高二英语译林版2020选择性必修第一册同步课件Unit1Period1单元知识详解

Unit1FoodmattersPeriod1单元知识详解译林版英语选择性必修一1.combination

n.结合体,联合体;联合,混合【知识微练】

单句语法填空①(2022·全国甲卷)It’saprettyhard____________

(combine)tobeat.②Afewreasonscombined________(ruin)ourplan.

③Thenewmodernhotelcombinescomfort__________

convenience.

完成句子④Wearestudyinganewproduct___________________othercompanies.

我们正在和其他公司一起研究新产品。combinationtoruin

and/withincombinationwith

【重点知识】【知识拓展】(1)acombinationofAandB

A与B的结合(2)incombinationwith

与……结合;与……联合(3)combine...with/and....

把……和……结合(4)combinetodosth.

联合做某事2.vary

vi.(根据情况)变化,变更;相异,不同vt.

变更,改变【知识微练】

单句语法填空①Oceancolour_______(vary)fromgreentoblue,dependingonthetypeandconcentrationofphytoplankton(浮游植物).②Acompanymightwanttodevelopa________(vary)ofspacesinanofficesostaffcanfindprivacyifneeded,butalsoworkinopenareasforcreativethinking.③Nomatterwhatyouliketodo,thereisawaytogetinvolvedin________(vary)activitiesonEarthDay.完成句子④Stoppingdistancesforcars__________thespeedtheyaretravellingat.

汽车的停车距离随着它们行驶的速度而变化。variesvarietyvariousvarywith

【知识拓展】(1)varyin...

在……方面不同varyfrom...to...

从……变化到……varyfrompersontoperson

因人而异varywith...

随……而变化varybetween...and... 从……到……不等(2)various

adj.各种不同的,多种多样的invariousways

以不同方式(3)variety

n.(同一事物的)不同种类,多种式样avarietyof/varietiesof

各种各样的avarietyof,varietiesof后接可数名词复数作主语时,谓语动词用复数形式;后接不可数名词作主语时,谓语动词用单数形式。thevarietyof+复数名词,意为“……的品种”,作主语时,谓语动词用单数形式。3.essential

adj.必不可少的;本质的,基本的【知识微练】

单句语法填空①(2022·北京高考)Theresult—anapproachknownassystemsthinking—isnowseenas_________

(essence)inmeetingglobalchallenges.②___

essence,afirmbeliefisthekeytosuccessofrevolution.③Itisessentialthateverystudent______________________(guarantee)adequateamountofsleepdespitetheiracademicburdens.

完成句子④Thereare____________________________ofsolvingthisdifficultproblem.

有三个解决这个难题的根本不同的方法。essentialIn(should)beguaranteed

threeessentiallydifferentways

【知识拓展】(1)beessentialto/for

对……来说是极其重要的/必不可少的(2)itisessentialtodosth./that...(+should)+do

……是极其重要的(3)essentially

adv.本质上;根本上;基本上(4)essence

n.本质;实质;精髓inessence

从本质上讲4.relieve

vt.

解除,减轻;缓和,缓解【知识微练】

单句语法填空①TheUNsetuptheWorldFoodProgramme,oneofwhosepurposesis_________(relieve)worldwidestarvation.

②Shewas________(relieve)aftersheheardthatherdaughterwassafe.③Toourgreat______(relieve),Dadturneddowntheidea.完成句子④____________,agoodsleepcan__________________andalso______________ofworking.

使我欣慰的是,良好的睡眠可以减轻我的焦虑,也减轻了我工作的负担。torelieverelievedreliefTomyreliefrelievemyanxiety

relievemyself

【知识拓展】(1)relieveone’sanxiety

减轻某人的焦虑relievesb.ofsth. 帮助……减轻负担(2)relief

n.

宽慰toone’srelief

使某人欣慰的是inrelief

如释重负;松了口气Whatarelief!

可松口气了!(3)relieved

adj.宽心的;宽慰的5.expand

vt.&vi.

增加,扩大;扩展,发展(业务);详谈,详述【知识微练】

单句语法填空①Wehaveplanstoexpand_____

theU.S.market.②Therapid__________(expand)ofcitiescancausesocialandeconomicproblems.③Shementionedafewideas,butshedidn’texpand_________

them.完成句子④Thehotelwantsto__________________

byaddingaswimmingpool.

该酒店想要通过增加一个游泳池来扩大其业务。intoexpansionon/uponexpanditsbusiness【知识拓展】(1)expandon/uponsth.

详述某事expandinto

扩大(2)expansion

n.扩大expansionof

……的扩大/增加6.estimate

vt.

估计,估价n.估计;估计的成本【知识微练】

单句语法填空①Estimates____

thepublicserviceswillbelaidbeforeyou.②Itis__________(estimate)thatathirdofitsvocabularyisborrowed.③____________(estimate)ofourtotalworldsalesarearound50million.完成句子④Thepopulationofourcityis____________2.5million.

我们市人口约250万。forestimatedEstimationsestimatedat

【知识拓展】(1)estimatefor...

对……估价give/makeanestimate

做估计exceedanestimate

超出预算aroughestimate 粗略估算/估计(2)estimatesth.at 估计某物有beestimatedto... 据估计(3)itisestimatedthat

据估计(4)estimationof

……的估计量7.impress

vt.&

vi.使钦佩,给……留下深刻印象;使意识到【知识微练】

单句语法填空①What__________

(impress)himmostinthevillagewasthebeautifulscenery.②Whatan___________

(impress)performancetheygaveus!③Whattheyoungmansaidatthemeetingleftadeep___________

(impress)onme.完成句子④________________________________,themanagerdecidedtopromoteJack.

