享受做试验的充分自由

Unit4

WildlifeandgardenrosesLead-in1.WhatwasDarwinfamousfor?

Hewasfamousforwritingabookcalled“ontheoriginofspecies”.2.Whatisthemainideaofthebook?Hesaidthatalllivingplantsandanimalsgraduallydeveloped.Fastreading

Howmanypartscanthepassagebedividedintoaccordingtothemeaningofthepassage?Summarizethemainideaofeachpart.PartI--Para1-3:PartII--Para4-5:

PartIII--Para6:PartIV--Pa7:Darwinandhisresearch.Mendelandhisexperiment.Turessonandhisstudytheimportanceandsignificanceoftheresearchofthethree.CarefulreadingReadthepassagecarefullyanddothecomprehensionontheexerciseforeachlesson.Darwinobservedthatthebirdswith__wouldeat___.

A.smallbeaks;hardseedsB.broadbeaks；hardseeds

C.hardbeaks；hardseedsD.broadbeaks；softseeds2.Darwinjoinedthescientificexpeditionon___．

A.EndeavourB.TahitiC.theBeagleD.space3.WhatwasthepurposeofMendel’sexperiments?Hispurposewasbasedonhislovenature.Hispurposewastosupporttheideasconcerningtheinfluenceofenvironmentuponplants.Hispurposewasbasedontheinfluenceofgeneticsuponplants.4.Thebeliefofthescientistsofthenineteenthcenturywas_____Theinfluenceoftheenvironmentledtothedevelopmentofnewspecies.Theinfluenceoftheenvironmenthadnoeffectonnewspecies.differentvarietiesofspeciesdependedondifferentenvironmentsGeneticsledtothedevelopmentofnewspecies.5.TheresearchbyDarwin,MendelandTuressonshowsthat___.

A.geneticsismoreimportantthantheenvironmenttoplants

Bgeneticsislessimportantthantheenvironmenttoplants

C.bothgeneticsandtheenvironmentareimportanttoplants

D.neithergeneticsnortheenvironmentisimportanttoplantsUsefulphrasesinthispassage:1.享受做试验的充分自由Enjoyallthefreedomtoexperiment2.值得特别重视Deservespecialattention3.明显与…相关showaclearrelationshipwith4.有关Berelatedto5.用花朵和豌豆实验Conducthisexperimentswithflowersandpeas6.代代相传Passonfromonegenerationtothenext7.导致遗传学的产生Givebirthtothescienceofgenetics8.形成理念Formthebelief9.研究玫瑰的变异情况Studymanyvarietiesofgardenroses10.重新认识环境对物种的重要性Bringtheimportanceoftheenvironmentonspicesinview11.大叶Broadleaves12.外形改变Changeone’sappearance13.适应新环境Adapttothenewenvironment14.靠近地表生长GrowclosetothegroundLanguagepoints1.(P1.L1)…toexperimentanddowhateverheliked.

everythinghelikedallheliked.2.(P1.L4)Darwin’sobservationsonthatvoyageledhimtowritehisfamousbook…句中whatever引导名词性从句,在句中作宾语,它还可以作主语表语等.nomatterwhat只能用在状语从句中leadto是一个活跃的词组，意为“通向”、“导致”、“使得”等等，其常见的结构是leadtosth.或leadsb.to

sth.或leadsb.todosth.。如：Allroads______Rome.条条道路通罗马。Thereisonlyonepath________thecastle.只有一条小路通往城堡。Hardworkandproperwayswill______________success.勤奋的工作和正确的方法会使你成功。

What______________________?是什么使得你相信他的?leadtoleadingtoleadyoutoledyoutobelievehim3.(P2.L2)…anddeservedspecialattention.deserve

vt.这个词字面意思是“值得”、“该受到”，可褒可贬。①Ithinkyou‘replayingwithfire.Youdeserveit!你是玩火自焚，真是自作自受！②Howdareyoudothistome?Youdeserveakickintheass!你竟敢这样对我？找打啊？③Suchalittleboyhastoworktosupporthisfamily.Itdeservessympathy.Ifyoudowrong,youdeservepunishment.Ifyoudowrong,youdeserve

punishing.

Ifyoudowrong,youdeserve

tobepunished.类似的词还有：need;want;require4.(P.2,L1)Itwas…thatgivehimthekeytohisnewtheory.使他获得创建新理论的要领.

thekeytosth./doingsth.…的关键,…的答案①Thisisthekeytotheimprovementoftheirlivingconditions.

②Thisisthekeytoworldpeace.这是他们生活条件得以改善的关键.这是和平的关键theanswerto_____________/theentranceto__________thesolutionto____________thelimitto______________theguideto____________theresponseto____________theattitudeto_____________…的答案…的入口…的解法…的极限…的指南…的响应…的态度6.(P5.L4)Itwouldtakeanextgenerationofscientiststobringtheimportanceoftheenvironmentonspeciesbackinview.①Therewasnotahouseinview.（看见）②Hewantstofindwork,buthehasnothingparticularinview.(考虑)…但他没有具体的目标。bringsthbackinview重现在视野comeinview出现在视野inview(of)

可以看见；在考虑之中；计划好的③

Inviewof

hisyouth,thepolicehavedecidednottopresscharges.(考虑到；由于；鉴于)7.(P.7,L3)suchassoilconditions,isofequalimportancetotheoutputofcrop.

对粮食农作物产量具有同样重要的意义.beof+抽象名词=be+该词的形容词beofimportance=beimportantbeofvalue=bevaluablebeof+thesize/age/weight/kind/heightetc.这类抽象名词没有相应的形容词.Theyareofthesameagebutofdifferentheight.他们同龄但不一样高.Writing达尔文年轻时想干什么就干什么。他对物理化学和植物学有着特别的爱好。22岁时，他就应邀参加了“小猎犬号