Unit 5 Lesson 25 Let’s Do an Experiment课件 2024-2025学年冀教版英语九年级全册

Lesson 25 Let's Do an Experiment Unit 5 Look into Science The scientist is doing an experiment with the scientific method. experiment n.实验 /ɪkˈsperɪmənt/ /ˌsaɪənˈtɪfɪk/ /ˈmeθəd/ adj. 科学的 n.方法；办法 At last , he concluded the correct conclusion. /kənˈkluːd/ v. 得出结论；断定 /kəˈrekt/ adj. 正确的；恰当的 It is a It is the jar’s He is ing water. pour /pɔː(r)/ v.倒出；倾倒 upside /'ʌpsaɪd/ n.上部；上边 jar. /dʒɑː/ n. 广口瓶；罐子 We wear s on a rainy day. raincoat /'reɪnkəʊt/ n. 雨衣 He has much . force /fɔ:s/ n.力量 pressure /ˈpreʃə/ n. 压力，压强；挤压 He always s me to do things I don't like, which gives me a lot of . v.迫使 /fɔ:s/ force experiment /ɪk‘sperɪmənt/ jar /dʒɑː/ upside /'ʌpsaɪd/ pour /pɔː(r)/ correct /kə'rekt/ scientific /ˌsaɪən'tɪfɪk/ method /'meθəd/ raincoat /'reɪnkəʊt force /fɔːs/ pressure /'preʃə/ conclude /kən'kluːd/ n. 实验；试验 n. 广口瓶；罐子 n. 上部；上边 v. 倒出；倾倒 adj. 正确的；恰当的 adj. 科学的 n. 方法；办法 n. 雨衣 n. 力量 v. 迫使；强迫 n. 压力；压强；挤压 v. 得出结论；推断出 In which subject do you often do experiments? Which experiment do you like best ? WHO WHERE WHAT Jenny, Danny and Brain In the lab. Do an experiment. How to do an experiment? The Scientific Method Worksheet Question: What is the problem? _________________________________________ Theory(理论): Your best guess. _________________________________________ Materials: Steps: _________________ 2. ___________________ 3. _________________ 4. ___________________ Results/ Conclusions(结论): __________________________________________ Question: _________________________________________________________ Theory: Danny： Jenny： Materials： Steps: ______________________________________________________ 2. ______________________________________________________ 3. ______________________________________________________ 4. ______________________________________________________ Results/ Conclusions(结论): ________________________________________________________ Hold a jar that is filled with water upside down, what will happen? The water will pour out. The water will stay in the jar. jar, water, cardboard Fill the glass jar with water. Cover the top with a piece of cardboard and hold it there. Turn the jar upside down. Take the hand off the cardboard. The air pressure helps the cardboard hold the water in the jar. Question: _________________________________________________________ Theory: Danny： Jenny： Materials: (list)： Steps: ______________________________________________________ 2. ______________________________________________________ 3. ______________________________________________________ 4. ______________________________________________________ Results/ Conclusions(结论): ________________________________________________________ Hold a jar that is filled with water upside down, what will happen? The water will pour out. The water will stay in the jar. jar, water, cardboard Fill the glass jar with water. Cover the top with a piece of cardboard and hold it there. Turn the jar upside down. Take the hand off the cardboard. Say how to do the experiment. Fill the jar with water. Cover the top with a piece of cardboard. Turn the jar upside down and hold it there. take the hand off the cardboard. The air pressure helps the cardboard hold the water in the jar. Try to do the experiment in this lesson yourself. Task tips: What happens when you use less water, more water, wet cardboard, or different kinds and sizes of jars? 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纸板上拿开。 (1) turn...upside down 把……翻转；倒过来(=turn over) upside down正面朝下 right side up 正面朝上 (2) take …off… 把……从……拿开 【拓展】take off 摘下; 脱下; (飞机等)起飞。 We think the water will pour out, Danny. 你认为水会流出来，丹尼。 pour out 涌出；倒出；使流出 【拓展】pour …into…把……倒进…… 把牛奶倒进瓶子里。 Pour the milk into the bottle. The force of the air keeps the water in the jar. 空气的力量让水待在广口瓶里。 force ① n. 力；力量 the force of… ……的力量 ② v. 迫使；强迫 force sb. to do sth. 迫使某人做某事 It’s impolite to force others to do something unpleasant. 迫使他人做令人不高兴的事情是不礼貌的。 It is the best ________ (方法) of working out the math problem. Let’s go to the lab and do the e _____________ to see what happens. 3. Turn the jar u _________down and we can see what will happen. The meaning of c__________ is the same as right. We should believe in the ____________(science) research. The __________(press) of water turns the wheel. method xperiment pside orrect scientific pressure 13113.162 $$