2024 年高三一轮名校培优筑基复习方案(北师大 2019)
（核心单词+词形转换+词汇精讲+熟词新意+写作迁移）
Unit 3 Conservation (选择性必修一) 解析版
一、重点单词分类——夯基础
(一)核心单词
[第一组]
1．switch vi.&vt. 转换，改变
2．hunt vi.&vt. 猎取，猎杀
3．species n. 物种，种
4．wipe vt. 擦；拭
5．mass adj. 大量的
6．decrease n. 减少；减少的量
vi.& vt. 减少
7．blame vt. 责怪，指责
8．affect vt. 影响
9．wrap vt. 包，裹
10．swallow vi.& vt. 吞下，咽下
[第二组]
11．stuck adj. 卡住的，无法移动的
12．anger n. 愤怒；怒气
13．decade n. 十年，十年期
14．essay n. 论说文；散文
15．claim vt. 声称；断言；主张
n. 声称； (根据权力而提出的)要求
16．chemical n. 化学品
adj. 化学的
17．drug n. 药物，药材；毒品
18．sum vt. 概括，总结n. 金额，款项；总数
19．memorial n. 纪念馆；纪念碑
adj. (对逝者)纪念的，追悼的
(二)拓展单词
[第一组]
1．conservation n．保护→conserve_v．保护
2．destroy vt.破坏；毁坏→destruction n．破坏；毁掉→destructive adj.毁坏性的；破坏性的
3．recycle vi.&vt. 再利用，回收利用→unrecyclable_ adj. 不可回收的
4．threat n．威胁； (灾难等坏事)发生的可能→threaten_ vt.威胁；危及
5．illegally adv.非法地，违法地→legally adv.合法地→legal adj.合法的→illegal adj.非法的
6．extinct adj.灭绝的，绝种的→extinction n．灭绝，绝种
7．incredibly adv.非常地，极端地→incredible_ adj.极好的；难以置信的
8．urgent adj.紧急的，急迫的→urge_ v．敦促→urgency n．急迫，紧急
9．unusual adj.异常的；不平常的→unusually adv.异常地；不平常地→usual adj.往常的
10．varied adj.各种各样的，形形色色的→vary_v．不同→various adj.多种多样的→variety
n．种类
11．endangered adj.濒危的→endanger vt. 危及，使遭到危险
12．restore vt. (使)恢复→restoration_ n．(旧建筑或旧家具等的)修复，整修
13．consumer n．消费者→consume vt.吃；喝；饮；消耗→consumption n．消费
14． waste ful adj. 浪费的；挥霍的→waste vt.&n. 浪费；滥用
[第二组]
15．transportation n. 交通运输系统，运输方式→transport n．交通运输系统 vt.运输；运送
16.dirt n．灰尘，尘土→dirty adj. 脏的
17．realistic adj. 现实的，实际的→realise_ vt.领悟；实现；实行→reality n．真实；现实；逼
真
18．innovative adj.新颖的，创新的，革新的→innovate v．创新→innovation n．创新，革新
19．aware adj.意识到的，明白的→awareness n．意识；认识
20．collection n．收集；收藏品；专辑→collect_ vt.收集，收藏
21．reusable adj. 可再使用的，可重复使用的→reuse vt. 重新使用；重复使用
22．anxious adj. 焦虑的，不安的→anxiety n．焦虑；担心；害怕→anxiously_adv.焦虑地；
不安地23．annoyed adj.烦恼的，生气的→annoy v．使烦恼；使生气→annoyance n．烦恼，生气
24．relate vi. 相联系，有关联→related adj.有关系的；有关联的→relation n．关系
25． regul ar adj.定期的，有规律的→regularly adv.经常；定期地
26．suit vt.适合n. 套装→suitable adj.合适的；适用的
27．involve vt. 包含，需要→involved adj.参与的；投入的→involvement n．参与
28．cruel adj.残忍的→cruelty n. 残忍，残酷
29．agricultural adj.农业的→agriculture n．农业；农艺
(三)阅读单词
[第一组]
1．plastic adj. 塑料制的
2．mining n. 采矿业
3．item n. 一项 ， 一条
4．informative adj. _有教育意义的；知识性强的
5．rhino n. 犀牛
6．horn n. ( 牛、羊等头上的 ) 角
7．solar adj. 太阳光 ( 能 ) 的
8．hatch vi.& vt. ( 使 ) 孵化
9．packet n. 小包 ， 小盒
10．packaging n. 包装盒 ( 瓶、袋 ) ， 包装材料
11．shell n. 壳；贝壳
12．refillable adj. 可再填充的
13．carton n. _硬纸盒；塑料盒
14．chopsticks n. 筷子
15．council n. 委员会；理事会
16．jam n. 拥挤 ， 堵塞；果酱
[第二组]
17．roadworks n. _道路施工
18．gas n. 气 ， 气体
19．cancer n. 癌症
20．organic adj. 不使用化肥的 ， 有机的 ， 绿色的
21．institute n. 机构；研究院
22．opponent n. 反对者；对手 ， 敌手23．instance n. 例子 ， 实例
24．committee n. 委员会
25．temple n. 庙宇 ， 寺院
26．Confucius 孔子
27．carve vt. 雕 ， 刻
28．valley n. 谷 ， 山谷
