牛津六年级unit 10Word下载.docx
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andtheyhelppreventnaturaldisasters②.However,inmanypartsoftheworld,mandoesn’trealizethatthethirdoftheseservices③isthemostimportant.Inordertomakemoneyfromtrees,hehascutthemdowninlargenumbers,andonlyfindsthatwithoutthemhehaslostthebestfriendsatlast.Andbesides,heisusuallytoocarelesstoplantandlookafternew,youngtrees.Sotheforestsdisappear④slowly.
Thisdoesnotonlymeanthatmanwillhavefewertrees.Theresultsareevenmoreserious:
forwheretherearetrees,therootsofthemcanpreventsoilfrombeingwashedawayeasilywhenitrains;
butwheretherearenotrees,therainfallsonhardgroundandflowsaway,andthiscancausefloodsandcarryawaytherichtop-soil.Whenallthetop-soilisgone,nothingremains⑤butsands.
Twothousandyearsagoarichandpowerful⑥countrycutdownitstreestobuildwarships.Someyearslater,itbeattheenemyandsetuptheempire⑦.Butwithouttrees,itssoilbecamepooranditgrewweak.Whentheempirefellintopieces,peopleinthecountryfoundthemselvesinthefloods.
B
Tomisafamouswriternow.Buthesaidhewasnotagoodstudentwhenhewasyoung.Hewasoftenlateforclassanddidn’tlikedoinghishomework.Sometimeshesleptinclasswhiletheteacherwasteaching.Hedidn’tunderstandmuch,buthealwaysthoughtheunderstoodeverything.Onedaytheteacheraskedthestudentsaquestion,“WhenMikewastenyearsold,hisbrotherwastwenty.NowMikeisfifteenyearsoldandhowoldishisbrother?
”Tomsaid,“That’seasy.HisbrotheristwiceasoldasMike,soheisthirtynow.”
Anothertime,theteacherinascienceclassasked,“Whenitthunders（打雷）,whydowealwaysseethelightbeforewehearthesound?
”
“But,sir,”saidTomquickly,“don’tyouknowoureyesareinfrontofourears?
Answerthequestions.
1.What’sTomnow?
________________________________
2.Washeagoodstudentwhenhewasyoung?
3.IsMikeTom’sbrother?
4.HowoldisMike’sbrotherwhenheisfifteen?
5.WillTom’steacherbepleasedorangryafterhearingtheanswer?
________________________________
Choosethewordsorexpressionstocompletethepassage.
HaveyoueverplantedafewtreesonTreePlantingDay?
Eachyear,millionsofpeople,both1,plantalotoftrees.Butthismaynotbethebestwaytomakeyourhomeagreenplace.
LastweekwevisitedaparkinHebei.Wewere2tofindmostofthetreeshadbeenburned.Theworkerstoldusthatthetrees
3soonaftertheywereplantedbecausetheyweren’twateredwellenough.Soworkersburnedthemandcleanedtheplacefor4treestobeplantedthisyear.Onacardfoundinoneofthedeadtrees,astudentwrote,“Ihopethistreewillgrowupwithmeto5thebackbone（栋梁）ofourcountry.”Theworkerssaidthatthesurvival（存活）ofthetreeswasreallymoreimportantthan6treeswereplanted.
SomepeopleinBeijingnowhaveanewideathattheycandonatesomemoneyandletprofessionals（专业人士）plantand7thetrees.
（）1.A.studentsandteachers
B.oldandyoung
C.boysandgirls
D.motherandfather
（）2.A.pleasedB.happy
C.interestingD.surprised
（）3.A.diedB.grew
C.boughtD.planted
（）4.A.fewB.oldC.newD.dead
（）5.A.needB.holdC.plantD.be
（）6.A.howmanyB.when
C.howsoonD.why
（）7.A.takeoutB.takedown
C.takeupD.takecareof
Manyyearsago,therewerelotsoftreesontheEarth,becausesummerwentonallyearround.AforestcoveredtheEarthlikeagreencarpet.Whatwastheforestlike?
Itisnotdifficulttofindoutbecausepartsofthatancient（古老的）foreststillstand.Itisknownastherainforest.Thereeveninfineweather,waterfallsindropsthroughtheleaves.Becausethetreesaretoothickfortheraintofalldownsoon.
Thelargestoftoday’srainforestisinSouthAmerica.Itcoversaboutamillionsquaremiles.Allthetreesareverytall.Theyoungtreesareupto60feethigh,butitisnoteasyforsometogrowtaller,becauseverylittlesunlightgetstothem.
Thegrown-uptreesareabout60to100feethigh.Someareeventaller.Thetallesttreescanbe200ormorefeethigh.
Inthisforestoftalltrees,notonlyhasplentyofotherplantsbutalsohaslotsofanimals.Atdifferentheightlivedifferentanimals.Bythenoisestheymakeyouknowtheyarethere.
Choosethebestanswer.
（）1.Millionsofyearsago,therewerelotsoftrees,becausetheweatherwas________.
