資源簡介

(共29張PPT)
Understanding ideas P50-52
新外研版Book 1
Unit 5 Into the wild
Pre-reading
What does the video mainly talk about
It talks about monarch butterflies' amazing migration to Mexico.
Read and think:
Do you know the names of these animals
monarch butterfly
Siberian crane
red panda
Atlantic salmon
Killer whale
African lion
Look and choose the animals that migrate.
monarch butterfly
Siberian crane
red panda
Atlantic salmon
Killer whale
African lion
√
√
√
√
What do you know about animal migration
Animals that migrate
Time of animal migration
Reasons for animal migration
Influences of human activities
on animal migration
animal migration
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.
Read the passage and find out what mystery the scientists have solved.
The scientists have solved the mystery of how monarch butterflies manage to travel a long distance and find their way to their destination.
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.
d
Read the passage carefully and do Activity 4.
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
the way to go
the position of
the places where
a
day
the sun
it will spend the winter
c
b
Read the passage carefully and do Activity 4.
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
After-reading
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
Language points P50-51
新外研版Book 1
Unit 5 Into the wild
課文回顧：
1. migrate:(of an animal, typically a bird or fish) move from one region or habitat to another according to the seasons. v. 遷徙
migration n. 遷移
migrant n. 候鳥；移居者
例：秋天來了，鳥兒往南飛了。
As autumn arrives, the birds
_______ south.
They migrate to find food, seek a partner, or in search of warmer weather.
1
句意：動物為了覓食、尋找配偶或溫暖的環境而遷徙。
migrate
2. in search of : 搜尋，尋找
例：他們去澳大利亞淘金。
They went out to Australia __________ gold．
They migrate to find food, seek a partner, or in search of warmer weather.
1
句意：動物為了覓食、尋找配偶或溫暖的環境而遷徙。
We are in search of a typist．
我們在招聘一名打字員。
The prospecting team traversed far and wide in search of mineral deposits．
地質勘探隊為尋找礦藏走遍四面八方。
in search of
該句中that指代the migration, that用來指代前面提到的內容，可以指代名詞單數或者不可數名詞。
例：我電腦的顯示器比我爸電腦的顯示器好。
The monitor of my computer is better than ____ of my dad's.
One of the most wonderful migrations in nature is that of the North American monarch butterfly.
2
句意：自然界最為壯觀的遷徙之一就是北美洲黑脈金斑蝶的遷徙。
The population of China is larger than that of the UK.中國的人口數量比英國多。
that
1. manage: If you manage to do something, especially something difficult, you succeed in doing it. v. 設法做到
例: 我無法知道他是如何找到我們的。
How he _________________ us is beyond us.
Somehow they managed to travel around 4,000 kilometers south and find their way to California or Mexico.
3
句意：無論怎樣，它們總是能夠完成約4000公里的南行旅程，成功到達加利福尼亞州或墨西哥。
managed to find
2. find one's way: (因自然或環境的力量)來到某處；流入、進入；找到解決辦法；
推開人群擠過去（=push one's way）；
找到路（反義詞為：lose one's way）。
例: 那條河流入大海。
The river ___________ to the sea.
Somehow they managed to travel around 4,000 kilometers south and find their way to California or Mexico.
3
句意：無論怎樣，它們總是能夠完成約4000公里的南行旅程，成功到達加利福尼亞州或墨西哥。
finds its way
1. determine: firmly decide. v.決定
determination n. 決心、果斷
例: 他并不比她有更大的權力來決定他們的錢該怎么花。
He has no greater right than her to __________ how their money should be spent.
These two pieces of information--- the time of day and the point where the sun is in the sky ---allows the butterfly to determine the way to go.
4
句意：這兩條信息——一天中的時刻和太陽在天空中的位置——讓黑脈金斑蝶能夠判定前進方向，最終成功抵達過冬的地點。
determine
2. allow sb to do sth 允許某人做某事
allow for sth 斟酌[情形等] ,考慮,體諒
After some hesitation, he agreed to allow me to take the course.
稍稍猶豫之后，他同意讓我修這門課。
We must allow for delays caused by bad weather.
我們必須考慮到因壞天氣所造成的延誤。
These two pieces of information--- the time of day and the point where the sun is in the sky ---allows the butterfly to determine the way to go.
4
crash: a population crash is a decline in the number of individual members in a population, species or group of organisms. v. 銳減 crash into 闖入；撞到……上
a plane crash 飛機失事（n. 墜毀）
例：如果整個歐洲人口銳減，那么出生的嬰兒就很少。
If the population _____ across Europe, we will have fewer babies.
Its population has crashed by as much as 90% in the last few years.
5
句意：其數量在近年內減少了百分之九十之多。
crash
【句法分析】這四個句子都含有定語從句。在第一句中，when 是關系副詞，代替先行詞a time； 第二句中，why 是關系副詞，代替先行詞the main reason； 第三句中，where 是關系副詞，代替the places； 第四句中，that 是關系代詞，第一個指代chemicals, 第二個指代the plants。
The solution to the mystery of the monarch's amazing ability comes at a time when it is in serious trouble.
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.
6
【應用示例】
1. I still remember the time when I first became a college student.
我還仍然能記得我第一次成為大學生的時候。
2. This is the place where we met ten years ago.
這是我們十年前見面的地方。
3. This is the reason why he suddenly
disappeared.
這就是他突然消失的原因。
4. Where is the book that I bought yesterday
我昨天買的書哪里去了？
【小試牛刀】
I’d like to live in a town ______ there are not too many cars.
Winter is the season __________ many animals sleep.
I can’t think ________ anyone would do that.
It was so quiet in the mountains _________ the bus stopped.
She told me about a place ________ there are thousands of butterflies.
I wish I knew _______ I failed my exams.
where
when
why
when
where
why
awareness: knowing sth exists and is important; being interested in sth.n. 意識，認識
aware adj. 知道的,注意到的,覺察的
be aware of 知道；了解
例：重要的是學生懂得如何使用互聯網。
It is important that students develop an
__________ of how the Internet can be used.
The research on the monarch's behaviour has however led to a greater awareness of this creature.
7
句意：不過，對黑脈金斑蝶行為的研究也使得人們對這種生物有了更多的了解。
awareness
例：如果你先上船，給我留個位置。
__________ for me if you reach the boat first.
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.
8
句意：我們對這種迷人的生物了解越多，它們在自然界中得以長久生存并保持其位置的可能性就越大。
Keep a place
1. keep one's place 占據位置
例：知道得越多，越會體會到自己知道得越少。
________ learned a man is, _______ you will
realize how little you know.
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.
8
句意：我們對這種迷人的生物了解越多，它們在自然界中得以長久生存并保持其位置的可能性就越大。
2. the more..., the more...是固定搭配，“越……，就越……”。
The more
the more
Thank you!

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