Period 4 单元语法讲练(Using language)
1．break down分解；(机器)损坏，出故障；(精神、身体等)垮掉；(谈判、关系)破裂；消除，驱除(人与人之间的隔阂等)
break in 强行进入；打断(谈话)，插嘴
break into 闯入；突然……起来
break out 爆发，突然发生
break through 突破；克服，战胜
break up 打碎，破碎；解散；结束；拆散
[即学即练]——写出下列句中break down的含义/完成句子
①If the printer should break down under guarantee，we would repair it at our expense． ___________
②If you keep on staying up so late，your health will break down sooner or later． ___________
③Overtime the matter can break down into the soil without giving out any toxic chemicals． ___________
④Getting young people together will help to break down the barriers between them． ___________
⑤Many people didn't think the peace talks would break down． ___________
⑥好消息一宣布，孩子们就欢呼起来。
Instantly the good news was announced，the children_______________．
2．take in吸收；理解；欺骗；收留
take off 起飞；匆匆离去；脱下；大获成功
take on 呈现；雇用；承担
take over 接收；接管；取代
take up 占用；占据；开始从事
[即学即练]——用take的相关短语填空/完成句子
①It was several minutes before I_____________what the old man was saying．
②Even though my studies_____________most of my day，I always help my mother with the housework．
③(读后续写之主旨升华)My parents urged me to be patient and never to let negative thoughts___________．
④随着科技的发展，我们的祖国呈现出新的面貌。
With the development of science and technology，our country________________．
P70
1．_______________原产于某地
2．_______________可爱的外表
3．_______________对……的威胁
4．_______________在一个封闭区域
5．_______________一家动物收容所
P71
1．_______________当今；当代；现代
2．_______________使……变成……
P72
1．_______________初级消费者
2．_______________依靠；信任
3．_______________提供能量
4．_______________次级消费者
5．_______________捕食；猎获
6．_______________使分解(为)；使变化(成)
7．_______________食物链
8．_______________生物
P73
1．_______________存在
2．_______________一只蜜蜂
3．_______________食品/粮食供给
4．_______________绝种
5．_______________弥补/补偿……
6．_______________以吃……为生；以……为主食
it作形式宾语
当动词不定式(短语)、动词 ing形式(短语)或从句作宾语时，为了保持句子结构的平衡，常用it作形式宾语，而将真正的宾语后置。此时的it无词义。常以it作形式宾语的动词有：feel，consider，find，believe，make，take，imagine，prove，think，suppose，regard，notice等。其用法如下：
1．it作形式宾语，代替动词不定式(短语)
They found it pleasant to work with us．
他们发现与我们一起工作很愉快。
He makes it a rule never to borrow money from others．
他的规矩是从不向别人借钱。
I consider it advisable to tell her beforehand．我认为还是事先告诉她好。
[温馨提示] 当真正的宾语是动词不定式(短语)时，动词不定式(短语)可以有自己的逻辑主语，该逻辑主语常由for 引出。
He likes to stay up late，so he often feels sleepy，which makes it difficult for him to concentrate on what he is doing．
他喜欢熬夜，所以他经常犯困，这使他难以专注于他正在做的事情。
2．it 作形式宾语，代替动词 ing形式(短语)
用动词 ing形式(短语)作真正的宾语时，其宾语补足语通常是no use，no good，a waste of time，worthwhile，hard work等。
I think it no good spending too much time watching TV．
我认为花太多时间看电视是没有好处的。
I feel it hard work persuading him into doing it．
我感觉说服他做那件事很难。
3．it 作形式宾语，代替从句
(1)在一些习惯用法中，it在 hate，like，love，appreciate，enjoy，take，have，depend on，rely on，count on等动词后作形式宾语，代替其后的宾语从句。
I hate it when he talks with his mouth full．
我讨厌他嘴里塞满了东西跟人说话。
I would appreciate it if you could take my suggestion into consideration．
如果你能考虑我的建议，我将感激不尽。
(2)在一些特殊结构中，用it作形式宾语。
take it for granted that．．．认为……是理所当然的
see to it that．．．确保……
owe it to．．．that．．．多亏……/幸亏……