A.fineB.warmC.coolD.cold
（）2.—Whyisitnoteasyforsomeyoungtreesto
growtallerintherainforests?
—Because________.
A.thereislotsofrain
B.theweatherwasbad
C.thesoilwaspoor
D.theycangetverylittlesunlight
（）3.Thetallesttreescangrowupto________metreshigh.
A.below60B.over60
C.over200D.below200
（）4.—Whydoeswaterfallindropsinfine
weatherthroughtheleaves?
A.itstillrainsinfineweather
B.thetreesgiveoutwaterallthetime
C.thetreesaretoothickfortheraintofalldownsoon
D.itisaforestmakingrain
（）5.Whatisthebesttitle（标题）forthepassage?
A.PlantingTreesontheEarth
B.TheOldestTreesontheEarth
C.WhyDotheRainForestsGrowSoTall
D.TheRainForestinSouthAmerica
C
Howtoplanttrees
Longlongago,thereweremanytreesonthemountains.Inordertobuildhousesandgrowcrops,peoplecutdowntoomanytrees.Soonthegreenhillschangedintowasteland.森林是我们人类的朋友，它们的作用是不容忽视的。
本期写作主题是：
如何植树。
写作要求：
树木可以贮存大量的水分，树木可以防风固土。
请以“Howtoplanttrees”为题，写一篇６0词左右的短文。
写作分析：
Writeapassageabouthowtodo...之类的文章，是说明文的范畴。
在写作时要按照一定的顺序说明，注意表达要清晰，层次要分明。
注意步骤的先后次序，特别要灵活使用First...（首先……），Next...（接下来……），Then...（然后……），Afterthat...（之后……），Finally（最后……）等连接词。
有时也用first,second,third,fourth,fifth等序数词表达顺序。
写作步骤：
描写“howtodo...”之类的文章以解说和描述为主要表达方式，以简明的文字说明事物的构成和做工次序等，它不带有任何个人感情色彩，不需要生动地描写细节和场景，纯粹是客观的阐述。
写作时理顺植树的步骤：
先挖坑，坑不要太深（First,digaholelargeenoughforthetree,buttheholeshouldnotbetoodeep.）；
然后将树放进坑里，用一个长的、结实的棍靠着树，确保树可以直着生长（Second,putthetreeintheholeandknockalong,strongstickintotheearthnexttothetree.Makesurethatitisstraight）等。
写作要求是层次分明，语言简练、用词准确。
在使用的句式上多用祈使句，在时态上多使用一般现在时，用于强调客观事实。
习作参考:
Howtoplanttrees
Thetreesareveryimportanttohumanbeings,butnoteverybodyknowshowtoplantthem.Springiscoming,let’splantmoretrees.NowIwanttotellyouhowtoplanttrees.
First,digaholelargeenoughforthetree,buttheholeshouldnotbetoodeep.
Second,putthetreeintheholeandknockalong,strongstickintotheearthnexttothetree.Makesurethatitisstraight.
Third,puttheearthbackintheholeagainandthenpushitdownhardwithyourfootseveraltimes.Tiethetreetothetopofthesticktokeepitstraight.
Finally,wateritwell.Becarefulthatyoushouldwatertheyoungtreesasoftenaspossible.
Lightandshadow
Lightandshadowareclosefriends.Theyusuallygotogether.Ourpeoplereceivelighteveryday.Atthesametime,weproduceshadow.
Lightcannotshinethroughyou.Yourbodystopsitfrompassing.Thereisadarkspotonthegroundnexttoyou.Thelightcannotreachthedarkspot.Thisisyourshadow.
Atnoonthesunshinesoveryourhead.Yourbodystopsverylittlelightfromreachingtheground.Soyourshadowisquiteshort.
Butinearlymorningorlateafternoonthesunislowinthesky.Itslightshinesyourbody,andthenyourshadowisquitelong.Yourbodykeepsalotoflightfromreachingtheground.
Welovelight,especially（尤其）sunlight.Withoutsunlight,lifeontheEarthisimpossible.Mostofusliketostandintheshadowofatreeinsummer.Butsomepeopleareafraidoftheirownshadowatnight.Theydonotwanttowalkinadarkstreet.Theydonotwanttoseetheshadow,either.Butstilllightandshadowusuallygotogether.
（）1.Thesentence“Lightandshadowareclosefriends.”means________.
A.theshadowproduceslight
B.thelightusuallyfollowstheshadow
C.theyusuallygetonwellwitheachother
D.whenwegetlight,wecangetshadow.Theyarealwaystogether
（）2.Lightcannotshinethroughyoubecause________.
A.itistooweak
B.yourbodystopsitfromtravellingon
C.yourbodyistallandstrong
D.thereisadarkspotonthegroundnexttoyou
（）3.Yourbody’sshadowislongwhen________.
A.thesunislowintheskyinthemorningorlateafternoon
B.thesunisoveryourhead
C.thesunlightisverystrongatnoon
D.yourbodystopsverylittlelightreachingtheground
（）4.Itis______intheshadowofatreeinsummer,somanypeoplelik
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