新概念英语二Lesson21——Mad or not课件(共19张PPT)
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| 名称 | 新概念英语二Lesson21——Mad or not课件(共19张PPT) |  | |
| 格式 | pptx | ||
| 文件大小 | 5.7MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 新概念英语 | ||
| 科目 | 英语 | ||
| 更新时间 | 2024-02-10 20:58:23 | ||
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(共19张PPT)
Lesson 21
Mad or not
decibel
['des bel]
20-30db
70db
90db
110db
125db
130db
139db
190db
190分贝 导致死亡
140分贝 欧盟界定的导致听力完全损害的最高临界点
139分贝 世界杯球迷的呐喊声
130分贝 火箭发射的声音
125分贝 喷气式飞机起飞的声音
120分贝 在这种环境下呆超过一分钟即会产生暂时耳聋
110分贝 螺旋浆飞机起飞声音、摇滚音乐会的声音
105分贝 永久损害听觉
100分贝 气压钻机声音、压缩铁锤捶打重物的声音
90 分贝 嘈杂酒吧环境声音、电动锯锯木头的声音
85 分贝 及以下不会破坏耳蜗内的细胞
80 分贝 嘈杂的办公室、高速公路上的声音
75 分贝 人体耳朵舒适度上限
70 分贝 街道环境声音
50 分贝 正常交谈声音
20 分贝 窃窃私语
decibel
['des bel]
New Words of L21
mad [m d] adj.发疯的
reason ['ri z( )n] n.理由
sum [s m] n.量
determined [d 't m nd] adj.下定决心的
Summary Writing（L21）
Is the writer slowly going mad or not
The writer is slowly going mad.
Where does he live
He lives near an airport.
What can be heard night and day
Passing planes can be heard night and day.
Have most of his neighbours left their homes or not
Most of his neighbours have left their homes.
Summary Writing（L21）
Has he been offered money to leave or not
He has been offered money to leave.
What is he determined to do
He determined to stay here.
What does everyone say
Everyone says he must be mad.
Are they probably right or wrong
They are probably right.
Mad or not
1.Aeroplanes are slowly driving me mad. mad=crazy
2.I live near an airport and passing planes can be heard night and day.
3.The airport was built years ago, but for some reason it could not be used then.
4.Last year, however, it came into use.
开始启用.
词性转换
reason=cause
Mad or not
5.Over a hundred people must have been driven away from their homes by the noise.
6.I am one of the few people left.
7.Sometimes I think this house will be knocked down by a passing plane.
home有感彩，house没有
Mad or not
8.I have been offered a large sum of money to go away，but I am determined to stay here.
sum=amount
同义词：give/provide
offer/give sb sth（提供某人某物）offer/give sth to sb（提供某事给某人）
provide sb with sth/provide sth for sb.
1.一般现在时的被动语态： am/is/are +V过分
2.一般过去时的被动语态：was/were +V过分
3.一般将来时的被动语态：will be + V过去
4.现在进行时的被动语态：am/is/are +being +V过分
5.过去进行时的被动语态：was/were +being +V过分
6.现在完成时的被动语态：have/has +been + V过分
7.过去完成时的被动语态：had been + V 过分
8.过去将来时的被动语态：would be + V过去
9.情态动词的被动语态： must/should +be + V过分
Special Difficulties
Thank You
Lesson 21
Mad or not
decibel
['des bel]
20-30db
70db
90db
110db
125db
130db
139db
190db
190分贝 导致死亡
140分贝 欧盟界定的导致听力完全损害的最高临界点
139分贝 世界杯球迷的呐喊声
130分贝 火箭发射的声音
125分贝 喷气式飞机起飞的声音
120分贝 在这种环境下呆超过一分钟即会产生暂时耳聋
110分贝 螺旋浆飞机起飞声音、摇滚音乐会的声音
105分贝 永久损害听觉
100分贝 气压钻机声音、压缩铁锤捶打重物的声音
90 分贝 嘈杂酒吧环境声音、电动锯锯木头的声音
85 分贝 及以下不会破坏耳蜗内的细胞
80 分贝 嘈杂的办公室、高速公路上的声音
75 分贝 人体耳朵舒适度上限
70 分贝 街道环境声音
50 分贝 正常交谈声音
20 分贝 窃窃私语
decibel
['des bel]
New Words of L21
mad [m d] adj.发疯的
reason ['ri z( )n] n.理由
sum [s m] n.量
determined [d 't m nd] adj.下定决心的
Summary Writing（L21）
Is the writer slowly going mad or not
The writer is slowly going mad.
Where does he live
He lives near an airport.
What can be heard night and day
Passing planes can be heard night and day.
Have most of his neighbours left their homes or not
Most of his neighbours have left their homes.
Summary Writing（L21）
Has he been offered money to leave or not
He has been offered money to leave.
What is he determined to do
He determined to stay here.
What does everyone say
Everyone says he must be mad.
Are they probably right or wrong
They are probably right.
Mad or not
1.Aeroplanes are slowly driving me mad. mad=crazy
2.I live near an airport and passing planes can be heard night and day.
3.The airport was built years ago, but for some reason it could not be used then.
4.Last year, however, it came into use.
开始启用.
词性转换
reason=cause
Mad or not
5.Over a hundred people must have been driven away from their homes by the noise.
6.I am one of the few people left.
7.Sometimes I think this house will be knocked down by a passing plane.
home有感彩，house没有
Mad or not
8.I have been offered a large sum of money to go away，but I am determined to stay here.
sum=amount
同义词：give/provide
offer/give sb sth（提供某人某物）offer/give sth to sb（提供某事给某人）
provide sb with sth/provide sth for sb.
1.一般现在时的被动语态： am/is/are +V过分
2.一般过去时的被动语态：was/were +V过分
3.一般将来时的被动语态：will be + V过去
4.现在进行时的被动语态：am/is/are +being +V过分
5.过去进行时的被动语态：was/were +being +V过分
6.现在完成时的被动语态：have/has +been + V过分
7.过去完成时的被动语态：had been + V 过分
8.过去将来时的被动语态：would be + V过去
9.情态动词的被动语态： must/should +be + V过分
Special Difficulties
Thank You
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