Unit 3 Animals Are Our Friends Lesson17 Save the Tigers 课件(共14张PPT)

(共14张PPT)
冀教版八年级英语下册
Unit 3 Animals Are Our Friends
Lesson 17: Save the Tigers
My name start with a C and end with an L.
I live in the desert, a hard place to live. I can carry people and their goods (货物).
What am I
—— Camel
I. Learning aims:
Know about the words:
century, courage, brave, reason, kill,
cut (cut, cut); at the beginning of…,
drop to, food chain, in danger, cut down
II. Learning important & difficult points:
1) the number of 与a number of
2) in danger的用法
1.New words
century n. 世纪
courage n. 勇气；胆量
brave adj. 勇敢的；无畏的
reason n. 原因；动机；理由
cut v. 砍；切；剪；割
2. Read this passage ,then find out
some important phrases.
at the beginning of 在……之初
drop to 跌至；下降到
in balance 保持平衡
in danger 处于危险状态
cut down 把……砍到；减少
as well （除某事或某人外）还；也
At the beginning of the 20th century,
the number of tigers in the wild
was around 100,000. 在二十世纪
初期，野生老虎的数量大约是十万只。
the number of 意为“…….的数量”，
跟复数名词连用作主语时，中心词
是number，谓语动词要用单数。
a number of 表示“许多”，相当于
many,修饰可数名词复数。作主语时，
谓语动词用复数。number前可用
large, small 等修饰，表示程度。
e.g. The number of students in our
class is 50.
Quiz: A number of _________(student)
____(be)planting trees on the hill.
students
are
2. In recent years, tigers have been
in danger of disappearing. 在近
几年，老虎处于濒临灭绝的危险中。
in danger (of) 意为“处于（……）
危险之中。
e. g. You’re in danger of catching a cold.
Quiz：The passengers are______________
(处于危险状态)! Let’s go and help!
in danger
practicing
Fill in the blanks.
________________ 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 of
important to
in danger of
Animals are our friends.
Let’s love them and protect them!
Our world will be much more beautiful!
动物是我们的朋友。
让我们一起爱护它们吧！
我们的世界将会变得更美丽！