2021学年Unit 3 Environmental Protection课后复习题

这是一份2021学年Unit 3 Environmental Protection课后复习题，共15页。试卷主要包含了vlume n等内容，欢迎下载使用。
Period Four　Using Language & Other Parts

Read the passage carefully and choose the best answer.
1．What’s the passage mainly about?
A．The beauty of the Li River.
B．What some tourists did led to the water pollution.
C．Some measures to reduce water pollution in the Li River.
D．The ways to increase crop production.
答案　C
2．What is the main idea of the second paragraph?
A．Some tourists didn’t care about the Li River.
B．What have caused water pollution in the Li River?
C．Some tourists threw garbage into the Li River.
D．The local population rose rapidly.
答案　B
3．Which of the following statements is NOT true according to the passage?
A．The chemicals have caused a decrease in the number of fish species.
B．The reputation of the Li River has a negative effect on the river’s water quality.
C．The media has a good effect on encouraging greater use of clean energy.
D．The local government did nothing to protect the water quality in Li River.
答案　D
4．We can learn from the last two paragraphs that .
A．people can do nothing to reduce water pollution in Li River
B．tourists are not allowed to visit the Li River
C．the local authorities never inspect the Li River
D．some measures have been taken to reduce water pollution in Li River
答案　D

Ⅰ.重点单词
1．reform vi.& vt.改革；(使)改正；改造 n．改革；变革；改良
2．undergo vt.经历；经受(变化、不快等)
3．implement vt.使生效；贯彻；执行
4．moderate adj.适度的；中等的；温和的 vi.& vt.缓和；使适中
5．submit vt.& vi.提交；呈递；屈服
6．tropical adj.热带的；来自热带的
7．nuclear adj.原子能的；核能的；原子核的
8．sensitive adj.敏感的；善解人意的；灵敏的
9．originate vi.& vt.起源；发源；创立
10．volume n．量；体积；(成套书籍中的)一卷
11．restore vt.恢复；使复原；修复
12．dozen n．(一)打；十二个
13．regulation n．章程；规章制度
14．disposal n．去掉；清除；处理
15．fine vt.对……处以罚款
16．campaign n．运动；战役 vi.& vt.参加运动；领导运动
17．harmonious adj.和谐的→harmony n．和谐
18．annual adj.每年的；一年的 n．年刊；年鉴→annually adv.一年一度地
19．conservation n．对(环境、文物等)保护；保持→conserve vt.保护；保存→conservative adj.保守的；守旧的①
20．inspection n．检查；查看；视察→inspect vt.视察；检查
21．tolerate vt.忍受；包容；容许→tolerant adj.宽容的；容忍的②
22．agenda n．议程表；议事日程
掌握规律　巧记单词
①conserve vt.保护；保存→conservation n.对(环境、文物等)保护；保持　例如：inspire→inspiration
②tolerate vt.忍受；包容；容许→tolerant adj.宽容的；容忍的　例如：resist→resistant

Ⅱ.核心短语
1．in search of寻找
2．in response to回应……
3．be responsible for为……负责
4．bring about引起；导致
5．die out灭绝
6．on behalf of代表
7．have an effect on对……有影响
8．contribute to导致；促成
9．end up最终……
10．set up 建立
11．carry out执行
Ⅲ.经典句式
1．“介词＋关系代词”引导非限制性定语从句
Previously，water quality in the Li River had suffered greatly from an increasing volume of tourists，many of whom frequently threw garbage into the river.
以往，漓江的水质因为游客量的增长遭到了严重破坏，许多游客经常将垃圾扔入水中。
2．with复合结构
Water pollution levels increased，with more household and commercial waste ending up in the river.
随着越来越多的家庭垃圾和商业垃圾流入江中，水污染水平不断上升。
3．现在分词作结果状语
These chemicals led to severe water quality issues，causing a decrease in the number of fish species.
这些化学物质导致严重的水质问题，导致鱼类数量的减少。
4．It is/was＋过去分词＋that...
It is believed that the beauty of the Li River will be preserved for generations to come.
人们相信，漓江的美会为后代保存下来。

重点词汇
bring about引起；导致
bring up教育，抚养(孩子)；提出(议题等)；呕吐
bring out使显现；阐明；出版
bring down降低；减少
bring in引进；赚得

