🔥 Warm-Up (5 minutes)
- Have you ever visited a factory or production line? What did you see?
- Why is quality control important in manufacturing?
📖 Key Vocabulary
| English | Type | Example Sentence |
|---|---|---|
| assembly line | n. | Workers on the assembly line inspect each product. |
| defect | n. | The inspector found a defect in the packaging. |
| inspection | n. | Quality inspection takes place before shipment. |
| raw material | n. | The factory imports raw materials from several countries. |
| output | n. | Monthly output increased by 15% this year. |
| malfunction | n./v. | The machine malfunctioned during the night shift. |
| efficiency | n. | New equipment improved production efficiency. |
| specification | n. | The parts must meet strict specifications. |
| durable | adj. | The new packaging is more durable than the old one. |
| recall | n./v. | The company issued a recall after the defect was discovered. |
🧠 Grammar / Strategy Focus
Participial adjectives ending in -ing describe something that causes a feeling or effect (“The malfunctioning machine caused a delay” — the machine causes the problem). Participial adjectives ending in -ed describe how someone feels or is affected (“The confused technician called for help” — the technician feels confused). A common TOEIC error is confusing the two forms: “The results were satisfying” (the results caused satisfaction) versus “The manager was satisfied” (the manager feels satisfaction).
✏️ Part 5 Practice
Incomplete Sentences
📝 Part 6 Practice
Text Completion (Subject: Voluntary Product Recall — Model X200)
To: All Production Staff
From: Quality Control Department
Re: Voluntary Product Recall — Model X200
We have identified a (1) defect in a batch of Model X200 units produced between March 1 and March 15. The defect may cause the product to (2) after extended use. All (3) units must be pulled from the production line immediately and set aside for inspection. Staff who find affected units should report them to their supervisor without (4). We appreciate your cooperation in resolving this issue quickly.
Quality Control Department
📰 Part 7 Practice
Reading Comprehension
A garment factory in Binh Duong Province has reported a 25% increase in production efficiency after upgrading its assembly line equipment last quarter. The new machines, which include automated stitching and quality-inspection systems, have reduced the average time needed to complete each unit from 12 minutes to 9 minutes.
According to the factory manager, the upgrade also led to a significant decrease in defects, from 3.2% to 1.1% of total output. The factory plans to invest in additional automated equipment next year and expects efficiency to improve further. Workers have received additional training to operate the new machines safely and effectively.
🎧 Listening Practice
Talk (Part 4 style)
Teacher: read the script aloud twice (or record it) at natural speed, then ask students the questions below.
Attention all staff. Please be advised that line 2 will be shut down for scheduled maintenance this afternoon from 1 to 3 p.m. During this time, workers assigned to line 2 should report to the training room for a session on the new quality-inspection system. Please bring your employee badge, as attendance will be recorded. Regular operations will resume at 3 p.m. Thank you for your cooperation.