Lesson 1 A puma at large 逃遁的美洲狮

【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；寻找
◆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
to notice someone or something, especially when they are difficult to see or recognize
e.g:I spotted a police car behind us.
It can be hard for even a trained doctor to spot the symptoms of lung cancer.
I spotted someone coming out of the building.
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。
同意词比较：
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 n. 证据 不可数名词
When the police arrived, he had already destroyed the evidence.
evidence=proof(n.证据)
in evidence:显而易见的.
He was in evidence at the party.
evident adj./evidently adv.

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
we gathered under tower clock.
The teacher gathered his students in the class.
collect 收集，采集
Do you collect stamps?Yes,I collect stamps as my hobby.
assemble
集合，集会， vt. 装配
A large number of people assemble on the square.
hoard
大量地贮存hoard up= store up
The squirrel hoards up nuts for the cold winter. (squirrel n.松鼠;
nut n. 坚果)
amass 积聚（主要用于诗歌和文学作品）
The clouds amassed above the hills.

★oblige
v. 使…感到必须make sb feel it is necessary to do sth
feel obliged to do sth. =feel that you have a duty to do something感觉有必要做某事
I feel obliged to say no to his demand(n.要求).
I felt obliged to invite him.
be obliged to do sth 被迫做某事
They were obliged do sell their car to pay their debts off.(debt n.债务, 罪过)
Circumstances had obliged him to sell the business.

hunt
vt.n. 追猎；寻找
The experts form London zoo bagan to hunt(vt.) for a puma.
The hunt(n.) for the puma proved the difficulte.
search 搜寻某处为了寻找到某人或某物,与hunt意义极其接近
The ploice were searching the forest for the missing boy.And the search for that boy proved the difficulte.
run after 强调追赶、追求.
Look,a dog is running after a cat.
What are you running after in your life?
seek
追寻（梦想，理想= pursue）多用于书面
chase 追赶.They are chasing a thief./They are running after a thief.

★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.这个问题把我难倒了。