Saving the earth（The Fourth Period）

s:…
   (one of the students stands up and gives his speech. the others go on. after the speeches, teacher shows the following on the screen. )
tips for preparing a speech:
knowing how to give a good speech is a useful skill. if you want to give a good
speech, there are a few things you need to consider.
 i. think about your audience
 a. who will listen to your speech?
 b. what are they interested in?
 c. what do they want to know?
 d. what do they already know?
 outlines like these will help you decide what you are going to say.
 ii. prepare and practise
 a. research your topic carefully and organise the material,            
 b. before you give the speech, practise in front of a mirror or together with a friend.
t: your speeches were all made successfully, but in order you can make a better speech, i give you some advice on preparing a speech. look at the screen. let's study together.…
step iv writing
t: as we all know, environment problems are becoming more and more serious with the development of modern agriculture and industry. among all the problems, which do you think is the most serious one? why do you think so? what do you think should be done to solve it? now write a paragraph to tell your reader about these questions.
  (teacher writes the questions on the bb. )
t: you can prepare your paragraph as follows: first, write a sentence that states
   your opinion, for example,“i think that air pollution is the most serious problem because it does great harm to our health. ”then list as many reasons as possible. finally, use the sentences to organise your paragraph. are you clear?
ss: yes.
t: well. i'll show you some words and phrases on the screen. you can refer to
   them. after finishing your paragraph, use the check list in unit 2 to check it
   for errors and mistakes. are you clear?
ss: yes.
(teacher shows the following on the screen and the students begin to work.)
many products are bad for the environment.
it is wrong to buy products that are harmful to the environment.
to   think   that there  is  nothing we can do is incorrect.
what we do is important because it affects  the  environment i suggest that we do something about these problems.

i would advise people not to buy products that harm the environment.

i recommend that all  of  us  should think about what we do  and  what we buy.