外研版 (2019)必修 第一冊(cè)Unit 5 Into the wild優(yōu)秀ppt課件

這是一份外研版 (2019)必修 第一冊(cè)Unit 5 Into the wild優(yōu)秀ppt課件，共55頁(yè)。PPT課件主要包含了migration，red panda，Talking， time， position，plants，reach，decreased，a c，c a等內(nèi)容，歡迎下載使用。
Unit 5Int the wild
T skim the passage by fcusing n key wrds t get the main ideaT understand the mnarch butterfly’s features and hw it migrates T knw why the number f mnarch butterflies falls and what peple shuld d t imprve the cnditin
Lk at the fllwing pictures.
Can yu use ne r tw wrds t describe their actin?
Animal migratin
Animal migratin refers t the mvement f a species (物種) frm ne habitat (棲息地) 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 (爬行動(dòng)物) and mammals (哺乳動(dòng)物).
Why d animals migrate? When d animals migrate? Can human activities influence n animal migratin? Hw?
Lk at the pictures and chse the animals that migrate.
mnarch butterfly
Siberian crane
Atlantic salmn
killer whale
African lin
The animals that migrate include mnarch butterfly, Siberian crane, Atlantic salmn, and sme types f killer whales.
Nw talk abut what yu knw abut animal migratin.
Enjy a vide abut Mnarch migratin.
The Mnarch’s Jurney
Read the passage and find ut what mystery the scientists have slved.
The scientists have slved the mystery f hw mnarch butterflies manage t travel a lng distance and find their way t their destinatin.
Chse where yu are 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.
Why d yu chse that answer?
Lk at the mind map f the passage.
Frm the arrangement f the passage, which parts d yu think are mre imprtant in the passage? Why?
paragraph 3, 4 and 5The writer uses lnger paragraphs t tell us mre infrmatin --- the mnarch butterfly’s migratin, truble and peple’s effrts t imprve its cnditins.
Fill in the blanks in the chart.
The research n the mnarch butterfly
The ________ f its migratin
Its ppulatin
（t be cntinued）
It can ________ its ideal place.
Peple are _________ the envirnment.The ________ were killed and there is n fd fr the mnarch caterpillars.
It has the ability t tell the _________.It can find ut the ________ f the sun.
The ppulatin f the mnarch has __________ by 90%.
Cmplete the sentences with expressins frm the passage. Then use the sentences t cmplete the “cause-effect” flw charts.
The mnarch butterfly is able t tell _____________.b. Using these tw pieces f infrmatin, the mnarch butterfly determines ____________.
the time f day
the way t g
c. The mnarch butterfly measures _____________________ with its eyes.d. The mnarch butterfly reaches __________________________________.
the psitin f the sun
the places where it will spend the winter
e. Humans _________ trees.f. The ________________________________ where mnarchs can be fund is destryed.g. Humans use chemicals that _____________ that mnarch caterpillars eat.h. The mnarch butterfly’s ppulatin ___________________________________ in the last few years.
natural envirnment f many places
kill the plants
has crashed (by as much as 90 per cent)
Match the causes and the effects.
1. The mnarch butterfly is able t tell the time f day.
2. Peple cut dwn trees and use chemicals.
3. Peple have researched the mnarch's behaviur.
4. There are enugh plants fr the mnarch caterpillars.
A. Peple have begun t pay attentin t the mnarch.
B. The ppulatin f the mnarch will increase.
C. It can determine where it shuld g.
D. Mnarch caterpillars dn't have enugh plants t eat.
Chse the right item frm the bx and make the summary cmplete.
human activity, range wings, in danger, increase, psitin, awareness
Every autumn millins f Nrth American mnarch butterflies use their beautiful black and 1. ___________ t fly 4,000 km suth t sunny Califrnia and Mexic fr the winter.
range wings
Until recently it was nt knwn that they fund their way by lking at the time f day and the 2. ________ f the sun in the sky. This knwledge cmes at a time when the mnarch is 3. ________. Ppulatins have drpped by 90%, mstly due t 4. _____________.
in danger
human activity
It has hwever led t a greater 5. __________ and peple are wrking tgether t imprve the mnarch's chances f survival. Hpefully their numbers will 6. __________ in the future.