29．scenic adj. 景色优美的
30．historic adj. 古老的；历史上重要的
31．thunderstorm n. 雷暴
32．typhoon n. 台风
33．Atlantic adj. 大西洋的
二、必备短语分组——抓落实
(一)汉译英
1．have_a_role 起某种作用
2．do_one's_part 尽自己的职责
3．die_out_ 消失；绝迹，灭绝
4．wipe_out 彻底毁灭
5．be_to_blame_ 把……归咎于
6．be_at_risk 处境危险，受到威胁
7．set_out 开始做某事，着手进行
8．stressed_out_ 焦虑的
9．be_related_to 与……有关联
10．sum_up 概括，总结
(二)英译汉
11．up to 多达
12．take action 采取行动
13.take steps 采取措施
14．in short 总之
15．get stuck in 陷入
16．cut the risk of 降低 …… 的风险
三、经典句式默背——积佳句
(一)句型公式1．含蓄条件句
Without_forests，we would_have_no_air_to_breathe，and without clean water we would be
unable to survive.
没有森林，我们就不能呼吸空气；没有干净的水，我们将无法生存。
2．动词不定式作独立成分
To_be_frank,_I'm addicted to my car.
坦率地说，我对车上瘾了。
3．形容词短语作状语
How often do we arrive at work or school，stressed out, tired_and_angry?
又有多少次，当我们抵达工作地点或学校时感到心力交瘁，心烦气躁？
(二)单元美句
We need to take steps to save endangered species, including setting up special areas where
plants and animals can be protected. We need to change how we work and travel by using
cleaner, more natural sources of energy, such as wind and solar energy. We also need to
improve our farming methods to reduce water, air and land pollution. In short，if we want to
survive，we need to stop destroying the planet that we live on and start to protect it.
我们需要采取措施拯救濒危物种，包括建立特殊区域，保护动植物。我们需要改变我们的工作
和旅行方式，使用更清洁、更自然的能源，如风能和太阳能。我们还需要改进我们的耕作方法，
以减少水、空气和土地污染。简言之，如果我们想要生存，我们需要停止破坏我们赖以生存的
星球，并开始保护它。
四、单元知识横拓——积得多
1．特殊形容词变副词小结
①incredible→incredibly 非常地，极端地
②simple→simply 简单地
③comfortable→comfortably 舒适地
④gentle→gently 温柔地
⑤possible→possibly 可能地
⑥true→truly 真实地，真正地
2．“包含”大搜索
①involve vt. 包括；包含
②contain vt. 包含；容纳
③include vt. 包括；含有
④cover vt. 包括；涉及⑤comprise v. 包括；由……组成
3．to为介词的短语荟萃
①be related to 与……有关联
②be accustomed to 习惯于
③object to 反对
④be addicted to 对……上瘾
⑤get used to 习惯于
五、读后续写微技能——惊讶
John had always told him that outside the window there was an amazing park. Mike struggled to
walk to the window. Surprisingly, it faced a blank wall. Mike rubbed his eyes hard，and
stared. His mouth dropped/hung open in surprise. He froze there for a while, wideeyed, as if
rooted to the spot. He was speechless with shock when he thought of the beautiful scene John had
described to him every day. Confused and astonished, he gaped at the wall，“Why is it a
wall？” he murmured. Shaking his head in disbelief, he still couldn't believe his eyes.
一、单词拼写
根据汉语或首字母提示写出单词的正确形式
1．As far as I know, he started studying history but then switched(改变) over to architecture.
2．When lion cubs are young, the mother stays with them while the father hunts(猎取) for
food.
3．She did the cleaning and wiped(擦) away the dust from all the furniture the whole morning.
4．Tourism，which is a major source of income for the city，may be seriously affected(影
响).
