《Disaster and hope》SectionA PPT课件

外研版高中英语必修三《Disaster and hope》SectionA PPT课件，共41页。

典句欣赏

Recordings from seismographs tell scientists when and where an earthquake took place.

译文:地震仪的记录告诉科学家地震发生的时间和地点。

分析:该句子中Recordings为主语,from seismographs 为介词短语作后置定语,修饰Recordings;tell为谓语,scientists作tell的间接宾语;when and where an earthquake took place为宾语从句。

重点词汇

1.pick up 拿起;卷起;掀起

【课文原句】Picking up a free newspaper at the Tube station,I see the title “Hot! Hot! Hot”.

在地铁站捡到一份免费报纸,我看到标题是“热!热!很热”。

【词汇精讲】pick up在该句子中表示“拿起”,同时,它还有“拾起;接收(信号);(偶然)学会;整理;接载;情况好转”等含义。

He picked up some French words while living with a Frenchman.

他和一个法国人住在一起时学会了一些法语单词。

The school bus picks up the children three times every day.

校车每天接送孩子们三次。

The equipment picked up the signal from the satellite.

设备接收到卫星发出的信号。

2.average adj.平均的;普通的;正(平)常的

【课文原句】The average high temperature in July is only 22 degrees,so over 30 is not usual for London.7月份的平均高温只有22度,因此伦敦的气温通常不会超过30度。

【词汇精讲】average在该句子中为形容词,表示“平均的”。它还有名词的词性,表示“平均数;平均水平;一般水准”;还可以作动词,表示“平均为;计算出……的平均数”。

Last year was the warmest year on record,with global temperature 0.68 ℃ above the average.

去年是有记录以来最热的一年,比全球平均气温高了0.68度。

重点句式

Looking through my newspaper,I’m shocked by photos showing that a hurricane in Asia has destroyed a town.

浏览报纸时我被一些照片所震惊,照片上显示亚洲的一场飓风已经毁坏了一座城镇。

【句式剖析】looking through my newspaper 为动词-ing形式作伴随状语,showing 为动词-ing形式作photos 的后置定语。

The film will be shown this Sunday afternoon,lasting 2 hours,from 4:00 to 6:00.

这部影片将在本周日下午放映,持续两个小时,从4:00到6:00。

The hospital has recently obtained new medical equipment,allowing more patients to be treated.

近期这个医院得到了新的医疗设备,使得更多的病人得到治疗。

【句式拓展】

(1)动词-ing形式(短语)作状语可以表示时间、原因、结果、方式或伴随情况等,可相当于一个状语从句。

Finding the course very difficult,she decided to move to a lower level.=As/Because she found the course very difficult,she decided to move to a lower level.

发现这门课很难,她决定调低一级。

(2)动词-ing形式(短语)作状语,含有一般式(doing),完成式(having done)以及完成被动式(having been done)。如果表示否定,not放在动词-ing形式前面。

I sat at the back,never daring to speak.

我坐在后面,从不敢吭声。

Having written down our names and addresses,the policeman let us go.

那警察把我们的姓名和地址记下之后就让我们走了。

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