tailieunhanh - The complete guide to the toefl test part 12

Tham khảo tài liệu 'the complete guide to the toefl test part 12', ngoại ngữ, toefl - ielts - toeic phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 54 Section 1 Guide to Reading Passage 6 Some 2 400 years ago the Greek philosophers Democritus and Leucippus first proposed the idea of the atom. They suggested that if you slice an item such as a loaf of bread in half and then in half again and again until you could cut it no longer then you would reach the ultimate building block. They called it an atom. Today we know that an atom is even more infinitesimal than that. To grasp the scale of the atom look at the dot over the letter . Magnify this dot a million times through an electron microscope and you will see an array of a million ink molecules. If you could somehow blow up this image a million times you would see the fuzzy image of the largest atoms. And as tiny as atoms are they are composed of still tinier subatomic particles. 29. slice_ 30. ultimate_ 31. infinitesimal__ 32. grasp_ 33. blowup 34. fuzzy_ Exercise Focus Answering multiple-choice vocabulary questions in short passages. Directions Read the passages and then answer the questions about the vocabulary in the passages by marking the oval next to the correct answer. Passage 1 The Civil War created feverish manufacturing activity to supply critical material especially in the Northern states. When the fighting was over the stage was set for dramatic economic growth. Wartime taxes on production had vanished and the few taxes that remained leaned heavily on real estate not on business. The population flow from farm to city increased and the labor force that it provided was buttressed by millions of recent immigrants. These newcomers were willing to work for low wages in the