新概念第二册_lesson_53课件
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新概念二册Lesson53课课件(共49张PPT)
(This morning. ) 11 Who discovered it?
(A fireman did. ) 12 Was it what he was looking for?
(No, it wasn't. )
13 What did he notice? The remains of a snake which was wound round the electric wires of a 16, 000-volt power line.
▪ at last 最后，终于
▪ put out a fire
扑灭火
（put out扑灭，熄灭，关掉）
▪ Please put the light/fire out.
▪ a fire 一场(堆)火
▪ 3、Since then, they have been trying to find out how the fire began.
▪ since then 从那时起，到现在为止 ▪ find out （经过研究、努力等）找出，
发现，查出……（这里find out的宾语是个 从句）
▪ I’ll try and find out the name of the person who saved my life yesterday.
▪ accidentally =by chance 偶然地 ▪ discover本身含有偶然发现（某个已经存
在的东西）的含义
▪ I don’t know who discovered America. ▪ 7、He noticed the remains of a snake
which was wound round the electric wires of a 16,000-volt power line. ▪ notice 注意别人没注意的东西 ▪ the remains表示“尸体，残骸”，必须用 复数形式：
(A fireman did. ) 12 Was it what he was looking for?
(No, it wasn't. )
13 What did he notice? The remains of a snake which was wound round the electric wires of a 16, 000-volt power line.
▪ at last 最后，终于
▪ put out a fire
扑灭火
（put out扑灭，熄灭，关掉）
▪ Please put the light/fire out.
▪ a fire 一场(堆)火
▪ 3、Since then, they have been trying to find out how the fire began.
▪ since then 从那时起，到现在为止 ▪ find out （经过研究、努力等）找出，
发现，查出……（这里find out的宾语是个 从句）
▪ I’ll try and find out the name of the person who saved my life yesterday.
▪ accidentally =by chance 偶然地 ▪ discover本身含有偶然发现（某个已经存
在的东西）的含义
▪ I don’t know who discovered America. ▪ 7、He noticed the remains of a snake
which was wound round the electric wires of a 16,000-volt power line. ▪ notice 注意别人没注意的东西 ▪ the remains表示“尸体，残骸”，必须用 复数形式：
高二英语新概念第二册lesson_53课件(共20张)
2. What often cause forest fires? Forest fires are often caused by broken glass or by
cigarette ends which people carelessly throw away. 3. Did broken glass and cigarette end cause the fire?
12
• He noticed the remains of a snake which was
wound round the electric wires of a 16,000-volt
power line.
• the remains • 表示“尸体，残骸”，必须用复数形式
★ remains
• 1）n. 遗体,遗骸
He noticed the remains of a snake which had been dropped by a bird on to the electric wires.
5. Where did the snake wind itself? What had it sent to the ground? Did this cause the fire or not?( In winding …and)
• since then 从那时起，到现在为止
11
• This morning, however, a firemen accidentally discovered the cause.
• However与but区别： • However要接逗号，再加句子。 • But直接与句子相连。 ★ accidentally adv. • accidental adj. • accident n. • by chance=by accident • 我偶然间发现了金矿 • I found a gold mine by accident
cigarette ends which people carelessly throw away. 3. Did broken glass and cigarette end cause the fire?
12
• He noticed the remains of a snake which was
wound round the electric wires of a 16,000-volt
power line.
• the remains • 表示“尸体，残骸”，必须用复数形式
★ remains
• 1）n. 遗体,遗骸
He noticed the remains of a snake which had been dropped by a bird on to the electric wires.
5. Where did the snake wind itself? What had it sent to the ground? Did this cause the fire or not?( In winding …and)
• since then 从那时起，到现在为止
11
• This morning, however, a firemen accidentally discovered the cause.
• However与but区别： • However要接逗号，再加句子。 • But直接与句子相连。 ★ accidentally adv. • accidental adj. • accident n. • by chance=by accident • 我偶然间发现了金矿 • I found a gold mine by accident
新概念二53课PPT
2012 is coming soon! Natural disasters are happening with increasing
frequency.
['nætʃərəl] [dɪ'zæstɚs ]
sandstorm ['sæ nd,stɔrm] 沙尘暴
volcano[vɑl'keno] 火山
smoke
Cause of the fire!
