5th period: writing 6 period: extensive reading 7th& 8th period: listening Pre-reading Tasks (45m.) 1 Introduction(5m. Life depends on energy. All human beings eat food and make use of the chemical energy in it, and do so all other animals. Calling energy the currency of the ecological system, the author argues that it is neither love nor money but energy that makes the world go round. However, our energy sources are limited and, to make matter worse, we are rapidly using up energy supplies. It is extremely important therefore that we conserve the supplies we have so as to make them last as long as possible In this article the author describe in great detail of deer round the year and the various means by which they survive the hard winter. When he concludes by saying"it is biologically reasonable for deer to reduce their cost of living to increase their chances of surviving in winter. he is actually leading us to the question: if deer can do that, why not human beings? 2. Warm-up Questions:(10m) 1)What kinds of energy sources do we have? 2)How many of them are renewable? And how many of them are not? 3) Among them, what kinds are raw power? 4) What is the current situation of energy sources in the world? 3. Study the male and female names of these animals (5m) ANIMAL NAME: FEMALE NAME: MALE NAME bull mare stallion ewe ram fox vIxen fox duck drake goose gander cat9 5 th period: writing 6 th period: extensive reading 7 th & 8th period: listening Pre-reading Tasks (45m.) 1. Introduction (5m.) Life depends on energy. All human beings eat food and make use of the chemical energy in it, and do so all other animals. Calling energy the currency of the ecological system, the author argues that it is neither love nor money but energy that makes the world go round. However, our energy sources are limited and, to make matter worse, we are rapidly using up energy supplies. It is extremely important therefore that we conserve the supplies we have so as to make them last as long as possible. In this article the author describe in great detail of deer round the year and the various means by which they survive the hard winter. When he concludes by saying "it is biologically reasonable for deer to reduce their cost of living to increase their chances of surviving in winter." he is actually leading us to the question: if deer can do that, why not human beings? 2. Warm-up Questions: (10m.) 1) What kinds of energy sources do we have? 2) How many of them are renewable? And how many of them are not? 3) Among them, what kinds are raw power? 4) What is the current situation of energy sources in the world? 3. Study the male and female names of these animals. (5m.) ANIMAL NAME: FEMALE NAME: MALE NAME: ox cow bull horse mare stallion sheep ewe ram pig sow boar fox vixen fox fowl hen cock duck duck drake goose goose gander cat queen tom dog bitch dog