冀教版八年级下册Unit 3 Animals Are Our FriendsLesson 17 Save the Tigers背景图课件ppt

这是一份冀教版八年级下册Unit 3 Animals Are Our FriendsLesson 17 Save the Tigers背景图课件ppt，共19页。PPT课件主要包含了 ，are等内容，欢迎下载使用。
Lessn 17　Save the Tigers
Unit 3 Animals Are Our Friends
Think Abut It
Where can yu usually see a tiger?
D yu think tigers need ur help? Why r why nt?
century centuries　
消失；失踪 appear
the number f…
at the tp f…
the number
In recent years in
●　　 at the beginning f 在……之初
[观察] She left here at the beginning f this mnth. 月初她离开了这儿。
[拓展] in the beginning 意为“起初，起先”，相当于at first。
[探究] at the beginning f 表示“________________”，其后常接表示________的词。beginning此处作名词，意为“开始”。
根据汉语意思完成句子这件事发生在21世纪初。The event happened ________ ________ ________ ________ the 21st century.
at the beginning f
● 　 At the beginning f the 20th century，the number f tigers in the wild was arund 100, 000. 在20世纪初期，野生老虎的数量大约是100000。
[辨析] the number f与a number f
Fill in the blanks.
1. _____________ students is abut twenty. (……的数量)2. _____________wrkers in the factry cme frm the cuntryside. (许多)
The number f
3.The number f the students in ur class ____( be ) fifty.4. A number f students in ur class ____ (be) frm China.5. The number f pages in this bk ____(be) 60.
2017·六盘水 The number f the students ________ ver 2，000 in ur schl.A. is　　　 B. areC. was D. were
【解析】考查主谓一致。the number f…意为“……的数量”，作主语时谓语动词用单数形式。故选A。
3. As frests disappear, tigers lse their hmes.随着森林的消失，老虎失去了它们的家园。as在句中作连词，引导状语从句，意为“随着，当……的时候”。As the sun rse, the fg disappeared.As she left the rm, she remembered that bk.
1. 他们班的学生数是40. ____________ ___________ ____________ the students in their class is 40.2. 动物对环境很重要。 Animals are very ______________ _____________ the envirnment.3. 老虎住在什么地方? _____________ ____________ tigers live?4. 很多动物正在消失。你知道为什么吗？ Many animals _____________ ___________. D yu knw why?5. 保护动物是我们的责任。 _____________ _____________ _____________ ur duty.