資源簡(jiǎn)介

Period 2　 課文整體閱讀(Understanding ideas)
Ⅰ．文章大意
What's the main idea of the passage
A．The reason why the monarch butterfly migrates．
B．The process of the monarch butterfly's migration．
C．A study about the monarch butterfly．
D．A study on the migration of the monarch butterfly and its significance．
Ⅱ．篇章結(jié)構(gòu)
1．Which is NOT the purpose of animals' migration
A．To find food．
B．To find a partner．
C．To escape being killed．
D．To find warmer weather．
2．Why does the author say the monarch is in serious trouble
A．The North American monarch butterflies are in danger of extinction．
B．The North American monarch butterflies are forced to migrate every autumn．
C．The North American monarch butterflies have to travel around 4，000 kilometres south．
D．People are killing more and more North American monarch butterflies．
3．What might be the purpose of the scientists' work according to the passage
A．To be aware of the importance of protecting the North American monarch butterflies．
B．To keep a record of the migration of the North American monarch butterflies and find out enough plants for them to eat．
C．To help the North American monarch butterflies increase their number．
D．To get us to know more about the North American monarch butterflies．
1．What spirit can you learn from the monarch butterflies
_____________________________________________________________________
2．If you were the butterfly，will you overcome all the difficulties to reach a warmer place
_____________________________________________________________________
Ⅰ．一詞多義/熟詞生義
1．position n．位置；姿勢(shì)；職位；處境；立場(chǎng)，態(tài)度
①(教材原句)It uses its eyes to measure the position of the sun． ____________
②I'm writing to you to apply for the position as a student volunteer． ____________
③This trouble put him and his colleagues in a difficult position． ____________
④His comments showed that he misunderstood my position on the question． ____________
2．crash v．暴跌；撞擊，墜毀；(計(jì)算機(jī)或程序)出故障，崩潰
①(教材原句)Its population has crashed by as much as 90 per cent in the last few years． ____________
②Of the six people in the plane that crashed only one survived． ____________
③My computer crashed when I was about to finish my project． ____________
3．She was a beautiful creature with long hair and brilliant eyes． ____________
Ⅱ．詞塊積累
1．________________ 從一個(gè)地方到另一個(gè)地方
2．________________ 尋找同伴
3．________________ 確定前進(jìn)的道路
4．________________ 陷入嚴(yán)重麻煩
5．________________ 人類活動(dòng)
6．________________ 占有一席之地
Ⅲ．寫作佳句
1．They migrate ____________，____________，or ________________________．
它們?yōu)榱艘捠场ふ遗渑蓟驕嘏沫h(huán)境而遷徙。
2．Every autumn，millions of these beautiful insects _________________________begin a long and difficult journey．
每年秋天，數(shù)百萬(wàn)只這種翅膀橙黑相間的美麗昆蟲(chóng)都會(huì)開(kāi)啟漫長(zhǎng)且艱辛的旅程。
3．Somehow they manage ________________________________ and find their way to California or Mexico．
它們總是能夠完成約4 000公里的南行旅程，成功到達(dá)(美國(guó))加利福尼亞州或墨西哥。
Ⅳ．長(zhǎng)難語(yǔ)句
1．These two pieces of information—the time of day and the point where the sun is in the sky—allow the butterfly to determine the way to go．
[分析]　本句是一個(gè)復(fù)合句，the time of day and the point where the sun is in the sky是information的________，其中where the sun is in the sky是定語(yǔ)從句，修飾先行詞____________，to go是不定式作________。
[翻譯]　_____________________________________________________________
