Unit 7 The Sea(5)Lesson 3 The Sea World寄语：A light heart lives long.静以修身。Learning aims: 1. 掌握本课新单词和短语。2.阅读文章，了解海洋生物。3. 初步了解形容词的比较级。Learning important points: 1.理解文章意思和结构2.掌握并灵活运用知识点Learning Steps：Step 1 话题自主探究（A 级）List some of sea animals which you know. Step 2 单词点击（B 级）1. 戏法，把戏 n 2.融化，溶化 vi 3.男生 n 4.厘米 n 5.energetic→n.精力，活力 6.discovery→v.发现 7.educate→n.教育，培养 8.attract→n.吸引人的地方 →有魅力的，诱人的 9.length→adj 长久的，长的 10.up-to-date→adj.过时的 Step 3 短语必记（B 级）1.每两小时 2.当心，小心 3.阻止做 4.一方面，另一方面 5.少于，不到 6.在长度方面 7.虚拟现实 8.越早越好 Step 4 阅读回答（B 级）朗读课文，找到下面句子所在的段落标题1．Fish which use a light to attract food 2．Dolphins in performance 3．Fish that appear to fly in the water 4．Sea creatures that children can touch 5．A big iceberg Step 5 疑难解析（B 级）1. There are fantastic shows every two hours.【导学】every two hours 每两小时，此处 every 的意思 (1)every+基数词+复数名词=every+序数词+单数名词，作“每（多少）…”every three days=every third day 每三天/每隔两天The bus goes every 10 minutes.翻译： (2)every+序数词+单数名词，意为“每…第…”He comes to see his uncle every third Sunday every month.翻译： (3) every other+单数名词，意思是“每隔一…”every other day 每隔一天，every other tree 意思 , every other line意思 (4) every few+复数名词，意思是“每隔几…”1We had to stop every few miles.2. They have a huge mouth and can eat fish as big as themselves.Watch out!翻译： Watch out 相当于 look out, watch out 也可以后接 for，表是“当心…”汉译英：当心，火车开过来了。 小心楼梯，这些楼梯很陡。 —they’re steep.【链接】watch 词组小结watch over 看守，照顾 on the watch for 密切注意，监视着 on watch 值班，监视 set a w...
