张汉熙高级英语第一册课件 Lesson 3知识讲稿.ppt

use that power wisely of cause we must recognize that we have the responsibility to use the newly acquired capability in a prudent way and with proper restraint. the fragility of the earth’s natural systems: the earth’s natural systems are very delicate and can easily be disrupted. Para. 17 dramatic changes in two key factors a sudden and startling surge in human population a sudden acceleration of the scientific and technological revolution that define the physical reality of our relationship to the earth: that determine the actual state of our relationship with nature. with the addition one China’s worth of people Every ten years the newly-added population will equal the population of China; Every ten years, one more China’s population will be added to the population of the world. Worth: equal in size or number e.g. The storm did thousands of pounds’ worth of damage (=did damage worth thousands of pounds). I bought 10 pounds worth of food. He bought 10 dollars worth of postage stamps. magnification which has increased our power to influence the world around us to such a degree that can hardly be conceived magnification: the act of magnifying; the power of magnifying physical matter: material substance Para 18. the surge in population when viewed in a historical context: when we look at the matter from a historical point of view Julius Caesar : (102? B.C.- 44 B.C.), Roman statesman and general Christopher Columbus: (1451- 1506), discoverer of America, born Genoa, Italy Thomas Jefferson: [1743-1826) third President of the U.S. (1801-9), author of the Declaration of Independence. Declaration of Independence: full and formal declaration adopted July 4, 1776, by representatives of the thirteen colonies in North America announcing the separation of those colonies from Great Britain and making them into the United States Para. 19 the present faster increasing population in the course of one human life—mine: during the life span