人教版八年级英语上册Unit2 Section B (2a-2e)

1、第四课时： Section B (2a-2e),How often do you exercise?,Unit 2,How can we stay healthy?,watch TV go to the movies play computer games exercise or play sports use the Internet go camping in the country,2a,Rank these activities according to how often you think your classmates do them （1most often，6least often）.,2b,Read the article and complete the pie charts on the next page.,What Do No.5 High School Students Do in Their Free Time？ Last month we asked our students about their free time activities. Our

2、questions were about exercise，use of the Internet and watching TV. Here are the results. We found that only fifteen percent of our students exercise every day. Forty-five percent exercise four to six times a week.,1,2,3,Twenty percent exercise only one to three times a week. And twenty percent do not exercise at all！ We all know that many students often go online, but we were surprised that ninety percent of them use the Internet every day. The other ten percent use it at least three or four tim

3、es a week. Most students use it for fun and not for homework. The answers to our questions about watching television were also interesting. Only two percent of the students watch TV one to three times a week. Thirteen percent watch TV four to six times a week. And eighty-five percent watch TV every day！,4,Although many students like to watch sports，game shows are the most popular. It is good to relax by using the Internet or watching game shows，but we think the best way to relax is through exerc

4、ise. It is healthy for the mind and the body. Exercise such as playing sports is fun，and you can spend time with your friends and family as you play together. And remember，“Old habits die hard.” So start exercising before its too late！,5,6,7,8,9,10,15,20,20,45,10,90,13,2,85,Here are the results.这是调查结果。,考向一【重点】,知识点,1,Here are the results.是倒装句，正常语序是The results are here.。 eg：Here is my book.这是我的书。,拓展,以here，there，out，up，down等副词开头的句子常用倒装结构。当主语为名词时，句子结构为：副词谓语动词主语（名词）；当主语为代词时，句子不倒装，其结构为：副词主语（代词）谓语动词。,考

5、向二【重点】,result意为“结果；后果”，the result（s） of.意为“的结果” eg：The result of the examination was quite unexpected. 考试的结果完全出乎意料。,拓展【难点】,as a result是一个习惯短语，意为“因此，结果”。 eg：He didnt practice， and as a result he lost. 他没有练习，结果输了。,eg：Here comes the bus.公共汽车来了。 Here he comes.他来了。,开门见山法：本篇文章第一段开门见山地指出文章的主要内容，起到了统领全文、开启下文的作用。,知识点,2,percent /psent / n.百分之,知识点,考向一,3,percent单复数同形。与数词连用时，数词应置percent之前。 eg：twenty percent 百分之二十,考向二,percent of后接名词作主语时，of后的名词如果为不可数名词或单数可数名词，谓语动词用单数形式；若为可数名词复数形式，则谓语动词用复数形式。 eg：65 percent of t

6、he children play computer games. 百分之六十五的孩子玩电脑游戏。,典例,Sixty percent of the water in the lake_ clean and clear now. A. are B. is C. was D. were,【点拨】本题用主谓一致法。因为water为不可数名词，故谓语动词用单数形式。句意为“这湖中百分之六十的水现在是干净清澈的。”表示现在的状况，故用一般现在时。,B,(高频)surprised /sprazd / adj.惊奇的； 惊讶的,知识点,考向一,4,【辨析】surprised与surprising,考向二,surprised 形容词，意思是“感到惊讶的”。常用结构：be surprised at sth. 对某事感到惊讶， be surprised to do sth. 对做某事而感到惊讶。 eg: We were surprised at his arrival. 我们对他的到来感到吃惊。 She was surprised to find her handbag. 她对能找到她的手提包感到惊讶。,拓

7、展,surprise 表示“惊讶”时，是不可数名词。常用短语：in surprise “惊讶地”，常位于动词之后作状语，表示方式。 to ones surprise“让某人惊讶的是”，它对全句进行解释或说明，表示说话人对上文的看法或态度，一般放在句首。 surprise 表示“令人惊奇的事”时，是可数名词。 eg: He looked at me in surprise. 他吃惊地看着我。 To our surprise，the boy won the prize. 使我们惊奇的是这个男孩获奖了。,典例,When he heard the _ news，he was very _ surprising; surprised B. surprised; surprising C. surprised; surprised D. surprising; surprising,【点拨】考查形容词辨析。句意：当听到这令人 惊讶的新闻时，他感到非常惊讶。,A,although /:lu / conj.虽然；尽管；即使,考向,知识点,5,although 引导让步状语从句。although 引导的

8、从句放在主句前后均可。 eg：Although he was tired，he didnt stop to have a rest. He was tired，but he didnt stop to have a rest. 尽管他累了，但他没有停下来去休息。,特被提醒,although 的几不： although 不能指假设的情况；although 不能作并列连词；although不能作副词，放在句尾。,典例,“A white elephant” means some-thing that is useless, _ it may cost a lot of money. (广东) A. unless B. until C. since D. although,【点拨】本题用语法判定法解题。unless 除非，until 直到，since 自从，although 尽管。“A white elephant”指的是一些“不经常用的东西”尽管“它有可能花不少钱。”表示让步用although。,D,It is good to relax by using the Internet or w

9、atching game shows，but we think the best way to relax is through exercise. 通过使用网络或观看游戏类节目放松是好的，但我们认为通过锻炼的方式放松是最好的。,知识点,6,考向一【重点】,本句是由but连接的并列复合句。前一个分句中，It是形式主语，真正的主语是动词不定式短语to relax by using the Internet or watching game shows。该句型结构为It isadj.（for sb.） to do sth. eg：It is easy for me to play basketball. 打乒乓球对我来说是容易的。,考向二【重点】,by为介词，意为“通过；靠”，此处表示方法、手段，后接名词、代词或动词的 -ing形式。 eg：He has to do all the work by hand. 所有的工作他都要靠手工完成。 You can practice soccer by joining a sports club. 你可以通过加入一个运动俱乐部来练习足球。,拓展【难点】,（1）by交通工具（by后不加冠词），意为“乘/驾/”。 eg：I go to work by bike every day. 我每天骑自行车上班。 （2）by时间，意为“到时（为止）；在以前”，by now到目前为止。 eg：I must go to bed by ten oclock. 我必须在10点之前上床睡觉。 You should know the truth by now. 现在你应该知道真相了。 （3）by地点，意为“在旁边”。 eg：We live by the sea. 我们住在海边。,考向三,through /ru: /prep.以，凭借，穿过,【辨析】through与across,eg: She walked through the for

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