2022年2022年必修3Unit4Astronomythescienceofthestars

1、精选学习资料 - - - 欢迎下载unit4astronomy: the science of the starsi 单元教学目标技能目 标 goalstalk about the science of the stars、 the development of life and space travel and gravitypractise giving instructionspractise talking abut problems in study or life learn to use noun clauses as the subjectlearn to write an e

2、ssay to show your problems and the way toovercome them.ii. 目标语言词1 四会词汇astronomy、 atmosphere、 system、 violent、 solid、 explode、 carbon、 dioxide、 oxygen、 surface、 planet、 harmful、 development、 spread、 method、 depend、 exist、 presence、 telescope、 disappoint、 disappointed、 publish、 publishing、 gravity、 fo

3、rce、 gradually、 cheer、 float、 mass2 认读词汇astronomer、 biochemistry、 geophysics、 solar、 big bang、 vapour、 nitrogen、 dissolve、 amphibian、 reptile、 generally、 mammal、 global、 comet、 issac newton、 albert einstein、 stephen hawking、 lessen、 weightlessly、 cabin、 exhaust、 exclaim3 词组汇solar system、 in time、 pr

4、eventfrom、 depend on、 cheer up、 now that、 get the hang of、 break out语noun clauses as the subjectnoun clauses as the subject is also called the subject clause. that means a noun clause serves as subject in the sentence. the words which are used in this noun clause are: that、 whether、 who、 what、 which

5、、 when、 where、 how、 why、 etc.example法1.what it was to become was a mystery.2.it was not clear whether the solid shape was to last or not.1. what it was to become was a mystery until the dust began to slowly combine into a ball moving around the sun. p252. it s exploded loudly with fire and rock、 whi

6、ch were in time to produce the water vapour、重carbon dioxide、oxygen、 nitrogenand other gases、 whichwere to make the earths atmosphere. p253. it allowed the earth to dissolve harmfulgases、 which had become part of the earths点atmosphere、 into the oceans and seas. p254. whether life willcontinue on the

7、earth for millionsof years to come willdepend on whether this problem can be solved. p26句5.when we get closer to the moon、 we shall feel its gravity pulling us but it will not be asstrong a pull as the earth s. p306.walking does need a bit of practice now that gravity has changed. p31子7.we watched、

8、amazed as fire broke out on the outside of the spaceship the earth s gravity increased. p31第 1 页 共 8 页精品学习资料精选学习资料 - - - 欢迎下载8. seen from space、 the earth appears to be a water ball.9. but the answers have always seemed well beyond our reach、 until now.10. huge questions remain to be answered、 befor

9、e we can hope to have a complete picture of the universe we live in.iv . 分课时教案the first periodintensive readingteaching goals教学目标1. target language目标语言a 重点词汇和短语astronomy、 atmosphere、 system、violent、solid、explode、carbon、 dioxide、oxygen、surface、planet、 harmful、 development、 spread、 method、 depend、 sol

10、ar system、 in time、 preventfrom、 depend onb 重点句子1. what it was to become was a mystery until the dust began to slowly combine into a ball moving around the sun. p252. its exploded loudly with fire and rock、 which were in time to produce the water vapour、 carbon dioxide、 oxygen、nitrogen and other gas

11、es、 which were to make the earth s atmosphere.2. ability goalsa. enable ss to talk about the science of the stars、 the development of life and space travel andb. understand the text and answer the following questions:c. enable the ss to understand the details about the passage、 choosing the correct

12、answerd. retell the passage using key sentences.3. learning ability goalsenable ss learn how to talk about the beginning of life on the earth. teaching important pointsa. talk about the beginning of life on the earth.teaching difficult points教学难点a. understand the beginning of life on the earth.b. di

13、scuss the questions:what will our future be if the earth may become too hot for the lives on it. why are humans the cleverest animals on the earth.teaching methods教学方法a.skimming and scanningb；asking-and- answering activity to check the ss understanding of the text. teaching aids 教具预备a recorder、 a co