_____________________________________________________________________
2．They cut down trees and use chemicals that kill the plants that monarch caterpillars eat．
[分析]　本句是一個(gè)復(fù)合句，that kill the plants that monarch caterpillars eat是that引導(dǎo)的定語(yǔ)從句，修飾先行詞________，其中that monarch caterpillars eat為定語(yǔ)從句，修飾先行詞____________。
[翻譯]　_____________________________________________________________
_____________________________________________________________________
Ⅴ．課文語(yǔ)法填空
Many animals move from one place 1．________ another at certain times annually，which is called migration．One of the most 2．________(wonder) migrations in nature is that of the North American monarch butterfly．The mass migration of the monarch is no longer a mystery，according to a team of scientists 3．________(lead) by a professor who observed their movements．They have found out that the monarch is able to tell the time of day and uses its eyes 4．____________(measure) the position of the sun，which allows the butterfly to determine the way to go．
Unfortunately，the population of the monarch 5．____________(crash) in the last few years．6．________(sad)，human activity is the main reason 7．________ the number of monarch butterflies is falling．People are destroying the environment where the butterfly can be found．They cut down trees and use chemicals 8．________(kill) the plants which monarch caterpillars eat．
Fortunately，the research on the monarch's behaviour has led to people's greater 9．________(aware) of this creature．People have been working together to make sure that there is enough food for it．If this works，10．________ number of monarch butterflies may increase once again．
①annual adj．一年一度的，每年的
②migration n．遷徙
③migrate v．遷徙，移棲
④seek v．尋找，尋求
⑤in search of 尋找
⑥monarch n．君主，國(guó)王
monarch butterfly黑脈金斑蝶
⑦millions of 數(shù)百萬(wàn)的
⑧somehow adv．以某種方式
anyhow adv．無(wú)論如何
⑨manage to do sth．設(shè)法做成某事
⑩professor n．教授
find out 發(fā)現(xiàn)，弄明白
tell v．分辨，識(shí)別
measure v．量，測(cè)量
position n．位置
allow sb．to do sth．準(zhǔn)許某人做某事
determine v．測(cè)定，確定
eventually adv．終于，最終
solution n．解決，解決方法
the solution to ……的解決方法
mystery n．難以理解的事物，謎
amazing adj．驚人的，了不起的
in trouble 在困境中
crash v．暴跌
per cent n．百分比
in the last few years 在過(guò)去的幾年里
human activity 人類活動(dòng)
the number of……的數(shù)量
destroy v．破壞，毀掉
cut down 砍倒
chemical n．化學(xué)品
caterpillar n．毛蟲(chóng)(蝴蝶等昆蟲(chóng)的幼蟲(chóng))
lead to 導(dǎo)致；通向
creature n．生物，動(dòng)物
make sure 確保
feed on 以……為主食
work v．奏效
survive v．活下來(lái)，幸存
The Monarch's Journey
Many animals move from one place to another at certain times of the year．This annual① movement is called migration②．They migrate③ to find food，seek④ a partner，or in search of⑤ warmer weather．One of the most wonderful migrations in nature is that of the North American monarch butterfly[1]．
[1]此處that是指示代詞，指代前面的one of the most wonderful migrations。
Every autumn，millions of⑦these beautiful insects with fine black and orange wings begin a long and difficult journey．Somehow⑧ they manage to travel⑨ around 4，000 kilometres south and find their way to California or Mexico．However，until recently no one knew how they did this[2]．
[2]until...no...是“not...until...”的變式，意為“直到……才……”。
A team of scientists led by Professor⑩ Eli Shlizerman at the University of Washington[3] has now found the answer．They have found out that the monarch is able to tell the time of day．It uses its eyes to measure the position of the sun．These two pieces of information—the time of day and the point where the sun is in the sky[4]—allow the butterfly to determine the way to go．Eventually ，it manages to reach the places where it will spend the winter．