He seemed to take it for granted that he should speak as a representative．
他似乎理所当然地认为他应当作为代表发言。
Would you see to it that she gets home early
你能保证她早早到家吗？
I owe it to my teacher that I made such rapid progress．
多亏了我的老师，我才取得了这么快的进步。
[即时训练]——单句语法填空/完成句子
①He disliked it_________she behaved badly before his mother．
②She can't stand_________when she is kept waiting．
③As is known to all，we should take________into account that we lose something else while we gain something．
④65%的学生认为学习英语的时候听英文歌更有效率。
65% of the students_______________________________when learning English．
⑤如果你考虑我的邀请，我将不胜感激。
________________you would consider my invitation．
⑥我认为躺在床上看书是不好的，这对你的眼睛有很大的伤害。
I_________________in bed，which does great harm to your eyes．
短文语境填空
I think 1．________important to protect the environment．But some people take it for granted 2．________the resources are endless，which has caused great harm to nature．Other people feel 3．________urgent 4．_________(preserve) the environment and save resources．Therefore，we should see to 5．________that effective measures should be taken to prevent pollution．At last，I think 6．________our duty to protect the earth．
第二篇课文(Developing ideas)
①pleasure n．[C]乐事，快事
②on behalf of代表
③association n．[C]协会，社团，联盟
④make it获得成功
⑤stretch v．延伸，绵延
⑥legendary adj．传说的，传奇的
⑦be named after．．．以……命名
⑧capture the imagination启发想象力
capture v．引起(注意、想象、兴趣)
⑨meet two criteria符合两个标准
criterion n．[C](pl．criteria)标准，准则
⑩rare locations罕见的地方
rare adj．稀有的，罕见的
rarely adv．罕有，很少，不常
biological processes生物学过程
biological adj．生物的，与生物有关的
biology n．[U]生物学；生理
biologist n．[C]生物学家
apparently adv．据说；看来，似乎
apparent adj．显而易见，明白易懂，显然
rise v．[熟词生义] 凸起，隆起，上升
the vast range巨大的变动范围
vast adj．巨大的；广大的
range n．(变动或浮动的)范围，界限，区间
altitude n．[C，usually sing．]海拔(高度)
variation n．[C，U]差异；变化
climatic conditions气候条件
climatic changes气候变化
climatic adj．与某一地区气候有关的
conditions n．[pl．](影响某事发生的)物质环境，状态，条件
a variety of各种各样的
variety n．[sing．](同一事物的)不同种类，多种式样
slide n．[C]幻灯片
a slide show 幻灯片放映
represent v．等于，相当于，意味着
additionally adv．另外，额外
additional adj．附加的，额外的
brave v．[熟词生义]勇敢面对，冒(风险)，经受(困难)
double v．(使)加倍，是……的两倍
home made adj．自制的，家里做的
elsewhere adv．在别处；去别处
the invasion of foreign species外来物种的入侵/涌入
invasion n．[C，U]侵犯，入侵；涌入
invade v．(尤指造成损害或混乱地)涌入，侵袭；武装入侵，侵略，侵犯
coexist with．．．与……共存，(尤指)与……和平共处
coexist v．共存，共处
secure adj．稳固的，可靠的；安全的
security n．[U]安全；平安
in return作为回报
contribute v．增加，增进，添加(到某物)
WHY SHENNONGJIA
Good morning，everyone． It is my great pleasure① to give a lecture here on behalf of② the Be at One with Nature Association③．
[1]As we know，in 2016，Shennongjia made it④ onto the UNESCO World Heritage List． But there are so many important places not yet on this list． So you might ask: why Shennongjia [2]Is it its forests that stretch⑤ on and on like great green seas？Is it the legendary⑥ father of Chinese herbal medicine，Shennong，after whom the park is named⑦？Or is it the mysterious creature called “Yeren” (wild man) that has captured the imagination⑧ of the world
[1]此处是as引导的非限制性定语从句，意为“众所周知”。
[2]本句用来回答why Shennongjia这个问题。that在此引导定语从句，并在从句中作主语，修饰先行词its forests。
