课件37张PPT。Unit 1Great
scientistscharacteristic
radium
painter
scientific
conclude
conclusion
analysen. 特征; 特性
n. 镭
n. 画家; 油漆匠
adj. 科学的
vt. & vi. 结束； 推断出
n. 结论；结束
vt. 分析Words previewput forward
draw a conclusion提出
得出结论 There are some great scientific achievements that have changed the world. Can you name some of them?
Match the achievements with the scientists below. Galileo Galilei
Benjamin Franklin
Newton
Alexander Bell
Albert Einsteinthe theory of falling objectslightningthe law of gravitytelephone Scientists Achievementsthe theory of relativityWhat do you know about
great scientists?
Try this quiz and find out
who knows the most.1. Which scientist discovered that objects
in water are lifted up by a force that
helps them float?B. ArchimedesC. Thomas
EdisonA. Charles
DarwinArchimedes (287-212 BC), an ancient Greek mathematician & physicist2. Who wrote a book explaining how
animals and plants developed as the
environment changed? Marie
CurieC. Charles
DarwinB. Gregor
MendelCharles Darwin (1808-1882), British author
of The Origin of Species 3. Who invented the first steam engine? Thomas
NewcomenC. Thomas
EdisonB. ArchimedesThomas Newcomen (1663-1729), British,
improved the first steam pump and turned
it into a steam engine for taking water out
of mines in 17124. Who used peas to show how physical
characteristics are passed from parents
to their children? Thomas
EdisonC. ArchimedesB. Gregor
MendelGregor Mendel (1822-1884), Czech, developed ideas on heredity (遗传学) and inherited (继承, 承传) characteristics5. Who discovered radium?C. Marie CurieB. NewtonA. Zhang HengMarie Curie (1867-1934), Polish and French, won two Nobel Prizes6. Who invented the way of giving electricity
to everybody in large cities? Stephen
Hawking C. Thomas
EdisonB. ArchimedesThomas Edison (1847-1931),
American inventorThomas
EdisonInventions of Thomas Edison Phonograph 留声机Light bulbMotion Pictures7. Who was the painter that studied dead
bodies to improve his painting of people? Gregor
MendelC. Marie
CurieB. Leonardo da
Vinci Leonardo da Vinci (1452-1519), Italian artistLeonardo da Vinci’s paintings 8. Who invented a lamp to keep miners safe
underground? Sir Humphry
Davy C. FaradayB. Thomas
NewcomenSir Humphry Davy (1778-1829), British,
discovered the medicinal value of nitrous oxide (一氧化二氮) as anaesthetic (麻醉剂)9. Who invented the earliest instrument to
tell people where earthquakes happened? Charles
DarwinC. Watt B. Zhang
HengZhang Heng (78-139), Chinese, invented the first seismographseismograph地动仪10. Who put forward a theory about black
holes? Stephen
HawkingC. CopernicusB. ArchimedesStephen Hawking (1942--), British scientist,
worked in astronomy and studied black holes in spaceThe quotes below are from some famous scientists.
Do you know their meanings?Imagination is more important than
knowledge.“想象力比知识更重要。”Albert EinsteinGenius is one percent inspiration and ninety-nine percent perspiration.“天才就是百分之九十九的汗水
加上百分之一的灵感。”Thomas Alva Edison Marie CurieNothing in life is to be feared, it is only to be understood.“生活中没有什么可怕的东西, 只需
要理解的东西。”It takes a very unusual mind to undertake analysis of the obvious.Alfred Whitehead “分析明显存在的事物需要非凡的
头脑。”What makes a
scientist successful?strong will， imagination， creativity， patience， persistence， carefulness， curiosity… Do you know how to prove a new idea in scientific research?
Discuss in small groups the stages in setting out a new scientific idea.
What order would you put them in？Draw a conclusion Think of a method Collect results Make a question
Find a problem Analyse the results
Find supporting evidenceWhat disease spread around the world
in 2003?SARSWhich doctor impressed you most during the SARS?Zhong Nanshan (钟南山) Infectious diseases can be spread to
other people. They have an unknown cause
and need public health care to solve them.
People may be exposed to infectious
diseases, so may animals. Bird flu,
AIDS and SARS are infectious diseases.
