高中英语人教版 (2019)必修 第二册Unit 2 Wildlife protection完整版ppt课件
展开T learn t get infrmatin frm watching a vide.T learn t guess what the vide is abut by getting infrmatin frm the questins.T learn t cllect characters’ pinins in a vide.T learn t express yur pinin n wildlife prtectin.
9 Essential Elephant Facts
1. There are 3 different kinds f elephant species.
the African bush elephant, the African frest elephant, and the Asian elephant
Elephants use their trunks nt nly t breathe, smell and eat, but t grasp the trees, pick up bjects weighing as much as 700 punds, dig fr water, and give themselves shwers.
2. An elephant's trunk is an all-purpse tl.
The large surface area f its ears is lined with many bld vessels, which take heat away and thus help t cl the temperature dwn in the ht sun.
3. An elephant’s ears help t dissipate heat (散热).
4. Elephants are extremely intelligent animals.
Nt nly can elephants use tls with their trunks, but they als display a high degree f self-awareness (fr example, recgnizing themselves in mirrrs) and empathy (同感) tward ther members.
5. Elephant grups are dminated by females.
Elephants have a unique scial structure: males and females live apart. Three r fur females, tgether with their yung, live tgether in grups f up t a dzen, while males either live alne r frm smaller grups with ther males.
6. Pregnancy (孕期) f the elephant lasts almst tw years.
Abut 22 mnths, African elephants have the lngest gestatin perid f any land mammal (陆地哺乳动物). Newbrn elephants weigh abut 110kg, and they usually have t wait at least fur r five years with their mther.
7. Elephants evlved(进化)ver 50 millin years.
Elephants used t be a lt mre cmmn than they are tday. Frm the fssil (化石) evidence, the prgenitr (始祖) f all elephants was tiny, pig-like, which lived in nrthern Africa abut 50 millin years ag. Tday, the clsest living relative f elephants manatees (海牛).
8. Elephants are imprtant parts f their ecsystems (生态系统).
Elephants have an great influence n their habitats, trees, etc. Their behavirs benefit nt nly the elephants themselves, but als ther animals, which take advantage f these envirnmental changes (fr example, African elephants have been knwn t dig caves, which are then used as shelter by bats, insects and smaller mammals).
9. Elephants cntinue t be endangered by the ivry trade.
While elephants are subject t the same envirnmental pressures as ther animals—pllutin, habitat destructin and human civilizatin, they are especially valuable t pachers (偷猎者), wh value them fr the ivry trade. One psitive develpment is the recent decisin by China t ban the ivry.
What d yu think elephant whisperers d?Wh they might be?What’s the relatinship between elephants and elephant whisperers?
The elephant whisperers are the elephant keepers wh wrk fr a prgramme in Kenya. The rganizatin aims t rescue and raise rphan elephants, and then return them t the wild. S far, it has helped hundreds f baby elephants.
The elephant whisperers
Lk at the title, intrductin, and picture n page 24. Then guess whether the statements are true (T) r false (F).
Befre watching the vide, yu can read and circle the key pints in each sentence s that when yu are watching, yu can catch the useful infrmatin easily.
Check yur answers in Befre Yu Watch.
1. The elephants’ mthers left them alne. 2. The baby elephants all cme frm different areas f Kenya. 3. The native envirnment f the elephants is the frest. 4. The keepers have t feed the elephants every fur hurs, day and night. 5. The keepers have t sleep with the elephants.
Watch again. Arrange the fllwing items in the rder yu see them in the vide. Write numbers 1-7 n the lines.
A Tw elephants make friends. ____B The elephant keepers lead the elephants int the frest. ____C A keeper sings t the elephants. ____D The elephants play ftball. ____E An elephant keeper feeds an elephant sme leaves. ____F The keepers put the elephants t bed. ____G The keepers feed the elephants milk using bttles. ____
Answer the questins using infrmatin frm the vide.
Accrding t the elephant keeper, in what way are elephants like peple? They are like peple because if yu lve them, they will lve yu t.
2. What is the mst imprtant thing elephants must learn at the center? The mst imprtant thing they must learn is t make friends, s they can survive tgether.
Discuss the questins in grups.
Why is this prgramme imprtant fr elephants and fr the wrld? The prgramme is imprtant because it prtects elephants in danger and will stp them becming endangered, which is gd fr the wrld because it prtects the diversity f nature.
2. Have yu ever taken care f a baby animal? In what ways is it similar t r different frm taking care f a human baby? I tk care f a kitten nce. It was like a human baby because it culd nt lk after itself and needed help with feeding. Hwever, it culd walk quickly unlike a human baby!
List at least 5 useful measures that we can d t prtect wildlife.
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