Period 3 语言知识讲练(Understanding ideas)
1．seek v．寻找，寻求；试图；谋求
(1)seek to do sth． 试图/设法做某事
seek sth．from sb． 向某人请求/寻求某物
seek out 挑选出；找出
seek for/after 追求；寻求
(2)seek one's fortune 寻找致富/成功之路
[名师点津] seek的过去式和过去分词都是sought。
[即学即练]——单句语法填空/完成句子
①We seek to find(find) a way to make us get along well with the people around us．
②If you have any questions，you can seek help from your teammates．
③在南瓜地里，我和我的三个兄弟姐妹比赛找出最大的南瓜。
In the pumpkin field，I compete with my three brothers and sisters to seek out the biggest pumpkin．
2．measure v．量，测量；估量；有……长(或宽、高等) n．尺寸；措施
measure...by/in... 用……来衡量……
make...to one's measure 按某人的尺寸做……
take measures (to do sth．) 采取措施(做某事)
[名师点津] measure作动词表示“有……长/宽/高”时，为不及物动词，不用于被动语态和进行时，若此意义的短语作后置定语，要用动词-ing形式。
[即学即练]——单句语法填空/完成句子
①Education shouldn't be measured only by/in examination results．
②We study in a classroom measuring(measure) 30 feet long and 20 feet wide．
③现在，他们应该采取强有力的措施来推进经济。
Right now，they should take powerful measures to push the economy forward．
3．determine v．测定，确定；决定；决心
(1)determine to do sth． 决心做某事
determine sb．to do sth． 使某人决心做某事
(2)determined adj． 坚决的；有决心的；意志坚定的
be determined to do sth． 决心做某事
(3)determination n． 决心
[即学即练]——单句语法填空/一句多译
①The determined(determine) look on his face showed that he had enough confidence in himself．
②It takes hard work and determination(determine) to reach the goals that we want to achieve．
③决心按时完成这项工作，他们立即着手干了。
a．Because they (were) determined to complete the job on time，they set out to work immediately．(原因状语从句)
b．Determined to complete the job on time，they set out to work immediately．(形容词短语作状语)
4．amazing adj．惊人的，了不起的
(1)It is amazing that... 令人惊讶的是……
(2)amaze v． 使吃惊；使惊讶
It amazes sb．that...＝What amazes sb．is that...
使某人惊讶的是……
(3)amazed adj． 吃惊的；惊讶的
be amazed at/by... 对……感到惊讶
be amazed to do sth． 因做某事感到惊讶
(4)amazement n． 吃惊；惊讶
to one's amazement 令某人惊讶的是
in amazement 惊愕地
[即学即练]——单句语法填空/一句多译
①If you come to visit China，you will experience a culture of amazing(amaze) depth and variety．
②From his amazed(amaze) looks I knew he hadn't expect my early arrival．
③令我惊讶的是，他能凭记忆把这首诗完整地背出来。
a．It amazed me that he was able to recite the whole poem from memory．(形式主语)
b．What amazed me was that he was able to recite the whole poem from memory．(主语从句)
c．To my amazement，he was able to recite the whole poem from memory．(amazement)
5．cut down 砍倒；减少；缩短
cut down on 减少；削减
cut in 插嘴；打断
cut off 切断；中断；隔绝
cut out 剪下；删除
cut up 切碎
[即学即练]——单句语法填空/完成句子
①It is impolite for children to cut in when their seniors are talking．
②When their children lived far away from them，these old people felt cut off from the world．
③很多树木正在被砍伐，而且越来越多的森林消失，这使得动物们失去了它们赖以生存的家园。
Many trees are being cut down and more and more forests are lost，making animals lose their homes to live in．
6．survive v．活下来，幸存
(1)survive sb．by... 比某人多活……
survive sth． (经历意外、战争、疾病等后)幸存，活下来
survive on sth． 靠某物(继续)维持生活
(2)survival n． 幸存
survivor n． 幸存者
[即学即练]——单句语法填空/完成句子
①He only survived(survive) the attack because he was wearing body armour．
②I don't know how you all manage to survive on your husband's salary．
③生活不在于如何从暴风雨中生存，而在于学会在雨中翩翩起舞。
Life isn't about how to survive the storm/surviving the storm；it's about learning to dance in the rain．
7．effect n．影响，结果
(1)have an effect on 对……有影响
in effect 事实上
come into/take effect 生效，见效
bring/put...into effect 实施……，使……生效
(2)effective adj． 有效的
[即学即练]——单句语法填空/完成句子
①He said he graduated from a famous university，but in effect，he never went to college．
②Keeping a diary in English is an effective(effect) way to improve our English writing ability．
③毫无疑问，“一带一路”倡议将会对所有相关国家产生巨大影响。
There is no doubt that “The Belt and Road” initiative will have a great effect on all the relevant countries．
the＋比较级，the＋比较级
(教材P68)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．
我们对这种迷人的生物了解越多，它们在自然界中得以长久生存并保持其位置的可能性就越大。
