课件22张PPT。Unit2 Saving the EarthTopic2 All these problems are very serious.Section ATom Tom’s father Tom is very sad, he is leaving.
Do you know why?Tom Tom’s father Tom is very sad, he is leaving. Do you know why? cut down Tom Tom’s father Tom is very sad, he is leaving. Do you know why? day by day,
fewer and fewer treesTom Tom’s father Tom is very sad, he is leaving. Do you know why? as a result As students, what should/shouldn’t we do? save waterAs students, what should/shouldn’t we do? spitAs students, what should/shouldn’t we do? care for wild animalsAs students, what should/shouldn’t we do?不要踩踏草地和摘花 walk on the grass & pick flowersAs students, what should/shouldn’t we do?不要乱扔垃圾 leave rubbish here and there good behavior rude behaviorRead 1a and answer the following questions.What are they talking about?
2. Why is air pollution a serious problem in China?
3. What should students do and not do to protect
the environment?
4. Can you give some advice to the government?They are talking about air pollution and envionment protection. Because China has become the world's largest producer
and user of coal. We shouldn’t leave rubbish here and there. Don’t spit
anywhere in public. Don’t walk on grass or pick flowers.
Everyone should care for wild animals and plant more trees. （影片）不定代词和不定副词有哪些？ somebody, someone, something, somewhere
anybody, anyone, anything, anywhere
none, nobody, nothing, nowhere
everybody, everyone, everything, everywhere
不定代词和不定副词有哪些？ somebody, someone, something, somewhere
anybody, anyone, anything, anywhere
none, nobody, nothing, nowhere
everybody, everyone, everything, everywhere
一般情况下用于肯定句一般情况下用于否定句和疑问句表否定含义可用于各种句式下面的题你会做吗？I have ____ to tell you.
A. important something
B. something importantB形容词修饰不定代词和不定副词要放在不定代词/不定副词之后下面的题你会做吗？Everybody ___ ready for the match.
A. is
B. areA不定代词作主语谓语动词要用单数。下面的题你会做吗？Everyone is in the hall, ___________?
Everything goes well, ___________? aren’t they在反义疑问句中，表示人的不定代词作主语时，其反义疑问句的主语通常用they；当句子中的主语是指物的不定代词时，其反义疑问句的主语通常是代词it。 doesn’t itWork alonePlease help Kangkang complete the letter to his headmaster, using the following words.none nobody others anything other something everyone everybody everywhere anybodyDear Headmaster,
I’m writing to tell you ________ important. ________ likes to be untidy. However, some students throw waste paper and bottles
_________ . We all need a quiet place to study, but some students often make too much noise at school. Even worse, some of them are quite rude when talking to______ . somethingNobodyeverywhereothers_______________ knows their behavior is bad, but ______of us knows how to stop them. I think we should make rules to change the situation. Perhaps it will be hard for us to keep the rules in the beginning, but if ___________________does their best to follow the rules, our school will become better and better day by day.
Sincerely,
KangkangEveryone/Everybodynoneeveryone/everybody A. Listen to the tape and circle the phrases you hear.become weaker destroy the environment
disappear rapidly on this earth
enough bamboo to eatB. Listen again and fill in the blanks.1. Now some kinds of animals are becoming
______ ______ ________.
2. Some animals are _______ ______of dying out
completely.
3. In the past, pandas lived a quiet life and had
______ ______food.
4. Humans have come to_______ the importance
of protecting animals.
5. We should _____ ______ ____to protect them.do our bestin dangerplenty ofrealizefewer and fewer（录音）Useful expressionsIt says that China has become the world’s largest
producer and user of coal.
As a result …
But the government is doing something useful to
protect the environment.
Everyone should care for wild animals and plant
more trees.
