Unit 19 Modern agriculture
4.depend on d.not having enough
5.shortage e.putting fertilizer on land
6.short of f.use;put in use;take advantage of
7.irrigation g.a condition of having less than needed
8.make use of h.supplying water to dry land by man-made streams
9.delegation i.a group of persons acting for one or more others
(a few minutes later.)
t:are you ready?
ss:yes.
t:i'll show the answers on the screen.please check your answers with them.
suggested answers:
1.c 2.a 3.e 4.b 5.g 6.d 7.h 8.f 9.i
step ⅱ.word study
t:let's go on to do language study.first we'll do the first part:word study.as we all know,word formation is a useful tool in learning english.it can help us enlarge our vocabulary.we can get a noun by adding some sufixes to a verb,for example,form→formation,generally a verb+-tion=a noun.but there is something you should pay special attention to.now let's do the following exercise.write the noun form of the given verbs and the verb form of the given nouns.if you are not sure about them,please turn to a dictionary.then make sentences with each word.if you have anything you don't understand,have a discussion with your classmates.
(teacher goes among the students and help them to do the exercise.)
t:have you finished?(ss:yes.)let's check the answers.sa.write your answers on the blackboard,please.
answers
verb noun
irrigate irrigation
modernize modernization
populate population
produce production
fertilize/fertilise fertilization
inform information
protect protection
modify modification
t:now make sentences with each group words.one student,one group.
sb:irrigate:they irrigate their crops with water from this river.
irrigation:we often see irrigation canals on the land.
sc:modernize:they have failed to modernize the factories.
modernization:we will realize the four modernizations.
sd:populate:america was populated mostly by europeans.
population:china has a population of more than 1 200 000 000.
se:produce:australia produces wool and meat.
production:this country is famous for the production of cars.