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lesson 53 Hot snake

热度 2已有 1140 次阅读2012-12-19 00:02

Lesson 53  Hot snake
2012/12/18 19:30   teacher goldheart
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 fireman 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 explaination 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.
go over

* hot :激动的,急躁的,发火的,激烈的,猛烈的;带电的;热的,热门的,热点的;热情的;辣的

a hot temper   temper['tempə]n. 脾气; 性情;倾向//a hot debate 辩论[dɪ'beɪt]
hot water/weather     The water is so hot.cool it and then drink.  形容词使动用法
a hot day //a hot topic(subject)热门话题
a hot girl /a hot lady    a sexy girl 
a hot snake带电的蛇
 Pepper and mustard are hot. ['pepə]胡椒,['mʌstəd] 芥末
blows hot and cold忽冷忽热,反复无常
fire : noun:(uncountable noun不可数)热情;火;
His speech lacks fire
 set sth.on fire =set fire to 放火//fire fighting名词短语/ fight fire(动词短语) 救火/ be on

* fire(静态)/ catch fire着火(动态) // protect /prevent fire防火[prɪ'vent]

countable noun['kaʊntəbl]可数)燃料,炉火;火灾;make a fire生火start a fire引起火灾// built a fire   light a fire 点火 put out a fire 扑火,灭火,fire alarm 警报器,警笛 fire fighter  消防员 light a candle点蜡烛 light sb. up 点燃某人的激情
vt. 把轰走;
炒鱿鱼,解雇 ;lay off // dismiss/ sack      employ/hire  employee
vi. 开火,射击;激动,兴奋  fire up生气,勃然大怒
 noun phrase名词短语:以名词为中心的偏正短语  forest fire   stone bridge /paper plane /women teacher 
动宾短语 联合短语 主谓短语 偏正短语

* cause(uncountable noun原因,起因;缘故,理由 

I have no cause to complain about it.

I have no cause for complaint.  find out the cause
the cause of the illness(desease[dɪ'ziːz]病,疾病)
 vt. 引起(直接),对比  lead to  //result in 导致。an accident caused by carelessness
 
* cause:实物导致的原因(直接引出结果)
*reason:理由。逻辑上的推理得出的原因
He had no reason to cry. She burst into  tears without reason(cause).
She burst into tears causelessly.  carelessly   adj+ly 描绘性副词
* result: n.结果,答案; 导致。 影响 effect [ɪ'fekt] // affect [ə'fekt]
without reason/cause 无缘无故
The drunk driving leads to this accident.
The car accident was caused by drunk driving.  speeding n:超速行驶adj超速行驶的
* examine v. 考试,检验,检查。审查,调查,诊查
考试,检查exam = examination    physical examination 体检 // have a blood examined 验血
* accident      by accident/chance   accidental[æksɪ'dent(ə)l]  accidently /occasionally 
* start  vi.出发;  start off/ set off/ send out
vt.开始;start work= begin to work.
发动  主动表被动。The car won't start.The engin won't start.
The door won't shut.
start/ fire a fight  on/upon  对。。。发动战争
*引起。start a fire make/ build a fire
start sb. doing
*discover 对早已经有的,客观存在的,被偶然发现或发掘了
find 要为地寻找、调查发现的。find out
**
现在完成时与现在完成进行时
相同点: 持续性。(强调过程,状态 ,不强调结果)表持续性的时候适于延续性动词(无限动词),比如live,learn lie stay sit wait stand wrest study等,常跟随this week/month, these days,recently ,all day, all night,all the morning等模糊的时间。与for ,since already引导的时间短语或从句 连用,表示持续时间的长度。动作持续到现在,不一定结束,还在继续。   现在完成进行时表达强烈的感情色彩。
I have been an English teacher for 20 years.
I have been an English teacher since 20 years ago.
I have been waiting for you for hours.
I have been waited for you for hours.
不同点:
现在完成时 1、影响性,结果性,表影响结果时适用于有限动词,与already,ever连用,表动作已完成。
I have even seen this movie .
I have read the book.
2、一次性 临时性 live
现在完成进行时有重复性 反复性,没有现在完成时的影响性和结果性,一般不与already,ever连用。
 例句:You have been saying that for a day.
         I  have been seeing him in the street.  
 

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