Make our world more beautiful!
注意提醒同学，一般过去时和现在完成时的使用应准确，叙述他人的经历时，应注意他/她本人叙述时的用词和所用时态。
三、阅读训练
在学习第10课的课文时，注意三种表述的不同用词和语态：表述过去的事情、表述现在已完成或已产生的影响、下结论或展示希望。可让学生阅读后进行分析和归纳整理，将三种表述的用法和语言环境分别选出，形象地理解什么时候使用哪种时态是正确的。有代表性的句子有：
One day I was visiting … My friend said …
It is our duty … You might ask …
Have you ever thrown … Have I ever picked up
还可将本课有用的短语和词组挑出来，进行造句练习：
a piece of beautiful music
pick up
collect rubbish
keep our city clean
take care of
throw onto
spit in a public place
cut down
protect our environment
make a contribution to
四、写作训练
1. 环境保护是个世界性的话题，它需要每个人来进行努力。除了对一些生态环境进行保护以外，还要保护我们身边的环境。根据教材第10课的内容，将课文改写成Protect our environment的百字短文。建议大家如何来保护我们的生活、工作或社会环境。除了课文所涉及的内容，可以加入自己的想法和建议。
2. 组织学生完成一份关于自己身边环境的英文调查报告。提醒学生先准备好所要调查的项目，以及各项所需要的指标、数字、表格等。主题可包括水、空气、土地、河流、资源、城市等。字数在80-100单词。
可提供下列词汇与短语：
waste water, clear air, earth, city, river, dirty, rubbish, spit, throw, collect, pick up, draw, damaged badly, in public place, it seems like, it is our duty to, plant tree, improve, recycle, make a contribution to, make/keep it clean, hope, wish, etc.
在总结时，建议根据不同的话题，将学生分成若干组，分别选出代表进行报告表演。鼓励每个学生都积极参与，营造热烈的报告气氛，让学生尽量用英文进行报告。在完成此报告时，学生们应掌握了关于环境保护的相关知识，意识到保护环境的重要性，并主动去宣传相关知识。
3. 向学生展示三个场景的图片或动画：
1） 学生在学校内随便乱扔东西，使校园看起来很脏；
2） 学生们在校园内很卖力地打扫卫生；
3） 整个校园变得干净整洁。
根据这三个场景完成作文《校园的变化》。
教学设计方案
Lesson 9
Language Focus:
1. some useful expressions:
waste water; Greener China; Good idea; be afraid; a member of; a book on the environment
2. some useful sentences:
How long have you been a member of Greener China?
I've been with Greener China for a year.
How many English words have you learned since you came here?
About one thousand.
Properties: Pictures：TV; Overhead Projector; Recorder
Teaching Procedures:
I. Showing amis
Get the students to know what they will learn in this lesson and what they will do in this class:
1. To master some useful expressions.
2. To learn the grammar: the Present Perfect Tense.
3. To make the similar dialogues freely.
4. To know that they should protect the environment and make our world more beautiful.
II . Revision
Revise the grammar; the Present Perfect Tense. Ask: Have you ever been to the Great Wall? How many times have you been there? Get the students to ask and answer in pairs. Then ask several pairs to act out their dialogues.
III. Presentation
Present this dialogue:
A: Where have you been?
B: I've been to a paper factory.
A: What did you do there?
B: I saw the worker making paper there.
Present this dialogue with one student as an example, then ask the students to practise this dialogue in pairs, and get some of them to act out the dialogue.
IV. Practice
Put up a picture of a paper factory on the blackboard, get the students to talk about the factory, for example; " This is a paper factory, it makes paper, but it also makes smoke and waste water. I found the smoke was put into the air and the waste water was put into the river near it. The river has become very dirty. Lots of fish have died." Have the students talk in groups of four and then ask some of them to read out their report to share with the whole class.
V. Read and say
Part 1. Speech Cassette. Play the tape twice for the students to listen and repeat. Ask the students to read the dialogue in groups of three. Then read for the class. Get the students to read the dialogue individually again and find the answer to the following questions:
1. Where has Hu Lan just been to?
2. Why has the river near the factory become dirty?
3. What has happened to the fish in the river?
4. What does Greener China want to do?
5. Why are they going to write to the TV station and the newspaper?
6. Do you take care of the environment? Why or why not?
7. What can you do to improve the environment?
VI. Ask and answer
Read through the dialogues with the students. Ask and answer in pairs. Then make similar dialogues in pairs using the phrases in the box of the book.
VII. Write
Get the students to act as journalists, make an interview. Interview one of their friends. Ask him or her some questions about him or her and his or her family members.
For example: How long have you been in this school?
What subject have you studied?
How many friends have you m
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