Lesson 1 A puma at large 逃遁的美洲狮
一、【Text】课文
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 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 nigh
t 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.
  二、【New words and expressions】 生词和短语
◆puma        n. 美洲狮
◆spot  v. 看出，发现
◆evidence    n. 证据
◆accumulate      v. 积累，积聚
◆oblige      v. 使…感到必须
◆hunt  n. 追猎；寻
◆blackberry        n. 黑莓
◆human being    人类
◆corner      v. 使走投无路，使陷入困境
◆trail  n. 一串，一系列
◆print        n. 印痕
◆cling (clung, clung )        v. 粘
◆convince    v.使…信服
◆somehow  adv. 不知怎么搞地，不知什么原因
◆disturb      v. 令人不安
 
学习词汇时仅知道汉语语义是不够的，要把单词放在语句中体会其应用
学习关键句型结构时则要把它放在段落结构或文章里
 
★spot  v. 看出，发现
pick out / see / recognize / catch sight of 
eg: A tall man is easy to spot in the crowd.
He has good eye for spotting mistakes. 他有敏锐的识别错误的能力。
spot(做动词时候) = see:强调结果、辨别出、看见、识别、发现。
find 强调发现的结果。
find out 查出事实真相。
discover 做出重大发现
notice 注意到
observe 观察
watch 观察活动中的人或画面
spot n. 斑点
eg: There is a white spot on the shirt.
on the spot 
1,立刻，马上（at once, immediately ）
Anyone breaking the rules will be asked to leave on the spot.
2,at the place of the action 在现场
Wherever she is needed , she is quickly on the spot.
 
★evidence [u]n. 证据
When the police arrived, he had already destroyed the evidence.
evidence=proof
in evidence:显而易见的.
He was in evidence at the party.
evidently adv.
evident adj.
lesson是什么意思中文 
★accumulate vt,vi. 积累，积聚
accumulate  强调积累的过程
As the evidence accumulates, experts from the zoo felt obliged to investigate.
gather vt. 聚集，把某人召集在某处
collect 收集，采集
assemble  集合，集会， vt. 装配
hoard  大量地贮存
The squirrel hoards up nuts for the cold winter.
hoard up= store up
amass 积聚（主要用于诗歌和文学作品）
 
★oblige  v. 使…感到必须
feel obliged to do sth.感觉有必要做某事
be obliged to do sth 被迫做某事
 
★hunt  n. 追猎；寻
run after 强调追赶、追求.
seek  追寻（梦想，理想） = pursue
chase 追赶.
hunt for
search 搜寻某处为了寻到某人或某物
 
★corner  v. 使走投无路，使陷入困境
corner n. 角落
at the corner of the street
in the corner of the room
on the corner of the desk
be cornered ………被逼得走投无路
常用于被动语态：
The thief was cornered at last.
The problem cornered me.这个问题把我难例了。
 
★trail n. 一串，一系列
trail==follow  vt. 跟踪
eg: The police trailed the criminal to the place where he was hiding.
 
★cling (clung, clung ) v. 粘
eg: She is always clinging to her mother.
He clung to the hope that he would succeed.(抱有，怀有)
stick 粘住 stick to 坚持 sticky adj. 粘的
 
★convince vt. 使…信服
convince sb. of sth  使sb相信sth
和宾语从句that 搭配使用
没有宾语的情况下要采用主系表结构：be convinced
sb be convicned  sb相信
 
★somehow  adv. 不知怎么搞地，不知什么原因
by some means, in some way, for some reason unknown
somewhat ==a little
 
★disturb  v. 令人不安
      disturbing adj. 令人不安的  disturbed      感到不安的
      surprising      令人吃惊的    surprised        感到吃惊的

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