The student preparing for the TOEFL will be required not only to recognize correct answers but also to eliminate incorrect answers, or distractors, as possibilities. The review of structure in this book supports recognition by alerting students to avoid certain common distractors. | MODEL TESTS 261 For questions that require you to click on a word or phrase circle the word or phrase in the passage. Look at the word one in the passage. Click on the word or phrase in the bold text that one refers to. Solar astronomers do know that the sun is divided into five general layers or zones. Starting at the outside and going down into the sun the zones are the corona chromosphere photosphere convection zone and finally the core. The first three zones are regarded as the sun s atmosphere. But since the sun has no solid surface it is hard to tell where the atmosphere ends and the main body of the sun begins. The sun s outermost layer begins about 10 000 miles above the visible surface and goes outward for millions of miles. This is the only part of the sun that can be seen during an eclipse such as the one in February 1979. At any other time the corona can be seen only when special instruments are used on cameras and telescopes to block the light from the photosphere. The corona is a brilliant pearly white filmy light about as bright as the full moon. Its beautiful rays are a sensational sight during an eclipse. The corona s rays flash out in a brilliant fan that has wispy spikelike rays near the sun s north and south poles. The corona is generally thickest at the sun s equator. The corona is made up of gases streaming Look at the word one in the passage. Click on the word or phrase in the bold text that one refers to. I. J Solar astronomers do know that the sun is divided into five general layers or zones. Starting at the outside and going down into the sun the zones are the corona chromosphere photosphere convection zone and finally the core. The first three zones are regarded as the sun s atmosphere. But since the sun has no solid surface it is hard to tell where the atmosphere ends and the main body of the sun begins. The sun s outermost layer begins about 10 000 miles above the visible surface and goes outward for millions of miles. This is the only