[句式分析] 句中The more和the greater属于“the＋比较级，the＋比较级”句式，表示“越……就越……”。
The closer you stay to nature，the more you will appreciate her beauty．
你越接近大自然，就越能欣赏她的美。
“the＋比较级，the＋比较级”的具体用法如下：
(1)通常情况下，这一句式中的前者即前一个“the＋比较级(＋主语＋谓语)”相当于条件状语从句；后者即后一个“the＋比较级(＋主语＋谓语)”相当于主句；
(2)该句式表示后者随着前者的变化而变化；
(3)在表示将来意义的情况下，前者常用一般现在时，后者常用一般将来时；
(4)如果句意明确，该句式常以省略形式出现，如The more，the better。
[即学即练]——单句语法填空/完成句子
①The more careful you are，the fewer(few) mistakes you'll make．
②The more you know，the more you will realize how little you know．
③走在一条泥土路上的时候，天越黑我越害怕。
While I was walking on the dirt path，the darker it was，the more frightened I was．
Ⅰ．单句语法填空
1．It was truly amazing(amaze) to see how much work goes into a Broadway musical．
2．With more and more forests cut down，large quantities of soil are being washed away．
3．The worse(bad) our situation is，the calmer we should keep．
4．The people at war greatly need fresh food and water for survival(survive)．
5．Hard as it is，the Chinese government is determined to open(open) up the new Silk Road．
6．The house is more than twenty meters long and measures(measure) six meters in width．
7．We can't ignore the effect of human activities on the global environment．
8．Many athletes seek to achieve(achieve) beyond the natural limits by training hard every day．
Ⅱ．完成句子
1．我们越尊重大自然，大自然给予我们的馈赠就越多。(the＋比较级，the＋比较级)
The more we respect nature，the more it will give us back．
2．有困难你可以向老师寻求帮助。(seek)
You can seek help from your teacher when getting into trouble．
3．紧张但坚定，我把奖牌握在手中，去了学校。(determine)
Nervous but determined，I held the medal in my hand and went to school．
4．我们衷心希望采取有效措施来保护海洋免受进一步的污染。(measure)
We sincerely hope that effective measures can be taken to protect the oceans from being further polluted．
Ⅲ．课文语法填空
At certain times of the year，we can see many animals move from one place to 1．another．This movement 2．is called(call)migration．They migrate 3．to find(find) food，seek a partner，or in search of 4．warmer(warm) weather．Every fall，millions of beautiful monarch 5．butterflies(butterfly) begin the journey．They manage to travel a long distance to the places 6．where they will spend the winter．Scientists have found out that the monarch is able to tell 7．the time of day．It then uses 8．its(it) eyes to measure the position of the sun．But the population of them 9．has crashed(crash) in the last few years．The more we know about them，the greater the chance they 10．will survive(survive)．
课时分层作业(十三)
Ⅰ．单词拼写
1．The annual(一年一度的) Dragon Boat Festival is to memorize the ancient poet Qu Yuan．
2．It may take a long time for us to find the solution(解决方法) to the problem．
3．Travelling with friends can be an absolutely amazing (了不起的) experience where you can make lifelong memories and friendship．
4．The next moment witnessed their efforts to make breakfast and they eventually(最终) made it．
5．If people keep polluting the ocean，no creature will survive(幸存) in the long run．
Ⅱ．单句语法填空
1．He sought(seek) every opportunity to find the job he had wanted．
2．If you were in my position，you would have sympathy for those poor children．
3．The car that my uncle had just bought was destroyed (destroy) in the earthquake．
4．Professor Johnson is such a determined(determine) person that he has managed to finish the research．
5．The new bridge under construction，measuring(measure) twice as wide as the old one，is due to be completed next month．
Ⅲ．阅读理解
A
Because of the “Yunnan Elephant”，many people have developed a strong interest in elephants，and it has also aroused a heated discussion about how man and nature should share the earth and live in harmony．In this issue of “Weekend Cinema”，Yingda has brought four documentaries related to this：
The Secret Life of Elephants
