Relative Clauses — English Bac SMB

Dans le programme du Bac SMB

English carries a coefficient of 2 in the Bac Sciences Maths B (SMB) stream, level with Philosophy. Mathematics dominates the stream (coefficient 9), followed by Physics-Chemistry and Engineering Sciences (coefficient 7 each), so English can look marginal — but it and Philosophy form the narrow margin where rankings and honours are actually decided. Reading, language and guided writing are all assessed.

À l'épreuve

Three parts: Reading Comprehension, Language, and Writing (a guided text of about 180 words). SMB candidates, trained to be rigorous and systematic, do well on the Language section if they treat each grammar point as a rule with a fixed structure; the risk is a dry essay that ignores vocabulary range and register, which the Writing section also scores.

Objectifs d'apprentissage

Apply this grammar point accurately in the Language section and in the guided writing of the Bac SMB English exam (coefficient 2)
Choose the right relative pronoun by function (who / whom for people, which for things, whose for possession, where for a place)
Distinguish a defining clause from a non-defining clause
Know when that can replace who / which and when it is forbidden
Omit the object relative pronoun correctly in a defining clause

Notions clés

Choosing the relative pronoun

who / whom for people (who as subject, whom as object, more formal), which for things, that for people or things but only in defining clauses, whose for possession, where for a place, when for a time.

Defining clauses

They specify which person / thing is meant and are essential to the meaning: no commas, that is possible, and the object relative pronoun can be omitted. E.g. “The book (that) I read was great.”

Non-defining clauses

They add extra, non-essential information: set off by commas, that is impossible, and the relative pronoun can never be omitted. E.g. “My brother, who lives in Paris, is a doctor.”

Erreurs fréquentes

Using that after a comma (non-defining clause): “My car, that is red, …” is wrong — use which.

Omitting the subject relative pronoun: “The man is here lives next door” is wrong — a subject pronoun is needed (who / that): “The man who lives next door is here.”

Confusing whose (possession) with who's (contraction of who is): two different words despite the identical pronunciation.

Exemple corrigé

Énoncé

Join the two sentences with the right relative pronoun: “This is the house.” / “I grew up in this house.”

Correction

Identify the function. “this house” is a place complement in the second sentence.

Choose the pronoun. where replaces a place complement introduced by a preposition: “This is the house where I grew up.”

Alternative with which. You can also keep the preposition explicit: “This is the house which I grew up in.”

Le cours, puis l'entraînement.

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3 exercices pour t'entraîner

Exercice 1

Easy

Complete with who or which: “The scientist ___ discovered penicillin was Alexander Fleming.”

Voir la correction

who — the scientist is a person, subject of the verb discovered.

Exercice 2

Medium

Join with whose: “I met a woman. Her son is a famous actor.”

Voir la correction

“I met a woman whose son is a famous actor.” — whose replaces the possessive adjective her before the noun son.

Exercice 3

Hard

Correct: “My sister, that works in London, is visiting us next week.”

Voir la correction

that is forbidden in a non-defining clause (set off by commas): “My sister, who works in London, is visiting us next week.”

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Questions fréquentes

When can I omit the relative pronoun?

Only in a defining clause where the pronoun works as an object: “The book (that) I read” (that is the object of read). You can never omit a subject relative pronoun or a pronoun in a non-defining clause.

Can which replace that everywhere?

which replaces that in defining clauses about a thing, but only which (never that) is possible in a non-defining clause, the one set off by commas.

How do I recognise a non-defining clause in writing?

It is always set off by commas and could be removed without changing the essential meaning — it only adds extra information, often about a proper noun or an already-identified noun.

A maths-stream student often dislikes English — how do they raise the mark?

Treat it as structure. Every writing task = introduction + argument + counter-argument + conclusion; every grammar point = one rule + one correct example + one typical mistake. Memorise that framework, apply it to the 31 chapters with two example sentences each, and 12/20 is reachable without eating into the heavy maths programme.

Is this grammar point actually tested on the Bac SMB English paper?

Yes — in the Language section as gap-fill, sentence-joining or error-correction, and indirectly in Writing, where the same structures decide whether a sentence is marked as accurate. One rule, two examples and one typical mistake per point is enough to cover both.