14、mputer、 a projectorteaching procedures & ways教学过程与方式step i presentation step iv reading.scanningget the ss to read the passage quickly and accurately and meanwhile help the ss to form a good habit of reading.step v listeningin time for sth./to do sth.:not lateshe will be back in time to prepare

15、dinner.in / out of time:in/not in the correct time the audience clapped in time to the music.2. nobody knew that it was going to be different from other planets going around the sun.be different from:not like someone or something else in one or more ways going around the sunis ing form that serves a

16、s attributive.men breaking the law will be punished.can you see the girl dancing with your boyfriend.第 2 页 共 8 页精品学习资料精选学习资料 - - - 欢迎下载3. whether life will continue on the earth for millions of years to come will depend on whether this problem can be solved.4. walking does need a bit of practice now

17、 that gravity has changed. passage analyzingi text chart.how life began on the earth ii text retellingretell the text using about 100 words.notes: use the two questions and the chart to retell the passage; iii moral educationteacher can guide the ss to understand the text deep、 making the ss to have

18、 a scientific attitude towards science: the beginning of universe ；iv writing techniques 1.writing characteristic1) lead in the topic of how life began on the earth by beginning with two questionsso as to arouse the readers strongcuriosity and interest.2) the passage tells the readers the scientific

19、 idea in order of time.2. writing stylethe text is common science writing、 which tells the readers how the universe developed and how life began on the earth.3. main ideathrough the writer s clear description、 we know that how life began on the earth. its a long and slow process. from the passage、 w

20、e know that earth is the best place for human to live on.step vi homeworkretell the passage according to the form. remember important language points.the second periodlanguage study teaching goals教学目标1 target language目标语言a 重点词汇和短语suffer、 settle 、 realize 、 worry about 、 have got to、 tie upb 重点句子： he

21、 was very disappointed.what it was to become was a mystery.to save money、 you must use as few words as possible.c. practise talking about problems in study or life my problem isthe difficulty ismy trouble isthe question ismy advice iswhat i think about it isthe fact ismy suggestion is2 ability goals

22、才能目标learn to use noun clauses as the subject.3 learning ability goals学能目标let ss learn how to use noun clauses as the subject teaching important points教学重点the use of noun clauses as the subjectteaching difficult points教学难点how to teach the ss to learn to use noun clauses as the subjectteaching methods

23、教学方法learn grammar through practice teaching aids 教具预备a projectora blackboardteaching procedures & ways教学过程与方式step i revision1.check retelling of the passage.the explosion of the earth produced water vapor、 which turned into water when the earth cooled down. water allowed the earth to dissolve ha

24、rmful gases into the oceans and seas. translate the following sentences.第 3 页 共 8 页精品学习资料精选学习资料 - - - 欢迎下载suggested answers:1. youll succeed in time.my car is different from yours.who is the person standing by the door.2. hes always the first to come and the last to leave.now that you have grown up

25、you can decide it yourself. step ii word studythis part is a consolidation of the words learnt in this unit. ask the ss to do the exercise independently. key to the exercises:part1 across:2.float 5.mass 6.presence 8.carbon 9.mobile down:1.planet 2.force 3.astronomy 4.explore 7.circlepart2 1.energeti

26、c 2.surface 3.depends on 4.gradually 5.exists 6.preventfrom 7.spread 8.are multiplying 9.now that6. part3 can be homework if time is limited.step iii preparationshow some example sentences on the screen.1 a tree has fallen across the road.2 you are a student.3 to find your way can be a problem.4 smo

27、king is bad for you.5 “how do you do. ”is a greeting.6 what she said is not yet known.7 that we shall be late is certain.8 its certain that we shall be late. step iv grammar1. give them some time to find the sentences in the passage. then collect answers from the class.show the answers:1. because it

