2023學(xué)年完整公開課版Unit2CloningLanguagepoints教學(xué)

Unit2CloningLanguagepoints

1.Thishappensinplantswhengardenerstakecuttingsfromgrowingplantstomakenewones,…h(huán)appenvi.occurbychance;takeplace(偶然地）發(fā)生；出現(xiàn)

happentodo…h(huán)appentosb.Ithappenedthat…h(huán)appeningn.事件；偶然發(fā)生的事（常用復(fù)數(shù)）當(dāng)園藝工人割草而使之長出新的植物時(shí)，就會發(fā)生這種情況，....碰巧（某人）發(fā)生什么事了碰巧辨析：happen,occur,takeplace與comeabout四詞都有“發(fā)生”之意，但有區(qū)別。

happen

是一般用語，詞義較廣，強(qiáng)調(diào)事情發(fā)生的偶然性;

occur用法較正式，既可以指自然發(fā)生，也可以指有意安排。takeplace一般指有計(jì)劃，按事先安排的進(jìn)行的含義。comeabout

往往注重事情發(fā)生的原因，常與how連用。注：以上四組詞均為不及物動詞，無被動語態(tài)。Usetheabovewordstofillthefollowingblanks:1)Whendidtheexplosion_______?2)Importantelections_______thisfall?3)Theconcertwill___________nextSunday.4)Howdidthequarrel___________?occurtakeplacecomeabouthappen2.Thenucleusofthiscellcontainsallthegenesneededtoproduceanewsheep.這個(gè)細(xì)胞得細(xì)胞核含有生產(chǎn)一只新的綿羊的必需的基因。neededtoproduceanewsheep為過去分詞短語作后置定語，修飾其前面的名詞genes,構(gòu)成動賓搭配關(guān)系。containv.haveorholdwithinitself飽含，里面有辨析：contain與include

contain“包含，含有”，側(cè)重于包含的內(nèi)容或成分，“里面裝有”；

include“包括”，側(cè)重范圍或整體。Eg:1)Whisky________alargepercentageofalcohol.2)Thebook________fortymaps,________threeofGreatBritain.containscontainsincluding3.ThenucleusfromsheepBandtheeggcellfromsheepAarejoinedusingelectricity.Usingelectricity為現(xiàn)在分詞短語作方式狀語。聯(lián)手，攜手參加活動和某人一起做事參軍，連起來從綿羊B中取出得細(xì)胞核與從綿羊A中取出得卵細(xì)胞用電流使之結(jié)合。Joinhandsjoininsth./doingsth

joinsb.insth.joinup辨析：takepartin,join,joinin與attendtakepartin

指參加某項(xiàng)活動，并以積極的態(tài)度在所參加的活動中起作用；join“加入”團(tuán)體或組織；joinin

指參加活動和游戲；joinsb.Insth.

和某人一起做某事；attend參加會議(聽演講、聽音樂、參加婚禮）

4.castdown使沮喪發(fā)現(xiàn)突破性克隆動物的命運(yùn)使他沮喪。Hefeltcastdownwhenhediscoveredthefateofthebreakthroughclone.不要這么沮喪，打起精神來！Don’tbesocastdown.Justkeepupyourspirits.※castdown有兩個(gè)義項(xiàng)：毀掉；使沮喪，另外，castaway丟棄，castoff放棄；丟棄，

castout趕走5.infavorof贊成；有利于比分是80比78，客隊(duì)獲勝。Thescorewas80to78infavouroftheguestteam.今天的兌換率對我們有利。Theexchangerateisinourfavourtoday.infavourof

贊成，支持，與against相對。6.beboundto注定；有義務(wù)做明天天氣一定會變好。Theweatherisboundtogetbettertomorrow.發(fā)現(xiàn)突破性克隆動物的命運(yùn)使他沮喪。我覺得有必要對你說，你酒喝得太多了。Ifeelboundtotellyouthatyouaredrinkingtoomuch.beboundtodosth.有兩個(gè)義項(xiàng)：注定，一定會法律責(zé)任或義務(wù)做某事。7.payoff（事業(yè)、計(jì)劃）成功他付清全體船員的工資并將他們解雇。Hepaidoffthecrewoftheship.最終他還清了所有的債務(wù)。Intheendhepaidoffallhisdebts.payoff

：成功；付清薪水并解雇；償還（債務(wù)等）。Finishthefollowingexercises:Usetheproperformsofthefollowingphrasestofillintheblanks:castdownpayoffinfavouroffromtimetotimebeboundtoShewas___________byherhusband’sdeath.Myunclecomestohavedinnerwithus________________.castdownfromtimetotime3.Hehasbeenworkingsohardathislessons,sohe____________pa