Some words about another fire
[hɑt] ['faɪrmən] [kɔz] [ɪg'zæmɪn] [,æksə'dɛntlɪ] [rɪ'menz] [sɑlv]
hot fire/man cause
adj. 带电的, 充电的 n .火花 n .谜 adv. 意外地, 偶然地 n. 尸体, 残骸
1. Yesterday the fire-men examined the ground carefully, but were not able to find any broken glass. 2. which people carelessly throw away. This morning,they were also quite sure that a cigaretteed did not start the fire. 3.
WHY?
A bird had snatched up the snake from the ground and then dropped it on to the wires.
Hot snake
At last firemen have put out a big forestfire in California.Since then, they have been trying to find out how the fire began. Forest fire are often caused by broken glass or by cigarette ends which people carelessly throw away. Yesterday the fire-men examined the ground carefully, butwere not able to find any broken glass.They were also quite sure that a cigaretteend did not start the fire. This morning,however, a fireman accidentally dis-covered the cause. He noticed the remainsof a snake which was wound round the electric wires of a 16,000-volt power line.In this way, he was able to solve themystery. The explanation was simple butvery unusual. A bird had snatched up the snake from the ground and thendropped it on to the wires. The snake then wound itself round the wires.Whenit did so, it sent sparks down to the ground and these immediately started a fire.
新概念英语第二册课件Lesson53(共50张PPT)
★cause
be caused by…
• 1）V. 引起
某事由…引起
• cause sth : 引起（麻烦）
• 粗心导致事故 • Carelessness causes accidents.
carelessness
• 骄傲使人失败
• Pride causes failure
• cause sb to do sth
5. They were also quite sure that a cigarette end did not start the fire. 他们还十分肯定火灾也不是由烟头引起的。
be sure 确定 Be sure to sweep the room clean. 一定要把房间打扫干净。 I am sure you would get along very well with him. 我相信你一定会跟他相处得很好。 One thing is sure; he can't have gone far. 有一点是肯定的，他不可能走得很远。 She is sure to pass the examination. 她一定会通过考试。
• Pepper and mustard are hot. • 3）强烈的,激烈的,热烈的. • have a hot temper 脾气暴躁
• a hot potato • 棘手或讨厌的事物或情况
★fireman=firefighter • n 消防队员 • hydrant [`haidrənt] • n.消防栓 • fire extinguisher • 灭火器 • Extinguish [ik`stiŋgwiʃ] • ＝put out • 灭火
3. Forest fires are often caused by broken glass or by cigarette ends which people carelessly throw away. 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。
新概念英语第二册lesson53(共28张PPT)
Fill in the blanks 3
We have just moved _i_nt_o_a new house and I have been working hard all morning. I have been trying __to__get my new room in order. This has not been easy because I own over a thousand books. __T_o_make matters worse, the room is rather small, so I have temporarily put my books __on__the floor. At the moment, they cover every inch of floor space and I actually have to walk __on__them to get __in__or out of the room. A short while ago, my sister helped me to carry one of my old bookcases up the stairs. She went _i_n_to_my room and got a big surprise when she saw all those books __on__the floor. 'This is the prettiest carpet I have ever seen,' she said. She gazed __a_t_it _f_o_r_some time then added, 'You don't need bookcases at all. You can sit here __in__your spare time and read the carpet!'
新概念二册53课课件
Careful reading
8. A bird had snatched up the snake and 7. 5. 4. He No. Forest noticed Though fires the the are remains firemen often caused of examined a snake by dropped it onto the wires. Then the snake 9. The explanation is simple and 6.They discovered the cause 3. The They have been trying to out findin out 1. big forest fire broke 2.Yes, it has been put out at last. which the broken ground was glass wound carefully, or by round cigarette they the were electric ends not wound itself round the wires and sent unusual, but acceptable in my opinion. accidentally/quite by accident. 偶然地 how the fire began. California. wires able which to of people find a 16,000-volt any. carelessly power throw line. away. sparks down to the ground, starting a fire.
preventive measures
第二册新概念英语NCE2_Lesson53 Hot snake(共22页)最新精品课件.ppt
Do you know the man wearing glasses over there?
cigarette ends香烟头 which 引导定语从句，在从句中充当宾语 that
• What can we do to avoid forest fire? • 1.awareness 意识 • 2.from small things • 3.from ourselves • 3.call on 呼吁
53.Hot Snake 触电的蛇 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.