[3]led by...是過(guò)去分詞短語(yǔ)，作A team of scientists的定語(yǔ)。
[4]關(guān)系副詞where引導(dǎo)定語(yǔ)從句，修飾先行詞the point，where在從句中作地點(diǎn)狀語(yǔ)。
The solution to the mystery of the monarch's amazing ability comes at a time when it is in serious trouble [5]．Its population has crashed by as much as 90 per cent in the last few years ．Sadly，human activity is the main reason why the number of monarch butterflies is falling[6]．In many of the places where the butterfly can be found[7]，people are destroying the natural environment．They cut down trees and use chemicals that kill the plants that monarch caterpillars eat[8]．
[5]關(guān)系副詞when引導(dǎo)定語(yǔ)從句，修飾先行詞a time，when在從句中作時(shí)間狀語(yǔ)。
[6]關(guān)系副詞why引導(dǎo)定語(yǔ)從句，修飾先行詞the main reason，why在從句中作原因狀語(yǔ)。
[7]關(guān)系副詞where引導(dǎo)定語(yǔ)從句，修飾先行詞the places，where在從句中作地點(diǎn)狀語(yǔ)。
[8]that kill the plants that monarch caterpillars eat是that引導(dǎo)的定語(yǔ)從句，修飾先行詞chemicals，其中that monarch caterpillars eat為定語(yǔ)從句，修飾先行詞the plants。
The research on the monarch's behaviour has however led to a greater awareness of this creature ．People have been working[9] together to record its migration and make sure that there are enough plants for it to feed on ．If this works ，there may come a time when the number of monarch butterflies increases once again．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．[10]
[9]have been working是現(xiàn)在完成進(jìn)行時(shí)，表示從過(guò)去某時(shí)開(kāi)始一直延續(xù)到現(xiàn)在并有可能繼續(xù)下去的動(dòng)作。
[10]該句是“the＋比較級(jí)，the＋比較級(jí)”結(jié)構(gòu)，意為“越……就越……”。
黑脈金斑蝶的旅程
許多動(dòng)物都會(huì)在每年的特定時(shí)間從一處遷移到另一處。這種一年一度的行為叫作“遷徙”。它們?yōu)榱艘捠场ふ遗渑蓟驕嘏沫h(huán)境而遷徙。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。
每年秋天，數(shù)百萬(wàn)只這種翅膀橙黑相間的美麗昆蟲(chóng)都會(huì)開(kāi)啟漫長(zhǎng)且艱辛的旅程。它們總是能夠完成約4 000公里的南行旅程，成功到達(dá)(美國(guó))加利福尼亞州或墨西哥。然而，直到最近人們才明白它們是如何做到的。
一支由伊萊·史利澤曼教授領(lǐng)導(dǎo)的來(lái)自華盛頓大學(xué)的科學(xué)家團(tuán)隊(duì)現(xiàn)已找到了答案。他們發(fā)現(xiàn)，黑脈金斑蝶可以判斷時(shí)間，并能用眼睛測(cè)量太陽(yáng)的位置。這兩條信息——一天中的時(shí)刻和太陽(yáng)在天空中的位置——讓黑脈金斑蝶能夠判定前進(jìn)方向。最終成功抵達(dá)過(guò)冬的地點(diǎn)。
黑脈金斑蝶這一驚人能力的奧秘被揭開(kāi)時(shí)，這一生物正處于水深火熱的生存狀態(tài)中。其數(shù)量在近年內(nèi)減少了百分之九十之多。不幸的是，人類活動(dòng)是造成其數(shù)量下降的主要原因。在黑脈金斑蝶生存的許多地方，人們正破壞著那里的自然環(huán)境。他們砍伐樹(shù)木，他們所用的化學(xué)制劑殺死了黑脈金斑蝶幼蟲(chóng)食用的植物。
不過(guò)，對(duì)黑脈金斑蝶行為的研究也使得人們對(duì)這種生物有了更多的了解。人們已經(jīng)在共同努力，記錄它的遷徙，并確保它有足夠的食物。如果這些努力產(chǎn)生效果，黑脈金斑蝶的數(shù)量在未來(lái)有可能再次回升。我們對(duì)這種迷人的生物了解越多，它們?cè)谧匀唤缰械靡蚤L(zhǎng)久生存并保持其位置的可能性就越大。
Period 2
課文理解
Task 1　整體理解
Ⅰ．D
Ⅱ．1．food　2．partner　3．warmer weather　4．4，000　5．the time of day　6．position　7．natural environment　8．survive
Task 2　細(xì)節(jié)理解
1－3　CAB
Task 3　多維探究
略
課文精粹
Ⅰ．1．①位置　②職位　③處境　④立場(chǎng)，態(tài)度
2．①暴跌　②墜毀　③出故障，崩潰
3．n．人
Ⅱ．1．from one place to another　2．seek a partner
3．determine the way to go　4．in serious trouble　5．human activity　6．keep one's place
Ⅲ．1．to find food；seek a partner；in search of warmer weather
2．with fine black and orange wings　3．to travel around 4，000 kilometres south
Ⅳ．1．分析：同位語(yǔ)；the point；定語(yǔ)
翻譯：這兩條信息——一天中的時(shí)刻和太陽(yáng)在天空中的位置——讓黑脈金斑蝶能夠判定前進(jìn)方向。
2．分析：chemicals；the plants
翻譯：他們砍伐樹(shù)木，他們所用的化學(xué)制劑殺死了黑脈金斑蝶幼蟲(chóng)食用的植物。
Ⅴ．1．to　2．wonderful　3．led　4．to measure　5．has crashed　6．Sadly　7．why　8．killing　9．a(chǎn)wareness　10．the