UNESCO awarded Shennongjia this status because it meets two criteria⑨[3]required by the list． It contains a naturally balanced environment that allows the many and various species to live and prosper． [4]It is also one of the rare locations⑩ in the world where scientists can observe in real time the ecological and biological processes that occur as the plants and animals develop and evolve．
[3]此处是过去分词短语作后置定语，修饰two criteria。
[4]本句是主从复合句。where在此引导定语从句，修饰先行词one of the rare locations，该定语从句中又包含了一个that引导的定语从句，修饰先行词processes。在that引导的定语从句中，又包含了一个as引导的时间状语从句。
For the first criterion，Shennongjia is apparently one of the most “complete” natural areas in the world． The region rises from about 400 metres to over 3，000 metres above sea level，giving it the name the “Roof of Central China”． The vast range in altitude results in a great variation in climatic conditions ． This allows a wide variety of species to thrive． Some of the plants and animals have survived millions of years，and are regarded as living fossils．
For the second criterion，we can see that Shennongjia has incredible biodiversity． Look at this slide ． According to official statistics，over 3，000 plant species have been recorded there． This represents more than ten per cent of China's total floral richness． Shennongjia supports more than 600 vertebrate species，including the Golden Snub nosed Monkey and the Clouded Leopard． Additionally ，around 4，300 insect species have been recorded．
It is a challenge to look after so many species． In winter，scientists brave heavy snow and freezing temperatures to supply food to the Golden Snub nosed Monkey． Thanks to their efforts，the monkey's population has doubled since the 1980s． Their number reached over 1，300 in 2015 and continues to grow．
But the most impressive aspect of Shennongjia is the local people，who take things from nature without causing damage． I visited a local village which is known for its home made honey． What is special about the honey is that it is produced by the earliest species of Chinese bee． Every spring，the villagers place beehives around their houses to attract these wild bees from the forest． Although endangered elsewhere in China due to the invasion of foreign species ，the bees of Shennongjia have coexisted with the local people for centuries． By providing the bees with a secure home，the villagers collect their honey in return ． This is just one of the ways in which people of Shennongjia live and work in harmony with nature．
All of this explains why Shennongjia earned—and deserves—its place on the UNESCO World Heritage List，as well as highlighting how understanding，awareness and hard work have contributed towards protecting a unique and wonderful part of our natural world．
Thank you for listening．Now，does anyone have any questions？
为什么是神农架？
大家早上好。我很开心能代表人与自然和谐相处协会在这里发表演讲。
众所周知，神农架在2016年正式入选联合国教科文组织的《世界遗产名录》。世界上重要的地方那么多，但许多都没有被列入该名单。所以你可能会问：为什么是神农架？是因为它拥有像绿色海洋般广袤的森林吗？还是因为它是以中国草药之父神农命名？抑或是因为神秘的“野人”吸引了全世界的目光？
