Read the following article and select the best answer. Article: Santa Claus is someone who will remain in the hearts of children forever. Santa C1aus also has some other names: Saint Nicholas, St. Nick, Kris Kringle, Pelznickel. Two of his names-Santa Claus and Saint Nicholas-both come from the Dutch who settled in New York long ago. The Dutch honored this kindly saint with a yearly festival on December sixth. The Dutch spoke the name "Saint Nikolas" very fast. It sounded like "sinterklaas". And so, when the English said this word, it sounded like "Santa Claus". West of New York, in Pennsylvania, many German farmers had also heard of Saint Nikolas. But they cal1ed him "Pelznickel". This word came from "pelz", meaning fur, and "nickel" for Nicholas. So, to the Germans of Pennsylvania,"Pelznickel" was a man dressed in fur who came once a year with gifts for good children. Soon, people began to feel that the 1ove and kindness Pelznickel brought should be part of a celebration honoring the "Christkindl", as the Germans ca1led the Christ child. After a time, this became Kris Kringle. Later, Kris Kringle became another name for Santa Claus himself. Whatever he is called, he is still the same short, fat, jolly old man with a long beard, wearing a red suit with white fur. The picture of Santa Claus as we see him came from Thomas Nast. He was an American painter born in Bavaria. Someone asked him to paint a picture of Santa Claus. Nast remembered when he was a little boy in southern Germany Every Christmas, a fat old man gave toys and cakes to the children. So, when Nast painted the picture, his Santa Claus looked like the kindly old man of his childhood. And through the years, Nast's painting has remained as the most popular picture of Santa Claus. Santa can be seen almost everywhere. It is easy to find them by the long lines of children waiting to tell Santa what they want for Christmas. Question: What is the main idea of the text? - What Santa Claus usually do on Christmas. - How Santa Claus got his names and image. - Different countries have different "Santa Clauses". - Everyone, especially children, love Santa Claus.
How Santa Claus got his names and image.

(Question)
Read the following article and select the best answer. Article: Lately, Bolivia has outlawed (......) the use of animals in circus performances, and officials in the South American nation aren't doing it in a silly way! They say all Bolivian circuses must stop using animals. Some people welcome the law. They say animals should not be forced to work and that circus creatures are caged in tight spaces when they travel. However, other people say that many of the four legged performers are cared for by animal experts. Plus, they point out, circus animals entertain millions of fans. Should animals perform in circuses? Student reporters Michael and Emily have done some work on the issue. Yes, I think animals should be allowed in circus acts. Most circus trainers love and respect the animals they work with and treat them well. Certain rules and regulations also help to ensure that the animals are treated humanely, or with kindness. Millions of people love circus animals. They look forward to seeing elephants and tigers perform. Many of the animals are exotic , so people might not get the chance to see them anywhere else. "Circus animals shouldn't be banned," says Parker, a sixth grader from Oregon City, "One of the main reasons people go to the circus is to see animals they don't see every day and to see them do cool tricks." Animals should not perform in circuses. When animals are in circuses, they are forced to learn new behaviors in order to entertain humans. Those behaviors may go against their natural instincts . For example, bears _ in the winter, but bears in a circus have to perform and can't hibernate as their bodies tell them to. Also, circus animals have to travel all the time in cages. All that traveling may cause them to become confused or upset because their environment keeps changing. "When animals are removed from their habitat and held in cages ... it changes their behaviors," points out Anne Northam, a teacher from Friendswood, Texas. "They are no longer selfsufficient ." Question: Which of the following can be a reason why people support the law? - Animals in circuses are given more respect and care. - Animals in circuses bring a lot of fun for people. - Animals in circuses can't live their life naturally. - Animals in circuses are protected by many regulations.
(Answer)
Animals in circuses can't live their life naturally.

Read the following article and select the best answer. Article: Cut out part of a healthy person's liver and transplant it into a sick person--it sounds like a complicated and dangerous operation , not to mention very expensive. But it is sometimes the only possible cure for a seriously ill patient with liver disease. Until now British scientists have just announced a new stem cell technique, which allows them to grow healthy liver cells outside human bodies. According to the researchers, it could be another five to ten years before the technique can actually be used to help patients with liver disease. However, they say the method might one day replace liver transplants altogether. The study was led by the University of Cambridge and the Welcome Trust Sanger Institute, a British genomics and genetics research institute. It was published in the journal nature on October 12,2011. The researchers took skin cells from a patient with a mutation in a gene called alphal-antitrypsin (a-l). This gene makes a protein that protects our bodies against inflammation . People with changed or damaged alphal-antitrypsin are not able to release the protein correctly from the liver, so the protein is trapped there and eventually leads to liver cirrhosis . Scientists then used an advanced technique to cut away the faulty section of DNA from a stem cell and replace it with a corrected one, according to the journal. The stem cells went on to produce fresh and healthy liver cells with normal protein levels. Scientists put the new liver cells into mice and found that they worked very well. Stem cells are the life source of all other cells in the body. They could transform medicine, providing treatment for blindness, spinal cord injuries and other serous injuries. They could also be used to produce new cells for damaged organs. David Lomas, a Cambridge biology professor who worked on the team, said: "If we can use a patient's own skins cells to produce liver cells that we can put back into the patient, we may prevent the future need for transplantation. " Question: Why do some people get liver cirrhosis according to the article? - Because their bodies are lacking in alphal-antitrypsin. - Because their skin cells are not able to protect against inflammation. - Because the alphal-antitrypsin in their bodies is changed or damaged. - Because their liver releases too high a level of protein.
Because the alphal-antitrypsin in their bodies is changed or damaged.