新概念英语第二册课文全部讲解（新概念英语二册L53单词讲解）

New words and expressions】 生词和短语

★hot　adj. 带电的，充电的

热的

hot-hot-hot: 麻辣烫

hot-wings: 辣鸡翅

hot-tempered :火爆(脾气)的

hot-line :热线

hot topic :热门话题

hot cake :热蛋糕

hot dog :热狗

It sells like a hot cake/cakes.

hot :新鲜的

best seller: 畅销的东西

hot potato :棘手的问题

hot news :最热点的新闻

hot snake

★fireman　n. 消防队员

hydrant: 消防栓

fire extinguisher:灭火器

extinguish=put out: 灭火

★cause　v. 引起； n. 原因

cause sth.:引起麻烦

Carelessness causes accidents.

Pride causes failure.

cause sb to do sth. :导致某人做某事

Illness caused him to lose his temper

Because 因为 be cause

reason : 理由, cause 原因

cause :强调事情发生的直接原因(一个)

reason :其他各种的理由(很多个)

★examine　v. 检查

examine the soil

check :核实,核对

★accidentally　adv. 意外地，偶然地

accident->accidental->accidentally

accident :事故

unexpectedly :出乎意料地

Unexpectedly he didn't go.

I met the famous writer accidentally.

★remains　n. 尸体，残骸

dead body

★wire　n. 电线

★volt　n. 伏特（电压单位）

★power line　电力线

★solve　v. 解决

solve the mystery(迷)

solve the problem

★mystery　n. 谜

★snatch　v. 抓住

catch: 抓鱼

hold

snatch :突然抓起来

seize : 抓住(用力)

seize my arm

★spark　n. 电火花

　　First listen and then answer the question.

　　听录音，然后回答以下问题。

　　What caused the fire?

　　At last firemen have put out a big forest fire in California. Since then, they have been trying to find out how the fire began. Forest fires are often caused by broken glass or by cigarette ends which people carelessly throw away. Yesterday the firemen examined the ground carefully, but were not able to find any broken glass. They were also quite sure that a cigarette end did not start the fire. This morning, however, a firemen accidentally discovered the cause. He noticed the remains of a snake which was wound round the electric wires of a 16,000-volt power line. In this way, he was able to solve the mystery. The explanation was simple but very unusual. A bird had snatched up the snake from the ground and then dropped it on to the wires. The snake then wound itself round the wires. When it did so, it sent sparks down to the ground and these immediately started a fire.

参考译文

　　消防队员们终于扑灭了加利福尼亚的一场森林大火。从那时起，他们一直试图找出起火的原因。森林火灾时常由破碎的玻璃或人们随手扔掉的香烟头引起。昨天，消防队员仔细查看了地面，但未能发现碎玻璃。他们还十分肯定火灾也不是由烟头引起的。然而今天上午，一个消防队员偶然发现了起火的原因。他发现了缠绕在16,000伏高压线上的一条死蛇。就这样，他解开了起火之谜。解释很简单，却异乎寻常。一只鸟把蛇从地上抓起来，然后把它扔到了电线上。于是蛇就缠住了几根电线。当它这样做时，把火花送到了地面，这些火花立刻引起了一场大火。

【课文讲解】

put out a fire : 扑灭火

a fire :一场(堆)火

since then: 从那时起到现在为止

have been trying to

现在完成时强调的是很有可能

broken glass :被打碎的玻璃片

cigarette ends :烟头

be able to

be sure that :对...很有把握

quite sure :相当的把握性

rather: 相当

fairly

quite(=completely)->rather->fairly

quite a few :颇有几个(相当多的)

start a fire= cause a fire

accidentally :偶然地

unexpectedly :出乎别人意料之外

cause :直接原因

notice :注意别人不注意的东西

wound

wind one's way :蜿蜒而行

wind　vt. 盘旋,缠绕

16,000-volt power line

连字符一旦加在两个词中间,这个词之间就失去了加复数的资格,能够加连字符的概念一定是做定语

in this way :以这种方式

explanation:解释

had done

drop

it->snake

do so :这么做

I refuse to do so

send 宾补

down to the ground

these->sparks

hot snake :触电的蛇

get an electric　shake :触电

now that : 既然

quite/quiet

quiet adj. 安静的

quite adv. 相当地,非常地,很

cause/reason

reason:理由　 cause:原因(直接)

cause v.

1. cause sth..导致,引起

2.cause sb to do sth...导致某人做某事

reason v.

reason with sb　劝说(以道理)

beg for sth :乞求什么东西

drop/fall

drop vt. 宾语(名词或代词),强调的是不小心掉下来

fall vi. 无宾语, 强调的是掉下来的概念,动作

【Multiple choice questions】

6. key phrase : be able to = can, succeed in doing

11. in this way 以这种方式 = that's how

　　like 在英文中不表示方式

【Summary writing】

1. now that 既然

Now that firemen have put out a big forest fire in California,they have been trying to discover its cause.

2. 区分同位语和定语从句的区别:

　 如果that做了主语或者宾语,是定语从句

　 如果that即不作主语也不作宾语,是同位语从句

5. In winding itself around the wires the snake had sent sparks to the ground and it caused the fire.

介词in,on 放在动词-ing前面的理解方式和没有in,on的理解方式一样

,