题目
7. (4.0 分) additiveA that cannot be changed back to what it was beforeB something that is dangerous and likely to cause damageC to cause a violent situation to endD the process of absorbing nutrients or medications into the body by eating or drinking themE a substance that is added to food in order to improve its taste or appearance or to keep it fresh and stop it from
7. (4.0 分) additive
A that cannot be changed back to what it was before
B something that is dangerous and likely to cause damage
C to cause a violent situation to end
D the process of absorbing nutrients or medications into the body by eating or drinking them
E a substance that is added to food in order to improve its taste or appearance or to keep it fresh and stop it from
题目解答
答案
根据题目要求，我们需要选择一个与 "additive" 最匹配的定义。"Additive" 通常指的是在食品中添加的物质，以改善其味道、外观或保质期。让我们逐一分析每个选项：
A. that cannot be changed back to what it was before
- 这个选项的意思是“不能恢复到原来的状态”，与 "additive" 无关。
B. something that is dangerous and likely to cause damage
- 这个选项的意思是“危险且可能造成损害的东西”，虽然某些添加剂可能有潜在的危险，但这个定义太宽泛，不能准确描述 "additive"。
C. to cause a violent situation to end
- 这个选项的意思是“使暴力情况结束”，与 "additive" 完全无关。
D. the process of absorbing nutrients or medications into the body by eating or drinking them
- 这个选项的意思是“通过饮食将营养物质或药物吸收进身体的过程”，与 "additive" 无关。
E. a substance that is added to food in order to improve its taste or appearance or to keep it fresh and stop it from
- 这个选项的意思是“添加到食品中以改善其味道、外观或保持其新鲜度的物质”，这正是 "additive" 的定义。
因此，正确答案是 E。
答案：E
解析
本题考查对词汇“additive”含义的理解以及对各选项定义的匹配能力。解题思路是明确“additive”的常见释义，然后依次分析每个选项的含义，找出与“additive”定义最相符的选项。
- 选项A：“that cannot be changed back to what it was before”，意思是不能恢复到原来的状态，这与“additive”（添加剂）的概念没有关联，所以该选项不符合。
- 选项B：“something that is dangerous and likely to cause damage”，指危险且可能造成损害的东西。虽然有些添加剂可能存在潜在危险，但这个定义过于宽泛，不能准确地定义“additive”，所以该选项不合适。
- 选项C：“to cause a violent situation to end”，意为使暴力情况结束，这与“additive”毫无关系，所以该选项不正确。
- 选项D：“the process of absorbing nutrients or medications into the body by eating or drinking them”，是通过饮食将营养物质或药物吸收进身体的过程，和“additive”的定义不相关，所以该选项也不符合。
- 选项E：“a substance that is added to food in order to improve its taste or appearance or to keep it fresh and stop it from”，即添加到食品中以改善其味道、外观或保持其新鲜度的物质，这正是“additive”的常见定义，所以该选项正确。