学人教版必修三Unit 4 AstronomyThe science of the stars Period5 Using Language(8页word版).docx

2019学年度人教版必修三unit 4 astronomy-the science of the stars period5 using language difficult points: develop students listening and speaking abilities in order to get them master different listening skills and learn the expressions of giving instructions. important points: get students to listen to the materials to make a dialogue using the fundamental items for giving instructions. knowledge aims: get students to learn some useful expressions in the listening passage:please pay attention to please check that .you need dont forget to .make sure that . watch out for.you had better . you must / must not . step 1 revision 1. check the homework. 2. ask some students to translate the sentences into english.1). 谁去都一样.who will go makes no difference.2). 野生动物能否得到很好的保护至关重要.whether wild life can be well protected is of great importance.3). 恐龙为什么灭绝了依然是一个谜.why dinosaurs died out remains a puzzle.4). 新饭馆什么时候开张还没有决定.it is not decided when the new restaurant will open.5). 你这么快就走, 真遗憾!it is shame that you have to leave so soon. step 2 warming up tell students to turn to page 30 and do some listening. play the tape three times for them to listen to and get some information to fill in the chart.isaac newtonalbert einsteinstephen hawkingidea development step 3 listening on page 62 1. listen to the tape and do some exercises. 2. have them listen to part one again and make notes of the answers to the questions.questions yang liweis answerswhen was the most exciting moment?what surprised him?what did he do? 3. listen to the part two and fill the form.information on yang liwei, the astronauteducation:training:physical qualities:personal qualities: 4. have them fill in the blanks in the passage below after finishing the above. well, i - of it when i was -, but i never thought my - would come -. it all happened very -. if there was an - i would - to go to the moon one day. step 4 talking 1. get them to read the expressions aloud to make sure them understand their chinese meaning.please pay attention to please check that .you need dont forget to .make sure that . watch out for.you had better . you must / must not .please look at . 2. suppose a situation: imagine one of your friends wants to go on a trip into space. you are worried about that he / she in not being careful enough in his / her preparations. so in pairs, make up a set of instructions for new space travelers. step 5 listening task on page 65 1. turn to page 65. tell them to listen to part of professor wallis interview with li yanping, the famous astronomer, about his first space walk. 2. have them read the words below and try to guess their meanings.hubble telescope oxygen waist gravity boots enginesweight tiringfeathers 3. listen to the tape carefully and get the information.questions notes why did li yan ping have to repair the hubble telescope?which two ways does his spacesuit protect him in space?how does he move about in space?what does it feel like in space?what happens if you fly too far from the spaceship?was the repair successful? step 6 summary in this period, we mainly focus on the listening and speaking abilities. they are very important. if your listening or speaking is poor, you had better practice more. the more you listen to or speak english, the better your listening and speaking is. remember: practice makes perfect. step 7 homework finish the workbook exercises. read the listening texts again and try to learn about gravity and space travel.the sixth period: using language: extensive readingthe teaching emphasis will be put on developing students reading ability by reading extensively. we will deal with two parts: a visit to the moon in using language on page 30-31 and caught by a black hole in reading task on page 66.difficult points: develop students reading skills by extensive reading.important points: enable students to learn to use reading strategies as skimming, scanning, and so on. get students to understand the science fiction stories.step 1 revision1. check the homework exercises.2. ask some students to come to the front and act out their dialogues to review the expressions of giving instructions.3. get the students talk something about isaac newton, albert einstein and stephen hawking as well as their ideas on the gravity.step 2 warming uplet students brainstorm the following questions:what country first sent people into space?how many countries have succeeded in sending people into space so far?who first landed on the moon?who is the first chinese astronaut to go into space?do you want to visit the moon?step 3 reading1. ask students to read the passage and then describe the three ways in which gravity changed for li yan ping and how his weight changed.2. fill in the two tables:write down the way in which gravity changed for li yan ping.the way gravity changedleft the earththe gravity became very strong.in spacethe gravity disappeared.on the moonthe gravity became very light. his weight changed three times, too. now write them down.how his weight changedleft the earthhe became very heavy.in spacehe had no weight and could float around like a feather.on the moonhe was about one-sixth of his weight on the earth. 3. read the passage aloud to the tape and underline all the useful expressions or collocations: be lucky enough to do, have a chance, make a trip into space, explain sth. to sb. the force of gravity, be off, the pull of the earths gravity, fall back to the earth, fall to the ground, 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 far as, fall over, a bit of, now that, after a while, get the hang of, break out, on the outside of, be pushed into step 4 important language points 1. before we left, li yan ping explained to me that the force of gravity would change three times on our journey and that the first change would be the most powerful. 2. i cheered up immediately and floated weightlessly around in our spaceship cabin watching the earth become smaller and the moon larger. 3. “oh, deer,” i cried, “walking does need a bit of practice now that gravity has changed.” 