Unit4 Green world 新课标 人教版 课件

1、Unit4 Green worldUnit4 Green worldCan you tell the name of the flower?roseroseRoses are best presents to be sent to friends. And it is also very popular to send roses as love signal between young people. Red roses indicate warmth and love and white ones, purity and simplicity, blue ones, honesty and

2、 sincerity.Rose Rose tuliptuliptuliptuliptuliptuliptuliptuliptuliptuliptulipTulips are beautiful flowers and people often Send them to their friends as presents. It comes from North America.Indians there began to grow them some 3000 years ago . the Chinese national flower牡丹，国色天香，一直被国人视为牡丹，国色天香，一直被国人

3、视为富贵、吉祥、幸福、繁荣的象征。牡富贵、吉祥、幸福、繁荣的象征。牡丹是原产于我国的木本名贵花卉。从丹是原产于我国的木本名贵花卉。从唐代起，牡丹就被推崇为唐代起，牡丹就被推崇为“国色天国色天香香”。尽管朝代更迭，世事沧桑，牡。尽管朝代更迭，世事沧桑，牡丹统领群芳，影响深远，地位尊贵。丹统领群芳，影响深远，地位尊贵。 我国有种牡丹、赏牡丹的悠久历史，我国有种牡丹、赏牡丹的悠久历史，并形成了丰厚的牡丹文化。牡丹分并形成了丰厚的牡丹文化。牡丹分布广泛，品种繁多，对牡丹的喜爱布广泛，品种繁多，对牡丹的喜爱和培育，我国有着广泛深厚的群众和培育，我国有着广泛深厚的群众基础。赏牡丹、唱牡丹、开牡丹花基础。赏

4、牡丹、唱牡丹、开牡丹花会成为各地、各民族的一种喜庆盛事。会成为各地、各民族的一种喜庆盛事。Which flower is your favorite? Explain why.Growing plants in pots or boxes at home can be both fun and a useful experience. Discuss: What to grow in my garden How to take care them. When to harvest or pick them What to do How to take care of them1.Why do

5、people need to eat fruit? To keep healthy. 2. Some unfamiliar words and expressions. the richness in local fruits the poorness in local fruit species grew there in the wild keep fruit and vegetables fresh Farmers in old England often had health problems during the winter because they did not get eno

6、ugh greens. Long voyages took people away The diet aboard ships consisted of salt meat, and hard biscuits. The health of the sailors was the major concern of a captain.James Cook to keep his men in good shape He also experimented with foodssuch as dried vegetables, preserved cabbage, boiled carrot a

7、nd fruit juice and beans.the cure for this disease lay in eating fresh vegetables and fruit. found themselves in heaven when they arrived in the East With so much delicious fruit to choose from, they soon recovered their health. 3.Listen to the tape and get the topic of the passage1).This passage ma

8、inly deals with _. A. Flowers B. Grain C. Fruits2).From this passage we know that_. A. People in the past had enough fruits to eat. B. People on the voyages long ago couldnt survive long on board, one of the main reasons was that they lacked fresh fruits and vegetables. C. Captain Cook didnt realise

9、 the importance of keeping ship and the crew members themselves clean and taking regular exercises. Fruit_|Family of oranges|Other fruits|_|_Strawberry|_|_lemon_ _|family of the roses.applespeachespearsorangesbananasgrapes4.Listen to the tape and fill in the following chart5.Please judge the followi

10、ng statements as true or false.falsefalsetrue( )1. There were enough fruits in ancient Europe. ( )2. Farmers in old England often got ill during the winter because they did not get enough exercises. ( )3 Fruit and vegetables could not be kept fresh for a very long time because they they had not foun

11、d ways to keep them. ( )4.The diet aboard ships consisted of salt meat, and hard biscuits. The sailors hardly ate any fresh vegetables or fruit.( )5. The discovery of Vitamin C made people realise that eating fresh vegetables and fruit could treat this disease.truefalse Bcedure n. 步骤，程序步骤，程序

12、 a procedure for sth. 办某事的程序，手续或步骤办某事的程序，手续或步骤 the normal/usual procedure 正常的正常的/一般的程序一般的程序2. classify vt. 编排，分类编排，分类 e.g. The books in the libraryare classified according to subject. 图书馆里的书是根据科目分类的。图书馆里的书是根据科目分类的。 adj. 可分类的可分类的 classifiable n. 归类，分类归类，分类 classification 3. identification n.认明，认别，鉴定认

13、明，认别，鉴定 e.g. His only means of identification was his passport.他唯一证明身份的证件就是他的护照。他唯一证明身份的证件就是他的护照。 v. identify 识别，鉴别，确定识别，鉴别，确定常与常与with连用，意为连用，意为“认为同一，与认为同一，与有关系，同情理解有关系，同情理解 This matter is too closely identified with you.这件事和你有密切关系。这件事和你有密切关系。 4. reward n.报答，报酬，酬谢报答，报酬，酬谢+for vt. 给报酬，奖赏给报酬，奖赏 She re

