Why did the chalk teacher get a low score in the real test of Putonghua?

Most students have completely different mentality when practicing and taking exams. When practicing at ordinary times, the mentality is relaxed and the error rate is low. However, once they take the exam, many students instinctively label themselves as "failed in the exam".

So when we arrive at the examination room, we will be more nervous. When we are nervous, our breath, volume and oral state will be bad, which will directly lead to poor sound. Because we are a computer test, if the sound is not clear enough, the machine will not recognize it, which will directly lead to deduction.

Another reason is that because of nervousness, many words that can be understood at ordinary times often make mistakes in exams, and even when reading short articles, it is very common that the topic cannot be said. This is the direct reason why most candidates have not got good grades in the exam.