英语：Unit3 Under the sea Period 2 优秀教案（新人教版选修 7）教材分析 Warming Up provides two activities to spark students' interest in the topic.Of course ， before the class ， the students must have gathered some information to make preparations for this class.Many kinds of their favorite sea animals are presented in their vivid pictures.Students are encouraged to introduce them using some new expressions such as at an aquarium，on a snorkelling trip.Pre － reading is designed to further stimulate their interest in the topic of the unit.Meanwhile，students may have some basic information about the text. The reading passage Old Tom the Killer Whale tells about two anecdotes witnessed by the writer himself.The teacher can first get students to skim the text for the characters in the two anecdotes and get the main idea of each anecdote.Then let them scan for further understanding.In order to let students pay attention to the writer's vivid description，the teacher can ask them to do a blank－filling exercise in pairs to find out some key verbs and verb phrases.Having done this，students must have had a very clear understanding of the whole hunting and saving process.To make their understanding easier ， the teacher should deal with any language problems while they are reading.And then underline some useful words and expressions.For further thinking ， students are expected to work in pairs or groups.They will discuss the problems and work out the answers cooperatively，choosing a reporter in their group.Students will think actively，so various answers are possible.To consolidate the contents of the reading passage ， students should be required to retell the passage in the name of Old Tom or the balee...