The Secret Life of Elephants is a BBC nature documentary series following the lives of elephants and the work of the conservation charity Save the Elephants in Samburu National Reserve，Kenya．It was first released in the United Kingdom on BBC One in January 2009 to 4.2 million viewers．The team follows the dramatic and emotional stories of 500 plus individually known elephants．
Penguin Town
The series is filmed in Simon's Town，South Africa，where these adorable African penguins wander close by people，strolling down the sidewalk，passing sunbathers on the beach．The series follows various penguin couples．With great humour，their love stories are told，and you follow the adventures of these penguin couples starting families and having chicks．
Seven Worlds，One Planet
Millions of years ago incredible forces tore apart the earth's crust(地壳) creating seven extraordinary continents，each with its own distinct climate，its own distinct terrain(地形) and its own unique animal life．Seven Worlds，One Planet explores the natural wonders that give each of our continents its distinct character．Following the animals that have made these environments their home，it discovers amazing wildlife stories that uncover what makes each of these seven worlds unique．
Bears on Top of the World
This moving film reveals the differing fortunes of a mother polar bear，a mother grizzly bear and their newborn babies，in a rapidly changing world．This is a remarkable story of how bears，ever intelligent，are adapting to a warming world．
【语篇解读】 本文是一篇应用文。文章介绍了四部有关人与自然如何共享地球并和谐共处的纪录片。
1．If you are interested in documentaries with funny languages，which film do you prefer
A．The Secret Life of Elephants
B．Penguin Town
C．Seven Worlds，One Planet
D．Bears on Top of the World
B [细节理解题。根据Penguin Town部分的“With great humour，their love stories are told，and you follow the adventures of these penguin couples starting families and having chicks．”可知，这部纪录片用幽默的语言讲述了企鹅夫妇的故事。因此，如果你对有幽默语言的纪录片感兴趣可以选择Penguin Town。故选B。]
2．What do these four documentaries have in common
A．They are all filmed in Africa．
B．They explore the natural wonders with distinct characters．
C．They share the stories of wildlife．
D．They focus on animals adapting to the changing world．
C [细节理解题。根据第二段的“The team follows the dramatic and emotional stories of 500 plus individually known elephants．”，第三段的“The series follows various penguin couples．”，第四段的“Following the animals...it discovers amazing wildlife stories...”和第五段的“This moving film reveals the differing fortunes of a mother polar bear，a mother grizzly bear and their newborn babies，in a rapidly changing world．”可知，这四部纪录片的共同之处是它们都讲述了野生动物的故事。故选C。]
3．Which section on the website can you find this passage
A．Sports and Health
B．Entertainment and Culture
C．Finance and Economics
D．Technology and Science
B [文章出处题。根据第一段并结合下文对四部纪录片的介绍可推知，这篇文章最有可能在网站的“娱乐和文化”部分读到。故选B。]
B
The white rhinos (犀牛) are near-threatened due to massive illegal hunting; the mountain gorilla(大猩猩) is classed as an endangered species due to great habitat destruction．If no action is taken，these amazing creatures will undoubtedly be extinct before the end of the century．But scientists are working hard to stop this with some pretty cool drone tech(无人机技术)．
One of the biggest dangers to endangered animals in the modern day comes from illegal hunting，which claims the lives of hundreds of white rhinos every year．While regular patrols(巡逻队) can drive hunters away from certain areas，hunters are often well-armed and unafraid to fire upon those hoping to protect the rhinos．This is where drones come in．If researchers work in these areas，there would be a real danger of coming into contact with the hunters．By having drones collect data，movement patterns and numbers of animals，researchers can get away from such dangers．
