Ques: Showering typically sends water down the drain, but a new space-age shower could change that. The design, inspired by NASA, saves water and money. Astronauts have no choice but to recycle the water they use in space. _ This futuristic shower comes from Orbital Systems, a Swedish advanced technology company. Its CEO, Mehrdad Mahdjoubi, invented the product. "The shower of the future is a water-recycling shower, thus enabling water savings up to 90 percent, energy savings up to 80 percent, at the same time increasing comfort and hygiene. The water is being collected in the drain, it's being analyzed, purified and then pumped back up to the shower head. So what is so special about the purification technology? Well, it's based on a patented purification capsule system that makes sure that the water is always crystal clear," he explained. Mahdjoubi was inspired by a project between NASA and Sweden's Lund University to come up with designs for a mission to Mars. He adapted the closed-loop system that allows astronauts to re-use shower water again and again. The product already has been tested in Sweden, where it saved up to 100,000 liters of water over four months. Based on those results, Mahdjoubi is confident his company can distribute the shower system worldwide. "Our market is anyone who takes a shower, actually, and the biggest benefit it gives is to the market segment where the water consumption is the highest, such as bathing establishments, gyms, sports centers. Also, private households where the water consumption and the prices are high," said Mahdjoubi. The "out of this world" design has won several business and innovation Why does the author write the passage? A) To introduce a new technology B) To find a way to save energy C) To promote a new product D) To seek for investment
Ans: C

Ques: Dear David,   My daughter will be five years old. She is happy, well-mannered, loving and pretty. She has attended a Montessori school since she was 16 months old and has made two friends. The three girls are always together, or talking with each other.   But recently the girls told my daughter that they would not play with her if she kept playing with the boy who was disliked by most of the class. My daughter always finds good things in others and insisted they play with him, too. Then one of the friends told my daughter she didn't have straight hair and shouldn't play with them. Then she started ignoring my daughter. My mother-in-law decided to iron my girl's beautiful curly hair .    With her birthday coming, my child decided to invite her friends to her party. When I asked her why, she said because they were always together, but I know one of the girls will not attend her party.      I'm concerned about her. I feel lost, not knowing how to help my child.                                                                             Jenny Dear Jenny,    It's always painful to a mother when someone hurts her child. Your daughter's friends weren't nice to her, but little kids are still learning how to get along with others. As a result, young friendships are often fleeting, even changing from day to day. Your daughter seems to be remarkably loving, outgoing and mature  beyond her years. Perhaps you need to be proud of the way she treats people. Ironing your daughter's hair won't send your daughter or the other girls a good message. It implies that there is something wrong with the way she is. You have no choice but to let your daughter know that one of the girls won't be attending her birthday party. If she seems upset, remind her that other friends will be there. My guess is that she will rise to the occasion. Hope this helps.                                                                        David What's the mother's problem? A) Her daughter doesn't respect other kids B) Her daughter seems to be loosing her friends C) Her daughter cares too much about her friends D) Her daughter doesn't know how to deal with others
Ans: B

Ques: Plants may not have eyes and ears,but they can recognize their siblings  ,and researchers at the University of Delaware have discovered how.The ID system lies in the roots and the chemical signals they secrete  . Canadian researchers published that sea rocket,a common seashore plant,can recognize its siblings.Susan Dudley observed that when siblings are grown next to each other in the soil,they "play nice" and don't send out more roots to compete.However,the moment one of the plants is thrown in with strangers,it begins competing with them by rapidly growing more roots to take up the water and mineral nutrients in the soil. After reading Dudley's study,Bais decided to find the method behind the sibling recognition.Working in his laboratory,Bais and his doctoral student Meredith Biedrzycki set up a study with wild populations of Arabidopsis thaliana.In a series of experiments,young seedlings were exposed to liquid media containing the root secretions from siblings,from strangers,or only their own secretions.The length of the longest lateral   root was measured.The exposure of plants to the root secretions of strangers induced   greater lateral root formation than exposure of plants to sibling secretions.Strangers planted next to each other are often shorter,because so much of their energy is directed at root growth.Because siblings aren't competing against each other,their roots are often much shallower  . Biedrzycki did the _ laboratory research,observing more than 3,000 plants involved in the study every day for seven continuous days and documenting the root patterns."Arabidopsis roots are nearly translucent   when they are young and were also twisted when I removed them from plates,"Biedrzycki notes."This manuscript   is very important for my research since the focus of my thesis project is understanding the biochemical ways behind root secretions." The research also may have implications for the home gardener."Often we'll put plants in the ground next to each other and when they don't do well,we blame the... Which of the following would be the best title for this passage? A) A Great Biology Researcher B) Plants Recognize Their Siblings C) Plants' Roots and Secretions D) A Research on Plants
Ans:
B