1/1(共37張PPT)
復(fù)習(xí)任務(wù)群一
現(xiàn)代文閱讀Ⅰ
把握共性之“新”　打通應(yīng)考之“脈”
Unit 5　
Into the wild
主題語(yǔ)境　人與自然——人與動(dòng)植物
Period 2　課時(shí)練案 課文整體閱讀(Understanding ideas)
√
Ⅰ．文章大意
What's the main idea of the passage
A．The reason why the monarch butterfly migrates．
B．The process of the monarch butterfly's migration．
C．A study about the monarch butterfly．
D．A study on the migration of the monarch butterfly and its significance．
Ⅱ．篇章結(jié)構(gòu)
food
partner
warmer
4，000
the time
of day
position
weather
survive
natural environment
√
1．Which is NOT the purpose of animals' migration
A．To find food．
B．To find a partner．
C．To escape being killed．
D．To find warmer weather．
√
2．Why does the author say the monarch is in serious trouble
A．The North American monarch butterflies are in danger of extinction．
B．The North American monarch butterflies are forced to migrate every autumn．
C．The North American monarch butterflies have to travel around 4，000 kilometres south．
D．People are killing more and more North American monarch butterflies．
√
3．What might be the purpose of the scientists' work according to the passage
A．To be aware of the importance of protecting the North American monarch butterflies．
B．To keep a record of the migration of the North American monarch butterflies and find out enough plants for them to eat．
C．To help the North American monarch butterflies increase their number．
D．To get us to know more about the North American monarch butterflies．
1．What spirit can you learn from the monarch butterflies
______________________________________________________________________________________________________________________
2．If you were the butterfly，will you overcome all the difficulties to reach a warmer place
______________________________________________________________________________________________________________________
[答案]　略
Ⅰ．一詞多義/熟詞生義
1．position n．位置；姿勢(shì)；職位；處境；立場(chǎng)，態(tài)度
①(教材原句)It uses its eyes to measure the position of the sun． ____
②I'm writing to you to apply for the position as a student volunteer． ____
③This trouble put him and his colleagues in a difficult position． ____
④His comments showed that he misunderstood my position on the question． __________
位置
職位
處境
立場(chǎng)，態(tài)度
2．crash v．暴跌；撞擊，墜毀；(計(jì)算機(jī)或程序)出故障，崩潰
①(教材原句)Its population has crashed by as much as 90 per cent in the last few years． ____
②Of the six people in the plane that crashed only one survived． ____
③My computer crashed when I was about to finish my project． ____________
3．She was a beautiful creature with long hair and brilliant eyes． _____
暴跌
墜毀
出故障，崩潰
n．人
Ⅱ．詞塊積累
1．_____________________________ 從一個(gè)地方到另一個(gè)地方
2．________________ 尋找同伴
3．___________________________ 確定前進(jìn)的道路
4．____________________ 陷入嚴(yán)重麻煩
5．_______________ 人類活動(dòng)
6．___________________ 占有一席之地
from one place to another
seek a partner
determine the way to go
in serious trouble
human activity
keep one's place
Ⅲ．寫作佳句
1．They migrate ______________，________________，or _______________________________．
它們?yōu)榱艘捠场ふ遗渑蓟驕嘏沫h(huán)境而遷徙。
2．Every autumn，millions of these beautiful insects _______________
_______________ begin a long and difficult journey．
每年秋天，數(shù)百萬(wàn)只這種翅膀橙黑相間的美麗昆蟲(chóng)都會(huì)開(kāi)啟漫長(zhǎng)且艱辛的旅程。
to find food
seek a partner
in search of warmer weather
with fine black
and orange wings