1. What impresses yu mst abut the mnarch butterfly?2. What can peple d t help prtect the mnarch butterfly?
Tips: Students can discuss the questins with their grup members. Then ne student answers the questins, but allw thers t add up.
What ther animals d yu knw have similar cnditin t the mnarch butterfly? What d yu think peple shuld d t help them?
animal;its living habits;its habitat;the prblem it faces;hw the prblem happens;slutin
Tips fr expressing ideas
1. One f the mst wnderful migratins in nature is that f the Nrth American mnarch butterfly.
ne f + 名詞復(fù)數(shù)，謂語(yǔ)動(dòng)詞用單數(shù)，表示“……中之一”；that用來指代前面提到的內(nèi)容，所指代的名詞可以是可數(shù)名詞，也可以是不可數(shù)名詞。這一用法可以讓句子更加簡(jiǎn)潔，避免重復(fù)與累贅。
【語(yǔ)境應(yīng)用】給下列句子指出一處錯(cuò)誤。1) One f my favrite sprts are jgging in the mrning.2) Yu must ntice that ne f yur shrtcming is lack f patience.
改寫下面一句話，使句子變得更加簡(jiǎn)潔。The ppulatin f China is larger than the ppulatin f the UK.
that
2. Every autumn, millins f these beautiful insects with fine black and range wings begin a lng and difficult jurney. millins f, hundreds f, thusands f, billins f 等屬于概數(shù)詞，f后面接可數(shù)名詞復(fù)數(shù)，短語(yǔ)前面不可以加具體的數(shù)詞。 eg Millins f peple went back t their hmetwn at Spring Festival.
hundred / thusand / millin / billin用法：
hundred / thusand / millin / billin (單數(shù)形式)
hundreds / thusands / millins / billins (復(fù)數(shù)形式)
Tw hundred peple are enugh fr the wrk.
Billins f stars twinkled in the sky.
3. Smehw they manage t travel arund 4,000 kilmetres suth and find their way t Califrnia r Mexic. manage t d sth: t succeed in ding sth, especially sth. difficult 設(shè)法干成某事 eg We managed t get t the airprt in time. Hw did yu manage t persuade him?
try t d sth.: t make an effrt t d sth. 盡力去做某事（成功與否不確定）
A: The prblem is quite a challenge fr me, althugh I’ve _____ my best _________ (slve) it. I decide t give it up.B: Dn’t wrry. I can help.A: S glad t hear that. Please d have a try.B: (sme time later) Yes. I’ve ________________ (slve) it. Cme here. Let me shw yu hw I wrked it ut.
【語(yǔ)境應(yīng)用】用manage和try填寫下列對(duì)話，體會(huì)二者的區(qū)別。
tried t slve
managed t slve
4. It uses its eyes t measure the psitin f the sun. psitin n. the situatin that sb is in r the place where sb r sth is 位置；職位；狀態(tài) eg There must be a lt f peple in my psitin (處于我這種情況).
measure v. 1) t find the size, length, r amunt f sth量，測(cè)量; 2) t judge the imprtance, value, r true nature f sth 估量，判定eg The pnd measures abut tw metres acrss. It is difficult t measure the success f the campaign at this stage.
measure n. 1) 措施，方法；safety / emergency measures 安全/緊急措施 2) 量，程度；標(biāo)準(zhǔn)an accurate measure f ability 能力的準(zhǔn)確評(píng)判eg Is this test a gd measure f reading cmprehensin? 這種測(cè)試是判斷閱讀理解的好方法嗎？
【語(yǔ)境應(yīng)用】用measure的正確形式來翻譯下列句子。1) 他去量尺寸做新套服去了。2) 我們花了一上午量來量去，決定家具怎么擺。3) 我們必須采取強(qiáng)硬措施來解決該地區(qū)的犯罪。
He’s gne t be measured fr a new suit.
We spent the mrning measuring and deciding where the furniture wuld g.
We must take tugh measures t reduce crime in the area.
