外研版高中英語必修三《Disaster and hope》SectionA PPT課件，共41頁。
典句欣賞
Recordings from seismographs tell scientists when and where an earthquake took place.
譯文:地震儀的記錄告訴科學(xué)家地震發(fā)生的時(shí)間和地點(diǎn)。
分析:該句子中Recordings為主語,from seismographs 為介詞短語作后置定語,修飾Recordings;tell為謂語,scientists作tell的間接賓語;when and where an earthquake took place為賓語從句。
重點(diǎn)詞匯
1.pick up 拿起;卷起;掀起
【課文原句】Picking up a free newspaper at the Tube station,I see the title “Hot! Hot! Hot”.
在地鐵站撿到一份免費(fèi)報(bào)紙,我看到標(biāo)題是“熱!熱!很熱”。
【詞匯精講】pick up在該句子中表示“拿起”,同時(shí),它還有“拾起;接收(信號(hào));(偶然)學(xué)會(huì);整理;接載;情況好轉(zhuǎn)”等含義。
He picked up some French words while living with a Frenchman.
他和一個(gè)法國人住在一起時(shí)學(xué)會(huì)了一些法語單詞。
The school bus picks up the children three times every day.
校車每天接送孩子們?nèi)巍?/p>
The equipment picked up the signal from the satellite.
設(shè)備接收到衛(wèi)星發(fā)出的信號(hào)。
2.average adj.平均的;普通的;正(平)常的
【課文原句】The average high temperature in July is only 22 degrees,so over 30 is not usual for London.7月份的平均高溫只有22度,因此倫敦的氣溫通常不會(huì)超過30度。
【詞匯精講】average在該句子中為形容詞,表示“平均的”。它還有名詞的詞性,表示“平均數(shù);平均水平;一般水準(zhǔn)”;還可以作動(dòng)詞,表示“平均為;計(jì)算出……的平均數(shù)”。
Last year was the warmest year on record,with global temperature 0.68 ℃ above the average.
去年是有記錄以來最熱的一年,比全球平均氣溫高了0.68度。
重點(diǎn)句式
Looking through my newspaper,I’m shocked by photos showing that a hurricane in Asia has destroyed a town.
瀏覽報(bào)紙時(shí)我被一些照片所震驚,照片上顯示亞洲的一場颶風(fēng)已經(jīng)毀壞了一座城鎮(zhèn)。
【句式剖析】looking through my newspaper 為動(dòng)詞-ing形式作伴隨狀語,showing 為動(dòng)詞-ing形式作photos 的后置定語。
The film will be shown this Sunday afternoon,lasting 2 hours,from 4:00 to 6:00.
這部影片將在本周日下午放映,持續(xù)兩個(gè)小時(shí),從4:00到6:00。
The hospital has recently obtained new medical equipment,allowing more patients to be treated.
近期這個(gè)醫(yī)院得到了新的醫(yī)療設(shè)備,使得更多的病人得到治療。
【句式拓展】
(1)動(dòng)詞-ing形式(短語)作狀語可以表示時(shí)間、原因、結(jié)果、方式或伴隨情況等,可相當(dāng)于一個(gè)狀語從句。
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.
發(fā)現(xiàn)這門課很難,她決定調(diào)低一級(jí)。
(2)動(dòng)詞-ing形式(短語)作狀語,含有一般式(doing),完成式(having done)以及完成被動(dòng)式(having been done)。如果表示否定,not放在動(dòng)詞-ing形式前面。
I sat at the back,never daring to speak.
我坐在后面,從不敢吭聲。
Having written down our names and addresses,the policeman let us go.
那警察把我們的姓名和地址記下之后就讓我們走了。
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