5．I was wr apped (裹) heavily and well sheltered from the freezing and blowing weather.
6．It seemed that his mouth was full of blood and his eyes were red with anger(愤怒).
7．China has made remarkable progress in many aspects in the last several de cades (十年).
8．The minister of the education department claimed(声称) that violent films were polluting the
minds of our children.
9．The polluted river is the living proof of the environmental pollution caused by the
chemical factory.
10．The production of wheat decreased by 15% because of the dry weather.二、单句语法填空
用括号内所给词的适当形式填空
1．After the terrible earthquake, the people had to work hard and make a life despite great
destruction(destroy) of their homes.
2．The society was set up to preserve endangered species from extinction(extinct).
3．Traveling in Beijing during the Spring Festival can be an incredibly(incredible) relaxing and
rewarding experience.
4．There is an urgent(urge) need to finish this project by tomorrow.
5．There are varied/various(vary) reasons why many students have got into the habit of staying up
late.
6 ． We sincerely hope that effective measures can be taken to protect this
endangered(endanger) species from dying out.
7．The restoratio n (restore) took almost 4，000 manhours over four years.
8．There is never any doubt that it is unwise to depend completely on the ratings in
consumption(consume).
9 ． Most importantly, we'd better launch a publicity campaign to raise people's
awareness(aware) of protecting the environment.
10．At the front door stood her husband, Tom, who suffered great anxiety(anxious) when she
was missing.
三、选词填空
根据语境，用方内所给短语的适当形式填空
do one's part, wipe out，set out，take action，stress out，be related to
1．After a serious flu outbreak wipes out 99.4% of the world's population, a battle unfolds
between good and evil among those left.
2. It is high time that we took action to improve the lives of elderly people.
3．Whenever you set out on a long walk, you'd better always wear suitable boots.
4．The designer feels stressed o ut because he can't speak English well.
5．In my opinion，you should do your part in helping the homeless.
6．It is assumed that mental health is related to physical health.
四、经典句式仿写
1．没有你的帮助，我不会在英语学习上取得这么大的进步。(含蓄条件句)
Without your help ， I would not have made so much progress in English learning.
2．说实话，我在她讲话过程中睡着了。(动词不定式作独立成分)To tell the truth , I fell asleep in the middle of her talk.
3．他们一直跑到终点线，筋疲力尽。(形容词作状语)
They kept running until the finishing line, exhausted．
4．研究表明，竞走与跑步有许多健身益处，但最有可能减少受伤。(while连接并列句)
Race walking shares many fitness benefits with running, research shows, while most likely
contributing to fewer injuries ．
Part 1 重点词汇过关
1．threat n. 威胁； (灾难等坏事)发生的可能
be a threat to... 对……构成威胁
under threat 受到威胁
threaten vt. 威胁；危及
【佳句】It was a threat to world peace.
这是对世界和平的威胁。
练透——单句语法填空
①They are friends forever，so nothing can threaten(threat)their relationship which many people
consider harmonious.
②With the booming of online shopping, the supermarkets are under threat.
写美——应用文写作之野生动物保护
③只有学会与大自然和谐共处，我们才不会成为野生生物和地球的威胁。
Only when we learn to exist in harmony with nature can we stop being a threat to wildlife and
to our planet.
2．urgent adj.紧急的，急迫的
(1)urge n. 强烈的欲望；冲动
vt. 催促；力劝；大力推荐
urge sb to do sth 催促某人做某事
urge that...(should)do sth 极力主张……做某事
(2)have an urge to do sth
渴望做某事
(3)urgency n. 紧急；催【佳句】Additionally, it is urgent to raise public awareness of the importance and value of
protecting the historic site.
此外，迫切需要提高公众对保护历史遗址的重要性和价值的认识。(应用文之投稿信)
练透——单句语法填空
① Parents should actively urge their children to take/ (should)take (take)advantage of the
opportunity to participate in outdoor activities.
②There is no sense of urgency(urge)to do my school work immediately.
写美——读后续写之心理描写
③站在舞台上，我感觉如此紧张以至于我有股想逃的冲动。
Standing on the stage，I felt so nervous that I even had an urge to escape ．
3．decrease n. 减少；减少的量 vi.& vt.减少
(1)decrease by 减少了
decrease(from...)to (从……)减少到
(2)on the decrease 正在下降；在减少
on the increase 正在增长；在增加
【佳句】On behalf of School Students'Union, I call on all of my fellow students to do what
we can to help to decrease the chances of disease infection.
