The TOEFL iBT Official Prep Book (Volume I)

Reading 9 : Identifying Main Ideas and Details

Answer Key

Activities 9.1, 9.2, 9.3, 9.4 1 . Classify the following types of information found in a Reading passage . Write M for main idea or D for detail .

A . M B . D C . M D . M E . D F . M G . M H . M I . D J . D

2. Write M by the main ideas and D by the details from the Reading passage Modern Architecture in the United States.

A . M B . D C . M D . D E . D F . M G . M H . D I . D

3. In the twentieth century, new materials and construction techniques contributed to a change in architectural style . C, D, E

4. The remains of ancient life are amazingly well preserved in the form of fossils. A, C, F

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