Saving the earth

heir cattle.
limit vt. 限制
1) We must limit our spending. 我们必须限制我们的开销。
2) Mother limits us to eat one cake each. 母亲限制我们只能一人一块蛋糕。
n. 限制
3) The speed limit within the city is 35 miles per hour. 在城市里的限速是每小时35英里。
7. When trees are cut down, there is nothing to hold the soil in place on the hillside.
place in place 在原处
1) She likes everything to be in place. 她喜欢将每种东西放回原处。
2) I hope you will keep the books in place. 我希望你将书放回原处。
in place of somebody:代替某人
3) Will you go in place of me?你是否代替我去？
take place:发生
4) A car accident took place yesterday. 昨天发生了一起车祸。
take the place of somebody:代替某人
5) I’ll take the place of Mr. Wang. 我将代替王先生的位置。
take one’s place:接替某人
6) I’ll take Mr. Wang’s place. 我将接替王先生。
8. However, many of these are dying out.
die out vi.（火）熄灭
1) The fire died out at last. 最后火还是熄灭了。
vi. 绝种
2) This kind of bird is dying out, and we must protect them. 这种鸟类已经正在灭绝，我们应该保护他们。
9. The purpose of the trip was to record all the wildlife and plants that we could find in the forest.
Purpose n. 目的， 通常是可数名词。目的是什么 用介词for.
1) What was the purpose of his visit? 他来访的目的是什么？
2) He came to Beijing for business purpose. 他来北京是有商业目的的。
on purpose: 专门
3) I had no doubt that she did this thing on purpose. 我毫不怀疑她做这件事是有目的的。
10. In the afternoon, we all went off separately to look for new plants.
Go off 动词短语
走开
1) She got angry and went off after she heard what I said. 听到我所说的她一生气离开了。
响起巨大的声音
2) Although the clock went off, he didn’t wake up.尽管闹钟暴响， 他仍然没有起来。
熄灭
3) The lights went off suddenly. 灯突然地熄灭了。
腐败
4) “The milk has gone off .” my mother said, “ and don’t drink it!” 妈妈说道：“别喝那牛奶了，它已经坏了。”
11. He was busy measuring a plant and taking photographs of it.
Be busy doing, keep busy doing sth. 忙于做某事。
We are busy making preparations for the coming exam. 我们正在忙于为即将来到的考试做准备。
measure vt. 测量
1) The policeman measured the speed of the car. 警察测量车速。
vt. 有……的长度，相当于系动词。
2) The room measures 6m long. 这间房子有六米长。
n.计量单位
3) The meter is a measure of length. 米是一种计量单位。
take the measure of something:测量某物的长度
4) I take the measure of the desk following the teacher’s instructions. 我遵循老师的指令测量桌子。
n.手段、方式
5）They took a strong measure to deal with the workers.他们采取了强硬的手段来对付工人。
12. 分词作为形容词时， A. 及物动词中现在分词表示主动，和动作正在进行；过去分词表示被动或动作已完成。 B. 不及物动词中现在分词表示动作在进行，过去分词表示已完成。
例如：A:
　　There are many wounded soldiers in the battlefield.
　　My spoken English has greatly improved.
　　Don’t sit in that broken chair. It’s dangerous.
　　She is a leading figure in the Party.
　　Barking dogs seldom bite.
B:
　　The risen sun, fallen leaves, retired workers, escaped prisoner , a 　　rolling stone, boiling water, boiled water.
　　另外还有一些假过去分词。如 1)“adj-noun-ed” a warm-hearted man. 2) “数词-noun-ed” The one-eyed man is hiding behind the door. 3) “数词-度量衡名称” a twenty-cent book
　　分词作表语， 现在分词表示主动正在进行， 过去分词作表语表示被动已经完成。
　　The day was so charming! The news is encouraging.
　　The door remained locked. He seemed quite delighted at the idea. The room was packed with people.

教学目标

Teaching aims and demands
　　本单元的教学目标是使学生掌握表示判断和个人看法的常用语句，学会使用现在完成时的被动语态。能利用职权课文中所提供和信息，对比民航在购买计算机管理系统前后的情况，进行描写或表述。
1)Important vocabularies
damage, waste, pollute, fit, room, turn---into, cattle, cause, limit, in place, blow away, sight, present, pour, die out, in danger, no more than, purpose, go off, measure, point to, joy
2）Daily expressions
What was the conference like? (What do you think of /about ---? How do you like ---? How about ---?)
It’s a good idea. (I agree with you. That’s quite true. )
We’ve got to do something about pollution.
What else did you hear about at the meeting?
If ---, ----.
3) Useful phases
It was called ---.
That’s a problem we Chinese must pay special attention to.
It won’t be fit for us to live in.
Many of the injured lost their sight.
A lot of disease are present in the water.
The waters of this great lake.
In 1989 an oil tanker hit a rock off the northwest coast of Alaska.
The most important one is the part that humans have played.
First, ---. Second, ----.
In all there are probably no more than a total of 400 tigers left in China.
Last Monday our class went on an organized trip to a forest to study the wildlife.
He was busy measuring a plant and taking photographs of it.
To my great joy, ---.
4) Grammar
The Past Particle as Predicative and Attribute

 

教学建议

能力训练
　　1．通过口头练习，学会日常生活中各种表达自己观点和看法的方式。
　　2．学会简单的通过表面现象分析内在缘由, 并用现实的事例进行应证，初步掌握这种文体的写作技巧。
　　3. 通过35课的学习可以简单地描述一个完整的事件。

德育渗透
　　1．通过课文的学习，使得学生深层地了解地球环保这一重要主题, 让他们懂得地球环保不是一个和几个方面的事情, 而是随时随地, 方方面面, 彼此互相联系和沟通,并且影响着我们人类的生活的大问题。
　　2．通过对于环保的了解,使同学们的意识增强, 认识到环境污染的严重危害性和从自身做起保护环境的必要性。

师生互动活动
Lesson 33：口头练习：对话交际功能——日常生活用语(给出自己的观点和看法)。
Lesson 34：学生扮演新闻记者采访土壤沙化的当地的居民,印度的受伤的病人, 国家的环保机关的负责人询问有关课文的信息。另外可以让学生扮演俄罗斯的环保专家。
Lesson 35：学生扮演国家历史博物馆的讲解员同时其他学生可以作为参观者询问问题,了解某种动物的发展兴衰史。
Lesson 36：口头,笔头练习：讨论个别环保问题并汇报写出一篇小论文。

口语建议
　　可以让学生们就西北某一贫困林区毁林种庄稼的做法发表正反两方面的讨论，运用所学的口头的表达方式。

语法建议
　　可以让学生们将34和35课课文的有关过去分词作定语和表语的结构挑出，写在黑板上用学生找的现实的课文原例分析语法。

教材分析
　　从本单元的对话来看，主要是学习如何用英语表达出自己的观点和看法, 是同意还是不同意。如同意对方的观点: I think so. I agree completely. I’m with you. That’s a good idea---. I think it is great. 如果不同意: I don't know about that. I don’t think so. Sorry, but I disagree. I know what you mean, but don’t you think ---. I see your point, but I think ---. You’re right, but I think---.
　　同时注重 damage, pollute, desert, in place, limit, fit, present, pour, die out, measure, go off, point to, to one’s jo

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