我代表学校学生会，呼吁所有同学尽我们所能，减少感染疾病的机会。(应用文之演讲稿)
练透——单句语法填空
①Compared with last year，the traffic accidents in the city have decreased by 30%.
②The number of boarders of the school has decreased to three hundred.
写美——同义替换
③Because of human activities, the number of some rare animals is decreasing.
→Because of human activities, the number of some rare animals i s o n th e decreas e．
4．blame vt.责怪，指责
(1)be to blame(for) 应(为……)承担责任；该(为……)受责备
blame sb for sth 因某事责备某人；把某事归咎于某人
(2)blame n. 过失；责备
put/lay the blame for sth on sb
将某事归咎于某人
【佳句】Blamed by his teacher，the boy was frustrated and couldn't concentrate on his study.
由于老师的责备，这个男孩很沮丧，不能集中精力学习。(应用文之学校生活)
【点津】 be to blame短语中blame不能用被动形式，该短语为主动形式表示被动含义。练透——单句语法填空
① It is easy to blame someone fo r mistake, but remember that basketball game is a team
effort.
②It was the professor rather than his assistant that was to blame (blame)for what had happened
in the lab.
写美——应用文写作之学校生活
③ Alice was in low spirits because she was blamed for the breakdown of the school computer
network.
→ Blamed for the breakdown of the school computer network ，Alice was in low spirits.(分词
作状语)
5．aware adj. 意识到的，明白的
(1)be/become aware of 对……知道、明白；意识到……
be aware that... 意识到/体会到……
(2)awareness n. 意识；认识
arouse one's awareness of...
唤起某人……的意识
【佳句】Alex looked down at his paper, aware that the room was still filled with unrest.
亚历克斯低头看了看报纸，意识到房间里仍然充满了不安。
练透——单句语法填空
①The purpose of the activity is to raise our awareness(aware) of protecting Chinese traditional
culture.
②People should be aware of the importance of protecting the ocean.
写美——词汇升级
③ Through the activity, we realize the necessity of carrying out a lowcarbon economy in our
country.
→Through the activity, we are aware of the necessity of carrying out a lowcarbon economy
in our country.
6.anxious adj. 焦虑的，不安的
(1)be anxious about/for 为……担心/担忧
be anxious to do sth 渴望做某事
(2)anxiety n. 担心；焦虑；渴望
with anxiety 焦虑地
(3)anxiously adv. 焦虑地【佳句】Anxious about the coming exam, I can hardly fall asleep at night.
由于担心即将到来的考试，我晚上几乎无法入睡。(读后续写之焦虑)
练透——单句语法填空
①Her family was poor，so the girl was anxious to finish (finish)school and get a job.
②I heard you suffered from anxiety(anxious)when you took an exam recently.
写美——一句多译
我担心即将到来的考试，以至于晚上几乎无法入睡。
③I'm so anxious about the coming exam that I can hardly fall asleep at night.(so...that...)
④ Anxious about the coming exam ，I can hardly fall asleep at night.(形容词短语作状语)
7．relate vi. 相联系，有关联
(1)be related to 与……有关系
relate...to/with... 把……与……联系起来
relate to... 和……有关联；和……合得来
(2)relation n. 联系，关系
in/with relation to 与……有关；涉及；与……相比
have no relation to 与……没关系
【佳句】Papercutting is closely related to the traditional culture of China, and has a history of
more than 1, 500 years.
剪纸有一千五百多年的历史，与中国的传统文化紧密联系在一起。(写作之传统文化)
练透——单句语法填空
①Have you read the report in/with relation to the explosion in the newspaper?
②We often relate yuanxiao with/to Lantern Festival.
写美——应用文写作之建议信
③你可以讲一些关于传统节日起源的故事和一些关于中国文化的传说。
You can tell stories related to the origins of traditional festivals and some legends concerning
Chinese culture.
8．suit vt.适合 n．套装
(1)suit...to... 使……适合……
suit one's needs 适合某人的需要
(2)suitable adj. 合适的；适用的
be suitable for 适合于……
be suitable to do sth 适合做某事
【佳句】Having been a responsible volunteer for many times in China，I believe that I'm thesuitable person that you want.
我在中国做过很多次负责任的志愿者，我相信我就是你们想要的合适人选。(应用文之申请信)
练透——单句语法填空
① If you look at all sides of the situation, you'll find probably a solution that suits(suit)
everyone.
②There is no doubt that a good teacher suits his lessons to the age of his pupils.
