课件21张PPT。Unit 2 Saving the Earth Topic 3 What can we do at home to protect the environment? Section D Grammarandwhile orbut( ) 1. Help others whenever you can _____ you’ll make the world
a nicer place to live in.
A. or B. and C. but D. while
( )2. Cross the road carefully, ________ you’ll keep yourself safe .
A. so B. or C. but D. and
( ) 3. Hurry up, ________ you’ll be late for the concert .
A. or B. so C. but D. and
( ) 4. ---Tell us something about Canada, OK?
--- I’m sorry. ________ Jack _______ I have ever been there.
A. Either, or B. Not only, but also
C. Both, and D. Neither, nor
( ) 5. I always enjoy visiting London, ______ I wouldn’t like to live
there.
A. because B. so C. but D. and Choose the best answer.BDADCFunctions greenershut off EasierlouderreachWhat are the three R’s?
Which means “make something less or smaller”?
What should we reduce?
Which means “use it again”?
What should we reuse?
What should we do about recycling?
Reduce, reuse and recycle. Reduce. We should reduce the things which people can use only once. Reuse. We should reuse plastic bags. We should collect waste paper or soft drink cans, and sort them so that they can be recycled. Can you answer them?Throw the rubbish here and there.
Don’t spit in a public place.
Draw a beautiful picture on the public walls.
Don’t throw things away if they can be reused.
Go to school by bike instead of by bus.
Collect the rubbish and try to sort it.
Pour dirty water into rivers directly.
Turn off the lights when you go out.Which one is right? How important is the forest? Forests are the lungs of the earth. Remove carbon dioxide from the airMake oxygenCut down Build housesPlant treesHow do you understand “Forests are the lungs of the earth”?Forests can remove carbon dioxide from the
air and make oxygen. Retell it What difficulties do tree planters face
when they plant trees ?
(1)The weather may be very hot and dry or it may be very cold and wet.
(2)There are often many insects that bite these planters on their legs, arms, and faces while they work.
(3)They carry heavy bags of small trees, and working in the mountains can be dangerous. Paragraph 2adj.干燥的，雨少的，干性的
v. 使……干，弄干，擦干Why do they plant different kinds of trees ?
They plant different types of trees so that
birds and animals can live in the forests. Paragraph 3What will happen if we do not plant new forests ?
The forests will become less and less.
We cannot breathe without them.
Would you like to be a tree planter when you are older ? Why or why not ?
…Have a try 1. Answer the following questions to see how green you are.ProjectFinding the Greenest Person=2=1=0 0—4 You have not started turning green yet!
5—9 You are pale green.
10—13 You are medium green. Try harder.
14—18 You are bright green, but do
not stop trying.Score:=31、Do you usually recycle
newspaper or cans?
Often. Seldom. Never.
2. What do you usually take ?
A bath. A shower.
3. When you have a short journey,how do you
usually go there ?
Walk or ride a bike. Go by car. Go by bus.
4. What do you usually do when you see others
littering?
Stop them.
Pick the litter up.
Do nothing.
Project5. How often do you use paper towels?
Often. Seldom. Never.
6. How often do you eat fast food?
Often. Seldom. Never.
7. What type of bags do you use for shopping?
Baskets or cloth bags.
Reused plastic bags.
New plastic bags.
8. How often do you turn off the lights when you leave a room?
Nearly always. Seldom. Never. ProjectWe learn: 1. Some words: dry
2. Some phrases: provide sth. to do
sth.; face difficulties; even though
3. Some sentences:
(1)Without them, it cannot breathe.
(2)They plant different types of trees so that birds and animals can live in the forests.
We can: 1. Use the compound sentence correctly.
2. Realize the importance of the forest.SummaryRead 1a.
Memorize the useful expressions and key sentences which we learn in this topic.
Finish Section D in your workbook.
Review what we learn in this unit.AssignmentThank you! 课件内容介绍和使用说明
本课件是为仁爱英语九年级上册Unit 2 Topic 3 Section D编写的教学课件，这是第二单元第三话题的第四课时。本课的重点是培养学生的阅读能力，让学生了解更多的环保知识，激发学生参与环保的热情，并对本话题的所有知识进行归纳和总结。课件在设计上注重对学生综合语言运用能力的训练，设计了形式多样的练习题，内容覆盖面广。为更好更有效地实现本课教学目标，本课件从学生实际出发，对教材进行了必要的整合，教学设计直观生动。基于本节课主要活动是单元复习和关于植树的阅读文章，因此对教学设计作如下安排：
Getting students ready for learning:
复习并列连词的使用，完成Grammar。(幻灯片2、3 )
复习本单元主要功能句。(幻灯片4 )
复习本单元的环保话题。(幻灯片5、6 )
Pre-reading:
出示一组森林的照片，引导学生谈论树木的重要性。引入阅读文章的学习。(幻灯片7 )
While-reading:
教师通过多组图片谈论森林的重要性及现状。引入文章第一段，学生快速阅读文章第一段，获取文章大意，回答问题，并根据老师提供图片复述第一段。(幻灯片8、9、10、11、12 )
阅读第二段，完成相应任务。(幻灯片13 )
阅读第三段，完成相应任务。(幻灯片14 )
Post-reading:
播放录音材料，让学生跟读，注意模仿语音语调。听后学生自主阅读，整合信息，完成相应任务。(幻灯片15 )
Project:
小组合作，完成project。(幻灯片16、17、18)
Assigning homework:
①总结本堂课的新单词、短语和新语法项目,让学生能把握整堂课的重点。(幻灯 片19)
② 设计了书面显性作业及课文朗读和复习等隐性作业。(幻灯片20)
