您正在看的高中一年级是:人教版高一Unit 19　Modern agriculture。 ome active.

　　2.Drills in grammar to get the students to have a clear concept.

　　3.Repetition to make the student master what they learn.

　　Teaching Aids:

　　1.a tape recorder.

　　2.a projector and some slides.

　　3.a computer for multimedia use.

　　Teaching Procedures:

　　step Ⅰ.Greetings and Revision

　　(Greet the whole class as usual.Then teacher asks some students to read the text aloud.)

　　T:Now look at the screen,please.Match the words on the left with their meanings on the right.Pair work.Write your answer on a piece of paper.Later we'll check the answers.

　　1.drought　A.(of land)suitable or used for growing crops

　　2.arable B.hang upon,be depend ent of

　　3.fertilization C.a long period of dry weather,when there is not enough water

　　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.

　　SF:fertilize:Rice growers fertilize their fields by flooding them with water.

　　fertilization:Proper fertilization is important for farming.

　　SG:inform:He informed them of his arrival.

　　information:The information might be false.

　　SH:protect:It is our duty to protect our country.

　　protection:The protection of our country is the duty of us all.

　　SI:modify:Adjectives modify nouns.

　　modification:The article needs some modification.

　　Step Ⅲ.Grammar:The use of “It”(2)

　　T:(Teacher shows some sentences on the screen.)

　　Look at the two groups of sentences on the screen:

　　T:Are sentence a and b in each group have the same meaning?

　　Ss:Yes.Both of the two sentences in each group have the same meaning.

　　T:Are there any difference?Sa,can you tell me?

　　Sa:Yes.Sentence a is the emphatic form,while sentence b is normal.Am I right?

　　T:Yes,you are right.“It is/was…that…”is the emphatic construction.This structure can be used to