Summarising | CBSE Class 11 English Notes

Summarising, selecting main ideas, preparing notes, paraphrasing, joining complete sentences, shortening expressions, preserving qualifications, reducing the soybean passage, and working through the Green Sahara exercise.

What is summarising, and how does it differ from note-making?

Definition: Summarising means selecting all the important information in a passage and expressing it briefly in fresh wording.

Paraphrasing means expressing an idea in different words while keeping its meaning. A summary combines selection with paraphrasing. It requires an understanding of the whole passage, followed by a plan for reporting its main points.

Note-making means recording important ideas in a shortened form. Its purpose is usually personal reference. When those main points need to be reported, they become a summary. A summary is less severely shortened than notes because its ideas appear in complete, connected sentences.

What changes between notes and a finished summary?

The difference concerns presentation as well as length. A list may contain relevant information but still need expansion into sentences. Conversely, writing full sentences does not make a good summary if those sentences retain unnecessary examples and repeated explanations.

Main ideas are the central points needed to convey the passage's meaning. Supporting material develops or illustrates those points. In the soybean exercise, the range of uses is important; the long list of individual food products illustrates that range.

A useful starting question is therefore: what must another reader understand after reading this shortened account? Use that question to separate the main information from its supporting details. The result should communicate the passage's content without making the reader reconstruct a collection of isolated notes.

How do you select important ideas before writing?

Begin by reading the passage as a whole. Then examine its paragraphs to form a writing plan, an arrangement of the important points you intend to include. Underlining is useful when it identifies ideas, rather than simply marking interesting words.

What sequence should you follow?

1. Underline important ideas. Identify the information that carries the passage forward. In the soybean task, this includes the plant's identity, conditions of growth, uses, nutritional information and soymilk.
2. Write down the selected ideas. Abridge, or shorten, the verbs while preparing notes. At this stage, compact working points help you see what information you have selected.
3. Leave out unnecessary development. Avoid examples, extended explanations and repetition when they merely elaborate a point that your notes already preserve.
4. Expand and connect the points. Turn the notes into full sentences and link the ideas appropriately. Check that the main information survives the change of form.

The selection stage comes before the polished wording. If an important point is absent from the notes, an elegantly written sentence will not restore it. Equally, copying nearly every sentence into the notes leaves little work of selection completed.

Repetition is the return of information already conveyed. Remove repeated wording while keeping any genuinely new information. For instance, the ability to make soymilk at home is a distinct point; repeating that it is a soybean product does less work once its identity is clear.

Review the plan paragraph by paragraph. Ask whether it includes the passage's important beginning, development and ending. This is particularly helpful in Green Sahara, where the account moves from present dryness to an earlier green environment, then explains drying and ends with uncertainty about the future.

How do you turn shortened notes into connected sentences?

Nominalising means changing verbs into nouns. Although shortened notes may use such forms, a summary expands points into full sentences. A complete sentence expresses a finished statement instead of leaving the reader with a heading or a fragment.

Connectors are words or expressions that link ideas. Choose them to preserve the relationship already present in the passage. A connection may add information, introduce a contrast, or show a sequence. The connection itself must remain faithful to the material being summarised.

How does this work in the soybean exercise?

Worked example 1. The selected information is that soybeans are seeds of a plant in the legume family and can grow in varied soils and climates. Turn these related points into a sentence.

Answer: Soybeans are seeds of a leguminous plant that can grow in varied soils and climates.

Leguminous means belonging to the legume family, the plant group to which soybean belongs. The sentence combines identity and growing conditions while retaining “can”. It does not claim that successful growth occurs in every possible environment.

For Green Sahara, the contrast is between a dry present landscape and evidence of a greener past. Make that contrast clear before describing how the change occurred. Otherwise, a reader may receive several correct facts without understanding their relationship.

After joining ideas, inspect the sentence again. Has the subject remained clear? Does the connection express the same relationship as the passage? Has shortening accidentally joined two points as cause and effect when the passage merely places them together?

Precision means expressing the intended meaning accurately and without unnecessary wording. A shorter sentence is useful when it preserves the idea; a short sentence that changes the idea needs revision.

How can one precise word replace a longer expression?

Word substitution means replacing a longer expression with a word that conveys its meaning accurately. This helps reduce length without discarding the idea itself. The test is meaning, not simply the number of words removed.

What do the two vocabulary examples teach?

Precocious describes someone whose abilities develop unusually early. In the example about children, it replaces the description of intelligence far beyond their age. Mediocre means of ordinary rather than outstanding quality; here it describes the later adult outcome.