14、ceived a crystal ball as a reward for her services.作为对她服务的酬谢，她得到了一个水晶球。作为对她服务的酬谢，她得到了一个水晶球。 reward sb. with sth. 以以报答某人报答某人 reward sb. for sth. 因因而给某人报酬而给某人报酬5. altogether adv.总而言之总而言之,完全地，总共完全地，总共 e.g. I am not altogether sure if Id want you as a host. 比较比较 altogether, together, gather altogether a

15、dv.总之，总共，完全地总之，总共，完全地 together adv.一起一起 Mix the salt and sugar together. gather v.收割，收获，聚集，集合收割，收获，聚集，集合 She went along the lane gathering blackberries. 她沿着乡间小道采摘黑莓。她沿着乡间小道采摘黑莓。6. distinguish vi.&vt.区别，辨别区别，辨别 distinguish between 两者之间的区别两者之间的区别 distinguishfrom 把把和和区分开区分开 distinguishing mark 与众不同

16、的标记与众不同的标记 distinguish yourself (to do sth.)表现突出表现突出 e.g. People who cant distinguish between colours are said to be colourblind.(色盲色盲)The birth of a science Unit 4Reading What products are these? 2. What are they used for? 3.Where do they come from? 4. Which countries produce them? While-readingI.

17、Fast readingHow many people are mentioned in the passage? Carl Linnaeus Daniel SolanderJoseph BanksCaptain CookKarl Linnaeus Daniel SolanderA student of KarlJoseph BanksA friend of Daniel the founder of botanical classificationDaniel and Joseph developed the theory of Karl LinnaeusJames CookBoth of

18、them joined the expedition to Oceania led by Captain James CookLanguage points mostly 不能理解为是不能理解为是most的副词的副词 mostly 与与 most 的含义是不同的的含义是不同的 mostly的主要含义是的主要含义是“大部分大部分”，“主要地主要地”。 e.g. More people arrived mostly Europeans. mostly近义词是近义词是 mainly, chieflyThe dish consisted chiefly of meat. 这道菜主要是肉。这道菜主要是肉

19、。2. make attempts/an attempt 试图做试图做+to do/at sth./at doing sth. e.g. They made no attempt to help. 他们没有想来帮忙。他们没有想来帮忙。Stephen made a faint attempt at a smile. 斯蒂芬勉强地笑了笑。斯蒂芬勉强地笑了笑。3.be based on 建立在建立在的基础上的基础上The book is based on a true story.在主动语态中，经常用在主动语态中，经常用baseon 把把建立在建立在的基础上的基础上 One should alway

20、s base ones opinion on facts.人们的看法总是应该以事实为依据。人们的看法总是应该以事实为依据。4. at first sight 即刻，马上即刻，马上 at the sight of 一看见一看见 catch sight of 看到，发现看到，发现 lose sight of 不再看见，忽视不再看见，忽视 in sight 在视线内在视线内5. born bear 的过去分词的过去分词v.生产，生育生产，生育 adj.天生的天生的1. 表示出生在何地、何时表示出生在何地、何时 be born in2.讲到出生在某一天时讲到出生在某一天时 be born onHe w

21、as born in 1805 in China.Helen was born on November 1st,1985.3.表表“出生于出生于(父母父母)”时时 be born of4.表示出生于表示出生于 family时时 be born inHe was born of poor parents. She was born in a rich family.5.表示表示“婴儿出身于（某人家）婴儿出身于（某人家） be born to”A baby has born to them. 他们添丁了。他们添丁了。He was a born musician.正式正式6.have an appe

22、tite for 爱好爱好此处此处appetite意为欲望、热情意为欲望、热情Jack has no appetite for hard work.7. on a large scale 大规模的大规模的 e.g. Our school has been development on a large scale since 1980.8. involve 卷入，牵涉卷入，牵涉常用常用 be involved in / involve oneself in/withDont involve yourself with those people.9.accumulate 积累，积聚积累，积聚表示在

23、某段时间内自然累积的同类表示在某段时间内自然累积的同类的，相关的物品。的，相关的物品。 gather 使用最广泛，指使用最广泛，指 捡起零乱散布的物品捡起零乱散布的物品 collect 指逐个地，有选指逐个地，有选 择地收集物品，有较大择地收集物品，有较大 的目的性，尤指为收藏的目的性，尤指为收藏 而进行收集而进行收集10. abandon 放弃，丢弃放弃，丢弃 相当于相当于 give up They abandoned all hope of finding the child. abandon oneself to 纵情，沉湎于纵情，沉湎于Dont abandon yourself to

