1、预习 新知早知道Unit 5 Revealing nature.匹配词义 a单词匹配()1.worldwide An.杀虫剂，农药()2.giant Bn.(古代的)神话()3.myth Cn.传说，传奇(故事)()4.legend Dadj.巨大的，特大的()5.pesticide Eadv.遍及全世界 答案 15 EDBCA b短语匹配()municate with A把和连接起来()2.tiny amounts of B赶跑，使离去()3.drive away C在某种程度上()4.in some ways D与交流()5.link.to E少量的 答案 15 DEBCA.默写单词 1_
2、 n 山羊 2_ n.特征，特性 3_ v.减少 4_ n.根 5_ v.发现，察觉(尤指不易觉察到的事物)goat characteristic decline root detect 6_ v.把联系起来；连接 7_ adj.原始的，低等的 8_ v.责怪，指责；把归咎于 9_ n.厘米 link primitive blame centimetre .语境填空 primitive，detect，characteristic，link，root，centimetre，decline，legend，giant，blame 1The cold weather may account for t
3、he _ in the flow of customers in the shopping mall.decline 2The conditions in the local school were fairly _，without electricity and basic teaching tools.3The airplane crash cast a _ shadow on travellers.4 The ability to make and use tools is one of the basic _ of humans.5Not his teacher but the stu
4、dent himself is to _ for the failure in the exam.primitive giant characteristics blame 6We need to find out the _ of the problem before we solve it.7There are many wonderful _ about this famous hero.8Dogs can _ sounds beyond humans hearing limit.9Sharks in the sea vary in size from just 20 _ to 14 m
5、etres.10Asia and Europe，being two different areas，are _ together by mountains and rivers.root legends detect centimetres linked.语法填空之派生词 1None of us is entirely _(blame)in this matter.2 Im afraid something has been _(primitive)programmed.3Early _(detect)of cancers is very important.4He had a _(root)
6、childhood moving from town to town.blameless primitively detection rootless 1This happens when a plant，say a bean plant，gets attacked by insects.这种交流发生在某种植物，_一棵豆秧，受到昆虫侵害的时候。2Some plants make noises with their roots.有些植物用根_。比如发出响声3A chilli plant can tell if a neighbouring plant is helpful，or unfriend
7、ly.一棵辣椒秧可以_邻近的植物是有益的还是不友好的。分辨出 词语助读 myth n(古代的)神话 legend n传说，传奇(故事)legendary adj.传说中的；非常著名的 as well as 又，和，也(常用于连接两个并列的成分)Alexander the Great 亚历山大大帝 fantasy nU幻想，想象 reveal vt.显示；透露；揭露 reveal the truth/the secret 揭露真相/泄露秘密 chemical n.C化学制品，化学品 adj.化学的 release vt.释放 detect v发现，察觉(尤指不易觉察到的事物)detective
8、nC侦探 drive away 赶跑，使离去 wasp n黄蜂 pesticide n.杀虫剂，农药 root n根 chilli n辣椒 tell the difference between A and B 分辨出 A 与 B 的区别 indicate vt.&vi.表明；显示 indication nC，U显示；表明；标示 link v把联系起来；连接 in some ways 在某种程度上 tell vt.分辨，识别 tell A from B 辨别 A 和 B underground adv.在地下；adj.地下的 fungus n真菌(复数 fungi)fungal adj.真菌的
9、；真菌引起的 21 version n.C型式，版本 22 cybercrime n网络犯罪 原文呈现 The Secret Language of Plants 1Talking plants have long been a thing of myths and legends.Many cultures have stories of talking trees that give advice as well as warnings to people.Alexander the Great and Marco Polo were said to have visited such a
10、 tree in India.1 And in some modern stories，such as the film Avatar，trees can communicate with animals and people.1此处为“主语besaid不定式”句型。2With us long believing that talking plants are fantasy2，new research has revealed something amazing：it appears that plants can communicate after all 3 2画线部分为 with 复合
11、结构，其中 that 引导宾语从句，作believing 的宾语。3本句中的 it 作句子的主语，无实际意义。appears 是系动词，其后的 that 则引导一个表语从句。3It has been known for some time that plants use chemicals to communicate with each other.4 This happens when a plant，say a bean plant，gets attacked by insects.The plant releases tiny amounts of chemicals from the
