A Class that is Open

Content: Lessen 33. ( Unit 9 Saving the Earth)
(Ⅰ) Language points:
1、Words and expressions：① fit、 be fit for、 Hear about、 room. Standing room、 Turn…into…；②damage、Lecture、 Pollute、pollution、desert；③ nuclear、 nuclear waste、 radiation.
2、Everyday English: It’s a good idea to do sth. I agree with you. Yes, it certainly is. That’s quite true. If we go on polluting the world, it won’t be fit for us to live in.
(Ⅱ) Skills: 1、The usage of eveayday English;
2、The usage of these sentences about protecting the earth and controlling the population .

Procedure:
Step 1、Revision ① Check HW：(1) Give the following English：
1、适合于、毁环、原子核的； 2、听说、演讲、放射物；
3、立足之地、污染、沙漠； 4、把……变成、人口、核废弃物。
（ⅱ）Read the words and expressions of Lesson 33.and then read after the teacher.
（ⅲ）Deal with some languages of words and expressions.
1) be fit for sth/be fif to do sth. He is fit for the job.
He is fit to do the job . (=He is fit for doing the job.)
These shoes are not fit to wear. The food isn’t fit to eat.
* fit (adj) (ⅰ)衣鞋等尺寸大小款式是否合身；（ⅱ）某人能力是否适合做某项工作；（ⅲ）某种情况的存在是否适合做另一件事情。
Suitable (adj) “适合的”一般指外表；(ⅰ)形状、款式是否协调；(ⅱ)上下文意义是否连贯；(ⅲ)是否合某人的心意。Is this present suitable for her?
2) hear about “听说”、“听到过” hear of (ⅰ)听说 （ⅱ）考虑
Learn about (ⅰ)听说 (ⅱ)了解 learn of 听说
② Ask some questions about environment according to the picture on page 49.
Today we are going to talk about the world in which we live.
Do you think the world is facing a lot of problems? If you do, please think about these problems. What are these problems?
1) What makes the air dirty? (Smoke from the factories, power stations and cars )
2) What makes the water of our rivers dirty? (waste water from factories and cities)
3) What do we do about them? (We must stop pollution, we must protect our earth)
Step 2. presentation (Part 1) ① Write down the title of the lesson.
② Listen to the tape and answer some questions.
1) What was the conference about?(It was all about the damage that is being caused to the word)
2) What did Jackie do at the meeting?(Jackie listened to some lectures about pollution and agriculture, nuclear waste. radiation and so on at the meeting)
3) What must we do to stop poplution?(We’ve got to think of ways of changing people’s habits)
4) What is the population of China now?(1.3 killion)
What is the population of the world today?(6 billon )
5) Do you think we should control the increase of population”Why? (Yes, If the plpulation keeps growing so quickly, there will only be standing room for us and there will be no place to lie down or to sit down next century)
6) What will happen if we do not pay attention to the pollution?(The world won’t be fit for us to live in)
③ Give some advice about language points.
1)damage(vt) The trees were damaged by the storm.
“毁坏”（vi）Soft wood damages easily.
“损害”(n) He did a lot of damage to the class.
do(cause) damage to——“对……造成破坏”，造成……的损失（损坏）。
destroy (vt) “毁坏”（程度大） You have destroyed all my life and my hopes.
2) am(is、are) being +P.P (现在进行时被动态)——
The class is being take by Mr Cai . The questions are being answered by us students.
Step3 Dialogue ① Listen and follow .② Do some explanation.
1) it was all about…内容全是关于；
2）go on doing sth/keep doing sth 继续干某事；
3）have got to do sth(Bri. Eng. in oral)/=have to—“不得不”
4) There be+ 主+left…（“留下的有……”）
There will only be standing room left for us next century ,and there will not be any place left for us to lie down or to sit down.
There’s some work left for us to do.
③ Practise in pairs; ④ Act the scene by two pairs, using these phrases: 1) What was the conference like?
2) What was the conference about?
3) What did you do at the meeting?
4) It’s a good idea to hold such conferences.(Yes.…)
5) I agree with you.(Yes. It certainly is.… …)
6) That’s quite true.
7) What else did you hear about at the meeting?
Step5. consolidation:① Do some exercises on the slide.
1) de s t(沙漠) 2）l ct re (演讲)
3）hear (听说) 4)do about (采取一些措施)
5）pay to(特别注意)
6）The conference was all about the (毁坏)that （正在造成）to the world, so it was called“ ” （拯救地球）.
7)Jackie and the other people listened to some lectures about
radiation and so on.
8)They also had a talk about the in the world’s .
9) If people polluting the world, it won’t man to live in.
10) If the population keeps so ,there will be left for man .
②Rewrite the dialogue into a passage according to these questions:
1) What conference did Jackie attend?
2) What was it about?
3) What did they do at the beginning?
4) What opinion did Jackie have after attending the conference?
5) Say something about the talk on the increase in the word’s population?
Homework: ①Finish off WB; ② Be ready for part 2 of lesson 33.
③Rewrite the dialogue into a passage as written work.