(共21张PPT)
Unit 5 Into the wild
Starting out Pand9
Understanding ideas
charity
monarch
monarch butterfly
Atlantic
whale
annual
migration
migrate
seek
n. 慈善机构，慈善团体
n. 君主，国王
黑脉金斑蝶
adj. 大西洋的
n. 鲸
adj. 一年一度的，每年的
n. 迁徙
v. 移栖，迁徙
v. 寻找，寻求
Words review
professor
measure
position
determine
eventually
solution
mystery
amazing
crash
n. 教授
v. 量，测量
n. 位置
v. 测定，确定
adv. 终于，最终
n. 解决，解决方法
n. 难以理解的事物，谜
adj. 惊人的，了不起的
v. 暴跌
Words review
per cent
destroy
chemical
caterpillar
creature
survive
effect
flow chart
accommodation
n. 百分比
v. 破坏，毁掉
n. 化学品
n. 毛虫（蝴蝶等昆虫的幼虫）
n. 生物，动物
v. 活下来，幸存
n. 影响，结果
流程图，作业图
n. 住处，工作场所
Words review
1. What are the most popular pets in the UK
2. What is the most important animal charity in the UK
1. What are the most popular pets in the UK
2. What is the most important animal charity in the
UK
The most popular pets in the UK are cats and dogs.
The most important animal charity is the RSPCA (the Royal Society for the Prevention of Cruelty to Animals).
Questions:
1. Do you like animals What animals do you like best
2. Which animal can be kept as a pet Have you got a pet
3. Why do you like the pet What does it bring to you
What are the relationships between the people and the animals
horseman and horse
(competition companion)
owner and livestock
blind people and guide dog (life assistant)
pet owner and pet
Look and choose the animals that migrate.
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√
√
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While-reading
What is the main idea of the passage
A. The monarch’s migration.
B. The reasons for monarch’s migration.
C. Mexico’s monarch.
The main idea of a passage can be found from its title, the topic sentence, or even the pictures.
para1 Many animals move from one place to another at certain times of the year. This annual movement is called migration. They migrate to find food, seek a partner, or in search of warmer weather. One of the most wonderful migrations in nature is that of the North American monarch butterfly.
Find out the topic sentence in each paragraph.
what
why
topic
How
to introduce the monarch’s migration.
para2
Every autumn, millions of these beautiful insects with fine black and orange wings begin a long and difficult journey. Somehow they manage to travel around 4,000 kilometres south and find their way to California or Mexico. However, until recently no one knew how they did this.
when
where
distance
the topic sentence
conclude by youeself
The time , distance and the destination of the monarch’s migration.
para3
A team of scientists led by Professor Eli Shlizerman at the University of Washington has now found the answer. They have found out that the monarch is able to tell the time of day. It uses its eyes to measure the position of the sun. These two pieces of information - the time of day and the point where the sun is in the sky - allow the butterfly to determine the way to go. Eventually, it manages to reach the places where it will spend the winter.
how
the topic sentence
conclude by youeself
The way of the monarch’s migration.
para4
The solution to the mystery of the monarch's amazing ability comes at a time when it is in serious trouble. Its population has crashed by as much as 90 percent in the last few years. Sadly, human activity is the main reason why the number of monarch butterflies is falling. In many of the places where the butterfly can be found, people are destroying the natural environment. They cut down trees and use chemicals that kill the plants that monarch caterpillars eat.
The serious trouble of the monarch.
the topic sentence
para5
The research on the monarch's behaviour has however led to a greater awareness of this creature. People have been working together to record its migration and make sure that there are enough plants for it to feed on. If this works,there may come a time when the number of monarch butterflies increases once again. The more we know about this lovely creature, the greater the chance it will survive and keep its place in the natural world for a long time to come.
the topic sentence
How to help the monarch get out of the trouble.
Choose where you are most likely to find the passage.
1 In a scientific research paper about the monarch butterfly’s
migration.
2 In a popular nature magazine introducing the monarch
butterfly.
3 In a travel leaflet encouraging people to visit North
America.
一本旅游手册
一篇科学研究论文
Expository writing 说明文
d
a. The monarch butterfly is able to tell_______________.
b. Using these two pieces of information, the monarch butterfly
determines _____________.
c. The monarch butterfly measures ____________________with
its eyes.
d. The monarch butterfly reaches __________________________
____________.
the time of day
the way to go
the position of the sun
the places where it will spend
a
c
b
the winter
cause-effect
Read and fill:
e. Humans _________ trees.
f. The __________________________________ where monarchs
can be found is destroyed.
g. Humans use chemicals that _______________ that monarch
caterpillars eat.
h. The monarch butterfly’s population ______________________
_________________________ in the last few years.
cut down
natural environment of many places
kill the plants
has crashed
(by as much as 90 per cent)
h
e
g
f
cause-effect
Read and fill:
Read Paragraph 5:
It is quite encouraging.
It is fairly complex.
It is very unacceptable.
It is rather useless.
What does the last paragraph imply about the research
鼓舞人心的
Think and share
What impresses you most about the monarch butterfly
It said, “Its population has crashed by as much as 90 per cent in the last few years” in the text. This gave me a huge shock. It’s high time that we should think
over about the cause and take
measures.
What can people do to help protect the monarch butterfly
Plant native milkweed species to feed on
Do not use chemicals that kill the plants as much as possible
Protect the natural environment
