冀教版九年级上册Lesson 26 Keep the Candle Burning授课ppt课件

这是一份冀教版九年级上册Lesson 26 Keep the Candle Burning授课ppt课件，共24页。PPT课件主要包含了candle，lighter，matches，putin，puton，fillwith，light，letburn，examine，基数词等内容，欢迎下载使用。
Say hw t d the experiment.
a candle hlder 烛台
/ˈhəʊldə/ n. 支托物；持有者
a shallw plate
shallw /ˈʃæləʊ/ adj. 浅的
hlder n. 支托物；持有者shallw adj. 浅的lighter n. 打火机；点火器match n. 火柴examine/ ɪɡˈzæmɪn / v. 检查xygen /ˈɒksɪdʒən/ n. 氧气
Read and put the sentence in the right rder. Light the candle. Examine the water in the jar. What can yu see? Carefully put the jar ver the candle until the tp f the jar rests n the dish . Put the candle in the candle hlder. Fill the dish half full with water. Let the candle burn fr tw r three minutes. Put the candle hlder n the dish.
Read and answer the questins.1. Hw much water shuld we fill the dish?2. Hw lng shuld we let the candle burn?3. Where shuld we put the jar?4. What is happening?
Half full f the dish.
Tw r three minutes.
Put it ver the candle until the tp f the jar rests n the dish.
The water inside the jar rises.
Read and think abut.1. Hw far des the water rise?2. Why des the water rise?
One fifth f the jar.
When the candle stps burning, it has used up all the xygen in the jar. S the air pressure utside the jar is strnger than that in the jar, and the frce f the air utside makes the water inside rise.
carefully put…ver
1. a lighter r matches打火机或火柴 match ① n. 火柴，复数形式为matches。 a bx f matches 一盒火柴 ② n. 比赛，复数形式matches。 three basketball matches 三场篮球赛 ③ v. 相称；相配 Yur tie matches yur suit. 你的领带和你的套装相配。
2. Examine the water in the jar. 检查广口瓶里的水。 examine v. ① 检查。 后接名词或代词作宾语。 The dctr examined the patient. 那位医生检查了那位病人。 ②考核，测验 Our teacher will examine us n histry. 我们老师将测验我们历史。
【拓展】examinatin（examine的名词形式）检查，考试 All patients had a cmplete physical examinatin. 所有的病人都进行了全面体检。 have an entrance examinatin 参加入学考试
3.When the candle stps burning, it has used up all the xygen in the air. 当蜡烛停止燃烧时，它用尽了空气中所有氧气。 use up 用光；用尽（=run ut f） 其主语往往是人，宾语往往是被用光的物。 Jim used up his mney t buy the cmputer. 吉姆为了买电脑花光了所有的钱。
【注意】use up为“动词+副词”结构，名词作宾语时，位于up前后都可，人称代词作宾语时，须放于use 与up之间。 There is n paper. We have used it up. 没有纸了。我们已经用完了。类似的还有：think ver, lk up, put up, eat up, take away, …
4. Because abut ne fifth f the air is made up f xygen … 因为空气中氧气的含量大约占五分之一…… （1）分数的表达
1/3 ne third 1/6 ne sixth3/4 three furths 2/5 tw fifths
【注意】 “分数+f+名词”作主语时，谓语动词的单复数由f 后名词的形式而定。 Abut tw thirds f the water in the river cmes frm Yi River.这条河三分之二的水来自沂河。Abut tw thirds f the children like playing cmputer games.三分之二的孩子喜欢玩电脑游戏。
(2) be made up f … 由……组成 表示由多种成分、团体、成员或单位等组成，并强调整体的构成或组成。 The team is made up f 5 dctrs and 10 nurses. 这个队由5名医生和10名护士组成。 【拓展】make up 组成，构成，形成 Wmen students make up 56% f the student numbers. 女生占学生人数的56%。
5. Read, find and translate.
fill … with sth. n the dish put … ver sth. the tp f stp ding sth. use up ne fifth f … be made up f …
用某物装满……在盘子里把……罩在某物上面……顶部停止做某事用光，用完……的五分之一由……组成
Wrk in grups. Talk abut an interesting experiment yu d.
单项选择。1. _____ f the students in ur class ___ _ ging t summer camp in Beijing next week. A. Tw fifths; is B. Secnd fifths; are C. Secnd fifths; is D. Tw fifths; are2. If success is a gate, the rad twards it must _______difficulties. A. be made f B. be made frm C. be made up f D. be made by
3. We have ______ all the water. Please give us sme mre. A. turned up B. used up C . eaten up D. set up4. Please fill the jar ______ il. A. f B. with C. int D. ver5. We shuld stp _______ dispsable chpsticks(一次性筷子) and remember t prtect the frest. A. use B. t use C. used D. using