Writing prompt: The Population Problem

Student essay:
Too much population is an important problem. Here are some points.
The first problem is materials less.Too much population will make the food.water as well as energy less and less.
Traffic problem is the second one. Too many people will have too many cars.There will be plenty of traffic accidents. It's dangerous.
The houses problem is also secious.Many people won't have place to live in. Too much population means that many people have to go to jobs,but some people will lose their jobs as well.
The environment is a problem ,too. Bad environment is harm to our health.
In a word, too much population will cause more and more problems. So we should try our best to chenge them.

Corrected essay:
Too much population is an important problem. Here are some points.
The first problem is fewer materials. Too much population will make the food, water as well as energy less and less.
The traffic problem is the second one. Too many people will have too many cars. There will be plenty of traffic accidents. It's dangerous.
The housing problem is also serious. Many people won't have a place to live in. Too much population means that many people have to go to jobs, but some people will lose their jobs as well.
The environment is a problem, too. A bad environment is harmful to our health.
In a word, too much population will cause more and more problems. So we should try our best to change them.

Error analysis:
error_sentence: The first problem is materials less.
correct_sentence: The first problem is fewer materials.
error: materials less
correction: fewer materials
error_type: Word Order Error
error_severity: 5
error_description: ① Word Order Error: According to English adjective modification rules, adjectives should precede the nouns they modify. Therefore, the incorrect word order 〈materials less〉 is adjusted to the correct order 『fewer materials』 to conform to grammatical standards; ② Adjective Error: 〈less〉 is only used to modify uncountable nouns, while 〈materials〉 is a plural countable noun. According to English quantifier usage rules, 〈less〉 is changed to the countable noun determiner 『fewer』, forming the correct collocation 『fewer materials』.
error_sentence: Too much population will make the food.water as well as energy less and less.

correct_sentence: Too much population will make the food, water as well as energy less and less.

error: food.water
correction: food, water
error_type: Punctuation Error
error_severity: 3
error_description: ① Punctuation Error: A comma is needed to separate the coordinate nouns 〈food〉 and 〈water〉. The original sentence incorrectly uses a period 〈food.water〉; it is now corrected to the standard expression 『food, water』 to comply with English punctuation rules for listing items in a series; ② Space Error: A space must follow a comma in English. The original phrase 〈food.water〉 not only has a punctuation error but also lacks a space. It is now standardized to 『food, water』 to ensure correct punctuation formatting.
error_sentence: Traffic problem is the second one.
correct_sentence: The traffic problem is the second one.
error: Traffic
correction: The traffic
error_type: Determiner Error
error_severity: 3
error_description: ① Determiner Error: When referring to a specific problem, the noun phrase requires a definite article. The general expression 〈traffic problem〉 is corrected to the specific form 『The traffic problem』 by adding 『The』 to clearly specify the object; ② Case Error: According to English expression norms, the noun 〈Traffic〉, when not in a capitalized position at the beginning of a sentence, should be changed to lowercase 『traffic』, to conform to English conjunction writing conventions.
error_sentence: The houses problem is also secious.
correct_sentence: The housing problem is also serious.
error: houses
correction: housing
error_type: Noun Error
error_severity: 2
error_description: Noun Error: According to English expression norms, 〈houses problem〉 does not conform to fixed English expressions; the correct term should be 『housing problem』. Therefore, the incorrect noun is replaced to ensure terminological accuracy.
error_sentence: The houses problem is also secious.
correct_sentence: The housing problem is also serious.
error: secious
correction: serious
error_type: Spelling Error
error_severity: 2
error_description: Spelling Error: According to English spelling conventions, 〈secious〉 is a misspelling; the correct spelling is 『serious』, expressing the meaning “severe”. When correcting, attention should be paid to the letter order (e-r-i-o-u-s) and the pronunciation correspondence.
error_sentence: Many people won't have place to live in.
correct_sentence: Many people won't have a place to live in.
correction: a
error_type: Determiner Error
error_severity: 2
error_description: Determiner Error: The singular countable noun 〈place〉 requires an indefinite article when used in a general sense. The original phrase 〈have place〉 lacks an article; the indefinite article 『a』 is needed for modification to indicate a general place to live. It is now supplemented as 『have a place』 to complete the grammar.
error_sentence: Bad environment is harm to our health.

correct_sentence: A bad environment is harmful to our health.

error: Bad
correction: A bad
error_type: Determiner Error
error_severity: 3
error_description: ① Determiner Error: When the singular countable noun 〈environment〉 is used as a subject, an article needs to be added. 〈Bad environment〉 is changed to 『A bad environment』 by adding 『A』 to specify the singular noun, satisfying grammatical requirements; ② Case Error: According to English expression norms, the conjunction 〈But〉, when not in a capitalized position at the beginning of a sentence, should be changed to lowercase 『but』, to conform to English conjunction writing conventions.
error_sentence: Bad environment is harm to our health.

correct_sentence: A bad environment is harmful to our health.

error: harm
correction: harmful
error_type: PoS Confusion Error
error_severity: 3
error_description: PoS Confusion Error: The original sentence uses the noun/verb 〈harm〉, but the predicative requires the adjective 『harmful』 to describe the effect of the 〈environment〉 on health. According to the fixed collocation “be harmful to” structure, it is replaced with 『harmful』 to ensure grammatical correctness.
error_sentence: So we should try our best to chenge them.
correct_sentence: So we should try our best to change them.
error: chenge
correction: change
error_type: Spelling Error
error_severity: 2
error_description: Spelling Error: According to English writing conventions, 〈chenge〉 is a misspelling; the correct form is 『change』, meaning “to change”. When correcting, attention should be paid to the spelling rule for the letter combination 〈ch-an-ge〉.