• Because 因为 be cause
• ★examine v. 检查 • examine sth.
examination n. physical examination 身体检查
• ★accidentally adv. 意外地，偶然地 • accident : n. 事故 • accident-accidental-accidentally • I met my favorite singer star accidentally.
cigarette ends香烟头 which 引导定语从句，在从句中充当宾语 that
• What can we do to avoid forest fire? • 1.awareness 意识 • 2.from small things • 3.from ourselves • 3.call on 呼吁
53.Hot Snake 触电的蛇 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.
• Because 因为 be cause
• ★examine v. 检查 • examine sth.
examination n. physical examination 身体检查
• ★accidentally adv. 意外地，偶然地 • accident : n. 事故 • accident-accidental-accidentally • I met my favorite singer star accidentally.
新概念英语第二册第53课完美版PPT
★ wire • n. 金属线，电线 • 他用一根金属线把筐绑到了自行车上。 • He tied a basket to the bicycle with a piece of wire. • telephone wires 电话线 • Electric wires 电线 • wireless adj. 无线的 • wireless telegraphy 无线电报 ★volt n. 伏特 • voltage n. 电压,伏特数
2. Since then, they have been trying to find out how the fire began. 从那时起，他们一直试图找出起火的原因。 since then 从那时起，到现在为止 find out （经过研究、努力等）找出，发现，查出…… We shall find out the truth early or late. 我们迟早会查明事实真相。 Go and find out the truth to report back quickly. 立刻查明事实真相回来汇报。 我会试着查出昨天救了我的人的名字。 I’ll try and find out the name of the person who saved my life yesterday.
Comprehension questions
1 Where was there a big forest fire? In California. 2 Have firemen put it out? Yes, they have. 3 What have they been trying to find out since then? How the fire began. 4 What are forest fires often caused by? Broken glass or cigarette ends.
新概念第二册 LESSON 53 课件
the day you went away so sad but true for me there's only you been crying since the day the day you went away the day you went away the day you went away did i lose my love to someone better and does she love you like i do i do, you know i really really do well hey so much i need to say been lonely since the day the day you went away so sad but true for me there's only you been crying since the day the day you went away why do we never know what we've got till it's gone how could i carry on the day you went away cause i've been missing you so much i have to say been crying since the day the day you went away the day you went away the day you went away
T：dictionary S1：Could you lend me your dictionary? S2：I'm sorry, I lent it to Tom last week and he hasn't returned it yet. ladder garden tools suitcase hammer
新概念英语第二册第53课课件
The cause of sth ……的起因
The reason for sth ……的理由
10
examine • 1）v. 仔细观察,检查,调查 • 消防队员检查了森林的每一寸土地。 • The firefighters examined every inch of the forest. • 2）v. 诊பைடு நூலகம் • 医生仔细的诊察了病人。 • The doctor examined his patient carefully. • 3）v. 考试,测试 • examine students in English • n. exam 考试=examination
11
accidentally adv. 意外地,偶然地 • adj. accidental 意外的,偶然的 • accident n. 事故,意外 • 车祸 • a car accident • 偶然 • by chance=by accident • 我偶然间发现了金矿。 • I found a gold mine by accident.
13
wire
• n. 金属线，电线
• telephone wires 电话线
• electric wires
电线
• wireless adj. 无线的
volt n. 伏特 • voltage n. 电压,伏特数
14
power • 1）电力，动力 • electric power 电力 • 2）权力,支配力,势力 • political power 政治权力
5
adj. 带电的，通电的 n. 消防队员 v. 引起； n. 原因 v. 检查 adv. 意外地，偶然地 n. 尸体，残骸 v. 缠绕 n. 电线 n. 伏特（电压单位） 电力线 v. 解决 n. 谜 v. 抓住 n. 电火花
新概念英语第二册Lesson 53 (共69张PPT)
prehension questions
• What have they been trying to find out since then?
• How the fire began.
Comprehension questions
• What are forest fires often caused by? • Broken glass or cigarette ends.
• What did he notice? • The remains of a snake which was wound
round the electric wires of a 16, 000-volt power line.
WORDS
New words and expressions
New words and expressions
or by cigarette ends which people carelessly throw away. • He threw the ball to me and I caught it. • The boy threw a stone at the window and broke it.
• 用quiet和quite造句。
Text
• He began his diet a week ago.
Text
• This morning, however, a firemen accidentally discovered the cause.