A qualification limits a statement's certainty, frequency or scope. Here, the important qualification is often. It indicates frequency without making the outcome universal. Replacing the longer description of the children with “precocious” is an economical change. Removing “often” would alter the claim.

Versatile means capable in several different fields. In the example about a woman distinguished in arts, languages and science, the word compresses the idea of excellence across a range of fields. It preserves the breadth that a word such as “skilled” would leave less explicit.

Apply this technique after identifying the main ideas. It cannot repair a summary built around unimportant details. Nor should you choose an unfamiliar word merely because it is short. Use a compact expression when you can explain what it means in the sentence.

The two examples show that reduction can preserve meaning at different levels. One word can replace a descriptive group of words, while another can bring several fields of achievement under a single description.

How can grammar make a summary shorter?

Grammatical changes can reduce repeated wording while keeping relationships clear. The soybean exercise demonstrates apposition, which places an identifying noun phrase beside a noun, and a present participle, an “-ing” verb form. These devices reorganise information rather than simply omit it.

What is apposition?

Apposition places a noun or noun phrase beside another noun to identify or explain it. In the soybean example, “a legume” identifies soybean and is placed between commas. This avoids giving that identification a separate full sentence.

What does a present participle do here?

A present participle is an “-ing” verb form. The example uses “growing” to attach information about soil and climate to soybean. The grammatical change carries the growing conditions within the larger sentence instead of introducing another statement with a repeated subject.

How does moving a phrase help?

The expression “rich in” introduces nutritional information before the main verb. The main verb is the verb carrying the sentence's central statement. Postponing it allows related descriptions to appear together without repeating the same opening words.

1. Identify information that refers to the same subject.
2. Consider whether an identifying phrase can replace a separate statement.
3. Use a participle where it expresses the intended relationship clearly.
4. Read the sentence for meaning and check that it still has a main statement.

Do not treat these devices as decorations that every summary must contain. Their value is the reduction they achieve while keeping the sense clear. The soybean model illustrates their use; the decision to use them elsewhere depends on the sentence you need to write.

Check the wording after the change. A compressed phrase must still describe the intended subject, and the finished sentence must remain understandable without the original notes beside it.

How do you plan the soybean worked example?

The soybean task moves from reading and underlining to selected points and progressively shorter writing. Its content falls into related groups. A content map, meaning a brief grouping of the selected information, helps you see which ideas belong together.

Which groups of information need attention?

Lactose means milk sugar. Low Density Lipoprotein (LDL) is the term abbreviated in the passage's discussion of bad cholesterol. The Food and Drug Administration (FDA) is the named body to which the statement about likely reduction in heart disease risk is attributed.

Coronary heart disease refers to disease affecting the blood vessels supplying the heart. These terms belong to the content of the practice passage. The writing task is to represent that content faithfully, with particular care over the strength of its claims.

How do you reduce the food and preparation details?

The food examples include tofu and tempeh, foods made from soybeans, and soy sauce. In a shortened account, “processed foods” preserves their role as examples of varied uses. It does not require the summary to reproduce the full product list.

The preparation sequence is soaking, grinding and straining. If space permits, preserve that sequence in compact wording. If you remove the procedure, retain the broader point that soymilk can also be prepared at home. This is how selection works alongside sentence-level shortening.

Check the two kinds of content separately: the main categories selected and the qualifications attached to them. Retaining every category does not compensate for changing a qualified statement into an unqualified one.

How does the soybean example become progressively shorter?

A summary is usually one-third the length of the original passage. “Usually” makes this a general guide. In a task that supplies a particular word limit, plan and revise towards the requested length while retaining the central information. For a summary of up to 50 words, 50 is the ceiling; the usual one-third guide does not replace that instruction.

What are the stages in the reduction exercise?

The first selection is about half the original length. It therefore provides material for another editing pass. The later versions demonstrate that reduction happens through both removal of detail and reorganisation of sentences.

Worked example 2. Select and compress the soybean passage's information about soymilk, retaining its flavour, lactose and preparation details.

Answer: Flavoured soymilk contains no lactose and can be prepared at home by soaking, grinding and straining soybeans.

This is a model compression of a selected part, not a complete summary of the soybean passage. Its value lies in joining product information and a preparation sequence without copying the longer explanation.

After shortening, return to the original wording. Keep “a variety” of soils and climates instead of expanding the claim to every environment. Keep “likely” in the statement about heart disease risk. These checks protect meaning even when a sentence becomes more fluent.

