人教版八年级上册英语U2 第四课时B (2a-2b)

1、Section B (2a-2b)Unit 2 How often do you exercise?学习目标学习目标 Key words & phrases: result，percent，online，television，although play computer games，use the Internet，go camping， go online Key sentences: 1.We found that only fifteen percent of our students exercise every day. 2. Although many students l

2、ike to watch sports, game shows are the most popular. 3. Its good to relax by using the Internet 4. How many students do not exercise at all? New words and phrasesresult n.percent n.online adj.television n.although prep.through conj.mind n.结果；后果结果；后果百分之百分之在线的；联网的在线的；联网的电视节目；电视机电视节目；电视机虽然；尽管；即使虽然；尽管；

3、即使以；凭借；穿过以；凭借；穿过头脑；心智头脑；心智body n.such adj. & pron.such as together adv.die v. writer n. 身体身体这样的；那样的；类似的这样的；那样的；类似的例如；像例如；像这样这样在一起；共同在一起；共同消灭；灭亡；死亡消灭；灭亡；死亡 作者；作家作者；作家How often do you ?Lead inLead inHow often do you ?I sleep eight hours every night.How many hours do you sleep every night? be good

4、for our healthbe bad for our health2aRank these activities according to how often you think your classmatesdo them (1=most often, 6=least often). watch TV go to the movies play computer games exercise or play sports use the Internet go camping in the countryPre-readingPre-reading15154 times a week85

5、859090202020202 21313101045452b Read the article and complete the pie charts on the next page.While-readingWhile-readingWhat Do No.5 High School Students Do in Their Free Time5.Although many students like to watch sports,game shows are the most popular.尽管很多学生喜欢看运动类节目，但游戏节目是最受尽管很多学生喜欢看运动类节目，但游戏节目是最受欢

6、迎的。欢迎的。although 作连词，尽管、虽然，相当于作连词，尽管、虽然，相当于though ，用来引导让步状语，用来引导让步状语从句。从句。6.It is good to relax by using the Internet or watching game shows,but we think the best way to relax is through exercise.上网或上网或看游戏类节目是很好的放松方式，但我们认为放松的最好方式是通看游戏类节目是很好的放松方式，但我们认为放松的最好方式是通过锻炼。过锻炼。（1）by doing sth 通过做某事，通过做某事，by 是是

7、prep 通过、靠，此处表示方法、通过、靠，此处表示方法、手段，其后接名词、代词或动名词形式。手段，其后接名词、代词或动名词形式。拓展：拓展：a.by +交通工具，乘交通工具，乘/坐坐/驾驾I went to Beijing by plane b.by+时间，到时间，到.时，在时，在.以前以前I must be in bed by ten oclockc.by+地点，在地点，在.旁边旁边（2）the best way to .做做.最好的方式最好的方式The best way to learn English is to speak it every day (3)辨析辨析through ,over与与across Review the new wo