1、Unit 8 General ScienceWork and PowerWork 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
2、 the woman doing?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 acco
3、rding to the text.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 yes
4、terday prevented us(from)coming.everyday:adj.“日常的,平常的”,作定语every day:every day:名词词组,名词词组,“每天每天”作状作状语语3.In the direction of 沿着的方向 eg.She turned in the direction of the the park.4.That is to say.也就是说 eg.He is a good student;that is to say,he gets good grades in school.5.数学符号在英语中的表达:“=”equal;be equal to
5、;is;make “”times;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 “为了,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 申请9.as:“当的时候”,引导时间状语从句,与相近,强调两个动作同时
6、发生,或某事一发生,另一事立即发生。eg.As she sang,the tears ran down her checks.10.Work out:“算出,解出”11.Be measured in:以单位计算”Practice1.Reading Comprehension2.Language StudyHomeworkRead the text fluently编后语 同学们在听课的过程中,还要善于抓住各种课程的特点,运用相应的方法去听,这样才能达到最佳的学习效果。一、听理科课重在理解基本概念和规律 数、理、化是逻辑性很强的学科,前面的知识没学懂,后面的学习就很难继续进行。因此,掌握基本概念
7、是学习的关键。上课时要抓好概念的理解,同时,大家要开动脑筋,思考老师是怎样提出问题、分析问题、解决问题的,要边听边想。为讲明一个定理,推出一个公式,老师讲解顺序是怎样的,为什么这么安排?两个例题之间又有什么相同点和不同之处?特别要从中学习理科思维的方法,如观察、比较、分析、综合、归纳、演绎等。作为实验科学的物理、化学和生物,就要特别重视实验和观察,并在获得感性知识的基础上,进一步通过思考来掌握科学的概念和规律,等等。二、听文科课要注重在理解中记忆 文科多以记忆为主,比如政治,要注意哪些是观点,哪些是事例,哪些是用观点解释社会现象。听历史课时,首先要弄清楚本节教材的主要观点,然后,弄清教材为了说明这一观点引用了哪些史实,这些史料涉及的时间、地点、人物、事件。最后,也是关键的一环,看你是否真正弄懂观点与史料间的关系。最好还能进一步思索:这些史料能不能充分说明观点?是否还可以补充新的史料?有无相反的史料证明原观点不正确。三、听英语课要注重实践 英语课老师往往讲得不太多,在大部分的时间里,进行的师生之间、学生之间的大量语言实践练习。因此,要上好英语课,就应积极参加语言实践活动,珍惜课堂上的每一个练习机会。2022-10-22最新中小学教学课件15thank you!2022-10-22最新中小学教学课件16