Non-defining rel. clauses — Your Brain Has a Filing System
Grammar: Relative Clauses
Free ESL grammar exercise on non-defining rel. clauses themed around your brain has a filing system. Printable worksheet from EnglishPlans.com.
What's on this worksheet
A Level 4 (upper intermediate) ESL grammar exercise on education, practising relative clauses. The worksheet has a short reading excerpt, a grammar reference and graded practice items.
From the reading
Hermann Ebbinghaus, who mapped the forgetting curve in 1885, showed we forget half of new information within a day. The fix, which researchers have since confirmed in dozens of studies, is spaced repetition.
Grammar: Relative Clauses
- which — whole clause
- She passed the exam, which surprised everyone. — which comments on the whole idea before the comma
- Hedging with which
- Sleep improves recall, which suggests schools should rethink homework. — softens a claim by adding it as comment
Sample items
- Ebbinghaus, ______ mapped the forgetting curve in 1885, was a German psychologist.
- Spaced repetition, ______ involves reviewing material at increasing intervals, improves long-term retention.
- She scored top of the class, ______ meant she could skip the revision workshop.
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