Infectious diseases are difficult to cure. What do you know about infectious diseases?What do you know about cholera?What other diseases do you know are similar to SARS today?choleraWhat is Cholera? Cholera is the illness caused by a bacterium called Vibrio cholerae. It infects people’s intestines(肠), causing diarrhea(腹泻), vomiting and leg cramps. The most common cause of cholera is by someone eating food or drinking water that has been infected with the bacteria. After a disaster, this is a very real danger, since regular, clean water
and food supplies are often
unavailable. The disease can be
spread even further by infected people using already dirtied water sources to clean themselves or dispose of waste.
Great BritainGermanyDeath of first cholera case in London during the 1848-49 epidemic LondonPrevious cholera epidemic in Great Britain in 1831-32The spread of choleraHomework Write a passage about one of
your favourite scientist in
about 150 words.
2. Preview the reading:
JOHN SNOW DEFEATS
“KING CHOLERA”Thank you.课件46张PPT。Great scientists Unit 1expert
attend
physician
expose
cure
challenge adj. 熟练的; 经验丰富的
n. 专家; 行家
vt. 照顾; 出席; 参加
n. 医生；内科医师
vt. 暴露; 揭露; 使曝光
n. 治愈；痊愈
vt. 治愈；治疗
n. 挑战
vt. 向……挑战victim
absorb
suspect
enquiry neighbourhood severe
pump n. 受害者
vt. 吸收; 吸引; 使专心
vt. 怀疑
n. 被怀疑者; 嫌疑犯
n. 询问
n. 附近; 邻近
adj. 严重的; 严厉的
n. 泵; 抽水机
vt. (用泵) 抽 (水)foresee
blame
pollute
handle
link
announce
instructvt. 预见; 预知
vt. 责备; 谴责
n. 过失; 责备
vt. 污染; 弄脏
n. 柄; 把手
vt. 处理; 操纵
vt. & n. 连接；联系
vt. 宣布; 通告
vt.命令; 指示; 教导expose … to
link … to …使显露; 暴露
将……和……联系或连接起来Expressions previewJOHN SNOW DEFEATS
“KING CHOLERA”ReadingSkimming
to get
general ideasReading Tips在阅读每个段落时，要注意
综合运用略读(skimming)
与扫读(scanning)这两种方法。 略读(skimming)只看文章标题、下标题以及每个部分或者段落第一行, 关注文章中反复出现的关键词。
略读时, 要用充足的时间读懂段落的第一句和第二句, 因为第一句往往是该段的主题句(topic sentence), 而第二句往往是对前句的延伸(extension)或进一步的解释(explanation)。通过略读把握文章大意 运用扫读(scanning)迅速浏览从第三句开始的后面部分, 搜寻作者对开头两句的支持句(supporting sentences), 并同时注意文章中间是否有转折(transition), 因为这些词常常会把文章的思路逆转或加入其它重要的信息。当读到段落的最后一句时,我们又要使用略读, 这时必须再次放慢速度(slow down your pace)直到完全消化作者对段落的小结(conclusion), 因为该小结有可能与主题句截然相反或引导读者进入下一个段落。通过扫读寻找特定信息或特定词组After reading the passage,
match the following stages
with the paragraphs.SkimmingReading Comprehension IStagesDraw a conclusion
Think of a method
Collect results
Make a question
Find a problem
Analyze the results
Find supporting evidenceFind a problemMake a questionThink of a methodCollect resultsAnalyse the resultsDraw a conclusionFind supporting evidenceParagraphs & Stages First we should find the problem.
Then, think of a method. We should
collect as much information as possible.
Analyzing results is the most
important stage.
Before we make a conclusion, it
is necessary for us to find supporting
evidence.SummarySkimmingReading Comprehension IIWhat’s the main idea of the passage?
A. John Snow was a well-known doctor
in London.
B. The cause of Cholera was polluted water.
C. The source of all drinking water should
be examined.
D. How John Snow collected, analysed
data and found the cause of the disease
and defeated the disease.Careful reading
to solve
difficult points1. attend v.
(1) to take care; give attention
注意；留意 如:We’ll attend to the solution of that
problem later.(2) to take good care of (a sick person, for
example) 照看；照料 如:The doctor attended the patients.
