Ques: Article: Scientists who discovered a new way of generating electricity from water say they may have come across an alternative source of clean energy to rival wind and solar power. The breakthrough, which scientists say is the first new way to generate electricity in 160 years, could lead to batteries that use water instead of poisonous substances. The scientists made the discovery when they were investigating what happens when tap water is forced through extremely narrow glass tubes. Water squeezed down the tubes, each of which was narrower than a tenth the thickness of a human hair, generating a small electric current that ran the length of the tube. To produce a larger electric current, the team tried forcing water through a glass water filter that contained thousands of narrow channels lined up side by side. "When we took a syringe of water and squeezed it through the filter, we got enough power to light a light bulb," said Larry Kostiuk of the University of Alberta in Canada. "The harder you push the syringe, the more electric current you get." The current is produced because of an effect in the glass tubes. When they are filled with water, positively charged ions fixed in the tubes are washed away, leaving a slight negative charge on the glass surface. When water is then forced along the tube, the surface _ negatively charged ions in the water while positively charged ions are attracted down the tube. The result is a net flow of positively charged ions that sets up an electric current. According to Dr Kostiuk, no one has ever thought to use water to produce electricity in this way. "The last time someone came up with a way of generating electricity was Michael Faraday in 1839," he said. "So this is the first new way of generating electricity in 160 years, which is why we are so excited about it." Dr Kostiuk says water batteries might one day be used to power mobile phones and calculators, but admitted that the engineering challenges might make other applications more realistic. "You'd need to be sure it wouldn't... Question: What does the passage mainly want to tell us about? Yes or no, is the answer "A kind of new energy source found in tap water."?
Ans: No

Ques: Article: I am not just a successful architect . I also like to play the piano. In my spare time I often turn some dry musical symbols into beautiful music. Many years ago, while I was in a university studying architecture, I worked in a workshop. During the break I found an old piano in the corner of the room. With the allowance of the boss I sat down to have a try. Following my fingers the keys danced brilliantly and at the same time beautiful music flew out and then to every part of the room. All my workmates suddenly stopped talking and made their ears ready for my music. After graduation, I began to devote myself to my profession. All my musical talent was wasted into zero. Then one evening we went to a concert at which Mr. Stevenson, one of the ordinary workers in my company, sang us some beautiful songs. His musical talents made us all surprised. We all enjoyed ourselves with his beautiful voice so much that we even thought him a professional singer. I was also reminded of my musical talent. I began to train in a training center. My teacher was strict with me. He encouraged me to train every weekend and each time he asked me to play better than the last. Now I can proudly say I am also a successful pianist because every time I played on the stage fresh flowers and warm clapping would come from my audience. So I say, my friends, don't busy yourself with your work too much. Find some time to develop your potential talent and your life will become more wonderful. Question: What is the author's aim in writing this passage? Yes or no, is the answer "He wanted to tell us to develop our potential talent instead of busying ourselves with our work only."?
Ans: No

Ques: Article: Eve was waiting in the corridor outside her class.She was feeling sick.She had two exams that day and physics was first.She really hated physics.It was her worst subject.Lisa looked back at her, and then looked away quickly.Eve thought she looked guilty.She didn't have a problem with physics.She didn't have a problem with anything...Miss Perfect! "Hi, Eve! So what's wrong with you and Lisa?"asked Tina,"I thought you were friends.""Yes, so did I," said Eve."But she hasn't spoken to me for two weeks now.She promised to help me review for the physics exam too, but then she's ignored all my calls and texts." While in the exam, Eve found Lisa was holding her phone on her knee under the table and reading from it.Eve couldn't believe it! Is that how Lisa always got such good grades? She thought about telling the teacher, but she hesitated.The next exam was history.That was Eve's favorite subject but she couldn't concentrate.She didn't know what to do about Lisa.Just then, Mr.Reed, their teacher, walked past."Mr.Reed..." Lisa was called to the teachers' office and there waited Mr.Reed... The history test was over.Eve was walking towards the school gate when she heard footsteps behind her.It was Lisa.Eve could see that she had been crying."Listen," said Lisa."I'm really sorry I haven't answered your calls, but my dad had a heart attack two weeks ago and he's in hospital.He had a big heart operation today and I was very worried about him.So I was reading texts from my mum, but Mr.Reed caught me.He thought I was cheating.He believes me now, but I have to take the exam again.I'm sorry I didn't tell you what was happening.Will you forgive me?" Question: Lisa didn't help Eve review for the physics exam because _ . Yes or no, is the answer "she had to look after her sick father"?
Ans: No

Ques: Article: Workers who commute by car, bus or train to the office are more likely to suffer from stress and exhaustion, according to a study. Scientists studied 12,000 employees aged between 18 and 65.They found that those who traveled to work by car or public transport reported higher levels of stress and tiredness compared to active commuters who traveled by foot or bicycle. The negative health of public transport users increased with journey time. It is now expected that the study, from Lund University in Sweden, will encourage further investigation into the health effects of commuting and the best forms of transportation. Researcher Erik Hansson said:"Generally car and public transport users suffered more everyday stress, poorer sleep quality, exhaustion and felt that they struggled with their health compared to the active commuters." According to the Office for National Statistics, the average Briton commutes 54 minutes every day. But now the scientists claim that the advantages of daily travel, such as higher pay or housing conditions, need to be weighed against the negative health effects. Income, family background and environmental factors are other things that need to be considered. It may also have a cost effect on industry. According to a Absence and Workplace Health Survey, the U.K. economy lost 190 million working days to absence last year, with each employee taking an average of 6.5 days off sick, costing employers US$27 billion. Hansson added that findings would help to reconsider the balance between economic needs, health, and the costs of working days lost. However, researchers stress that the findings, published in the journal BMC Public Health, do not prove that commuting causes ill health and further research is needed. Question: The purpose of this writing is to _ . Yes or no, is the answer "present the result of a study"?
Ans:
Yes