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wers have zeroed in on plastic sixpackring packaging partly because most consumers can recall the miserable image of a seagull, turtle, or some other aquatic(水生的)creature trapped or killed by the plastic rings. The packaging is so deeprooted in our culture that many children were taught to cut up the rings to lessen the chance that an animal might choke itself to death.The rings developed by E6PR(Edible Six Pack Ring) programme, which is led by another brewery called Saltwater, are now used by 35 brewers across the globe, including in Africa,Europe,and Australia. These rings are made of waste wheat in beer production. The final goal is to ensure that the rings can be eaten harmlessly by aquatic creatures or break down in nature within a matter of weeks rather than the years it would take for plastic. Giving up plastic straws and beer rings may help consumers feel better about their carbon footprint,but some experts say we should focus on other efforts. Recycling rates in the U. S. stand at just over 34%. Glass, in which many brewers bottle their beer, can be difficult to recycle and large to transport. If brewers were to focus on using thinner glass, some experts say, the improvement could prove even more beneficial to. the environment than giving up plastic rings.There39。s also the risk that if consumers think their E6PR rings are less harmful, they39。ll be more likely to litter. “The idea of creating something that39。s litterfriendly is an issue in my mind,says Nina Goodrich, executive director of environmental nonprofit GreenBlue. “What we need in North America is a better system to encourage collection and sorting.”28. What does the underlined word “adhere” in paragraph 1 mean?. . Open. .29. Why were children taught to cut up the plastic rings? collect the rings for recycling. make the rings break down more easily. prevent the rings harming aquatic animals. increase children39。s awareness of loving nature.30. What does the author intend to tell us in paragraph 4?A. Low recycling rates in the . of giving up plastic beer rings. in transporting beer glass bottles.D. Another way to protect the environment.31. What39。s the risk of the E6PR rings?A. They will be thrown away more casually.B. They will not be accepted by consumers.C. They will be more difficult to recycle.D. They will be still made of plastic.DAstronauts on the International Space Station will soon test a new oven for making chocolate chip cookies. A spaceship carrying the cooking equipment and other supplies was launched on Saturday from the Wallops Flight Facility in the United shipment,weighing 3,700 kilograms,reached the space station on Monday. The goal is to explore the possibility of making freshly baked cookies for space travelers.American pany Nanoracks designed and built the oven and helped with organizing the flight to the space station. Hilton DoubleTree hotels supplied the cookie dough(生面團)the astronauts will use.In the past,space station crews have created their own pizzas using a thin,flat piece of bread known as flatbread. Astronauts have tried other creative ways to make food, such as creating salads from vegetables grown in the space station. Results have been mixed.The cookie baking will be a slow process. The oven can heat just one cookie at a time. The test could take weeks before the astronauts have chance to try out freshly baked cookies. Five unbaked cookies have been in a space station freezer for several weeks. Each is in its own individual clear bag made out of silicone. The oven can heat foods to temperatures as high as 177 degrees Celsius. That is twice the temperature of the . and Russian food warmers on the space station. The oven uses electric h