精品Unit4AstronomythescienceofthestarsReading课件-河北省鸡泽县第一中学人教版高一英语必修3共53张PPTPPT

1、unit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt)必修必修3 3unit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt)before the classyou are supposed to be engaged in the material and in whatever it is that we are disc

2、ussing in class, not necessarily thinking about getting down every word that i say.id like you to take active notes rather than passive notes. write down what can make you feel or learn something.better attention, better understanding of the material if you are actively engaged.better attention, bet

3、ter understanding of the material if you are actively engaged.you are supposed to be engaged in the material and in whatever it is that we are discussing in class, not necessarily thinking about getting down every word that i say.id like you to take active notes rather than passive notes. write down

4、 what can make you feel or learn something.unit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt)unit 4 readingunit 4 readinghow life began how life began on the earthon the earthunit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高

5、一英语必修3(共共53张张ppt)read the explanation and speak out the word it explains.unit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt)sudden and powerful; using force to hurt or attack violentadj. 猛烈的；激烈的；强暴的猛烈的；激烈的；强暴的harmfuladj. 有害的有害的atomn. 原子原子existvi. 存在；生存存在；

6、生存causing harm the smallest unit of any chemical element globen.地球；地球仪；球体地球；地球仪；球体to be, or to be real; to live, or to live in difficult conditions the world; a map of the world in the shape of a ball, which is fixed to a support and can be turned round at the same angle as the earth turns in space;

7、 any ball-shaped objectunit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt)theoryn. 学说；理学说；理论论 multiplyvi. & vt. 乘；增乘；增加加a formal statement of the rules on which a subject of study is based or of ideas which are suggested to explain a fact or eventto i

8、ncrease very much in number, or (in mathematics) to add a number to itself a particular number of times pron. & n. & adj. 万亿；万亿；十十亿亿billionthe number 1 000 000 000 with this result adv. 因此；于是因此；于是 thusunit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张

9、张ppt)oxygenn. 氧氧a colourless gas that forms a large part of the air on earth and which is needed by people, animals and plants to livethe mixture of gases around the earth; a feeling that a place has of being pleasant and interesting or exciting atmospheren. 大气层；气大气层；气氛氛unlikeprep. 不同；不像不同；不像fundame

10、ntaladj. 基本的；基础基本的；基础的的different from forming the base, from which everything else developsunit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt)(a length of) rings usually made of metal which are connected together and used for fastening, pulling, supportin

11、g, or limiting freedom, or as jewellery; a set of connected or related things any of various usually liquid substances which can react chemically with and sometimes dissolve other materials chainn. 链子；连锁；锁链子；连锁；锁链链acidn. 酸酸carbon dioxide二氧化二氧化碳碳the gas formed when carbon is burned, or when people or

12、 animals breathe out unit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt) in time lay eggs give birth to in ones turn prevent from下蛋下蛋 产生；分娩产生；分娩及时；终于及时；终于阻止；制止阻止；制止轮到某人；接着轮到某人；接着matchunit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第

13、一中学人教版高一英语必修3(共共53张张ppt)1. to summarize and remember the main idea of the passage.2. to speak out the detailed information of the passage.3. to learn more knowledge about how life began on the earth.4. to learn some useful words, expressions and patterns in the passage.objectivesunit4astronomythesci

14、enceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt)words: theory, violent, unlike, fundamental, harmful, exist, thusexpressions:in time, lay eggs, give birth to, in ones turn, prevent frompattern:what is even more important is that unit4astronomythescienceofthestarsreading课件

15、课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt)skimming for general ideaunit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt)reading comprehension iskimmingwhats the main idea of the text? a brief introduction on how human beings were born. b. a brief

16、 introduction on the birth of the universe and life on the earth. c. the “big bang” had a great effect on the birth of the earth. d. the appearance of human beings was a disaster to the earth. unit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt)analyse the

17、 structure of the passage. write down the main idea for each paragraph.paragraph 1:paragraph 2:paragraph 3:paragraph 4:paragraph 5:reading comprehension iiskimmingunit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt)paragraph 1: a widely accepted theory abo

18、ut the formation of the universeparagraph 2: the formation of the earthparagraph 3: the importance of water for lifeparagraph 4: the development of plants and animals on the earthparagraph 5: the arrival of humans and their impact on the earthunit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县

19、第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt)scanning for specific informationunit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt)1. the earth is different from other planets in that _. a. it was caused by a “big bang” b. there is the continued presence of water

20、 on the earth c. there is air on the earth d. the atmosphere covers the earth reading comprehension iiiscanningunit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt) 2. the plants grew before the animals because they provide _. a. nutrients for animals to ab

21、sorb (吸收吸收) b. oxygen for animals to breathe c. necessary temperature for animals to keep warm d. water vapour for animalsunit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt)3. which of the following statements is true?a. the dust settled into a solid glob

22、e between 4.5 and 3.6 billion year ago.b. the first small plants began to appear on the surface of the land.c. about 2.6 million years ago some small clever animals appeared and spread in the ocean.d. dinosaurs died out long before human beings developed on the earth.unit4astronomythescienceofthesta

