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ID:9694824
大小:158.75 KB
页数:4页
时间:2018-05-05
《英语:湖南特有题型检测题库(新人教版必修4)》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、英语:湖南特有题型检测题库(新人教版必修4)Passage1(湖南高一检测)一阅读短文,按要求填空(每空不超过3个词)(10分)Dolphinsarenotfish;they’remammals.Theyarewarm-bloodedlikemanandgivebirthtoonebabycalledacalfatatime.Atbirthacalfisabout90—130cmlongandgrowstoabout4m.Theyliveupto40years.Theyarehighlysociableani
2、mals.Theirteethareinterlockingrowsofhooks,suitableforholdingslipperyfish.Theyeatfishwholestartingwithheadfirst.Whentheygowildtheykeeptheirmouthopenandsometimeskeepitnoddingtoexpresstheiraggression.Greateraggressionisshownbyviolentjawclapping.Dolphinsbreathe
3、throughtheirblowhole(呼吸孔)locatedatthetopoftheirhead.Thedolphin’seyesproduceaspecialslipperysecretion(分泌物)whichprotectstheeyesfromforeignobjectsandwaterfriction.Dolphinsusetheirpowerfultailtomovethroughthewater.Theyalsousetheirtailwhilehunting.Theyslaptheirt
4、ailrapidlywhentheygetannoyedorwhentheywanttoindicatethesignofdangertoalertotherdolphins.Thedolphin’sskiniscompletelysmoothallowingthedolphintomoveeasilythroughthewater,andalsoreduceheatloss.Theirskinmaybearrakemarksfromotherdolphin’steethduringplayormating,
5、andcaneasilybecomebadlysunburnediftheystrand(搁浅).Theirbodiesareverystreamlinedsotheymayswimathighspeedthroughthewater,andanexampleofthisistheirears.Dolphin’searsarebarelynoticeablemarkedonlybyasmallholejustbehindtheeyes.Whilesleeping,itshutsdownonlyhalfofit
6、sbrain,asitsbreathingisundervoluntarycontrol.Dolphinstakeshortcatnaps,floatingjustbelowthesurface,andthenslowlyrisingtobreathe.Oftendolphinsareveryactiveduringnighttime,forsomethisistheirmainfeedingtime.Dolphinsareabletodivetogreatdepths,andalsoleaptogreath
7、eights.Theymayleaptoavoidpredatorsortoshowhowpowerfultheyaretofemalesatmatingtime.Title:DolphinsⅠ.Characteristics●mammals:warm-bloodedanimalsandonebabyatabirth●length:51.___________●lifespan:40years●highlysociableanimalsⅡ.52.___________●teeth→holdingslipper
8、yfishandeatingfishwhole53.__________●openingandnoddingmouth→expressingtheiraggression●54._________jaw→expressinggreateraggression●blowholeatthetopoftheirhead→55.____________●eyeswithaspecialslipperysec
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