对他的工作效率印象深刻,经理决定提拔杰克。impressedimpressiveimpressionImpressedbyhisworkingefficiency【知识拓展】(1)impresssb.with...

给某人留下深刻印象beimpressedwith/by

对……印象深刻(2)impresssth.onsb.

使某人铭记;给某人留下深刻印象(3)Whatimpresses/impressedmemostis/was...

给我印象最深的是(4)leave/makeanimpressiononsb.

给某人留下印象(5)impressive

adj.令人赞叹的8.plain

adj.朴素的,简单的;清楚的n.平原【知识微练】

单句语法填空①Everyfootstepcouldbe_______(plain)heard.②Theaircraftwasabletoflyovertheendlesswhite_______(plain)withoutdifficulty.完成句子③Thedocument,written_______________,tellsyouaboutthenewpolicy.

该文件以简单的英语写成,告诉您有关新政策的信息。plainlyplainsinplainEnglish【知识拓展】(1)Itisplain(that)

显然……(2)inplainsight

显而易见(3)tobeplainwithyou

坦白地说9.appetite

n.食欲,胃口,强烈欲望【知识微练】

单句语法填空①Researchsuggestswarmcolorsfuelour_________(appetite).②Hisappetite____

foodhadincreased.③Symptomsincludefeverandloss___

appetite.完成句子④Thelittlegirlhasanamazing____________knowledge,andsheworkshardonherstudy.

这个小女孩求知欲强,学习刻苦。appetitesforofappetitefor

【知识拓展】(1)fuel/increaseone’sappetite

刺激某人的食欲(2)loseappetite

失去胃口(3)lossofappetite

食欲不振(4)appetiteforsth.

对……的欲望(5)haveagoodappetite

胃口好(6)haveanappetitefor

渴望……10.mood

n.心情,情绪;精神状态;语气;气氛,氛围【知识微练】

单句语法填空①Itturnsoutthatjustlookingatgreen,growingthingscanreducestress,lowerbloodpressure,andputpeople_____

abettermood.②Iwasjusttootiredandnot___

themood.③________(mood)andimpatient,burdenedbyfearsthatresultedfrommyearlyyearsofneed,Iwasnotaneasychildtolove.完成句子④Alltheteammemberswere__________________aftertheywonthechampionship.

夺冠后,所有队员都心情愉悦。intoinMoodyinacheerfulmood

【知识拓展】(1)beinagoodmood

心情好beinabad/foulmood

心情糟糕putsb.in/intoagood/badmood

使某人心情好/不好be/feelinthemoodforsth./todosth.

有做某事的心情(2)moody

adj.

闷闷不乐的;喜怒无常的11.throw

oneself

into

投身于,热衷于【知识微练】

单句语法填空①Theyoungladythrewherself_____

voluntarywork.②Takewhatyoureallyneedandthrowtherest______.③Thefirefighterthrew____

hiscoatassoonashearrived.完成句子④Hefeelslike_____________whathehaseatenallthetime.

他一直想把吃的东西吐出来。intoawayoffthrowingup

【知识拓展】(1)throwaway

扔掉;浪费(2)throwoff

匆匆脱掉(3)throwup

呕吐(4)throwcoldwateron

给……泼冷水(5)throwshadowover 给……投下阴影12.cry

out

for

迫切需要【知识微练】

单句语法填空①Thecompanyiscryingout____

freshnewtalent.②Ifelttooterrifiedtoevencry____

forhelp.③Neitherparentsnorpoliticiansare_______(cry)outforradicalreformofthesystem.foroutcrying【知识拓展】(1)bepressedfor

迫切需要(2)cryingneeds

迫切的需要(3)inneedof

需要(4)cryout

大声呼喊;大声抱怨(5)cryoff

打退堂鼓(6)cryoverspiltmilk 覆水难收13.We

will

put

the

potatoes

in

the

pot

first

in

order

that

they

will

be

cooked

quickly.

我们先把土豆放进锅里,以便煮得快些。【知识微练】

单句语法填空①Theygotupearlyinorder_____

theycouldattendtheopeningceremony.②Bothsidesmetinorder__________(resolve)theirdifferences.

thattoresolve

句型剖析(1)目的状语从句可以由inorderthat,sothat,incasethat(以防),forfearthat(唯恐)等短语引导。(2)若主句和从句主语一致时,可以用soasto或inorderto将其转换为简单句。(3)为了加强语气,有时将inordertodosth.置于句首。14.Whenever

I

feel

lonely,I

have

a

secret

recipe

that

never

fails:rice,milk

and

sugar,cooked

low

and

slow.每当我感到孤独时,我都会有一个永远不会失败的秘方:大米,牛奶和糖用小火慢煮。【知识微练】

完成句子①Toshowourrespect,weusuallyhavetotakeourglovesoff,_______________________(不管是谁)wearetoshakehandswith.

②_______________________________(不管你去哪里),youshouldnotleavebehindanytrashhereandthere.

whoever/nomatterwho

Wherever/Nomatterwhereyougo句型剖析(1)“疑问词-ever”结构引导让步状语从句,表示“无论……”;可与“nomatter+疑问