(共27张PPT)
Unit 5
The power of nature
Section Ⅰ Warming Up & Reading
一、课文大意填空
The writer told us the importance of the job as a
volcanologist.Twenty years ago he was (1)___________ as a
volcanologist, collecting information for a (2)__________ about
Mount Kilauea.He described the process of the (3)___________ to
us.He said the most important thing about the job of a
volcanologist was to protect people from (4)__________．
appointed
database
eruption
volcanoes
二、根据课文内容，选择最佳答案
1．The main purpose of the writer's job is ________.
A．to collect the information about Mount Kilauea
B ． to collect and evaluate the information about Mount
Kilauea
C．to help other scientists to predict the trend of the lava
D．to meet local people and tourists
C
2．When was the writer appointed as a volcanologist ______
A．Ten years ago.
B．For more than ten years.
C．Less than twenty years.
D．Twenty years ago.
3 ． Why does the lava that flows slowly down the mountian
cause far more damage than the boiling rock that erupts from the
volcano ____
A．Because it buries everything in its path.
B．Because most people live near the top of Mount Kilauea.
C．Because lava is in a higher temperature.
D．Because people can't leave the house.
D
A
4．Where did the writer have his first sight of the eruption ___
A．The bedroom.
B．The top of the Mount Kilauea.
C．The back garden.
D．The office.
5．Why were the writer and two other scientists driven up the
mountain the day after the eruption ___
A．To save the people on the mountain.
B．To protect the plants and animals on the mountain.
C．To watch the fantastic sight.
D．To collect some lava for later study.
C
D
The importance of a
volcanologist's job 1.Help other scientists to predict where lava from
the volcano will flow next and how(1)________．
2．Save many lives because people in the
(2)________ of the lava can be warned to leave
their homes.
The first sight of an eruption 1.Suddenly my bed began shaking and my
bedroom became as (3)________ as day.
2.There was an (4)________ from the side of the
mountain and red hot lava was (5)________
hundreds of meters into the (6)________．
His love for his job and volcanoes 1.Today, I am just as enthusiastic about my job
as the day I first started.
2．I am still (7)________at volcanoes' beauty as
well as their (8)________to cause great damage.
三、阅读课文，然后完成下列表格
fast
path
bright
eruption
fountaining
air
amazed
potential
It shows a volcano erupting.它展示了一座火山的爆发。
1．erupt vi.(指火山)爆发；突然发生
典例 It's many years since Mount Vesuvius last erupted.
维苏威火山上一次爆发至今已有很多年了。
Violence has erupted on the street.
大街上突然发生了暴乱。
拓展 erupt into (＝burst into) 爆发成；发出
运用 完成句子
①An active volcano ________________ ( 可能喷发) at any
time in this area.
②A regional conflict would ________________ ( 演 变 成 )
violent warfare.
could erupt
erupt into
Have you ever considered how weak humans are
compared with a volcano, hurricane or earthquake？你是否想
过与火山、飓风或地震相比，人类是何等脆弱？
2．compared with/to 和……比起来
典例
His home is a palace compared with/to our poor little
house.
他家和我们贫穷的小房子相比简直就是宫殿。
辨析 compared with/compare...to.../compare...with...
(1)compared with/to 意为“与……比起来”，在句中作状
语。如：
Compared with/to Class One's classroom, Class Two's is
spacious.
跟一班教室比起来，二班教室比较宽敞。
(2)compare...to...意为“把……比喻成……”，侧重指两者
间的相似点。如：
We compare teachers to gardeners and students to flowers. 我
们把老师比作园丁，把学生比作花朵。
(3)compare...with...意为“把……与……作比较”，侧重指
两者之间的区别。如：
Never compare your advantages with other's shortcomings. 切
勿拿自己的优点跟别人的缺点相比。
运用 用上面所提供的辨析短语的适当形式填空
①He ________________ the girl ________________ the
moon in the poem.
②________________ him, you are lucky.
③________________ this ________________ that one, and
you will see which is better.
compared
to
Compared to/with
Compare
with
I travel to unusual places and work alongside people
from all over the world.我跑的是不同寻常的地方，和我一起工
作的人来自世界各地。
3．alongside
解析 (1)prep.在……旁边；沿着……的边
The boat pulled up alongside the dock.
