It's easy to check the sell — by dates when you go shopping, so that you know how long you can
英语试题 02-03
It's easy to check the sell — by dates when you go shopping, so that you know how long you can store and use the food you are buying. But did you know that the best sell — by dates on food packaging don't really tell you if the food is safe to eat? Food can last longer or on the other hand, the food may not last as long as it says if it wasn't stored correctly at any point of the distribution chain （分销连锁店）.Now there is a food packaging that works well to solve the problem.
Americans waste 103 pounds of spoiled food, which has gone bad, out of their refrigerators every year. The new smart packaging from Primitives Biodesign - a company that is mainly concerned with biotech in San Francisco - can help to reduce this huge waste of food.
This all-female team of scientists, engineers, and bio-designers of Primitives Biodesign spent months developing this new bio-based smart packaging that responds to environmental and safety changes in the food. It will respond by changing colors to tell you that food is no longer safe. Since it is made from a natural substance, it can also break down in nature.
Making the packaging smart is the difficult part. They put much manpower and fund into it. Here the team used a process that acts as the way nature responds to changes in the environment. According to the company, it responds like the way a pinecone responds to wet air by releasing seeds or the way flowers send compounds （混合物）to change colors.
The company has proven in lab tests that the technology works and now they are working on how to develop commercial（商业的）uses for it. The added safety features of the smart packaging will come out later, which will help control food waste in products like meat or cheese which have high greenhouse gas emissions （排放量）so as to help reduce the impact on climate change.
24. What can we know from Paragraph 1 ?
A. Few products show dependable sell — by dates.
B. Food is surely safe to eat within the use — by dates.
C. Storing food correctly is important for their safety.
D. People can know about food safety from their appearance.
25. What's the current use of the new smart packaging?
A. Making （bod stay fresh longer.
B. Reminding people of spoiled food.
C. Recording the amount of wasted food.
D. Adjusting food temperature by changing colors.
26. According to the last paragraph, what is Primitive Biodesign doing now?
A. Finding buyers for the smart packaging.
B. Raising money for environmental protection.
C. Doing experiments to test the new technology.
D. Making the smart packaging practical and greener.
答案
24 -26 CBD
Americans waste 103 pounds of spoiled food, which has gone bad, out of their refrigerators every year. The new smart packaging from Primitives Biodesign - a company that is mainly concerned with biotech in San Francisco - can help to reduce this huge waste of food.
This all-female team of scientists, engineers, and bio-designers of Primitives Biodesign spent months developing this new bio-based smart packaging that responds to environmental and safety changes in the food. It will respond by changing colors to tell you that food is no longer safe. Since it is made from a natural substance, it can also break down in nature.
Making the packaging smart is the difficult part. They put much manpower and fund into it. Here the team used a process that acts as the way nature responds to changes in the environment. According to the company, it responds like the way a pinecone responds to wet air by releasing seeds or the way flowers send compounds （混合物）to change colors.
The company has proven in lab tests that the technology works and now they are working on how to develop commercial（商业的）uses for it. The added safety features of the smart packaging will come out later, which will help control food waste in products like meat or cheese which have high greenhouse gas emissions （排放量）so as to help reduce the impact on climate change.
24. What can we know from Paragraph 1 ?
A. Few products show dependable sell — by dates.
B. Food is surely safe to eat within the use — by dates.
C. Storing food correctly is important for their safety.
D. People can know about food safety from their appearance.
25. What's the current use of the new smart packaging?
A. Making （bod stay fresh longer.
B. Reminding people of spoiled food.
C. Recording the amount of wasted food.
D. Adjusting food temperature by changing colors.
26. According to the last paragraph, what is Primitive Biodesign doing now?
A. Finding buyers for the smart packaging.
B. Raising money for environmental protection.
C. Doing experiments to test the new technology.
D. Making the smart packaging practical and greener.
答案
24 -26 CBD
苏19057182-3号