Drones can also be sent into the skies above difficult-to-reach areas to get data that would otherwise be tough to collect．For example，mountain gorillas are usually found in deep jungle，and organizing an exploration can be expensive and demanding．Researchers can send drones over the forest to gather data about the habitat of the animals，and even take high quality images．This information can be priceless when it comes to an on-foot exploration，as researchers can get up-to-date information．In this situation，human-led surveys will still offer better results，but drones can play a huge part．
The downside presently is the cost，which can run into tens，if not thousands，of dollars．However，drone tech is still becoming a more favorable choice in the fight against wildlife extinction．
【语篇解读】 本文是一篇说明文。科学家利用无人机收集信息，帮助减缓濒危动物(如白犀牛和山地大猩猩)的减少。
4．What does the underlined word “claims”mean in paragraph 2
A．Ends． B．Saves．
C．Changes． D．Shortens．
A [词义猜测题。根据画线单词前的“One of the biggest dangers to endangered animals in the modern day comes from illegal hunting”及画线单词后的“the lives of hundreds of white rhinos”可知，捕猎导致白犀牛的死亡，即结束它们的生命。故选A项。]
5．How can the drone tech contribute to wildlife protection
A．It can gather useful information．
B．It can process important data．
C．It can drive away illegal hunters．
D．It can replace human-led surveys．
A [细节理解题。根据第三段第一句可知，无人机是通过收集数据来帮助保护野生动物的。故选A项。]
6．What might be the author's attitude towards the drone tech
A．Critical． B．Concerned．
C．Doubtful． D．Positive．
D [观点态度题。根据第四段最后一句可知，作者对无人机技术的态度是支持的。故选D项。]
7．What is the passage mainly about
A．An application of drone tech．
B．An introduction to drone tech．
C．The terrible situation of wildlife．
D．The importance of wildlife protection．
A [主旨大意题。通读全文，尤其是第一段的第二、三句可知，文章主要介绍了无人机技术被应用于野生动物的保护。故选A项。]
Ⅳ．阅读七选五
Feeding bread to the ducks is a fond pastime for many of us，reminding us of happy childhood trips to the local park． 1 Eating it can cause our feathered friends to develop a condition called Angel Wing，which is when too much bread makes birds' feathers grow too quickly．This additional weight puts a strain on their muscles，causing their wings to twist and drop open，and if not treated fast，they can lose the ability to fly．
“Angel Wing can be cured if we reach birds before it has developed too severely，” says Caroline Simpson，a trustee of the UK charity Swan Lifeline． 2 Over the last 20 years the UK charity Swan Lifeline has rescued and treated more than 30，000 birds．Adult birds can develop heart disease by eating much bread，so it's important that we do our best to prevent this by feeding them the right kind of food．
3 Rotten(腐烂的) bread at the bottom of rivers and lakes allows bacteria to produce，spreading disease and attracting rats and other pests to our waterways，which can result in the presence of a mould(霉菌) called Aspergillus．It has the potential to kill waterfowl(水禽) and other wildlife if it gets into their lungs．
4 Giving birds the right food—like frozen peas，sweetcorn and some other plants—is good for both them and the environment．They can float on the water surface，and birds can enjoy them． 5
A．So we must stop feeding the ducks．
B．But did you know that bread actually puts birds in danger
C．This doesn't mean we have to stop fun trips to feed the ducks．
D．Bread can also cause harmful changes to the natural ecosystem．
E．What a scene it is to watch ducks eating bread floating on the river．
F．Otherwise the results can be serious—such as the loss of the wing．
G．So next time take a healthier alternative and do your bit to protect our precious wildlife．
【语篇解读】 本文是一篇说明文。文章指出为了保护动物的健康和生态系统，要选择正确的食物喂动物。
1．B [根据上文“Feeding bread to the ducks is a fond pastime for many of us，reminding us of happy childhood trips to the local park．”可知，人们爱喂鸭子面包，把喂鸭子当乐趣。B项承上启下。其中bread 是关键词，“in danger”与下文描述一致。故选B项。]