28、 was not clear whether the solid shape was to last or not.2. what scientists think is that the earth was different because of3. whether life will continue on the earth for millions of years to come will depend on2. show typical examples of how to make a subject clause. guide the ss to find out what

29、changes we have to make when we make a sentence or combine two sentences using subject clause. teachers show the example and ss write down the sentences.show the answers:how fish developed from early shellfish is well-known. what reptiles look like and how large they are is strange. the extinction o

30、f dinosaur is a mystery.the importance of early plants was not known to scientists.3. t: turn to page64. read the following passage quickly and finish the eight sentences.check the answer: 1.what 2.what 3.why 4.what 5.where 6.when 7.how 8.what4. have a discussion in pairs. the topic is“my problem ”.

31、 one talks about problems in his study or life、 the other gives some advice. remind the students to use the following structures:step v homework1. finish part3 p292. finish part3 p64the third period listeningteaching goals教学目标1 target language目标语言a 重点词汇和短语gravity、 by chanceb 重点句子i heard about how th

32、e idea of gravity has developed over a long period of time.pick out the information and draw lines from the list to where the things are on the suit of the astronaut. 2 ability goals才能目标enable the ss to understand the different ideas about gravity.enable the ss to have a good understanding of the fo

33、rce of gravity in order to enjoy the stories fully and to become第 4 页 共 8 页精品学习资料精选学习资料 - - - 欢迎下载more involved and excited about studying space and the stars.3. learning ability goals学能目标enable the ss to appreciate that the science fiction stories are imaginary but based on fact. teaching important

34、 points教学重点listen to thematerial about thedetailed information about different scientists and their ideas. complete the form 、 make true or false judgement and answer questions.teaching difficult points教学难点discuss with partners and have a debate to find out ways to solve the problems about what a sp

35、acesuit should be like.teaching methods教学方法a. discussionb. listeningc cooperative learningd. debatingteaching aids 教具预备a recorderteaching procedures & ways教学过程与方式step i. revisioncheck homework exercise. part3 p29:part3 p64:1. with the development of science and technology、 people have come to de

36、pend more and more on the computer to deal with all kinds of things.2. now that many problems exist which cannot be solved、 wars will probably break out.3. he gradually got the hang of this method of research after many years practice.4. the presence of that famous director cheered up all the people

37、 at the meeting.5. we should find some ways to prevent the harmful gas from spreading.6. he is already exhausted. we should lessen his pain instead of disappointing him. step ii. listening using language1. the ss will hear different ideas about gravity of three scientists、 and then fill in the blank

38、s. t: have you heard of isaac newton. how much do you know about him.s1: hes english.step iii listening wb p62 1.part1.t: whos yang liwei.s1: hes our hero who traveled into space on october15、2003. 2.part2.t: now focus your attention on part2. then we ll listen to the tape again.play the tape and pa

39、use when the students need to write information down. then collect answers. 3.part3.first ask ss to talk about the answer. if necessary play the tape again for ss to check the answer.answers: 1.theres a special seat to throw him out of the space rocket if things went wrong.2. the answer can be diffe

40、rent.step iv listening task p65t: do you want to have a space walk. s: yes、 of course.key to part2:1.oxygen can on the back 2.water system the part of the suit covering the body 3.gravity boots on第 5 页 共 8 页精品学习资料精选学习资料 - - - 欢迎下载the feet 4.left engine on the left side 5.right engine on the right si

41、de 6.tool kit on the waist、 at the backstep v homeworktoday we have listened to three materials. after class、 you should listen to them again and sum up what you have learnt from them. for the homework、 think about a question: what needs to be an astronaut.the fourth periodextensive readingteaching

42、goals教学目标1 target language目标语言a. 重点词汇和短语force、 gradually、 float、 mass、 cheer up、 now that、 break outb.重点句子：when we get closer to the moon、 we shall feel its gravity pulling us but it will not be as strong a pull as the earths.p30walking does need a bit of practice now that gravity has changed. p31we