那条船在码头旁停靠。
(2)adv.在旁边；沿着边
The police car pulled up alongside.
那辆警车在旁边停下。
运用 完成句子
①The man stopped ________________ (在河边)．
②He is the master of the car stopped ______________ (在旁
边)．
alongside the river
alongside
I was appointed as a volcanologist working for the
Hawaiian Volcano Observatory (HVO) twenty years ago. 二十
年前我被任命为在夏威夷火山观测站工作的火山学家。
4．appoint vt.任命；委派
典例 He was appointed mayor of the city.
他被任命为市长。
拓展 appoint sb.as...任命某人为……
appoint sb.to do 指派某人做
运用 完成句子
They ________________ (任命他为) their new manager.
appointed him as
Having collected and evaluated the information, I help
other scientists to predict where lava from the volcano will flow
next and how fast.收集和评估这些信息之后，我就帮助其他科
学家一起预测熔岩接着将往何处流，流速是多少。
5．evaluate vt.评估；评价；估计
典例 Let's evaluate the evidence.
让我们评估一下此证据的价值。
The school has only been open for six months, so it's too early
to evaluate its success.
这所学校开办才不过六个月，所以要对它的成绩作出评价
为时尚早。
拓展 evaluate one's ability 评估某人的能力
evaluate the value/quality of sth.评估某物的价值/质量
运用 完成句子
①Before you appoint her as your assistant, you'd better
________________ (评估一下她的能力)．
②It's too late to ________________ ( 评 定 结 果 ) of the
experiment.
evaluate her ability
evaluate the result
6．现在分词的完成时作状语
解析 本句中的 having collected and evaluated the information
是现在分词的完成时作时间状语，表明所表示的动作发生在主
句动作之前，相当于 As I had collected and evaluated...。如：
Having finished the homework, he went to play basketball. 做
完功课后，他去打篮球。
运用 完成句子
________________ ( 等候了) for an hour, she met her son in
that prison finally.
Having waited
Unfortunately, we cannot move their homes out of the
way, and many houses have been covered with lava or burned
to the ground.遗憾的是，我们不可能把他们的家搬离岩浆流经
之路，因此许多房屋被熔岩淹没，或者焚烧殆尽。
7．out of the/one's way 不挡道；不碍事；躲开
典例 Please keep/stay out of the way.请让开。
If Uncle Tom had been drinking, I kept out of his way.如果汤
姆大叔一直在喝酒，我就躲开他。
拓展 in the way 挡道；碍事
on one's/the way 在路上
by the way 顺便问/提一下
by way of 经过，途经
in a way 在某种程度上
in no way 绝不
运用 完成句子
①The soldier nodded slightly, and moved ________________
(让开) to let them through.
②Don't stop here.It's ________________ (挡道)．
out of the way
in the way
8．burn to the ground 全部焚毁
典例 The Sunlight Hotel had been burnt to the ground.
阳光旅馆被烧毁了。
拓展 burn up 烧起来；烧得更旺；烧尽，烧毁
burn away 逐渐烧完；烧光
burn out 烧光；烧毁
burn down 烧光；火力减弱
burn oneself out 耗尽精力；精疲力竭
运用 完成句子
①The tall building ____________________ (全部烧毁) as a
result of the big fire.
②He
put
more
wood
on
the
fire
to
make
it
________________ (烧得更旺)．
was burnt to the ground
burn up
The lava that flows slowly like a wave down the
mountain causes far more damage because it buries everything
in its path under the molten rock.而顺着山坡向下流的火山熔
岩所造成的损失却大得多，这是因为火山熔岩流经的地方，一
切东西都被掩埋在熔岩下面了。
9．wave
解析 (1)n.波浪；波涛
The waves were beating on the shore.波涛拍岸。
(2)vi.波动；飘动；起伏；挥手
The flag waved in the breeze.
