Unit5WorkingtheLandLanguagepoints课件高中英语人教版选择性

Unit5Languagepointsof

UsinglanguageSubjectClause主语从句(1)Itmakesnodifference

yousupportmyplanornot.(2)

youdoshoulddonoharmtoothers.(3)Itissuggested

thework（should）bedonewithgreatcare.(4)

（谁将去接他）isnotdecided.(5)

（哪个班级会赢得这场足球赛）isnotclear.(6)

（他能否买到飞机票）doesn’tmattermuch.(7)

（我们将如何去那里）isaquestion.(8)

（你刚才告诉我的）wasreallyasurprise.(9)

（他什么时候出国）isbeingdiscussed.(10)

（他为什么哭）isnotclear.whetherthatWhateverWhowillpickhimupWhichclasswillwinthefootballmatchWhetherhecanbuytheplaneticketHowwewillgothereWhatyoutoldmejustnowWhenhewillgoabroadWhyhecries(1)

（一定的）weshallbelate.(2)

(明显的)thatthedrivercouldnotcontrolhiscar.(3)Isitpossiblethatthey

（come）tomorrow?(4)

（很显然）heistellingthetruth.(5)

(令她有点担心的是)herhairwasturninggrey.(6)

（使我震惊的是）methatPeterdidn’ttellanybodywherehewas.(7)

（都没有关系）whetherhelikesitornot.(8)

（结果是）wewerewrong.ItworriedherabitthatItturnedoutthatItwasobviouswillcomeItisclearthatItshockedmethatItdoesn’tmatterItiscertainthatUNIT5WORKINGTHELANDSectionCUsingLanguage&AssessingYourProgressChemicalVersus（VS）OrganicFarming化学耕作与有机耕作Chemicalpesticidesandartificialfertilisershavebeeninwidespreaduseinfarmingsincethemiddleofthe20thcentury.自二十世纪中叶以来，化学农药和人工肥料便广泛应用于耕作。

1.in/outof/use：〔机器、场所等〕不/在使用中

be

in

dailyuse被日常使用

Overtime,however,whatsomescientistshavefoundisthattheirlong-termusecansometimesharmboththelandandpeoples’health.然而，随着时间的推移，一些科学家发现，长期使用它们有时会危害土地和人类健康。

2.overtime:渐渐地，慢慢地gradually;随着时间的流逝

over在（整个）…期间I'vecometounderstandhimbetter

over

theyears.经过多年，

我现在对他有了更深刻的了解。Thisaffectsthecropsgrownonthelandand,inturn,theanimalsandhumanswhodigest

them.这会影响土里种植的作物，继而影响消化这些作物的人畜。

3.inturn

相应地;转而:asaresultofsomething

依次;轮流followingoneafteranotherinaparticularorder

inreturn(for)作为回报;作为回应

byturns

轮流；交替:

〔表现某些情感或特质〕

taketurns(doingsth./todosth./indoingsth.)依次；轮流1)Theoryisbasedonpracticeand

____________servespractice.2)Shelaughedandcried

_______________.她笑一阵又哭一阵。3)Hehelpsoutandexpectsnothing

___________.4)Thechildrencalledouttheirnames___________turn.5)Thisbookis，

turns，funnyandsad.6)Twodaysaftertheoperation，Dadtookaturn

theworse.inturnbyturnsinreturninbyfor情况恶化（注意：theworse）4.

digest

vt.＆vi.消化

vt.领会;领悟thinkover,understandn.[c]摘要;文摘:Reader’sDigest《读者文摘（美版）》Shereadeverything,

______________everyfragmentofnews.她什么都读，新闻中的任何只言片语都要一一揣摩。Somebooksaretobetasted,otherstobeswallowed,andsomefewtobechewedanddigested.书有可浅尝者，有可吞食者，少数则须咀嚼消化。——F.培根digestingInfact,somepesticideslikeDDThavebeenprohibitedinmostcountriesbecauseofthedamagetheycausetopeopleandtheenvironment.

事实上，由于对人类和环境有害，“滴滴涕”等农药在大多数国家已被禁用。Asforchemicalfertilisers,cropsgrownwiththemusuallygrowtoofasttoberichinnutrition.至于化学肥料，用其施肥的作物通常生长过快而营养不足。---asfor:usedtostarttalkingaboutsb/sth至于；关于regarding---berichin/with富含…的Hehadalife

richwith

blessings.他一生多福。Theymaylookbeautifulontheoutside,butinsidethereisusuallymorewaterthanessentialminerals,andtheyoftenhavelessflavouraswell.此类作物外表靓丽，而内里却经常是水分多于必需矿物质，并且往往口感较差。5.essential(to/for)adj.完全必要的;极其重要的important,

necessary

---学案p.95/2.1)Itisessential(that)ourpilots_____________________thebestpossibletraining我们的飞行员要受到最好的培训，这是必不可少的。2)Itisessentialthatyouaresurewhatyourgoalsare你必须明白自己的目标是什么。.—现代英语也有人用陈述语气。(should)begiven3)Itis

