Lesson 25 课件 2024-2025学年冀教版九年级英语全册

Lesson 25 Let's Do an Experiment What is science? Can you explain? Please make it easy for my brain. It's about making obervations. Why do onions make me cry ? Why do clouds go by ? What keeps the birds in the sky ? That's just science. It's about matter--the universe. Why does a car stay on the road? Why is there green all over a road ? Why can't I carry a heavy load? That's just science. 观察 New words PART 01 an experiment n.实验，试验 jar n.广口瓶，罐子 upside n.上部，上边 pour v.倒出，倾倒 correct adj.正确的 scientific adj.科学的 method n.方法，办法 raincoat n.雨衣 force n.力量 v.迫使，强迫 pressure u.压力，强迫，挤压 conclusion n.结论，断定 PART 02 Reading 1.The top of the jar is covered with ________________. 2._______________can keep the water in the jar. 3.What did they discover from the experiment? ________________________________________________ 4.What does Danny conclude? ________________________________________________ 5.Then I turn the jar upside down and take my hand off the cardbord.(翻译) ———————————————————————— a piece of cardboard The force of air The air pressure helps the cardboard hold the water in the jar. Air is stronger than I thought. 然后我把罐子正面朝下并且把手从纸板拿走。 Key Points PART 03 1.Let's do an experiment. 让我们做个实验吧。 ①experiment n. 试验，实验 一个实验 an experiment experiments pl. 做实验：do/make/carry out an experiment 我们正在做一个物理实验。 We are _______________________a physical __________. ②v.做实验 experiment on/with sth. It's wrong to experiment on/with the animals. doing/making/carrying out experiment 2.Then I turn the jar upside down and take my hand off the cardbord. 然后我把广口瓶向下翻转过来，并把手从纸板处拿走。 turn...upside down =turn over 把...翻转/倒过来 把你的书翻过。 Turn your book upside down./Turn over your book. 与turn相关的短语： 代中原则 turn on 打开，发动 turn off 关掉，切断 turn up 调大，出现 turn down 关小，拒绝 turn into 变成，进入 turn around 转身，转变 3.Then I turn the jar upside down and take my hand off the cardbord. take...off... 把...从...拿开 你应该把你的玩具从桌子上拿开。 You should take your toy off the table. 拓展：take off还有什么意思呢？ 脱下；起飞；休息...时间 3.Then I turn the jar upside down and take my hand off the cardbord. The students in China take two months off in summer. Look. The plane is taking off now. He usually takes off clothes when he gets home. 休息...时间 起飞 脱下，摘下 4.You think the water will pour out,Danny. 你认为水会涌出来，丹尼。 pour v.倒出，倾倒 pour out 涌出，涌出 水从水龙头里流出。 Water poured out of the tap. pour out of 从...倒出来 pour...into... 把...倒进... 他往杯子里倒了一些水。 He poured some water into the bottles. 5.Let's test which theory is correct. 让我们检验一下哪个理论是正确的吧。 correct adj.正确的，恰当的 反义词： 副词： 我们应该用一种正确的方式来做实验。 Let's do an experiment in a correct way. 拓展：correct还有其他什么用法。 incorrect correctly correct v.改正，矫正 我们可以通过矫正错误的方式来取得进步。 We can make progress by correcting mistakes. 6.That's called the scientific method. 那被称为科学的方法。 ①scientific adj.科学的 science n.科学 scientist n.科学家 ②method n.方法，办法 a method of /for (doing) sth. （做）某事的方法 这是一个学英语的方法。 It's a method of/for learning English. 7.The force of the air keeps the water in the jar. 空气的压力使水留在了广口瓶里。 force [u.]力量，武力，暴力 The force of nature is huge. 没有人能够靠武力取胜。 Nobody can get trust by force. 拓展：force还有其他的词性么? 靠武力，强行 force v.迫使，强迫 force sb. to do sth. 迫使某人做某事 你不能迫使别人违反规则。 You can't force others to break the rules. 8.I conclude that air is stronger than I thought. 我总结空气要比我想象的更强大。 conclude v.总结 What can you conclude from this article? conclusion n.总结 make/draw a conclusion 做总结 我的老师总会在放学后做总结。 My teacher always makes a conclusion before school. Exercise PART 04 1.Jack finally makes a ______answer.It is right. 2.You can't f_____others to do what they don't like. 3.I think this is the best m ________to solve the problem. 4.Tony wants to do an e ___________ to test the theory. 5.I am too tired and feel too much _________(压力)on my mind. correct orce ethod xperiment pressure 6.--Be careful! Don't ______the water. --OK.I won't. A.pour into B.put out C.pour out D.put in 7.This model covers too much room.Hurry up! _____. A.take them off B.take it off C.take off it D.take off them C B 8.upside,jar,please,turn,up,down,the _____________________________________. 9.what,is,scientific,method,the ____________________________________? 10.pressure,the,is,concluded,report,that,air,stronge ____________________________________________. Please turn the jar upside down What is the scientic method The report concluded that the air pressure is stronge Thank You THANKS FOR YOUR WATCH null Other 61621.64 $$