The development of tinned food

文章大意

雅思听力Part4讲罐头食品的发展与影响：从早期用奶酪混石灰密封容器防腐，到细菌是食物变质主因的认识；钢罐镀锡防锈、勺子成为吃罐头的必备工具、纸厂提供标签包装；工厂量产让罐头普及，肉类最早商业化罐装，探险家靠罐头维生，广告宣传其便利与长保质期。

题目与答案

1. The Development of Tinned Food

   The development of tinned food led to increased 31_____ among manufacturers to produce better and safer products.

   答案：competition

   原文定位：The evolution and impact of tinned food. The development of tinned food led to increased competition among manufacturers to produce better and safer products

2. Methods of Food Preservation

   ·Before tinned food, people used 32_____ mixed with lime to seal food containers to prevent spoilage.

   答案：cheese

   原文定位：Before tinned food, people used cheese mixed with lime to seal food containers to prevent spoilage

3. ·With long voyages becoming common, there was a need to store food for extended periods without bacterial contamination. Now we know that the main culprit of spoilage is 33_____ .

   答案：bacteria

   原文定位：With long voyages becoming common, there was a need to store food for extended periods without bacterial contamination. Now we know that the main culprit of spoilage is bacteria

4. Innovations and Tools

   ·34_____ became essential tools for consuming tinned food, especially in settings without proper dining facilities.

   答案：spoons

   原文定位：Spoons became essential tools for consuming tinned food, especially in settings without proper dining facilities

5. ·35_____ cans are coated with tin to prevent rusting and ensure food safety.

   答案：steel

   原文定位：Steel cans are coated with tin to prevent rusting and ensure food safety

6. ·36_____ manufacturers played a role in the tinned food industry by providing labels and packaging materials.

   答案：paper

   原文定位：Paper manufacturers played a role in the tinned food industry by providing labels and packaging materials

7. Industrial and Commercial Development

   ·The mass production of tinned food in a 37_____ revolutionized the food industry, making preserved food widely accessible.

   答案：factory

   原文定位：The mass production of tinned food in a factory revolutionized the food industry, making preserved food widely accessible

8. ·An 38_____ relied heavily on tinned food for sustenance during long expeditions, ensuring they had a reliable food source.

   答案：explorer

   原文定位：An explorer relied heavily on tinned food for sustenance during long expeditions, ensuring they had a reliable food source

9. ·39_____ was one of the first types of food to be commercially tinned, providing a protein-rich option for consumers.

   答案：meat

   原文定位：Meat was one of the 1st types of food to be commercially tinned, providing a protein-rich option for consumers

10. ·40_____ played a crucial role in popularizing tinned food, highlighting its convenience and long shelf life.

    答案：advertisements

    原文定位：Advertisements played a crucial role in popularizing tinned food, highlighting its convenience and long shelf life