What can a complete soybean model look like?

Worked example 3. Give a compact account of the soybean passage, preserving its qualifications and grouping its examples.

Answer: Soybeans, seeds of a leguminous plant, can grow in varied soils and climates. Used as beans, sprouts and processed foods, they also supply candles and bio-diesel. They provide protein, vitamins, minerals and fibre, with little saturated fat and no cholesterol.

They can lower LDL levels; foods containing soy protein are likely to reduce coronary heart disease risk. Flavoured soymilk, described as suitable for people allergic to ordinary milk, contains no lactose and can be made at home by soaking, grinding and straining soybeans.

This model retains the main groups and the preparation sequence. It leaves out individual product and mineral names. Check the retained claims against the original: growth remains possible in varied conditions, and the risk-reduction claim remains qualified by ‘likely’.

Almost all the main points are covered in the final illustrated reduction. That wording recognises the effect of compression. It should not be strengthened into a claim that every detail, example and explanation remains.

How do you select the main ideas in Green Sahara?

Green Sahara asks you to summarise an account of environmental change. Its organising contrast is between the dry Sahara and evidence of a greener past. Follow that contrast with the explanation of change, rather than treating the passage as a collection of unrelated geographical facts.

What information establishes the contrast?

The opening describes extreme dryness. Underground fresh water and prehistoric rock art then provide a different perspective. Aquifers are underground layers that hold water; fossil water here means water stored from prehistoric times. Some of this water is possibly a million years old.

Rock art depicts hippopotamuses, animals needing water throughout the year. The Sahara was green 6,000 years ago. The earlier surroundings were perfectly liveable, although there is little evidence that they were a tropical paradise.

What explains the change?

A monsoon is a seasonal wind pattern associated here with rainfall. The paleo-monsoon is the monsoon of the prehistoric period discussed in the passage. Its northward and southward movement is connected with changes in the earth's motion. Perihelion means the earth's closest approach to the sun.

The explanation includes changes in the tilt and wobble of the earth's axis, the imaginary line about which it rotates, and the timing of perihelion. Increased northern summer sunlight can shift the African monsoon northward. A short summary can group these details as changes in the earth's motion and summer sunlight.

Keep around and by: they express different time relationships. The first gives an approximate date; the second identifies a condition reached by a stated time.

The final causal sequence, a linked account of causes and effects, is drying land, declining vegetation, reduced water retention, fewer clouds and rapid loss of rainwater. Water retention means the soil's ability to hold water. The ending adds uncertainty: no one knows how human-driven climate change may alter the Sahara in future.

What would a worked answer to the Green Sahara task look like?

First organise the main information into a plan: present dryness and stored water; evidence of the greener past; the monsoon explanation; southward movement and continuing drying; uncertainty about future change. Then convert that plan into connected sentences.

How can the selected ideas become a concise account?

Worked example 4. Summarise Green Sahara by keeping its contrast, explanation of change, main time references and uncertain future.

Answer: The dry Sahara holds prehistoric groundwater, some possibly a million years old. Rock art depicting hippos indicates year-round water in its greener past. Changes in the earth's motion affected monsoons; a northward shift 10,000 years ago brought rain to North Africa. The Sahara was green 6,000 years ago.

Around 5,000 years ago, the monsoon moved south again, and inhabitants perhaps migrated towards the Nile Valley. Declining vegetation reduced the soil's water retention; fewer clouds formed and rainwater was rapidly lost. By 4,000 years ago, the Sahara had reached its present condition. How human-driven climate change may alter it remains unknown.

Why does this answer preserve the passage's meaning?

It retains possibly for the age of some groundwater and perhaps for migration towards the Nile Valley. Neither uncertainty becomes a definite claim. It also preserves the distinction between the monsoon's movement and the subsequent process of drying.

The model omits the extended illustration of present dryness and the closing description of bottled water. It retains the larger point about ancient groundwater and the unresolved question of future change. This is a selection decision based on the passage's main explanation.

A causal sequence is a linked account of causes and their effects. Here, falling vegetation and reduced water retention help explain continuing dryness. A useful summary keeps this relationship, rather than reducing the account to dates alone.

This is one possible worked answer. Its structure demonstrates the skill: select, group, connect and check. Different wording can remain accurate if it preserves the same main information and qualifications.

How should you check answers for accuracy and length?

Review a draft in separate passes. Check the content before concentrating on individual words. This makes it easier to distinguish a missing idea from a sentence that merely needs shortening.

