Why do some people say "Don't make loud noises" is a bad sentence?

Please don’t make a loud noise? If this sentence is analyzed strictly from a grammatical point of view, it is indeed a bad sentence. However, there are many daily expressions that do not care about grammar. They have been used for a long time, and people are very concerned about it. We have long been accustomed to these daily expressions, and we can understand their meanings as soon as we see them, without bothering to pay attention to their grammar.

Noisy refers to loud and messy sounds, which itself includes the meaning of "loud", so the sentence "Don't make loud noises" is guilty of semantic duplication, which is grammatically speaking. of. In real life, slogans like "Please don't make loud noises" are generally used in public places. The practicality of the slogan is very important. It is necessary to consider that people of all cultural levels can really see its meaning, so Adding "loud" before "loud" can also play a role in emphasis. And in case there is a person with a low level of education who does not know the meaning of "loud", in this case, "loud" will play a very good role in guiding the reader.

If you really want to study this kind of grammatical errors carefully, then many of the sentences in daily life are wrong. For example, "Some bad habits need to be corrected in time." You will soon discover the syntax problem in this sentence. "Not good" and "bad" are obviously semantic repetitions. But if you say, "Some bad habits need to be corrected in time?" This sentence is acceptable as a colloquial sentence, but from a grammatical perspective, then it is also a sick sentence. The meaning of this sentence is to correct it. Are there still some bad habits that need to be corrected? So it is also a bad sentence.

So the rightness or wrongness of a sentence cannot often be judged based on grammar alone. Sometimes it must be comprehensively judged based on practical application. If some sentences with minor flaws are more applicable to real life, then it may not be a bad sentence. ?Right sentence?. Of course, it also depends on the occasion. A slogan like "Please don't make loud noises" may not be a problem if used in ordinary shopping malls or stations, but if used in international conference venues or large exhibition venues, it is likely to be picked on. Mistakes make the news.