Ques: I'm taking a test and have to guess the right answer to the question after the article. Article: The evolution of the first animals may have oxygenated Earth's oceans. New research led by the University of Exeter challenges the long held belief that oxygenation of the atmosphere and oceans was a precondition for the evolution of complex life forms. The study, published in the journal Nature Geoscience, builds on the recent work of scientists in Denmark who found that sponges the first animals to evolverequire only small amounts of oxygen. Professor Tim Lenton of the University of Exeter, who led the new study, said: "We argue that the evolution of the first animals could have played a key role in the widespread oxygenation of the deep oceans. This in turn may have the evolution of more complex, mobile animals." Critical to determining oxygen levels in the deep ocean is the balance of oxygen supply and demand. Demand for oxygen is created by the sinking of dead organic material into the deep ocean. The new study argues that the first animals reduced this supply of organic matterboth directly and indirectly. Sponges feed by pumping water through their bodies, "digesting" the tiny particles of organic matter, and thus helping oxygenate the shelf seas that they live in. By oxygenating more of the bottom waters, the first animals actually increased the removal of the essential nutrient phosphorus in the ocean. This in turn reduced the productivity of the whole ocean ecosystem, lowering oxygen demand and thus oxygenating the deep ocean. A more oxygen-rich ocean created ideal conditions for more complex mobile animals to evolve, because they have a higher requirement for oxygen. These included the first predatory animals with guts that started to eat one another, marking the beginning of the type of food webs we are familiar with today. Professor Simon Poulton of the University of Leeds, who is a co-author of the study, added: "This study provides a possible mechanism for ocean oxygenation without the requirement for a rise in atmospheric oxygen. It therefore questions whether the long-standing belief that... Question: The main purpose of the passage is to _ . Options: A: present the view that the first animals played an active role in oxygenating oceans B: introduce two opposite opinions on how the first animals oxygenated oceans C: analyze how atmospheric oxygen stepped up the evolution of oceanic animals D: explain how oceanic oxygen determines the amount of atmospheric oxygen
Ans: A

Ques: I'm taking a test and have to guess the right answer to the question after the article. Article: Liu Jiaoyang,16,carefully winds a bobbin with thread, places it on her sewing machine and then presses her foot down to begin sewing. While she's doing this,she pretends to guide cloth through the machine. Each Tuesday afternoon,after the bell rings for the fourth period, Liu becomes a fashion designer. At the same time,the rest of the students at the High School Attached to Yunnan Normal University in Kunming are also having classes a little bit different from the usual ones. Some students dance,others create robots,and still others review films. These are just a few of the 28 elective courses the school began to offer last month. "The fashion design class has become the bright point of my week. I learn how to choose color1s and cloth as well as sewing and sketching skills. It's all helping me to realize the dream of becoming a fashion designer I've had since I was a little girl," Liu said. Design is Liu' s passion,but for other students the electives are more an opportunity to take a fun course that relieves the pressures of schoolwork. Some students,for example,are learning how to play bridge. Chen Xiejiao,15,is one of them. "Many people think that playing a card game like this in class is a waste of time. But in fact,bridge is a very challenging game that helps develop memory and math skills," she said. Li Ke,15, is studying robotics. "I hope to have built and designed my own robot by the end of the semester. It will be able to complete a task,like moving a bail from one place to another," he said . Question: Which of the following statements is NOT true according to the passage? Options: A: There are 28 elective courses the school began to offer in Liu Jiaoyang' s school. B: Liu Jiaoyang shows great interest in the fashion design class. C: Liu Jiaoyang is going to be a fashion designer in the future. D: Liu Jiaoyang is not good at learning science subjects.
Ans: D

Ques: I'm taking a test and have to guess the right answer to the question after the article. Article: What Is a Boy? Between the innocence of babyhood and the seriousness of manhood we find a delightful creature called a "boy". Boys come in different sizes, weights, and colors, but all boys have the same belief: to enjoy every second of every minute of every hour of every day and to fill the air with noise until the adult males send them off to bed at night. Boys are found everywhere --- on top of, under, inside of, climbing on, swinging from, running around, or jumping to. Mothers spoil them, little girls hate them, older sisters and brothers love them, and God protects them. A boy is TRUTH with dirt on its face, BEAUTY with a cut on its finger, WISDOM with chocolate in its hair, and the HOPE of the future with a snake in its pocket. When you are busy, a boy is a trouble-maker and a noise. When you want him to make a good impression, his brain turns to jelly or else he becomes a wild creature destroying the world and himself with it A boy is a mixture - he has the stomach of a horse, the digestion of stones and sand, the energy of an atomic bomb, the curiosity of a cat, the imagination of a superman, the shyness of a sweet girl, the brave nature of a bull, the violence of a firecracker , but when you ask him to make something, _ He likes ice cream, knives, saws, Christmas, comic books, woods, water (in its natural habitat), large animals, Dad, trains, Saturday mornings, and fire engines. He is not much for Sunday schools, company, schools, books without pictures, music lessons, neckties, barbers, girls, overcoats, adults, or bedtime. Nobody else is so early to rise, or so late to supper. Nobody else gets so much fun out of trees, dogs, and breezes. Nobody else can put into one pocket a rusty knife, a half eaten apple, a three-feet rope, six cents and some unknown things. A boy is a magical creature - he is your headache but when you come home at night with only destroyed pieces of your hopes and dreams, he can mend them like new with two magic words, "Hi, Dad!" Question: According to the writer, boys appreciate everything in the following except _ . Options: A: ice cream B: comic books C: Saturday mornings D: Sunday schools
Ans:
D