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1、First ,_the candle _the candleholder. Then, _the candleholder _the dish. Third, _the dish _water . Fourth,_ the candle . Fifth, _the candle _for two or three minutes . Sixth ,carefully _the jar _the candle until the top of the jar _on the dish. What observations can you make?,put,put,in,in,fill,half
2、 full of,light,let,burn,put,over,rests,The candle stops burning and the water rises up.,How do we do the experiment?,Correct the mistakes: There are lots of matchs in the small box. Can you let my uncle laughing? Youre very ill, so you must stop to smoke. Fill the dish half fill of water. There is a
3、bout one five oxygen in the air. There are about two third students in the classroom. 7. I used out my money. Can you lend me some?,matches,_,_,laugh,_,smoking,one - fifth,_,full,_,_,two - thirds,_,up,用所给词的正确形式填空。 1.The _(science) is doing the experiment. 2.Dont keep me _(wait) for long. 3.They stop
4、ped _(play) football when it began to rain. 4.May is the _(five) month of a year. 5.What _(observe) can you make after doing the experiment? 6.Now Lily is _(interest) in maths. 7.I think science is _(interest). 8.Air is _(heavy) than I think.,scientist,waiting,playing,fifth,observation,interested,in
5、teresting,heavier,用所给单词的正确形式填空。 You are very tired. Youd better stop _ (have) a rest. 2. What do you use to make a candle _ (burn)? 3. You should put the jar over the candle _ (careful). 4. What _ (observe) can you make?,to have,burn,carefully,observation(s),5. Please cut the apple into _ (half). 6.
6、 He _ (light) a candle and the room was bright. 7. _ (two), ask the students to guess what will happen. 8. He kept the candle _ (burn) for two hours. 9. Its time _ (play) basketball. 10. What about _ (go) for a walk?,halves,lighted / lit,Second,burning,to play,going,1.玛丽准备做实验。 Mary is going to _ _ _
7、. 2.把你的手从杯子上拿开。 _your hand _the cup. 3.马路上盖着厚厚的树叶。 The road _ _ _thick leaves. 4.当你用完这盒颜料时 请告诉我。 When you _ _ this box of paints,please tell me. 5.我们班学生的三分之二是男生。 _of the students in our class _boys. 6.不要让门开着，我有点冷。 Dont _the door _.I feel a little cold. 7警察正在追捕一名杀人犯。 The police are _ _ a murderer.,do
8、 an experiment,Take off,was covered with,use up,Two-thirds,are,keep open,hunting for,Lesson 31,Surprise Your Friends!,Teaching aims,句型 It pushes down on us from above It also pushes down on us from below 交际用语: First ,you need get ready Next take your hand off,Difficult and important points,1 一般将来时的构
9、成和用法 一般将来时，将要发生事 谓语不一般，will加动原 要变疑问句，will放在主语前 否定句也不难，will后面not添 2be going to +v 表示将来,Listen carefully with the following qustions:,What did Danny describe in his e-mail?,Prepare an interesting experiment you have tried before or have seen in your science books. Do it and describe it to your class.,
10、Lets do it!,Language points,Do you want to surprise your friends? 你想让你的朋友大吃一惊吗？ surprise本句中的是动词，意思是“使惊奇, 使感到意外”。例如： It surprised me to see so many people here. 在这看到这么多人使我感到意外。 surprise还可用作名词，意思是 “惊奇，惊讶，诧异，意外之事(物)”。例如： What a surprise! 多么令人惊奇的事啊！,It also pushes up on us from below. 它(空气)也从下往上(给我们一种)推
11、(力)。 push up on与push down on 向上托举 向下压 push up 向上推，举 He pushed hard up on the box. 他用力向上推那个箱子。 Tom pushed down on my shoulder. 汤姆向下按我的肩膀。,1. Isnt he a teacher? _,_.He works in a hospital.,A. Yes ,he is B.No,he isnt C.Yes ,he isnt D.No,he is,2.Comrade Lei Feng was always ready _help others ,He is our
12、example.,A. or B. to C. in D. at,3.Could you _?Ill see whether he is in .,A.hold up B.Hold down C.hold back D.hold on,4.Cover the glass _the cardboard .,A. in B to C.for D.with,5.Take your hand _,A.off B.on C.for D.of,B,B,D,A,D,1. Whose glass is full _ water? 2. There is a stone bridge _ the river.
13、3. We often do experiments _ chemistry class. 4. Please cover the jar _ a piece _ cardboard. 5. _ our surprise, we all passed the exam.,of,over,in,with,of,To,用适当的介词填空。,heavy turn over take off surprise,1. Air is _ than we think. 2. Dont _ your coat, or youll catch a cold. 3. Mr. Read told us bad news. It _ us. 4. Be careful! Dont _ the glass _.,heavier,take off,surprised,turn,over,用所给单词或短语的适当形式填空。,Write an e-mail about an experiment to your friends.,Homework,Thank you.,