(1)What brought about the change in his attitude?
什么导致了他态度的变化？
(2)The examples bring out the meaning of this word.
这些例子阐明了这个单词的意思。
(3)I tried to get them to bring down the price，but they refused.
我努力让他们降价，但是他们拒绝了。
(4)The sale of the sculpture brought in about $45,000.
卖这座雕像赚了45 000美元。
According to the report submitted by researchers，between 20 and 25 percent of all annual carbon dioxide emissions are caused by the destruction of tropical forests.根据研究者提交的报告，每年20%到25%的二氧化碳的排放量是热带森林的破坏导致的。
submit vt.& vi.提交；呈递；屈服
submit to服从于；屈服于
submit sth.to sb.将某物提交给某人
submit (oneself) to屈从于……

(1)Headteachers yesterday submitted a claim for a 9 per cent pay rise.
校长们昨天提交了一份要求加薪9%的声明。
(2)Mrs Jones submitted to an operation on her right knee to relieve the pain.
琼斯夫人不得已接受了一次在她的右膝上的手术以减轻疼痛。
(3)To save his son，he had to submit himself(he) to the rich man.
为了救自己的儿子，他只好屈从于那个有钱人。
The expression “smog” originated in Britain and means a combination of “smoke” and “fog”.“雾霾”这种表达起源于英国，意思是“烟”和“雾”的结合。
originate vi.& vt.起源；发源；创立
※origin n.起源；起因
※original adj.最初的；原来的
※originally adv.原来；起初

(1)The flu is thought to have originated in the small country.
这种流感被认为起源于那个小国家。
(2)The famous scientist originated the theory in the 17th century.
那位著名科学家在17世纪创立了这个理论。
(3)The boy is interested in the origin of life on earth.
这个男孩对地球上生命的起源感兴趣。
(4)I think you should go back to your original(origin) plan.
我认为你应该回去执行你原来的计划。
(5)Originally(origin)，we had intended to go to Italy，but then we won the trip to Greece.
起初，我们打算去意大利，但后来赢得了去希腊旅行的机会。
The construction of waste water treatment facilities improved the water quality and water conservation.废水处理设施的建设改善了水质和水源保护。
conservation n．对(环境、文物等)保护；保持
※under conservation被保护
※conserve v.保护，保存；节省，节约
※conservative adj.保守的

(1)Unfortunately，the young man isn’t interested in wildlife conservation.
不幸的是，这个年轻人对野生生物保护不感兴趣。
(2)The project is intended to encourage the conservation(conserve) of fuel.
这个项目旨在鼓励节约燃料。
(3)He couldn’t accept the conservative(conserve) views of his parents.
他无法接受父母的保守观念。
[句型转换]
(4)It is said that the memorial is being conserved now.
It is said that the memorial is under conservation.
At the same time，they started to carry out inspections regularly and fine tourist organisations for abuses.同时，他们开始进行定期检查，对滥用职权的旅游组织处以罚款。
carry out执行
carry on (with/doing) sth.继续(做)某事
carry away拿走；被吸引(迷住)；带走；冲走
carry off成功地对付；赢得；获得(奖品、荣誉等)
carry through达成；贯彻；使渡过难关

(1)Determined to carry out the plan as planned，they made very careful preparations.
决心按计划执行计划，他们做了周密的准备。
(2)She is determined to carry on with her education.
她决定继续她的教育。
(3)His courage and determination carried him through.
他的勇气和决心使他渡过了难关。
(4)You’ll have an accident if you carry on driving(drive) like that.
如果你继续那样开车的话会出事故的。
inspection n．检查；查看；视察
※inspect vt.仔细检查；检阅；视察
※inspector n.检查员；督察员

(5)The headmaster went on a tour of inspection of all the classrooms.
校长巡视了所有的教室。
(6)These plants are regularly inspected for disease.
这些植物定期接受病害检查。
(7)When he saw the inspector(inspect) at the door，he felt a little nervous.
他看到门口的检察员时，感觉有点紧张。
[高级表达]
(8)The teacher walked around and inspected their work.
The teacher walked around，inspecting their work.(用非谓语动词改写)
The villagers could no longer tolerate the situation.村民们不能再忍受这种情况了。
tolerate vt.忍受；包容；容许
※tolerate doing sth.忍耐做某事
※tolerance n.宽恕；忍耐
※tolerant adj.宽容的；容忍的