旗帜在微风中飘扬。
拓展 wave aside 对……置之不理；不理会
wave goodbye to sb.向某人挥手告别
wave off 挥手告别
wave down 挥手示意停下；挥手叫停
运用 完成句子
① Standing at the edge of the cliff she can see
________________ (波浪) crashing below.
②My mother was crying as I ________________ ( 向……挥
手告别) her.
the waves
waved goodbye to
It was not easy to walk in these suits, but we slowly
made our way to the edge of the crater and looked down into
the red, boiling centre.穿着这些衣服走起路来实在不容易，但我
们还是缓缓往火山口的边缘走去，并且向下看到了红红的沸腾
的中央。
10．make one's way 前往
解析
make one's way 常与介词或副词 to/towards, through,
forward, along 等连用。如：
He made his way towards the filling station.
他向加油站走去。
拓展 make way for 为……让路或让位
give way to 向……屈服/让步
feel one's way 摸索前进
lose one's way 迷路
fight one's way 杀出/开出一条路
运用 完成句子
I ________________ (沿着……走) the road.
made my way along
The other two climbed down into the crater to collect
some lava for later study, but this being my first experience, I
stayed at the top and watched them.另外两人攀下火山口去收
集供日后研究用的岩浆，我是第一次经历这样的事，所以留在
山顶上观察他们。
11．独立主格结构作状语
解析
this being my first experience 是独立主格结构，在句
中作状语，代词 this 与现在分词 being 之间存在逻辑上的主谓
关系，可改为状语从句“As this was my first experience...”。如：
There being no bus, we had to walk home.
因为没有公交车，所以我们不得不走路回家。
运用 完成句子
( 瞪 着 ) him, he didn't know
The girl ________________
what to say.
staring at(共14张PPT)
Section Ⅱ Learning about Language
The teacher was given the job because he was the best
candidate.那位教师得到了那份工作，因为他是最佳候选人。
1．candidate n．候选人；候补者
典例
They were in favor of the Democratic candidate for
President.他们支持民主党的总统候选人。
拓展 candidate 还可意为“求职应征者”，常与 for 连用。
如：
Milo was the strongest candidate for the job.
米洛在求职应征者中具备最好的条件。
运用 完成句子
In my opinion, he is a more suitable ____________ ( 候选人)．
candidate
She was shot.她中枪了。
2．shoot vt.射中；射伤；发射；拍摄；射门；投篮
典例 She shot the lion with a gun.
她用枪打死了一只狮子。
He shot the arrow from the bow.
他拉弓把箭射了出去。
The new movie was shot in Africa.
这部新的影片是在非洲拍摄的。
He shot two goals in the game.
在比赛中， 他进了两个球。
拓展 shoot at 向……射击
shoot a look/glance (at) 向……扫视一眼
shoot out 射出；伸出；长出
运用 用 shoot 及其构成短语的适当形式填空
①The hunter ________________ the tigher wounded.
②A man with a gun is ________________ the crowds.
③Jack ________________ at his mother anxiously.
shot
shooting at
shot a look/glance
复习v.-ing 形式
一般来说，v.-ing 形式包括动名词和现在分词两种。
一、动名词在句中的作用
1．作主语。表示泛指意义的行为，谓语动词要用第三人称
单数。如：
Seeing is believing.眼见为实。
His being late made the teacher angry.
他的迟到让老师很不高兴。
2．作宾语。
(1) 作动词的宾语。常见的动词有：advise, allow, permit,
avoid, consider, enjoy, finish, imagine, include, keep, mind, miss,
delay, practise, resist, suggest 等。如：
Would you mind switching the television to Channel 8
请把电视转到八频道好吗？
(2)作介词的宾语。如：
We are thinking of making a new plan for the next term. 我们
正考虑为下学期制定一个新的计划。
主动形式 被动形式 意义
一般式 doing being done 表示的动作与谓语动词所表示
的动作同时进行
完成式 having
done having been
done 表示的动作发生在谓语动词所
表示的动作之前
二、现在分词的基本形式
三、现在分词在句中的作用
1．作定语。既可表示动作正在进行，又可表示所修饰名词
的性质或用途。当单个分词做定语时，放在所修饰的名词之前；
当分词短语做定语时则放在名词之后，相当于一个定语从句。
如：
The sleeping bag is over there.睡袋在那儿。
The man speaking to the teacher is my father.(＝The man who
is speaking to the teacher is my father.)
