《毕金献阅读理解》电子书节选之四_大学英语阅读

《毕金献阅读理解》电子书节选之四

　　[D] modern electronic devices have enabled us to predict the weather accurately.

　　20. We can conclude from the text that

　　[A] man is very much at the mercy of weather.

　　[B] man is doomed to be destroyed by weather.

　　[C] weather is sure to be tamed by human beings.

　　[D] it s only a matter of time to conquer weather.

　　Part B

　　Directions:

　　In the following text, some sentences have been removed. For Questions 21 25, choose the most suitable one from the list A G to fit into each of the number blanks. There are two extra choices, which you do not need to use. Mark your answers on ANSWER SHEET 1.

　　Ecologists have generally defined the environment as the external conditions and influences affecting the life and development of organisms. From this basic concept a definition of the human environment can be derived by replacing organisms by man in the above definition. Further clarification of the nature of human conditions and influences is needed.

　　. The lithosphere includes the Earth s solid crust down to an average depth of 60km into the interior of the globe. The hydrosphere is made up by the oceans, lakes, rivers, icecaps and other water bodies. The atmosphere comprises the gaseous envelope of the planet.

　　Living organisms and non-living parts depend upon each other and interact in complex ways, which are studied by ecologists with the fundamental ecosystem approach.