1、英语Unit3Under the seaPeriod 2教案2新人教版选修7英语：Unit3Under the seaPeriod 2教案（2）（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
2、 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.Prereading is designed to further stimulate their interest in the topic of the unit.Meanwhile，students may have some basic information
3、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 or
4、der to let students pay attention to the writers vivid description，the teacher can ask them to do a blankfilling 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 unde
5、rstanding 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 repor
6、ter 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 baleen whale or James with as many key words as possible.At the end of the class，by holdi
7、ng a debate，the teacher can arouse students interest further as well as make them aware of the relationship between man and animals and the importance of banning whaling.三维目标知识目标1Get students to learn the useful new words and expressions in this part：anecdote，annual，witness，accommodation，shore，oppos
8、ite，yell，pause，telescope，teamwork，dive，depth，lip，urge，abandon，shark，relationship，help.out.2Let students learn about several different types of whales，especially the killer whales.能力目标1Enable the students to learn to talk about their favorite sea animals.2Develop students reading ability by learning
9、to read about the killer whales and let them learn different learning skills.3Develop their creative thinking ability.情感目标1Arouse students great interest in sea animals.2Make them aware of the relationship between man and animals and the importance of banning whaling.3Develop students sense of coope
10、rative learning.教学重点1Reading comprehension to the text.2Learning more about the killer whales and understanding the relationship between the killer whales and the whalers.3Important words and expressions.教学难点 1The relationship between the killer whales and the whalers.2Develop students reading abili
11、ty.教学方法1Individual，pair and group work.2Taskbased teaching and learning.3Quiz，discussion，blankfilling，retelling，debate.教学工具A computer and a projector.教学过程Step 1Warming up1Ask some students to show some pictures of their favorite sea animals and introduce them to the class.The introduction should cov
12、er these aspects：The English and Chinese name of your favorite sea animal.Where did you find it?Some features of it，its distribution，or living condition.Anything about it is welcome.Why do you like it?Sample introduction：My favorite sea animal is dolphins(海豚)I found them at an aquarium this summer h
13、oliday.Dolphins are very meek(温顺的)Neither as timid animals in virgin forests who run away immediately they discover a stranger，nor as beasts in remote mountains who bare fangs and brandish claws the moment they encounter a person，dolphins are always friendly with people.Dolphins and human beings hav
14、e been on friendly terms all along.I like dolphins，because dolphins are truly intellectual.They can even imitate some peoples voice after a period of training.Yet，dolphins have intelligence different from common animals.The volume and mass of their brain are among the most considerable in the animal
15、 world.Up to the present moment，scientists have two different views on animals intelligence：one is that of all animals，chimps are the most intellectual and capable；another is that chimps are no more capable of studying than dolphins，and it is probable that dolphins are more intellectual than chimps.
16、Therefore，some people consider dolphins as “wizards in the sea”When mentioning dolphins，people will probably speak highly of their supernormal intelligence and ability.In that aquarium，it is common that dolphins are giving a wonderful performance by following the trainers instructions.They seem to b
17、e capable of understanding what mankind expresses and taking actions according to the instructions.At present，the majority of people marvel at dolphins supernormal intelligence as a kind of sea animal.But to what extent can dolphins intelligence and ability achieve？It remains to be probed and resear
18、ched.My favorite sea animal is tropical fish(热带鱼)I found them on a snorkelling trip.I was attracted by its colorful appearance.In the half an hours trip from the shore，I found coral reefs，tropical fish and other marine life.Excitedly，I bought some fishes home.It was my first time to raise tropical f
19、ish.One month ago my friend told me that tropical fish are easier to raise than the golden fish.Her words let me think of another friend of mine.He is raising tropical fish.I am feeding four categories of tropical fish.Two black marry，eight peacocks，another two fishes，although I dont know their name
20、s，are the most beautiful.The peacock is the smallest and isnt colorful as I have seen in other places before.My friend told me they will be beautiful when they grow up.So I put the eight peacock fish into a small fish jar.I observes them every day and is expecting them to be bigger and more colorful
21、.Two of the four big tropical fishes have died including the beautiful one.Perhaps the beautiful fishs life is fragile.If it is true，then I dont expect the small peacocks to turn beautiful.I shouldnt be so greedy to want both.That they just have strong life is enough for me.2The teacher show the pic
22、ture of a killer whale and do a small quiz about it.(1)Whats the Chinese and English name of this whale?虎鲸Killer whales(2)Can you match these whales with their Chinese and English names？(Show students some pictures of different whales.)baleen whale 须鲸 sperm whale抹香鲸 blue whale 蓝鲸 white whale白鲸(3)Whi
23、ch of these kinds of whales can grow to be the largest?Blue whales 蓝鲸(about 2127m in length,100120tons in weight)(4)Humans have been hunting whales for more than _A_ years.A2000B1000C500(5)Will the killer whales attack people and eat them？No.(6)Does a female killer whale give birth to a baby whale o
24、r lay eggs？Give birth to a baby whale.(7)What does a newlyborn baby killer whale feed on？_C_ASmall sea animals. BSea plants. CIts mothers milk.(8)Do the killers belong to the family of dolphins or whales？Dolphins.(9)Male killer whales have a life expectancy of _B_ years，while females can live as lon
25、g as _D_ years.A4050B5060C6070D8090(10)Killers are highly social animals that travel in groups called pods(群)Pods usually consist of _A_ whales.A250 B2050 C3060(11)How many sounds can a killer whale make？62 sounds.(12)Are killers endangered species and in need of conservation？No.(13)The killer whale
26、s are sometimes called the “_A_ of the sea” because they are both very fierce.Awolf Bdog CtigerStep 2Prereading1Read the words in Prereading on Page 19 quickly and fill in the form.WriterAn old man called ClancyOccupationA whalerStyleAnecdotesTimeAt the beginning of the 20th centuryPlaceAustraliaWha
27、t happenedThe killer whales helped the whalers catch a baleen whale.Step 3Skimming1Glance through the two anecdotes and use one sentence to get the main idea of each anecdote.Main ideas：Anecdote one：The killer whales helped the whalers to catch a baleen whale.Anecdote two：Old Tom saved a whaler Jame
28、s.2Fill in the blanks with the names of the roles in the text.(1)_was 16 years of age when he went to work at the whaling station.(2)_orderd Clancy to go to the boat as there was a whale out there in the bay.(3)_was swimming by the boat showing the whalers the way.(4)_told Clancy that they would ret
29、urn the next day to bring in the body of the whale.(5)_was carried by the waves further and further away from the whalers.(6)_knew that Old Tom would protect James.Suggested answers：(1)Clancy(2)George(3)Old Tom(4)Jack(5)James(6)Red Step 4Scanning1Read these two anecdotes carefully and find out some
30、verbs or verb phrases to do the blankfilling worksheet.Anecdote one：There was perfect cooperation between the whalers and the killer whales.Before the huntThe killers action：Threw_itself out_of the water and then crashed_down again.Swam_by the boat，showing the whalers the way.Circled back to the boa
31、t, leading the whalers to the hunt.The whalers reaction：A whaler yelled out. George ran ahead_of_ clancy.Clancy raced_after him.They jumped_into_the boat with the other whalers and headed_out into the bay.During and after the huntThe killers action：A pack of killers are throwing_themselves on top of the whales blowhole to_stop it breathing；some others are stopping it fleeing_out to sea.The killers started racing_between the whalers boat and the whale，just like a pack of excited dogs.Within a moment or two，the whales body was