正与老师谈话的那个人是我的父亲。
2．作表语。说明主语的性质或状况。如：
The film being shown in the cinema is exciting.
正在电影院上演的电影很棒。
3．作状语。现在分词作状语时，用来修饰谓语动词或整个
句子，表示动作发生的时间、原因、条件、结果、让步或伴随
等情况。现在分词短语作状语一般表示一个次要的动作，通常
都可以变为相应的从句或并列句。
(1)作时间状语，置于句首，且与后面用逗号隔开。如：
Working in the factory, he was an advanced worker.
在工厂工作时，他是一名先进工人。
(2)作原因状语，置于句首，后面用逗号隔开。如：
Being ill, she stayed at home.
由于生病了，她待在家里。
(3)作伴随状语，常置于句末。如：
He came into the classroom, taking a lot of books.
他拿了很多书走进教室。
(4)作条件状语，常置于句首。如：
Working hard, you'll succeed.
如果你勤奋一点，就会成功。
(5)作结果状语，置于句末。如：
Thy boy ran ever faster, reaching the school out of breath. 那
男孩跑得更快了，到达学校时累得上气不接下气。
(6)作让步状语，常置于句首。如：
Though raining heavily, it cleared up very soon.
虽然雨下得很大，但不久天就晴了。
4．作宾语补足语。现在分词作宾补常放在宾语后面，表示
一个正在进行的主动性动作，强调一个进程或一种状态。可接
现在分词作宾补的常见动词有：get, watch, have, keep, notice,
find, feel, hear, observe, leave, smell 等。如：
When we got to the hall, we found the lecture being given by
Professor Liu.
我们到达大厅时，发现刘教授正在作讲演。
用所给单词的适当形式填空
1．People can't help ________ (laugh) at the foolish empe-ror
in the procession.
2．________ (climb) mountains is really fun.
3．The girl ________ (sit) under the tree is my sister.
4．_____________ (finish) my work, I went home.
5 ． ________ (walk) along the street, I met an old friend of
mine.
6．His father died, ________ (leave) him a lot of money.
7．________ (be) ill, he didn't go to school yesterday.
8．Before __________ (use), the machine must be checked.
laughing
Climbing
sitting
Having finished
Walking
leaving
Being
being used
9．________ (drive) too fast, you will damage the car.
10 ．____________ (not know) how to get there, I had to ask
the way.
11 ． The squirrel was lucky that it just missed ___________
(catch)．
12．I know you like ________ (swim)．
13．___________________ (not receive) a reply, he decided to
15．If you wave your book in front of your face, you can feel
the air ________ (move) against your face.
Driving
Not knowing
being caught
swimming
Not having received
write again.
14．The news sounds __________ (encourage)．
encouraging
moving(共13张PPT)
Section Ⅲ
Using Language
I was trembling as much as the ground—and was
sweating too! 我和大地都在颤抖——也在流汗！
1．tremble vi.
解析 (1)摇晃；摇动；颤抖
The leaves tremble in the breeze.
树叶在微风中摇动。
She trembled for her daughter's safety.
她为女儿的安全焦虑不安。
拓展 tremble with 因……而发抖
tremble for 为……而担心
运用 完成句子
①The old man ________________ ( 害 怕 得 发 抖 ) hearing
someone knocking vehemently (强烈地) on the door.
②I kept ________________ ( 为……而担心) my brother all
night long.
trembled with
trembling for
(2)焦急，担忧(常接介词 at/for 或动词不定式)
I was so anxious and couldn't move at first.起初我太着
急了，无法移动。
2．anxious adj.忧虑的；不安的
典例
I felt very anxious when I was told that I might fail the
last exam.
得知自己可能没通过上次的考试时，我感到非常焦虑。
拓展 be anxious about/for 担心/忧虑……
be anxious to do sth.急于/渴望做某事
be anxious for sb.to do sth.急于让某人做某事
be anxious that sb.(should) do sth.急切希望某人做某事
运用 完成句子
①She ________________ (面带忧虑)．
②He ________________ ( 渴 望 ) find a job as soon as
possible.
looks anxious
was anxious to
I felt very nervous and had to force myself not to panic.
