Unit18 The United States of America知識(shí)點(diǎn)總復(fù)習(xí)教案
29. they killed the bison, cut off the skins and left the bodies behind to rot. 他們把野牛殺了，剝?nèi)ヅＦぃ瑨仐壥w，任其腐爛。(p.47 integrating skills reading 第四段 第4行)
★leave...behind的兩種用法
▲leave...behind作“留下”解釋?zhuān)菆?zhí)行者有意識(shí)的動(dòng)作。如: ① the men had all run away leaving only old women and children. 男人們都跑了，只留下年老的婦女和孩子。② i shall leave you behind if you are not quick. 如果你不快點(diǎn)，我就把你丟在后面不管了。③ in their withdrawal，much of the heavy equipment had to be left behind. 他們?cè)诔吠藭r(shí)不得不留下許多笨重的東西。 ④ his wife left behind two little girls. 他妻子死后留下兩個(gè)小女孩。⑤ you'll have to put in some extra work at night if you don't want to get left behind. 如果你不想被別人超過(guò)，就必須利用晚上時(shí)間做更多的工作。
▲leave behind還有“遺忘” “遺留”之意，為執(zhí)行者無(wú)意識(shí)的動(dòng)作。如: ① 0h，dear! the travelling bag has been left behind. 唉呀!旅行袋忘了拿了。② it left behind a long train of problems and difficulties.這遺留下一連串問(wèn)題和困難。③ i have left my keys behind at the office. 我把鑰匙忘在辦公室里了。
30. with fewer bison, grass shoots were not eaten, … 因?yàn)橐芭Ｉ倭耍鄄輿](méi)有牛吃，… (p.47 integrating skills reading 最后一段 第1行) ▲ with
(1) 表原因 my hand were blue with cold. 我的雙手凍得發(fā)紫。the captain was beef-red with anger. 上尉氣得滿(mǎn)臉通紅。the boy trembled with fear. 這男孩害怕得
發(fā)抖。
(2) (表示方式等)……地，……著，以…… you must handle this parcel with care. 這個(gè)包裹你須小心輕放。he speaks english with ease and fluency. 她說(shuō)英語(yǔ)不費(fèi)力而且流利。she performed the operation with great skill.她極為熟練地給病人施行手術(shù)。
(3) (表示工具，手段等)用 did you write with a pen or pencil? 你用鋼筆寫(xiě)還是用鉛筆寫(xiě)? it’s best to draw lines with a ruler. 用尺子劃線(xiàn)最合適。
31. … which as a result became less good for growing plants. 這就越來(lái)越不適合植物的生長(zhǎng)。(p. 47 最后一段第4行)
★as a result和as a result of
▲as a result意為“因此”“所以”，后面的內(nèi)容表示結(jié)果，而as a result of則意為“因?yàn)?由于)……”，of后面的內(nèi)容表示原因；請(qǐng)對(duì)照下列例句，辨析這兩個(gè)詞組之間的差別。① my car broke down and as a result, i was unable to get there. 我的車(chē)出了故障，因此我沒(méi)能到那里去。② the flight was delayed as a result of fog. 因有霧，該航班誤點(diǎn)。③ we went on walking in spite of the rain, as a result, we all got a bad cold. 我們不顧下雨繼續(xù)往前走，結(jié)果都得了重感冒。④ he was late as a result of the traffic jam.由于交通阻塞，他遲到了。
【注】as a result后面常接一個(gè)分句，as a result of常接名詞、代詞或動(dòng)名詞。