医生照看病人。 attend school 上学
attend a lecture 听讲座
attend church 去教堂
attend (at) a wedding 出席婚礼(3) to be present at 出席; 到场 如:2. exposed adj. 暴露的； 无掩蔽的expose to 使易受; 使受
expose sth to the light of day
把某事暴露于光天化日之下
expose a fraud 揭穿骗局exposedness n. 暴露；显露3. absorb v. (1) 吸收(液体); 承受; 承担我们不能承担这些费用。We’ll not absorb these charges.(2) 使专心；使全神贯注作家全神贯注地进行写作，忘了弹去雪茄烟的烟灰。The writer was so absorbed in his writing that he forgot to flick the ashes from his cigar.We were ready to take the blame for what had happened.? 4. blamev. 责备; 谴责The driver was not to blame for the accident.?
这次事故怪不着司机。n. 过失; 责备我们准备对所发生的事承担责任。Fingerprints linked the suspect to the crime.
指纹证实了嫌疑犯的犯罪事实。5. linked to 把……与……连接; 联系 be linked to 连接
The two towns are linked by a railway.Find out the main idea of each paragraph:John Snow wanted to use his
knowledge to solve cholera.He got interested in two theories
explaining.He needed to prove the second
theory was correct.He found out that dirty water was
the cause of cholera.Para. 1Para. 2Para. 3Para. 4Para. 5Para. 6Polluted water carried the disease.Finally “King Cholera” was defeated.Scanning
to get
detail informationRead the passage and number these
events in the order that they happened.___ John Snow began to test two theories.
___ An outbreak of cholera hit London in
1854.
___ John Snow marked the deaths on a
map.ScanningReading Comprehension III___ He announced that the water carried
the disease.
___ John Snow investigated two streets
where the outbreak was very severe.
___ King Cholera was defeated.
___ He found that most of the deaths were
near a water pump.
___ He had the handle removed from the
water pump.Answer: 2 1 4 7 3 8 5 6 ScanningReading Comprehension IVWhy couldn’t the cholera be controlled
at first?
A. Its speed of spreading was so fast.
B. Its cause wasn’t understood
C. Its cure wasn’t understood.
D. Both B. & C.
2. How many people died in 10 days?
A. Less than 500.
B. More than 500.
C. More than 450.
D. Less than 450.Answer these questions.1 John Snow believed Idea 2 was right. How did he finally prove it?2 Do you think John Snow would have
solved this problem without the map?
Give a reason.3 Cholera was a 19th century disease. What disease do you think is similar to cholera today? ScanningReading Comprehension V1 John Snow believed Idea 2 was right. How did he finally prove it?John Snow finally proved his idea
because he found an outbreak that was
clearly related to cholera, collected
information and was able to tie cases
outside the area to the polluted water.2 Do you think John Snow would have
solved this problem without the map?
Give a reason.No. The map helped John Snow organize
his ideas. He was able to identify those
households that had many deaths and
check their water-drinking habits. He
identified those houses that had had no
deaths and surveyed their drinking
habits. The evidence clearly pointed to
the polluted water being the cause.3 Cholera was a 19th century disease. What disease do you think is similar to cholera today? Three diseases, which are similar today,
are SARS, AIDS and bird flu, because
they are serious, have an unknown cause
and need public health care to solve
them.What should you do if you're travelling to a country that has a cholera outbreak? Drink only water that you have boiled.
Other safe drinks include tea or coffee
made with boiled water, bottled
beverages with no ice.Discussion Eat only food that's been thoroughly cooked and is still hot, or fruit that you've peeled yourself.
Avoid undercooked or raw fish and shellfish.
Avoid raw salads and vegetables.
Avoid food and drinks from street vendors.
QuizJohn Snow was a well-known ______ in London in the ____ century. He wanted
to find the ______ of cholera in order to ______ it. In 1854 when a cholera _______ out, he began to gather information. He _______ on a map where all the dead people had lived and he found that many people who had _______ the dirty water Retell the text by filling the
following blanks.Quiz Ifrom the ______ died. So he decided that the polluted water carried cholera. He suggested that the _______ of all water supply be _________ and new methods of ________ with polluted water be found. Finally, “King Cholera” was defeated.John Snow was a well-known ______ in London in the ____ century. He wanted
to find the ______ of cholera in order to ______ it. In 1854 when a cholera _______ out, he began to gather information. He _______ on a map where all the dead people had lived and he found that many people who had _______ the dirty waterdoctor19thcausedefeatbrokemarkedAnswerdrunkfrom the ______ died. So he decided that the polluted water carried cholera. He suggested that the _______ of all water supply be _________ and new methods of _______ with polluted water be found. Finally, “King Cholera” was defeated.pumpsourceexamineddealingTranslationQuiz II So many thousands of ______________
(惊恐的老百姓) died every time there
was an outbreak.