我非常紧张，不得不强迫自己不要惊慌。
3．panic
解析 (1)vi.& vt. (panicked, panicked)惊慌
The idea might panic the investors.
这个想法可能会使投资者惊慌。
They panicked at once when they saw the gun.
他们看到枪立即就慌了。
(2)n.惊慌；恐慌
There was a panic when the building caught fire.
大楼起火时，人们一片惊慌。
The thought of flying fills me with panic.
我一想到飞行就惊慌。
(3)adj.恐慌的
Everyone was panic when the earthquake happened.
地震发生的时候每个人都很恐慌。
拓展 get into/be thrown into a panic 陷入惊慌(强调动作)
be in a panic 处于惊慌中(强调状态)
in a state of panic 惊恐万状
panic over sth.对某事感到惊慌
panic sb.into doing sth.使某人因惊慌而仓促做某事
运用 用 panic 及其构成短语的适当形式填空
①She ________________ when she couldn't find the tickets.
②Don't ________________， boys; there's no danger.
③He took out a gun, and the gunfire ____________ the horse.
④Shoppers _______________ buying things they didn't need.
got into a panic
panic
panicked
were panicked into
Glance through these questions.浏览一遍这些问题。
4．glance through/at 匆匆看一遍
典例 He glanced through/at the map again.
他又匆匆看了一遍地图。
拓展 glance off 擦过；掠过
at first glance 乍一看；乍看之下
take a glance at 粗略地看一遍
运用 用 glance 及其构成短语的适当形式填空
①He sat down and ________________ the newspaper.
②The bullet just ________________ the top of the car.
③________________ the plan seemed unworkable.
④Can we just ________________ some of your pro-ducts
glanced through/at
glanced off
At first glance
take a glance at
The height of the land varies from 700 meters above sea
level to over 2,000 meters and is home to a great diversity of
rare plants and animals.这里地面的高度由海拔 700 米到 2000
米不等，是多种多样稀有动植物的生长地。
5．vary from...to...
解析
vary from...to... 意为“由……到……不等”，其中
vary 作动词，意为“变化；改变；相异，存在不同之处”。如：
The people who attend the meeting vary from only ten to over
eighty.
出席会议的人从仅仅 10 岁到 80 多岁不等。
拓展 vary with 随……而变化
vary in 在……方面不同
vary between...and...在……与……之间不同
运用 完成句子
①Study methods may ______________________ (因人而异)．
②These shoes _____________ ( 在…… 方面不同 ) both
size and color.
vary from person to person
vary in
...don't forget to drop a coin into the clear blue water to
guarantee your love will be as deep and lasting as the lake
itself.……不要忘了向清澈湛蓝的湖水中投入一枚硬币来确保
你们的爱情像湖水一样深厚而长久。
6．guarantee vt.保证；担保
典例 Perfect satisfaction is guaranteed to our customers.
一定要保证我们的顾客完全满意。
They have guaranteed that any faulty parts will be replaced
free.
他们保证，任何有毛病的零件都可以免费更换。
拓展 guarantee to do sth.保证要做某事
guarantee sb.sth.＝guarantee sth.to sb.向某人担保某事
guarantee sb./sth.against/from...保证某人/物免受损失
(或伤害等)
be guaranteed to do sth.必定会做某事
运用 完成句子
①Though the salesman ______________________ (向我保
证质量)of the air conditioner last month, it's broken now.
② This button can _______________________ ( 保证使用者
避免) electricity, so the product is very popular with many customers.
