初一英语阅读
Therearealmost400differentkindsofsharks,andtheycanbefoundinallfouroceansoftheworld.
Eachkindofsharkslooksdifferent.Somearelongerthanaschoolbus,whileothersaresosmallthattheycanliveinfishbowels.Sharkscomeinallkindsofcolors.Mostofthetime,theircolorshelpthemfitinwiththeirsurroundings.
Sharkshavemanyrowsofteeth,ratherthanjustonerowlikeman.Theteethfromtheoustsiderowgraduallyfallout,andtheteethfromthenextrowtaketheirplace.Somesharkswilllose30,000teethinalifetime!Differenttypesofsharkshavedifferentkindsofteeth.Thisisbecausedifferentsharkseatdifferrentkindsoffood.Somesharkseatfoodassmallasplanktonwhileothersharkseatanimalsasbigasseaturtles.Mostsharksdonoteatveryoften.Somesharkswillgoweeksvetweenmeals.Sharksareatthetopoftheoceanfoodchain.Thatistosaynoanimalscanhuntthemforfood.
Oneofthemostspecialthingsaboutsharksisthattheyhavebeenaroundforalongtime.Sharkshavelivdintheseaforabout64millionyears!Andscientistsbelievetheyhavenotchangedmuchsincethen.Howamazingitis!
Sharksareverydifferentanimals,andtherearestillmanythingspeoplecanlearnaboutthem.
1.Doallkindsofsharkslookthesame?
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2.Whatcancolorsofsharkshelpthemdo?
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3.Whydodifferentsharkshavedifferentkindsofteeth?
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4.Howlonghavesharkslivedinthesea?
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5.Whatplaceoftheoceanfoodchainaresharksat?
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6.Whatdoesthewritertellusaboutsharks?(至少三点)
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