Listen to the tape then answer the question below.
聽錄音，然后回答以下問題。
Where must the puma have come from?
Pumas are large, cat-like animals which are found in America. When reports came into London Zoo that a wild puma had been spotted forty-five miles south of London, they were not taken seriously. However, as the evidence began to accumulate, experts from the Zoo felt obliged to investigate, for the descriptions given by people who claimed to have seen the puma were extraordinarily similar.
The hunt for the puma began in a small village where a woman picking blackberries saw‘a(chǎn) large cat’only five yards away from her. It immediately ran away when she saw it, and experts confirmed that a puma will not attack a human being unless it is cornered. The search proved difficult, for the puma was often observed at one place in the morning and at another place twenty miles away in the evening. Wherever it went, it left behind it a trail of dead deer and small animals like rabbits. Paw prints were seen in a number of places and puma fur was found clinging to bushes. Several people complained of‘cat-like noises’at night and a businessman on a fishing trip saw the puma up a tree. The experts were now fully convinced that the animal was a puma, but where had it come from? As no pumas had been reported missing from any zoo in the country, this one must have been in the possession of a private collector and somehow managed to escape. The hunt went on for several weeks, but the puma was not caught. It is disturbing to think that a dangerous wild animal is still at large in the quiet countryside. New words and expressions 生詞和短語
puma(title)/'pju:m /n. 美洲獅
corner(1. 9)/'k&:n /v. 使走投無路，使陷入困境
spot(1. 2)/sp&t/v. 看出，發(fā)現(xiàn)
trail(1. 11)/'treil/n. 一串，一系列
evidence(1. 4)/'evid ns/n．證據(jù)
print(1. 12)/print/n. 印痕
accumulate(1. 4)/e'kju:mjuleit/v. 積累，積聚
cling(1. 12)/kliR/(clung/kl)R/, clung)v. 粘
oblige(1. 5)/ 'blaid{/v. 使……感到必須
convince(1. 14)/k n'vins/v. 使……信服
hunt(1. 7)/h)nt/n. 追獵；尋找
somehow(1. 16)/'s)mha(/adv. 不知怎么搞地，不
blackberry(1. 8)/'bl$kb ri/n. 黑莓 知什么原因
human being(1. 9)/?hju:m n-'bi:iR/人類
disturb(1. 17)/di'st*:b/v. 令人不安
Notes on the text
課文注釋
1 at large是介詞短語，此處表示“逍遙自在”、“行動自由”的意思。
2 When reports came into London Zoo that a wild puma had been spotted forty-five miles south of London, 當倫敦動物園接到報告說，在倫敦以南45英里的地方發(fā)現(xiàn)一頭野生美洲獅時。這個從句中以that引導的從句是reports的同位語，用于進一步說明報告的內(nèi)容。
3 feel obliged to do sth. 是“感到不得不做某事”的意思。
4 it left behind it a trail of, 它身后留下一串……。
a trail of作left的賓語，behind it是狀語，提到賓語之前是為了使句子結(jié)構(gòu)更緊湊。
5 puma fur was found clinging to bushes中，clinging是現(xiàn)在分詞，此處作主語puma fur的主語補足語。下文中As no pumas had been reported missing…一句中，missing也是現(xiàn)在分詞作主語補足語。
6 in the possession of, 為……所有。
參考譯文
美洲獅是一種體形似貓的大動物，產(chǎn)于美洲。當倫敦動物園接到報告說，在倫敦以南45英里處發(fā)現(xiàn)一只美洲獅時，這些報告并沒有受到重視。可是，隨著證據(jù)越來越多，動物園的專家們感到有必要進行一番調(diào)查，因為凡是聲稱見到過美洲獅的人們所描述的情況竟是出奇地相似。
搜尋美洲獅的工作是從一座小村莊開始的。那里的一位婦女在采摘黑莓時看見“一只大貓”，離她僅5碼遠，她剛看見它，它就立刻逃走了。專家證實，美洲獅除非被逼得走投無路，是決不會傷人的。事實上搜尋工作很困難，因為常常是早晨在甲地發(fā)現(xiàn)那只美洲獅，晚上卻在20英里外的乙地發(fā)現(xiàn)它的蹤跡。無論它走到哪兒，一路上總會留下一串死鹿以及死兔子之類的小動物。在許多地方看見了爪印，灌木叢中也發(fā)現(xiàn)了粘在上面的美洲獅毛。有人抱怨說夜里聽見了“像貓一樣的叫聲”；一位商人去釣魚，看見那只美洲獅在樹上。專家們?nèi)缃褚呀?jīng)完全肯定那只動物就是美洲獅，但它是從哪兒來的呢？由于全國動物園沒有一家報告丟了美洲獅，因此那只美洲獅一定是某位私人收藏家豢養(yǎng)的，不知怎么設法逃出來了。搜尋工作進行了好幾個星期，但始終未能逮住那只美洲獅。想到在寧靜的鄉(xiāng)村里有一頭危險的野獸繼續(xù)逍遙流竄，真令人擔心。
Summary writing 摘要寫作
In not more than 80 words describe how experts came to the conclusion that the animal seen by many people really was a puma. Do not include anything that is not in the passage.