2. ________________________________ (他对两种推测都很感兴趣) that possibly
explained how cholera killed people.
3. The water companies were instructed
not to expose people to _____________
(被污染的水) any more.terrified peopleHe became interested in two theoriespolluted waterThe Town Hall ______ in the 1800’s
was the most distinguished building
at that time. (2007 上海卷)
A. to be completed
B. having been completed
C. completed
D. being completedQuiz III高考链接2. At the beginning of class, the noise
of desks ____ could be heard outside
the classroom. (2007 全国II卷) A. opened and closed
B. to be opened and closed
C. being opened and closed
D. to open and close3. I feel greatly honored ____ into
their society. (2008 北京卷)
A. to welcome
B. welcoming
C. to be welcomed
D. welcomed 4. Throughout history, the language
_____ by a powerful group
spreads across a civilization.
(2008 上海春卷)
A. speaking
B. spoken
C. to speak
D. to be spoken5. Please remain ______; the winner
of the prize will be announced soon.
(2008 辽宁卷)
A. seating
B. seated
C. to seat
D. to be seatedHomework Read the text again and
underline some important
phrases and difficult sentences.
2. Find more information about
John Snow and cholera. Thank you.课件48张PPT。The Past Participle (1)
as the Attribute and Predicative Unit 1 Grammar在必修4中, 我们已经学习了非谓语动词的-ing形式，在本册书中我们将学习非谓语动词的另一种形式—过去分词我们将在本册书的前三个单
元讲解过去分词。
本单元我们先学习过去分词作定语和表语。 a lighted candle一支点燃的蜡烛a used stamp一枚用过的邮票Translationa broken coin一枚破损的硬币一名退休教师a retired teacheran injured finger一个受伤的手指一个醉鬼a drunken man基本形式和意义过去分词是动词的一种非限定形式。过去分词兼有动词、副词和形容词的特征，可以带补语或受状语修饰。过去分词和补语或状语一起构成过去分词短语。过去分词的基本形式是“动词+-ed”，但也有不规则的形式。The Past Participle-- Look at the excited boy! Why is he so
happy?
-- He has got the first prize in the contest.
-- No wonder he is excited!Look at the dialogue and find the use of the past participle.Past Participle as the AttributeExample: So many thousands of
terrified people died. Now find two more examples in the
reading passage.1. But he became inspired when he thought about helping ordinary people exposed to cholera.
2. With this evidence John Snow was able to announce with certainty that polluted water carried the disease.1. 分词可以用作前置定语，此时分词和名词之间有两种语意关系：一种是分词表示主动（但时间上已经过去）；一种是分词表被动。
过去分词作定语Eg a lost animal 一只迷路的动物 A 单个的过去分词作定语时一般兼有被
动和完成的意义，常作前置定语。 注意：过去分词作定语时，有时只有被
动意义。
e.g.：spoken English 英语口语
written exercises 书面练习a fallen leaves 一片落叶
the risen sun 升起来的太阳
the advanced countries 发达国家
a retired teacher 一名退休教师
by-gone days 过去的岁月少数表示位移或状态改变的不及物动词
的过去分词只有完成的意义。e.g. How I regretted the hours wasted
in the woods!
我多懊悔在树林浪费的时光啊!
I like wearing clothes made of this
kind of cloth．
我喜欢穿这种布料做的衣服。B 过去分词作后置定语，表示被动和
／或完成意义。e.g. The books written by Lu Xun are
popular．
鲁迅写的书很受欢迎。
We’ll go to visit the bridge built
hundreds of years ago．
我们要去看那座建于几百年前的桥。1. He told us of the great wrong done to him.
= He told us of the great wrong ___________________ to him.
which had been done注：本句中的过去分词作定语，
既表被动又表完成。Change the following past participles into clauses.2. The United States is a developed country.
