1、Unit2 Topic1 SectionC 精品学案教学目标：1. 熟记本节单词及短语: deaf , print, hearing, loss, recently, disturb, do harm to , uncomfortable, unpleasant, sort, environmental, including, onto, sentence.2.初步了解who引导的定语从句。3.能正确使用本课所学对过去和现在进行比较以及谈论健康状况。4.了解污染的危害提高环保意识。教学难点:1.引导学生通过阅读不同种类的污染，获取具体信息，进一步提高阅读的能力。2.能正确使用本课所学对过去和现
2、在进行比较以及谈论健康状况。3.了解各种污染的危害提高环保意识。教学难点： 1. 能正确使用本课所学对过去和现在进行比较以及谈论健康状况。短语、词组的法：1). be harmful to = do harm to 对有害 2). not all 表示不完全否定意为“不是所有的都3). no better than 同一样坏、差课前预习：1.熟读本课要求认知和掌握的单词、词组和句型。2. 查阅下列词语，中英互译。Make noises_ todays world _ 并非所有的 _ go deaf _失聪 _ 相当多_ 听力丧失 _大声喧哗_ no better than _ do harm
3、to/be harmful to _harm sth _ 各种各样的_ in public _ 3、自主探究读1a回答下列问题。 1).Does the writer think noise is a kind of pollution? 2). Is it harmful to human beings health How do you know? 4.根据1a的内容，完成1b。5.预习指导：1). be harmful to = do harm to 对有害 do great harm to对有着极大的损害 e.g.: It not only disturbs others but al
4、so does great harm to hearing.译：_ harm 可以当名词也可以当动词，名词为不可数名词，动词是及物动词E.g.： Its great harm to him. Dont harm him any more.2). not all 表示不完全否定意为“不是所有的都”。 同样的结构还有not both, not every, allnot , bothnot , everynot e.g.: 然而不是所有的人都知道噪音也是一种污染 However _ people know that noise is also a kind of pollution总结：not与b
5、oth, all, every或every的派生词连用时，表示部分否定。“不是所有的”neither, none, nothing, nobody, no one等用来表示全部否定。3). quite a few = many (+可数名词复数) 许多,相当多。 quite a little = much (+不可数名词) 许多。 very few 可数名词复数 几乎没有几个。 very little 不可数名词 几乎没有一点。 类似的短语还有：Its well known that 众所周知. Its believed that 人们相信.4). no better than 同一样坏、差
6、= almost as bad/ badly as 比较：Youre no better than me. 你也不比我好多少。(言下之意为两人做得都不好)Youre not better than me. 你没有我(做得)好。5) cause sb. to do sth. 使某人做某事e.g.: Careless caused him to fail the exam. 译：_ 6) have an effect on sth. 对某事有影响。 have no effect on sth. 对某事没有影响。教学过程预习展示：1. Check if the students can read t
7、he new words and phrases,pay attention to their pronunciation .2.Ask some students to read the passage aloud and help each other to do so .3.Read 1a for the for time in groups, finish 1b.合作学习展示1. Group work: Read 1a again and in group discuss the answers, and then complete the tasks in 1c.2. Complet
8、e the following passage with the correct form of each word. Finish part2.3.Part3: Choose one kind of pollution and discuss it in groups by using the following questions.巩固落实1.Discussing: tell sth about pollution.2. Write a short report about a kind of pollution based on 2and 3 by using the topic sen
9、tence of each paragraph which is given below.训练检测：1. 用所给词的适当形式填空。 1). It was _ (report) that Liu Xiang would take part in the next Olympics. 2). Look ! There is a little boy _ (play) soccer on the playground. 3). Noise pollution can cause people _ (become) sick or deaf. 4). Its a pity that such a be
10、autiful lake _ (go). 5). People who work and live in _ (noise) conditions may go deaf. 2. 完成句子 1). 据报道奥巴马将于明年二月访问中国。 _Obama will visit China next February . 2). 吸烟对我们的健康有害。 Smoking _our health. 3). 小明这次考试出了很多错。 Xiaoming made _mistakes in the exam. 3. 单项选择。( ) 1. Were you _ the task? A. success in fi
11、nishing B. successful in finishing C. successful to finish D. succeeded in finishing( ) 2. Have you ever _ anything? No, never. A. stoles B. stole C. steals D. steal( ) 3. If _ disobeys the school rules, he will be punished(惩罚). A. all B. both C. anybody D. somebody( ) 4. He never misses a good chance _ his English. A. practice B. practicing C. to practice D. practicing( ) 5. Every day, many people lose their jobs, and I think it is _ them to find new jobs in a couple of weeks.A. easy for B. difficult for C. easy of D. difficult of
