Unit 5 Starting Out and Understanding Ideas 词汇+文本解析（ppt课件+视频）-2022新外研版（2019）《高中英语》必修第一册.rar

Unit 5 Into the wildStarting out Pand9 Understanding ideascharity monarchmonarch butterflyAtlanticwhaleannualmigrationmigrateseekn.慈善机构，慈善团体n.君主，国王黑脉金斑蝶adj.大西洋的n.鲸adj.一年一度的，每年的n.迁徙v.移栖，迁徙v.寻找，寻求Words reviewprofessormeasure positiondetermineeventuallysolutionmysteryamazingcrashn.教授v.量，测量n.位置v.测定，确定adv.终于，最终n.解决，解决方法n.难以理解的事物，谜adj.惊人的，了不起的v.暴跌Words reviewper centdestroychemicalcaterpillarcreaturesurviveeffectflow chartaccommodationn.百分比v.破坏，毁掉n.化学品n.毛虫（蝴蝶等昆虫的幼虫）n.生物，动物v.活下来，幸存n.影响，结果流程图，作业图n.住处，工作场所Words review1.What are the most popular pets in the UK?2.What is the most important animal charity in the UK?1.What are the most popular pets in the UK?2.What is the most important animal charity in the UK?The most popular pets in the UK are cats and dogs.The most important animal charity is the RSPCA(the Royal Society for the Prevention of Cruelty to Animals).Questions:1.Do you like animals?What animals do you like best?2.Which animal can be kept as a pet?Have you got a pet?3.Why do you like the pet?What does it bring to you?What are the relationships between the people and the animals?horseman and horse(competition companion)owner and livestockblind people and guide dog(life assistant)pet owner and petLook and choose the animals that migrate.While-reading What is the main idea of the passage?A.The monarchs migration.B.The reasons for monarchs migration.C.Mexicos monarch.The main idea of a passage can be found from its title,the topic sentence,or even the pictures.para1 Many animals move from one place to another at certain times of the year.This annual movement is called migration.They migrate to find food,seek a partner,or in search of warmer weather.One of the most wonderful migrations in nature is that of the North American monarch butterfly.Find out the topic sentence in each paragraph.whatwhytopicHowHowto introduce the monarchs migration.para2Every autumn,millions of these beautiful insects with fine black and orange wings begin a long and difficult journey.Somehow they manage to travel around 4,000 kilometres south and find their way to California or Mexico.However,until recently no one knew how they did this.whenwheredistancethe topic sentenceconclude by youeselfThe time,distance and the destination of the monarchs migration.para3A team of scientists led by Professor Eli Shlizerman at the University of Washington has now found the answer.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.These two pieces of information-the time of day and the point where the sun is in the sky-allow the butterfly to determine the way to go.Eventually,it manages to reach the places where it will spend the winter.howthe topic sentenceconclude by youeselfThe way of the monarchs migration.para4The solution to the mystery of the monarchs amazing ability comes at a time when it is in serious trouble.Its population has crashed by as much as 90 percent in the last few years.Sadly,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.The serious trouble of the monarch.the topic sentencepara5The research on the monarchs behaviour has however led to a greater awareness of this creature.People have been working together to record its migration and make sure that there are enough plants for it to feed on.If this works,there may come a time when the number of monarch butterflies increases once again.The more we know about this lovely creature,the greater the chance it will survive and keep its place in the natural world for a long time to come.the topic sentenceHow to help the monarch get out of the trouble.Choose where you are most likely to find the passage.1 In a scientific 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.一本旅游手册一本旅游手册一篇科学研究论文一篇科学研究论文Expository writing 说明文说明文 da.The monarch butterfly is able to tell_.b.Using these two pieces of information,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 sun the places where it will spend a cbthe wintercause-effect Read and fill:e.Humans _ trees.f.The _ where monarchs can be found is destroyed.g.Humans 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 per cent)hegfcause-effect Read and fill:Read Paragraph 5:A.It is quite encouraging.B.It is fairly complex.C.It is very unacceptable.D.It is rather useless.What does the last paragraph imply about the research?鼓舞人心的 Think and share What impresses you most about the monarch butterfly?It said,“Its population has crashed by as much as 90 per cent in the last few years”in the text.This gave me a huge shock.Its high time that we should think over about the cause and take measures.What can people do to help protect the monarch butterfly?Plant native milkweed species to feed on Do not use chemicals that kill the plants as much as possibleProtect the natural environment