七年级下册unit 8 I love nature! Lesson 4 It's time to protect them! 课件(共25张PPT,内嵌音频)

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七年级下册unit 8 I love nature! Lesson 4 It's time to protect them! 课件(共25张PPT,内嵌音频)

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(共25张PPT)
UNIT 8 I love nature!
Lesson 4 It's time to protect them!
★学习目标:
掌握本课重点词汇、短语和句型,能熟练的介绍濒危野生动物。
通过学习,引导学生思考人与自然的关系,激发环保与保护野生动物的责任感。
Warming up
Protect wildlife, protect our home.
Reading
Match the words with the pictures. Do you know which animals are endangered Talk with your partner.
tiger
snow leopard
blue whale
wolf
giant panda
Asian elephant
老虎
雪豹
蓝鲸

大熊猫
亚洲象
Loss of wildlife can happen naturally. Dinosaurs, for example, died out about 65 million years ago.
Loss of wildlife can happen because of human activity. Expanding housing, industry, and farming harms wildlife.
A study from 2016 shows that nearly 72% of the endangered animals are at risk because of hunting and fishing. Nearly 62% are endangered by farming, 35% by city development, and 27% by diseases.
Read the passage and answer the question.
自然地
恐龙
伤害;损害
风险;危险
Read the passage and answer the question.
For example, long-nosed monkeys live in Southeast Asia. They are famous for their large noses. But now, they become endangered because of habitat loss, pollution, and hunting.
长鼻猴
东南
栖息地
污染
狩猎;打猎
Read the passage and answer the question.
What can you find in the 2016 study about the loss of wildlife
___________________________________
___________________________________
The loss of wildlife happens mainly because of human activities.
Language points
loss: n.丧失;损失;去世
the loss of...:…… 的丧失/消失
例:The loss of water is dangerous.(水的流失是危险的。)
拓展:
at a loss: 不知所措,困惑
例:She was at a loss about what to do.(她不知道该做什么。)
a sense of loss: 失落感
例:I feel a sense of loss when my friend leaves.(朋友离开时,我有种失落感。)
Loss of wildlife can happen naturally.
野生动物的消失可能是自然发生的。
for example 例如,比如
表示举例,可放句首 / 句中 / 句末,常用逗号隔开。
die out:灭绝、逐渐消失
拓展:such as / for example:
短语 相同点 不同点
such as 均表示部分列举,列举对象通常为同类的人或事物。 常位于列举对象之前,列举对象可以是名词(短语)或动词-ing(短语)。
for example 常用逗号与列举对象隔开,可位于列举对象之前或之后。列举对象可以是名词(短语)、动词-ing(短语)等,还可以是句子。
Dinosaurs, for example, died out about 65 million years ago.
例如,恐龙大约在6500万年前灭绝了。
harm的多重含义:
①作名词:伤害;损害
do harm to sth.: 对…… 有害
例:Smoking does harm to your health.(吸烟对健康有害。)
②作动词:伤害;损害;危害
harm sb./sth.: 伤害某人/物
例:Don’t harm the animals.(不要伤害动物。)
harmful:adj. 有害的
be harmful to… 对…… 有害
例:Smoking is harmful to health.(吸烟对健康有害。)
Expanding housing, industry, and farming harms wildlife.
扩大住房、工业和农业会危害野生动物。
risk的多重含义:
①[n.]:危险;风险
at risk: 处于危险之中
例:Many animals are at risk.(许多动物处于危险之中。)
take risks/take a risk:冒险
例:Don’t take risks in the street.(不要在街上冒险。)
the risk of...: ……的风险
例:Fast food raises the risk of being fat.(快餐会增加发胖的风险。)
A study from 2016 shows that nearly 72 % of the endangered animals
are at risk because of hunting and fishing.
2016年的一项研究表明,近72%的濒危动物正因狩猎和捕鱼而面临风险。
risk的多重含义:
②[v.]:冒……的危险;冒险做;使冒风险
risk one’s life: 冒着生命危险
例:Many firefighters risk their lives every day.(许多消防员每天都
冒着生命危险。)
risk doing sth.:冒险做某事
例:Don’t risk climbing the tall tree.(不要冒险爬那棵高树。)
A study from 2016 shows that nearly 72 % of the endangered animals
are at risk because of hunting and fishing.
2016年的一项研究表明,近72%的濒危动物正因狩猎和捕鱼而面临风险。
be famous for: 因……而著名
拓展:be famous as / be famous for / be famous to
They are famous for their large noses.
他们以大鼻子而闻名。
be famous for 因……而出名 后接原因(事物/特点) 例:Hangzhou is famous for West Lake.(杭州因西湖而出名。)
be famous as 作为……而出名 后接身份/职业 例:He is famous as a writer.
(他作为一名作家而出名。)
be famous to 为……所熟知 后接人群 例:This song is famous to young people.(这首歌为年轻人所熟知。)
become + 形容词:变得......
become是变化类系动词,后接形容词作表语,(例:become tired 变累;become famous 变得出名)。
because of:由于(表原因,不能接句子)
拓展:because 与 because of:
But now, they become endangered because of habitat loss,pollution, and hunting.
但现在,由于栖息地丧失、污染和捕猎,它们已濒临灭绝。
because 连词 后只能接句子。 例:We stay at home because it rains.
因为下雨,我们待在家里。
because of 介词短语 后可接名词/代词/动名词 (doing) 例:We stay at home because of the rain.
因为下雨,我们待在家里。
Read the passage again and tick the reasons mentioned for the loss of wildlife.
hunting fishing littering
fights between animals city development
diseases air pollution farming






Search the internet and find more information about long-nosed monkeys to complete the card.
Name: Proboscis monkey
Habitat: Southeast Asia
Foods: __________________________
Characteristics: ___________________
___________________
Living situation:
extinct endangered
Protection: _______________________
_______________________
leaves , fruits, seeds, etc.
long noses , reddish-brown fur, long tails
make laws, build natural reserves

Work in pairs. Find information about an endangered species. Write an introduction to it.
Useful expressions
It gets its name from...
It lives in...
Its population is...
Exercise
根据汉语意思完成句子
1.这座古老建筑有倒塌的危险。
The old building is ________________ falling.
2.河北人文信息秦皇岛以北戴河而著名。
Qinhuangdao __________________ Beidaihe River.
3.他因为腿不方便而行走缓慢。
He walked slowly ___________________ his bad leg.
is famous for
because of
at risk of
根据括号所给内容填空
1. His pet dog ____________ (die) and he was sad for a long time.
2. There is a new _____________ (house) estate round the corner of the street.
3. Because of the __________ (lose) of the map, they didn't know where to go.
4. Trees grow _____________ (natural) in the forest.
housing
loss
died
naturally
Homework
★Homework
Write an article introducing wildlife with the topic of "Protecting Wildlife".
Review the key sentence patterns and vocabulary learned in this lesson.

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