【正文】 tton on a keypad and the drone automatically flies to one of two wait stations. Senseandavoid technology 25 (build) into the drone won?t allow it to land at the wait station if anything is in its way. The drones are equipped with sonar (聲納系統(tǒng) ) and an infrared sensor (紅外線傳感器 ), too. A waiter then removes the food or drink from the drone and hits a button 26 sends it back to the kitchen. The drones, weighing a little over five pounds, 27 carry just over four pounds of food. Infinium Robotics is working on a model that will carry twice as 28 (much) food. “Its job is to help the waiters to reduce some of their boring tasks, ” Woon said. “If they let the robots 29 (do) the job, they can concentrate on interacting with customers to bring about higher customer satisfaction and dining experience.” Since it drew recent media attention, Woon 30 (hear) from resorts and restaurants in 10 countries, including the United States. Section B Directions: Fill in each blank with a proper word chosen from the box. Each word can only be used once. Note that there is one word more than you need. A. keep B. market C. issue D. perspective E. relevant F. avoid G. develop H. switch I. natural J. responsible K. code FDA OKs Geically Modified Salmon for Human Consumption The Food and Drug Administration (FDA) on Thursday approved geically modified salmon (轉(zhuǎn)基因的三文魚 ), the first such altered animal allowed for human consumption in the United States. The government had tried to 31 approving the fastgrowing salmon for more than five years due to consumer concerns about eating geically modified foods. But the agency said Thursday the fish is safe to eat. In announcing the approval, the FDA said that there are “no biologically 32 differences in the nutrition of AquAdvantage Salmon pared to that of other farmraised Atlantic salmon.” AquAdvantage Salmon was created by the Massachusettsbased pany AquaBounty. Ron Stotish, the pany?s CEO, said in a statement that the fish is a “game changer that brings healthy and nutritious food to consumers in an environmentally 33 manner without damaging the ocean and other marine habitats.” The fish grows twice as fast as normal salmon, so it reaches 34 size more quickly. It has an added growth hormone (激素 ) from the Pacific Chinook salmon that allows the fish to produce growth hormone all year long. The engineers were able to 35 the hormone active by using another gene from an ocean pout (a kind of fish) that acts like an “on” 36 for the hormone. Typical Atlantic salmon produce the growth hormone for only part of the year. There is no evidence that the foods would be unsafe, but for some people, it?s an ethical (倫理的 ) 37 . Some people have promised not to sell the salmon, and it?s still unclear whether the public will 38 an appetite for the fish if it is approved. Geic engineering is already widely used for crops, but the government until now has not considered allowing the consumption of modified animals. Although the potential benefits and profits are huge, many people have doubts about controlling the geic 39 of other living creatures. Critics worry that it could cause human allergies (過敏 ) and the eventual extinction of the 40 salmon population if it escapes and breeds in the wild. III. Reading Comprehension Section A Directions: For each blank in the following passage there are four words or phrases marked A, B, C and D. Fill in each blank with the word or phrase that best fits the context. More Parents Shifting Careers to Achieve Worklife Balance As a television news host, Cynthia Demos? schedule made her home life a challenge. Working nights and weekends meant she rarely put her 3yearold son and 5yearold daughter to bed, or spent Saturdays at the park. So, three years ago, Demos began testing the waters to see if operating her own business making marketing videos would create an option for more 41 time. Last month, Demos took a leap. Instead of renegotiating her 42 , she left her job to take her venture to the next level — building her own video production/media training pany. It?s a career shift on a path to worklife balance that more 43 are making. New research shows the top reason why people leave their jobs is to 44 opportunities with a better worklife balance. Those who make the 45 say there almost always is a main cause, either work or homerelated. It could be a lifechanging event like the birth of a child, or it could be a new demanding boss, change in job responsibilities, or too many missed milestone events. It might even be a more 46 job offer. For Denie Harris, the main cause was the attraction of a better 47 situation for a mom with young daughters. Harris had been marketing director for two panies in South Florida when an opportunity came her way to hold a similar position at her daughters? school. It was a decision that required 48 all factors. The upside included seeing her children during the workday and sharing the same 49 with them. The downside was leaving the corporate world and earning less. “Everything in life is a giveandtake,” Harris says. “For a mom, working at your children?s school is the best possible place to be.” In the 50 to achieve worklife balance, working mothers having been “