Unit 5 Into the wild Period 1 Starting out & Understanding ideas （ppt课件）- -2024新外研版（2019）《高中英语》必修第一册.pptx

1、外 研 版 必 修第一册 Unit 5 Period 1Starting out&Understanding ideas(I)教学目 Lead-in1 Watch the video and answer the questions.1.What are the most popular pets in the UK?2.What is the most important animal charity in the UK?Cats and dogs.The RSPCA(the Royal Society for the Prevention of Cruelty to Animals).2

2、Look at the pictures and answer the questions.1.What are the relationships between the people and the animals?2.What animals do you often interact with?What is your relationship with them?pet owner and petblind people and guide doghorseman and horseowner and livestock学习目标学习目标12To get the main idea o

3、f the passage and understand the monarch butterflys features and how it migrates;To understand the meaning of expressions in the passage,talk about your ideas about what people can do to help protect the monarch butterfly.目标一目标一:To get the main idea of the passage and understand the monarch butterfl

4、ys features and how it migrates.Activity 1:Look at the pictures and choose the animals that migrate.d de ef fa amonarch butterfly b bSiberian crane c cAtlantic salmon red panda Killer whale African lion Now talk about what you know about animal migration.Activity 2:Go through the passage quickly and

5、 answer the questions.What is the main idea of the passage?A.The monarchs migration.B.The reasons for monarchs migration.C.Mexicos monarch.Activity 3:Match the main idea of each paragraph and then analyze the structure of this passage.Para 1 The monarchs migration.Para 2 The definition of migration.

6、Para 3 The effects of the research.Para 4 How does the monarch finish its migration?Para 5 Whys the number of the monarch falling?Part 1(Para.1&2)Background introductionPart 2(Para.35)The research on the monarchs migrationActivity 4:Choose where you are most likely to find the passage.1.In a scienti

7、fic research paper about the monarch butterflys migration.2.In a popular nature magazine introducing the monarch butterfly.3.In a travel leaflet encouraging people to visit North America.Activity 5:Read the passage and find out what mystery the scientists have solved.The scientists have solved the m

8、ystery of how monarch butterflies manage to travel a long distance and find their way to their destination.Activity 6:Read the passage again and finish the following tasks.Task 1:Read Para.1 and answer the questions.1.Whats the migration?(Definition)2.Why do the animals migrate?(Reasons)1 The annual

9、 movement of many animals from one place to another at certain times of the year.2 They migrate to find food,seek a partner,or in search of warmer weather.Task 2:Read Para.2 and fill in the chart.The monarch butterflys migrationTimeDestinationDistanceEvery autumnCalifornia or Mexico4,000 kilometresT

10、ask 3:Read Para.3 and answer the questions.1 How does the monarch migrate?2 Who find the mystery of how the monarch migrate?1 The monarch is able to tell the time of day.It uses its eyes to measure the position of the sun.These two pieces of information-the time of day and the point where the sun is

11、 in the sky-allow the butterfly to determine the way to go.2 A team of scientists led by Professor Eli Shlizerman at the University of Washington.Task 4:Read Para.4&5,answer the questions.1 What is the main reason why the monarchs population falls?2 What is the positive effect of the research on the

12、 monarchs behavior?1 Human activity is the main reason why the number of monarch butterflies is falling.In many of the places where the butterfly can be found,people are destroying the natural environment.They cut down trees and use chemicals that kill the plants that monarch caterpillars eat.2 The

13、research on the monarchs behaviour has however led to a greater awareness of this creature.Activity 7:Complete the sentences with expressions from the passage.Then use the sentences to complete the“cause-effect”flow charts.a.The monarch butterfly is able to tell _.b.Using these two pieces of informa

14、tion,the monarch butterfly determines _.c.The monarch butterfly measures _ with its eyes.d.The monarch butterfly reaches _.the time of daythe way to gothe position of the sunthe places where it will spend the winter da/cc/ab he.Humans _ trees.f.The _ where monarchs can be found is destroyed.g.Humans

15、 use chemicals that _ that monarch caterpillars eat.h.The monarch butterflys population _ in the last few years.cut downnatural environment of many placeskill the plantshas crashed(by as much as 90 percent)e/gg/efActivity 1:Find the important words,phrases,and language points you want to share their

16、 usage to your partner.Discuss in groups and then share with the class.目标二目标二:To understand the meaning of expressions in the passage,talk about your ideas about what people can do to help protect the monarch butterfly.1 seek vt.寻找，寻求(教材原句P50)They migrate to find food,seek a partner,or in search of

17、warmer weather.他们迁徙或为了寻找食物，或为了寻找伴侣，或为了寻找温暖的天气。例He sought out his friend in the crowd.他在人群中找到了他的朋友。【拓展】seek to do sth.设法、企图做某事seek after/for 追求，探索seek out 搜寻出；挑选出；找到seek ones fortune 外出寻找发财机会，外出闯荡The young singer seeks to sing(sing)a song which can be spread nationwide.Why do modern people seek after

18、/for material possessions?He sought out a comfortable place where he could lie down and take a rest.2 measure v.量，测量；衡量linking verb(指尺寸、长短、数量等)量度为 n.措施，方法；计量标准(教材原句P50)They have found out that the monarch is able to tell the time of day.It uses its eyes to measure the position of the sun.他们发现黑脉金斑蝶可以