Answer these questions in note form to get your points:
1 What sort of reports were received by London Zoo?
2 Were the reports similar in nature or not?
3 Who saw it first?
4 Did it stay in one place,or did it move from place to place?
5 What did it leave behind it?
6 Were paw prints and puma fur found as well or not?
7 What was heard at night?
8 Was the animal seen up a tree or not?
9 Were experts now sure that the animal really was a puma or not?
Vocabulary
詞匯
Give another word or phrase to replace the following words as they are used in the passage:spotted(1. 2);accumulate(1. 4); obliged to(1. 5); claimed(1. 6); extraordinarily similar(1. 6); immediately(1. 8); convinced(1. 15).
Composition
作文
Describe the occasion when the woman picking blackberries saw the puma. Expand the following into a paragraph of about 150 words.
Mrs. Stone had spent the whole morning…It was nearly lunch time, so she decided…She was just…when she heard a noise in…Then she saw an animal which…She knew it was not a cat because… The animal suddenly…and she thought it was going to…She dropped her basket and…Hearing the sound, the animal…after which, Mrs. Stone…and they…(86 words)
Letter writing
書信寫作
On a full page, show the exact position of each of the following:
The address and date;the beginning of the letter;the Introduction;the Purpose;the Conclusion;the letter-ending;the signature;the postscript. Supply all necessary full stops and commas.
Key structures
關(guān)鍵句型
Simple, Compound and Complex Statements. 簡單句、并列句和復合句（IKS 73）（參見第2冊第73課關(guān)鍵句型）
Exercise練習
Underline all the joining words in the passage. Note carefully how simple statements have been joined to make compound or complex statements.
Special difficulties
難點
過去曾有一種傳統(tǒng)的規(guī)定，認為英文句子不允許以介詞結(jié)尾。現(xiàn)在，這種所謂的禁忌早以破除。在現(xiàn)代英語中，除正體書面語體外，以介詞結(jié)尾的句子很多，在口語中更為常見。
Where had it come from? (1. 14)
Instead of saying:
It is better to say:
About whom are you talking?
Who(m)are you talking about?
That is the film about which I told you.
That is the film I told you about.
(Compare ISD 28) （對比第2冊第28課難點）Exercises練習
A Complete these sentences by adding a suitable word to the end of each one:
1 What are you looking ______ ?
2 Where is your mother going ______ ?
3 Whom has the letter been sent ______ ?
4 This is the house I was born ______ .
5 What does your decision depend ______ ?
B Write these sentences again changing the position of the words in italics. Where possible, omit the words whom or which.
1 He is the man about whom we have heard so much.
2 The shelf on which you put those books has collapsed.
3 From whom did you receive a letter?
4 This is the road by which we came.
5 Where is the pencil with which you were playing?
Multiple choice questions 多項選擇題
Choose the correct answers to the following questions.
Comprehension 理解
1 Experts eventually decided to investigate ______ .
a．because they did not believe that pumas existed in England
b．because they wanted a puma for the London Zoo
c．when a woman saw a puma in a small village
d．because people's descriptions of the puma had a lot in common
2 What particular piece of evidence persuaded the experts that a puma had been seen in the village?
a．The puma had not attacked the woman.
b．The woman had described the animal she had seen as‘a(chǎn) large cat’.
c．A puma had come very close to a human being.
d．The puma had behaved like a cat.
3 What was the problem the experts were unable to solve?
a．How the puma had managed to cover such great distances within a day.
b．How the puma had escaped from a zoo.
c．Whom the puma had belonged to.
d．How the numa had climbed a tree.
Structure結(jié)構(gòu)
4 The accumulating evidence made the experts ______ the animal was a puma. (lines 4-6)
a．to think
b．thinking
c．think
d．thought
5 People said ______ the puma. (lines 5-6)
a．to have seen
b．to see
c．they saw
d．they had seen
6 ______ , it immediately ran away. (lines 8-9)
a．Observing her
b．On being observed
c．Having been observed
d．On her being observed
7 Pumas never attack a human being except ______ cornered. (line 9)
a．they are
b．being
c．that they are
d．when they are
8 The experts were now fully convinced that the animal ______ a puma. (lines 13-14)
a．must be
b．should have been
c．can only be
d．could only have beenVocabulary詞匯
9 The woman saw‘a(chǎn) large cat’ ______ five yards away from her. (lines 7-8)
a．a(chǎn)t least
b．four or
c．no more than
d．within
10 A puma will not attack a human being unless it feels itself to be ______ . (line 9)
a．in a corner
b．in a trap
c．a(chǎn)t an angle
d．under cover
11 A business man on a fishing trip is probably someone who ______ . (line 13)
a．sells fish
b．fishes for pleasure
c．nets fish
d．earns his living as a fisherman
12 A private collector is a man who collects ______ . (lines 15-16)
a．for his own benefit
b．on his own
c．in private
d．unknown to the public