Somescientistssaythatanimalsintheoceansareincreasinglythreatenedbynoisepollutioncausedbyhumanbeings.Thenoisethataffectsseacreaturescomesfromanumberofhumanactivities.Itiscausedmainlybyindustrialun|小学英语问答-字典翻译问答网

问题标题：

Somescientistssaythatanimalsintheoceansareincreasinglythreatenedbynoisepollutioncausedbyhumanbeings.Thenoisethataffectsseacreaturescomesfromanumberofhumanactivities.Itiscausedmainlybyindustrialun

问题描述：

Somescientistssaythatanimalsintheoceansareincreasinglythreatenedbynoisepollutioncausedbyhumanbeings.

Thenoisethataffectsseacreaturescomesfromanumberofhumanactivities.Itiscausedmainlybyindustrialunderwaterexplosionsoceandrillingandshipengines.Suchnoisesareaddedtonaturalsounds.Thesesoundsincludethebreakingoficefieldsunderwaterearthquakesandsoundsmadebyanimalsthemselves.

Decibels(分贝)measuredinwateraredifferentfromthosemeasuredonland.Anoiseofonehundredandtwentydecibelsonlandcausespaintohumanears.Inwateradecibellevelofonehundredandninety－fivewouldhavethesameeffect.

Somescientistshavesuggestedsettinganoiselimitofonehundredandtwentydecibelsintheoceans.Theyhaveobservedthatnoisesatthatlevelcanfrightenandconfusewhales（鲸鱼）.

AteamofAmericanandCanadianscientistsdiscoveredthatloudernoisescanseriouslyinjuresomeanimals.

Theresearchteamfoundthatpowerfulunderwaterexplosionswerecausingwhalesintheareatolosetheirhearing.Thisseriouslyaffectedthewhales'abilitytoexchangeinformationandfindtheirway.Someofthewhalesevendied.Theexplosionshadcausedtheirearstobleedandbecomeinfected(被感染的).

Manyresearcherswhoseworkdependsonoceansoundsareagainstalimitofonehundredandtwentydecibels.Theysaysuchalimitwouldmeananendtoimportantindustrialandscientificresearch.

Scientistsdonotknowhowmuchandwhatkindsofnoisesareharmfultooceananimals.Howevermanyscientistsdon’tthinkthatnoiseisagreaterdangerthantheybelieved.Theywanttopreventnoisesfromharmingcreaturesintheocean.

36．Accordingtothepassagewhichofthefollowingisincreasinglydangeroustoseacreatures?

A.Thesoundofcars.

B.Thesoundofvoices.

C.Man-madenoisepollution.

D.Thesoundofsteps.

37．AccordingtothepassagenaturalsoundsincludeallofthefollowingEXCEPT________.

A.soundsmadebyanimalsthemselves B.oceandrilling

C.underwaterearthquakes D.thebreakingoficefields

38．Whichofthefollowingisdiscus

史玉生回答：

　　36．C 　　37．B 　　38．A 　　39．D 　　40．B 　　分析：　　本文叙述了研究表明噪音污染引起了海洋生物的危险，科学家将来要采取措施拯救海洋生物，阻止噪音对海洋生物的伤害，提醒我们也要意识到保护海洋生物的重要性。　　36．细节理解题。由第一段Somescientistssaythatanimalsintheoceansareincreasinglythreatenedbynoisepollutioncausedbyhumanbeings.可知噪音污染引起了海洋生物的危险，故选C。　　37．细节理解题。由第二段Thesesoundsincludethebreakingoficefieldsunderwaterearthquakesandsoundsmadebyanimalsthemselves.可知oceandrilling不是自然的声音，故选B。　　38．段落大意题，根据Decibels(分贝)measuredinwateraredifferentfromthosemeasuredonland.这是中心句可知同一种噪音在陆地和水面产生的效果是不一样，故选A。　　39．推理判断题。根据第六段Theresearchteamfoundthatpowerfulunderwaterexplosionswerecausingwhalesintheareatolosetheirhearing.可知水下巨大的爆炸声会使鲸失去听力，故选D。　　40．推理判断题。由文章的最后一句话Theywanttopreventnoisesfromharmingcreaturesintheocean.可知科学家将来要采取措施阻止噪音对海洋生物的伤害，故选B。　　考点：　　环保类短文阅读。