Understanding Sentence Errors: Identifying Grammar Mistakes

This question asks us to find the part of the given sentence that contains a grammatical error. We need to examine each segment of the sentence carefully to spot any incorrect usage of words, articles, prepositions, tenses, or other grammatical rules.

The sentence is:

The sea has become / an cheap dumping ground / for all kinds / of waste products.

Let's break it down part by part:

• The sea has become: This part is grammatically correct. "The sea" is the subject, and "has become" is the present perfect tense of the verb "become," which agrees with the singular subject.
• an cheap dumping ground: Let's look closely at this part. It uses the indefinite article "an" before the adjective "cheap". The choice between "a" and "an" depends on the sound of the word that immediately follows the article. We use "a" before a word that starts with a consonant sound, and "an" before a word that starts with a vowel sound. The word "cheap" starts with the consonant sound /tʃ/. Therefore, the correct indefinite article to use before "cheap" is "a", not "an". This part contains the error.
• for all kinds: This part is grammatically correct. "all kinds" is a common phrase used to indicate a variety of types.
• of waste products: This part is grammatically correct. "waste products" is a plural noun phrase, used correctly here.

The error is in the second part, where "an cheap" is used instead of "a cheap".

The correct sentence should be:

The sea has become a cheap dumping ground for all kinds of waste products.

Analyzing the Incorrect Part: 'an cheap dumping ground'

The specific error lies in the use of the indefinite article "an". Indefinite articles are used with singular countable nouns when the noun is non-specific. The rule for choosing between "a" and "an" is based on pronunciation:

• Use a before words starting with a consonant sound (e.g., a car, a house, a university - because 'university' starts with a /j/ sound).
• Use an before words starting with a vowel sound (e.g., an apple, an hour - because 'hour' starts with an /aʊər/ vowel sound, an umbrella).

The word "cheap" begins with the consonant sound /tʃ/. Therefore, the correct article is "a", making the phrase "a cheap dumping ground".

Based on this analysis, the part of the sentence that contains the error is "an cheap dumping ground".

Identifying the Error Option

We need to select the option that corresponds to the part "an cheap dumping ground". Looking at the options:

• an cheap dumping ground
• The sea has become
• of waste products
• for all kinds

The first option, "an cheap dumping ground", is the part that contains the grammatical error.

Revision Table: Common Article Errors

Additional Information: Indefinite Articles 'A' and 'An'

Indefinite articles 'a' and 'an' are used:

• With singular, countable nouns when referring to them for the first time.
• When referring to a general or non-specific noun.
• To indicate one of something (similar to 'one').
• To describe a person's profession (e.g., He is a doctor).
• In certain fixed expressions (e.g., a lot of, a few).

The key is always the sound that follows the article, not the letter. For example, 'university' starts with a 'u', but the sound is /j/, a consonant sound, so we say 'a university'. 'Hour' starts with an 'h', but the sound is /aʊər/, a vowel sound, so we say 'an hour'.

Mastering the use of 'a' and 'an' is fundamental for correct English grammar.