Understand the situation
• T: What do you think is happening in the picture?
• What have they been trying to find out since then?
• How the fire began.
Comprehension questions
• What are forest fires often caused by? • Broken glass or cigarette ends.
• What did he notice? • The remains of a snake which was wound
round the electric wires of a 16, 000-volt power line.
WORDS
New words and expressions
New words and expressions
or by cigarette ends which people carelessly throw away. • He threw the ball to me and I caught it. • The boy threw a stone at the window and broke it.
• 用quiet和quite造句。
Text
• He began his diet a week ago.
Text
• This morning, however, a firemen accidentally discovered the cause.
Understand the situation
• T: What do you think is happening in the picture?
新概念英语第二册lesson_53课件
cause 和 reason
• 多数情况可互换，微小区别在于cause 多用于表 示明显因果关系的原因，reason 多用于某些结 果不言而喻。 • reason for , cause of • 森林大火是由于烟头造成的 • the reason for this forest fire is the cigarette • the cause of this forest fire is cigarette. • 心脏病是他死亡的主要原因 • Heart diease is the main cause of his death • Heart diease is the main reason for his death
• • • • 破裂的杯子 a broken cup 破碎的窗户 a broken window
• cigarette ends烟头
thorw away 扔掉
• • • • throw to 向。。。扔去，扔给某人 the girl throw his necklace to me throw at 向。。砸过去，对准某物砸去 The boy threw a stone at the window
一、现在完成时表示影响
• He has left the city. 他已离开这个城市。(结果： 他不在这个城市。) • Someone has broken the window. 有人把窗户 打破了。(结果：窗户仍破着。) • I have lost my pen. 我把钢笔丢了。(结果：我现 在无钢笔用。)
accidentally 意外地，偶然地 ADV
• • • • • • • • • • accident 事故，意外 交通事故 car accident road accident traffic accident 偶然地 by chance by accident accidentally 我偶然发现了个山洞
新概念二第53课课件
accidentally (adv.) 偶然地，意外地
accident n. (交通)事故；意外 accidental adj. 意外的；偶然的
The explanation was simple but very unusual.
解释很简单，却异乎寻常。
explanation (n.) 解释
explain (v.) 解释
他向我解释这次事故。
He explained the accident to me.
The snake wound itself round the wires.
remains n. 残骸，尸体 the remains of a snake
蛇的残骸 n. 遗址；遗迹
the remains of Yuanmingyuan
That is the _r_e__a_s_o__n_ why he does not tell you the truth.
cause of reason for/to do
That’s the_r_e_a_s_o_n___why +句子
A firemen accidentally discovered the cause. =A firemen discovered the cause by accident.
Broken glass
Cigarette ends
Heat wave
Dry leaves
Look, think and answer.
What are the firemen doing?
图片复制到这里
Look, think and answer.
What caused the fire?
图片复制到这里
accident n. (交通)事故；意外 accidental adj. 意外的；偶然的
The explanation was simple but very unusual.
解释很简单，却异乎寻常。
explanation (n.) 解释
explain (v.) 解释
他向我解释这次事故。
He explained the accident to me.
The snake wound itself round the wires.
remains n. 残骸，尸体 the remains of a snake
蛇的残骸 n. 遗址；遗迹
the remains of Yuanmingyuan
That is the _r_e__a_s_o__n_ why he does not tell you the truth.
cause of reason for/to do
That’s the_r_e_a_s_o_n___why +句子
A firemen accidentally discovered the cause. =A firemen discovered the cause by accident.
Broken glass
Cigarette ends
Heat wave
Dry leaves
Look, think and answer.
What are the firemen doing?
图片复制到这里
Look, think and answer.
What caused the fire?
图片复制到这里
新概念第二册第53课(共24张PPT)
❖ 我肯定她会赢。
❖ 她一定会成功。
5. wind [waind] v. 缠绕,蜿蜒
( wound [waund], wound [waund]) The stream wound its way across the field.
那条小溪弯弯曲曲穿过田野。（L27）
She wound her way through the crowds.
glass or cigarette ends.
People carelessly throw away cigarette ends.
