1 / 19
文档名称:

sharks(鲨鱼).pptx

格式:pptx   页数:19页
下载后只包含 1 个 PPTX 格式的文档,没有任何的图纸或源代码,查看文件列表

如果您已付费下载过本站文档,您可以点这里二次下载

分享

预览

sharks(鲨鱼).pptx

上传人:119060444 2016/5/18 文件大小:0 KB

下载得到文件列表

sharks(鲨鱼).pptx

文档介绍

文档介绍:A shark has an extremely good sense of can find small amounts of substances in water,such as blood and body liquids by also sense electrical and ic energy linked to nerves and muscles of living animals . There are hundreds of kinds of I'm going to tell you two of the most famous sharks. The kinds of sharks The great white shark is a streamlined swimmer and a ferocious predator with 3,000 teeth at any one much-feared fish has a torpedo- shaped body,a pointed snout,a crescent-shaped tail,5 gill slits,no fin spines,an anal fin,and 3 main fins:the dorsal fin (on its back) and 2 pectoral fins (on its sides).When the shark is near the surface,the dorsal fin and part of the tail are visible above the water. Carcharadon carcharias Rhincodon typus The whale shark is a slow-moving filter feeding shark, the largest living fish species. The largest confirmed individual was metres ( ft) in length. The heaviest weighed more than 36 tonnes (79,000 lb) The shark is found in warm oceans, lives in the open sea with a lifespan of about 70 species originated about 60 million years ago. Sharks Attack Human Attacked By Sharks ? A Nudist Swimmer in Hawaii A 54-year -old man suffers ankle injuries in waters off a clothing-optional beach in Nov 4,2015. ? A Tourist in Cape Town ,South Africa Lloyd Skeno attacked and finally eaten by sharks. Though the government searched for the body, it's said that there was no hope that they would find it . ? Sharks Attack in South Africa ,1957 Between the end of 1957 and the beginning of 1958 , there were 7 accidents in South Africa. Because it mainly concentrated in the Christmas,so it was also called "Bloody Christmas ". ?...... Why sharks attack human beings ? There are many opinions to explain why sharks sometimes attack people. One opinion is that sharks are just curious. We know that sharks are the strongest animals in their environment,

最近更新

2025年情侣网名二字简约 6页

2025年情人节送女生礼物排行榜 9页

2025年儿童用药安全知识普及与守护 20页

二零二五年度个人消费贷款担保人责任合同 8页

二零二五年度个人水电设施安全评估与整改合同.. 9页

二零二五年度个人无房产证房屋买卖合同履约监.. 9页

二零二五年度个人数码产品买卖合同 9页

二零二五年度个人提成提成比例调整合作协议 8页

二零二五年度个人承揽合同范例:教育培训课程.. 9页

二零二五年度个人房产买卖合同(含交付时间节.. 9页

2025年总结感悟优秀作文 9页

二零二五年度个人对个人房屋租赁合同(含租客.. 8页

2025年儿童反复喘息精准预测与高效治疗方案解.. 43页

二零二五年度个人助学贷款合同模板 8页

二零二五年度个人出租车承包服务合同模板 8页

2025年思科OSPF功能介绍及配置 3页

二零二五年度个人公司代持股协议书:股权代持.. 7页

二零二五年度个人住房出租与租赁合同履约保证.. 7页

二零二五年度个人仓储空间买卖及使用权转让合.. 9页

二零二五年度个人买卖二手车交易保障协议 9页

二零二五年度个人与村委会签订的土地流转及农.. 8页

二零二五年度个人与个人生活消费借款协议 7页

库迪咖啡品牌合作协议 5页

我的大学梦主题班会 29页

(完整版)小学生必背古诗词80首 2页

计算机专业毕业论文3000字 6页

CNAS-EL-03《检测和校准实验室认可能力范围表.. 10页

抗肿瘤药物测试题及答案 7页

XX中学党风廉政建设责任清单 3页

生肖特别好码八句诗讲解 58页