語文版中職英語拓展模塊Unit 8General Scienceppt課件1[www.7cxk.net]

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1、Unit 8 General ScienceWork and PowerWarming UpAnswer the following three questions.1.Do you know how to read“3+4=7”in English?2.Can you explain Ohms Law in English?3.Are you interested in books on science in English?Lead inLets look at the two pictures:1.What is the man doing?2.What is the woman doi

2、ng?3.If a force of 2000N causes the weights to move 2 meters,how can you calculate the work done by the man?4.If a force of 80N can make the lawnmower move along straight line for a distance of 40 meters,what is the work done by the woman?Fast ReadingAnswer the following questions according to the t

3、ext.1.What is the definition of “work”?2.How do you calculate the amount of work done?3.What is the definition of 1 Joule?4.What is the definition of “power”?5.What is the definition of 1 watt?Language Points1.in everyday life 在日常生活中2.prevent sb(from)doing 阻止某人做某事 eg.The heavy rain yesterday prevent

4、ed us(from)coming.everyday:adj.“日常的，平常的”，作定語every day:every day:名詞詞組，名詞詞組，“每天每天”作狀作狀語語3.In the direction of 沿著的方向 eg.She turned in the direction of the the park.4.That is to say.也就是說 eg.He is a good student;that is to say,he gets good grades in school.5.數(shù)學(xué)符號(hào)在英語中的表達(dá)：“=”equal;be equal to;is;make “”tim

5、es;multiplied by “”divided by “+”plus;and;add “”minus eg.3*5=15 2+4=6 17-5=12 9/3=36.In order to+V原 “為了，以便”表目的 eg.Lets walk faster in order to keep warm.7.Adj n.high height long length strong strength deep depth wide width8.apply to 把施加到/添到 apply for 申請(qǐng)9.as:“當(dāng)?shù)臅r(shí)候”，引導(dǎo)時(shí)間狀語從句，與相近，強(qiáng)調(diào)兩個(gè)動(dòng)作同時(shí)發(fā)生，或某事一發(fā)生，另一事立即發(fā)生。eg.As she sang,the tears ran down her checks.10.Work out:“算出，解出”11.Be measured in:以單位計(jì)算”Practice1.Reading Comprehension2.Language StudyHomeworkRead the text fluently