(1)This sort of behavior will not be tolerated here.
这种行为在这里是不被容忍的。
(2)She can’t tolerate being called(call) a liar.
她不能容忍被叫作撒谎者。
(3)She had no tolerance(tolerate) for jokes of any kind.
她容不得开任何玩笑。
(4)He has a very tolerant(tolerate) attitude towards other religions.
他对其他宗教持非常包容的态度。
经典句式
Water pollution levels increased，with more household and commercial waste ending up in the river.随着越来越多的家庭垃圾和商业垃圾流入江中，水污染水平不断上升。
※本句中的with more household and commercial waste ending up in the river 是with复合结构，其中ending up in the river作宾补。
※with复合结构的构成是：with＋宾语＋宾补。此结构可作定语，也可作状语，表示伴随、方式、条件、原因等。
其具体构成如下：
①with＋宾语＋介词短语
②with＋宾语＋形容词/副词/名词
③with＋宾语＋现在分词(表示主动或动作正在进行)
④with＋宾语＋过去分词(表示被动或动作已完成)
⑤with＋宾语＋动词不定式(表示动作将要发生)

(1)A young girl went in，with a book in her hand.
一个年轻女孩进来了，她手里拿着一本书。
(2)With so much work filling(fill) in his mind，he couldn’t sleep well.
他脑子里满是工作，睡不好觉。
(3)The man was brought in with his hands tied(tie) behind his back.
这个人双手被绑在身后被带了进来。
(4)With the teacher to help(help) me，I will make great progress.
有老师帮助我，我将取得很大的进步。
These chemicals led to severe water quality issues，causing a decrease in the number of fish species.这些化学物质导致严重的水质问题，导致鱼类数量的减少。
※本句中的causing a decrease in the number of fish species是现在分词短语作结果状语。
※现在分词短语具有副词的特征，用作副词时，充当时间、条件、原因、伴随、结果、方式以及让步状语。

(1)Working hard，you will reach your goal sooner or later.
只要努力学习，你迟早会达到你的目标的。(条件状语)
(2)Lacking money，his parents still managed to send him to university.
尽管缺钱，他的父母还是设法送他上了大学。(让步状语)
(3)The vase fell off the table，breaking into pieces.
花瓶从桌子上掉了下来，摔成了碎片。(结果状语)
(4)The man made a skateboard for his son using the old materials.
这个人用这些旧材料给儿子做了一个滑板。(方式状语)
[高级表达]
(5)The man stood there and he was pointing to the tall building.
The man stood there，pointing to the tall building.(用非谓语动词改写)
(6)As she was ill，she had to be absent from class.
Being ill，she had to be absent from class.(用非谓语动词改写)

Ⅰ.单句语法填空
1．No matter what happens，he will carry out his original plan.
2．I can’t tolerate working(work) with such a selfish person.
3．On closer inspection(inspect)，dozens of problems emerge.
4．It is said that the original(originate) owner of the house is a dentist.
5．The new technology has brought about some major changes up to now.
6．The boss was satisfied with the report submitted(submit) by that young man.
7．The old professor walked in the park，with his pet dog following(follow) him.
8．She works for an organization calling for the conservation(conserve) of the countryside.
Ⅱ.完成句子
9．They stayed there for a long time，restoring the old temple.
他们在那里待了很长时间，修复了那座古庙。
10．With so much homework to do，I won’t go to see the film tonight.
有那么多作业要做，今晚我不去看电影了。
11．It was reported that she had won the game.
据报道她赢了这场比赛。
12．China won 26 gold medals，many of which were won by women.
中国赢得了26枚金牌，其中许多是女子赢得的。
Ⅲ.选词填空
下面的短文是P32－33的课文改写，请从下表中选择合适的词汇并用其适当的形式完成此文。

The beautiful Li River and its 13.amazing surrounding scenery is one of the most well­known tourist destinations in China’s Guangxi Zhuang Autonomous Region.However，its reputation as a top destination has had negative 14.effects on the river’s water quality.15.Previously，water quality in the Li River had suffered 16.greatly from an increasing volume of tourists，many of whom frequently threw garbage into the river.In order to feed more people，more chemicals were used 17.to increase crop production.These chemicals led to severe water quality issues,18.causing a decrease in the number of fish species.The local authorities took some measures 19.to reduce pollution in Li River.With these measures，it is believed that the beauty of the Li River will be preserved for generations 20.to come.In addition，the 21.ambitious “Water Ten Plan” is also now tackling water pollution across the country.With such campaigns in effect，China’s waterways are heading towards a clean and 22.sustainable future.

