TAILIEUCHUNG - How to prepare for the foefl part 28

The review of structure in this book supports recognition by alerting students to avoid certain common distractors. Many excellent teachers take this one step further by using | MODEL TEST 1 271 Section 3 Reading This section measures the ability to read and understand short passages similar in topic and style to those that students are likely to encounter in North American universities and colleges. This section contains reading passages and questions about the passages. There are several different types of questions in this section. In the Reading Section you will first have the opportunity to read the passage. You will use the scroll bar to view the rest of the passage. When you have finished reading the passage you will use the mouse to click on Proceed. Then the questions about the passage will be presented. You are to choose the one best answer to each question. Answer all questions about the information in a passage on the basis of what is stated or implied in that passage. Most of the questions will be multiple-choice questions. To answer these questions you will click on a choice below the question. To answer some questions you will click on a word or phrase. To answer some questions you will click on a sentence in the passage. To answer some questions you will click on a square to add a sentence to the passage. 272 TOEFL MODEL TESTS It has long been known that when the green parts of plants are exposed to light under suitable conditions of temperature and moisture carbon dioxide is absorbed by the plant from the atmospheric CO2 and oxygen is released into the air. This exchange of gases in plants is the opposite of the process that occurs in respiration. In this plant process which is called photosynthesis carbohydrates are synthesized in the presence of light from carbon dioxide and water by specialized structures in the cytoplasm of plant cells called chloroplasts. These chloroplasts contain not only two types of light-trapping green chlorophyll but also a vast array of protein substances called enzymes. In most plants the water required by the photosynthesis process is absorbed from the soil by the roots and translocated .

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