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2020-2021学年人教版英语选修7课件:UNIT 3 UNDER THE SEA PERIOD 1 .ppt

1、Period 1 Warming Up&Reading(1)Save the ocean animals导语:茫茫海洋孕育了无数海洋生物,然而,其中的绿海龟、蓝鲸和大白鲨正面临灭绝的危险,让我们一起拯救这些濒危动物吧。Many kinds of animals live in the ocean.Someof those animals are endangered.Only a few areleft in the world.Scientists are trying to keependangered animals safe.Green sea turtleThe green sea

2、turtle lives in warm waters.An adult green sea turtle eats mostly plants.It can weigh up to 440 pounds.Its shell can grow to 4 feet long.A green sea turtle cant pull its head into its shell the way some turtles can.Why are green sea turtles endangered?Peoplehunt them for their meat and eggs.The turt

3、les alsoget trapped in nets used to catch fish.Pollutionhurts the turtles too.If turtles eat trash,it can killthem.Blue whaleThe blue whale is the largest animal in the world.It is as big as an airplane.The whale can grow to 90 feet long and weigh more than 100 tons.The blue whale lives in all the o

4、ceans.It eats tiny animals called krill(磷虾)A blue whale can eat about 4 tons of krill each day.Bluewhalesareendangered.Peopleoncehunted them for their meat and fat.The fat wasused to make oil for lamps.Special laws nowprotect blue whales.Great white sharkThe great white shark is the largest meateati

5、ng shark.It grows to about 15 feet long.It weighs up to 5,000 pounds.The shark has rows of long,sharp teeth.It eats fish,dolphins,seals,and other ocean animals.Great white sharks are often found in waters near the coast.Peopleareathreattogreatwhitesharks.People hunt them for their teeth,jaws,andmeat

6、.The sharks also get caught in fishing nets.识图填空dive,telescope,pause,shore 1.There are many coconut trees on the_.2.We can use this_ to see the stars.【答 案】1.shore 2.telescope 3.diving 4.pause 3.Many people like _ because they can see many kinds of marine animals.4.We often press this button to _when

7、 using computer or MP3 player.中英匹配1.annual_2.witness_3.pause _4.drag_5.urge _6.abandon_An.目击者;证人;证据 vt.当场见到;目击Bvt.催促;极力主张;驱策Cvt.拖;拉;扯Dadj.每年的;按年度计算的 n年刊;年鉴Evt.放弃;遗弃;抛弃Fvt&n.暂停;中止【答案】1.D 2.A 3.F 4.C 5.B 6.E.构词助记1.accommodateion_ n.住所;住宿2.offshore _ adv.&adj.近海(的);离岸(的)3.telescope_ n.望远镜4.teamwork_n协作

8、;配合5.relationship _ n.关系;血缘关系;交往【答 案】1.accommodation 2.offshore 3.telescope 4.teamwork 5.relationship.通读课文,选择最佳选项()1.The text mainly tells us that _.A.the killer whales are easily trainedBthe killer whales can help the whalerscatch the huge whalesCthe killer whales kill the whales for theirfoodDthe

9、killer whales drag the whales under thewater()2._ killed the whale at last.AOld Tom BThe killer whalesCThe authorDThe whalers()3.After the whale died,the whalersturned the boat around and went home because_.A.they knew it would float up tomorrowBthey abandoned itCthe killer whale would drag it back

10、soonDa dead whale is useless()4.The killer whale protected James by_.Afighting the sharkBkilling the sharkCpreventing the shark going closerDdragging him back()5.From the story,we learn that _.Athe whalers neednt train the killer whalesBthe whalers may train the killer whalesCthe killer whales live

11、on other whalesDthe author worked in the whale station fora long time【答案】15 BDACB.精读课文,完成下表About the huntBefore the huntThe killer,Old Tom,threw itself out of the 1._ and then 2._ again,telling the whalers there was a whale out there.It swam by the 3._,showing the whalers the way.About thehuntDuring

12、 the huntThe killers were working as a(n)4._.Some threw themselves on 5._ of the whales blowhole to stop it 6._.Others stopped it diving or 7._ out to sea.After the huntThe killers 8._ the dead body down into the 9._of the sea,eating its lips and 10._.About therescueDuring a hunt,James was 11._ the

13、boat.He was terrified of being 12._and then suddenly a(n)13._ appeared.After over half an hour they 14._ James,who was firmly 15._in the water by Old Tom.【答案】1.water 2.crashed down 3.boat 4.team 5.top 6.breathing 7.fleeing 8.dragged 9.depths 10.tongue 11.washed off 12.abandoned 13.shark 14.approache

14、d 15.held up.难句分析1.On the afternoon I arrived at the station,as Iwas sorting out my accommodation,I heard a loudnoise coming from the bay.本句的主句是_;as引导_从句。on the afternoon在句中作时间状语,其后面的从句是定语从句,这里省略了引导词_。【答案】I heard a loud noise coming from thebay;时间状语;when2.I had already heard that George didnt likebe

15、ing kept waiting,so even though I didnt havethe right clothes on,I raced after him.本句是一个由_连接的并列句。第一个分句中that引导_从句。第二个分句中_引导让步状语从句。【答案】so;宾语;even though3.A few minutes later,there was no Tom,soGeorge started beating the water with his oar andthere was Tom,circling back to the boat,leadingus to the hun

16、t again.本句是一个由_连接的并列句。第二个分句中,动词ing形式短语circling backto the boat和_作伴随状语。【答案】and;leading us to the hunt again4.It took over half an hour to get the boat backto James,and when we approached him,I sawJames being firmly held up in the water by OldTom.本句是一个由and连接的并列句。第一个分句中it是形式主语,真正的主语是_。第二个分句中when引导_从句。【

17、答案】to get the boat back to James;时间状语.归纳课文,完成语法填空I didnt believe that the killer whales couldhelp whalers catch huge whales until I witnessed it1._ my own eyes many times.OneafternoonatthewhalingstationI2._(hear)a loud noise coming from thebay.Isawahugeanimalinthewater,3._wasOldTom,thekillerwhale.4.

18、_(immediate)we went to theboat and headed out for a whale hunt.The killer whale guided us to 5._hunt.Some killers threw 6._(they)ontop of the whales blowhole 7._(stop)itbreathing.Othersstoppeditdivingor8._(flee)Clancy and his men killedthebaleenwhalewiththehelpofthe9._(kill)After that the killers ate thelips and tongue of the 10._(die)baleenwhale.【答 案】1.with 2.heard 3.which 4.Immediately5.the 6.themselves 7.to stop 8.fleeing 9.killers 10.dead

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