19、分辨出一天的时刻。它用眼睛来测量太阳的方位。例The tailor asked me to stand there to measure my waist.裁缝让我站那里测量一下我的腰围。拓展take measures to do sth.采取措施做某事to ones own measure 按照某人自己的尺寸The local government is supposed to take effective measures to protect(protect)wildlife in no time.The table measures(measure)at least 1.50 mete

20、rs in length.3 determine v.测定，确定，查明，准确算出；决定；安排(教材原句P50)These two pieces of informationthe time of day and the point where the sun is in the skyallow the butterfly to determine the way to go.这两条信息一天中的时刻和太阳在空中的方位让黑脉金斑蝶确定它的路线。例No matter what happens,she has determined to tell the truth.无论发生什么事，她都已经决定把真

21、相说出来。(1)determine to do sth.(表示动作)决心做某事，决定做某事determine on sth.决心/决定(2)determination nU决心，果断，坚定，决定，确定(3)determined adj.坚定的，坚决的be determined to do sth.(表示状态)决心做某事，决意做某事I am determined to make(make)full use of my spare time to do exercise.He patted me on the shoulder,with a determined(determine)look,sa

22、ying that I had the chance to succeed.4 destroy v.破坏，摧毁，毁掉(教材原句P51)In many of the places where the butterfly can be found，people are destroying the natural environment.在黑脉金斑蝶生存的许多地方，人们正在破坏自然环境。例A number of paintings in Cathdrale Notre Dame de Paris were destroyed in a fire in 2019.巴黎圣母院里的许多油画在2019年被

23、一场大火毁掉了。拓展destruction n.破坏，摧毁，毁灭destructive adj.毁灭性的，引起破坏的词义辨析词义辨析destroy，damage，ruindestroyv.多指彻底的、毁灭性的破坏，含有不能或很难再修复的意味。damagev.&n.多指对价值和功能的破坏，多用于无生命的事物，一般还可以修复。ruinv.&n.多指出于外部原因而受到严重破坏以致不能修复，且这种破坏使某物失去价值或用处。也可用于引申意义，表示希望、愿望的破灭。Before the firemen arrived,the whole building had already been complete

24、ly destroyed in the big fire.The rainy weather lasted for a couple of days,completely ruining our plan for a picnic.The truck whose engine was damaged yesterday is being repaired in the garage now.5 cut down砍倒；削减，缩小(数量、数目或尺寸)(教材原句P51)They cut down trees and use chemicals that kill the plants that mo

25、narch caterpillars eat.人们砍伐树木，他们所使用的化学制剂杀死了黑脉金斑蝶幼虫食用的植物。例It was by cutting down the number of the staff that she saved the company.正是通过裁员，她才挽救了公司。拓展cut in插嘴，打断(谈话)cut off打断；停止，中断(供给);使与外界隔离cut down on.减少/缩减cut up切碎6 替代词that的用法(教材原句P50)One of the most wonderful migrations in nature is that of the Nor

26、th American monarch butterfly.北美黑脉金斑蝶的迁徙是大自然中最为美妙的迁徙之一。句式分析：本句是简单句，that替代的是the migration。例1 The weather today is no better than that of yesterday.今天的天气比昨天好不到哪里去。(that替代的是the weather)7 the比较级(主语谓语)，the比较级(主语谓语)(教材原句P51)The more we know about this lovely creature,the greater the chance it will survive

27、 and keep its place in the natural world for a long time to come.我们对这种可爱的生物了解得越多，它生存下来并在未来很长一段时间内保持它在自然界中的地位的可能性就越大。句式分析：句中“The more we know”和“the greater the chance it will survive”属于“the比较级主语谓语，the比较级主语谓语”句式，表示“越就越”(1)通常情况下，这一句式中的前者即前一个“the比较级(主语谓语)”相当于条件状语从句；后者即后一个“the比较级(主语谓语)”相当于主句。(2)该句式表示后者随着

28、前者的变化而变化。(3)在表示将来意义的情况下，前者常用一般现在时，后者常用一般将来时。(4)如果句意明确，该句式常以省略形式出现，即“the比较级，the比较级”。如The more,the better。例1The harder you study,the more progress you will make.你越是努力学习，你获得的进步就会越多。例2The more he explained,the more confused we became.他越解释，我们越困惑。Activity 2:To fill in the blanks with a word or the right f

29、orm of the word the the bracket according to the content of the passage.At certain times of the year,we can see many animals move from one place to 1._.This movement is 2._(call)migration.They migrate 3._(find)food,a partner or to search for 4._(warm)weather.Every fall,millions of beautiful monarch

30、5._(butterfly)begin the journey.They manage to travel a long distance to the places 6._ they will spend the winter.Scientists find the monarch is able to tell the 7._ of day.It then uses 8._(it)eyes to measure the position of the sun.But the population of them 9._(crash)in the last few years.The mor

31、e we know about them,the greater the chance they 10._(survive).anothercalledto find warmerbutterflieswheretimeitshas crashedwill surviveActivity 3:Think and share 1.What impresses you most about the monarch butterfly?2.What can people do to help protect the monarch butterfly?学习总结学习总结1 Retell the passage in your own words.2 Can you draw a routine to show the monarchs journey?