高中英语-选修九-unit-4课件.ppt--(课件中不含音视频)
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1、选修九选修九Unit 4Exploring plants 1.课前自测课前自测2.课堂学案课堂学案课前自测课前自测 Key:1.botanist;botanical2.irrigate;irrigation;irrigator3.restrict;restriction;restrictive4.fluency;fluent;fluently5.pollinate;pollinator;pollination6.fragrant;fragrantly;fragranceKey:7.lower;low8.evolve;evolution;evolutionary9.tight;tightly;t
2、ighten10.contain;container;containedKey:1.date back to2.in3.借机进行植物探索活动4.把他们所见到的植物记录下来5.alive6.使自己汉语讲得流利7.重视自然科学的研究8.appeals to9.attached to10.增加生存的机会Key:1.bringing back plants2.known as3.Keeping plants alive4.increasing the chances Key:1.their2.is rewarded3.attached4.and5.increasing6.depends7.as8.bu
3、tterflies9.with10.to guide 阅读下面材料,在空白处填入适当的内容(1个单词)或括号内单词的正确形式。Over time,many flowering plants and _1_(they)animal pollinators have evolved together.The plant needs the animal to pollinate it and the animal _2_(reward)with food called nectar when it visits the flowers.Pollen becomes _3_(attach)to th
4、e animal during its visit to a flower _4_ is then passed on to another plants blossom on its next visit.So pollination takes place,therefore _5_(increase)the chances of the survival of the plant species.The type of pollinator _6_(depend)on the characteristics of the flower such _7_ its colour,shape,
5、size and smell.For example,yellow flowers attract bees,while red flowers attract _8_(butterfly).The nectar in some flowers can only be reached by a bird _9_ a long bill or a long-tongued moth or butterfly.Flowers that attract bees often have a special pattern _10_(guide)the bees to the nectar inside
6、.课堂学案课堂学案1.conflict vi.冲突;抵触;争执冲突;抵触;争执 n.冲突;矛盾;斗争冲突;矛盾;斗争 1.Brave young men took the opportunity of going on botanical expeditions,often facing many dangers including disease,near-starvation,severe environments and conflicts with the local people.勇敢的年轻人借机进行植物探索活动,他们常常面临许多危险,如疾病、饥饿、恶劣的环境及同当地居民的冲突。2.
7、Mary often comes into conflict with her sister.玛丽经常和她妹妹产生矛盾。3.Your words conflict with the police evidence.你的话和警方的证据相矛盾。【词块助记词块助记】avoid a conflict 避免冲突resolve a conflict 解决争端political conflict 政治分歧conflict of interest(s)利益/利害冲突(in)conflict with 与有分歧/冲突come into conflict with 与发生冲突/产生矛盾/战斗conflict am
8、ong/between 之间的矛盾冲突【构词】conflicting adj.冲突的;相矛盾的;不一致的 1.John often comes into a conflict with his boss.2.She found _(she)in conflict with her parents over her future career.Key:1.去掉a2.herself 2.scale n.刻度;等级;规模;音阶;量程;磅秤刻度;等级;规模;音阶;量程;磅秤 vt.&vi.衡量;攀登;依比例决定衡量;攀登;依比例决定 1.(2013上海卷)Amusics can only hear t
9、he difference between two notes if they are far apart on the musical scale.这些天生不喜欢听音乐的人只有在两个音符相差较多音阶时才听得出差别所在。2.(2013上海卷)Wood says the design offers a new way to study flight mechanics and control at insect-scale.伍德说该设计为研究飞行器提供了一种全新的方法并能使其规模控制到昆虫一般大小。3.The force of the wind is measured on a standard
10、 scale of 0-12.风力是按0-12级标准等级测量的。4.They are determined to spare no efforts to scale the peaks in science and technology.他们决心全力攀登科技高峰。production scale 生产规模full scale 全尺寸;完全的on a large/small scale 大规模地/小规模地scale up/down 按比例增加/减少【词块助记词块助记】1.In recent years university graduates are stepping into society
11、_ a large scale,_ arouses much concern.2.The company began to scale up its _(operate)in Asia.Key:1.on;which2.operation【词块助记词块助记】3.restriction n.限制;约束限制;约束 1.(2014江苏卷)The biggest restriction on our resources is the number of hours we can devote to something,so we look to maximize the return we get on
12、 our investment of time.我们在利用资源方面的最大限制是在一件事上所能投入的时间有限,因此我们寻求在时间投入上的利益最大化。2.The government has agreed to lift restrictions on press freedom.政府已经同意撤销对新闻自由的限制。import/export restrictions 进口/出口限制credit restriction 信用限额restriction factor 制约因素place/impose a restriction on sth.对实行限制restrictto 把限制/控制在【构词】res
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