基础巩固
Ⅰ.单词拼写
1．The young man was asked to help plan Labour’s election campaign.
2．The applicants have to undergo a 48­hour wait for the results of tests.
3．The Danes have environmental issues high on their agenda(议事日程)．
4．You’d better keep the room warm，for the old man is sensitive to the cold.
5．The team enjoyed only moderate(中等的) success last season.
6．The cost per household for the collection and disposal(处理) of household rubbish is ￡50 a year.
7．The union has proposed new regulations(规章制度) to control the hours worked by its employees.
8．The government promised to implement(使生效)a new system to control financial institutions.
Ⅱ.单句语法填空
9．Every effort was made to get peace restored(restore) to the area.
10．The little boy couldn’t tolerate being laughed(laugh) at in public.
11．The young man fined(fine) by the police felt ashamed of himself.
12．Word came that the new stadium was under inspection(inspect) then.
13．It is said that the exhibition is held in this area annually(annual)．
14．When he came to power，he had dozens of rules reformed(reform)．
15．Living in such a harmonious(harmony) family，he felt very happy.
Ⅲ.单句写作
16．许多书被送到那个地区去帮助那些贫穷的孩子。(dozens of)
Dozens of books were sent to that area to help those poor children.
17．所有的工作都完成了，女孩离开办公室回家了。(with复合结构)
With all the work finished，the girl left the office and went home.
18．我不准备接受这种痛苦的治疗过程。(submit)
I was not prepared to submit to this painful process of treatment.
19．他父亲生病了，所以他代表父亲出席了典礼。(on behalf of)
His father was ill，so he attended the ceremony on behalf of his father.
20．他想做的事情就是改革这些旧制度。(reform)
What he wants to do is to reform these old regulations.
能力提升
Ⅳ.阅读理解
On November 7，Lewis Pugh completed a one­kilometer swim in the freezing waters of King Edward Cove，off South Georgia in Antarctica.He was wearing only his swimming glasses，cap and speedos!
Pugh is an advocate for our oceans and seas，working to protect these ecosystem with their large diversity of marine(海洋的) life.When asked why he doesn’t wear a wetsuit，Lewis says，“I ask world leaders to do everything they can to protect our oceans.Sometimes the steps they need to take are difficult and unpopular.If I’m asking them to be courageous，I must also be.Swimming in a wetsuit would not send the right message.”
It took Pugh about 19 minutes to complete the one­kilometer swim in Antarctica where the water averaged about 1.6 degrees Celsius(摄氏度)．He says that his body can only tolerate about 20 minutes in the freezing waters before it starts shutting down.As he swims，his body temperature steadily drops，which in turn causes his muscle(肌肉) control to drop，slowing him down.When he is done with his swim，his support team rushes him to a hot shower and it takes almost an hour for his body temperature to return to normal.
Doctors and Pugh caution that one must receive months of training to swim in such cold waters.Even expert swimmers who are unused to freezing water can drown within minutes because of the physical shock experienced by the body.Pugh says he trained for six months before this swim.
This is not the first time that Lewis has swum in dangerous conditions.In 2007，he swam one kilometer in the North Pole to draw attention to the melting Arctic ice due to climate change.In 2015，he swam in the Bay of Whales in Antarctica’s Ross Sea as part of his successful campaign to help set up a marine reserve there.
语篇解读　本文是一篇记叙文。文章讲述了Lewis Pugh 为了呼吁政府采取措施保护海洋而在平均水温仅有1.6°C的极地海洋不穿防寒泳衣游泳的勇敢事迹。