联合国教科文组织令神农架入选是因为它符合入选名录的两项标准：第一，它拥有一个自然平衡的环境，使许多不同的物种得以生存和繁衍。第二，它也是世界上人迹罕至之地之一，科学家们可以实时观察到植物和动物发展和进化过程中的生态学和生物学过程。
就第一项标准而言，我们可以自豪地说神农架是世界上最“完整”的自然区域之一。该地区的海拔从大约400米上升到3 000多米，被称为“华中屋脊”。海拔的巨大差异导致了迥然不同的气候环境，使得大量不同的物种得以繁衍生息。一些动植物生存了数百万年，被视为活化石。
对于第二个标准，我们可以看到神农架有着极其丰富的生物多样性。请看这张幻灯片。
根据官方统计，在神农架内有记录的植物物种超过3 000种，占到了中国全部开花植物的10%以上。神农架还有600多种脊椎动物，包括川金丝猴和云豹。此外，有记录的昆虫物种也达到了4 300种左右。
照顾如此多的物种是一项挑战。冬季，科学家们不畏暴雪和严寒为川金丝猴提供食物。也正是因为他们的付出，川金丝猴的数量相比于20世纪80年代增加了一倍，到2015年达到1 300多只，而且其数量还在持续增长。
不过神农架令人印象最深的地方还在于当地人的生活方式，他们从大自然中索取，但不会破坏生态平衡。我去了一个以自制蜂蜜而闻名的当地村庄参观。这种蜂蜜的独特之处在于它是由最古老的一种中华蜜蜂产的。每年春天，村民们就会在自家周围放置一些蜂箱，吸引森林中的野生蜜蜂。虽然在中国的其他地区，由于外来物种入侵，这种蜜蜂濒临灭绝，但是神农架的人们已经和这种蜜蜂共存了几个世纪。村民为它们提供安全住所，蜜蜂为人们提供蜂蜜。这只是神农架的人们与自然和谐相处的方式之一。
以上这些解释了为什么神农架能够并理应入选联合国教科文组织的《世界遗产名录》，同时也强调了人们的理解、认识和付出是如何促进对这一自然界独特且美好区域的保护的。
感谢大家的聆听。现在大家有什么问题吗？
Period 4
核心词汇
1．①(机器)损坏，出故障 ②(身体)垮掉 ③分解 ④消除 ⑤破裂 ⑥broke into cheers
2．①took in ②take up ③take over ④has taken on a new look
词块积累
P701．be native to 2．cute appearance 3．a threat to．．． 4．in an enclosed area 5．an animal shelter
P711．the present day 2．transform．．．into．．．
P721．primary consumers 2．rely on/upon 3．provide energy 4．secondary consumers 5．prey on/upon 6．break down 7．the food chain 8．living things
P731．in existence 2．a honey bee 3．food supply 4．become extinct 5．compensate for 6．live on
单元语法
[即时训练]
①when ②it ③it ④consider it more efficient to listen to English songs ⑤I'd appreciate it if ⑥think it no good reading
巩固落实
1．it 2．that 3．it 4．to preserve 5．it 6．it
1/1(共44张PPT)
Period 4
Unit 5 A delicate world
主题语境
人与自然—— 自然环境保护
课时学案 单元语法讲练(Using language)
1．break down分解；(机器)损坏，出故障；(精神、身体等)垮掉；
(谈判、关系)破裂；消除，驱除(人与人之间的隔阂等)
break in 强行进入；打断(谈话)，插嘴
break into 闯入；突然……起来
break out 爆发，突然发生
break through 突破；克服，战胜
break up 打碎，破碎；解散；结束；拆散
[即学即练]——写出下列句中break down的含义/完成句子
①If the printer should break down under guarantee，we would repair it at our expense． ____________________
②If you keep on staying up so late，your health will break down sooner or later． ____________
③Overtime the matter can break down into the soil without giving out any toxic chemicals． ____
(机器)损坏，出故障
(身体)垮掉
分解
④Getting young people together will help to break down the barriers between them． ____
⑤Many people didn't think the peace talks would break down． ____
⑥好消息一宣布，孩子们就欢呼起来。
Instantly the good news was announced，the children _______________．
消除
破裂
broke into cheers
take off 起飞；匆匆离去；脱下；大获成功
take on 呈现；雇用；承担
take over 接收；接管；取代
take up 占用；占据；开始从事
2．take in吸收；理解；欺骗；收留
[即学即练]——用take的相关短语填空/完成句子
①It was several minutes before I ______ what the old man was saying．
②Even though my studies ______ most of my day，I always help my mother with the housework．
③(读后续写之主旨升华)My parents urged me to be patient and never to let negative thoughts________．
④随着科技的发展，我们的祖国呈现出新的面貌。
With the development of science and technology，our country ____________________．
took in
take up
take over
has taken on a new look
P70
1．__________原产于某地
2．______________可爱的外表
3．_______________对……的威胁
4．________________在一个封闭区域
5．________________一家动物收容所
be native to
cute appearance
a threat to...
