外研版（2019）高中英语选择性必修第四册 Unit 5 Into the unknown 3 Using language 学案

Unit5Into the unknownPeriod2Using language学案学习目标

1.To reviewand masterthe usagesof noun clauses,and correctlyuse themin realcontexts.

2.To developintegrated skillsof listeningand speakingby completingrelevant tasks.

3.To learnand usenew words and expressionsused forrelating the unknown andmysteries.重点难点

1.To decideconnectives introducingnoun clausesand correctlyuse noun clauses inspecific contexts.

2.To extractkey informationto completetasks whenlistening tothe interviewabout sleep-related mysteries.

3.To talkabout facing the unknownor mysteriesusing newwords and expressions in the lesson.课前诊断Key words andexpressionsfor PeriodOne1make agetaway9set out2run forones life10unchanged3check out11delve4test thewaters12threw oneselfinto5steer clearof...13think twice6retreat14shrink from7subdue15look into8the unknown16investigation学习过程Step1Review noun clausesActivity1Fill in the blanks with proper connectives,and thendecide thetypes andfunctions ofnounclause.A.Although his theory has been dismissedby scholars,it showspowerful the secrets of AncientMay civilizationare among people.B.But thegreatest mysteryof allis caused the Maya to abandon most of their great cities.C.Maya civilization collapsed in the early16th centuryremains amystery.D.The factMaya society was technologically primitive makes its achievements all the moreincredible and mysterious.1subject clauseIt servesas thesubject of the sentence.2object clauseIt servesas theobject of the sentence.3predictive clauseIt servesas thepredictive ofthe sentence.4appositive clauseThe clausegives furtherinformation about the nounbefore theclause.Step2Practice Activity2Activity3Activity2Complete the noun clauseswith wordsin brackets.

1.In fact,it seemsthat theyappeared verydifferent fromthink.

2.In recent,scientists haveworked outlook:many ofthem weresmall withfeathers.

3.However,have feathersstill isntclear-it mighthave beenfor communicatingor forstaying warm,but notjustfor flight.

4.It seemsdependon theirhabitats.That is,dinosaurs whichcould flywould havehad differentcolors tothoseliving in the sea.Activity3Talk aboutwhat causedthe disappearanceof dinosaursusing nounclauses whereappropriate.Here arethe notesto helpyou.What causedthe disappearanceof dinosaurs:1a hugemeteorite hittingEarth2ash andgas fromerupting volcanoes3diseaseAmong themany unsolvedmysteries about dinosaurs,what reallyinterests meis theirdisappearance.One possibleexplanation is that_____________________________________________________________Step3Focus onvocabulary aboutfacing the unknownActivity5Read the passage andanswer thequestion.

1.What isthe flightinstinct Why do somepeople reactthat wayin theface ofthe unknown

2.What otherreactions couldpeople havewhen facingthe unknownActivity6Put thewordsandexpressions intothe table.9set outinto2run forones livesfrom10delve into3check out11think twice4test thewaters of12take action5steer clearof13shrink from6retreat to14look into7subdue15consider onesoptions1make aquick getaway8endureAvoiding ExploringOvercoming HesitatingStep4ListeningActivity7Before listening,understand thereading materialon Page

55.

1.What functions ofthe brain arementioned in the passage

2.What isthe currentresearch situationconcerning the brain

3.Share someinteresting factsabout the brain withthe class.Activity8Activity9Listen tothe interviewand finishthe followingtasks.

1.Choose thetopic discussedin the interview.A.Methods tokeep thebrain healthyand active.B.Sleep-related mysteries.C.Ways ofimproving sleepquality.D.Methods ofinterpreting dreams.

2.Listen againand completethe tableon Page55showing theoriesabout thehuman brainand DrLongscomments.The brainneeds timeto1The brain3when were awake.It needssleep to4Theories7in thebrain whilewere awake,and thebrain reflectson themand8inour dreams.Recent studentsprove thatour brains2during sleep.Dr LongsThere isnt5to confirmthis.It mightnot be6for sleep.commentsA lotof researchhas beenconducted,but westill cantprove that

9.食Unanswered Whydo we“see”our dreamsquestions南______________________________________________Step5Posting listening1Could youtell ussomething about...4What otherreasons couldthere befor itActivity1Useful expressionsfor askingfor more information andexplaining.2Its because...5Would youtell usmore about......prove...Asking for more informationExplainingStep6DiscussionActivity11Talk about the investigationinto anotherscientific mystery.Step7Language appreciation

1.There aremany mysteries about dinosaursto whichwe long to findexplanations.［句式分析］为从句，其结构为“介词从“to whichwe longto findexplanations^to+which+句”用来修饰说明先行词其中介词与构成固定搭配mysteries aboutdinosaurso explanationsexplanations to意为“对…的解释”；固定短语意为“sth longto do sth［尝试翻译］O

2.Interestingly,it isthe backpart ofthebrainthat isinvolved with our vision.［句式分析］本句为句式,，句子的其余部分”，本语境为六“It s++that+“I+主语+句子的其余部分”，句中短语意为“that+be involved with［尝试翻译］O【参考答案】Step1Review nounclauses［答案］Activity XFillintheblankswithproperconnectives,and thendecide thetypes andfunctionsofnounclause.A.Although histheory hasbeen dismissedby scholars,it showshow powerfulthesecretsofAncientMaycivilization areamongpeople.B.But thegreatest mysteryof allis what causedtheMayatoabandonmostof theirgreatcities.C.Why Mayacivilizationcollapsedintheearly16lh centuryremains amystery.D.The factthat Mayasocietywastechnologicallyprimitivemakesitsachievementsall themoreincredibleandmysterious.1subject clauseIt servesas thesubject ofthe sentence.C2object clauseIt servesas theobject ofthe sentence.A3predictive clauseIt servesas thepredictive ofthe sentence.B4appositive clauseThe clausegives furtherinformation aboutthenounbefore theclause.DStep2Practice Activity2Activity3【答案］Activity2Complete thenounclauseswith wordsin brackets.

