Read the article and select the best answer. Article: A breathtaking trick potentially left over from our ancestors might be found in us -- the ability to sense oxygen through our skin. Amphibians, animals such as frogs that can live both on land and in water, have long been known to be capable of breathing through their skin. In fact, the first known lungless frog that breathes only through its skin was discovered recently in the rivers of Borneo. Now the same oxygen sensors found in frog skins and in the lungs of mammals have unexpectedly been discovered in the skin of mice. "No one had ever looked," explained Randall Johnson, a biologist researcher. Mice and frogs are quite distant relatives, so the fact they have these molecules in common in their skin suggests they might well be found in the skin of other mammals, such as humans. "We have no reason to think that they are not in the skin of people too," Johnson said. These molecules not only detect oxygen, but help increase levels of vital red blood cells, which carry oxygen around the body. Normal mice breathing in air that is 10 percent oxygen--a dangerously low level similar to conditions at the top of Mount Everest, and about half that of air at sea level. However, mice that had the oxygen sensor HIF-1a genetically removed from their skin failed to produce this hormone even after hours of such low oxygen. These findings, if they hold true in humans, suggest one could raise the level of oxygen circulating inside the body. This could help treat lung diseases and disorders such as anemia without injecting drugs, which make up a multibillion-dollar market, Johnson said. Athletes also often try to get more oxygen delivered to their muscles in order to improve their performance. They often do this by training at high altitudes or in low-oxygen tents. The new study suggests they might want to expose their skin as well as breathing in low-oxygen air to improve their performance. "It's hard to say what exactly might be done, however--there's a lot we don't know yet," Johnson explained. The scientists... Question: What is Johnson's attitude to the application of the findings to the athletes' training? Options: A: Hesitating B: Doubting C: Positive D: Negative
C

(Question)
Read the article and select the best answer. Article: I've been writing for most of my life. The book Writing Without Teachers introduced me to one distinction and one practice that has helped my writing processes tremendously. The distinction is between the creative mind and the critical mind. While you need to employ both to get to a finished result, they cannot work in parallel no matter how much we might like to think so. Trying to criticize writing on the fly is possibly the single greatest barrier to writing that most of us encounter. If you are listening to that 5th grade English teacher correct your grammar while you are trying to capture a fleeting thought, the thought will die. If you capture the fleeting thought and simply share it with the world in raw form, no one is likely to understand. You must learn to create first and then criticize if you want to make writing the tool for thinking that it is. The practice that can help you past your learned bad habits of trying to edit as you write is what Elbow calls "free writing." In free writing, the objective is to get words down on paper non-stop, usually for 15-20 minutes. No stopping, no going back, no criticizing. The goal is to get the words flowing. As the words begin to flow, the ideas will come from the shadows and let themselves be captured on your notepad or your screen. Now you have raw materials that you can begin to work with using the critical mind that you've persuaded to sit on the side and watch quietly. Most likely, you will believe that this will take more time than you actually have and you will end up staring blankly at the pages as the deadline draws near. Instead of staring at a blank start filling it with words no matter how bad. Halfway through your available time, stop and rework your raw writing into something closer to finished product. Move back and forth until you run out of time and the final result will most likely be far better than your current practices. Question: One common concern of writers about "free writing" is that _ . Options: A: it overstresses the role of the creative mind B: it does not help them to think clearly C: it may bring about too much criticism D: it takes too much time to edit afterwards
(Answer)
D

Ques: Read the article and select the best answer. Article: Hu Li's heart sank due to the color of the air.Driving 140 kilometers from Tianjin City to Beijing last week,she held her breath as the air became a charcoal grey haze .The 39yearold businesswoman has lived in Beijing for a decade,and this past month,she said,brought the worst air pollution she has ever seen.It gave her husband a cough and left her sevenyearold daughter housebound ."My husband as well as I is working here,so we have no choice," she said."But if we had a choice,we'd like to escape from Beijing." The extended heavy pollution over the last month,which caused punishment in return for a day last week-called the "airpocalypse" by internet users- has largely changed the way that Chinese think about the country's air.On one day,pollution levels were 30 times higher than levels considered safe by the World Health Organization (WHO).Flights were cancelled.Roads were closed.One hospital in east Beijing reported they had treated more than 900 children for breathing issues.Bloomberg found that for most of January,Beijing's air was worse than that of an airport smoking area. The smog's most threatening aspect is its high concentration of PM 2.5 - particulate matter that is small enough to breathe deep into the lungs and enter the bloodstream,causing breathing infections,lung cancer and possibly damaging children's development.The WHO has estimated that outdoor air pollution accounts for two million deaths per year,65% of them in Asia. Question: From the passage we know high concentration of PM 2.5 _ . Options: A: can lead to choke B: can cause heart cancer C: will damage children's development D: will damage people's organ
Ans: D

Ques:Read the article and select the best answer. Article: Wanted Project Management Assistant Responsibility: Provide service for the project in Chongqing. Provide assistance to the project manager for everyday work. Responsible for file management, customer service for students & parents. Requirements: College degree and above. Good English and computer skill. Related working experience in an international organization. Patient, careful, supportive. Have strong team work spirit. English Teacher Responsibility: Conduct English teaching according to British education system. Requirements: University degree and above in English major or normal English. Eager to learn and open-minded with creativity. With deep understanding for different cultures. (Warmly welcome the fresh graduates to apply for this position.) Marketing Assistant Responsibility: Responsible for the local management of marketing & sales activities according to the instructions from the head office. Collect related information to the head office. Develop relationship with local media and customers. Requirements: College degree and above with good English (speaking & writing). With basic idea of sales and marketing, related experience is preferred. Working experience in the international organizations is a must. Good communication and presentation skills Accountant Responsibility: Accountant work for Chongqing office and project. Perform the finance management locally according to the rules & policy of the company. Requirements: College degree and above in finance area. Good English and good computer skill. Have sense of finance management. At least 2 years' experience as an accountant in an international organization is a must. Self-management, hardworking, independent and able to deal with pressure. You can go to _ for more information. Please mail or fax your resume (both in English & Chinese), diploma, training certificates and expected salary to the following address within two weeks. No personal visit or telephone call before that. Your materials will be kept in ACE files. Add: Room 1806 Plaza... Question: If you have just graduated from a university, you should apply for the position as _ . Options: A: a project management assistant B: an accountant C: a marketing assistant D: an English teacher

Ans:
D