12、 leaves that are being eaten.This is like a warning，or a call for help：“Im being attacked！”When another bean plant detects the chemicals from its injured neighbour，it starts to release its own，different chemicals.Some of these chemicals drive insects away.Others attract insectsthe wasps！The wasps ki
13、ll the insects that are eating the bean plants.Scientists hope to learn more about this plant warning system，so that we can use it to grow crops without pesticides.4本句中的 it 在句中作形式主语，真正的主语是后面由 that 引导的从句。4More surprisingly，plants also use sound to communicate.People cant hear these sounds，but plants
14、are making them.Some plants make noises with their roots.Corn and chilli plants do this.They also“listen”to the noises from other plants.A chilli plant can tellif a neighbouring plant is helpful，or unfriendly.Some trees make clicking noises when there is not enough water，indicating drought is arrivi
15、ng.5 5此处 when 引导时间状语从句，意为“当时”；indicating.arriving 是现在分词短语作伴随状语。5Most surprisingly of all，plants have an amazing system of communication that can link nearly every plant in a forest.Scientists call this system the“wood wide web”It is in some ways similar to the Internet we use.While the Internet is a
16、 worldwide network of computers linked by cables and satellites 6，the wood wide web is linked underground by fungi.This fungal network links the roots of different plants to each other.Using the wood wide web 7，plants can share information and even food with each other.For example，some pine trees ca
17、n send food to smaller pine trees to help them grow.But just like our own Internet，the wood wide web has its own version21 of“cybercrime22”Plants can steal food from each other，or spread poisons to attack other plants.Perhaps one day scientists will learn how to create a“firewall”to help prevent the
18、se attacks within the wood wide web.6此处 While 为并列连词，表示对比关系，意为“而，然而”。7此处是现在分词短语作方式状语。6Scientists are learning more every day about the secret ways in which plants talk to each other 8Who knows？Maybe one day we will know enough about plant communication to be able to“talk”with them ourselves.8画线部分为“介词
19、关系代词”引导的定语从句；此处介词in 由先行词 ways 的搭配决定。译文参考 植物的秘密语言 1会说话的植物长久以来都存在于神话和传说当中。许多文化里都有会说话的树给人们警告和建议的故事。据说亚历山大大帝和马可波罗曾在印度参观过这样一棵树。在一些现代故事中，像电影阿凡达，树木可以与动物和人交流。2我们长久以来都认为，会说话的植物存在于幻想里，不过新的研究揭示了惊人的发现：植物还是可以进行交流的。3人们对植物使用化学物质相互交流的了解已经有些时日了。这种交流发生在某种植物，比如一棵豆秧，受到昆虫侵害的时候。受侵害的植物从正被啃食的叶子中释放出微量的化学物质，就像是发出警告或呼救：“我被攻击了
20、！”当另一棵豆秧察觉到从它受伤的邻居身上释放出的这些化学物质时，它开始释放自己的不同化学物质。其中有些化学物质能够驱赶昆虫，有些则会吸引昆虫黄蜂！黄蜂会杀死正在吃豆秧的昆虫。科学家希望能够更多地了解这种植物预警系统，这样我们就可以使用这种植物预警系统，在种作物的过程中不再使用杀虫剂。4更令人惊讶的是，植物也会用声音交流。人类无法听到，但是植物确实在发出声音。有些植物用根发出响声，玉米和辣椒就是如此。它们还会“倾听”其他植物发生的响声。一棵辣椒秧可以分辨出邻近的植物是有益的还是不友好的。在没有足够的水分时，一些树会发出咔嗒声，这表明干旱即将来临。5最令人惊讶的是，植物之间存在令人惊叹的通信系统，
21、该系统几乎可以连接森林中的每一株植物。科学家称该系统为“树联网”。它在某种程度上与我们使用的互联网相似。互联网是由电缆和卫星连接起来的全球计算机网络，而树联网是由真菌在地下连接。这种真菌网络把不同植物的根相互连接起来。通过树联网，植物可以相互分享信息，甚至于食物。例如，一些松树能够给小松树输送食物，帮助它们生长。不过就像我们的互联网一样，树联网也有自己版本的“网络犯罪”。植物间会互相窃取食物，或者传播毒素以攻击其他植物。也许有一天，科学家将学会如何创建“防火墙”来帮助阻止树联网内的攻击。6科学家对于植物互相交流的秘密方式的认识在与日俱增。谁知道呢？也许有一天，我们会对植物交流有足够的了解，能够与它们展开“交谈”。谢谢观看 THANK YOU!