43、 watched、 amazed as fire broke out on the outside of the spaceship the earths gravity increased. p31 2 ability goals才能目标a discuss the three ways in which gravity changed on the moon. and some information about black holes.b. discuss the questions about the passage: how did gravity change on the moon

44、. what does a black hole look like. what will happen if an object is near the black hole.teach the ss to read passages with feeling.3 learning ability goals学能目标enable the ss to get to know about gravity and black holes. teaching important points教学重点talk about gravity and black holes. teaching diffic

45、ult points教学难点a. discuss the answers to the questionsb. teach the ss to read the passage with feeling、 paying attention to pronunciation and intonation.teaching methods教学方法a. fast readingb. dealing with comprehension questionsc. discussion teaching aids 教具预备a projector、 a computer、 a recorder teachi

46、ng procedures & ways教学过程与方式step i revision check homeworkt: last class we have learned differentideas about gravity、whatqualityan astronautshould have and some equipment on a spacesuit. now answer the question: what needs to be an astronaut.s: an astronaut should have good health、 excellent degr

47、ee、 many yearstraining、 right height and weight. they alsoshould be calm、 firm、 patient、 mature and hard-working.they must be able to adapt to the harshness of life in space.step ii reading page301. ask the students to read the passage quickly and fill in the form. then check the answer.t: in last l

48、esson、 we have learned some informationabout gravity. today well know gravityin details. read the passage and fill in the form.2. listen to the tape and imitate he tape. then practice reading aloud the dialogue with feeling. 3.ask two or three pairs of ss to read the passage with feeling.step iii re

49、ading task page66this reading passage is about black holes. afterthe firstreading、 let the ss answer some questions. show the questions on the screen. then、 let them talk about the form on page 67 after reading the text again.suggested answers:第 6 页 共 8 页精品学习资料精选学习资料 - - - 欢迎下载step iv extra-readingh

50、ere is a supplementary reading material on the screen、 a passage about black holes. read it carefully and then do some comprehension exercises with their partners.the fifth periodspeakingteaching goals教学目标 1 target language目标语言 a 重点词汇和短语preparation、 instruction、 unexpected、 a set of、 pay attention t

51、o、 as well asb 交际用语practice giving instructions please look at/ listen toplease check thatyou needplease pay attention todon t forget toyoud bettermake sure youwatch out foryou mustnt 2 ability goals才能目标a. enable the ss to make a list of things that they need.b. enable the ss to talk about giving in

52、structions. c. enable the ss to play different roles in a conversation.3 learning ability goals学能目标a. learn how to make a list of things that they needb help the ss learn how to talk about giving instructionsc. enable the ss learn how to play different roles in a conversation.teaching important and

53、difficult points教学重点难点a. teach the ss how to how to talk about giving instructions b. help the ss to learn how to play different roles in a conversation.teaching methods教学方法a. pairs work and group workb. discussion and cooperative learning teaching aids 教具预备1 a computer 2 a projectorteaching procedu

54、res & ways 教学过程与方式step i revisionask some of the ss to read his / her passage about gravity.remember that an acceleration is a change in velocity and that velocity is a vector、 so it has both a magnitude and a direction. thus、 an acceleration occurs if either or both the magnitude and the direct

55、ion of the velocity change.step ii presentationt: do you remember the conversation between li yanping and professor wallis. step iii speaking page31after a few minutes. step iv talking page62the task asks the students to work in pairs and give a friend a number of“does”and “donts”for going into spac

56、e.they need to make suggestions using the phrases that they have been given to help them. when they have worked out step v speaking task page67the purpose of this task is to use the information the students have gained from the listening text and reading passage in a new situation. questions and ans

57、wers:1. what was the most unexpected thing you found out about black holes.the black hole threw out material as well as ate objects.2. how did you know you had got close to a black hole.you can see things disappear into what appears to be an empty space. thats a black hole.第 7 页 共 8 页精品学习资料精选学习资料 - - - 欢迎下载3. what was the most frightening thing that happened to you on