人教版九年级英语
Unit13 We’re trying to save the earth!
第2课时课件Section A (3a-3b)
Read the passage about sharks and complete the fact sheet below.
3a
Points in Para 1
hear of 听说
shark fin soup 鱼翅汤
in southern China= in the south of China 在中国南部地区
each time 每当…
a bowl of …一碗……
Many have heard of shark fin soup. This
famous and expensive dish is especially
popular in southern China. But do you realize
that you’re killing a whole shark each time
you enjoy a bowl of shark fin soup?
Many have 听说 鱼翅汤. This famous and expensive dish is especially popular 在中国的南部地区. But do you realize that you’re killing a whole shark 每当 you enjoy 一碗 shark fin soup?
When people catch sharks, they cut off their
fins and throw the shark back into the ocean.
This is not only cruel, but also harmful to the environment. Without a fin, a shark can no longer swim and slowly dies. Sharks are at the top of the food chain in the ocean’s ecosystem. If their numbers drop too low, it will bring danger to all ocean life.
Points in Para2
cut off 切掉
not only…but also 不仅，而且
be harmful to … 对……有害
without a fin 没有了鳍
no longer 不再
at the top of… 在……的顶部
the food chain 食物链
in the ocean’s ecosystem 在海洋生态系统中
danger 危险---dangerous 危险的
When people catch sharks, they 切掉 their
fins and throw the shark back into the ocean. This is 不仅 cruel, 而且 对……有害 the environment. 没有了 a fin, a shark can 不再 swim and slowly dies. Sharks are 在食物链的顶部 in the ocean’s 生态系统. If their numbers drop too low, it will bring 危险to all ocean life.
Many believe that sharks can never be endangered because they are the strongest in their food chain. But in fact, around 70 million sharks are caught and traded in this industry every year. The numbers of some kinds of sharks have fallen by over 90 percent in the last 20 to 30 years.
Points in Para2
endangered 濒临灭绝的
in fact 实际上
catch-caught-caught
industry 工业，产业，行业
fall-fell-fallen
over 90 percent 超过百分之九十
in the last 20 to 30 years 在过去的20到30年里 （用现在完成时）
Many believe that sharks can never be 濒临灭绝的 because they are the strongest in their food chain. But 实际上, around 70 million sharks are 捕捉 and traded in this 产业 every year. The numbers of some kinds of sharks have 在过去的20到30年下降了超过百分之九十.
Environmental protection groups around the world, such as WildAid and the WWF, are teaching the public about “finning”.
They have even asked governments to develop laws to stop the sale of shark’s fins. So far, no scientific studies have shown that shark’s fins are good for health, so why eat them? Help save the sharks!
Points in Para3
environment-environmental
environmental protection groups 环保组织
such as 例如
develop laws to stop the sale of shark fins 完善法律来组织预鱼鳍的销售
so far 到目前为止 （用现在完成时）
scientific studies 科学研究
show-showed-shown/showed
环境保护组织 around the world, 例如 WildAid and the WWF, are teaching the public about “finning”. They have even asked governments 完善法律来阻止鱼鳍的销售. 到目前为止, no 科学研究 have 表明 that shark’s fins are good for health, so why eat them? Help save the sharks!
Let’s learn some
language points
harmful 形容词，意为“有害的”。常构成短语
be harmful to “对……有害的”。
Staying up often is harmful to your health. 经常熬夜对你的健康有害。
【拓展】
harm 名词，意为“害处”。常用构成短语
do harm to “对……有害”，相当于be harmful to.
Too much smoking does harm to his health. = Too much smoking is harmful to his health. 吸烟过多对他的健康有害。
改为同义句。
Reading in the sun does harm to our eyes.
Reading in the sun ___ _____ _______ our eyes.
is harmful to
辨析：join, join in 和take part in
to
Will you join us in the discussion?
你参加我们的讨论吗？
She joined the Young Pioneers.
她加入了少先队。
Why didn't you join in the talk last night?
昨晚你为什么没参加座谈？
Did you take part in the sports meet?
你参加运动会了吗？
1. —Have you _____ a club?
—Yes, I’m in a swimming club and I often _____ the swimming training.
A. joined; take part in
B. joined; join
C. taken part in; join
D. taken part in; join in
2. —We’re going for a picnic. Would you like
to____ us?
—Why not? Let’s go!
A. attend B. join C. join in D. take part in
⑴ afford是动词，意为“买得起,担负得起”，通常与can, could, be able to连用,多用于否定句中。
They couldn’t afford $50 for a ticket. 他们拿不出50美元买一张票。
⑵ afford后面常跟带to的动词不定式。
We can’t afford to go abroad this summer. 今年夏天我们没有足够的钱出国。
例句：Miss Taylor never wastes money on anything too expensive, even though she can _____to. She has donated much of the money she saved to charities.
A. afford B. allow C. remind D. pay
1. Many people do not realize they are killing a
whole shark _____they enjoy a bowl of shark’s
fin soup.
2. Sharks are at the top of the food chain, ______
if their numbersdrop, the ocean’s ecosystem
will be in danger.
Read the passage again and fill in the blanks with the words in the box.
so
when
3b
Many think that sharks are too strong to be
endangered, _________ they are wrong.

_________there are no scientific studies to support this, a lot of people believe that shark fins are good for health.

5. Sharks may disappear one day ______ we do not do something to stop the sale of shark fins.
but
Although
If
II. 单项选择。
1. —Are you going to _____ any of the events?
—Yes. Maybe long jump and high jump.
A. take part in B. join
C. attend D. join in
2. I can’t afford ____ him an expensive birthday present.
A. to buy B. buying
C. for buying D. buy
3. —Remember to ____ the lights when you leave the room.
—OK. I will.
A. turn on B. turn down
C. turn up D. turn off
4. The girl always has some money to ___ snacks.
A. spend B. pay for
C. take D. cost

5. —Look! _____ boys are playing on the
playground.
—Yes. _____ them is about 200.
A. The number of; A number of
B. The number of; The number of
C. A number of; the number of
D. A number of; A number of
III. 根据汉语提示完成句子。
1. 我们必须采取行动来阻止他们。
We must _____ ______ to stop them.
2. 我从没听说过这个人。
I have never ____ ____ such a man.
3. 我们乐意尽力帮你摆脱困境。
We are glad to do what we can do ___ ___ ___.
4. 到目前为止，我已经交了二十个朋友。
____ ____, I have made twenty friends.
5. 实际上，她从没去过那儿。
____ ____, she has never been there.
In fact
take action
heard of
to help out
So far
对照 解疑 同行
water pollution
把……扔进
used to
参与
clean up
能，会
cut down
代替
be good for
有影响，起作用
litter/rubbish
coal
takeaway
ugly
wooden
对照 解疑 同行
instead of
D

C B B B C
bottom… full of
play a part in cleaning…up
is good for
cut down
used to go to bed
对照 解疑 同行
C
F
E
B
D
A
try/take action
shows/have shown
Without
turning off
trying/taking action
对照 解疑 同行
A
B

B C D D C
environmental
reusable
watch
help