What should a final check include?

1. Coverage: Compare the draft with the selected main points. Check that important information from the ending has not disappeared simply because it occurs last.
2. Meaning: Compare the strength of each statement with its original. Retain qualifications such as often, usually, likely, possibly and perhaps wherever the corresponding claim remains.
3. Connections: Check the order of events and the links between causes and effects. Related facts should appear together in a way that preserves the passage's explanation.
4. Expression: Replace avoidable repetition, use precise words and turn remaining fragments into full sentences. Read the result as an independent piece of writing.
5. Length: Check the requested limit and reduce supporting detail or repeated expression where necessary. Recheck meaning after each substantial cut.

A qualification is a word or phrase that limits a statement's certainty, frequency or scope. It often occupies little space while carrying essential meaning. Treat it as part of the idea, rather than as expendable wording.

For the soybean task, the distinction between varied conditions and all conditions matters. For Green Sahara, the possibility of migration must remain a possibility. These are accuracy checks, even though the words involved are short.

Finally, consider whether the result is readable without the original notes. A finished summary should report a coherent account. It should not require the reader to supply missing verbs, guess which noun a phrase describes, or invent connections between isolated statements.

Glossary

• Summary — A brief connected account that selects and restates the important information in an original passage.
• Paraphrasing — Expressing an idea in different wording while preserving its original meaning and strength.
• Note-making — Recording selected important ideas in shortened form, usually for personal reference.
• Main idea — A central point needed to communicate the meaning of the passage being shortened.
• Nominalising — Changing verbs into nouns, a transformation distinguished from expanding notes into complete sentences.
• Connector — A word or expression linking ideas so that their relationship becomes clear.
• Precision — Accuracy of expression that conveys the intended meaning without unnecessary or misleading wording.
• Apposition — Placing a noun phrase beside another noun to identify or explain it.
• Present participle — An “-ing” verb form, illustrated by “growing” in the soybean reduction exercise.
• Precocious — Showing abilities unusually early, especially in relation to the person's age.
• Versatile — Capable in several different fields, preserving the idea of breadth of ability.
• Qualification — Wording that limits a claim's certainty, frequency or scope and must survive paraphrasing.
• Fossil water — Water stored from prehistoric times, discussed as an underground resource in Green Sahara.
• Perihelion — The earth's closest approach to the sun, used in explaining changes affecting monsoons.

Common errors and misconceptions

• Misconception: A summary is a list of abbreviated notes. Correct: Expand the selected points into full sentences and link them with suitable connectors.
• Misconception: Every illustration deserves space because it appears in the passage. Correct: Select the main information and reduce examples, explanations and repetition.
• Misconception: The shortest replacement is automatically the best. Correct: A replacement must preserve meaning. “Versatile” retains the breadth of achievement in the example.
• Misconception: A summary must invariably be exactly one-third of its passage. Correct: It is usually one-third; follow any particular length instruction supplied with the task.
• Misconception: Words such as “often” and “perhaps” can be removed without consequence. Correct: These qualifications affect the claim and must remain when that claim is retained.
• Misconception: Accurate dates alone provide a complete summary of Green Sahara. Correct: Retain the explanation linking monsoon movement, vegetation loss, water retention and drying.
• Misconception: The soybean reduction target and final printed label are identical. Correct: The instruction asks for about 72 words; the illustrated final version is labelled 74 words.

Exam-style questions with model answers

Q1. A writing task explains that notes are usually for personal reference, while a summary reports the main points in complete, connected sentences. State two differences between notes and a summary. [2 marks]

1. Notes usually serve personal reference, whereas a summary presents the important points for reporting.
2. Notes use shortened points; a summary expands them into complete sentences and connects the ideas appropriately.

Q2. A passage describes children with intelligence far beyond their age and says that they often become ordinary rather than outstanding adults. “Precocious” means unusually advanced for one's age. Suggest the compact substitution and explain why “often” must remain. [2 marks]

1. Replace the description of the children with “precocious children”, preserving the idea of unusually early ability.
2. Retain “often” because the statement concerns a frequent outcome; removing it changes the strength of the original claim.

Q3. Given these soybean details: the beans are seeds of a leguminous plant, can grow in varied soils and climates, supply whole beans, sprouts and processed foods, and are also used for candles and bio-diesel. Explain three decisions for compressing these details without changing them. [3 marks]

1. Join the plant's identity and growing conditions in one sentence, keeping “can” and “varied” so that the conditions are not expanded into a claim about every environment.
2. Keep the broad food categories together: whole beans, sprouts and processed foods communicate the range of food uses economically.
3. Retain candles and bio-diesel as the additional uses, since describing food uses alone would leave out a distinct part of the supplied information.