= The United States is a country
_____________________.which has developed注:本句中的过去分词作定语，只表示
完成。3. Have you noticed the bridge being built
there?
= Have you noticed the bridge
___________________ there?which is being built注:本句中的过去分词作定语，表示被
动的动作正在进行。过去分词短语有时亦可用作非限制性定语，前后常有逗号。
Some of them, born and brought up in rural villages, had never seen a train.
他们当中有一些人, 生长在农村，从未见过火车。用来修饰人的过去分词有时可以转移到修饰非人的事物，变成所谓的转移形容语。这种过去分词在形式上不直接修饰人，但它所修饰的事物仍与人直接有关。
The general stared at him in startled admiration.
将军以惊讶而赞赏的眼光注视着他。Attentioneg. We asked two of China’s many talented journalists to tell us more about news.
I want to write about people addicted to drugs.过去分词短语用作定语时，一般皆置于其所修饰的名词之后，其意义相当于一个定语从句，但较从句简洁，多用于笔语中。Trucks and buses were driven on gas carried in large bags on the roof.卡车与公共汽车皆烧煤气，煤气是装在车顶上的袋中。我们已经学习了动词-ing形式作定语, 这里就有一个问题了,
动词-ed形式作定语和动词-ing
形式作定语有什么区别呢？
接下来我们就谈谈它们的区别。1）语态不同
-ing表主动、进行；-ed表被动、完成-ed 作定语与-ing 作定语的区别：the changing world
the changed world（正在变化的）（变化了的）（正在沸腾的)（已经沸腾过的）(正在凋谢的)（已经凋谢的）(发展中的)（发达的） 2）时间关系不同
-ing 表“正在 进行”或“与谓语动词同时进
行”或“经常性”。
-ed 表动作先于谓语动词表示的动作。Do you know the boy lying under the big
tree? “Can’t you read?”Mary said, angrily
pointing to the notice.
The woman selling vegetables has gone. 3）及物动词的过去分词与现在分词的被动式都可表示被动, 但-ed表示一个完成了的动作, 而being done多表示一个正在进行的动作。 The problem discussed yesterday has something to do with us.
The problem being discussed now has something to do with us.
The building being built is our library.The Olympic Games, ___ in 776 B. C., didn’t include women until 1912.
A. first playing
B. to be first played
C. first played
D. to be playing考点点拨简析: 首先, 根据语法分析可知, 待选部分是一个作定语、修饰 The Olympic Games的后置分词短语; 再根据 The Olympic Games 对于动词 play 来说只能是被动承受, 且已完成 (in 776 B. C.)。因此, 该题应选C。2. What’s the language ___ in Germany? A. speaking B. spoken C. be spoken D. to speak
简析: 该题应选B。测试过去分词作后
置定语表达被动, 等于定语从句 which is
spoken。3. Most of the artists ____ to the party were from South Africa. A. invited B. to invite C. being invited D. had been invited简析: 该题应选A。测试过去分词作后置
定语表达被动, 等于定语从句who were
invited。4. The computer centre, ___ last year, is very popular among the students in this school. A. open B. opening C. having opened D. opened
简析: 该题应选D。测试过去分词短语作
定语放在所修饰的名词后, 可以用非限制
性定语从句“which was opened last
year”代替。5. The first textbooks ____ for teaching English as a foreign language came out in the 16th century. A. having written B. to be written C. being written D. written 简析: 该题应选D。测试过去分词作后
置定语表达被动, 等于定语从句that
were written。 另外, 分词作状语时, 如果其逻辑主语与整个句子的主语不一致时,需要独立主格结构或 with 复合结构来替代。(此时, 也可把该分词看成介词的宾语补足语。)例: The murderer was brought in, with his hands ___ behind his back. A. being tied B. having tied C. to be tied D. tied
简析: 很显然, 待选部分的逻辑主语是 his
hands, 而不是句子的主语 The murderer,
而 his hands 对于动词 tie来说, 只能是被
动承受。因此, 该题应选D。 Translation work:令人恐怖的场景
受了惊吓的马
令人失望的孩子
感到失望的孩子a frightening sight
a frightened horse
a disappointing child
a disappointed childPast Participle as the PredicativeExample:
But he became inspired when he thought about helping ordinary people.