in an enclosed area
an animal shelter
P71
1．_____________当今；当代；现代
2．_______________使……变成……
P72
1．__________________初级消费者
2．____________依靠；信任
3．_____________提供能量
4．___________________次级消费者
the present day
transform...into...
primary consumers
rely on/upon
provide energy
secondary consumers
5．____________捕食；猎获
6．__________使分解(为)；使变化(成)
7．____________食物链
8．____________生物
prey on/upon
break down
the food chain
living things
P73
1．___________存在
2．___________一只蜜蜂
3．__________食品/粮食供给
4．______________绝种
5．______________弥补/补偿……
6．______以吃……为生；以……为主食
in existence
a honey bee
food supply
become extinct
compensate for
live on
it作形式宾语
当动词不定式(短语)、动词-ing形式(短语)或从句作宾语时，为了保持句子结构的平衡，常用it作形式宾语，而将真正的宾语后置。此时的it无词义。常以it作形式宾语的动词有：feel，consider，find，believe，make，take，imagine，prove，think，suppose，regard，notice等。其用法如下：
1．it作形式宾语，代替动词不定式(短语)
They found it pleasant to work with us．
他们发现与我们一起工作很愉快。
He makes it a rule never to borrow money from others．
他的规矩是从不向别人借钱。
I consider it advisable to tell her beforehand．
我认为还是事先告诉她好。
[温馨提示] 当真正的宾语是动词不定式(短语)时，动词不定式(短语)可以有自己的逻辑主语，该逻辑主语常由for 引出。
He likes to stay up late，so he often feels sleepy，which makes it difficult for him to concentrate on what he is doing．
他喜欢熬夜，所以他经常犯困，这使他难以专注于他正在做的事情。
2．it 作形式宾语，代替动词-ing形式(短语)
用动词-ing形式(短语)作真正的宾语时，其宾语补足语通常是no use，no good，a waste of time，worthwhile，hard work等。
I think it no good spending too much time watching TV．
我认为花太多时间看电视是没有好处的。
I feel it hard work persuading him into doing it．
我感觉说服他做那件事很难。
3．it 作形式宾语，代替从句
(1)在一些习惯用法中，it在 hate，like，love，appreciate，enjoy，take，have，depend on，rely on，count on等动词后作形式宾语，代替其后的宾语从句。
I hate it when he talks with his mouth full．
我讨厌他嘴里塞满了东西跟人说话。
I would appreciate it if you could take my suggestion into consideration．
如果你能考虑我的建议，我将感激不尽。
(2)在一些特殊结构中，用it作形式宾语。
take it for granted that...认为……是理所当然的
see to it that...确保……
owe it to...that...多亏……/幸亏……
He seemed to take it for granted that he should speak as a representative．
他似乎理所当然地认为他应当作为代表发言。
Would you see to it that she gets home early
你能保证她早早到家吗？
I owe it to my teacher that I made such rapid progress．
多亏了我的老师，我才取得了这么快的进步。
[即时训练]——单句语法填空/完成句子
①He disliked it _____ she behaved badly before his mother．
②She can't stand __ when she is kept waiting．
③As is known to all，we should take __ into account that we lose something else while we gain something．
when
it
it
④65%的学生认为学习英语的时候听英文歌更有效率。
65% of the students _________________________________________
when learning English．
⑤如果你考虑我的邀请，我将不胜感激。
___________________ you would consider my invitation．
⑥我认为躺在床上看书是不好的，这对你的眼睛有很大的伤害。
I ____________________ in bed，which does great harm to your eyes．
consider it more efficient to listen to English songs
I'd appreciate it if
think it no good reading
短文语境填空
I think 1．__ important to protect the environment．But some people take it for granted 2．____ the resources are endless，which has caused great harm to nature．Other people feel 3．__ urgent 4．______________