essential(forsb.)todosth.（某人）

做某事是完全必要的请（你）务必准时到达。It‘s

essential（foryou)toarrive

ontime.4)essentialsn.必需品;必不可少的东西

theessentials要点，要素:Shepackedafewessentialsandheadedfortheairport.她拿了一些生活必需品就直奔机场。Asanalternative,somefarmershaveswitchedtoorganicfarming,andmanycustomershaveturnedtoorganicfoodwhentheyshopatthelocalgrocery.作为一种选择，一些农户已经改用有机耕作，许多顾客在当地杂货店购物时也转而选择有机食品。6.alternativen.&adj.(学案P-3)（1）n.可供选择的事物havenoalternative/choice/optionbuttodo...别无选择，只好做某事

can’tchoosebuttodo...（2）adj.（仅用于名词前）可供替代的，可供选择的；非传统的alternative

energy替代性能源alternative

suggestions可供选择的建议Thepolice

（别无选择只好释放他）

withoutenoughevidence.

hadnoalternativebuttosetthemanfreeOrganicfarmersfocusonkeepingtheirsoilrichandfreeofdiseasethroughnaturalmeans.有机耕作的农民注重通过天然的方法保持土壤肥沃，没有病害。

7.(be)freeof/from免于；不遭受;没有freeofcharge=forfree免费地

free

ofworries无忧无虑Forinstance（forexample）,theymaygrowcornorwheatinafieldoneyear,andthengrowbeanstherethenext.例如，他们可能一年在田里种植玉米或小麦，第二年改种豆类。

8.instancen.[c]

例子;实例;事例(case)---学案p.96/4.instancewhere

instances______________________________________

遵守安全规章的例子wheresafetyregulationsareobservedWhy

differentcropsaregrownisbecause

theyputimportantmineralsbackintotheground,makingitreadyagainforthenextbatch

(一批)ofcrops.种植不同作物的原因，是为了把重要的矿物质重新放回土壤之中，让土壤为下一批作物(的种植)做好准备。(结果状语）Organicfarmersalsoplantdiversecropsthatusedifferentdepthsofsoiltohelpkeepitrich.有机耕作的农民也种植土壤深度要求不同的多样化作物，以保持土壤肥沃。9.depthn.

向下（或向里）的距离；深（度）；

thedepths最深处；深渊；极限to/atadepthof500meters

到/在500米的深度thedepthsoftheocean/countryside/forestetc

海洋深处/偏远的乡村/森林深处等:Thememorylieshiddenin

thedepthsofhermind。那段记忆隐藏在她的脑海深处。Shewas

inthedepthsofdespair.

她处于绝望的深渊。indepth

全面，深入，详细ametre/footindepth

一米/一英尺深Ihaven’tlookedatthereportindepthyet.

deeplyadv.很深地；深刻地

depth

n.深(度)

deepen

v.变深

adjdeephighwidelongstrongbroadn.

depthheightwidthlengthstrengthbreadthv.deepenheightenwidenlengthenstrengthenbroaden(1)Inthisexperimentthebravepersonhadspent130daysinacave,30feet

depth.(2)Itisnot

（long）oflife，butdepthoflifethatmatters.(3)Withinamomentortwo，itsbodywasdraggedswiftlybythekillersdowninto

（海的深处）.(4)Theyoungmandivedto

（深度）40feet.thedepthsoftheseainlengthadepthof

deep/deeplyadv.?deep可以用作副词，跟deeply在意义上没有多大的区别，作“深深的”解,但要注意：在具体或有形的意味上要用deep：godeepintothejungle2.在比喻的意味上要用deeply（=greatly）

“非常”

deeply+adj./adv./v-ed/介词短语;v.+

deeply

deeplygrateful非常感激/bedeep

in

thought；deeplyshocked大为震惊3.习惯用法：study/workdeepintothenightStillwatersrundeep.静水流深；木讷寡言者也许胸藏丘壑Forexample,peanutsgrowontheground'ssurface,butmanyothervegetablesputdowndeeproots.例如，花生长在土壤表层，而许多其他蔬菜则扎根于土壤深处。10.rootn.[c]根;根茎;根部;根源;

vt.使生根;使（某人）无法移动putdownroots(植物)生根;扎根〔某地〕;定居gettotherootof

theproblem找到问题的根源rootedtothespot/flooretc

〔震惊、惊讶或害怕得〕呆住不动;呆若木鸡，一动不动:She______________________,___________________她呆若木鸡地站着盯住他看。stoodrootedtothespot,staringathim.

What

keepsthemfromdoingsoisthefactthat（同位语从句）

chemicalfarmingservesthehighdemandforfoodaroundtheworld.他们不能如愿的原因是化学耕作满足了全世界对食物的高需求。11.servevt.对…有用；能满足…的需要

Howcanwebest_________________________________?我们怎样才最能满足后代子孙的需要？Hisoldbikehasservedhimwell.他那辆旧自行车对他很有用。servetheneedsoffuturegenerations

同位语从句(1)When

(消息传来)thewarbrokeout，hedecidedtoserveinthearmy.(2)Doyouhaveevidence

thistreatmentworks?(3)Theonlywaytosucceedatthehighestlevelistohavetotalbelief

youarebetterthananyoneelseonthesportsfield.(4)Iheard

（我们队赢得比赛的消息）.