高一英语下册 Unit19 Modern agriculture第五课时教案 大纲人教版第一册文档格式.docx

高一英语下册 Unit19 Modern agriculture第五课时教案 大纲人教版第一册文档格式.docx

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1.Reviewmethodtorevisethemonuseof“it”.

2.Inductivemethodtogothroughsomesentencepatternswith“it”.

3.Practicetoconsolidatetheuseof“it”.

TeachingAids:

1.aprojectorandsomeslides

2.aputerformultimediause

TeachingProcedures:

stepⅠ.GreetingsandRevision

（Teachergreetsthewholeclassasusualandshowsthescreen.）

T:

Sofarwe'

velearnedseveralusesof“it”.Nowpleaselookatthescreen.Discussthesentenceswithyourpartnerandtellwhattheword“it”ineachsentencereferstoanditsfunction.WriteyouranswersonapieceofpaperandlaterI'

llasksomestudentstosaytheanswers.

Discussthefollowingsentencesandtellthefunctionof“it”.

1.It'

sdifficulttorememberalltheirnames.

2.It'

sveryquietinthecafe.

3.Itrainedforthreedays.

4.Hemadeitclearthathedidn'

twanttospeaktome.

5.Itwasniceseeingyou.

6.ItwasonTuesdaythatMrs.Smithcame.

7.It'

sthreemilesfromheretothenearestgarage.

8.Atallmanstoodupandshookhands.ItwascaptainLawrie.

9.Ihearyouboughtanewbike.Canyoushowittome?

10.Itwasfiveo'

clockwhenwegotbackhomeyesterday.

11.Itwasdirtyandwetbelowtheshipwheretheslaveswerekept.

12.Itwasonthiscoastthatlotsofhispeopledisappeared.

13.Itwasmostlikelythatonethirdofthemhadlosttheirlives.

（Afterafewminutes.）

Areyouready?

Ss:

Yes.

Whowillgiveustheanswers?

Onestudent,onesentence.Volunteers?

SA:

“It”isusedasaformalsubjectinthefirstsentence.Itsrealsubjectistheinfinitive“torememberalltheirnames.”

SB：

2.“It”referstopresentsituation.

SC:

3.“It”refersto“weather”.

SD:

4.“It”isusedasaformalobject.

SE:

5.“It”isusedasaformalsubject.

SF:

6.Thissentenceisanemphaticstructure,emphasizingtheadverbialoftime.

SG:

7.“It”isusedhereasanimpersonalpronoun,referringtodistance.

SH:

8.“It”hereisusedtopointoutdefinitelyaperson.

SI:

9.“It”hereisappliedtoanewbike.

SJ:

10.“It”referstotime.

SK:

11.“It”isusedasthesubject,expressingstateofthingsingeneral.

SL:

12.Thissentenceisalsoanemphaticconstruction,emphasizingadverbialofplace“onthiscoast”.

SM:

13.Theword“it”hereisusedasaformalsubject.

Quiteright.Asweallknow,theword“it”canbeusedasapersonalpronoun.Inthiscase,“it”isnotgenerallyappliedtoaperson,buttoathingorananimaljustmentioned,suchas“Sentence9”.Secondly,“it”isusedasasubjectinexpressionsoftime,weather,distance,etc,suchas,inSentence2,3,7,10,11.Thirdly,“it”canbeusedasaformalsubjectorobject.（Therealsubjectisaninfinitiveorgerundialphraseoraclause.）Suchas,insentences1,4,5,13.Fourthly,inSentence8,“it”pointstoapersonandiscalledtheDemonstrativeit.Itcanalsobeusedintheemphaticstructure,suchasinsentence6,12.

StepⅡ.Practice

Fromtheexercisewe'

vedonejustnow,wecanseethatyouareallfamiliarwiththemonuseof“it”.Next,let'

sseesomeimportantsentencepatterns.Now,I'

llgiveyouanexerciseonthescreen.（Showthescreen.）Pairworkorgroupwork.Someofthepatternsareperhapsnotfamiliartoyou.Ifso,lookattheanswerssomeminuteslaterandrememberthem.

pletethesentences,payingattentiontothestructuresofthemandtheuseof“it”.

1.__________（据报道）thatdozensofchildrendiedintheaccident.

2.__________（真遗憾）thathecan'

tswimathisage.

3.__________（很可能）thattheywillbeatustonight.

4.__________（看来）thatheenjoyspopsongsverymuch.

5.__________（还是一个问题）whenweshallhaveoursportsmeet.

6.__________（还不确定）whetherhecanattendthisconferenceornot.

7.__________（不要紧，没关系）whetherwegotogetherorseparetely.

8.Itisuptoyou__________（决定是否接受这项工作）.

9.Itisimportant__________（我们学英语）.

10.Itiskind__________（你帮助我）.

11.Ittookmefivedays__________（解决这问题）.

12.It'

snouse__________（与她争论）.

（Someminuteslater,teachershowstheanswersonthescreentoletthestudentscheck.）

Suggestedanswers:

1.Itwasreported…

Itbe+p.pknown,thought,told,believed,hoped…）thatclause.

sapity…

It+be+n.（anhonour,agoodthing,afact,asurprise…）+thatclause.

3.Itislikely…

Itbe+adj.（wonderful,ture,important,surprising,clear,…）+thatclause

4.Itseems

Itseem/appear/happen+thatclause.

5.Itisstillaquestion…

Itbe+n.+whether/when/whereclause

6.Itisuncertain…

Itbe+adj.（notdecided,uncertain）+whether/when/howclause

7