1.In fact,it seemsthat theyappeared verydifferent fromthink.—what peoplethink

2.In recent,scientists haveworked outlook:many ofthem weresmall withfeathers.一what theylooked like

3.However,have feathersstill isntclear-it mighthave beenfor communicatingor forstaying warm,but notjustfor flight.what theylooked like

4.It seemsdependon theirhabitats.That is,dinosaurs whichcould flywould havehad differentcolors tothoseliving inthe sea.一as ifthey dependedonActivity3Talk aboutwhatcausedthe disappearanceof dinosaursusing nounclauses whereappropriate.Here arethe notesto helpyou.What causedthe disappearanceof dinosaurs:1a hugemeteorite hittingEarth2ash andgas fromerupting volcanoes3disease【答案】Among themany unsolvedmysteries aboutdinosaurs,what reallyinterests meis theirdisappearance.Onepossible explanationisthatthere wasa hugemeteorite hittingEarth.But whatI believedmost wasash andgasfrom eruptingvolcanoes.Wheie somuch magmawent,alltheliving thingsincluding dinosauislost theirlives.Besides,clouds offlic andsmoke blockedthe wholesky sothat theyhad nosunshine toenjoy andno oxygentotake in.Step3Focus onvocabulary aboutfacingtheunknownActivity5Read thepassage andanswer thequestion.

1.What isthe flightinstinct Whydo somepeople reactthat wayintheface oftheunknown

2.What otherreactions couldpeople havewhen facingtheunknown【答案】

1.Making aquick getaway.It isa humaninstinct.

2.They choseto subduetheir fearsand pursuetheunknown.【答案】Activity6Put thewordsandexpressions intothe table.1make aquick getaway9set outinto2run forones livesfrom10delve into3check out11think twice4test thewaters of12take action5steer clearof13shrink from6retreat to14look into7subdue15consider onesoptions8endureAvoiding ExploringOvercoming Hesitating1/2//6/133/4/9/10/147/8/1211/15Step4ListeningActivity7Before listening,understand thereading materialon Page

55.

1.What functionsofthebrain arementioned inthepassage

2.What isthe currentresearch situationconcerning thebrain

3.Share someinteresting factsaboutthebrain withthe class.【答案】

1.The brainisthecentre ofthe nervoussystem andcontrols mostofthebodys activities.The backpart of it isinvolvedwithour vision and the sidesofitare involvedin memory,speech andrhythm.

2.Thereisstill along wayto gobefore wecan completelyunderstand theworkings ofthebrain.Activity8Activity9Listen totheinterviewand finishthe followingtasks.【答案

1.Choose thetopic discussedintheinterview.B]A.Methods tokeep thebrain healthyand active.B.Sleep-related mysteries.C.Ways ofimproving sleepquality.D.Methods ofinterpreting dreams.

2.Listen againand completethe tableon Page55showing theoriesaboutthehuman brainand DrLongscomments.The brainneeds timeto1Theories Thebrain3when wereawake.It needssleep to47inthebrain whilewereawake,andthebrain reflectson themand8inour dreams.Recent studentsprove thatour brains2during sleep.Dr LongsThereisnt5to confirmthis.It mightnot be6for sleep,commentsA lotof researchhasbeenconducted,but westill cantprove that

9.离Unanswered Whydo we“see”our dreamsquestions金______________________________________________【答案】1rest anddo maintenance6the mostimportant reason2remain active7New connectionsare formedbetween parts.3makes lotsof poisonouschemicals8use themto formnew memories4remove thesechemicals9sleep isnecessary tothis function5enough data10Whydopeople dreamin colorand otherdontStep5Posting listening1Could youtell ussomething about...4What otherreasons couldthere befor it【答案】Activity1Useful expressionsfor askingformoreinformation andexplaining.2Its because...5Would youtell usmore about...

3...prove...Asking formoreinformationExplaining1/4/52/3Step6DiscussionActivity11【答案】Talk aboutthe investigationinto anotherscientific mystery.Possible visionThealiens area generalterm usedby humansto describeimaginary lifefrom otherplanets.Nowadays,thehuman beingshave notactually detectedwhether thereare aliensin universe,though quieta fewpeople saidthatthey witnessedalien visitthe earth.In thelast50years ofresearches,astronomers havenot foundany conclusiveevidence ofextraterrestriallife.Step7Language appreciation

1.There aremany mysteriesaboutdinosaursto whichwe longto findexplanations.［句式分析］为定语从句,其结构为“介词从句”用来“to whichwe longto findexplanations”to+which+修饰说明先行词其中介词与构成固定搭配意为mysteriesaboutdinosaurs explanationsexplanations tosth“对…的解释”；固定短语意为“渴望做某事”longtodosth［尝试翻译］有许多关于恐龙的谜团，我们渴望找到解释

2.Interestingly,it isthe backpart ofthebrainthat isinvolvedwithourvision.［句式分析］本句为强调句句式被强调部分句子的其余部分”,本语境为主语句子“Its++that+“Its++that+的其余部分”，句中短语意为“与…关联，涉及到be involvedwith［尝试翻译］有趣的是，大脑的后部与我们的视觉有关。