课题：Unit 2 Topic 1 课型：新授
执笔人：张耀武 审核： 备课时间： 年 月 日
Unit 2 Saving the Earth
Topic 1 Pollution is harmful to people's health.
Section A
Ⅰ. Teaching aims and demands 教学目标
1. Learn some new words and phras:
bee, my goodness, waste, stream, breathe, be harmful to, influence
2. Learn some uful ntences:
(1) Oh, my goodness!sp是什么意思
(2) Look, there are veral chemical factories pouring waste water into the stream.
3. Learn direct speech and indirect speech:
(1) Kangkang said that it was a beautiful place with flowers and grass.
(2) Kangkang said that the flowers and grass had gone.
4. Learn and talk about different kinds of pollution:
(1) Air pollution makes people sick.
(2) Light pollution is harmful to our eyes.
(3) Litter influences our environment.
课前导学
1. The flowers and grass have gone!鲜花和绿草都消失了！
go在此处为不及物动词，意为“不复存在，不见了”。如：
The pain has gone. barbarous疼痛消失了。
另外，go还可以表示“不行，垮，完结，死亡，消逝，起作用或处于某种状态”的意思。如：Her sight is going. 她的视力不行了。
The fish is going bad. 鱼快变质了。
2、Look, there are veral chemical factories pouring waste water into the stream. 看，有几个化工厂正往小溪里排放废水。
（1）There be +sth./sb. + doing sth. 意为“有某人或某物正在做某事”。如：
There are many people living in the area now. 现在有许多人住在那个地区。
There be sth./sb. to do sth. 有某人/某物（将要/经常/过去）做某事，有做某事的人/物。如：
There are no people to go there. 没有人要去那儿。
There were few machines to help us do farm work in the past. 过去几乎没有机器帮我们做农活。
There will be no time to go shopping this weekend. 这个周末没有时间去购物。
（2）pour ... 向......投入.......，如：
The government has poured millions of yuan into the education. 政府在教育上投资数百万元。
pour away 倒掉
3. People pour waste water into rivers and lakes, so... 人们住河里、湖里倾倒废水，因此…
waste adj. 废弃的，无用的；n. 浪费，损耗，消耗，荒地say hello 歌词 v. 浪费（反意词save)
如：It's a waste of time. 这是浪费时间。（名词）
Turn up all the wastes. 开垦所有的荒地。（名词）
Don't waster electricity. Turn off the lights when you go out. 别浪费电，出去时关掉灯。（动词）。
4. Light pollution is harmful to birds. 光污染对鸟类有害。
（1）pollution n. 污染，为不可数名词。
Pollute v.污染，弄脏 如：
The factory polluted the rivers nearby.这家工厂污染了附近的河流。
（2）be harmful to introduction是什么意思对某人/某物有害，等于do harm to sb./sth.
Reading in the sun is harmful to our eyes.= Reading in the sun ______ harm ___ to our eyes. 在阳光下读书对土壤污染眼睛有害。
5. fasoliLitter influences our environment. 垃圾影响土壤污染环境。
Influence v. 影响，对…起作用，可用副词greatly/strongly/heavily等修饰
n. 影响，作用，可用形容词good/bad等修饰。
如：His writings have strongly influenced the millions of lives. 他的作品深刻地影响了千百
vent
万人的人生。
stealthyhave a strong influence on sb. 对某人影响深
6.in，after，later 都含有“在……以后”的意思，但它们在用法上有区别。
日语 报名
A. in作介词，用来表示从现在算起的“过一段时间以后”，常用在将来时的肯定句里，一般与go, come, start, arrive, return (be back), finish等表示瞬间动作的终止性动词连用。如：
They will arrive in half an hour. 半小时后他们将到达。
B.after其后既可接时间点，又可接时间段。但是，如果after用于一般将来时，那么其后应接时间点。如：
He left there after two o'clockthat afternoon．那天下午两点以后，他离开了那儿。
He started to go again after two days．两天以后，他又走了。 I think he'll come here after three o'clock．
我想他三点钟后将来这儿。
C. later作副词，可以指过去，也可指将来，常常放在时间段的名词之后。如：
Three days later he got to Beijing．＝After three days he got to Beijing．他三天以后到达了北京。
At first she was asleep. Half an hour later/After half an hour she woke up. 开始她睡着了，半小时后醒来了。
The radio says that the sun will come out later.
收音机里说太阳稍后会出来。
课前预习
一．英汉短语互译
1.Lots of 2. Two days later
find my way3. Chemical factories 4. have a picnic
5. of cour not 6. too much
7.harm to 8. be harmful to
二．预习1a国庆的诗歌，并和自己的话复述
三，预习，课本119页“直接引语和间接引语”，并将下列直接引语改成间接引语。
1．He said: “I’ve left my book in my room.”
→
2．She said: “He will be busy.”
→
3．She said to Tom, “Can you help me?”
→
4．She asked, “Is this book yours or his?”
教学步骤
导入----①音乐欣赏
②和同学们讨论旅行经历，去过哪些地方，猜测康康选择的野餐地点，导入新课。
呈现----①看图片，和老师进行对话，关注一些环境变化现象（如：罗布泊），学习a place with …, ud to be两个语法结构。
（出示被严重污染的环境图片）Would you like to have a picnic in such places?
（出示罗布泊的图片）Do you know this place? It’s Lop Nur (罗布泊).
It ud to be a beautiful place with…
②呼吁大家保护地球，关注污染问题。
Pollution really caus too many problems. We must protect our earth now.
（讲解）too many + 可数名词复数
too much + 不可数名词
much too + adj./adv.
③通过两幅West Hill过去和现在的对比，呈现污染导致的严重后果。并讲解词汇veral和句型there be + sth./ sb. doing sth.
（图片八）What can you e in the picture?
Can you e bees and butterflies dancing
Is the West Hill a beautiful place now?
（图片九）Is the West Hill a beautiful place now?
