Watch the vide and answer the questins.What des the vide want t tell us?
What envirnmental prblem des each cartn refer t?
air pllutin
water pllutin
defrestatin
glbal warming
What d yu think is the mst serius envirnmental prblem we face tday? What shuld be dne t help slve it?
If envirnmental prblems are nt slved, we will see the scene f the picture and such.
Unit 6 Earth first
Understanding ideas
Watch a clip frm the film Jaws and find ut what happens.
What’s yur feeling ?
Brainstrming
What’s yur impressin f sharks? (use adjectives t describe it)
interesting
intelligent
Sharks: dangerus r endangered?
What des the title Sharks: Dangerus Or Endangered? mean?
Peple nrmally thinks sharks are ___________ but actually they are____________
Activity 1: Divide the passage int 3 parts and give the main idea f each part.Activity 2: Chse the authr’s purpse in writing the passage. (Highlight the evidence while reading.)
Lk thrugh the text quickly and finish the tw activities.
The basic structure f the text
Chse the authr's purpse in writing the passage.
1 T criticise Peter Benchley's misleading descriptin f sharks in his bk and advcate the prtectin f sharks.2 T explain peple's misunderstanding f sharks and raise awareness f shark prtectin.3 T infrm peple abut sharks and recmmend the film and the bk t them.
Para. 1　 A.Finning kills millins f sharks a year.Para. 2 B.The pening scene frm the 1975 film Jaws.Para. 3 C.Mre peple want t prtect sharks frm ____________extinctin.Para. 4 D.Benchley came acrss an awful sight f dead ___________sharks and fught t prtect sharks.Para. 5 E.Jaws made peple mre scared f sharks and ___________peple killed as many sharks as they culd.
Match paragraph 1-2 with its main idea.
SHARKS: DANGEROUS OR ENDANGERED?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, [1]shwing a shark attack．It tells the stry f a great white shark that attacks and kills swimmers. Jaws was a great success, attracting huge audiences and winning many awards.It strengthened peple's lng-held idea f the great white shark as a dangerus animal.[1]動(dòng)詞-ing短語作定語，可改寫為定語從句which shws a shark attack。
underwater adv.在水面下surface vi.升到水面， 浮出水面in fear 驚恐地，害怕地lng-held長(zhǎng)期持有的
2. Peple have always been scared f sharks, but Jaws made things wrse．It made peple frightened f sharks, especially f the great white shark.Many peple wh saw the film started t believe that sharks were bad animals that ate humans.Sme peple stpped swimming in the sea, afraid f the hrrible creature frm the film. Other peple started fishing fr sharks, killing as many as they culd．At that time, nbdy cared if sharks were killed, r hw many were killed. Peple just wanted them killed.
be scare f... 害怕 v．使(某人)驚恐，嚇唬
1.What des Jaws mainly talk abut?
2.What influence did Jaws have n peple’s attitude t sharks?
3.What did they d t these “dangerus” sharks?
It tells the stry f a great white shark that attacks and kills swimmers.
It strengthened peple’s lng-held idea f sharks as dangerus animals.
They stpped swimming, started fishing, killed sharks and didn’t care abut the killing.
Read para. 1&2 and answer the fllwing questins.
Summary f para.1 & 2:Peple's ________________________ makes sharks' number fall quickly.
misunderstanding (fear)
Para. 1　 A.Finning kills millins f sharks a year.Para. 2 B.The pening scene frm the 1975 film Jaws.Para.3 C.Mre peple want t prtect sharks frm ____________extinctin.Para.4 D.Benchley came acrss an awful sight f dead ___________sharks and fught t prtect sharks.Para.5 E.Jaws made peple mre scared f sharks and ___________peple killed as many sharks as they culd.
Match paragraph 3-4 with its main idea.
3. 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.Finning is a type f fishing [2]where sharks are caught and their fins cut ff．The sharks are thrwn back int the sea where they die slwly and painfully. The fins are used in shark fin sup. Finning kills millins f sharks a year.[2]where引導(dǎo)定語從句，修飾先行詞a type f fishing；cut ff前省略了are。
the number f ... ...的數(shù)量due t 由于，因?yàn)?fin v．切去(魚的)鰭 n．魚鰭cut ff切掉；被隔絕；切斷(供給)；中斷thrw back int 扔回painfully 疼痛地
4. Finning wuld have an unexpected effect upn Peter Benchley, the man wh wrte the bk the film Jaws was based n．In 1980, Benchley was diving when he came acrss an awful sight.It was an area where fishermen were finning, and the sea flr was cvered with dead sharks. Benchley saw sharks being killed and this caused a deep change in him. He came t see peple as a danger t sharks, rather than the ther way rund.
have an effect n/upn對(duì)...有影響be based n 建立在...基礎(chǔ)上dive v．(通常指使用呼吸設(shè)備的)潛水rather than而不是the ther way rund相反的情況；顛倒過來，反過來
Frm that day n, he fught t prtect sharks.He admitted that his bk was wrng abut sharks' behaviur. “Sharks dn't target humans，” he said. Experts have prved that sharks d nt see peple as fd, and they attack us by mistake．Only arund six peple are killed by sharks every year.
target v．把……作為目標(biāo)by mistake錯(cuò)誤地，無意中[近義詞組]by chance 偶然，意外地[反義詞組]n purpse故意地；有意地
Finning's effect n sharks is _________.(adj.)
Finning's effect n Peter Benchley is _______________.(adj.)
Fins are cut ff. Sharks are thrwn back. They die slwly and painfully.Millins f them are killed.
Supprtive evidence
Supprtive evidence
He used t think sharks were __________ animals.In 1980, he came t see peple as __________ t sharks.After 1980, he _________________ sharks and ________ that his bk was wrng.
Read para. 3&4 and cmplete the chart.
a danger
fught t prtect
We shuld take actin !
Para. 1　 A.Finning kills millins f sharks a year.Para. 2 B.The pening scene frm the 1975 film Jaws.Para.3 C.Mre peple want t prtect sharks frm ____________extinctin.Para.4 D.Benchley came acrss an awful sight f dead ___________sharks and fught t prtect sharks.Para.5 E.Jaws made peple mre scared f sharks and ___________peple killed as many sharks as they culd.
Match paragraph 5 with its main idea.
5. Frtunately，nt everyne wh watched the film Jaws became afraid f sharks — sme became interested in understanding them. Tday, as we learn mre abut sharks, mre peple than ever want t prtect them frm extinctin．
frtunately adv.幸運(yùn)地prtect ... frm sth / ding sth 保護(hù)...不受...危害extinctin n．滅絕，絕種
Hw des peple’s attitude twards sharks change?
Read para. 5 and answer the fllwing questin.
be mre frightened
want t prtect
learn mre,understand
Lk dangerus but in fact endangered
panglin（穿山甲）
Chinese alligatr (揚(yáng)子鱷)
Snw Lepard（雪豹）
Suth China Tiger (華南虎)
Cmplete the chart shwing hw attitudes twards sharks have changed with wrds and expressins frm the passage.
as dangerus animals
sharks were bad animals that ate humans
swimming in the sea
fish fr sharks
fear f sharks and finning
was wrng abut sharks' behaviur
sharks d nt see peple as fd
understanding sharks
prtect sharks frm extinctin

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Unit 6 Earth first

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