Now find two more examples in the reading passage.1. 过去分词作表语，表示主语的特点或
所处的状态，其前的系动词有包括be
在内的多种形式。
Everyone present was very inspired at his
speech．
听了他的发言，在场的所有人都很振奋。
You seem frightened.
你似乎受了惊吓。 过去分词作表语，强调主语的特点或
所处的状态；而被动语态中，主语是
动词所表示动作的承受者。
This shop is now closed．
这家商店现在已经关门了。(状态)
This shop is closed at 6 pm every day．
这家商店每天下午6点关门。(动作) 2. 过去分词作表语，构成的系表结构
与被动语态的区别：过去分词作表语一般用来表示感受或状
态（系动词+过去分词)
No wonder he is excited! (predicative) 可以用作表语的常见的过去分词有：
delighted, disappointed, upset,
astonished, excited, frightened,
experienced, interested, qualified,
puzzled, exhausted, satisfiedComplete the sentences using the past participle as the predicative.1. 丢了钱他自责不已。
He __________ about losing the money.
2. 你为什么总是看上很疲劳？这些日子睡
得好吗？
Why do you always ___________ ?
Do you sleep well these days?got blamedlook so tired3. 我对昨晚看的电影很失望。我原以为它
能好些。
I _____________________ the film I saw
last night. I had expected it to be better.
4. 听说那位明星死了，人人都很惊讶。
Everybody ____________to hear the
death of the famous film star．was disappointed withwas shocked5. 要去动物园了，孩子们非常兴奋。
The children ______________________ going to the zoo．
6. 他的伤口感染了一种新病毒。
His wound ___________________ a new virus．are really excited aboutbecame infected with1. ____ in the traffic accident ____ taken
to hospital.
A. An injured, was
B. The injured, has
C. The injuring, were
D. The injured, have beenChoose the best answer.2. The girl ___ forward to buying a
new gold watch.
A. referred to look
B. referred to looking
C. referred to looks
D. referring to looks3. From the date ___ on the gold coin,
we decided that it was made 500
years ago.
A. marking
B. marked
C. to be marked
D. having been marked4. Experts think that we need to eat
meat because it contains vitamins
and minerals _____ in vegetables.
A. not finding
B. not to be found
C. not found
D. which is not found5. The business of on-line shopping so
far has been _____ for the sellers who
are already offering their services.
A. disappointed
B. disappointing
C. disappoint
D. to be disappointedThank you.课件29张PPT。Listening Unit 1 Great scientistsListen to Part 1.Using LanguageFather of the Chinese space programme
Yu Ping (YP) is talking to her friend
Steve Smith (SS) about Qian Xuesen
and his work as a rocket scientist. A GREAT CHINESE SCIENTISTFather of the Chinese space programme
Yu Ping (YP) is talking to her friend Steve
Smith (SS) about Qian Xuesen and his
work as a _____ ________. A GREAT CHINESE SCIENTISTrocket scientistListen again and fill in the blanks.YP: What do you want to be when you
_____ ___, Steve?
SS: I want to be an __________ and visit
stars. I wish to visit ______ one day.
YP: I think I’d like to work in the space
industry too. I'd like to be a ______
________ like Qian Xuesen.
SS: What did he have to do to become a
rocket scientist?grow upastronomerMarsscientistrocketYP: Well, he first studied at _________ to
be an engineer. Later he went to
America to study for his ________
_______. It was then he began to work
on rockets.
SS: So it was ______ for our space
programme that he came back to
China.universitydegreedoctor’sluckyYP: Very much so. There was no work ___
space rockets in China before he
began his ________ to design and
build rockets to go into space. instituteonListen to Part 2.Part 2
SS: Do you think he wanted to travel
into space in one of his rockets?
YP: I have no idea but I believe he
_______ ________ to the first space
flight by a Chinese astronaut.forwardlookedListen again and fill in the blanks.SS: Yes. Now that China has ______
satellites _____ space. I hope we’ll be
the _____ to land on Mars. That would
really be something special and if I
were that astronaut I would put Qian
Xuesen’s _______ on Mars to show
how much we _______ his work.sentintofirstadmirepictureYP: Indeed. He is rightly called the
_____ of the Chinese space programme.
He is my _____ and he is why I want to
be a rocket scientist.
