六年级下册Unit_1_Part_B_Let's_read课件

1、Unit1 B.Lets read,Sperm Whale 抹香鲸,抹香鲸是世界上最大的齿鲸。它们在所有鲸类中潜得最深、最久， 因此号称为动物王国中的“潜水冠军”。可能只有喙鲸科的两种 瓶鼻鲸在潜水方面能与之比拟。除了过去被视为头号目标的捕鲸时 期以外，抹香鲸可能是大型鲸中数量最多的一种。美国作家 梅尔维尔的经典名著白鲸记，书中那头神勇的大鲸 莫比敌克就是一头抹香鲸。,guess:,Killer Whale 虎鲸,虎鲸是一种大型齿鲸，身长为810米，体重9吨左右， 背呈黑色，腹为灰白色，有一个尖尖的背鳍，背鳍弯曲 长达1米，嘴巴细长，牙齿锋利，性情凶猛，食肉动物， 善于进攻猎物，是企鹅、海豹等

2、动物的天敌。有时它们 还袭击其它鲸类，甚至是大白鲨， 可称得上是海上霸王。,length 长度 weight 重量 height 高度 teeth 牙齿 skill 技能 tail 尾巴,( )1.The sperm whale is longer than the killer whale. ( )2.The sperm whale is heavier than the killer whale. ( )3.The killer whale is shorter than the sperm whale. ( )4.The killer whale has more（更多） teeth t

3、han the sperm whale. ( )5.The sperm whale can jump out of the water.,一、听音，判断对错：,二、读一读，填一填：,二、听音，补充单词或数字：,1.A sperm whale is than a killer whale in its length. 2.A killer whale is than a sperm whale in its size. 3.A sperm whale has 50 teeth. It has more teeth than a killer whale. 4.The length of a sp

4、erm whales tooth is cm .,课本练习:,longer,smaller,10,20,( )1.The yellow dog is taller than the black dog. ( )2.The black dog is heavier than the yellow dog. ( )3.The black dog has more teeth than the yellow dog. ( )4.The yellow dogs tail is shorter than the black dogs. ( )5.The yellow dog can swim and c

5、atch the ball well.,三、阅读，完成练习：,1.The black dog is than the yellow dog in its length. 2.The black dog is than the yellow dog in its weight. 3.The yellow dogs tail is than the black dogs tail. 4.The black dog has more teeth than the yellow dog. 5.The black dog can and the yellow dog can .,三、填空：,Sperm Whale 抹香鲸,Killer Whale 虎鲸,我们要保护动物！,