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The Paragraph: Supporting Sentences

B1 (Intermediate)Writing

The Paragraph: Supporting Sentences

After the topic sentence come the supporting sentences — the middle of the paragraph. Their job is to explain, prove, and develop the main idea with details, examples, and reasons. Good supporting sentences turn a plain statement into a convincing paragraph. This lesson shows you how to build them.

After the topic sentence come the supporting sentences — the middle of the paragraph. Their job is to explain, prove, and develop the main idea with details, examples, and reasons. Good supporting sentences turn a plain statement into a convincing paragraph. This lesson shows you how to build them.

1. What supporting sentences do

Every supporting sentence must support the topic sentence. They add detail in three main ways:

Type of support Example (topic: my city has great food)
Examples For example, the street markets sell fresh koshari.
Reasons This is because many cultures live here.
Details / facts There are over fifty restaurants downtown.

2. Stay relevant — cut what does not fit

If a sentence does not support the topic sentence, it is irrelevant and must be removed, even if it is true and interesting.

Relevant or irrelevant?Topic sentence: Seoul is a great city to visit.
• “There are many museums.” → relevant
• “The restaurants are famous.” → relevant
• “The traffic is terrible.” → irrelevant (it is not something “great”) — remove it.

3. Order: general → specific

A common, clear pattern is to give a general support sentence, then make it specific with an example.

  • General: The city has many historic places.
  • Specific: For example, the old citadel is over 800 years old.

4. Introduce examples with transitions

Use signal words to introduce support: for example, for instance, such as, in addition, also, because.

  • Reading helps in many ways. For example, it builds vocabulary.
  • The course is useful because it is practical.
Tutor tip for Arabic speakersA strong English paragraph does not just repeat the main idea in different words — it proves it with specific examples and reasons. After each supporting sentence, ask yourself “like what?” or “why?” and answer it in the next sentence. This “general, then specific” habit is exactly what B1 examiners look for, and it stops paragraphs from sounding empty.

Examples from EduCareer

  • Topic: Studying online is convenient. Support: For example, you can learn from home and choose your own time.
  • Topic: Aisha is a hard worker. Support: She studies every evening and never misses a class.
  • Topic: English opens doors. Support: It helps because most global business uses it.
Common mistakes

(Topic: my city is beautiful) The traffic is very bad.  →  Remove it — it does not support “beautiful.”

My city is nice. My city is very nice. It is a nice city.  →  Add real detail: It has clean parks and a famous old market.

Reading is good. Cats are cute.  →  Keep every sentence on the topic.

Check your understanding

Answer the questions below. You will see instantly if you are right.

1.What is the job of supporting sentences?
They explain, prove, and develop the topic sentence.
2.Supporting sentences add detail through:
Examples, reasons, and details/facts.
3.Topic: "Seoul is a great city to visit." Which is IRRELEVANT?
"Terrible traffic" is not something great \u2014 remove it.
4.An irrelevant sentence should be:
Cut sentences that do not support the topic.
5.A common clear order is:
Give a general point, then a specific example.
6.Which transition introduces an example?
"For example" introduces support.
7.Topic: "Reading helps in many ways." Best support:
A relevant example develops the idea.
8.What question should you ask after a support sentence?
Answering "like what/why" adds specific detail.
9.Which word signals a reason?
"because" gives a reason.
10.What is wrong with "My city is nice. It is very nice. It is a nice city."?
It repeats instead of adding support.
11.Topic: "My city is beautiful." Which sentence fits?
It supports "beautiful".
12.Which is a general-then-specific pair?
General statement + specific example.
13."such as" is used to:
"such as" introduces examples.
14.Every supporting sentence must:
All support the one main idea.
15.Topic: "Studying online is convenient." Best support:
A relevant, specific example.
16.Which transition ADDS more information?
"in addition" adds more support.
17.A paragraph with strong support will:
Support proves the idea.
18.Topic: "Aisha is a hard worker." Best support:
It proves she is hard-working.
19.How do you check if a sentence belongs?
Relevance to the topic sentence is the test.
20.Best-developed support for "English opens doors":
Gives a clear reason (because...).

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