文档介绍：B7U3 Under the sea Warming up ? Learning goals: 1. Lead the students to learn about the new topic. the students to enlarge the vocabulary of the new topic. Where did you see them? at an __________ aquarium on a __________ trip snorkel l ing on a snorkeling trip on a snorkeling trip at an aquarium at an aquarium on a boat tour on a boat tour in films in films on TV nature programs on TV nature programs on the on the Where can you see them? in books Now, we are on a snorkel l ing trip under the sea. Later, we ’ e across a great variety of marine animals. Guess what we ’ ll see? clam 蛤 a large reptile ( 爬行动物) which has a thick shell covering its body. turtle 海龟