We should do everything we can to protect the
environment.Bye-bye!课件介绍及使用说明
本课件是为仁爱英语九年级上学期Unit2 Topic2 All these problems are very serious. Section A编写的教学课件。本话题是上一话题的继续，主要谈论关于环境污染所造成的危害。通过贴近生活的事件，向学生们展示环境的危害。语法项目是不定代词和不定副词的用法。结合本阶段学生学习的重点语言知识，根据新课标对学生各种能力培养的要求，为本课主要设计了头脑风暴、小组竞赛等课堂活动形式。希望为学生提供一个学习语言、运用语言的生动活泼的环境。
复习/导入----由于本课是本话题的第一课时，但是其内容又与上一个话题有紧密的联系，因此复习环节和导入环节合并在一起。通过给学生相应的图片以及提示单词，鼓励学生回忆相关内容并表述。此环节可以引入竞赛奖励机制，以便更好地调动学生的学习热情。（幻灯片2-10）
呈现----①教师根据前一个教学环节的讨论，可以自然地进入对新单词behavior 的教授，并进行一定的讨论。可以开展头脑风暴的活动，让学生尽可能多的在黑板中写出来。（幻灯片11）
②教学课文。（幻灯片12。点击右上角的影片进行超链接。）
巩固----①回答问题（幻灯片 12）
②语法教学片段：对不定代词和不定副词进行总结讲解，为了避免语法知识讲解枯燥，采用了边练习边讲解的形式。（幻灯片 13-17）
练习----①巩固不定代词和不定副词的用法，完成课本2。（幻灯片18-19）
②完成课本3。（幻灯片20。点击右上角的录音播放录音。）
综合探究活动----①让学生自我归纳本课所学习的重要词组和句子。（幻灯片 21）
课件21张PPT。Unit2 Saving the EarthTopic2 All these problems are very serious.Section B（歌曲1）Which color do you like best? Why?Which color can make you the most relaxed?What can trees do for us?What can trees do for us?Our lifeOur environmentWhat will our world be like without trees?What will our world be like without trees? sandstorm desert human beingsWhat should we do ?We should stop from cutting down trees.We should prevent people from cutting down trees.Listen to 1a, answer the questions.What are they talking about?What causes this kind of bad weather?They are talking about sandstorms.People have cut down too many trees. A lot of rich
land has changed into desert.（录音1）Read 1a, answer the question.What are trees’ functions?Trees can stop the wind from blowing the earth away.A lot of water can be saved by forests.Trees can also prevent the water from washing the
earth away.A.（影片）B.C.Look at the picture, describe them using the words given. wash the earth awayLook at the picture, describe them using the words given. many treesLook at the picture, describe them using the words given. change into desertLook at the picture, describe them using the words given. forests goneLook at the picture, describe them using the words given. sandstorms come into beingLook at the pictures, describe them using the words given. cut down treesNumber the pictures and then talk about them in groups.( )( )( )( )( )( )Do you know how sandstorms come into being? 415362 Trees are very useful to us. They can help us p_____ the wind from blowing the earth away and stop the s_______ from moving towards the rich land. Trees also s________ water from running away. They can keep a great d______ of water. So we must stop people from c______ down too
many trees. Otherwise a lot of rich land will
change into d_______, l_______ only sand. We must get rid of (摆脱) this kind of bad b______.根据句意及首字母提示完成句子。 revent and ave ealutting esert eaving ehaviorTrees are important to us, what can we do to
protect them?
We should prevent people from … Protecting and Saving Water
Water is very important to human beings, but not everybody knows how to protect and save it. Here are some ways:1. Pass laws against water pollution.
2. Stop factories pouring waste water
into rivers.
3. Remember to turn the tap off when
you leave.
4. Collect and reuse waste water.
...Group workRead and discuss different ways of protecting and saving water.（录音2）Useful expressionsThe wind is blowing strongly with lots of sand.
People have cut down too many trees.
A lot of rich land has changed into desert.
And a lot of water can be saved by forests.
They can also prevent the water from washing
the earth away.
Stop factories pouring waste water into rivers.Bye-bye!（歌曲2）课件介绍及使用说明
本课件是为仁爱英语九年级上学期Unit2 Topic2 All these problems are very serious. Section B编写的教学课件。本课时主要讲树木的作用以及砍伐树木的危害。结合本课新单词相对比较多，但是话题是热点话题的内容特点，本课主要以图片展示为线索，教学新单词并引入讨论话题，力求让学生不仅能够学习新的语汇还能提高保护绿林的意识。
复习----①音乐欣赏（幻灯片1。资源从“仁爱教育网”相应位置下载。）
②让学生复述上一课对破坏环境不良行为的总结。
导入----幻灯片向学生展示几张颜色突出的实景照片和几个颜色图片，让学生选择出最能让自己放松心情的颜色。（幻灯片2）
呈现----根据图片，讨论与树木有关的环保知识。（幻灯片3-7）
②教学课文，呈现两个问题，做听力回答。（幻灯片8）
巩固----在上环节的基础上再阅读文章并回答一个问题。（幻灯片 9。点击右上角的影片实现超级链接。）
练习----处理课本1c的内容，先看图及所提供的词说句子（幻灯片10-15），后总结沙尘暴是如何形成的。（幻灯片16）最后得出结论说明树的重要性，人类不应该乱砍乱伐，应提高保护绿林的环保意识。（幻灯片17、18）
综合探究活动----①小组讨论如何保护水资源，并派代表汇报各组观点。（幻灯片 19。点击幻灯片19右上角的录音2进行播放。）
②小组讨论，引导学生自己总结本课的重点句式。（幻灯片20）