4.examine [ig'zæ min] v. 检查,调查,考试
The doctor examined her carefully. 医生仔细检查了她的身体。
老鹰抓住小鸡飞走了。
Let’s listen to an interesting story
The forest fire
Flash of lesson 53
Page 255
1. Put out 扑灭
❖ The boys felt tired so they put out the fire and crept into their tent. （L27:A wet night 雨夜）
Lesson 53 Hot snake 触电的蛇
用括号中的词语的适当形式填空：
1. I ____ (read) this book five times, but it is so interesting that I ______ (read) it all afternoon.
2. 2.This is the most interesting film I ___ ever __(see)
❖ 她一定会成功。
5. wind [waind] v. 缠绕,蜿蜒
( wound [waund], wound [waund]) The stream wound its way across the field.
那条小溪弯弯曲曲穿过田野。（L27）
She wound her way through the crowds.
glass or cigarette ends.
People carelessly throw away cigarette ends.
4.examine [ig'zæ min] v. 检查,调查,考试
The doctor examined her carefully. 医生仔细检查了她的身体。
老鹰抓住小鸡飞走了。
Let’s listen to an interesting story
The forest fire
Flash of lesson 53
Page 255
1. Put out 扑灭
❖ The boys felt tired so they put out the fire and crept into their tent. （L27:A wet night 雨夜）
Lesson 53 Hot snake 触电的蛇
用括号中的词语的适当形式填空：
1. I ____ (read) this book five times, but it is so interesting that I ______ (read) it all afternoon.
2. 2.This is the most interesting film I ___ ever __(see)
新概念英语第二册课件Lesson53(共19张PPT)
• ★remains n. 尸体，残骸 • dead body • corpse [kɔ:ps] • remain:遗迹；剩余物 • ★wire n. 电线 electric wire • ★volt n. 伏特（电压单位）
• ★power line 电力线
• ★solve v. 解决 • solve the mystery(迷) • solve the problem
• Forest fires are often caused by broken
glass or by cigarette ends which people
carelessly throw away. fires 复数，泛指许多火灾 broken glass碎玻璃 break glass 不可数 a glass 一个玻璃杯 glasses 眼镜
weight.
• find out 查明 • find out the truth
• 宾语从句
• be able to do 能够做某事 can • I am able to paly basketball/speak English.
in this way :以这种方式 只有以这种方式才能解决问题。 Only in this way can you solve this problem.
• ★mystery ['mistəri] n. 谜,神秘
• ★snatch v. 抓住 • snatch up 夺取，抓取
• ★spark n. 火花 • electric spark 电火花
Questions
• 1.What are forest fires often caused by? • 2.What caused the fire?
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Let’s draw some pictures
本课所需掌握词组: put out in this way since then solve the mystery find out snatch up throw away Throw about
Throw at Throw to
随处扔 扔向（有目标性） 扔向（无目标性)
★ wire • n. 金属线，电线 • telephone wires 电话线 • Electric wires 电线 • wireless adj. 无线的 • wireless telegraphy 无线电报 ★volt n. 伏特
• • • • • • •
solve v. 解决,解答,回答 =work out 解决问题 solve a problem 解开谜团 solve a mystery 我们必须解决经济危机。 We must solve the economic crisis.
那人抓起她的钱包就跑。（强调动作很快很猛） drop & fall a. drop 表示 “使落下、使掉落”，是及物动词, 带宾语： He dropped the bag. b. fall 表示 “掉下、跌倒”，是不及物动词，不能带宾 语。 He fell down the stairs and broke his leg.
• • • • • • •
snatch v. 抢,夺,掠取 snatch up 抓起来 贼把她的包抓起来逃跑了。 The thief snatched her bag and ran away. 在他妈妈刚要看那张纸的时候，他把它夺走了。 He snatched the paper as his mother was about to see it.
