Unit 4 Astronomy the science of the stars(Period 5 Using language Extensive reading).pdf

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1、精品教案设计资料Unit 4 Astronomy the science of the stars(Period 5Usinglanguage Extensive reading)Unit 4 Astronomy:the science of the starsPeriod 5 銆Using language:Extensive reading鏁欐潗鍒嗘瀽 This is the fifth teaching period of this unit.As usual,the teacher should check students鈥?homework and offer chances fo

2、r them to goover what they learned in the last period at the beginning of the class.Then lead inthe new lesson.In this period,the teaching emphasis will be put on developingstudents 鈥?reading ability by reading extensively.We will deal with two parts:AVISIT TO THE MOON in Using language on Pages 30-

3、31 and CAUGHT BY A BLACKHOLE in Reading Task on Page 66.While reading,get students learning to use somereading strategies such as skimming,scanning,and so on.As to new words andphrases,the teacher can first find those students feel most difficult and help them tounderstand.That鈥檚 enough here.The rea

4、ding passage A VISIT TO THE MOON is ascience fiction story which imagines what it might be like if an astronaut visited themoon.The purpose of science fiction writing is to combine facts with a story to makestudents interested and excited about travel in space.It is also to stimulate awe andwonder i

5、nto the vastness of space.As this reading uses the information studentshave gained from the listening,the teacher can first ask some students to retell thelistening text to lead in the topic and then ask students to read the passage and dosome comprehending exercises.While checking their answers wit

6、h the whole class,deal with language problems students can鈥檛 work out by themselves.This is anextensive reading lesson,so the teaching steps should be simple.As to the passageCAUGHT BY A BLACK HOLE,it is to continue the above story.The astronomers in thestory visit a place in space,which seems impos

7、sible for people to reach,the鈥渂精品教案设计资料lack hole 鈥?It is to help students imagine what it is like near a鈥渂 lack hole 鈥?Ask students to read through the passage and try to know more about astronomyand gravity.At the end of the class,ask students to retell the two passages.In orderto arouse students鈥?

8、interest,the teacher can hold a competition among them.鏁1.Develop students鈥?reading skills by extensive reading.2.Letstudents read and understand the two passages.1.Enable studentsto learn to use reading strategies such as skimming,scanning,and so on.2.Getstudents to understand the science fiction s

9、tories in this unit.鐭1.Get students to learn some useful new words and expressions in thispart:spaceship,pull,float,mass,cheer up,now that,break out 2.Get students toread the science fiction stories.1.Develop students鈥?reading skillsby extensive reading and enable them to learn how to use different

10、reading skills toread different reading materials.2.Have students learn to use the useful new wordsand expressions correctly.3.Enable students to understand the passages and knowmore about astronomy and gravity.1.Stimulate students鈥?interestin astronomy and space travel.2.Develop students鈥?sense of

11、group cooperationand teamwork.鈫扴 tep 1 Revision 1.Check the homework exercises.2.Ask somepairs of students to come to the front and act out their dialogue to review theexpressions of giving instructions.3.Have some students talk about Isaac Newton,Albert Einstein and Stephen Hawking as well as their

12、 ideas on gravity.鈫扴 tep 2Warming up Let students to brainstorm the following questions:What country firstsent people into space?How many countries have succeeded in sending people intospace so far?Who first landed on the moon?Who is the first Chinese astronaut to gointo space?Do you want to visit t

13、he moon?鈫扴 tep 3 Reading 1.Ask students toread the passage and then describe the three ways in which gravity changed for LiYanping and how his weight changed.1)Write down the three ways in which gravity精品教案设计资料changed for Li Yanping.The way gravity changed Left the earth In space On the moonSuggeste

14、d answers:The way gravity changed Left the earth The gravity became verystrong.In space The gravity disappeared.On the moon The gravity became very light.2)His weight changed three times,too.Now write them down.How his weight changed Left the earth In space On the moonSuggested answers:How his weigh

15、t changed Left the earth He became very heavy.In space He had noweight and could float around like a feather.On the moon He was about one-sixth ofhis weight on the earth.2.Ask students to read the passage aloud to the tape andunderline all the useful expressions or collocations in the passage.Let st

16、udents readthem aloud and copy them down in their exercise book after class as homework.Tryto keep them in mind.Collocations:be lucky enough to do,have a chance,make atrip into space,explain sth.to sb.,the force of gravity,be off,the pull of the earth鈥檚 gravity,fall back to the earth,fall to the gro

17、und,too far from the earth,as if,at all,get close to,cheer up,come on,less than,down the steps,step forward,twice as faras,fall over,a bit of,now that,after a while,get the hang of,break out,on theoutside of,be pushed into鈫扴 tep 4 Important language points 1.Before we left,LiYanping explained to me

18、that the force of gravity would change three times on ourjourney and that the first change would be the most powerful.鍦惎绋嬩互鍓?鏉庡溅骞冲悜鎴戣鏀瑰彉,?鍙瓙涓璽hat the forceof gravity would change three times on our journey and that the first change wouldbe the most powerful璇峞 xplainthatthat?The girls told him(that)t

19、hey were?浣滃姩on a train trip across Canada and that they had only one day in Montreal.精品教案设计资料,濂逛滑涔樼伀杞潵鏃呮父,瑕佹绌垮姞鎷垮,鍦挋鐗瑰埄灏斿緟涓澶?I understand not only(that)you have studied Chinese but alsothat you have written Chinese poetry.鎴戠煡閬?鑰屼?2.I cheered up immediately and floated weightlesslyaround in our space

