七选五、短文改错(含答案)

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1、七选五、短文改错随堂练（含答案）I阅读七选五：RecentlysomeAmericanscientistshavegivenausefulpieceofadvicetopeopleinindustrializednations．Theysaypeopleshouldeatmoreofthesamekindoffoodeatenbyhumanslivingmorethan10,000yearsago．1Thescientistssaythatthehumanlifehaschangedgreatly．Ourbodieshavenotbeenabletodeal

2、withthesechangesinlifestyleandthishadledtonewkindsofsicknesses．2Sotheyarecalled"diseasesofcivilization"．Manycancersanddiseasesofthebloodsystemareexamplesofsuchdiseases.ScientistsnotedthatpeopleinboththeOldStoneAgeandtheNewStoneAgeenjoyedverylittlealcoholortobacco,probablynone．3Howe

3、ver,achangeinfoodisoneofthemaindifferencesbetweenlifeinancienttimesandthatoftoday.StoneAgepeoplehuntedwildanimalsfortheirmeat,whichhadmuchlessfatthandomesticones．Theyatealotoffreshwildvegetablesandfruits．Theydidnothavemilkoranyotherdairyproducts,andtheymadeverylittleuseofgrains．4We

4、eatsixtimesmoresaltthanourancestors．Weeatmoresugar．WeeattwiceasmuchfatbutonlyonethirdasmuchproteinandmuchlessvitaminC.5Butscientistssaythatwewouldbemuchhealthierifweeatmuchthesamewaytheancientpeopledid,cuttingtheamountoffatty,saltyandsweetfood.A．StoneAgepeoplelivedasimplelife.B．But

5、today,weenjoyeatingalotofthese.C．Inthatcase,theywouldlivemuchhealthier.D．Ancientpeoplealsogotlotsofphysicalexercise.E．Thesenewsicknesseswerenotknowninancienttimes.F．Peopletodayprobablydon'twanttolivelikeourancestors.G．Modernpeopleusedtosufferfrom"diseasesofcivilization".II.短文改错：（1）

6、Weoftenthinkinsectstobeharmless.Thisispartlytrue.Manyaninsectareharmful.Fliescarrydiseases.Othersinsectscarrydiseases,too.Farmersareatwarwithinsectsmostthetime.HungerinsectskillcropsinthefieldsFarmersspraythefieldastogetridoftheseinsects.Doesthismeansthatallinsectsareharmful?No.Man

7、yareofgreathelpfultoman.Beesmakehoney.Withbeesandotherinsects,manytreeswouldhavenotfruit.Silkwormsmakesilk.Someinsectseatotherinsectsthatkillfruittrees.（2）TodaywewereorganizedforashorttriptotheWestHill.Wesetoutbytheschoolbusat7:30a.m.Theweatherwaspleasureandeveryoneofuswasexcited.A

8、ftertwohour’sride,wearrive