英语必修 第二册Unit 6 Earth first优秀ppt课件

这是一份英语必修 第二册Unit 6 Earth first优秀ppt课件，共40页。PPT课件主要包含了dangerous，endangered，sharks，dropped，Finning ，protect等内容，欢迎下载使用。

Unit 6 Earth First
SHARKS: DANGEROUS OR ENDANGERED?
T read fr the main idea f the passage.T predict what the passage will talk abut accrding t the title, pictures.T read fr details and figure ut authr's purpses.T understand the changes f the authr's attitudes twards sharks. T express ideas n hw t prtect endangered sharks based n the understanding f the text.T learn and then use sme key wrds and expressins.
D yu knw anything abut sharks? Share them in the class.
There are ver three hundred different species f shark. The unusual thing abut all these fish is the fact that they have n bnes! Their entire skeletn (骨架) is made up f cartilage (软骨). Different sharks have different shapes f teeth. The great white shark has very sharp teeth that are able t tear big pieces f its prey (猎物). Mst f sharks feed n sea creatures like fish, squid and crabs. The great white shark has been knwn t eat seals.
Sharks have excellent sight. They als have a very gd sense f hearing and pick up sunds f struggling fish far away, sunds that wuld nt be heard t the human ear. They als have a very keen sense f smell and are attracted by the smell f bld cming frm an injured fish.      
What's yur first impressin f sharks?
Tick the wrds that yu wuld use t describe sharks.
□ dangerus □ pwerful□ endangered □ interesting□ man-eating □ terrifying□ cute □ intelligent□ huge
Add any mre wrds yu can think f t describe sharks and cmpare yur chices with the class. Share what yu knw abut sharks.
Mre wrds: flexible, fierce, cean giant, sharp teeth...
Have yu ever seen the film Jaws?Intrduce the plt f the film.
Directr: Steven SpielbergWriters: Peter Benchley(screenplay), Carl Gttlieb (screenplay) 
1. What's yur favurite sea animal? Why?2. What can we d t make a cntributin t sea animal prtectin? Give yur suggestins.
Read the passage and find ut hw sharks are described in the film Jaws.
Sharks are described in the film as dangerus and bad animals that eat humans.
Match the main idea with its crrespnding paragraph.
n. 鱼鳍v.切去（鱼的）鳍
Wrk ut the structure f the text.
Mre peple want t prtect sharks frm extinctin.
Chse the authr’s purpse in writing the passage.
If we can figure ut the authr’s purpse, then we can understand the text mre deeply.作者写作有三个基本目的: 说服读者(t persuade)，告知读者(t infrm)，娱乐读者(t entertain)。
可以通过文章的体裁来大致确定作者的写作目的。例如：P (Persuade): 报纸上的社论或广告大多以说服读者为目的；I (Infrm): 教科书、百科全书、字典、食谱或产品说明书等图书或文章多以告知读者信息为目的；E (Entertain): 童话、漫画或小说等图书多以娱乐读者为目的。
还可以通过一些问题来确定作者的写作目的：P (Persuade): Did the authr try t change yur mind? Did the authr try t make yu d r believe smething?I (Infrm): Did the authr try t share infrmatin with yu? Did the authr teach yu smething new? Did the authr tell yu hw t d smething?E (Entertain): Did the authr try t make yu laugh? Did the authr make yu relax & enjy the stry?
1. T criticize Peter Benchley’s misleading descriptin f sharks in his bk and advcate the prtectin f sharks.2. T explain peples' misunderstanding f sharks and raise awareness f shark prtectin.3. T infrm peple abut sharks and recmmend the film and the bk t them.
Please fill in the blanks in the chart.
fell / drpped
Please cmplete the frm intrducing the film Jaws.
Please write dwn what the underlined wrds refer t accrding t the text.
1. We see a wman swimming at night in a dark sea. Suddenly, she is pulled underwater. She surfaces, cries in fear, then disappears frever. This is the pening scene frm the 1975 film Jaws, shwing a shark attack. ______________________________________ ______________________________________ ______________________________________
A wman is swimming at night in a dark sea. Suddenly, she is pulled underwater. She surfaces, cries in fear, then disappears frever
2. It strengthened peple's lng-held idea f the great white shark as a dangerus animal.  ______________________________________3. Other peple started fishing fr sharks, killing as many as they culd. ______________________________________
 the 1975 film Jaws
4. After 1975, the number f large sharks arund America fell quickly, and sn fell arund the wrld. This was nt nly due t fear f sharks, but als finning. _______________________________________ _______________________________________5. Benchley saw sharks being killed and this caused a deep change in him. _______________________________________
The number f large sharks arund America fell quickly, and sn fell arund the wrld.
Benchley saw sharks being killed.
6. Tday, as we learn mre abut sharks, mre peple than ever want t prtect them frm extinctin.           ____________________________________
Cmplete the chart shwing hw attitudes twards sharks have changed with wrds and expressins frm the passage.
Peple have always been scared f sharks because they are cnsidered 1.____________________.
as dangerus animals
Peple have a nrmal fear f sharks.
v. 使（某人）惊恐，吓唬
Peple wh saw the film Jaws believed 2. ____________________________________.Sme peple stpped 3.__________________ while thers started t 4. _______________.The number f large sharks fell quickly due t 5. __________________________.
sharks were bad animals that ate humans
swimming in the sea
fish fr sharks
fear f sharks and finning
Peple are mre frightened f sharks.
Peter Benchley admitted that his bk 6. _________________________________ and fught 7._________ them.Experts have prved that 8. _____________________________, and they attack us by mistake.Sme peple became interested in 9. _____________________ and mre are willing t 10. _______________________________.
was wrng abut sharks' behaviur
sharks d nt see peple as fd
understanding sharks
prtect sharks frm extinctin
Mre peple are against finning and wish t prtect sharks.
1. What ther animals d yu knw are endangered? (Yu can surf the internet t find ut mre infrmatin.)2. What are changes f peples' attitudes twards these endangered animals?
v. (通常指用呼吸设备的)潜水
Peter Benchley might feel sad fr the sharks being killed. Or he might feel regretful fr depicting the great white shark as a dangerus animal in his bk. Or he might als feel angry abut finning.
1. Hw d yu think Peter Benchley felt after diving in 1980?
2. What ther films r bks d yu knw that feature wild animals? D they “paint” a gd r bad picture f these animals? Say hw the animals are described.
Belw is the summary f the text with sme cntent missing. Chse the right item frm the bx and make the summary cmplete. Change the frm when necessary.
fin, prtect, frtunate, danger, drp
Jaws, a 1975 film, strengthened peple's lng-held idea f the great white shark as a(n) 1. __________ animal.
After 1975, many peple started fishing fr sharks and the number f sharks quickly 2. ________ all ver the wrld. 3. ________ is a type f fishing where sharks are caught and their fins cut ff, which kills millins f sharks a year. 4. __________, sme peple wh watched the film became interested in understanding and prtecting sharks.
In 1980, Peter Benchley, wh wrte the bk the film Jaws was based n, fught t 5. ________ sharks as he became alarmed by the practice f finning.
Hw d yu like the title f this passage? Is it a gd r bad title? Can yu give anther title t it?
Indicate the specific tpic; Attract readers’ interest
Wrk in pairs t find ut mre infrmatin abut ther wild animals that are facing serius threats r attacks. Think abut hw t prtect them frm being killed and extinct.
Try t use n mre than 60 wrds t make a summary f the passage.