外研版高中英语学案选择性必修第四册精品课件 Unit 5 Section A.ppt

;内容索引;;Ⅰ.重点单词;识记阅读词汇

1.intriguev.?

2.pyramidn. ?

3.astronomyn. ?

4.canaln. ?

5.tropicaladj. ?

6.cyclonen. ?

7.megadroughtn. ?

8.downfalln. ?;串记拓展词汇

1.civilisationn.文明(社会)→v.使文明?

2.abandonv.离弃,逃离→adj.被放弃的,被遗弃的?

3.dismissv.拒绝考虑,否定→n.解雇,开除;不予考虑?

4.expansionn.扩大;增加→v.扩张,使膨胀,展开?

【掌握构词规律快速记牢单词】

-al结尾的名词

dismiss+al=dismissal

arrive+al=arrival

approve+al=approval

dispose+al=disposal;Ⅱ.重点短语;;StepOne While-reading;Task2Readingforthemainidea

Readthetextquicklyandfindoutthemainideaofthetext.;Task3Readthetextcarefullyandchoosethebestanswer.

1.Whatistheauthor’spurposeinstartingthepassagewiththestoryaboutWilliamGadoury?

A.TointroduceMayacivilisation.

B.Toamusethereaders.

C.ToemphasizetheimportanceofMayacivilisation.

D.ToinformusofthelocationoftheMayacity.;2.WhywasMayacalendarsoaccurate?

A.Becauseitwasverycomplicated.

B.BecausetheMayatookadvantageoftheirunderstandingofmathematicsandastronomy.

C.Becausethereweremanycharactersinit.

D.BecausetheMayahadawritingsystem.;3.WhatisthepurposeofEuropeans’arrivalinCentralAmerica?

A.TosaveMayapeople.

B.TolearnsomethingfromMayapeople.

C.Toaskforwealth.

D.TodestroyMayacivilisation.;4.WhatismostlytobeblameforthedeclineofMayacivilisationaccordingtoparagraph4?

A.TheMayapeoplethemselves.

B.Anaturaldisaster.

C.Conflictsbetweencities.

D.Adeadlydisease.;StepTwo Post-reading;WhyMayacivilisationcollapsedremainsamystery.Someresearchseems

8.(indicate)thattheMayapeoplethemselvesweretoblameforthedownfallwhileresearchalsosuggeststhatnaturaldisastersmayhaveledtothedeclineofit.Whateverthereasons,Mayacivilisationleftmany

9.(mystery)forpeopletosolve.Meanwhiletheriseandfallofthecivilis