Unit 3 Animals Are Our Friends.Lesson 17 Save the Tigers.课件

课件24张PPT。Lesson 17 Save the Tigersthe Bengal tiger
(孟加拉虎)the Siberian tiger（西伯利亚虎）the Sumatran tiger（苏门答腊虎）the Malayan tiger（马来亚虎）the Indochinese tiger（印度支那虎）the South China tiger(华南虎)century [?sent??r?] fur [f??]
symbol ['s?mb(?)l]
courage ['k?r?d?]
brave [bre?v]
chain [t?e?n]n. 世纪
n. （兽类的）毛
n. 标志，象征
n. 勇气，胆量
adj. 勇敢的，无畏的
n. 链子；链条balance ['b?l?ns]
reason ['ri?zn]
disappear [d?s?'p??]
kill [k?l]
cut [k?t]
decrease [d?'kri?s]n. 平衡，平稳
n. 原因，动机，理由
v. 消失，失踪
v. 杀死
v. 砍，切，剪，割
v. 使……变小；减少At the beginning of (在…之初) the 20th century, there are around 100 000 tigers.food chainTigers help keep other wild animals in balance.(使…保持平衡)The tigers are important to(对…重要) the environment.But now some people hunt and kill tigers for money.They also have cut down（砍伐） a lot of trees as well（也）. Now the number of(…的数量) tigers has dropped to (下降到；跌至) a few thousand.The tigers are in danger of (处于危险之中)disappearing.Fill in the blanks.1. _____________ students is about twenty. (……的数量)
2. It’s ____________ your health. (对……是重要的)
3. The river is polluted and ___________ going dry.(处于……危险中)The number ofimportant toin danger ofTry to be excellent！
4. _________________ the party, he gave me a gift. (在……之初)
5. The temperature has __________ below zero. (下降到)
6. It is at the bottom of the _________.?(食物链)
7. You know, computers bring troubles _______. (也)At the beginning ofdropped tofood?chainas well10/4/2018Do you think tigers need our help? Why or why not?
Listen to the tape and fill in the blanks with the corrcct words you hear.1.The number of tigers has dropped to a few _________now .
2.Tigers are very important to the __________.
3.In recent years ,tigers have been in danger of ___________..thousandenvironmentdisappearingRead the lesson and match each paragraph with its main idea.Paragraph 1Paragraph 2Paragraph 3Save the TigersA.Tigers are in danger of going extinct.B."Save the Tigers" is a volunteer group that hopes to stop the tigers from disappearing.C.Tigers are important to the environment.BCAHow many tigers was there at the beginning of 20th century？
Read and Answer:Read and Answer:
Where do tigers live in?
Why are tigers important to the environment?
Read and Answer:
Why are tigers in danger of disappearing? Work in groups: Make a poster what have people done to tigers?What should(not)/can(not) we do to save tigers?On the leftOn the rightOther wild animals are in danger as well.HomeworkSs(A): Write a passage :How should we do to protect wild animals?
Ss(B): Remember the sentences about tigers.

教师寄语Dear class,Tigers are important to the environment, So are the other wild animals!
Have you ever thought ,if there is no animals left in the world someday,how will the human be?
So ,please remember : Animals are our friends!
Protecting the wild animals is to protect our's future!