2019版高考英语一轮基础习选题unit3inventorsandinventions含解析新人教版选修8

《2019版高考英语一轮基础习选题unit3inventorsandinventions含解析新人教版选修8》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、Unit3Inventorsandinventions李仕才一、阅读理解。Beesplayavitalroleintheworld.Unfortunately，beesaredyingbythesecond.Themainpurposeofbeesistomakehoney.Honey,shockingly，doesnotexistforhumanconsumption；itisessentialtotheinsects.Honeybeesstorehoneyintheirhives(蜂箱)inorderf

2、orthebeestohaveenergyfortheirflightmusclesandforheatingthehivesduringthewinterperiod.Theycollectpollen(花粉)whichsuppliesproteinforyoungbeestogrow.AccordingtoNationalHoneyBoard，theincreasedproductionandqualityofagriculturalcropsasaresultofhoneybeepollination

3、arevaluedatmorethan$14.6billionperyear.Theseinsectsareresponsibleforover70ofthefruitsandvegetablesweeattoday，includingapples，grapes，coffee,beans，andbroccoli.Soiftheyaresovaluabletoagriculture，whydotheykeepdyingoff？Akeysuspectseemstobepesticides(农药)．Honeybe

4、eswhoareexposedtopesticidesresultinthedamagetotheirneurological(神经系统的)functions,specificallymemoryorbehavior.Andthat'swhythemajorityofworkerbeesdisappearandleavebehindaqueen，plentyoffoodandafewnursebeestocarefortheremainingimmaturebeesandthequeen.Thereares

5、everalothercausesofthedeclineofbees，includingthedestructionofnaturalhabitats，likewoodlands，forests，andotherhabitatsforbees.Climatechangeisalsoafactorinthedeclineofthewildbeepopulation.Actually，thereareavarietyofmethodstohelpthebeepopulationgrow.Onewayistos

6、tartyourownorganicgardenbyplantingbeefriendlyplants.Pesticidesareusedinbothindustrialpracticesandeveninyourhome，soitisbesttofindorganicseedsandweedkillers.1．Whydohoneybeesstorehoneyintheirhives?A．Toprovideenoughhoneyforhumanstoconsume.B．Todrawproteinoutofh

7、oneyforyoungbees.C．Tohelpattractotherinsectsandmakehivesstronger.D．Tostrengthenbeemusclesandheathivesinwinter.2．Applesandbeansarementionedinthethirdparagraphtoshowthat________.A．beessupplyhumanbeingswithbasicfoodB．beesmainlyliveontheseagriculturalcropsC．be

8、esareofgreatimportancetofruitsandvegetablesD．beescanbringinmoremoneyforfarmerseveryyear3．Whatismostlikelytocausetheworkerbeestoleavetheirhivesbehind?A．Thelackoffood.B．Theabuseofpesticides.C．Thefightingamongbe