23、rsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt)put the order of development of life intoa timeline. use the reading passage to help you.1 insects and amphibians appeared.2 dinosaurs appeared. 3 the earth became a solid ball.4 small plants grew on the water.5 reptiles appeared.6 plan

24、ts began to grow on dry land.reading comprehension ivscanningunit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt)7 the earth was a cloud of dust.8 water appeared on the earth.9 shellfish and other fish appeared.10 the universe began with a “big bang”.11 cl

25、ever animals with hands and feet appeared.12 mammals appeared.answer: 10 7 3 8 4 9 6 1 5 2 12 11unit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt)dm:sc:read the passage and underlineall the discourse markers (dm) and sentence connectors (sc). however, af

26、ter that, next, later, finally, thus, as a result of thisand, but, becausereading comprehension vscanningunit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt)detailed readingthe development of the earththe development of the earthunit4astronomythescienceoft

27、hestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt)stage 1: the development of the earth(1) after the big bang, what happened? a cloud of dust a violent solid ball unit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt)exploded with fire and

28、 rock produced water vapour and gases(2) what happened next?unit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt)(3) what did the water vapour and gases form?the earths atmosphereunit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版

29、高一英语必修3(共共53张张ppt)water appeared which is important for the beginning of life on the earth. (4) what appeared on the earth then?unit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt)(5) what did the water do?it allowed the earth to dissolve harmful gases and

30、 acids into the oceans and seas.unit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt)1. big bang (threw matter in all directions)2. a cloud of dust3. a solid globe4. exploded with fire and rock5. produce the carbon, nitrogen, water vapour, how did the earth

31、 come into being?unit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt)6. cooled down7. water appeared8. harmful gases were dissolvedunit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt)the development of lifethe de

32、velopment of lifeunit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt)extremely small plants what life developed after water appeared?stage 2: the development of life in waterunit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语

33、必修3(共共53张张ppt)all sorts of fish(2) what life developed in water next?early shellfishunit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt) green plants on land(3) what life developed after the life in water?insects on landamphibians on land and in the wateru

34、nit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt)forestsstage 3: the development of life on land(1) what life developed next on land?unit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt) reptiles on land dinosau

35、rs on land(2) what life developed after forests appeared?unit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt)mammals on land(3) what life developed after dinosaurs?unit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张

36、ppt) small clever animals(4) what life developed after mammals?unit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt)can you say the sequence of development of life on the earth?waterwater plantsshellfish fishland plantsland insectsamphibiansunit4astronomyth

37、escienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt)forestsreptilesdinosaursmammalsclever animalsunit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt)discuss the question in groups. group workunit4astronomythescienceofthestarsrea

38、ding课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt)design an activity on earth daywhat the activity is about?why the activity is designed?when and where to do the activity? who takes part in the activity?what to be done in the activity?how can we protect the earth and make it a better place

39、to live on?unit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt)individual activity注注: : 另附另附 word word 文档。文档。点击此处链接点击此处链接unit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt)i. fill in the blanks.finally about 2.6

40、 million years ago some small _ animals, now with hands and feet, appeared and _ all over the earth. _ they have, _, become the most important animals on the planet. but they are not _ the earth very well. they are putting too much _ into the _, cleverspreadthusin their turnlooking aftercarbon dioxi

41、deatmosphereunit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt)which _ heat _ escaping from the earth into space. _, many scientists believe the earth may become too hot to live on. so _ life will continue on the earth for millions of years to come will _

42、 whether this problem can be solved. preventsfromas a result of thiswhetherdepend onunit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt)ii. task-based reading.complete the passage with the right sentences from the box below.a. so what is a star?b. why are

43、there some stars in the night sky that dont twinkle?c. the stars are far away from planet earth.unit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt) why do stars twinkle? watching stars on a moonless night can be an interesting experience. millions of star

44、s twinkle as if they were playing hide-and-seek with ones eyes. why do stars twinkle? (1)_ and the light from the stars travels a very long distance to reach us. actually very little of the light finally manages to reach us. besides, it passes through the earths atmosphere before reaching us. as the

45、 light enters the atmosphere, something like dust interferes (干扰干扰) its path. cunit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt)so, sometimes it is visible, and sometimes it is not. this effect is called twinkling. (2)_ well, thats because they are not

46、stars at all. they are planets. planets do not twinkle because unlike stars, they do not have their own light. they are like the moon. they reflect light from the sun. (3)_ a star is born when lots of different gases, mainly hydrogen (氢氢) get together. the gas particles (微粒微粒) attract each other and

47、 slowly get compressed to form a huge mass of gases. and, as this mass grows, baunit4astronomythescienceofthestarsreading课件课件-河北省鸡泽河北省鸡泽县第一中学人教版高一英语必修县第一中学人教版高一英语必修3(共共53张张ppt)the temperature inside grows too, until such time when it bursts like a bomb. this explosion (爆炸爆炸) creates a gas called helium (氦