2．F [根据上文“‘Angel Wing can be cured if we reach birds before it has developed too severely，’ says Caroline Simpson，a trustee of the UK charity Swan Lifeline．”可知，Caroline Simpson 有办法在“天使之翼”发育得过于严重之前，治愈鸟类。F项是上文的反例。故选F项。]
3．D [根据下文“Rotten bread at the bottom of...which can result in the presence of a mould called Aspergillus．”可知，腐烂的面包对水源有危害。D项是对本段的概括，说明面包也会对生态系统产生危害。故选D项。]
4．C [根据下文“Giving birds the right food—like frozen peas，sweetcorn and some other plants—is good for both them and the environment．”可知，为了保护动物和环境，不是要禁止喂食物，而是要选择正确的食物。C项是对本段的概括，承上启下，目的是告诉我们要选择合适的食物。故选C项。]
5．G [根据上文“They can float on the water surface，and birds can enjoy them．”可知，鸟儿可以吃浮在水面上的食物。G项符合语境。故选G项。](共26张PPT)
Period 3
Unit 5 Into the wild
主题语境
人与自然之人与动植物
(1)seek to do sth． 试图/设法做某事
seek sth．from sb． 向某人请求/寻求某物
seek out 挑选出；找出
seek for/after 追求；寻求
(2)seek one's fortune 寻找致富/成功之路
课时学案 语言知识讲练(Understanding ideas)
1．seek v．寻找，寻求；试图；谋求
[名师点津] seek的过去式和过去分词都是sought。
[即学即练]——单句语法填空/完成句子
①We seek ______(find) a way to make us get along well with the people around us．
②If you have any questions，you can seek help ____ your teammates．
③在南瓜地里，我和我的三个兄弟姐妹比赛找出最大的南瓜。
In the pumpkin field，I compete with my three brothers and sisters to _______ the biggest pumpkin．
to find
from
seek out
measure...by/in... 用……来衡量……
make...to one's measure 按某人的尺寸做……
take measures (to do sth．) 采取措施(做某事)
2．measure v．量，测量；估量；有……长(或宽、高等) n．尺寸；措施
[名师点津] measure作动词表示“有……长/宽/高”时，为不及物动词，不用于被动语态和进行时，若此意义的短语作后置定语，要用动词-ing形式。
[即学即练]——单句语法填空/完成句子
①Education shouldn't be measured only ______ examination results．
②We study in a classroom _________(measure) 30 feet long and 20 feet wide．
③现在，他们应该采取强有力的措施来推进经济。
Right now，they should ____________________________ the economy forward．
by/in
measuring
take powerful measures to push
(1)determine to do sth． 决心做某事
determine sb．to do sth． 使某人决心做某事
(2)determined adj． 坚决的；有决心的；意志坚定的
be determined to do sth． 决心做某事
(3)determination n． 决心
3．determine v．测定，确定；决定；决心
[即学即练]——单句语法填空/一句多译
①The __________(determine) look on his face showed that he had enough confidence in himself．
②It takes hard work and _____________(determine) to reach the goals that we want to achieve．
③决心按时完成这项工作，他们立即着手干了。
a．__________________________________________________，they set out to work immediately．(原因状语从句)
b．_________________________________，they set out to work immediately．(形容词短语作状语)
determined
determination
Because they (were) determined to complete the job on time
Determined to complete the job on time
(1)It is amazing that... 令人惊讶的是……
(2)amaze v． 使吃惊；使惊讶
It amazes sb．that...＝What amazes sb．is that...
使某人惊讶的是……
(3)amazed adj． 吃惊的；惊讶的
be amazed at/by... 对……感到惊讶
be amazed to do sth． 因做某事感到惊讶
(4)amazement n． 吃惊；惊讶
to one's amazement 令某人惊讶的是
in amazement 惊愕地
4．amazing adj．惊人的，了不起的
[即学即练]——单句语法填空/一句多译
①If you come to visit China，you will experience a culture of ________
(amaze) depth and variety．
②From his _________(amaze) looks I knew he hadn't expect my early arrival．
amazing
amazed
③令我惊讶的是，他能凭记忆把这首诗完整地背出来。
a．_________________ he was able to recite the whole poem from memory．(形式主语)
b．_______________________ he was able to recite the whole poem from memory．(主语从句)
c．__________________，he was able to recite the whole poem from memory．(amazement)
It amazed me that
What amazed me was that
To my amazement
cut down on 减少；削减
cut in 插嘴；打断
cut off 切断；中断；隔绝
cut out 剪下；删除
cut up 切碎
5．cut down 砍倒；减少；缩短
[即学即练]——单句语法填空/完成句子
①It is impolite for children to cut __ when their seniors are talking．
②When their children lived far away from them，these old people felt cut ___ from the world．
③很多树木正在被砍伐，而且越来越多的森林消失，这使得动物们失去了它们赖以生存的家园。
Many trees _________________ and more and more forests are lost，making animals lose their homes to live in．
in
off
are being cut down
(1)survive sb．by... 比某人多活……
survive sth． (经历意外、战争、疾病等后)幸存，活下来
survive on sth． 靠某物(继续)维持生活