20、ship cabin watching the earth become smaller and the moonlarger.鎴戠珛鍒绘劅鍒板緢楂樺叴,椋樺幓,鎴戞湜鐫锛堣韩鍚庣殑锛夊湴鐞冭秺鏉秺灏?鑰岋紙鍓嶆柟鐨勶級鏈堢悆瓒婃潵瓒婂銆?watching the earth become smaller and the moon larger?cheer(sb.)up:(cause sb.to)become happier or more cheerful娆懠;鍠濆僵;鎰熷埌楂樺叴;浣块珮鍏?Tryand cheer up a bit;life isn鈥檛 that bad!鎯冲姙娉曢珮鍏寸

21、偣,鐢熸椿骞朵笉鏄?The crowd cheered up when they saw the team arrive.褰撶湅鍒扮悆闃熺殑鍒版潵,浜虹兢娆懠璧锋潵銆?He took her to the concert to cheer herup.浠栧甫濂瑰幓鍚We watched the sun setting behind the trees.鏍戝悗闈惤涓嬨?Every day as they watched the plant grow,their hearts filledwith hope.姣忎竴澶綋浠栦滑鐪嬪埌妞嶇墿鐢熼暱,浠栦滑鐨勫績閲岄兘鍏呮弧浜嗗笇鏈涖?3.鈥淥 h de

22、ar,鈥?I cried,鈥渨 alking does need a bit ofpractice now that gravity has changed.鈥?鈥滃鍝?鈥濇垜澶璇?鈥滈噸鍔涙敼鍙樹簡,?now?watch.do/doing瑙傜湅,(that).:because of the fact(that).鏃劧鈥?鐢变簬鈥?Now(that)everybody is here,we can begin the meeting.鏃劧姣忎釜浜洪兘鍒颁簡,鎴戜滑灏卞彲浠紑濮嬩細better.?Now(that)you are a big boy you must behave,浣犲氨蹇呴 琛

23、屼负琛幇寰楁洿濂姐?4.We watched,amazed as fire broke out on the outside of the spaceship as theearth鈥檚 gravity increased.?,闅忕潃鍦扮悆寮曞姏鐨as fire broke精品教案设计资料out on the outside of the spaceship鍜宎 s the earth鈥檚 gravity increased鍧囦负as銆?He came in unnoticed.heroes lie buried in the churchyard.屻?break out:(of violen

24、t events)start suddenly锛堟寚婵鐑堜簨浠?濡傛垬浜夈佺伀鐏俱佺柅鎯呯瓑锛夌獊鐒跺彂鐢?鐖嗗彂 Fire broke out during thenight.澶滈棿绐佺劧鍙戠敓浜嗙伀鐏俱?War broke out in 1939.鎴樹簤鐖嗗彂浜?939 骞淬?A quarrel broke out suddenly at midnight.鍦繁澶?绐佺劧鏈変汉鍚垫灦銆?鈫扴 tep 5 Reading task Turn to Page 66.1.Ask students to read thepassage and answer the two questions.1)

25、Can a black hole be seen?How do youknow it 鈥檚 a black hole?2)What happened to the spaceship from the beginningto the end?Suggested answers:1)No,it can鈥檛 be seen.You can see thingsdisappear into what appears to be empty space.2)At first the lights on the spaceshipwent out and the computer stopped wor

26、king.Then the spaceship jumped and beganto move around the edge of the outside of the hole.As the spaceship moved aroundthe hole,it began to go faster and faster.But then the spaceship jumped again,and itmoved sideways from the black hole.It began to increase its speed until it seemed tobe going as

27、fast as light.At last the spaceship slowed down and the computer startedworking again.2.Let students read the passage again and do the following:Supposeyou are a scientist reading this passage.Use this checklist to discover the new ideasabout 鈥渂 lack holes 鈥?Then write them for the other scientists

28、to read about.Old ideas about 鈥渂 lack holes 鈥?Was this what we found?New ideas about鈥渂lack holes 鈥?1.Black holes cannot be seen.2.Gravity pulls objects towards them.3.Objects go round outside the edge of the鈥渂 lack hole 鈥?4.All objects must gointo the 鈥渂 lack hole 鈥?when they are caught by its gravi

29、ty.3.Several minuteslater,show the answers on the screen and check them with the whole class.At thesame time,deal with any difficult language points that students can鈥檛?amazed?Many精品教案设计资料understand.Suggested answers:Old ideas about 鈥渂 lack holes 鈥?Was this what we found?New ideas about鈥渂lack holes鈥

30、?1.Black holes cannot be seen.Yes 2.Gravity pulls objects towards them.Yes 3.Objects go round outside the edge of the鈥渂 lack hole 鈥?Yes 4.All objectsmust go into the鈥渂 lack hole 鈥?when they are caught by its gravity.Yes They canbe thrown far from the鈥渂lack hole 鈥?by the energy in the鈥渂lack hole 鈥?鈫扴

31、 tep 6 Consolidation Ask students to go back to the two passages.Give themseveral minutes to be prepared to retell the whole story in their own words.Then askas many students as possible to come to the front to tell the story.鈫扴 tep 7Homework 1.Finish off the Workbook exercises.2.Learn the useful ne

32、w words andexpressions in this part by heart.3.Tell the story to your friends or family.鏉夸功璁Unit 4 銆Astronomy:the science of the stars Extensive Reading A VISIT TOTHE MOON 1)Write down the three ways in which gravity changed for Li Yanping.The way gravity changed Left the earth The gravity became ve

33、ry strong.In space Thegravity disappeared.On the moon The gravity became very light.2)His weightchanged three times,too.Now write them down.How his weight changed Left theearth He became very heavy.In space He had no weight and could float around like afeather.On the moon He was about one-sixth of his weight on the earth.娲诲姩涓庢帰绌?Go to the library and surf the Internet to find as much information as youcan about space and the moon.And you are expected to present it to your teacherand classmates in the next class.