3.1 Communicative Function

What communicative function is asking

On the combined Academic and Quantitative Literacy (AQL) paper, Academic Literacy (AL) is the larger share. The official CEA/NBTP AQL booklet describes each AL sitting as about 75 multiple-choice questions within roughly 125 AQL items. Quantitative Literacy (QL) occupies the remaining AQL share; Mathematics (MAT) is a separate NBT domain. AL results are reported separately from QL. AQL items are MCQ, with no dictionary, on passages that mirror tertiary reading. This OpenExamPrep section is independent teaching of communicative function: how parts of sentences and discourse define, exemplify, support, or persuade—what a stretch is doing, not merely what topic it names.

What a stretch of text is doing

Writers do not stack sentences at random. One stretch defines, another exemplifies, another supports with a reason or finding, and another persuades. Those jobs can sit inside one sentence. An appositive (urban farms, plots cultivated inside city limits) defines. A for instance clause exemplifies. A cited audit supports. A should therefore close persuades.

Four jobs, four substitution tests

Ask of every highlighted phrase: can I replace it without breaking the writer's purpose?

• If you can swap it for “that is, X means…”, you are looking at definition.
• If you can swap it for “one case is…”, you have an example.
• If you can swap it for “the evidence is…” or “the reason is…”, you have support.
• If the stretch tells the reader what ought to follow—should, must, a warning, a recommendation—you have persuasion.

Definition is not support. A definition narrows a term; it does not prove the term's real-world effects. An example makes a claim concrete; it is usually weaker than a dataset used as support. Persuasion often uses definitions, examples, and support, but its own function is to steer judgement.

Discourse signals you can trust—if you check the clause

Signal words are shortcuts, not magic. Although typically opens a concession or contrast: it admits a point that limits what follows. Therefore typically marks a consequence or conclusion. For instance typically introduces an example. The trap is treating the signal as the answer without reading the clause it governs.

Although does not always cancel the main claim. In “Although the sample was small, the pattern was consistent,” the sentence's main job is still to assert the pattern; the although-clause concedes a limitation. Candidates who treat although as “the writer rejects the idea” over-read the signal.

Worked passage (original OpenExamPrep teaching)

Read the extract as you would a first-year reading pack. Track what each numbered sentence is doing.

(1) A lecture-capture policy is a faculty rule that records live teaching and stores the files for enrolled students. (2) Faculties introduce capture for several reasons: students who commute long distances can review a missed hour, and students who need to hear a definition twice can pause the file. (3) For instance, a 2023 registrar survey at a comprehensive university found that 41 percent of first-years used recordings mainly to replay worked examples, not to skip class. (4) Attendance monitors, however, argue that recordings invite absence, and some departments have therefore made capture available only after a student has already attended. (5) Although delayed release may protect live discussion, it withholds the very review tool that commuting students were promised. (6) Faculties should publish a single rule that balances attendance with access, rather than leaving each lecturer to improvise.

Sentence (1) defines lecture capture. Sentence (2) supports the policy with reasons (commuting; replay). Sentence (3) is an example of evidence—for instance plus a specific survey—backing the replay reason, not a new definition. Sentence (4) contrasts a competing view and then states a consequence (therefore). Sentence (5) concedes a possible benefit of delay and then limits that benefit. Sentence (6) persuades: should marks a recommendation, not a description of current practice.

If an item asked “The main communicative function of sentence (3) is to…”, the accurate description is that it illustrates a reason already given with a specific finding. It does not define lecture capture (sentence 1) and does not issue the recommendation (sentence 6).

How parts of a sentence define other parts

Inside sentence (1), the relative clause defines the subject. Inside sentence (5), the although-clause qualifies the criticism that follows. Inside sentence (4), the stretch after therefore states a policy consequence, not an example of commuting.

Exam traps on communicative function

• Topic mistaken for function. “This paragraph is about recordings” names a topic. The item wants the job: define, exemplify, support, concede, or recommend.
• Example mistaken for proof. The survey in sentence (3) exemplifies; it does not by itself prove that capture never harms attendance.
• Signal worship. Therefore in sentence (4) marks a departmental response, not the writer's own closing recommendation. The writer's persuasion sits in sentence (6).
• Concession as rejection. Although in sentence (5) admits a point; it does not mean the writer endorses delayed release.
• Persuasion hiding in a formal tone. Sentence (6) still persuades. Should is the tell.

On test day, mark the stretch: def / e.g. / support / concede / persuade. Then choose the option that names that job in the highlighted stretch, not in the passage as a whole.