SS: Well, we’d better ___ __ ____ our
homework. We need good _______
to get into university.
YP: Right you are. See you, then.
SS: See you.fatherheroget on withgradesWorkbook-Listening NAMING A FLOWER
Robert Briggs (RB) is talking to Zhang
Wei (ZW) about a new kind of lily he
has found. NAMING A FLOWER
Robert Briggs (RB) is talking to Zhang
Wei (ZW) about a new kind of ____ he
has found. Listen again and fill in the blanks.lilyZW: Hello Robert. What’s that book
you’re ________?
RB: A book that helps you _______ a
flower.
ZW: I see. Why do you want that?
RB: I’ve found this lily. It looks ________
to me. So I want to ____ ____ if it’s
new or not. Our biology teacher told
me that if it’s already ______, I’d
find it in this book.carryingidentifydifferentfind outknownZW: Wow! So you think you may have
found a new lily?
RB: I hope so, but I have to do some
________ first to find out for sure.
ZW: What happens if it’s in the book?
RB: It means that somebody else has
found it and _______ it. Then I’ll
know its biological name.
ZW: What do you mean by the ________
name?researchnamedbiologicalRB: Actually like us a flower has _____
names. The first is the group of
flowers it _______ to – like a family
name. A rose is one such group. The
second is the kind of flower – like a
_____ name. It may describe what
the rose ______ like; for example, the
colour of an autumn ______. Together
you get the flower’s name, which is
Rose Autumn Sunset.twobelongsgivenlookssunsetZW: Gosh! Who made that _______?
RB: A great ________ called Carl
Linnaeus. He lived in Sweden
from _____ to 1778.
ZW: So long ago!
RB: Yes, and he solved a very _______
problem for biology.
ZW: What was that?systemseriousscientist1707RB: Before him _______ could tell if a
plant was new, as there was no
way of ________. There’re so
many plants, you see!
ZW: Yes, I __________ that! So his
system is still used?
RB: ______ it is. If my flower isn’t in
this book, I’ll know that I’ve found
a new kind of lily.nobodycheckingappreciateIndeedZW: That’s great! Can I come and
help you? This research _______
fun.
RB: Yes, and if I’m lucky …
(fading out)soundsListen to Part 1.Workbook-Listening Task A MATHEMATICIAN'S PROBLEM
John Smith (JS) is talking to Zhao Yang
(ZY) about a mathematician who interests him. A MATHEMATICIAN'S PROBLEM
John Smith (JS) is talking to Zhao Yang
(ZY) about a mathematician who ________ him. Listen again and fill in the blanks.interestsJS: Do you know that we’ve been
studying Euler in ______?
ZY: Who is he? I’ve never ______ of
him.
JS: Well, he was a famous
mathematician in the _________
century. He revised all the _____
mathematics that was known in
his day.mathsheardeighteenthpureZY: That probably wasn’t very much.
JS: You’re wrong there. He wrote
_____ _____ any other
mathematician before or since.
ZY: Really! Well, what did he do?
JS: He introduced a lot of _______ into
mathematics ____ ___ pi and the
terms sin and cosin.more thansymbolssuch asZY: Wow!
JS: And he did half of this work
when he was ______.
ZY: How did he do that?
JS: He told his ideas to someone
else who _____ them _____.blindwrotedownListen to Part 2.Part 2
ZY: What were his ____________?
JS: He introduced a new _______ of
mathematics called topology.
It helps you understand things by
using ________. The _______ map
is a good example. Listen again and fill in the blanks.achievementsbranchdiagramssubway It does not tell you ________ but
it shows how stations ________
together.
ZY: How did he start topology?
JS: Well, in _____ he was _______
by a problem in the city of
Konigsberg where he lived.distancesconnect1735inspired Look at the map in your book.
Konigsberg had a river running
________ it. The centre is an ______.
As the river ______ the island, it breaks
into two parts. Seven bridges were built
_____ the river. Euler wondered if you
could walk _______ the city so that you
_____ each bridge only once.throughislandpassesoveraroundcrossZY: Let me try that. It sounds quite
______ to me.
JS: Try, but it’s not ___ easy ____ it
looks.simpleasasThank you.
