题目
12. A lot of people often forget that oral exams ______ to test our communicative ability.A. designB. are designedC. are designingD. are being designed
12. A lot of people often forget that oral exams ______ to test our communicative ability.
A. design
B. are designed
C. are designing
D. are being designed
题目解答
答案
B. are designed
解析
本题考查被动语态和一般现在时的用法。解题关键在于：
- 判断语态：主语oral exams是动作的承受者，需用被动语态（be + 过去分词）。
- 确定时态：句子描述的是普遍事实（口试的目的），需用一般现在时。
选项分析
- A. design：主动语态，错误，因为主语是动作的承受者。
- B. are designed：一般现在时被动语态，正确表达“口试被设计来测试能力”。
- C. are designing：现在进行时主动语态，错误。
- D. are being designed：现在进行时被动语态，错误，句子描述的是普遍事实而非当前动作。