Unit 1 How tall are you ? ½Ì°¸¼°½Ìѧ·´Ë¼(2)

¡¡¡¡°åÊé²¢½Ì¶Áµ¥´Ê ¡°sperm whale¡±ºÍ¡°killer whale¡±. ѧÉú¸ú¶Á²¢Æë¶ÁÊý±é¡£

¡¡¡¡(2) ¿Î¼þ³ÊÏÖÁ½ÖÖ¾¨ÓãµÄ³¤¶È£¬½Ìʦ˵£º¡°The sperm whale is 15 meters.The killer whale is 8 meters. °åÊé²¢Áì¶Á meter, teach:1meter=100cm, let the students guess the meaning of ¡°meter¡± Teacher says 1 meter=100cm, 15 meters=1500cm, 8 meters=800cm.

¡¡¡¡(3) ¿Î¼þ³ÊÏÖÁ½ÖÖ¾¨ÓãµÄÖØÁ¿£¬Teacher says: ¡°The sperm whale is 35 tons. The killer whale is 3600kg.¡±°åÊé²¢Áì¶Á3600kg. Teachet says: ¡°1000kg=1ton.¡±°åÊé²¢½Ì¶Á ¡°ton¡± Let the students guess the meaning of ¡°ton¡±.Teachet says: ¡°1000kg=1ton,3600kg=3.6tons ¡°

¡¡¡¡(4) ³öʾ¿Î¼þ Teachet says: ¡°Look,they are sperm whale¡¯s food. This is a squid, a lobster,a shark.¡± °åÊé²¢ÀûÓÃÒô½Ú½Ì¶ÁÕ⼸¸öµ¥´Ê¡£

¡¡¡¡¿Î¼þ³ÊÏÖÓã¡¢Äñ¡¢º£±ªºÍ¾¨ÓãµÄͼƬ.

¡¡¡¡Teacher says: ¡°They are killer whale¡¯s food. This is a seal.¡±°åÊé²¢½Ì¶Áµ¥´Êseal. Teacher says : ¡°The killer whale eats fish,birds,seals and even whales.¡±°åÊé²¢Áì¶Áµ¥´Êeven,ÈÃѧÉú²Â²âevenµÄººÓïÒâ˼Òâ˼¡£

¡¡¡¡£¨Éè¼ÆÒâͼ£º±¾¿ÎµÄÉú´ÊÁ¿Ìرð´ó£¬ÎªÁ˽â¾öÕâÒ»ÎÊÌ⣬ÏÈÊÇͨ¹ý¶ÔÁ½ÌõÓãµÄ±È½Ï£¬×ÔÈ»µÄÒý³öе¥´Êsperm whale ºÍkiller whale ,ͨ¹ýÁªÏµ¾É֪ʶ£¬ÈÃѧÉú×Ô¼º²Â²â±¾¿ÎµÄе¥´ÊmeterºÍton, È»ºóͨ¹ýͼƬµÄչʾ£¬½Ì¶Á±¾¿ÎµÄе¥´Êsquid, lobster, shark, seal, ×îºó°ïÖúѧÉúͨ¹ýÉÏÏÂÎÄÀ´²Â²âµ¥´ÊevenµÄÒâ˼£¬°ïÖúѧÉúɨ³ýÏÂÒ»²½ÔĶÁµÄÕÏ°­¡££©

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