(preserve) the environment and save resources．Therefore，we should see to 5．__ that effective measures should be taken to prevent pollution．At last，I think 6．__ our duty to protect the earth．
it
that
it
to preserve
it
it
①pleasure n．[C]乐事，快事
②on behalf of代表
③association n．[C]协会，社团，联盟
④make it获得成功
⑤stretch v．延伸，绵延
课下预习 第二篇课文(Developing ideas)
⑥legendary adj．传说的，传奇的
⑦be named after...以……命名
⑧capture the imagination启发想象力
capture v．引起(注意、想象、兴趣)
⑨meet two criteria符合两个标准
criterion n．[C](pl．criteria)标准，准则
⑩rare locations罕见的地方
rare adj．稀有的，罕见的
rarely adv．罕有，很少，不常
biological processes生物学过程
biological adj．生物的，与生物有关的
biology n．[U]生物学；生理
biologist n．[C]生物学家
apparently adv．据说；看来，似乎
apparent adj．显而易见，明白易懂，显然
rise v．[熟词生义] 凸起，隆起，上升
the vast range巨大的变动范围
vast adj．巨大的；广大的
range n．(变动或浮动的)范围，界限，区间
altitude n．[C，usually sing．]海拔(高度)
variation n．[C，U]差异；变化
climatic conditions气候条件
climatic changes气候变化
climatic adj．与某一地区气候有关的
conditions n．[pl．](影响某事发生的)物质环境，状态，条件
a variety of各种各样的
variety n．[sing．](同一事物的)不同种类，多种式样
slide n．[C]幻灯片
a slide show 幻灯片放映
represent v．等于，相当于，意味着
additionally adv．另外，额外
additional adj．附加的，额外的
brave v．[熟词生义]勇敢面对，冒(风险)，经受(困难)
double v．(使)加倍，是……的两倍
home-made adj．自制的，家里做的
elsewhere adv．在别处；去别处
the invasion of foreign species外来物种的入侵/涌入
invasion n．[C，U]侵犯，入侵；涌入
invade v．(尤指造成损害或混乱地)涌入，侵袭；武装入侵，侵略，侵犯
coexist with...与……共存，(尤指)与……和平共处
coexist v．共存，共处
secure adj．稳固的，可靠的；安全的
security n．[U]安全；平安
in return作为回报
contribute v．增加，增进，添加(到某物)
WHY SHENNONGJIA
Good morning，everyone．It is my great pleasure① to give a lecture here on behalf of② the Be at One with Nature Association③．
[1]As we know，in 2016，Shennongjia made it④ onto the UNESCO World Heritage List．But there are so many important places not yet on this list．So you might ask: why Shennongjia [2]Is it its
forests that stretch⑤ on and on like great green seas？Is it the legendary⑥ father of Chinese herbal medicine，Shennong，after whom the park is named⑦？Or is it the mysterious creature called “Yeren” (wild man) that has captured the imagination⑧ of the world
[1]此处是as引导的非限制性定语从句，意为“众所周知”。
[2]本句用来回答why Shennongjia这个问题。that在此引导定语从句，并在从句中作主语，修饰先行词its forests。
UNESCO awarded Shennongjia this status because it meets two criteria⑨[3]required by the list．It contains a naturally-balanced environment that allows the many and various species to live and prosper．[4]It is also one of the rare locations⑩ in the world where scientists can observe in real time the ecological and biological processes that occur as the plants and animals develop and evolve．
[3]此处是过去分词短语作后置定语，修饰two criteria。
[4]本句是主从复合句。where在此引导定语从句，修饰先行词one of the rare locations，该定语从句中又包含了一个that引导的定语从句，修饰先行词processes。在that引导的定语从句中，又包含了一个as引导的时间状语从句。
For the first criterion，Shennongjia is apparently one of the most “complete” natural areas in the world．The region rises from about 400 metres to over 3，000 metres above sea level，giving it the name the “Roof of Central China”．The vast range in altitude results in a great variation in climatic conditions ．This allows a wide variety of species to thrive．Some of the plants and animals have survived millions of years，and are regarded as living fossils．
