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1、.Unit2 Topic1 SectionD 精品学案教学目的：1. 学习并掌握四会词汇：coal, create, blood, high blood pressure, planet.2总结污染的种类及其：。 3. 初步学习which 引导的定语从句.4.引导学生通过阅读不同种类的污染，获取详细信息，进一步进步阅读的才能。教学重点：1. 本节的短语词组和句型。2. 引导学生通过阅读不同种类的污染，取详细信息，进一步进步阅读的才能。教学难点:引导学生通过阅读不同种类的污染，获取详细信息，进一步进步阅读的才能。课前预习：1.熟读本课要求认知和掌握的单词、词组和句型2. 完成Grammar和F

2、unctions中的填空，并尝试把这些重点句子翻译成汉语。3.朗读Grammar 和Functions中的句子，练习就身边的环境污染问题练习表达“责备和抱怨的句子。4. 自主探究阅读1a并翻译以下句子：1.They are bad for our health in many ways._2. It can cause sore eyes and breathing problems._3. With the increase in population and the development of industry, litter is everywhere. _4.Too much noi

3、se can cause high blood pressure as well._5.Lets be greener people._5.再读1a完成1b的练习：找出描绘每一种污染所带来的：Φ木渥。Air pollution _Litter _Noise pollution _Light pollution _6.预习指导 1 create 动词，“造成，创造通常指“创造新事物，塑造出人物、角色等含意。2 with 表示伴随，引导的介词短语在剧中做状语。 反义：without with+ 某种工具 “用.使用.= use sth.3 heavy industry 重工业；light ind

4、ustry 轻工业4 blood 名词，“血液 常用作不可数名词, high blood pressure 高血压5 as well “也 常用在句末。 E.g.: I dont it as well.教学过程预习展示：1. Check if the students can read the new words and phrases, pay attention to their pronunciation . Evaluating2. Read 1a in groups and complete the table.合作学习展示1. Read and understand the fir

5、st sentence. Then complete the second one. 2. Finish 1b.3.Help each other to read the passage, pay attention to the pronunciation. Evaluating稳固落实1. Discussion: work in groups and discuss some kind of pollution and its bad effects.2.Write a short passage based on the result of the discussion .训练检测：1.

6、 选择填空。 1. Reading in bed is bad _ our eyes. A. at B. to C. for 2. Whats more planes produce _ noise. A. much too B. too much C. too many 2. 完成句子 1. 随着人口的增长污染变得越来越严重。 _, pollution is becoming more and more serious. 2. 我们周围的世界每天都在变化。 The world _is changing every day. 3. 阅读理解。 The earth is about 4600 m

7、illion years old. Modern man has lived on the earth for only 35000 years but during that time we have changed our planet in many ways. Many of the things that we have done are good but more are not good for the earth. Water pollution A lot of people birds and fish die each day because of water pollu

8、tion. Factories have polluted the land and the water. As a result many rivers and lakes are now dead. Air pollution In big cities factories as well as cars trucks and buses are the main cause of air pollution. Many people in cities now have serious health problems. For example Mexico city used to be

9、 a beautiful sunny capital but today it is always covered by thick brown clouds. Soil pollution In order to have a good harvest most of the farmers use chemicals too much in their fields. Thats bad for the soil. But this kind of pollution is difficult to stop. Hope for the future These problems are

10、very serious for our future so all of us should do something to improve our environment. If we can stop pollution our planet will become more and more beautiful and our health will be better. Lets be greener people 1. _ have made the earth change a lot. A. Human beings B. Animals C. Plants D. People

11、 in other planets 2. There are _ kinds of pollution in this passage. A. two B. three C. four D. five 3. Pollution isnt a big problem now, is it? A. Yes there is. B. No it isnt. C. Yes it is. D. No there isnt. 4.Which sentence is NOT right according to the passage? A. Water pollution is very serious nowadays. B. We must stop the factories from pouring waste water into the rivers and lakes. C. Because of water pollution many rivers and lakes are now dead. D. Most of things that we have done are good for our planet. *;第 4 页