Unit 19 Modern Agriculture教案

3 modern agriculture means finding ways to ___c___.
   a increase irritation & stop using fertilisers
   b stop irritation & using fertilisers
   c increase production & be friendly to the environment
   d produce the same amount while taking better care of nature
4 in the sentence “ … they are protected from the wind, rain & insects”, “they” means _c_.
   a greenhouses                   b roots
   c vegetables                     d tomatoes
5 in gm “m” stands for “modified”, which means “changed”. what changes is ___c___.
   a the way in which poor soil is made better
   b the way in which chinese farmers work on their land
   c the way in which crops develop from seed
   d the way in which farmers take care of the environment
2) answer the following questions by further understanding about the text.
1 at the beginning of the passage, why does the writer say “it is on the arable land that the farmers produce food for the whole population of china”?
it shows how great we chinese are: we produce food for so many people with so little arable land.
2 what does the writer want to tell us by saying, “not only food production is important but also taking care of the environment.”?
we must take care of the environment as well as food production. that is to say, we should produce more food by means of new techniques which will not do harm to the environment.
3 what can we infer from the sentence “in china about one hundred research stations are now doing gm research to make better tomatoes, cotton …”
in the future we can eat the hi-tech produced food, which contains more vitamins & will not do harm to the environment.
4 what can you imagine about the future of food production?
we can produce more food than now with new techniques.
3) group work:
through gm it is possible to change fruits, vegetables & even animals. we can change the way they grow, where they can grow, how they will taste, what color & what shape they will have. decide which fruits, vegetables & farm animals you would change, explain how you would change them & why.
 kind how would you change it? why do you want to change it in this way？
fruit   
vegetables