In Summary Completion questions, you are given a summary of a section of the text or the entire text. This summary will contain a number of gaps. Your task is to complete the gaps with words taken directly from the passage. You will be given a strict word limit (e.g., ONE WORD ONLY, NO MORE THAN TWO WORDS).

The Core Challenge:
This task tests your ability to understand the overall meaning of a text and how its key ideas are connected. You must:

1. Grasp the main ideas and structure of the summary.
2. Locate the specific part of the passage that the summary relates to.
3. Find the exact word(s) that fit both the meaning and the grammar of the summary sentence.

Crucial Distinction from Other Tasks:

• vs. Sentence Completion: While both involve filling gaps, a summary covers a broader section of the text, requiring you to synthesize information from multiple sentences or paragraphs. Sentence Completion questions are often more isolated.
• vs. Yes/No/Not Given: This task is about finding factual information to complete a summary, not identifying the writer’s opinions.

7-Step Strategy for Summary Completion

Step 1: Read the Instructions Meticulously
This is your most critical habit. Check the word limit immediately. Writing too many words will make your answer incorrect, regardless of its accuracy.

Step 2: Analyze the Summary and the Gaps

• Read the entire summary first to understand its general topic and scope. Does it summarize one paragraph or the whole passage?
• For each gap, predict the type of word needed. Is it a noun, verb, adjective, etc.?
• Pay close attention to the grammatical context around the gap. Articles (a, an, the), prepositions (of, in, for), and verb tenses are powerful clues.

Step 3: Identify Keywords for Scanning
Underline key content words in the summary, especially in the sentences containing gaps. These keywords (names, dates, unique nouns, verbs) will be your map to finding the right section of the passage.

Step 4: Locate the Relevant Section in the Text
Scan the passage for the keywords you identified. The summary will follow the order of the text, so the answer for the first gap will be found before the answer for the second gap, and so on.

Step 5: Read the Text Intensively
Once you locate the area, read the sentences before and after your keyword match carefully. Your goal is to find a word or phrase that conveys the same meaning as required by the summary.

Step 6: Select the Correct Word(s)
When you find a potential answer, check it against your prediction.

• Meaning: Does it make perfect sense in the context of the summary?
• Grammar: Does it fit grammatically into the incomplete sentence?
• Form: Is it the exact word from the text? Do not change word forms (e.g., from ‘growth’ to ‘growing’).

Step 7: Finalize Your Answer and Move On
Write your answer clearly. If you are stuck, use the grammatical clues to make an intelligent guess, then proceed to the next question.

IELTS Reading Practice: Summary Completion

Passage: The Science of Sleep

Sleep is not merely a passive state of rest but an active and complex biological process essential for health and cognitive function. It is broadly divided into two main types: Rapid Eye Movement (REM) sleep and Non-REM sleep.

Non-REM sleep itself consists of three distinct stages, progressing from light to deep sleep. Stage 1 is the lightest phase, the transition from wakefulness to sleep. Stage 2 is characterized by a drop in body temperature and relaxed muscles. Stage 3, often called slow-wave sleep, is the deepest and most restorative phase, crucial for physical repair and memory consolidation.

REM sleep, on the other hand, is the stage most associated with vivid dreaming. During REM, the brain is highly active, almost to the level of being awake, but the body’s voluntary muscles are paralyzed—a state known as atonia—which prevents us from acting out our dreams. This stage is believed to be critical for processing emotions and reinforcing learning.

A full sleep cycle, progressing through all stages of Non-REM and REM sleep, typically lasts about 90 to 110 minutes. A healthy adult will experience multiple cycles each night, with the duration of REM sleep increasing in each subsequent cycle. Disruption to this architecture, such as through sleep disorders like apnea or insomnia, can have severe consequences for both physical and mental well-being.

Questions:
Complete the summary below.
Choose NO MORE THAN TWO WORDS from the passage for each answer.

The Stages of Sleep

Human sleep is composed of two primary categories: REM and Non-REM sleep. The latter is made up of three separate 1 …………………. . The initial stage involves the shift from being awake to being asleep. The following stage sees a decrease in 2 …………………. and the relaxation of the muscles. The deepest and most restorative phase is Stage 3, also known as 3 …………………. sleep.

In contrast, REM sleep is when most 4 …………………. dreaming occurs. While the brain is very active, the body’s voluntary muscles become immobile due to a condition called 5 …………………. . A complete sleep cycle, including all stages, generally takes approximately 90 to 110 minutes to finish.

Step-by-Step Demonstration Table

Let’s demonstrate the process for a question that uses synonyms.

Question 2: The following stage sees a decrease in 2 …………………. and the relaxation of the muscles.

• Step 2: The gap follows “a decrease in,” so it needs a noun. The sentence also mentions “relaxation of the muscles,” which is another clue.
• Step 3: Keywords: following stage, decrease, muscles. This points to the description of Stage 2.
• Step 4: Located in Paragraph 2: “Stage 2 is characterized by a drop in body temperature and relaxed muscles.”
• Step 5/6: The summary says “a decrease in,” which is a synonym for the text’s “a drop in.” The object of this phrase in the text is body temperature. This fits both the meaning and the grammar.

Analysis: The words around the gap are often paraphrased. Your job is to find the key noun from the passage that completes the meaning.

Now, try to complete the rest. The answers are below.

Answers:

1. stages (Paragraph 2: “three distinct stages”)
2. body temperature (Paragraph 2: “a drop in body temperature”)
3. slow-wave (Paragraph 2: “Stage 3, often called slow-wave sleep”)
4. vivid (Paragraph 3: “the stage most associated with vivid dreaming”)
5. atonia (Paragraph 3: “a state known as atonia”)