外研版 (2019)必修 第一册Unit 5 Into the wild教学ppt课件

这是一份外研版 (2019)必修 第一册Unit 5 Into the wild教学ppt课件，共52页。PPT课件主要包含了目录页，red panda，III，sun，cut down，将下列句子补充完整，seeking，be sought，for，measuring等内容，欢迎下载使用。
Pre-reading
Language pints
Fast reading
Intensive reading
Pst-reading
mnarch butterfly
Siberian crane
Pre-reading: D yu knw these animals?
Atlantic salmn
killer whale
African lin
Pre-reading: Think and answer.
mnarch butterfly Siberian crane Atlantic salmn
red pandakiller whaleAfrican lin
Chse the animals that migrate.
Pre-reading: Think and answer.
Animal migratin refers t the mvement f a species frm ne habitat t anther in respnse t seasnal changes t the envirnment. Often cvering great distances and invlving huge numbers f animals, it can be fascinating t bserve. Migratin happens in all parts f the animal kingdm, frm fish and insects t birds, reptiles and mammals.
What d yu knw abut animal migratin?
Fast reading: Read quickly and answer the questins.
1. Why d the animals need t migrate? 2. What mystery have the scientists slved?3. Where are yu mst likely t find the passage?
1. Why d the animals need t migrate?
Because they migrate t find fd, seek a partner, r search fr warmer weather.
Fast reading: Read quickly and answer the questins.
2. What mystery have the scientists slved?
The scientists have slved the mystery f hw mnarch butterflies manage t travel a lng distance and find their way t their destinatin.
3. Where are yu mst likely t find the passage?
In a scientific research paper abut the mnarch butterfly’s migratin.
In a ppular nature magazine intrducing the mnarch butterfly.
In a travel leaflet encuraging peple t visit Nrth America.
Intensive reading: Read and fill in the blanks.
Read the text carefully. Cmplete the sentences with expressins frm the passage and use the sentences t cmplete the “cause-effect” flw charts.
Intensive reading: Find sme detailed infrmatin.
The mnarch butterfly is able t tell 1. _______________.Using these tw pieces f infrmatin, the mnarch butterfly determines 2. ______________.The mnarch butterfly measures 3. ________________ _____with its eyes.The mnarch butterfly reaches 4. __________________ ____________________.
the time f day
the way t g
the psitin f the
will spend the winter
the places where it
Humans 5. ______________ trees.The 6. _________________________________ where mnarchs can be fund is destryed.Humans use chemicals that 7. ______________ that mnarch caterpillars eat.The mnarch butterfly’s ppulatin 8. _______________________________ in the last few years.
natural envirnment f many places
kill the plants
has crashed
(by as much as 90%)
Pst-reading: Have a free talk.
What impresses yu mst abut the mnarch butterfly?What can peple d t help prtect the mnarch butterfly?
Language pints: Imprtant wrds
1. seek (seek → sught → sught) ① vt & vi 寻找,寻求,谋求,请求 seek (fr) sth. / sb. 寻找某物 / 某人 seek ne’s frtune 外出寻找发财机会,闯世界eg: If yu want t seek fr success, yu must wrk hard.
② v 试图，设法 seek t d sth = try t d sth 试图做某事，设法做某事eg: We are always seeking t imprve prductivity.
Thusands f peple squeezed int the building, ________ (seek) prtectin frm the rain. The answer t the questin must _________ (seek) elsewhere.We are seeking ____ the slutins t current prblems.
Language pints: Exercise
2. measure① vt & vi（长度）为；测量；衡量 measure... by... 用……来衡量…… be measured by / in 用……来衡量/计算
be measured
② n 计量单位；措施；尺寸 take measures t d sth 采取措施做…… make sth t sb’s measure 照某人的尺寸做某物eg:
Therefre, it’s high time we tk measures t prevent water frm being plluted.
The suit fits me well because it was made t my measure.
Sme villagers reprted a huge snake, __________ (measure) ver tw meters lng, was fund dead in a nearby cave.
“measure”作动词，表示“有……长 / 宽 / 高”时，为不及物动词，不用于被动和进行时态，若其短语作后置定语，要用现在分词形式。
3. determine vt & vi 确定，决定 determine t d sth 决心做某事 (表动作) be determined t d sth 决心做某事 (表心理状态) determine sb t d sth 使某人决心做某事
拓展: determinatin n 决心，决定
___________(determine) t give up smking, he threw away his remaining cigarettes.
过去分词作状语时，通常放在句首，并且用逗号与主句隔开。
4. survive vi 幸存，生存下来，比……活得长 vt 经历……之后还存在 survive sb by… 比某人活的长…… survive n sth 靠某物而生存下来 eg: She survivd her husband by ten years. 拓展：survival n 幸存者，残存物
He felt lucky t have survived frm the war.
