Unit 20 Archaeology教案

5. accompany[ ′k mp ni]vt. ①walk or travel with sb. as a companion伴隨某人；陪伴 eg:
i must ask you to accompany me to the police station.
我得要求你陪我去一趟警察局。
②be present or occur with sth.與某物同時(shí)存在或發(fā)生 eg:
strong winds accompanied by heavy rain.狂風(fēng)夾著暴雨。
③play an accompaniment for sb.為某人伴奏 eg:
she accompanied the singer on the piano.她彈鋼琴為那位歌手伴奏。
6. precious[′pre s]adj. ①of great value 貴重的；寶貴的 eg:
nothing is precious than time.世上最寶貴的莫過于光陰。
precious memories珍貴的回憶
②dearly loved; highly valued可愛的；珍貴的 eg:
every child is precious to its parents.每個(gè)小孩子都是父母的寶貝。
7. dig up①break up (soil, etc.) by digging 挖掘；墾地 eg:
he is digging up land for a new garden.他為建一個(gè)新花園而墾地。
②remove from the ground by digging掘出，掘到 eg:
an old greek statue was dug up here last month.
上個(gè)月在這挖出一尊古希臘雕像。
8. have a history of…有……年的歷史 eg:
china has a history of over 5,000 years.中國有5，000多年的歷史。
9. cover an area of…占地 eg:
our school covers an area of 100 mu.我們學(xué)校占地100畝。
二、語言點(diǎn)講解
1. since then, archaeologists have found more than a thousand cultural relics, including gold, jade, bronze and stone objects as well as a large quantity of ivory that must have belonged to at least 500 elephants.自從那時(shí)，考古學(xué)家們已經(jīng)發(fā)現(xiàn)了1，000多件文化遺物，除了大量的象牙外，這些象牙肯定屬于至少500頭大象的，還包括金、玉、銅和石器。
（1）此句是復(fù)合句，that must have belonged to at least 500 elephants在句中做定語修飾ivory。
（2）must have done肯定已經(jīng)……，是對過去的事情的一種肯定推測，它的否定或疑問形式用can代替must。 eg:
he must have been to shanghai.他肯定去上海了。
you must have seen the film last night.你昨天晚上肯定看這部電影了。
you can’t have seen the film last night.你昨天晚上不可能看這部電影。
注：含must have done的句子的反意疑問句，分兩種情況，若前句強(qiáng)調(diào)對過去情況的推測（一般有過去時(shí)間狀語），疑問部分的謂語動(dòng)詞用“didn’t+主語”；若前句強(qiáng)調(diào)動(dòng)作的完成，疑問部分的謂語動(dòng)詞用“haven’t (hasn’t)+主語”。 eg:
you must have seen the film, haven’t you?
你肯定看過這部電影，是不是？
he must have met her yesterday, didn’t he?
他昨天肯定見過他，是不是？
2. it was four o’clock in the afternoon when he and his grandpa reached the museum in guanghan, where an official warmly received them.當(dāng)他和爺爺?shù)竭_(dá)廣漢博物館時(shí)，時(shí)間已是下午4點(diǎn)了，在那兒一位政府官員熱情接待了他們。此句是主從復(fù)合句，包含一個(gè)主句和兩個(gè)從句：when he…in guanghan是由when引出的時(shí)間狀語從句，where an official warmly received them是由where引出的非限制性定語從句修飾先行詞guanghan，相當(dāng)于in which。 eg: