届一轮复习北师大版选修八Unit 23Conflict单元学案14页word解析版.docx

届一轮复习北师大版选修八Unit 23Conflict单元学案14页word解析版.docx

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届一轮复习北师大版选修八Unit23Conflict单元学案14页word解析版

2019届一轮复习北师大版选修八Unit23Conflict单元学案

Ⅰ.阅读理解

A

（2018·黑龙江哈尔滨六中一模）

Withfuelcostsrisingandairlinesfindingmorefeestoimpose（强加，征税）ontravelerseveryday，airfareisn'tgettinganycheaper.Sinceyoucan'tdrivetoallyourdreamdestinations，flyingistheonlywaytogosometimesand，undeniably，thefastest.Luckily，thereareplentyofwaystofindthemostaffordablefaresandalsoavoidpayingasmanyextrachargesaspossiblewhenyouplanahead.

Getthebestfare.AirlinesputouttheirfaresalesonTuesdaymorning，makingthisdaythebestdaytobookaflightforless.

Flyduringtheleastpopulartimes.Tuesday，WednesdayandSaturdayaretheslowestdaystofly，whichmeanscheaperdealsthantherestoftheweek.Youcanalsofindreducedratesonearlymorningflights，sincemanypeopledon'tliketogetupbeforethesuntogettotheairport.Earlierboardingtimescanalsoconsiderablycutdownyourchancesofgettingbumpedonanoverbookedflightordelayedbecauseofotherdelayedflightsormechanicalissues.

Chooseyourseatlater.Someairlineschargeyoutopickyourseatwhenyoubookonline，addingevenmoretothebottomlineofyourticketcost.Ifyoushowupearlyonyourtravelday，youcanstillgetsuitableseats.Someofthebestseatsgetheldbackuntilflightday，unlessothersarewillingtopayextraforthemaheadoftime，soyoustillhavethechanceatoneofthose.

Flyonholidays.Youalreadyknowthatsummeristhemostexpensivetimetofly，andeventhoughmostothertimesaremoreaffordable，thedayssurroundingholidayscanbecrazy.Savebigifyou'rewillingtotravelonmajorholidays，suchasThanksgivingandChristmas.

Don'twaituntilthelastminutetobook.Manytravelersdon'tknowthatthere'sasweetspotforbookingandgettingthebestpriceonyourtickets.Booktooearlyortoolateandyoucouldenduppayingmorethanyouneedto.Thebesttimetobookisbetweenthreemonthsandsixweeksfromwhenyouwanttotravel.

【语篇解读】　本文主要讲述了在燃油费和机场建设费日益增长的今天，乘坐飞机会是非常昂贵的。

本文告诉了读者几点减少费用，利用飞机便宜出行的建议。

1．Thepassageisintendedto________.

A．informushowtobookacheaperticket

B．tellushowtochoosetheseatandtimeforaflight

C．persuadeusintotravellingbyair

D．informusofsomebestwaystosavemoneyonaflight

解析：

D　推理题。

根据文章内容，主要讲述了在燃油费和机场建设费日益增长的今天，乘坐飞机会是非常昂贵的。

本文告诉了读者几点减少费用，利用飞机便宜出行的建议。

结合Luckily，thereareplentyofwaystofindthemostaffordablefaresandalsoavoidpayingasmanyextrachargesaspossiblewhenyouplanahead.目的在于给读者相关的建议，故选D。

2．Whichofthefollowingstatementsisnottrue?

A．Airlinetravelersaresupposedtopaymorefortherisingfuelcosts.

B．Earlymorningflightwillhelpavoidsomebumpsanddelays.

C．Youcanonlybookyourseatonlinebeforeoronyourflightday.

D．Bookingtooearlymaycostyoumoremoneyonyourtickets.

解析：

C　细节题。

根据文章内容Ifyoushowupearlyonyourtravelday,youcanstillgetsuitableseats.Someofthebestseatsgetheldbackuntilflightday，unlessothersarewillingtopayextraforthemaheadoftime，soyoustillhavethechanceatoneofthose.由此可知，并不是在你乘坐飞机的前一天或者当天才能在网上预订座位，故选C。

3．WhichisthebesttimetobooktheflightforOctober2nd?

A．May15th.　　　　　　　B．August15th.

C．June15th.D．September15th.

解析：

B　推理题。

根据文章内容Thebesttimetobookisbetweenthreemonthsandsixweeksfromwhenyouwanttotravel.预订机票的最后时机是你想要乘机的前3个月至6个星期前。

如果想要10月2号出行，结合4个选项，则最佳的订票时间应为8月15号。

故选B，其他时间要么过早要么过迟．

B

（2018·安徽皖南八校联考）

Ifyouwanttoslowaging,youmightwanttoeatless.Thisfindingisgoodnewsifyouwereamouse.Theresearchersstudiedmice,notpeople.

JohnPriceandotherresearchersstudiedtwogroupsofmice.Onegroupwasabletoeatasmuchasitwanted.Theresearcherslimitedwhatthemiceintheothergroupate.Theirdiethad35percentfewercaloriesthanthefirstgroupofmice.

Pricesaysthemicewiththedietrestrictionswere“moreenergeticandsufferedfewerdisease.”Theywerenotjustlivinglongerbutseemedtostayyoungerforalongerperiodoftime.

Theresearchersfoundthatfewercaloriesslowdownanaturalmechanismincellscalledribosomes.Priceexplainsthatribosomesareresponsibleformakingimportantproteinsinthecells.Butwithfewercalories,theyslowdown.Thisgivesthecellsmoretimetorepairthemselves.

Theresearcherssayribosomesusefrom10to20percentofthecell'senergytomakethoseproteins.Pricewrotethat“becauseofthis,itisimpracticaltodestroyanentireribosome”whenitstartstobreakdown.However,“repairingindividualpartsoftheribosomeonaregularbasisenablesribosomestocontinueproducinghighqualityproteinsforlongerthantheywouldotherwise.Thistopqualityproduction,inturn,keepscellsandtheentirebodyfunctioningwell.”

Pricesaid,“ribosomeisaverycomplexmachine,likeacar.”Theyneed“maintenancetoreplacethepartsthatwearoutthefastest.Whentires