“survive” 表示“从地震、火灾、事故等中幸存下来”时，为及物动词，不可接介词in或frm。
1. at certain times _____________________ 2. in search f _____________________ 3. millins f _____________________ 4. manage t d sth _____________________ 5. find ne’s way t _____________________ 6. find ut _____________________ 7. the slutin t... _____________________
Language pints: Imprtant lexical chunks
8. in truble _____________________ 9. in the last few years _____________________ 10. the number f... _____________________ 11. cut dwn _____________________ 12. lead t _____________________ 13. feed n _____________________
本句中的“that”是代词，用来特指前面所提到的名词。that作代词时，它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。
One f the mst wnderful migratins in nature is that f the Nrth American mnarch butterfly.
Language pints: Imprtant sentences
北美黑脉金斑蝶的迁徙是自然界最棒的迁徙之一。
1) I can’t lend my bike t yu, fr Tm is using it. 2) The ppulatin f China is larger than that f the UK.  
我的自行车不能借给你，因为Tm在用。(it指上文中的my bike，是同一个事物)
中国的人口数量比英国多。(that指上文中的ppulatin，同类但不同物)
句中的where the sun is in the sky为关系副词where引导的定语从句，修饰、限定先行词 the pint，where在定语从句中用作地点状语。
These tw pieces f infrmatin — the time f day and the pint where the sun is in the sky — allw the butterfly t determine the way t g.
黑脉金斑蝶依靠着“一天中的时间点和太阳的位置”可以确定要去的方向。
将下列含有“where”的句子译为汉语。
Eventually, it manages t reach the places where it will spend the winter.
最后，它成功到达了它要过冬的地方。
After the war, a new schl was put up where there had nce been a theatre.
战后，一所新学校在曾经是剧院的地方建立起来。
In many f the places where the butterfly can be fund, peple are destrying the natural envirnmnet.在很多可以找到黑脉金斑蝶的地方，人们正在破坏自然环境。
where引导定语从句，修饰the places
The slutin t the mystery f the mnarch’s amazing ability cmes at a time when it is in serius truble.
黑脉金斑蝶惊人能力的神秘面纱在它处于极度困境时被揭开了。
句中的when it is in serius truble为关系副词when引导的定语从句，修饰、限定先行词 a time，when在定语从句中用作时间状语。
将下列含有“when”的句子译为汉语。
如果这个做法起作用，黑脉金斑蝶的数量有望再次回升。
当我到学校时，校园里还是静悄悄的，我决定先去探寻一番。
when引导时间状语从句
Sadly, human activity is the main reasn why the number f mnarch butterflies is falling.
可悲的是，人类的活动是黑脉金斑蝶数量急剧下降的主要原因。
句中的why the number f mnarch butterflies is falling为关系副词why引导的定语从句，修饰、限定先行词 reasn，why可以换成fr which，在定语从句中用作原因状语。
将下列句子补充完整。汤姆来迟到的原因是因为他生病了。Tm came late fr the meeting. That was ________ he was ill.The reasn ________ Tm came late was ________ he was ill.
They cut dwn trees and use chemicals that kill the plants that mnarch caterpillars eat.
他们砍伐树木并且使用杀死黑脉金斑蝶幼虫吃的植物的化学剂。
本句中的两个that 均引导定语从句。其中，第一个that指代chemicals，在从句中作主语；第二个that指代plants，在从句中作eat的宾语，这时that也可省略。
Peple have been wrking tgether t recrd its migratin and make sure that there are enugh plants fr it t feed n.
人们一直都在共同努力记录它的迁徙并且确保这儿有足够的植物供它采食。
本句中t recrd its migratin作目的状语。that引导宾语从句，作make sure的宾语，这时that也可省略。
When asked why he went there, he said he was sent there ______ fra space flight.A. training B. being trained C. t have trained D. t be trained
The mre we knw abut this lvely creature, the greater the chance it will survive and keep its place in the natural wrld fr a lng time t cme.
我们对这种可爱的生物了解的越多，它存活下来并在未来很长一段时间里在自然界保有地位的几率也就越大。
句中的 the mre…, the mre… 是固定搭配，结构为：the + 比较级，the + 比较级，译为：越……，越……。
The mre I knw him, the mre I like him.The harder yu wrk, the better results yu’ll get.  
我越了解他就越喜欢他。
你学习越努力，成绩就会越好。