【正文】 in the enjoyment of spending their well－earned cash.ElephantAs your children use the mobile app to plete various actions—achieving savings goals, pleting missions and achieving wishes—here various medals will be rewarded.Earned medals are displayed in the elephant habitat as well as locked medals still to be achieved.LeopardReward your kids with pocket money for pleting ‘missions’： household chores, achievements, etc.You can create a mission for your child, or your child can request a new mission. Once created, it must be accepted. The mission needs to be pleted by your child and approved by you before you can pay him or her.LionHelp your children create and fulfil wishes. Wish cards and their savings progress can be tracked from your banking app.Once their savings goal is reached, lion will inform you of their achievement.BuffaloKidz can request to withdraw cash or purchase airtime and data using their savings.RhinoRhino shows your child’s latest account balance and transactions.Download the Standard Bank’s Kidz APP from Apple App Store on the phone. Use the ment section to interact with other Standard Bank customers and bank consultants.21. What is the WHO’S WHO IN THE ZOO designed for?　　　　　　　　　　　　　　　　　　　　　　　　　　　　　A. Players of board games. B. Travelers in the zoo.C. Parents for online banking. D. Kids for self－service banking.22. Rewards will be paid if ________．A. you keep the account balancedB. your kids get enough locked medalsC. the kids fulfil your created missionsD. you approve the request via Kidz APP23. Which of the following animals is related to spending?A. Rhino. B. Buffalo. C. Lion. D. Leopard.BWhile staring out of the window during a flight, not everyone will think carefully about the question why airplanes have rounded windows rather than square ones.Over the years, aerospace engineering has made huge steps in airplane technology, meaning planes can carry more passengers and go faster. The planes have also changed shape to increase safety—including the windows. As mercial air travel took off in the mid－20th century, airline panies began to fly at higher altitudes to lower their cost—the air density(密度) is lower up there, creating less drag(阻力) for airplanes. However, higher altitudes came with problems, like the fact human beings can’t really survive at 30，000 feet. To make that possible, the cabin was changed to a cylindrical(圓柱體) shape to support the pressure inside. But at first, plane builders left in the standard square windows and this expansion meant disaster. The de__Havilland__Comet came into fashion in the 1950s. With a closed cabin, it was able to go higher and faster than other aircraft.However, where there’s a corner, there’s a weak spot. Windows, having four corners, have four potential weak spots, making them likely to crash under stress—such as air pressure. By curving the window, the stress that would eventually break the window corner is distributed and the chance of it breaking is reduced. Rounded shapes are also stronger and resist deformation(變形), and can thus survive the extreme differences in pressure between the inside and outside of the aircraft.Fortunately, designers figured out the lack of design pretty quick. Now we have nice, rounded airplane windows that can resist the pressure of traveling altitude. It gives being able to gaze out of your window to the world from 35，000 feet a whole new outlook, doesn’t it?24. Why did airlines aim to fly at higher altitudes?A. To save money for less drag.B. To help the plane to take off.C. To increase safety of the plane.D. To carry more passengers and go faster.25. What does the underlined words “de Havilland Comet” in Paragraph 2 refer to?A. An aircraft. B. A band. C. A planet. D. A design.26. Which is the advantage of the rounded window?A. It increases the air pressure.B. It weakens the strength of air pressure.C. It reduces the possibility of breaking up.D. It helps to survive the extreme weather.27. Where does this text e from?A. A newspaper on safe driving. B. A science book on flying.C. A website on survival skills. D. A magazine on fashion design.CThe hemlock(鐵杉) trees along the Wappinger Creek, New York, look healthy. However, scientist Gary Lovett says the white balls which provide protection for the bugs are created by a tiny insect. It’s hard to believe the tiny bug could kill a tree. However, trees can end up with millions and millions of the pests. When there are that many, it ends up killing the tree.The bug from East Asia is slowly killing trees across the USA. The trouble－making bug is just one of many invasive(入侵的) pests that have slipped into the United States. They can hurt other living things in their new home.Many invasive pests arrive on wooden pallets piled inside shipping containers. They support and separate goods, and keep them from sliding around. Invasive pests often tunnel into the pallets. How can we stop pests from riding on pallets? Lovett says new rules are needed. The panies that make pallets don’t want more rules. Congress has added an amendment(修正案) in the 2018 Farm Bill to try and prevent this problem. However, Lovett is not hopeful it will make much of a difference. Pallets are checked by inspectors. Many are sprayed with bug－killing pesticide. “I believe in the system，” said Brent McClendon, president of The National Wooden Pallet and Container Association. He also said shipping containers are checked very carefully.Still, each year 13 million containers are shipped to the U．S. Each is full of wooden pallets. Lovett says: “Inspectors can’t possibly check everything. All it takes are a few bad pallets。s because most are actually groups of storms with plex wind patterns. There39。Our teachers tried teaching us about death during nursing training. As a student nurse, I knew I would see death in my __41__. I had no idea of the __42__ it would have on me, __43__．