答案出自：法宣在线题库助手（https://gongxuke.net/）
Paragraph3________.
A、TheChangeinPeople’sEatingHabits.
B、TheFoodsWhichGrowinSoil
C、TheFoodsWhichWereFed.
D、TheImportanceofFiber.
E、Today’sVariousKindsofFoods.
F、OtherAspectsofHealthyEating
正确答案：公需科目题库搜索,培训助手微Xin:go2learn
答案解析：答案选C。根据原文第三段“Naturalfoodsalsoincludeanimalswhichhavebeenallowedtofeedandmovefreelyinahealthyenvironment.”可知，本段主要讲天然食品也包括在健康环境中养殖的。
Thepurposeofthisarticleisto__________.
A、urgeachangeinourpresentdiet.
B、interestedinsweetenedfood.
C、worriedaboutmodernfood
D、increasetheyieldsoftheircrops.
E、muchofthefoodtheyeatisnotgoodforhealth
F、improvetheirworkingconditions.
正确答案：公需科目题库搜索
答案解析：答案选A。本文作者主要希望人们改变现在的饮食习惯。
Accordingtothepassage,beforetheIceAge,thecontinentalshelfwassubmergedinwater.
A、Right
B、Wrong
C、Notmentioned
正确答案：公需科目题库搜索
答案解析：答案选A。题干意思：根据文章，在冰川时代之前，大陆架就淹没在水中了。
TheiceAgetwentythousandyearsagogreatlybenefitsmankindinthelongterm.
A、Right
B、Wrong
C、Notmentioned
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答案解析：答案选C。题干意思：冰川时代两万年以前对人类长期以来有极大好处。对照文章，并没有相关描述。
Peoplebegintochangetheireatinghabitsbecause_______.
A、urgeachangeinourpresentdiet.
B、interestedinsweetenedfood.
C、worriedaboutmodernfood
D、increasetheyieldsoftheircrops.
E、muchofthefoodtheyeatisnotgoodforhealth
F、improvetheirworkingconditions.
正确答案：公需科目题库搜索
答案解析：答案选E。根据原文第一段“……havebecomeawareoftheneedtochangetheireatinghabits,becausemuchofthefoodtheyeat,particularlyprocessedfoods,isnotgoodforthehealth.”可知答案选E。
Accordingtothepassage,theglaciersmovedfromthenorthdirectlytothesouth.
A、Right
B、Wrong
C、Notmentioned
正确答案：公需科目题库搜索
答案解析：答案选B。题干意思：根据文章，冰川直接从北方移到南方。原文是从北方到西南方。
Accordingtothepassage,thewriterofthisarticleseemstobe_________.
A、urgeachangeinourpresentdiet.
B、interestedinsweetenedfood.
C、worriedaboutmodernfood
D、increasetheyieldsoftheircrops.
E、muchofthefoodtheyeatisnotgoodforhealth
F、improvetheirworkingconditions.
正确答案：公需科目题库搜索
答案解析：答案选C。根据原文最后Hence,theemphasisisplacedontheeatingofwhole–mealbreadandmorevegetablesbymodernexpertson“healthyeating”.可知答案选C。
Farmersusechemicalsandfertilizerinorderto_________.
A、urgeachangeinourpresentdiet.
B、interestedinsweetenedfood.
C、worriedaboutmodernfood
D、increasetheyieldsoftheircrops.
E、muchofthefoodtheyeatisnotgoodforhealth
F、improvetheirworkingconditions.
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答案解析：答案选D。根据原文第二段“Thisinitselfisanaturalprocesscomparedwiththeuseofchemicalsandfertilizers,themainpurposeofwhichistoincreasetheamountbutnotthequalityofgoodsgrownincommercialfarmingareas.”可知答案选D。
Paragraph2________.
A、TheChangeinPeople’sEatingHabits.
B、TheFoodsWhichGrowinSoil
C、TheFoodsWhichWereFed.
D、TheImportanceofFiber.
E、Today’sVariousKindsofFoods.
F、OtherAspectsofHealthyEating
正确答案：公需科目题库搜索
答案解析：答案选B。根据第二段“Naturalfoods,forexample,arevegetables,fruitandgrainwhichhavebeengrowninsoilthatisrichinorganicmatter.”可知，本段主要讲天然食品是在土壤中生长的。
Itcanbeinferredfromthepassagethatglacierswereprimarilymadeupofseawater.
A、Right
B、Wrong
C、Notmentioned
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答案解析：答案选A。题干意思：从文章中可以推断，冰川主要由海水构成。