★fireman • n 消防队员 • hydrant [`haidrənt] • n.消防栓
• • • • •
fire extinguisher 灭火器 Extinguish [ik`stiŋgwiʃ] ＝put out 灭火
★cause The cause of sth • 1）V. 引起 • cause sth : 引起（麻烦）……的起因 • 粗心导致事故 • Carelessness causes accidents. • 骄傲使人失败 The reason for sth • Pride causes failure ……的理由 • cause sb to do sth • 引起某人做某事, 导致某人做某事 • 2）n. 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)
n. 消防队员 v. 引起； n. 原因 v. 检查 adv. 意外地，偶然地 n. 尸体，残骸 v. 缠绕 n. 电线 n. 伏特（电压单位） 电力线 v. 解决 n. 谜 v. 抓住 n. 电火花
★hot adj • 1）热的，炎热的 • Strike while the iron is hot. • 趁热打铁. • hot 炎热的 warm 温暖的 • cool 凉爽的 chilly 寒冷的 • cold 寒冷的,严寒的 • 2）调味品辣的 • 辣椒和芥末是辣的. • Pepper and mustard are hot. • Hot hot hot • 3）强烈的,激烈的,热烈的. • a hot potato 棘手或讨厌的事物或情况
现在完成进行时
构成：have/has been+doing 含义： 1）表示从过去某时开始一直持续到现在的 动作，并且还将持续下去。 2）表示在说话时刻之前到现在正在进行的 动作。
与现在完成时的区别 I have been writing a book. 我一直在写一本书。 （动作还将继续下去） I have written a book. 我已经写了一本书。 （动作已经完成)
2014/8/6 1.L53单词4+1听写；抽两个词组/短语听 写（包括补充的）；从文中任抽一个句子 听写。 2. 将国际音标画成天盘。
be able to 能够 ；be not able to 没有 能够
wind… round
6. This morning, however, a fireman accidentally discovered the cause. 然而今天上午，一个消防队员偶然发现了起火的原因。 Accidentally 表示事情出乎意料地发生，即 “意外地、 偶然地” discover含有偶然发现（某个已经存在的东西）的意思， 在discover前面加上accidentally更加强了“偶然性” 和“意外性”。
★ examine • 1）v. 仔细观察,检查,调查 • 消防队员检查了森林的每一寸土地。 • The firemen examined every inch of the forest. • 2）v. 诊查 • 医生仔细的诊察了病人。 • The doctor examined his patient carefully • 3）v. 考试,测试 • examine students in English • n. exam 考试=examination
10. 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. 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。 When it did so…当它这样做时…… so常用于一些动词之后，代指前面提过的某个动作／某 件事，以免重复： Has Susan got into University? I believe / think so.
★ remains • 1）n. 剩余物,残余物 • 残汤剩饭 • the remains of a meal • 2）n. (古建筑等物)遗址,废墟 • 圆明园遗址 • the remains of Yuanmingyuan • 3）n. 遗体,遗骸 • 毛主席的遗体被保存在水晶棺材里。 • The remains of Chairman Mao were kept well in a crystal coffin.
Lesson 53
Hot snake
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hot fireman cause examine accidentally remains wind wire volt power line solve mystery snatch spark
单词学习 adj. 带电的，通电的
9. A bird had snatched up the snake from the ground and then dropped it on to the wires. 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。 snatch v. 抓 The man snatched her purse and ran.
Comprehension questions
1 Where was there a big forest fire? In California. 2 Have firemen put it out? Yes, they have. 3 What have they been trying to find out since then? How the fire began. 4 What are forest fires often caused by? Broken glass or cigarette ends. 5 What caused this fire?
Comprehension questions
• 1 Where was there a big forest fire? • 2 Have firemen put it out? • 3 What have they been trying to find out since then? • 4 What are forest fires often caused by? • 5 What caused this forest fire?
★ accidentally adv. 意外地,偶然地 • adj. accidental 意外的,偶然的 • 意外死亡 • an accidental death • accident • n. 事故,意外 • 车祸 • a car accident • Accidentally=by chance=by accident • 我偶然间发现了金矿 • I found a gold mine by accident.
Let’s draw more pictures
Hale Waihona Puke 国际音标分类：英语中共有48个音标，元音20个，辅音28个 。 前元音 /i:/, /ɪ/, /e/, /æ / 单元音 中元音 /ɜ:/, /ǝ/, /ʌ/
元音
｛ ｛
摩擦音
后元音
/u:/, /ʊ/, /ɔ:/, /ɒ/, /ɑ:/
双元音 /eɪ/, /aɪ/, /ɔɪ/, /ǝʊ/, /aʊ/, /ɪǝ/, /eǝ/, /ʊǝ/ 爆破音 / p/, /b/, /t/, /d/, /k/, /g/
辅音
/f/, /v/, /∫/, /3 /, /θ /,/δ /, /s/, /z/, /h/, /r/ , /tʃ/, /d3/, /tr/, /dr/ ,/ts/, /dz/
鼻音 /m/, /n/, /ŋ/
舌边音 /l/ 半元音 /w/, /j/
Digest the key points and do the exercises