(2)survival n． 幸存
survivor n． 幸存者
6．survive v．活下来，幸存
[即学即练]——单句语法填空/完成句子
①He only ________(survive) the attack because he was wearing body armour．
②I don't know how you all manage to survive __ your husband's salary．
③生活不在于如何从暴风雨中生存，而在于学会在雨中翩翩起舞。
Life isn't about _______________________________________；it's about learning to dance in the rain．
survived
on
how to survive the storm/surviving the storm
(1)have an effect on 对……有影响
in effect 事实上
come into/take effect 生效，见效
bring/put...into effect 实施……，使……生效
(2)effective adj． 有效的
7．effect n．影响，结果
[即学即练]——单句语法填空/完成句子
①He said he graduated from a famous university，but __ effect，he never went to college．
②Keeping a diary in English is an _________(effect) way to improve our English writing ability．
③毫无疑问，“一带一路”倡议将会对所有相关国家产生巨大影响。
There is no doubt that “The Belt and Road” initiative will __________________ all the relevant countries．
in
effective
have a great
effect on
(教材P68)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．
我们对这种迷人的生物了解越多，它们在自然界中得以长久生存并保持其位置的可能性就越大。
the＋比较级，the＋比较级
[句式分析] 句中The more和the greater属于“the＋比较级，the＋比较级”句式，表示“越……就越……”。
The closer you stay to nature，the more you will appreciate her beauty．
你越接近大自然，就越能欣赏她的美。
“the＋比较级，the＋比较级”的具体用法如下：
(1)通常情况下，这一句式中的前者即前一个“the＋比较级(＋主语＋谓语)”相当于条件状语从句；后者即后一个“the＋比较级(＋主语＋谓语)”相当于主句；
(2)该句式表示后者随着前者的变化而变化；
(3)在表示将来意义的情况下，前者常用一般现在时，后者常用一般将来时；
(4)如果句意明确，该句式常以省略形式出现，如The more，the better。
[即学即练]——单句语法填空/完成句子
①The more careful you are，the _____(few) mistakes you'll make．
②The more you know，___ more you will realize how little you know．
③走在一条泥土路上的时候，天越黑我越害怕。
While I was walking on the dirt path，__________________________________________．
fewer
the
the darker it was，the more
frightened I was
Ⅰ．单句语法填空
1．It was truly _________(amaze) to see how much work goes into a Broadway musical．
2．With more and more forests cut _______，large quantities of soil are being washed away．
3．The _____(bad) our situation is，the calmer we should keep．
4．The people at war greatly need fresh food and water for ________ (survive)．
amazing
down
worse
survival
5．Hard as it is，the Chinese government is determined _______(open) up the new Silk Road．
6．The house is more than twenty meters long and _________(measure) six meters in width．
7．We can't ignore the effect of human activities ___ the global environment．
8．Many athletes seek __________(achieve) beyond the natural limits by training hard every day．
to open
measures
on
to achieve
Ⅱ．完成句子
1．我们越尊重大自然，大自然给予我们的馈赠就越多。(the＋比较级，the＋比较级)
________________________________ it will give us back．
2．有困难你可以向老师寻求帮助。(seek)
You can _______________________ when getting into trouble．
The more we respect nature，the more
seek help from your teacher
3．紧张但坚定，我把奖牌握在手中，去了学校。(determine)
_____________________，I held the medal in my hand and went to school．
4．我们衷心希望采取有效措施来保护海洋免受进一步的污染。(measure)
We sincerely hope that ____________________________________ the oceans from being further polluted．
Nervous but determined
effective measures can be taken to protect
Ⅲ．课文语法填空
At certain times of the year，we can see many animals move from one place to 1．_______．This movement 2．________ (call) migration．
They migrate 3．______(find)food，seek a partner，or in search of 4．______(warm) weather．Every fall，millions of beautiful monarch 5．___________(butterfly) begin the journey．They manage to travel a long distance to the places 6．_____ they will spend the winter．
another
is called
to find
warmer
butterflies
where
Scientists have found out that the monarch is able to tell 7．___ time of day．It then uses 8．___(it) eyes to measure the position of the sun．
But the population of them 9．__________(crash) in the last few years．
The more we know about them，the greater the chance they 10．__________
(survive)．
the
its
has crashed
will survive