3．Somehow they manage ____________________________________
and find their way to California or Mexico．
它們總是能夠完成約4 000公里的南行旅程，成功到達(dá)(美國(guó))加利福尼亞州或墨西哥。
to travel around 4，000 kilometres south
Ⅳ．長(zhǎng)難語(yǔ)句
1．These two pieces of information—the time of day and the point where the sun is in the sky—allow the butterfly to determine the way to go．
[分析]　本句是一個(gè)復(fù)合句，the time of day and the point where the sun is in the sky是information的______，其中where the sun is in the sky是定語(yǔ)從句，修飾先行詞__________，to go是不定式作____。
[翻譯]　________________________________________________________________________________
同位語(yǔ)
the point
定語(yǔ)
這兩條信息——一天中的時(shí)刻和太陽(yáng)在天空中的位置——讓黑脈金斑蝶能夠判定前進(jìn)方向。
2．They cut down trees and use chemicals that kill the plants that monarch caterpillars eat．
[分析]　本句是一個(gè)復(fù)合句，that kill the plants that monarch caterpillars eat是that引導(dǎo)的定語(yǔ)從句，修飾先行詞_________，其中that monarch caterpillars eat為定語(yǔ)從句，修飾先行詞___________。
[翻譯]　________________________________________________________________
chemicals
the plants
他們砍伐樹(shù)木，他們所用的化學(xué)制劑殺死了黑脈金斑蝶幼蟲(chóng)食用的植物。
Ⅴ．課文語(yǔ)法填空
Many animals move from one place 1．__ another at certain times annually，which is called migration．One of the most 2．_________ (wonder) migrations in nature is that of the North American monarch butterfly．The mass migration of the monarch is no longer a mystery，according to a team of scientists 3．___(lead) by a professor who observed their movements．They have found out that the monarch is able to tell the time of day and uses its eyes 4．___________ (measure) the position of the sun，which allows the butterfly to determine the way to go．
to
wonderful
led
to measure
Unfortunately，the population of the monarch 5．______________
(crash) in the last few years．6．_____ (sad)，human activity is the main reason 7．________ the number of monarch butterflies is falling．People are destroying the environment where the butterfly can be found．They cut down trees and use chemicals 8．_______(kill) the plants which monarch caterpillars eat．
has crashed
Sadly
why
killing
Fortunately，the research on the monarch's behaviour has led to people's greater 9．_________ (aware) of this creature．People have been working together to make sure that there is enough food for it．If this works，10．___ number of monarch butterflies may increase once again．
awareness
the
①annual adj．一年一度的，每年的
②migration n．遷徙
③migrate v．遷徙，移棲
④seek v．尋找，尋求
⑤in search of 尋找
⑥monarch n．君主，國(guó)王
monarch butterfly 黑脈金斑蝶
⑦millions of 數(shù)百萬(wàn)的
⑧somehow adv．以某種方式
anyhow adv．無(wú)論如何
⑨manage to do sth．設(shè)法做成某事
⑩professor n．教授
find out 發(fā)現(xiàn)，弄明白
tell v．分辨，識(shí)別
measure v．量，測(cè)量
position n．位置
allow sb．to do sth．準(zhǔn)許某人做某事
determine v．測(cè)定，確定
eventually adv．終于，最終
solution n．解決，解決方法
the solution to ……的解決方法
mystery n．難以理解的事物，謎
amazing adj．驚人的，了不起的
in trouble 在困境中
crash v．暴跌
per cent n．百分比
in the last few years 在過(guò)去的幾年里
human activity 人類活動(dòng)
the number of……的數(shù)量
destroy v．破壞，毀掉
cut down 砍倒
chemical n．化學(xué)品
caterpillar n．毛蟲(chóng)(蝴蝶等昆蟲(chóng)的幼蟲(chóng))
lead to 導(dǎo)致；通向
creature n．生物，動(dòng)物
make sure 確保
feed on 以……為主食
work v．奏效
survive v．活下來(lái)，幸存
The Monarch's Journey
Many animals move from one place to another at certain times of the year．This annual① movement is called migration②．They migrate③ to find food，seek④ a partner，or in search of⑤ warmer weather．One of the most wonderful migrations in nature is that of the North American monarch butterfly[1]．