写美——应用文写作之申请信
因为我精通英语，我的确认为我适合这项志愿者工作。
③ I do believe I am suitable for this voluntary work，because I have a good knowledge of
English.(suitable)
④I do believe this voluntary work suits me ，because I have a good knowledge of English.
(suit)
9.involve vt.包含，需要
(1)involve(doing)sth 包含；需要(做)某事
involve oneself in sth 参加……
be/get involved in 参与；卷入；与……有关联；专注于
(2)involvement n. 参与；卷入；牵连
【佳句】It will involve 15，000 police，private security and military personnel.
该项目将包括1.5万名警察、私人安保人员和军事人员。
练透——单句语法填空
①Students should involve themselves in community activities where they can gain experience for
growth.
②Michelle found a job as a high school teacher which involved spending(spend)quite a lot of
time with children.
写美——应用文写作之申请信
③得知你们欢迎来自不同国家的学生，我想参加夏令营。
Learning that you welcome students from different countries，I'd like to be involved in the
summer camp ．
10．set out 开始做某事，着手进行
set off 出发；动身；启程；燃放(烟花)；引起；激起
set off for 动身去(某地)
set aside 保留；储蓄；忽视；不顾
set about(doing sth) 着手/开始做……set out(to do sth) 出发；开始做……
set down 放下；记下
set up 建立；树立；搭起
【佳句】When they set out they were well prepared.
他们出发时有很充分的准备。
练透——用set的相关短语填空
① You had better set aside some time every day for sports so that you can keep yourself
energetic.
② In order to provide a platform for students to practice speaking English, our school has
decided to set up an English club.
③He will set down all his important thoughts in his diary when they are fresh in his mind.
写美——一句多译
(2021·新高考Ⅰ卷读后续写)相反的是，他在杰夫手上涂了一些药，然后开始帮他们收拾烂摊子。
④Instead，he applied some medicine to Jeff's hand，and then set out to help them clean up
the mess.
⑤Instead，he applied some medicine to Jeff's hand，and then set about helping them clean
up the mess.
11．stressed out 焦虑的
(1)stress n. 压力
v. 强调；重读
under stress 在压力下
stress the importance of...
强调……的重要性
(2)stressful adj. 压力大的；令人紧张的
(3)stressed adj. 有压力的
【佳句】When you feel stressed out，you can also try to sit up straight or stand tall.
当你感到压力大的时候，你可以试着坐直或站立。
练透——单句语法填空
①Although the importance of education is stressed, teaching can be a tired and stressful job
because teachers have to work under great stress every day.(stress)
②Those who are stressed out are often nervous, angry or ill.
③People under a lot of stress may experience headaches and sleeping difficulties. That's why we
need to relax ourselves at times.写美——应用文写作之学校活动
④上周末，我们以“劳动最美”为主题发起了一场活动，并强调了亲自动手劳动的重要性。
Last weekend，we started a campaign with the theme “Working is the most beautiful” and
stressed the importance of working with our own hands ．
1．swallow
[对点微练] ——选出swallow的含义
A. vt.掩饰；抑制 B. vt.吞下，咽下
C. vt.吞没；淹没；侵吞 D. vt.相信；信以为真
①After the operation you may find it difficult to chew and swallow. B
②I watched her walk down the road until she was swallowed by the darkness. C
③I found her excuse very hard to swallow. D
④You're going to have to swallow your pride and ask for your job back. A
2．switch vi.&vt.转换，改变
[对点微练]——赏句猜义
①Press these two keys to switch between documents on screen. v . 改变 ， 转变
②(熟词生义)I can't work next weekend─will you switch with me？ v . 调班；临时掉换工作时间
③(熟词生义)You turn the television on by flipping the switch at the side. n . 开关
3．claim vt.声称；断言；主张 n．声称；(根据权力而提出的)要求
[对点微练]——赏句猜义
①(熟词生义)Heart disease is the biggest killer，claiming 180，000 lives per year. v t . 夺 走
②The scientist claimed to have discovered a new kind of medicine. v t . 宣称
③(熟词生义)You can claim your money back if the goods are damaged. v t . 索回
④(熟词生义)The insurance company is refusing to settle her claim. n . 索要 ， 索赔
⑤(熟词生义)If the owner doesn't claim the dog in 48 hours，you can apply for adoption. v t . 认领
4．carve vt.雕刻
[对点微练]——赏句猜义
①The wood had been carved into the shape of a flower. v t . 雕刻
②(熟词生义)She has carved a place for herself in the fashion world. v t . 艰苦创业；奋斗取得 ( 事
业、名声等 )
Part 2 写作句式迁移1．含蓄条件句
[课本原句]Without forests，we would have no air to breathe，and without clean water we would
be unable to survive.
