2017年6月大学英语四级考试阅读理解单项训练（1）思维导图

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2017年6月大学英语四级考试阅读理解单项训练（1）思维导图

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　　距离2017年6月大学英语四级考试还有不到一个半月的时间，已经报名的同学备考一定要抓紧，不要临时抱佛脚。新东方网英语四级频道为大家整理了英语四级阅读理解单项训练习题，每天一道题考试不担心。

树图思维导图提供 2017年6月大学英语四级考试阅读理解单项训练（1）在线思维导图免费制作，点击“编辑”按钮，可对 2017年6月大学英语四级考试阅读理解单项训练（1）进行在线思维导图编辑，本思维导图属于思维导图模板主题，文件编号是：5a7a1c9fb568fcbc37324bea216915b8

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2017年6月大学英语四级考试阅读理解单项训练（1）思维导图模板大纲

Thefoodweeatseemstohaveprofoundeffectsonourhealth.Althoughsciencehasmadeenormousstepsinmakingfoodmorefittoeat,ithas,atthesametime,mademanyfoodsunfittoeat.Someresearchhasshownthatperhapseightypercentofallhumanillnessesarerelatedtodietandfortypercentofcancerisrelatedtothedietaswell,especiallycancerofthecolon.Differentculturesaremorelikelytocausecertaindifferentillnessesbecauseofthefoodthatischaracteristicinthesecultures.Thatfoodisrelatedtoillnessisntoanewdiscovery.In1945,about35yearsago,governmentresearchersrealizedthatnitrates,commonlyusedtopreservecolorinmeats,andotherfoodadditivies,causedcancer.Yet,thesecarcinogenicadditivesremaininourfood,anditbecomesmoredifficultallthetimetoknowwhichthingsonthepackaginglabelsofprocessedfoodarehelpfulorharmful.Theadditiveswhichweeatarenotallsodirect.Farmersoftengivepenicillintobeefandlivinganimals,andbecauseofthis,penicillinhasbeenfoundinthemilkoftreatedcow.Sometimessimilardrugsaregiventoanimalsnotformedicalpurposes,butforfinancialreasons.Thefarmersaresimplytryingtofattentheanimalsinordertoobtainahigherpriceonthemarket.AlthoughtheFoodandDrugAdministration(FDA)hastriedrepeatedlytocontroltheseprocedures,thepracticescontinue.

1.Whatisthebestpossibletitleofthepassage?

a.DrugandFood

b.CancerandHealth

c.FoodandHealth

d.HealthandDrug

2.WhichofthefollowingstatementsisNOTture?

a.Drugsarealwaysgiventoanimalsformedicalreasons

b.Someoftheadditivesinourfoodareaddedtothefooditselfandsomearegiventothelivinganimals

c.Researchershaveknownaboutthepotentialdangersoffoodadditivesforoverthirty-fiveyears.

d.Foodmaycausefortypercentofcancerinworld.

3.Howhassciencedonesomethingharmfultomankind?

a.Becauseofscience,diseasescausedbypollutedfoodhavenbeenvirtuallyeliminated.

b.Ithascausedalackofinformationconcerningthevalueoffood.

c.Becauseoftheapplicationofscience,somepotentiallyharmfulsubstanceshavebeenaddedtofood.

d.Thescientistshavepreservedthecolorofmeats,butnotofvegetables.

4.Whatarenitratesusedfor?

a.Theypreserveflavorinpackagedfoods.

b.Theypreservethecolorofmeats.

c.Theyaretheobjectsofresearch.

d.Theycausetheanimalstobecomefatter.

5.Theword'carcinogenic'mostnearlymeans'_____'.

a.trouble-making

b.color-retaining

c.money-making

d.cancer-causing

答案：cacbd

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