2018年秋九年级英语上册Unit5LookintoScienceLesson25Let’sDoanExperiment导学课件（新版）冀教版.ppt

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1、Lesson 25 Lets Do an Experiment!,课前自主预习,课堂互动探究,Unit 5 Look into Science,课前自主预习,Lesson 25 Lets Do an Experiment!,correctly,correct,method,force,实验;试验,广口瓶; 罐子,倒出； 倾倒,上部； 上边,科学的,science,Lesson 25 Lets Do an Experiment!,雨衣,压力， 压强； 挤压,得出结论， 断定， 推断出,conclusion,fillwith,do an experiment,coverwith,turnupsid

2、e down,Lesson 25 Lets Do an Experiment!,takeoff,对有把握,涌出,科学方法,get,wet,theory,which,Lesson 25 Lets Do an Experiment!,is,correct,the,scientific,method,so,am,sure,of,Lesson 25 Lets Do an Experiment!,that,takes,off,enough,strong,to,conclude,Lesson 25 Lets Do an Experiment!,stronger,than,课堂互动探究,词汇点睛,1 cor

3、rect adj. 正确的；恰当的,观察 Lets test which theory is correct. 让我们测验一下哪种理论是正确的。 We must make sure that things are done correctly without mistakes. 我们必须确保事情做得准确无误。,Lesson 25 Lets Do an Experiment!,探究 correct的副词形式是_，意为“_”。,Lesson 25 Lets Do an Experiment!,拓展 correct 还可用作动词，意为“改正；纠正”。 Can you help me correct

4、the mistake that you find? 你能帮我改正你发现的错误吗？,correctly,正确地,活学活用,12016无锡 To my surprise, the 3yearold boy can spell all those words _(正确地),Lesson 25 Lets Do an Experiment!,correctly,2 method n. 方法；办法,观察 Thats called the scientific method. 那被叫作科学方法。,Lesson 25 Lets Do an Experiment!,辨析 method, way与means,L

5、esson 25 Lets Do an Experiment!,Lesson 25 Lets Do an Experiment!,Its the best method of working out the maths problem. 这是算出那道数学题最好的方法。 The good way to keep healthy is to take more exercise. 保持健康的好方法就是多锻炼。 His money wasnt earned by honest means.他的钱来路不明。,2老师正在给我们演示一种新的书写方法。The teacher is showing us _

6、_ _ _ _,Lesson 25 Lets Do an Experiment!,a,new,method,of,writing,3 force n. 力量 v. 迫使；强迫,观察 The force of the air keeps the water in the jar. 空气的力量使水留在广口瓶里。 The truck was forced to stop for repairing. 那辆卡车被迫停下来修理。,Lesson 25 Lets Do an Experiment!,Lesson 25 Lets Do an Experiment!,探究(1)force用作名词时，是_(可数/

7、不可数)名词。 (2)force 还可用作_词，意为“_”，常用于被动结构。force 还可以接动词不定式或形容词、副词、介词短语充当补足语的复合宾语。,不可数,动,迫使，强迫,3由于战争，他们被迫离开自己的国家。They _ _ to leave their own country because of the war.,Lesson 25 Lets Do an Experiment!,were,forced,句型透视,1 I cover the top with a piece of cardboard and hold it there.我用一张硬纸板盖住瓶口并抵住它。,Lesson 2

8、5 Lets Do an Experiment!,探究 (1)cover在本句中为_动词，意为“覆盖”。cover sth._ sth.意为“用某物盖住某物”，常用被动形式：sth. be covered with sth.。 (2)a piece of 意为“一片；一块”。a piece of 后面接_名词，表示数量；如果表示的数量超过“一”，则_用复数形式。谓语动词根据piece 的单复数而定。 Mary gave the boy two pieces of cake. 玛丽给了这个男孩两块蛋糕。,Lesson 25 Lets Do an Experiment!,及物,with,不可数,p

9、iece,Lesson 25 Lets Do an Experiment!,拓展表示不可数名词的数量时，要用“数词/冠词量词of不可数名词”结构，如a glass of water一杯水，two bottles of juice两杯果汁。,活学活用,1(1)2017达州 _ of the land in that town_ covered with trees and grass.ATwo fifth; is BTwo fifth; areCTwo fifths; is DTwo fifths; are,Lesson 25 Lets Do an Experiment!,C,(2)2017南充

10、 Are you thirsty?Yes, please give us_Athree bottle water Bthree bottle of waterCthree bottles of water Dthree bottles of waters,Lesson 25 Lets Do an Experiment!,C,2 Then I turn the jar upside down and take my hand off the cardboard. 然后我将广口瓶倒置并将我的手从硬纸板上拿开。,Lesson 25 Lets Do an Experiment!,探究 (1)turnu

11、pside down意为“把翻转；倒过来”，相当于词组_。 Turn your book upside down and recite the text. 把你的书翻转过来并背诵那篇课文。,turn over,Lesson 25 Lets Do an Experiment!,(2)takeoff意为“把从拿开”。take off还可译为“(飞机)起飞；脱下(衣服)”。 He took his shoes off and sat on the bed. 他脱掉鞋，坐到了床上。 The plane took off an hour late. 飞机起飞晚了一个小时。,2(1)你不能颠倒事实。You

12、 cant _ the facts _ _(2)2017十堰 中国大飞机5月5日在上海浦东国际机场起飞。The C919_ _in Shanghai Pudong International Airport on May 5.,Lesson 25 Lets Do an Experiment!,turn,upside,down,took,off,3 I am so sure of my theory that Brian can do the experiment over your head and I know you wont get wet. 我对我的理论很有把 握，布莱恩能在你的头上做

13、实验，而且我知道你不会被淋湿。,Lesson 25 Lets Do an Experiment!,探究 (1)be sure of/about意为“相信；对有把握”，表示对某事(物)的看法。其后常接_词、_词或_词。 I am sure of winning the game. 我有把握赢得这次比赛。,名,代,动名,Lesson 25 Lets Do an Experiment!,(2)本句中that引导的从句用来解释说明句中的名词_。 He told me the news that his uncle would come back soon. 他告诉我他叔叔很快要回来的消息。,拓展 (1

14、)be sure to do sth.意为“务必做某事；一定要做某事”。 (2)be sure (that)意为“肯定；确定”，主句的主语必须是人。,theory,3. 他不清楚她的名字。He _ _ _ her name.,Lesson 25 Lets Do an Experiment!,isnt,sure,of,探究该结构的基本形式是“形容词/副词enough to_”，意为“足够可以”。,4 It is strong enough to hold the water.它足够强大，可以将水托住。,Lesson 25 Lets Do an Experiment!,动词原形,拓展 “形容词/副

15、词enough to”可以和“sothat”引导的结果状语从句进行同义句转换，如果是否定句，则可以和“tooto”句式进行同义句转换。,4(1)2016丹东 他年龄够大了，可以上学了。(翻译句子)_(2)2016巴中改编 Tina was so careless that she made lots of mistakes in the exam.(改为同义句)Tina wasnt _ _to make lots of mistakes in the exam.,Lesson 25 Lets Do an Experiment!,He is old enough to go to school./He is so old that he can go to school.,careful,enough,