(共52张PPT)
Unit 5
Into the wild
Watch a video and guess what the animals are doing.
They are migrating.
Enjoy a video about Monarch migration.
The Monarch’s Journey
1.Tounderstandthe whole passage and get the main idea.2. Toretell（复述）the general idea of the passage.3.Toraise awarenessof protecting animals and environment.Learning AimsPage /Read the passagequicklyandmatchthe main ideas with each part.B.Monarch'strouble and causesA.Measuresto protect monarch butterflyC.Definition（定义）about migrationPara.1Para.4Para.2-3Para.5D.IntroduceMonach 's migrationFast-readingReasonsMeasuresIntroductionDefinition1. What 's the migration ReadPara.1carefullyand answer the following questions.Many animals movefrom one place to anotheratcertain timesof the year.Thisannualmovementis called migration.Carefulreading2．According to Para. 1, animals migrate for many reasons except ________．
A．finding food
B．finding a partner
C．enjoying beautiful scenery
D．searching of warm weather
Read paras.2-3 carefully and answer the questions.1.What can we learn about monarch butterflies from paragraph 2 A. Their migration begins in summer.B. They can reach their destination easily.C. They manage to find their way to Washington.D. Their migration puzzled scientists from some time.Part 22. How does the monarch know
the position of the sun
A. By using its eyes.
B. Through its amazing wings.
C. Through its sharp hearing ability.
D. By measuring the height above the ground.
3．What mystery the scientists have solved
A．Why monarch butterflies migrate.
B．Where monarch butterflies spend the winter.
C．When monarch butterflies change their directions of migration.
D．How monarch butterflies succeed in migrating.
Para.4the reasonshuman activityReadpara.4and answer the question.1.For the butterflies , what caused them to crash destory the natural environmentcut down treesuse chemicalsWhat is the author's purpose in writing the text A. To show people's concern for the monarch.B. To discuss the monarch's ability to migrate.C. To raisepublic awareness of saving the monarch.D. To praise people's efforts to protect the monarch.Para. 5
Choose where you are most likely to find the passage.
In a scientific research paper about the monarch butterfly’s migration.
In a popular nature magazine introducing the monarch butterfly.
In a travel leaflet encouraging people to visit North America.
Post-reading
What measures can we take to protect the monarch butterflies Think & shareUse less chemicals and plant more trees.Protect the natural environment.Homework1.Retellthe passage again2.search more informationabout animal migrationon the internet.Thanks!Complete the sentences with expressions from the passage. Then use the sentences to complete the “cause-effect” flow charts.
The monarch butterfly is able to tell
_____________.
b. Using these two pieces of information, the monarch butterfly determines
____________.
the time of day
the way to go
c. The monarch butterfly measures
_____________________ with its eyes.
d. The monarch butterfly reaches
__________________________________.
the position of the sun
the places where it will spend the winter
a / c
c / a
b
d
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
g / e
f
Match the causes and the effects.
1. The monarch butterfly is able to tell the time of day.
2. People cut down trees and use chemicals.
3. People have researched the monarch's behaviour.
4. There are enough plants for the monarch caterpillars.
A. People have begun to pay attention to the monarch.
B. The population of the monarch will increase.
C. It can determine where it should go.
D. Monarch caterpillars don't have enough plants to eat.
Choose the right item from the box and make the summary complete.
human activity, orange wings, in danger, increase, position, awareness
Every autumn millions of North American monarch butterflies use their beautiful black and 1. ___________ to fly 4,000 km south to sunny California and Mexico for the winter.
orange wings
Until recently it was not known that they found their way by looking at the time of day and the 2. ________ of the sun in the sky. This knowledge comes at a time when the monarch is 3. ________. Populations have dropped by 90%, mostly due to 4. _____________.
human activity, orange wings, in danger, increase, position, awareness
position
in danger
human activity
It has however led to a greater 5. __________ and people are working together to improve the monarch's chances of survival. Hopefully their numbers will 6. __________ in the future.
awareness
increase
human activity, orange wings, in danger, increase, position, awareness
1. What impresses you most about the monarch butterfly
2. What can people do to help protect the monarch butterfly
Tips: Students can discuss the questions with their group members. Then one student answers the questions, but allow others to add up.
What other animals do you know have similar condition to the monarch butterfly What do you think people should do to help them
animal;
its living habits;
its habitat;
the problem it faces;
how the problem happens;
solution
Tips for expressing ideas
1. One of the most wonderful migrations in nature is that of the North American monarch butterfly.
one of + 名词复数，谓语动词用单数，表示“……中之一”；
that用来指代前面提到的内容，所指代的名词可以是可数名词，也可以是不可数名词。这一用法可以让句子更加简洁，避免重复与累赘。
【语境应用】给下列句子指出一处错误。
1) One of my favorite sports are jogging in the morning.
2) You must notice that one of your shortcoming is lack of patience.
is
shortcomings
改写下面一句话，使句子变得更加简洁。
The population of China is larger than
the population of the UK.
that
2. Every autumn, millions of these beautiful insects with fine black and orange wings begin a long and difficult journey.
millions of, hundreds of, thousands of, billions of 等属于概数词，of后面接可数名词复数，短语前面不可以加具体的数词。
eg Millions of people went back to their
hometown at Spring Festival.
【拓展】
hundred / thousand / million / billion用法：
具体的
数词
+
hundred / thousand /
million / billion (单数形式)
hundreds / thousands /
millions / billions (复数形式)
+
of+ n.
Two hundred people are enough for the work.
Billions of stars twinkled in the sky.
