The US company iRobot made a new kind of sub-marine  , called the Seaglider, last week.     The robotic submarine was developed by researchers at the University of Washington. It is about 1.8 meters long and weighs about 52 kilograms. It moves through water at a speed of up to 20-25 kilometers a day and can stay at sea for up to six months before needing a battery recharged. This special character results from its special propulsion system  . Unlike a traditional submarine, the Seaglider does not have a propeller  . It has an air tank that is emptied and filled to adjust   depth, as well as a pair of wings that help to guide and lead the submarine.     A traditional submarine, on the other hand, "puts water inside tanks to make it heavier, or it will expel   the water to make it lighter," explained Frederick, a professor at the University of Washington.     Each time the Seaglider comes to the surface, it sends the data which it collects to its controllers by satellite. Operators can also send the submarine new information. For example, they can change its course in their office through giving the computer orders.     Seagliders are already being used for scientific research, such as environmental studies. iRobot also hopes to sell the submarine to the military  . At $100,000 each, the Seaglider is a cheap way to keep an eye on the ocean.     "These things can go out there and monitor   large areas of ocean because they're very persistent. They can go for thousands of miles on their own. At the same time, you can tell them to stay in one place and they can circle," says Helen Greiner, chairwoman of iRobot. "This is science fiction stuff in many ways, but it's really out there and working." When the Seaglider comes to the surface, it will   _  . A) change its battery B) send the data to its controllers C) force out a lot of water D) stay in one place
B


(Question)
Welcome to one of the largest collections of footwear in the world that will make you green with envy. Here at the Footwear Museum you can see exhibits from all over the world. You can find out about shoes worn by everyone from the Ancient Egyptians to pop stars. Room 1 The celebrity footwear section is probably the most popular in the entire museum. Started in the 1950s there is a wide variety of shoes and boots belonging to everyone from queens and presidents to pop stars and actors! Most visitors find the celebrities' choice of footwear extremely interesting. Room 2 Most of our visitors are amazed--and shocked--by the collection of "special purpose" shoes on exhibition here at the Museum of Footwear. For example, there are Chinese shoes made of silk that were worn by women to tie their feet firmly to prevent them from growing too much! Room 3 As well as shoes and boots, the museum also exhibits shoeshaped objects. The variety is unbelievable. For example, there is a metal lamp that resembles a pair of shoes, and Greek wine bottles that look like legs! The Footwear Library People come from all over the world to study in our excellent footwear library. Designers and researchers come here to look up information on anything and everything related to the subject of footwear. Where would you find a famous singer's shoes? A) Room 1. B) Room 2. C) Room 3. D) The Footwear Library.
(Answer)
A


Ques: What should college life be like? Easy, joyful and fun? Unfortunately, facing heavy pressure  from a _ job market, many students know that they are facing an even more uncertain future and they are beginning to feel lost, according to a survey. The research, conducted by the Social Survey Institute of China, covers more than 2,000 college students from big cities. The report shows that about 75 percent enjoy their lives on campus. However, there are still 16.7 percent "lost ones" who think life is boring and aimless, while 8.3 percent complain that they have too much to study. Around half of the participants have no clear career plan after graduation and 41.7 percent say that they have not thought about it. Only 8.3 percent have a clear blueprint   and believe that they can realize their dreams. 58.3 percent of the participants gave a sure answer to the question "Are you a popular guy?",  leaving 41.7 percent as unsure. 91.7 percent of the students thought they could get along very well with others, the final 8.3 percent finding it difficult to choose a particular answer. Answers such as "doing things your own way" and "forget other people's opinions" seemed to be popular among modern college students, with 75 percent agreeing with this attitude. 25 percent said that they worried about opinions of other people. Objecting to the feeling in Suicide is Painless, most students criticize suicide on campus. 58.3 percent urged school leaders to discover hidden social reasons behind suicide, thus helping to prevent it. 33.3 percent thought students who did suicide couldn't face life's bigger challenges in the future even if they survived. Surprisingly, 8.3 percent admitted that they once wanted to kill themselves, but finally decided against it. Which of the following questions is NOT included in the survey? A) Do you enjoy your life on campus? B) Do you have a clear career plan after graduation? C) Are you a popular guy? D) Do you have a boy friend or girl friend?
Ans: D


Ques: I grew up with a fat dad--450 pounds at his heaviest.Every week he would try a new diet,and my family ended up eating whatever strange food he was trying at that moment. After my thirdgrade year,my dad landed a lifechanging job in Manhattan.My mom,my little sister and I had to move away from our hometown,Chicago,and leave my grandmother and her beautiful food behind. Leaving my grandmother was far more frightening than the move to New York City.There would be no more special weekends at my grandmother's house,the only place I can remember feeling happy,safe and nourished  .It was what I desired.In this new city,I felt extremely alone and lost,and I missed my grandmother terribly. My grandmother knew just how I felt--And she knew the _ .Every week,she would send me a card with a $20 bill,a recipe and a list of what to buy at the market.It kept us bonded,and her recipes filled my body and soul. Over the years,I have grown to better understand my father's struggles with weight and the toll   it took on him and those who love him.I have come to realize he was driven not by vanity   or selfishness as much as by a deep pain.And in spite of growing up in such an unhealthy eating environment (or perhaps because of it),as an adult I found a passion and a career as a nutrition consultant. Today,my father weighs 220 pounds and is a vegan  .How he got there is a story I hope to share in the coming weeks.More importantly,food is no longer a barrier that keeps us apart,but a bridge that keep us connected.There is nothing my dad enjoys more than talking with me about dietary theories and his weightloss victories.And now I am the one regularly sending recipe cards to my father's house,just as my grandmother did for me. The author desired to go to his grandmother's  _  . A) to see his father B) for tasty food C) for pocket money D) to avoid his family
Ans:
A