[1]此處that是指示代詞，指代前面的one of the most wonderful migrations。
Every autumn，millions of⑦these beautiful insects with fine black and orange wings begin a long and difficult journey．Somehow⑧ they manage to travel⑨ around 4，000 kilometres south and find their way to California or Mexico．However，until recently no one knew how they did this[2]．
[2]until...no...是“not...until...”的變式，意為“直到……才……”。
A team of scientists led by Professor⑩ Eli Shlizerman at the University of Washington[3] has now found the answer．They have found out that the monarch is able to tell the time of day．It uses its eyes to measure the position of the sun．These two pieces of information—the time of day and the point where the sun is in the sky[4]—allow the butterfly to determine the way to go．Eventually ，it manages to reach the places where it will spend the winter．
[3]led by...是過(guò)去分詞短語(yǔ)，作A team of scientists的定語(yǔ)。
[4]關(guān)系副詞where引導(dǎo)定語(yǔ)從句，修飾先行詞the point，where在從句中作地點(diǎn)狀語(yǔ)。
The solution to the mystery of the monarch's amazing ability comes at a time when it is in serious trouble [5]．Its population has crashed by as much as 90 per cent in the last few years ．Sadly，human activity is the main reason why the number of monarch butterflies is falling[6]．In many of the places where the butterfly can be found[7]，people are destroying the natural environment．They cut down trees and use chemicals that kill the plants that monarch caterpillars eat[8]．
[5]關(guān)系副詞when引導(dǎo)定語(yǔ)從句，修飾先行詞a time，when在從句中作時(shí)間狀語(yǔ)。
[6]關(guān)系副詞why引導(dǎo)定語(yǔ)從句，修飾先行詞the main reason，why在從句中作原因狀語(yǔ)。
[7]關(guān)系副詞where引導(dǎo)定語(yǔ)從句，修飾先行詞the places，where在從句中作地點(diǎn)狀語(yǔ)。
[8]that kill the plants that monarch caterpillars eat是that引導(dǎo)的定語(yǔ)從句，修飾先行詞chemicals，其中that monarch caterpillars eat為定語(yǔ)從句，修飾先行詞the plants。
The research on the monarch's behaviour has however led to a greater awareness of this creature ．People have been working[9] together to record its migration and make sure that there are enough plants for it to feed on ．If this works ，there may come a time when the number of monarch butterflies increases once again．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．[10]
[9]have been working是現(xiàn)在完成進(jìn)行時(shí)，表示從過(guò)去某時(shí)開(kāi)始一直延續(xù)到現(xiàn)在并有可能繼續(xù)下去的動(dòng)作。
[10]該句是“the＋比較級(jí)，the＋比較級(jí)”結(jié)構(gòu)，意為“越……就越……”。
黑脈金斑蝶的旅程
許多動(dòng)物都會(huì)在每年的特定時(shí)間從一處遷移到另一處。這種一年一度的行為叫作“遷徙”。它們?yōu)榱艘捠场ふ遗渑蓟驕嘏沫h(huán)境而遷徙。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。
每年秋天，數(shù)百萬(wàn)只這種翅膀橙黑相間的美麗昆蟲(chóng)都會(huì)開(kāi)啟漫長(zhǎng)且艱辛的旅程。它們總是能夠完成約4 000公里的南行旅程，成功到達(dá)(美國(guó))加利福尼亞州或墨西哥。然而，直到最近人們才明白它們是如何做到的。
一支由伊萊·史利澤曼教授領(lǐng)導(dǎo)的來(lái)自華盛頓大學(xué)的科學(xué)家團(tuán)隊(duì)現(xiàn)已找到了答案。他們發(fā)現(xiàn)，黑脈金斑蝶可以判斷時(shí)間，并能用眼睛測(cè)量太陽(yáng)的位置。這兩條信息——一天中的時(shí)刻和太陽(yáng)在天空中的位置——讓黑脈金斑蝶能夠判定前進(jìn)方向。最終成功抵達(dá)過(guò)冬的地點(diǎn)。
黑脈金斑蝶這一驚人能力的奧秘被揭開(kāi)時(shí)，這一生物正處于水深火熱的生存狀態(tài)中。其數(shù)量在近年內(nèi)減少了百分之九十之多。不幸的是，人類活動(dòng)是造成其數(shù)量下降的主要原因。在黑脈金斑蝶生存的許多地方，人們正破壞著那里的自然環(huán)境。他們砍伐樹(shù)木，他們所用的化學(xué)制劑殺死了黑脈金斑蝶幼蟲(chóng)食用的植物。
不過(guò)，對(duì)黑脈金斑蝶行為的研究也使得人們對(duì)這種生物有了更多的了解。人們已經(jīng)在共同努力，記錄它的遷徙，并確保它有足夠的食物。如果這些努力產(chǎn)生效果，黑脈金斑蝶的數(shù)量在未來(lái)有可能再次回升。我們對(duì)這種迷人的生物了解越多，它們?cè)谧匀唤缰械靡蚤L(zhǎng)久生存并保持其位置的可能性就越大。
謝 謝！

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