Lesson+25+课件++2024-2025学年冀教版九年级英语全册

D.put off it
A( )6.He is sure ________ his theory. Nobody can change his mind.
A．of
B．at C．with
D．for
C( )7.I won't force anybody ________ anything.
A．do
B．does C．to do
A．put off
B．shut off C．get off
D．take off
water will stay in the jar. Let's test which theory is correct.
Brian: Good idea, Jenny. That's called the scientific
method. correct [kəˈrekt] adj. 正确的；恰当的 scientific [ˌsaɪənˈtɪfɪk] adj. 科学的
Jenny: We have discovered that the air pressure helps the
cardboard hold the water in the jar.
Brian: Right. What do you conclude. Danny?
Danny: I conclude that air is stronger than I thought.
脱下
倾泻出来 pour out 科学方法 scientific method 空气的力量 the force of the air 空气压力 the air pressure
I think the foor will get wet.
get 做系动词，表示“变得”；后加形容词。
短语总结：
get up 起床
get over 克服，解决
get back 回来
get to... 到达...
get away 离开，逃离 get ready for sth. 为...做好准备
get on/off 上/下车（船） get on well with 和...相处融洽
B( )1.—Why does the earth look blue in space?
D.much difficult
C( )3.Can you help me
the bottle upside down?
A.get
B.become
C.turn
D.grow
A( )4. —Did you notice
in his office?
—Yes, he was going over our homework.
Jenny: I think the cardboard will hold the water.
Danny: I don't think so. pour [pɔː(r)] v. 倒出；倾倒 Jenny: You think the water will pour out,Danny. I think the
conclude [kənˈkluːd] v. 得出结论；断定；推断出
experiment [ɪkˈsperɪmənt]
n. 实验；试验；尝试
jar [dʒɑː(r)] n. 广口瓶；罐子
upside [ˈʌpsaɪd] n. 上部；上边 pour [pɔː(r)] v. 倒出；倾倒
correct [kəˈrekt] adj. 正确的；恰当的 scientific [ˌsaɪənˈtɪfɪk] adj. 科学的 method [ˈmeθəd] n. 方法；办法
做实验；做试验 do an experiment
把某物倒过来 turn sth. upside down
把某物从...拿开 take sth. off sth. take off 确信（某事） be sure (of sth.) 确信做某事 be sure to do sth. 调查；研究 look into sth.
raincoat [ˈreɪnkəʊt] n. 雨衣
Jenny: Brian, take your hand off the cardboard. Danny: No! (Danny closes his eyes tightly, and Brian takes his hand off the cardboard. The water stays in the jar.) Jenny: See, Danny! Danny: How is that possible?
Brian: Let's do an experiment. I fill a jar with water.I cover the top with a piece of cardboard and hold it there. Then I turn the jar upside down and take my hand off the cardboard. Can you guess what will happen? Danny: I think the foor will get wet. We should do this experiment outside,Brian.
If you hold a jar that is filled with water upside down,
what will happen? jar [dʒɑː(r)] n. 广口瓶；罐子 upside [ˈʌpsaɪd] n. 上部；上边 upside down 颠倒
Danny, Jenny and Brian are in the lab.
look into 考察；调查；研究；向...里面看
experiment [ɪkˈsperɪmənt] n. 实验；试验；尝试
Lesson 25 Let's Do an Experiment!
do an experiment 做实验；做试验
What kinds of experiments have you done in science class?
D．doing
B( )8.You can work out the maths exercise in two different ________.
A．plans
B．methods C．answers D．questions
D( )9.—A terrible smell, Ted!
—Sorry, Mum. I'll ________ my socks and put them in the washer.
—Because most of the earth′s surface
by water.
A.covers B.is covered C.cover
D.are covered
A( )2 —Is French easy to learn? —No, I think it′s
than English.
A.more difficult B.most difficult C.difficult
method [ˈmeθəd]
n. 方法；办法
Jenny: I am so sure of my theory that Brian can do the experiment over your head and I know you won't get wet. Danny: Well, let's try it! Brian: Are you ready, Danny? Danny: No! Wait! (He puts on a raincoat and sits down.) Now I think I'm ready.
A.what Mr. Li was doing B.how was Mr. doing D.what Mr. Li is doing
A( )5.This book takes up too much room. Please
.
A.take it off B.take off it C.put it off
force [fɔːs]
n. 力量 v. 迫使；强迫
Brian: The force of the air keeps the water in the jar. It is
strong enough to hold the water.
Danny: Wow! pressure [ˈpreʃə(r)] n. 压力；压强；挤压 Brian: So what have we discovered?
raincoat [ˈreɪnkəʊt] n. 雨衣
force [fɔːs]
n. 力量
v. 迫使；强迫
press [pres] v. 按；挤压 pressure [ˈpreʃə(r)] n. 压力；压强；挤压
conclude [kənˈkluːd] v. 得出结论；断定；推断出
conclusion [kənˈkluːʒn] n. 结论；