For the second criterion，we can see that Shennongjia has incredible biodiversity．Look at this slide ．According to official statistics，over 3，000 plant species have been recorded there．This represents more than ten per cent of China's total floral richness．Shennongjia supports more than 600 vertebrate species，including the Golden Snub-nosed Monkey and the Clouded Leopard．Additionally ，around 4，300 insect species have been recorded．
It is a challenge to look after so many species．In winter，scientists brave heavy snow and freezing temperatures to supply food to the Golden Snub-nosed Monkey．Thanks to their efforts，the monkey's population has doubled since the 1980s．Their number reached over 1，300 in 2015 and continues to grow．
But the most impressive aspect of Shennongjia is the local people，who take things from nature without causing damage．I visited a local village which is known for its home-made honey．What is special about the honey is that it is produced by the earliest species of Chinese bee．Every spring，the villagers place beehives around their houses to attract these wild bees from the forest．Although endangered elsewhere in China due to the invasion of foreign species ，the bees of Shennongjia have coexisted with the local people for centuries．By providing the bees with a secure home，the villagers collect their honey in return ．This is just one of the ways in which people of Shennongjia live and work in harmony with nature．
All of this explains why Shennongjia earned—and deserves—its place on the UNESCO World Heritage List，as well as highlighting how understanding，awareness and hard work have contributed towards protecting a unique and wonderful part of our natural world．
Thank you for listening．Now，does anyone have any questions？
为什么是神农架？
大家早上好。我很开心能代表人与自然和谐相处协会在这里发表演讲。
众所周知，神农架在2016年正式入选联合国教科文组织的《世界遗产名录》。世界上重要的地方那么多，但许多都没有被列入该名单。所以你可能会问：为什么是神农架？是因为它拥有像绿色海洋般广袤的森林吗？还是因为它是以中国草药之父神农命名？抑或是因为神秘的“野人”吸引了全世界的目光？
联合国教科文组织令神农架入选是因为它符合入选名录的两项标准：第一，它拥有一个自然平衡的环境，使许多不同的物种得以生存和繁衍。第二，它也是世界上人迹罕至之地之一，科学家们可以实时观察到植物和动物发展和进化过程中的生态学和生物学过程。
就第一项标准而言，我们可以自豪地说神农架是世界上最“完整”的自然区域之一。该地区的海拔从大约400米上升到3 000多米，被称为“华中屋脊”。海拔的巨大差异导致了迥然不同的气候环境，使得大量不同的物种得以繁衍生息。一些动植物生存了数百万年，被视为活化石。
对于第二个标准，我们可以看到神农架有着极其丰富的生物多样性。请看这张幻灯片。
根据官方统计，在神农架内有记录的植物物种超过3 000种，占到了中国全部开花植物的10%以上。神农架还有600多种脊椎动物，包括川金丝猴和云豹。此外，有记录的昆虫物种也达到了4 300种左右。
照顾如此多的物种是一项挑战。冬季，科学家们不畏暴雪和严寒为川金丝猴提供食物。也正是因为他们的付出，川金丝猴的数量相比于20世纪80年代增加了一倍，到2015年达到1 300多只，而且其数量还在持续增长。
不过神农架令人印象最深的地方还在于当地人的生活方式，他们从大自然中索取，但不会破坏生态平衡。我去了一个以自制蜂蜜而闻名的当地村庄参观。这种蜂蜜的独特之处在于它是由最古老的一种中华蜜蜂产的。每年春天，村民们就会在自家周围放置一些蜂箱，吸引森林中的野生蜜蜂。虽然在中国的其他地区，由于外来物种入侵，这种蜜蜂濒临灭绝，但是神农架的人们已经和这种蜜蜂共存了几个世纪。村民为它们提供安全住所，蜜蜂为人们提供蜂蜜。这只是神农架的人们与自然和谐相处的方式之一。
以上这些解释了为什么神农架能够并理应入选联合国教科文组织的《世界遗产名录》，同时也强调了人们的理解、认识和付出是如何促进对这一自然界独特且美好区域的保护的。
感谢大家的聆听。现在大家有什么问题吗？
THANKS
