【课件】Unit+4Discovering+Useful+Structures+课件人教版（2019）必修第三册

DiscoveringUsefulStructuresUnit04SpaceExploration新人教必修三DiscoveringUsefulStructuresInfinitivesastheattributeandtheadverbialIMPORTAINTPOINTPart1Self-studyLookingupatthestars,peoplehavealwayswantedtolearnmoreaboutspace,andscientistsworkhardtofindanswers.On12April1962,YuriGagarinbecamethefirstpersonintheworldtogointospace.Theymakevehiclestocarry

bravepeopleintospace

tofindout

thesecretsoftheuniverse.

objectadverbialattributeLookatthefollowingsentencesandfindoutthefunctionsoftheitalicizedinfinitives.Myambitionis

toworkforafirmthatdevelopscomputersoftwarewhenIgrowup.Todoexerciseisbeneficialtoourhealth.I’llleavehim

tosolvetheproblembyhimself.

adverbialpredicativesubjectobjectcomplementLookatthefollowingsentencesandfindoutthefunctionsoftheitalicizedinfinitives.Chinabecamethe

thirdcountryintheworldtoindependentlysend

humansintospacein2003.Sheimmediatelybecamethefirstwoman

evertobehiredasaresidentphysicianintheOB-GYNdepartmentofthePUMCHospital.Heisalways

thefirsttoarriveattheschoolandthelasttoleave

theschool.名词前有first,last,next,only等词以及最高级修饰时,其后要用动词不定式作定语infinitivesasadverbial4.However,somescientistsweredeterminedtohelphumansrealizetheirdream

toexplorespace.5.Thesedisastersmadeeveryonesadanddisappointed,butthedesiretoexplore

theuniverseneverdied.6.Theabilitytoexpressanideaisasimportantastheideaitself.7.Wemusthavethecouragetoface

thechallenge.8.Incollege,therearesomanygoodchancestomeet

yourexpectations.抽象名词attempt,ability,chance,desire,courage,wish,determination,decision,plan,promise,time,way等后面常用不定式作后置定语infinitivesasadverbial1.There’snothingtoworry

about.2.Ihavesomethingimportanttodealwith.不定代词something,nothing等后面常用不定式作后置定语不定式与被修饰的词有动宾关系，且句子中有该不定式的逻辑主语时，该不定式通常用主动形式表示被动意义；若不定式的动词是不及物动词，则须加上相应的介词。4.Heisanicepersontoworkwith.3.Ihavealotofworktodo.infinitivesasadverbialIMPORTAINTPOINTPart2Exercise(1)OurEnglishteacherhasmanyways_____________(make)herclassinteresting.(2)Hehasalotofwork___________(do)everyweekend.(3)Theyarelookingforaroom______________(live).(4)Ihavenochance__________(go)sightseeingwithsomuchworktodo.(5)Theairport____________________(complete)nextyearwillhelppromotetourisminthisarea.

tomaketodotoliveintogotobecompleted3.Youmustbeintelligentenoughtoget

arelatedcollegedegree.1.ChinahassentChang’e4toexplorethesurfaceofthefarsideofthemoontomakemeasurementsandobservations.2.Asweallknow,anastronautneedstobehealthyandcalminordertoworkinspace.不定式作目的状语=inorderto/soasto(soasto不能放于句首)4.Thewholeprocessistoocomplicatedtoexplaininafewwords.不定式作结果状语infinitivesasadverbial5.Hehurriedtotheschool,only

tofindthatitwasSunday.onlytodo表示出乎意料的结果6.Hewassurprised

toseeusinthestreetofLondon.8.Helaughedtohearthenews.不定式作原因状语7.

Wewere

astonishedtofind

thetemplestillinitsoriginalcondition.infinitivesasadverbialHecame_____________(show)mehisnewsciencebook.Thedoctorsarebusydoingwhattheycan_____________(save)thedyingman.Theoldmanwastooangry_____________(say)aword.HehurriedtothestationtoseeTomoff,only__________(find)hehadalreadyleft.Wearedelighted___________(know)thatyou’regoingtovisitusnextmonth.toshowtosavetosaytofindtoknowinfinitivesasadverbialExercise:1.Themeetingtobeheldtomorrowisofgreatimportance.2.I’mverysorrytohavekeptyouwaitingforme.3.Thelittleboypretendedtobereadingthebookswhenhisteacherenteredtheclassroom.4.Heworkedhardinordernottofailintheexamagain.tobedone:不定式的被动形式tohavedone:表示动作发生在谓语动作之前tobedoing:表示动作正在进行nottodo:不定式的否定形式IMPORTAINTPOINTPart3PracticeSendingpeopletootherplanetsorevenbeyondthesolarsystemisnotaneasygoal_____________(achieve).

One

of

the

problemsisthatthetripwouldtakeaverylongtime.Forexample,____________(use)currenttechnology,itwouldtakeovertwoyears___________(get)totheclosestplanet,Mars,andback.Althoughlightisthefastestthing_____________(know)intheuniverse,itcouldtakemorethanfouryearstoreachtheneareststarsystem.toachieveusingtogetknownCompletethepassagewiththecorrectformsoftheverbsinbrackets.Willscientistsfigureoutaway_____________(store)sufficientfoodandwaterforthelongjourney?Isitpossibletotravelfasterthanlight?Nooneknowstheansweryet.However,spacescientistsnevergiveup.Theyareexperimentingwithgrowingcropsinspacesoas____________(help)astronautsgetenoughfoodonlongerjourneysthroughspace.tostoretohelpCompletethepassagewiththecorrectformsoftheverbsinbrackets.1.In2003,YuriMalenchenkobecamethefirstpersonwhogotmarriedinspace.

=In2003,YuriMalenchenkobecamethefirstperson

____________________________.2.Inspace,astronautscollectalldirtywatersothatitcanberecycledforlateruse.=Inspace,astronautscollectalldirtywater__________________________________________________.togetmarriedinspaceto/inorderto/soastorecycleitforlateruseRewritethesentencesusinginfinitivesor“inorderto/soasto+do”.Changetheitalicizedpartsaccordingly.3.Mankindhasalwaysbeencuriousabouttheuniverseandmanypeoplehavedreamedthatonedaytheywouldflyintospace.

=Mankindhasalwaysbeencuriousabouttheuniverseandmanypeoplehave_______________________.dreamedtoflyintospaceRewritethesentencesusinginfinitivesor“inorderto/soasto+do”.Changetheitalicizedpartsaccordingly.4.Astronauts’bonesandmusclescangetveryweakinspaceduetothelackofgravity,sotheyneedtoexerciseeveryday,whichwillhelpthemstayhealthy.=Astronauts’bonesandmusclescangetveryweakinspaceduetothelackofgravity,sotheyneedtoexerciseeveryday__________________________________.to/inorderto/soastostayhealthyRewritethesentencesusinginfinitivesor“inorderto/soasto+do”.Changetheitaliciz