3. Somehow they manage to travel around 4,000 kilometres south and find their way to California or Mexico.
manage to do sth: to succeed in doing sth, especially sth. difficult 设法干成某事
eg We managed to get to the airport in time.
How did you manage to persuade him
辨析
try to do sth.: to make an effort to do sth. 尽力去做某事（成功与否不确定）
A: The problem is quite a challenge for me,
although I’ve _____ my best _________
(solve) it. I decide to give it up.
B: Don’t worry. I can help.
A: So glad to hear that. Please do have a try.
B: (some time later) Yes. I’ve
________________ (solve) e here.
Let me show you how I worked it out.
【语境应用】用manage和try填写下列对话，体会二者的区别。
tried to solve
managed to solve
4. It uses its eyes to measure the position of
the sun.
position n. the situation that sb is in or the place where sb or sth is 位置；职位；状态
eg There must be a lot of people in my position (处于我这种情况).
measure v. 1) to find the size, length, or amount of sth量，测量;
2) to judge the importance, value, or true nature of sth 估量，判定
eg The pond measures about two metres across.
It is difficult to measure the success of the campaign at this stage.
【拓展】
measure n. 1) 措施，方法；
safety / emergency measures
安全/紧急措施
2) 量，程度；标准
an accurate measure of ability
能力的准确评判
eg Is this test a good measure of reading comprehension 这种测试是判断阅读理解的好方法吗？
【语境应用】用measure的正确形式来翻译下列句子。
1) 他去量尺寸做新套服去了。
2) 我们花了一上午量来量去，决定家具怎么摆。
3) 我们必须采取强硬措施来解决该地区的犯罪。
He’s gone to be measured for a new suit.
We spent the morning measuring and deciding where the furniture would go.
We must take tough measures to reduce crime in the area.
5. The solution to the mystery of the monarch’s amazing ability comes at a time when it is in serious trouble.
the solution to sth. ……的解决方法
常见的用介词to的短语有：
the key to sth. ……的钥匙/关键所在
the answer to sth. ……的答案
the way to sth. ……的方法/道路
the entrance to sth. ……的入口
in (serious) trouble : in an unpleasant, difficult or dangerous situation
eg He is in serious trouble and needs my
help.
“in+抽象名词” 短语有：
in danger, in debt (处于负债中), in despair (处于绝望中), in doubt, in need, in peace,
in power, in silence, in shock等
6. It’s population has crashed by as much as 90 per cent in the last few years.
population 人口，人口数量，作主语时谓语动词单复数根据意思来定。提问人口数量多少时只能用what，不能用how many。
eg The population is increasing at about
6% per year. (population当做整体)
One third of the world’s population
consume (s) two thirds of the resources.
What’s the population of China
crash v. suddenly lose a lot 暴跌
eg Share prices crashed to an all-time low (前所未有的低记录) yesterday.
【拓展】
crash v. to hit extremely hard 碰撞，撞击；
to lose very badly in a sport溃败，惨败
eg A track went out of control and crashed into the back of a bus.
I crashed completely in the first round.
crash n. 碰撞；碰撞声；暴跌；失败；奔溃
【语境应用】指出下列句子中crash的意思和词性。
The tree fell with a great crash.
Files can be lost if the system suddenly
crashes.
3) A girl was serious hurt in the yesterday’s
car crash.
4) She went out of the room angrily and
crashed the door heavily behind her.
n. 破裂声
v. 奔溃
n. 撞车
v. 猛撞，碰撞
7. Sadly, human activity is the main reason why the number of monarch butterflies is falling.
the number of ……的数量中心词是number, 在句中作主语时谓语动词单复数和number一致。
【拓展】
a number of +n. [pl]，许多，大量
可用large或small来修饰。作主语时，谓语动词用复数。
【语境应用】用be的恰当形式填空。
Nowadays, a large number of animals ______ (be) in danger because of human activities. Government and scientists have done a lot to protect them. So, the future is bright. We do believe that the number of some animals _____ (be) increasing day by day.
are
is
8. They cut down trees and use chemicals that kill the plants that monarch caterpillars eat.
本句中包含两个由关系代词that引导的定语从句。第一个定语从句中，先行词是chemicals，关系代词that在定语从句中作主语，可用which替换；在第二个定语从句中，先行词是plants，that在定语从句中作宾语，可省略。
9. 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 +比较级 ……, the +比较级
越…….越……(前者是条件，后者是结果)
eg The more I know him, the more I like
him.
The harder you work, the luckier you
will be.
【拓展】
对比另一种形容词/副词比较级用法：
比较级+ and +比较级，意为“越来越……”
eg China is becoming stronger and stronger.
【语境应用】翻译下列句子。
中国人民的生活越来越好。
2) 我对这个城市了解的越多，就越喜欢它。
The lives of Chinese are better and better.
The more I know about the city, the more I love it.
lovely adj. pleasant or enjoyable 可爱的，令人愉快的
英语中有些以“-ly”结尾的词是形容词，常见的有：friendly，likely (很可能的)，deadly(致命的)，lively(活泼的)， lonely (孤独的，荒凉的)，ugly，silly，daily，weekly， monthly， yearly等。
其中daily， weekly， monthly，yearly也可以用作副词。
survive v. to continue to live after sth bad happened
1) Of the six people injured in the crash, only two survived.
2) The company managed to survive the economic crisis.
3) She survived her husband by ten years.
4) I can’t survive on 400 yuan a month.
【语境应用】指出下列句子中survive的意思。
存活，活下来
幸存，渡过难关
比……活的时间长
生存，活下来
Write a short summary based on The Monarch’s Journey. Try to use as many new words and key expressions as you can. Your summary should not be less than 100 words.