没有森林，我们就不能呼吸空气；没有干净的水，我们将无法生存。
(1)“without/but for＋名词”可取代if引导的虚拟条件从句，主句用虚拟语气，表示所说内容
与事实相反。
(2)除了without，but for 之外，otherwise，but 等也常用来表示虚拟条件。
[写作迁移]——微写作
①我想借此机会表达你对我慷慨帮助的感激之情，没有你的帮助，我不会取得如此快的进步。
I'd like to take this opportunity to express my gratitude to you for your generous help，
without which I wouldn't have made such rapid progress ．
②如果没有多样的生物和植物，我们的地球将变得没那么有趣。
Without diverse creatures and plants，our globe would be less interesting ．
2．形容词(短语)作状语
[课本原句]How often do we arrive at work or school，stressed out, tired and angry?
又有多少次，当我们抵达工作地点或学校时感到心力交瘁，心烦气躁？
(1)形容词(短语)作状语可以表示方式、原因或伴随状况等，可置于句首、句末或句中，常用逗
号与句子其他成分隔开。
(2)形容词(短语)作状语时常用来说明句子主语的状态，即常和主语常构成系表关系。如果用来
修饰句子的谓语动词或整个句子，则应用副词作状语。
[写作迁移]——微写作
①这名妇女带着婴儿从火灾中逃生，极度恐惧和疲惫。
The woman managed to escape from the fire with her baby ， extremely terrified and
exhausted．
②我能说一口流利的英语，与外国游客交流没有困难。
Capable of speaking fluent English ，I have no difficulty communicating with foreign visitors.
单句语法填空
1．(2022·全国甲卷)One day，he talked with me and hoped to mend our relations(relate).
2．(2022·新高考Ⅱ卷)Highintensity exercise is more suitable(suit) for the young.
3．(2022·全国甲卷)The way you handle chopsticks is important to avoid annoying(annoy) your
companions.4．(2021·天津3月卷)Senator Bentsen has declined to get involved(involve) this time around.
5．The reason why the number of the wildlife is on the decrease is that their living places
have been completely destroyed(destroy).
6．I didn't want to threaten(threat) the integrity of his hard shell.
7．If I were you，I would switch of f the TV and concentrate on my study.
8．I wouldn't want to be associated with the illegal(legal) association any more.
9．I felt incredibly(incredible) ashamed of myself for getting so angry.
10．The crime rate in this area has decreased t o the lowest level nowadays.
完成句子
1．(2021·天津3月卷书面表达)我们都需要参与节约能源，无论是在工作中，在家里，还是在
学校。
We all need to get involved in saving energy whether it's at work, at home, or at school.
2．我感到非常紧张，手心都在冒汗。
I felt so anxious that my palms were sweating.
3．他看见了那双红袜子，他突然想到，一定是那双红袜子造成了这次事故。
He caught sight of the red socks, and it suddenly occurred to him that they must be to blame
for the accident .
4．是刘老师使我意识到学好英语的重要性。
It was Mr Liu who made me aware of the importance of learning English well ．
5．没有他的帮助，我的英语水平不会有很大的提高！
Without his aid , my skills in English wouldn't have been greatly improved!
话题微写作
根据汉语提示使用本单元的单词、短语和句式完成下面短文。
现在，由于人类活动，许多物种濒临灭绝，请根据以下内容写一份倡议书，呼吁人们保护野生
动物：
1．现状；
2．应采取的措施。
Now, 1. many species are endangered (许多物种濒临灭绝)just because humans do varied harm
to them. For instance, tigers 2. are being hunted cruelly (正在被残酷地猎杀)for their fur while
rhinos, for their horns. Besides，we have destroyed their habitats by cutting down trees，
throwing unrecyclable plastic rubbish and discharging polluted water that contains poisonous
chemicals into rivers.
It is human activities that 3. are to blame for the mass extinction (要为大灭绝负责).However，we 4. should be aware that (应该意识到)immediate measures should be taken.
Measures involve switching to solar energy，stopping using throwaway cartons or chopsticks,
and taking regular buses to and from work. To sum up，everybody 5. has a role to play in
protecting our planet (在保护我们的星球上发挥作用) and 6. if we all do our part (如果我们都尽
了自己的责任), the world will be much better.
