowering faster than scientists predicted in reaction to climate change,which could have long damaging effects on food chains and ecosystems. Global warming is having a great effect on hundreds of plant and animal species around the world,changing some living patterns,scientists say. Increased carbon dioxide (CO2)in the air from burning coal and oil can have an effect on how plants produce oxygen,while higher temperatures and changeable rainfall patterns can change their patterns of growth. "Predicting species' reaction to climate change is a major challenge in ecology,"said the researchers of several U.S. universities.They said plants had been the key object of study because their reaction to climate change could have an effect on food chains and ecosystem services. The study,published on the Nature website,uses the findings from plant life cycle studies and experiments across four continents and 1,634 species.It found that some experiments had underestimated the speed of flowering by 8.5 times and leafing by 4 times. "Across all species,the experiments under-predicted the speed of the advance--for both leafing and flowering -- that results from temperature increases,"the study said. The design of future experiments may need to be improved to better predict how plants will react to climate change,it said. Plants are necessary for life on the Earth.They are the base of the food chain,using photosynthesis to produce sugar from carbon dioxide and water.They let out oxygen which is needed by nearly every organism on the planet. Scientists believe the world's average temperature has risen by about 0.8 degC since 1900,and nearly 0.2 degC every ten years since 1979. So far,efforts to cut emissions of planet-warming greenhouse gases are not seen as enough to prevent the Earth heating up beyond 2 degC this century-- a point scientists say will bring the danger of a changeable climate in which weather extremes are common,leading to drought,floods,crop failures and rising sea levels. Question: Scientists pay special attention to the study of plants because . - they can prove the climate change clearly - they are very important in the food chains - they play a leading role in reducing global warming - they are growing and flowering much faster than before
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they are very important in the food chains

Read the following article and select the best answer. Article: Why are people interested in eating raw foods or whole foods? One reason is that eating these types of food reduces the risk of acid accumulation in your body. Raw and whole foods are usually digested more efficiently than cooked and refined foods. When we cook foods, we destroy the natural enzymes that are part of the food in its raw form. These enzymes were intended by nature to help us digest the food. When we consume food without these natural enzymes, our bodies either digest the food improperly or allow too many nutrients to be absorbed into the bloodstream. In both instances, the result is obesity. When too many nutrients are absorbed at once, the body grows fat. Improperly digested food moves slowly through the digestive tract, where it becomes increasingly acidic . To protect its vital organs from this acidic waste, the body changes the acid into fat and stores it safely away from the organs. Processed foods contain chemical elements, which might confuse the appetite mechanism that tells us when we've had enough to eat; as a result, people often overeat . Processed foods also upset the digestive cycle. The body will either identify these foods as allergens and then store them safely away from the organs as fat, or the remains of undigested food will become acidic and enter the bloodstream as acid waste, which will stick to the blood vessel walls and block the passage of vital oxygen and nutrients heading for the body's cells. The body's metabolism becomes inactive, and then result is weight gain and obesity. The accumulation of acid in the digestive tract makes digestion increasingly inefficient. When that happens, even healthy foods can become acidic and the food allergies will become more common. To stop this vicious circle in its tracks, people need to consume food and supplements that will neutralize (...)the acid already accumulated in body. Eating the right types of raw and whole foods can help. it's also important to restore your enzyme balance. You need to identify and avoid the foods that... Question: . What can we learn from the text? - Processed foods are good for our appetite mechanism - Eating the right types of raw and whole foods does good to our body - The accumulation of acid in the digestive tract makes digestion more effective - Processed foods also comfort the digestive tract
Eating the right types of raw and whole foods does good to our body