Read the article and select the best answer. Article: Against the supposition that forest fires in Alaska, Canada and Siberia warm the climate, scientists have discovered that cooling may occur in areas where burnt trees allow more snow to mirror more sunlight into space. This finding suggests that taking steps to prevent northern forest fires to limit the release of greenhouse gases may warm the climate in northern regions. Usually large fires destroyed forests in these areas over the past decade. Scientists predict that with climate warming, fires may occur more frequently over the next several centuries as a result of a longer fire season. Sunlight taken in by the earth tends to cause warming, while heat mirrored back into space tends to cause cooling. This is the first study to analyze all aspects of how northern fires influence climate. Earlier studies by other scientists have suggested that fire in northern regions speed up climate warming because greenhouse gases from burning trees and plants are released into the atmosphere and thus trap heat. Scientists found that right after the fire, large amounts of greenhouse gases entered the atmosphere and caused warming. Ozone levels increased, and ash from the fire fell on far-off sea ice, darkening the surface and causing more radiation from the sun to be taken in. The following spring, however, the land within the area of the fire was brighter than before the fire, because fewer trees covered the ground. Snow on the ground mirrored more sunlight back into space, leading to cooling. "We need to find out all possible ways to reduce the growth of greenhouse gases in the atmosphere." Scientists tracked the change in the amount of radiation entering and leaving the climate system as a result of the fire, and found a measurement closely related to the global air temperature. Typically, fire in northern regions occurs in the same area every 80 to 150 years. Scientists, however, found that when fire occurs more frequently, more radiation is lost from the earth and cooling results. Specifically, they determined when... Question: .According to the new findings, taking steps to prevent northern forest fires may _ . Options: A: result in a warming climate B: cause the forest fires to occur more frequently C: lead to a longer fire season D: protect the forests and the environment there
A

Read the article and select the best answer. Article: Charlie works in a post office. His father lost his job five years ago and his mother is often ill. And he has two brothers and a sister. He works hard and tries his best to buy enough food for his family. Last month his family had to move to an old house outside the city. It's farther from the post office and he has to get up early in the morning in order to catch the 6:30 train. The head of his office is strict and everybody has to get there on time. He knows what it'll mean if he's late. A friend of his had pity on him and lent his old car to him. The young man was happy and from then on he could go to work by car. Last Saturday Charlie went to buy some medicine for his mother. Bad luck! When he came out of the shop, he couldn't find the car. He was quite worried and began to look for it in front of the shop but he didn't find it. Suddenly he saw a woman parked a car there and hurried into the shop. Charlie saw the car wasn't locked. He got on it and drove it at once. He was afraid the loser would run after him and drove fast. A truck hit it at a crossing and he lost consciousness. This morning the young man came back to life and saw there were a few policemen standing by his bed. He asked, "Where am I?" "In Room 103." "In hospital or in prison ?" Question: Charlie has to get to his office on time because _ . Options: A: the head is strict with them B: he wishes to be praised C: he's usually on duty D: he's afraid to be fired
D

Q: Read the article and select the best answer. Article: You surely want to take a good school yearbook photo, for you only get to do it once, and it's what people remember you by for the whole school year. Learn how to look good and look natural in your yearbook photo with these simple tips. 1. Practice smiling in a mirror. It sounds crazy, but figuring out how to make a natural looking smile for the camera does need a little preparation. Don't be shy! Just imagine you are in front of a camera --hold your head high, look straight into the mirror and smile. Keep practicing until you find out your most attractive smiling face. 2. Choose your color wisely. In yearbook photos, lots of people look good in darker colors because they draw attention to the face. Generally, white often isn't the best choice because it can make your skin look a bit gray, especially if you're pale. Besides, stay away from super -bright colors ( bright yellow, bright blue) unless you're really sure they make you look perfect. 3. Avoid unnecessary details. Busy patterns draw attention to themselves in yearbook photos, not to your face and smile. Save them for your everyday fashion experiments. Besides, have your clothes prepared for the day when the yearbook photo is taken. The last thing you want to do is pick out the perfect thing to wear, only to find that it's in the laundry. 4. Avoid big changes to your appearance. Big changes may not turn out the way you hope. Leave some time to do your hair, such as combing it up right before the yearbook photo is taken. Don't overdo it, since you want your hair to stay in one place and your face to draw all the attention, but go for the "less is more" approach. Question: The best title of this passage is _ . Options: A: How to Make Yourself Look Good B: How to Do When Taking a School Photo C: How to Get Ready for Your School Photo-taking D: How to Make a Good School Photo Book
A: C

Q: Read the article and select the best answer. Article: Beijing opera or Peking opera (Pinyin: Jingju) is a form of Chinese opera which arose in the late 18th century and became fully developed and recognized by the mid-19th century.The form was extremely popular in the Qing Dynasty court and has come to be regarded as one of the cultural treasures of China.Major performance troupes (,) are based in Beijing and Tianjin in the north,and Shanghai in the south.The art form is also enjoyed in Taiwan,and has spread to other countries such as the United States and Japan. Beijing opera features four main types of performers.Performing troupes often have several of each variety,as well as numerous secondary and tertiary performers.With their elaborate (,) and colorful costumes,performers are the only focal points on Beijing opera's characteristically small stage.They make use of the skills of speech,song,dance,and combat in movements that are symbolic and suggestive,rather than realistic.Above all else,the skill of performers is evaluated according to the beauty of their movements.Performers also hold a variety of stylistic conventions that help audiences navigate the plot of the production.The layers of meaning within each movement must be expressed in time with music.The music of Beijing opera can be divided into the Xipi and Erhuang styles.Melodies include arias ,fixed-tune melodies,and percussion patterns.The repertoire of Beijing opera includes over 1,400 works,which are based on Chinese history,folklore,and,increasingly,contemporary life. In recent years,Beijing opera has attempted numerous reforms in response to sagging audience numbers.These reforms,which include improving performance quality,adapting new performance elements,and performing new and original plays,have met with mixed success.Some Western works have been adopted as new plays,but a lack of funding and an adverse political climate have left Beijing opera's fate uncertain as the form enters the 21st century. Question: How many art forms of Beijing Opera at present? Options: A: Two including Beijing and Tianjin,and Shanghai in the south. B: Two including Beijing and Tianjin in the north. C: Three including Beijing and Tianjin,and Shanghai in the south and Taiwan. D: Five including Beijing and Tianjin,and Shanghai in the south,Taiwan,US and
A: A