24、drinking.不要酗酒。不要酗酒。ConsolidationTranslate the following phrases into English:1. 详细地详细地2. 处于支配的地位，负责处于支配的地位，负责3. 由由负责负责4. 任命某人为任命某人为5.将将分类成分类成6. 计算计算之间的距离之间的距离in detailin charge ofin the charge ofappoint sb. asclassifyintocalculate the distance between7. 一代一代传下去一代一代传下去8.建于建于之上；以之上；以为基础为基础9.参与参与; 陷入陷入

25、 的活动的活动10.根据根据;视视而定；按照而定；按照11.搜索；寻找搜索；寻找12.总而言之总而言之pass on from one generation to the nextbe based onbe involved inaccording tosearch foraltogetherII. Careful reading Before Linnaeus botany was _Astudied by doctors Bunknown to anyoneCfully developed Da branch of medicine2. Some economic species plan

26、ts such as_could help to develop local economies Arose and peony Btea and appleCcocoa and hemp DCocoa and lemon3. It was _ who made Kew a centre of scientific and economic researchAJoseph Banks BCaptain CookCLinnaeus D. Daniel Solander4.Paragraph one of the text mainly tells us _ Athe importance of

27、botanyBhow to classify plant species into groupsCLinnaeus contribution to botanyDLinnaeus discoveries about different species5.Captain Cook made _voyages altogether around the world. Aone BTwo CThree D. fourPost-reading1. How did scientists classify plants before Linnaeus?Some scientists classified

28、plants into herbs and trees, or according to the shape of the fruit, or whether they had flowers or not.2. What were the goals of James Cooks first voyage around the world?To study the passing of the planet Venus across the sun; to record, classify and describe all plant and animal life observed dur

29、ing the trip; to search for an unknown southern continent.3. Why did Joseph Banks have to supply his own money to equip part of the expedition? Because the government would not pay for such a new field of science as botany.4. What could be a possible explanation for the name “strawberry”?When people

30、 plant strawberry, they spread straw under the fruit to reduce the necessary amount of watering.Integrating SkillsIntegrating SkillsWildlife and garden Wildlife and garden rosesrosesThe process of evolutionCharles Darwin: 达尔文达尔文(Charles Robert 1809-1882,英国博物学家英国博物学家,进化论的创立者进化论的创立者)Find out the impor

31、tant people mentioned in the text.Charles DarwinGregor MendelGote TuressonFrom England From AustriaFrom Sweden1.relate to 与与有关（有联系）有关（有联系） He bought all the papers that related to this subject. 他把所有关于这个题目的论文都拿回来了。他把所有关于这个题目的论文都拿回来了。 n. relation 关系，交往关系，交往 常用复数形式，常用复数形式， + between / with I have had b

32、usiness relations with him. relation 的另一个含义是的另一个含义是亲戚，亲属亲戚，亲属He had no other near relations.2. concern vt.涉及，关系到涉及，关系到 e.g. These problems dont concern them. I think David is a good _ on you. 2.His new way of teaching produced a good _ . A influence B effectA B influence影响，主要指人（包括影响，主要指人（包括 团体）对人的影响

33、团体）对人的影响 effect 影响，多指物的影响，有影响，多指物的影响，有时指效果、作用时指效果、作用4. bringback in view 原意为原意为 “使使被看得见被看得见”，句中引申，句中引申为验证。为验证。 in view 可以看到，在望，临近可以看到，在望，临近 e.g. The time is already in view when the children must leave home. in view of 由于，有鉴于由于，有鉴于 In view if the fact, wed better give up trying. in ones view 依依看看 on

34、 view 展览着展览着 with a view to 有有的打算的打算Scientist Research /experimentResult Charles DarwinGregor MendelGoteTuressonThe wildlife of Galapagos, many varieties of garden rosesHe found the key to explaining differences between species.Flowers and peasHis research gave birth to the science of genetics.Study

35、 of a wild plant in Swedish coastHe showed difference between plants of a spice so ccurred as a result of the environment.1. What led to his writing of the famous book On the origin of species? The study of physics, chemistry, and botany. What he had observed on the voyage. His expedition on the Bea

36、gle to the Galapagos.2. Why the wildlife of the Galapagos Isles deserved special attention was that there were even differences between the species of the different islands. most of the life forms could be found nowhere else. all the species showed a clear relationship with those of America.3. The r

37、eason for the differences in the size of the beaks is that the structure of the beaks were related to the 13 kinds of finches. the bids lived in different habitats and on different source of food. the differences between species led to the differences in the size of the beaks.4. What was the purpose of Mendels experiments? His purpose was based on his love nature. His purpose was to support the ideas concerning the influence of environment upon plants. His purpose was bas