新概念第三册第9课课文讲解

一、Text 课文

How do cats try to protect themselves when falling from great heights?

Cats never fail to fascinate human beings.

never?fail?to 双重否定意味肯定（运用双重否定结构加深句子肯定的语气）

-- If you ask for help in the polite way, you never fail to succeed.

-- If you r eceive requests like this, you‘ll never fail to accept.

双重否定结构：（起加深句子肯定的语气的作用）

1>否定词+fail?to

-- never?fail?to / can‘t?fail?to / don‘t?fail?to

2>否定的形容词之前加以否定

-- What he said is not unreasonable.（adj.不讲道理的, 不合理的）

-- It is quite common for us to make mistakes.

= It is not uncommon for us to make mistakes.

3> not + without

-- You can‘t obtain English without working hard. Obtain（vt.获得, 得到）-- He doesn‘t have any meal without meats.

4> no + not

-- There is no cat that doesn‘t like fish.

-- There is nothing that he can‘t do. 没有什么他不能做的。

-- There is no rule that has no exception. 没有无例外的法规。Exception（n.除外, 例外）

They can be friendly and affectionate towards humans, but they lead

mysterious lives of

their own as well.

as well 也, 又, 同样

They never become submissive like dogs and horses.

As a result, humans have learned to respect feline independence.

as a result adv.结果

have?learned?to 学会了, 习惯了

-- People have learned to expect(盼望) that trains are punctual.（adj.准时的）-- Children have learned to expect(认为) that their parents are very able.（adj.能干的）

Most cats remain suspicious of humans all their lives.

be?suspicious?of… 对…表示怀疑, 存有戒心

One of the things that fascinates us most about cats is the popular belief that they have nine

lives.

that?引导同位语从句

-- One of the things that fascinates us most about planes is the popular fact that they are safe and

fast.

Apparently, there is a good deal of truth in this idea. herehere

a?good?deal?of +不可数名词

apparently（adv.显然地），语气不是非常确定（= It seems that...）

A cat‘s ability to survive falls is based on fact.

Survive（v.幸免于, 幸存, 生还）

Fall（n.堕落, 落下, 下降）

-- a cat‘s ability to survive falls is based on fact

be?based?on 基于事实基础之上

base?sth?on … 把某事建立在…基础之上

-- We base the theory on the fact. 我们把这理论建立在事实的基础之上。

-- The theory is based on fact. 这理论是建立在事实基础上的。

Recently the New York Animal Medical Center made a study of 132 cats over a period of five

months.

make?a?study?of?sth 对什么作出研究

over a period of five months

All these cats had one experience in common: they had fallen off high buildings, yet only

eight of them died from shock or injuries.

in common = the same

fall?off 坠落，掉落

die?of?+ illness, disease, hunger, thirst

die?from?+ shock, injures, wound