1．Why did Lewis Pugh swim without a wetsuit?
A．To swim faster.
B．To show his bravery.
C．To build up his body.
D．To win public attention.
答案　B
解析　推理判断题。根据第二段中的“I ask world leaders to do everything they can to protect our oceans.Sometimes the steps they need to take are difficult and unpopular.If I’m asking them to be courageous，I must also be.Swimming in a wetsuit would not send the right message.”可知，他不穿防寒泳衣是为了展示他的勇敢，故选B。
2．What does the underlined word “it” in Paragraph 3 refer to?
A．His body.
B．The water.
C．His body temperature.
D．The water temperature.
答案　A
解析　代词指代题。上文提到他的身体在冰水里游泳只能忍受约20分钟，下文中提到他游泳时体温在慢慢下降，肌肉控制力也在下降，由此可推测出此处的it指的是his body，故选A。
3．What’s Pugh’s advice about swimming in freezing waters?
A．One must be fully prepared.
B．One should be expert at swimming.
C．One should be ready to take on challenges.
D．One must be used to long­distance swimming.
答案　A
解析　推理判断题。根据第四段中的“Doctors and Pugh caution that one must receive months of training to swim in such cold waters.”可知，一个人必须接受几个月的训练才可以在如此冰冷的水里游泳，即要做足准备工作才行，故选A。
4．What may be the best title for the text?
A．Lewis Pugh：Swimming for a Cause
B．How to Survive a Swim in Cold Waters
C．How to Prepare for Extreme Swimming
D．Lewis Pugh：Achieving the Impossible
答案　A
解析　标题归纳题。文章主要讲述的是Lewis Pugh 为了呼吁政府采取措施保护海洋而在极寒的水里游泳，用实际行动展示他保护海洋的决心和勇气，由此可知A项是最佳标题。
Ⅴ.完形填空
In 2008，teachers and students from Johnson County Community College(JCCC) traveled to Las Pintas，Mexico，to help build a clinic in the poor community.This work was the beginning of JCCC’s students to 1 their classroom knowledge to help the developing world.It has 2 me.
In 2007，upon graduating from high school，I was 3 what career I wanted to go in for.I began my education at Johnson County Community College and attended general education classes.In my second term，I was 4 to be a member of the JCCC International Service that traveled to Las Pintas to offer health care.
In Las Pintas we taught the local people how to 5 common health problems and social issues that many of their neighbors were experiencing.In return，we got the chance to learn their Spanish 6 and their daily life.This model of service between JCCC and Las Pintas is a rich cross­cultural 7 that not only helped the Las Pintas people but also broadened our view greatly.
I 8 to use my experience in Las Pintas in my daily life.I now work as a nurse at a hospital with a large Spanish 9 .I truly enjoy caring for Spanish patients 10 they remind me of my time in Las Pintas.As a result of my 11 with the JCCC service learning program over the past years，I am able to 12 with patients from different cultures.I love 13 my own community and have continued my involvement with the JCCC program.
Gandhi wrote that “The best way to find yourself is to lose yourself in the service of others.” In Las Pintas，I 14 myself a career that will be with me throughout my 15 .
语篇解读　这是一篇夹叙夹议文。作者叙述了在Las Pintas提供卫生保健服务的经历以及此经历对自己的影响，得出了“寻找自我的最好的办法就是忘我地为他人服务”的人生感悟，并决定一生都要从事这个职业。

