Unit 5 Working the Land 词汇（ppt课件）2-2022新人教版（2019）《高中英语》选择性必修第一册.pptx

1、Unit5 Working The Land-Reading For Writingchemical 化学的。添加标题在此录入图表的综合描述说明，在此录入图表的综合描述说明。加标题添加标题添加标题添加标题chemical 化学的bacteria细菌pest害虫production 生产；制造nutrition 营养mineral 矿物质The steps to plant P在此添加标题在此添加标题fertilize the soil施肥kill off the pestplow犁地sow播种water the croprid the soil of the weedThe steps to

2、plant have a harvest 收获fertilizer chemical farming organic farmingBetter？I Love New WordsPART 021.pronounce the new words correctly and try to remember the words as much as possible.2.Get to know some useful expressions when making conversation about body language;3.Know some skills to translate sen

3、tences.Learning ObjectivesLearning ObjectivesBy the end of this class,you will be able to:By the end of this class,you will be able to:2minsTask1:Read after Task1:Read after the tapethe tape and pronounce all the new and pronounce all the new words(words(urban-aspecturban-aspect).).（5mins5mins）Task2

4、:Read to yourself,try to remember all the Task2:Read to yourself,try to remember all the pronunciationpronunciations and s and meaningmeanings.(5mins)s.(5mins)Self-Study 10 minsSelf-Study 10 mins urban bomb tunnel extension chemical 城市的；都市的炸弹；轰炸n&v地下通道，隧道扩大；电话分机与化学相关的；化学制品 adj&n wheat flavour fertil

5、izer nutrition nutritional nutritious 小麦；小麦籽味道；特点；特色肥料营养；滋养n营养的adj营养丰富的adj alleviate poverty organic pesticide widespread 减轻；缓解v贫穷n有机的；有机物的杀虫剂广泛的adj bacterium（bacteria）in turn digest essential mineral 细菌轮流；依次；相应地消化；领会，领悟必要的，极其重要的矿物质 alternative grocery instance for instance depth root entirely aspec

6、t n可供选择的事物；adj可替代的食品杂货店例子举个例子深度根完全地；全部地方面，层面Before listeningTranslate the sentences in your guidance paper.Pay more attention to the bold(黑体加粗)words.Peer Assistance(8mins)1.A vast underground shelter built during World War II has been turned into an urban farm,supplying supermarkets and restaurants

7、in London.2.The shelter is comprised of two large tunnels that were intended to one day become an extension of the London Underground.3.What worries many people is that these chemicals may even cause cancer.4.When these wheat farmers will join this pilot experiment remains an unanswered question.5.W

8、hat she is unhappy about is the lower nutritional value and reduced flavour.PresentationPresentation(5mins)(5mins)5.Chemical pesticides and artificial fertilisers have been in widespread use in farming.6.These chemicals can stay in soil and underground water sources for a long time.This affects the

9、crops grown on the land,and in turn,the animals and humans who digest them.7.They may look beautiful on the outside,but inside there is usually more water than essential minerals,and they often have less flavour as well.8.As an alternative,some farmers have switched to organic farming,and many custo

10、mers have turned to organic food when they shop at the local grocery.9.Organic farmers also plant diverse crops that use different depths of soil to help keep it rich.10.For instance,peanuts grow on the surface of ground,but many other vegetables put down deep roots.11.Some people would prefer to st

11、op the use of man-made chemicals in agriculture entirely.Summary-单词变形1.extension-extend 延伸；扩大2.poverty-poor 贫穷的3.bacterium-bacteria 细菌（pl）4.digest-digestion 消化5.essential-essentially 有必要的6.deep-depth-deepenSelf-evaluation1.With the globalization of the economy,food security has become a(广泛的)concern

12、for most people around the world.2.Successive governments have tried to tthe problem.3.Political decisions and activities affect all(方面)of peoples lives.4.The path extended into the(深处)of the forest.5.If the supply of vitamins and(矿物质)in the diet is inadequate(不充分的),this will result in changes in body chemistry.6.(bacterium)reproduce by dividing and making copies of themselves.widespreadaspects mineralsdepthtackle Bacteria THANKS FOR LISTENING