③ Firmly, he ________________ ( 保 证 ) he will finish the
work on time.
guaranteed me the quality
guarantee users against/from
guarantees that(共11张PPT)
Section Ⅳ
Writing
如何介绍旅游景观
如果我们想把自己的家乡或自己知道的旅游景观或景点介
绍给游客或爱好看游记的读者，那么在写作过程中，我们应该
做到以下几点：
1．层次清晰，结构合理。
一般来说，文章的第一段是一个总体介绍，如名字(及由
来)、地理位置、是否有来此一游的价值等。然后再用两个或几
个分段介绍其自然景观或人文景观。
2．融事实与描绘于一体。
我们在介绍一个景点或景观时，既要做到客观公正，不能
出现有悖于事实而任意发挥的情况，又要用生动、有积极意义
的词汇来形象地描绘该景观。这样才能对游客或读者起到说服
作用，因为只有游客或读者更清楚地了解了景观的情况，才能
引起人们对旅游目的地的向往，也使旅游变得更加现实。
3．加强对旅游景观的地理知识的介绍。
人们外出旅游是为了欣赏旅游景观，而观赏之前让游客尽
可能多地了解旅游景观的情况，就可能产生强烈的观赏欲望。
如：对长江源头、长度、地位、流经省市、沿岸经济状况、沿
岸风土人情等的了解，将有助于旅客在更高层次上作长江之旅；
对新疆气温日差较大这一现象的了解，将使人们在品尝甘甜的
瓜果时疑惑顿消，等等。
4．适当地介绍背景内容。
大部分的景点或景观背后都有一定的神话故事或传说。我
们可以用“It is said/believed that...”引出一个令人十分感兴趣的
故事，会让游客或读者更多地认识景观，更加深刻地理解其存
在的意义。
5．要有得体的结尾。
结尾时要尽量与所介绍的对象联系起来，可以直接或含蓄
地邀请大家到此一游，从而增强文章的说服力。
6．修改完善。
文章写好后可以通读几遍，以减少时态、语态、拼写、标
点等错误。
附：素材积累
1．常用的空间连接词和过渡词
above, below, in front of, in the centre of, on the left, across,
in the distance, on the right, beyond, nearby, opposite to, over,
close to, under, around,
further, next to, on top of, up, down,
near to, along...
2．常用的句子模板
(1)．..is located in...
(2)．..is well-known/famous for its.../as...
(3)The..., known as..., attracts millions of visitors from all
over the world.
(4)You can enjoy the sights, taste the local food, explore the
lively nightlife and learn about its history and culture.
(5)If you are interested in..., you can...
(6)．..is a must-see for tourists, as...
(7)After exploring..., you can relax and enjoy a good meal
in...
(8)．..may explain why people spend so much time on trips
to...
(9)You are sure to have a wonderful time in...
(10)Few visitors leave...feeling disappointed.
3．常用的高级句型
(1)强调句：It is...who/that...
(2)it 作形式主语：It is well-known to us all that...; It is ＋
adj./n.＋for/of sb.to do sth.
(3)with 复合结构：With＋n./prep./v.-ing./v.-ed...
(4)感叹句：How＋adj./adv.＋主语＋be！； What＋ adj.
＋n.＋主语＋be!
请根据下面的内容提示，用英语写一篇描写长城的短文。
[写作内容]
1．长城像一条巨龙蜿蜒曲折由西到东，横亘西北、华北地
区多个省市，穿过沙漠、高山、山谷，最后到达大海；
2．长城是地球上最长的城墙，也是世界一大奇迹；
3．长城有 2,000 多年的历史，始建于春秋时期，秦朝时所
有的城墙被联结在一起；
4．建造长城的所有工作都是手工完成的，成千上万的人在
修建长城时死去；
5．到目前为止，长城经过多次整修，现在面貌焕然一新，
随时等待迎接来自国内外的游客。
[写作要求]
1．文中需包括所有的内容要点，但不要逐字翻译，可适当
加入细节，使短文通顺、连贯；
2．词数 120 左右；
3．参考词汇：春秋时期 the Spring and Autumn Period; 秦
朝 Qin Dynasty
参考范文：
The Great Wall runs across North China like a huge dragon.It winds its way from west to east, across deserts, over mountains, through valleys till at last it reaches the sea.It's the longest wall on the earth, also one of the wonders in the world.
The Great Wall has a history of more than 2,000 years.The first part was built during the Spring and Autumn Period.All the walls were joined up in Qin Dynasty.All the work was done by hand.Thousands of people died while building the wall.Thus the Great Wall came into existence.
So far, the Great Wall has been rebuilt and repaired many times.Now it has taken on a new look.It's visited by large numbers of people from all parts of the country and the world.