1．A.expand B．evaluate
C．explain D．employ
答案　D
解析　expand扩张；evaluate评价；explain解释；employ应用，运用，使用。根据常识可知，是“运用知识”。故选D。
2．A.fled B．trapped
C．changed D．disturbed
答案　C
解析　flee逃走；trap使陷入困境；change改变；disturb打扰。根据下文可知，作者在高中刚毕业的时候不确定自己想要从事什么职业，这次在Las Pintas提供卫生保健服务的经历不仅开阔了作者的视野，还影响了作者以后的工作，所以说这次经历改变了作者。故选C。
3．A.amazed B．changeable
C．unhappy D．uncertain
答案　D
解析　amazed惊奇的；changeable多变的；unhappy不开心的；uncertain不确定的。2007年高中毕业时，我不确定自己想要从事什么职业。故选D。
4．A.relieved B．ashamed
C．honored D．surprised
答案　C
解析　relieved宽慰的；ashamed羞愧的；honored荣幸的； surprised感到惊讶的。第二个学期，我很荣幸成为约翰逊县社区学院国际服务组织的一员。故选C。
5．A.think about B．deal with
C．find out D．result in
答案　B
解析　think about考虑；deal with处理；find out找出；result in导致。在Las Pintas我们教给当地人如何处理常见的健康问题以及他们的许多邻居正在经历的社会问题。故选B。
6．A.culture B．courses
C．hobbies D．service
答案　A
解析　culture文化；course课程；hobby业余爱好；service服务。从下句中的cross­cultural可知这是一种跨文化经历，所以此处指了解西班牙文化。故选A。
7．A.result B．challenge
C．reason D．experience
答案　D
解析　result结果；challenge挑战；reason原因；experience经历。根据空后的“that not only helped the Las Pintas people but also broadened our view greatly”可知，这是一次跨文化经历。故选D。
8．A.continue B．roll
C．remember D．stop
答案　A
解析　continue继续；roll滚动；remember记得；stop停止。在日常生活中，我继续使用在Las Pintas获得的经验。故选A。
9．A.language B．power
C．population D．support
答案　C
解析　我现在在一家医院做护士，那里有很多西班牙人。a large population人口众多。故选C。
10．A.if B．as
C．until D．though
答案　B
解析　if如果；as因为，由于；until直到……为止；though尽管。后半句解释了作者喜欢照顾西班牙病人的原因，故此处需要一个表示原因的连词，故选B。
11．A.relationship B．work
C．visit D．agreement
答案　B
解析　relationship关系；work工作；visit拜访，访问；agreement同意。作者参与约翰逊县社区学院服务项目是去工作的，给当地人提供服务。故选B。
12．A.compare B．construct
C．communicate D．compete
答案　C
解析　compare比较；construct建造；communicate交流；compete竞争。过去几年，由于我在约翰逊县社区学院服务学习项目中所做的工作，我能够与来自不同文化背景的病人进行交流。故选C。
13．A.serving B．introducing
C．considering D．conducting
答案　A
解析　serve服务；introduce介绍；consider考虑；conduct表现。我喜欢服务我自己的社区，并且继续参与约翰逊县社区学院服务项目。故选A。
14．A.taught B．owed
C．showed D．promised
答案　D
解析　在Las Pintas，我决定从事伴随我一生的职业。promise oneself决定。故选D。
15．A.attempt B．celebration
C．lifetime D．separation
答案　C
解析　attempt企图，试图；celebration庆祝；lifetime一生；separation分开。参考上题解析。throughout one’s lifetime贯穿某人的一生。故选C。
Ⅵ.语法填空
In 1916 the United States started the world’s first national park system.Since then，it
1. (serve) as a model for other countries that try to better protect the environment and let people enjoy nature.
A national park is a reserve of land 2. (declare) and owned by the government，protected from human development and pollution.Now China is planning its own national park system.On Dec.5, China passed two pilot plans for national parks 3. (protect) the giant panda，Siberian tiger and Amur leopard.
But national parks are not only for animals.In mid­2015，China started to build pilot national parks in nine provinces.4. most famous one is the Sanjiangyuan national park on the Qinghai­Tibet Plateau.It aims to protect China’s water source.Sanjiangyuan，or “Source of Three Rivers”， is 5. the Yellow, Yangtze, and Lancang rivers start.
Before this national park project，China had set aside thousands of nature parks，forests and scenic areas 6. protected areas.However，they haven’t been managed well 7. too
many different organizations have been involved in the protection of the different areas，according to the China Daily.Under the new plan, national parks will cover big areas and include different protected areas.
For example，the habitats of wild pandas lie in different provinces and 8. (cut) into even smaller pieces by railways，roads and power lines.This makes isolated panda groups more open to 9. (dangerous)．The panda national park will cover all the habitats and make the protection of animals as comprehensive as possible.
But this increased protection doesn’t mean national parks will shut their doors to humans.Instead，the new system will offer people a chance to 10. (deep) feel nature.

1．答案　has been serving/has served
解析　考查动词的时态。前半句中有since，主句用现在完成时，此动作还可以表示持续性，故用现在完成进行时也可以，故答案有两种。
2．答案　declared
解析　考查非谓语动词。此处and连接并列的部分，owned是过去分词，故declare也用过去分词，作定语，修饰名词land。
3．答案　to protect
解析　考查动词不定式。此处为动词不定式作目的状语。
4．答案　The
解析　考查冠词。形容词最高级前面应用定冠词the。
5．答案　where
解析　考查引导词。此处为表语从句，从句缺少状语，根据句意应填where。
6．答案　as
解析　考查介词。as作为，当作。
7．答案　because/as
解析　考查连接词。此处表示原因，前后句之间为因果关系，故用because/as。
8．答案　are cut
解析　考查动词的被动语态。根据句意可知，此处指栖息地“被分割成”，为被动语态。
9．答案　danger
解析　考查名词。此处用名词作宾语。
10．答案　deeply
解析　考查副词。此处为副词修饰动词feel。