5. The slutin t the mystery f the mnarch’s amazing ability cmes at a time when it is in serius truble. the slutin t sth. ……的解決方法 常見的用介詞t的短語(yǔ)有： the key t sth. ……的鑰匙/關(guān)鍵所在 the answer t sth. ……的答案 the way t sth. ……的方法/道路 the entrance t sth. ……的入口
in (serius) truble : in an unpleasant, difficult r dangerus situatineg He is in serius truble and needs my help.“in+抽象名詞” 短語(yǔ)有：in danger, in debt (處于負(fù)債中), in despair (處于絕望中), in dubt, in need, in peace, in pwer, in silence, in shck等
6. It’s ppulatin has crashed by as much as 90 per cent in the last few years. ppulatin 人口，人口數(shù)量，作主語(yǔ)時(shí)謂語(yǔ)動(dòng)詞單復(fù)數(shù)根據(jù)意思來定。提問人口數(shù)量多少時(shí)只能用what，不能用hw many。 eg The ppulatin is increasing at abut 6% per year. (ppulatin當(dāng)做整體) One third f the wrld’s ppulatin cnsume (s) tw thirds f the resurces. What’s the ppulatin f China?
crash v. suddenly lse a lt 暴跌eg Share prices crashed t an all-time lw (前所未有的低記錄) yesterday.
crash v. t hit extremely hard 碰撞，撞擊； t lse very badly in a sprt潰敗，慘敗eg A track went ut f cntrl and crashed int the back f a bus. I crashed cmpletely in the first rund.
crash n. 碰撞；碰撞聲；暴跌；失??；奔潰
【語(yǔ)境應(yīng)用】指出下列句子中crash的意思和詞性。 The tree fell with a great crash. Files can be lst if the system suddenly crashes.3) A girl was serius hurt in the yesterday’s car crash.4) She went ut f the rm angrily and crashed the dr heavily behind her.
7. Sadly, human activity is the main reasn why the number f mnarch butterflies is falling. the number f ……的數(shù)量中心詞是number, 在句中作主語(yǔ)時(shí)謂語(yǔ)動(dòng)詞單復(fù)數(shù)和number一致。
a number f +n. [pl]，許多，大量可用large或small來修飾。作主語(yǔ)時(shí)，謂語(yǔ)動(dòng)詞用復(fù)數(shù)。
【語(yǔ)境應(yīng)用】用be的恰當(dāng)形式填空。Nwadays, a large number f animals ______ (be) in danger because f human activities. Gvernment and scientists have dne a lt t prtect them. S, the future is bright. We d believe that the number f sme animals _____ (be) increasing day by day.
8. They cut dwn trees and use chemicals that kill the plants that mnarch caterpillars eat. 本句中包含兩個(gè)由關(guān)系代詞that引導(dǎo)的定語(yǔ)從句。第一個(gè)定語(yǔ)從句中，先行詞是chemicals，關(guān)系代詞that在定語(yǔ)從句中作主語(yǔ)，可用which替換；在第二個(gè)定語(yǔ)從句中，先行詞是plants，that在定語(yǔ)從句中作賓語(yǔ)，可省略。
9. 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.
the +比較級(jí) ……, the +比較級(jí) 越…….越……(前者是條件，后者是結(jié)果)eg The mre I knw him, the mre I like him. The harder yu wrk, the luckier yu will be.
對(duì)比另一種形容詞/副詞比較級(jí)用法：比較級(jí)+ and +比較級(jí)，意為“越來越……”eg China is becming strnger and strnger.
【語(yǔ)境應(yīng)用】翻譯下列句子。 中國(guó)人民的生活越來越好。2) 我對(duì)這個(gè)城市了解的越多，就越喜歡它。
The lives f Chinese are better and better.
The mre I knw abut the city, the mre I lve it.
lvely adj. pleasant r enjyable 可愛的，令人愉快的英語(yǔ)中有些以“-ly”結(jié)尾的詞是形容詞，常見的有：friendly，likely (很可能的)，deadly(致命的)，lively(活潑的)， lnely (孤獨(dú)的，荒涼的)，ugly，silly，daily，weekly， mnthly， yearly等。其中daily， weekly， mnthly，yearly也可以用作副詞。
survive v. t cntinue t live after sth bad happened1) Of the six peple injured in the crash, nly tw survived.2) The cmpany managed t survive the ecnmic crisis.3) She survived her husband by ten years.4) I can’t survive n 400 yuan a mnth.
【語(yǔ)境應(yīng)用】指出下列句子中survive的意思。
Write a shrt summary based n The Mnarch’s Jurney. Try t use as many new wrds and key expressins as yu can. Yur summary shuld nt be less than 100 wrds.