Q4. The soybean exercise labels its original passage 225 words, selected points 111 words, first shorter version 90 words and final illustrated version 74 words. The final reduction instruction asks for about 72 words. Explain four stages of this reduction using those details. [4 marks]

1. The original passage is labelled 225 words and provides the material from which important information must be selected.
2. The selected points are labelled 111 words. This is an intermediate selection that can undergo further compression.
3. The first shorter version is labelled 90 words, showing another stage of reducing the selected content into a briefer account.
4. The next instruction requests about 72 words, while the illustrated final version is labelled 74 words. Keep the target and the printed result distinct.

Q5. Use these supplied facts from Green Sahara: northward monsoon movement brought rain to North Africa 10,000 years ago; the Sahara was green 6,000 years ago; around 5,000 years ago the monsoon moved south; vegetation then decreased and soil held less water; fewer clouds formed and rainwater was rapidly lost; by 4,000 years ago present conditions had developed. Explain this development in six connected points. [6 marks]

1. A northward shift of the monsoon brought rain to North Africa 10,000 years ago, establishing an important earlier stage in the environmental account.
2. The Sahara was green 6,000 years ago. This condition contrasts with the dry landscape described at the end of the sequence.
3. Around 5,000 years ago, the monsoon shifted south again. Retain “around” because the supplied time reference is approximate.
4. As vegetation declined, the soil became less able to hold water. These related changes help explain how drying continued.
5. Fewer clouds formed, and rainwater was rapidly lost. These processes continued the loss of water rather than restoring wetter conditions.
6. By 4,000 years ago, the present conditions had developed. “By” identifies the condition reached by that time, rather than an exact starting date.

Q6. Check a summary against these five original claims: summaries are usually one-third of the original; precocious children often become mediocre adults; soy-protein foods are likely to reduce coronary heart disease risk; some Saharan fossil water is possibly a million years old; inhabitants perhaps migrated towards the Nile Valley. Explain five wording checks that preserve the original strength. [5 marks]

1. Keep “usually” with the one-third guide. It describes a general relationship between lengths and does not establish a requirement that applies without exception.
2. Keep “often” with the outcome for precocious children. The statement describes frequency and must not become a universal prediction about those children.
3. Keep “likely” with reduced heart disease risk. A concise paraphrase must not turn this qualified statement into a guaranteed result.
4. Keep both “some” and “possibly” with the fossil water's age. They limit the amount of water concerned and the certainty of its dating.
5. Keep “perhaps” with migration towards the Nile Valley. The supplied statement presents migration as a possibility, so the summary must preserve that uncertainty.

Key takeaways

• Summarising selects important information and paraphrases it in a connected account that preserves the original meaning.
• Notes usually support personal reference; a summary expands selected points into full sentences for reporting.
• Underline important ideas, prepare shortened points, remove unnecessary development, and connect the retained information clearly.
• Precise vocabulary, apposition and participle phrases can reduce wording while preserving the information a sentence conveys.
• The soybean exercise demonstrates progressive reduction from a fuller passage through selected points to shorter connected versions.
• Green Sahara requires a clear contrast between present dryness and a greener past, followed by the explanation of change.
• Keep qualifications such as usually, often, likely, possibly and perhaps whenever you retain the claims they limit.
• Check coverage, meaning, connections, expression and length before treating a draft as a finished summary.

Test yourself

What two activities are combined in summarising?

It combines selection of important information with paraphrasing that preserves the original meaning.

Why does a summary need more than a set of shortened notes?

A summary reports the main points through complete sentences linked with suitable connectors.

What does nominalising mean?

It means changing verbs into nouns, rather than expanding the points into complete sentences.

Which word captures excellence across several fields in the vocabulary exercise?

“Versatile” captures breadth of ability across the different fields described in the example.

How does “a legume” function beside “soybean”?

It is a phrase in apposition, identifying soybean without needing a separate full sentence.

Which three actions make up the soymilk preparation sequence?

The preparation sequence is soaking the soybeans, grinding them and then straining the mixture.

Why must “perhaps” remain in a reference to migration towards the Nile Valley?

It marks migration as a possibility; removing it would strengthen the claim into a certainty.

What uncertainty closes the explanation in Green Sahara?

No one knows how human-driven climate change may alter the Sahara in the future.