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 尋找,尋求,謀求,請求 seek (fr) sth. / sb. 尋找某物 / 某人 seek ne’s frtune 外出尋找發(fā)財機(jī)會,闖世界eg: If yu want t seek fr success, yu must wrk hard.
② v 試圖,設(shè)法 seek t d sth = try t d sth 試圖做某事,設(shè)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(長度)為;測量;衡量 measure... by... 用……來衡量…… be measured by / in 用……來衡量/計算
be measured
② n 計量單位;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”作動詞,表示“有……長 / 寬 / 高”時,為不及物動詞,不用于被動和進(jìn)行時態(tài),若其短語作后置定語,要用現(xiàn)在分詞形式。
3. determine vt & vi 確定,決定 determine t d sth 決心做某事 (表動作) be determined t d sth 決心做某事 (表心理狀態(tài)) determine sb t d sth 使某人決心做某事
拓展: determinatin n 決心,決定
___________(determine) t give up smking, he threw away his remaining cigarettes.
過去分詞作狀語時,通常放在句首,并且用逗號與主句隔開。
4. survive vi 幸存,生存下來,比……活得長 vt 經(jīng)歷……之后還存在 survive sb by… 比某人活的長…… survive n sth 靠某物而生存下來 eg: She survivd her husband by ten years. 拓展:survival n 幸存者,殘存物
He felt lucky t have survived frm the war.
“survive” 表示“從地震、火災(zāi)、事故等中幸存下來”時,為及物動詞,不可接介詞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”是代詞,用來特指前面所提到的名詞。that作代詞時,它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潔,避免重復(fù)與累贅。
One f the mst wnderful migratins in nature is that f the Nrth American mnarch butterfly.
Language pints: Imprtant sentences
北美黑脈金斑蝶的遷徙是自然界最棒的遷徙之一。
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. ?
我的自行車不能借給你,因?yàn)門m在用。(it指上文中的my bike,是同一個事物)
中國的人口數(shù)量比英國多。(that指上文中的ppulatin,同類但不同物)
句中的where the sun is in the sky為關(guān)系副詞where引導(dǎo)的定語從句,修飾、限定先行詞 the pint,where在定語從句中用作地點(diǎn)狀語。
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.
黑脈金斑蝶依靠著“一天中的時間點(diǎn)和太陽的位置”可以確定要去的方向。
將下列含有“where”的句子譯為漢語。
Eventually, it manages t reach the places where it will spend the winter.
最后,它成功到達(dá)了它要過冬的地方。
After the war, a new schl was put up where there had nce been a theatre.
戰(zhàn)后,一所新學(xué)校在曾經(jīng)是劇院的地方建立起來。
In many f the places where the butterfly can be fund, peple are destrying the natural envirnmnet.在很多可以找到黑脈金斑蝶的地方,人們正在破壞自然環(huán)境。
where引導(dǎo)定語從句,修飾the places
The slutin t the mystery f the mnarch’s amazing ability cmes at a time when it is in serius truble.
黑脈金斑蝶驚人能力的神秘面紗在它處于極度困境時被揭開了。
句中的when it is in serius truble為關(guān)系副詞when引導(dǎo)的定語從句,修飾、限定先行詞 a time,when在定語從句中用作時間狀語。
將下列含有“when”的句子譯為漢語。
如果這個做法起作用,黑脈金斑蝶的數(shù)量有望再次回升。
當(dāng)我到學(xué)校時,校園里還是靜悄悄的,我決定先去探尋一番。
when引導(dǎo)時間狀語從句
Sadly, human activity is the main reasn why the number f mnarch butterflies is falling.
可悲的是,人類的活動是黑脈金斑蝶數(shù)量急劇下降的主要原因。
句中的why the number f mnarch butterflies is falling為關(guān)系副詞why引導(dǎo)的定語從句,修飾、限定先行詞 reasn,why可以換成fr which,在定語從句中用作原因狀語。
將下列句子補(bǔ)充完整。湯姆來遲到的原因是因?yàn)樗×?。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.
他們砍伐樹木并且使用殺死黑脈金斑蝶幼蟲吃的植物的化學(xué)劑。
本句中的兩個that 均引導(dǎo)定語從句。其中,第一個that指代chemicals,在從句中作主語;第二個that指代plants,在從句中作eat的賓語,這時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.
人們一直都在共同努力記錄它的遷徙并且確保這兒有足夠的植物供它采食。
本句中t recrd its migratin作目的狀語。that引導(dǎo)賓語從句,作make sure的賓語,這時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.
我們對這種可愛的生物了解的越多,它存活下來并在未來很長一段時間里在自然界保有地位的幾率也就越大。
句中的 the mre…, the mre… 是固定搭配,結(jié)構(gòu)為:the + 比較級,the + 比較級,譯為:越……,越……。
The mre I knw him, the mre I like him.The harder yu wrk, the better results yu’ll get. ?
我越了解他就越喜歡他。
你學(xué)習(xí)越努力,成績就會越好。

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