Introduction: The Importance of Understanding Complex Sentences
Welcome to today’s lesson, where we’ll be discussing the top 10 techniques for understanding complex sentences in TOEFL iBT Reading. Now, you might wonder why it’s crucial to master this skill. Well, in the reading section, complex sentences are abundant. They contain multiple clauses, phrases, and modifiers, making them challenging to decipher. However, by employing the right strategies, you can unravel their meaning and answer related questions accurately.

1. Identify the Main Clause
When confronted with a complex sentence, start by identifying the main clause. This clause usually contains the primary idea or the subject and verb pair. Understanding the main clause provides a foundation for comprehending the sentence’s overall meaning.
2. Break Down Subordinate Clauses
Subordinate clauses provide additional information but are dependent on the main clause. To understand them better, isolate them from the main clause and analyze their content individually. This way, you can grasp their purpose and how they relate to the main idea.
3. Pay Attention to Conjunctions
Conjunctions, such as ‘although,’ ‘because,’ or ‘however,’ play a crucial role in complex sentences. They indicate the relationship between clauses. For instance, ‘although’ suggests a contrast, ‘because’ signifies a cause-effect relationship, and ‘however’ introduces a contrasting idea. Identifying these conjunctions helps in understanding the sentence’s logical structure.
4. Analyze Modifiers
Modifiers, such as adjectives and adverbs, provide additional details about a noun or a verb. They can significantly impact the sentence’s meaning. Therefore, it’s essential to identify and understand the modifiers in a complex sentence. Pay attention to their placement, as a misplaced modifier can alter the intended message.
5. Look for Signal Words
Signal words, like ‘for example,’ ‘in contrast,’ or ‘similarly,’ act as signposts, guiding you through the sentence’s structure. They indicate a shift in ideas, a comparison, or an illustration. By recognizing these signal words, you can anticipate the sentence’s direction and better comprehend its content.
6. Use Context Clues
In TOEFL iBT Reading, you often encounter unfamiliar words. However, the surrounding context can provide valuable clues about their meaning. Look for synonyms, antonyms, or explanations within the sentence or the paragraph. This contextual analysis can help you deduce the word’s definition and its role in the sentence.

7. Practice Skimming and Scanning
The reading section is time-constrained, so it’s crucial to read efficiently. Skimming involves quickly going through the passage to get a general idea, while scanning entails searching for specific information. By mastering these techniques, you can locate relevant sentences, understand their structure, and answer questions more effectively.
8. Familiarize Yourself with Sentence Patterns
In English, certain sentence patterns are commonly used. For instance, ‘If…then’ sentences indicate a conditional relationship, while ‘Not only…but also’ structures suggest a parallelism. By familiarizing yourself with these patterns, you can quickly identify the sentence’s structure and understand its meaning.
9. Read Regularly
Reading extensively is one of the best ways to improve your comprehension skills. Choose a variety of texts, including academic articles, newspapers, and fiction. As you read, pay attention to sentence structures, vocabulary, and the overall flow. This consistent practice will gradually enhance your understanding of complex sentences.
10. Review and Analyze
After completing a reading passage, take the time to review and analyze it. Look for challenging sentences or unfamiliar vocabulary. Break them down, apply the techniques we discussed, and try to understand them thoroughly. This post-reading analysis is invaluable for reinforcing your understanding and identifying areas for improvement.