4. we watched, amazed as fire broke out on the outside of the spaceship as the earths gravity increased. step 5 reading task (page 66.) 1. ask students to read the passage and answer the questions: 1). can a black hole be seen? how do you know it is a black hole?(no, it can not be seen. you can see things disappear into what appears to be empty space. ) 2). what happened to the spaceship from the beginning to the end? (at first the light on the spaceship went out and the computer stopped working. then the spaceship jumped and began to move around the edge of the outside of the hole.as the spaceship moved around the hole, it began to go faster and faster.but then the spaceship jumped again, it moved sideways from the black hole. it began to increase its speed until it seemed to be going as fast as light.at last the spaceship slowed down and the computer started working again.)2. something about the black hole.old ideas about “ black hole”was this what we found?new ideas about “ black hole”black hole cannot be seen.gravity pulls objects towards them.objects go around outside the edge of the “black hole”all objects must go into the “black hole” when they are caught by its gravity.xthey can be thrown far from the “black hole” by the energy in the “black hole”. step 6 consolidation ask some students to read the passage again to prepare to retell the whole story. step 7 homework finish off the workbook exercises. learn the useful new words and expressions by heart. tell the story to your friends or family.the seventh period: speaking and writing in this period, the teaching activities will focus on speaking and writing, which offers students the opportunity to discuss what they need if they travel to the moon and about the pains and pleasures that might occur when traveling in space. important points: develop students speaking and writing abilities and learn to give instructions by writing a short passage to show their problems and the way to overcome them. difficult points: how to develop students writing and speaking abilities. step 1 revision check the homework exercises. ask some students to retell the passage a visit to the moon. step 2 warming up tell the students: as we all know, life is different in a spaceship. there is very little gravity so that things float around. ask a question to guide them: if you want to travel to the moon, what would we need? step 3 speaking 1. let students discuss the following situations and fill in the chart:to protect your skinspacesuitto stop you flying off the moons surface and into spacea rope to tie you to the spaceshipto stop your food floating awayspace food that you can eat easily 2. show them some useful expressions to give instructions:dosdontsplease pay attention toplease check that.make sure that .you had better.watch out for.you must.you need.please look at .you mustnt .please dont.remember never to .dont forget to . step 4 writing1. task: write a short a article explaining one of the problems that you might have on the moon and set out what you should do to overcome this difficulty and have a happy visit.2. make a writing plan:main idea: explain the three problems you will have while visiting the moon.paragraph 1: one of the problems you might have on the moon.paragraph 2: how you will solve it.summing up: how successful the holiday will be if you follow this advice. step 5 speaking task suppose you, a school newspaper journalist, are going to interview li yanping after his return from the moon. now plan to write an article about the interview. may some questions can help you: what was the most unexpected thing you found out about the “black hole”? if you can not see a “black hole”, how did you know you had reached one? what was the most frightening thing that happened to you on this journey? step 6 writing task ask students to write an article telling their teacher and classmates about their ideas and hopes for traveling in space. sample writing: i would like to visit the planet, venus, if i had opportunity to go into space. i have always wanted to visit it ever since i first found out which star it was in the night sky. i think it would take me a long time to get there. so i would need a spaceship with lots of distractions. it would be very important for my exercise on my journey to venus so i would need a gym and a swimming pool. then my muscles would be strong when i return to the earth to tell my story. i hope that i will see many exciting things on venus. i love heat but i understand it is extremely hot there. my spaceship will have to be able to withstand heat of over 1000 degrees and not melt. it would be wonderful if i could pass close to the moon on my way to venus. i would like to be able to see the first footprints left by the american astronauts and find the place where they landed. i will be able to see that because they left a flag on the surface. i expect that when i get there venus will be very cloudy, hot and humid. i shall need special clothes to wear and air to breathe. i would like to be the first astronaut to walk on venus and plot its geography. that would be wonderful for me as well as my country. i hope i will be clever enough to take part in the chinese manned space missions when i am old enough. step 7 homework finish off the workbook exercises. review the contents of the unit and complete summing up on page 32.补充练习1. word spelling.1). the old administration system is under greater and greater challenge.2). almost every country has some form of religion.3). one theory about the moon is that it is a piece broken off the earth.4). not a few violent scenes were cut from the film before it came to show.5). the earth has an atmosphere which allows us to breathe the air.6). she is unlike her mother: she is tall and her mother is very short.7). fresh air is fundamental to good health.8). when animal have more food, they generally multiply faster.9). the roman empire existed foe several centuries.10). it is a puzzle where all my money goes each week.2. fill in the blanks with the expressions given below. use each expression only once and make changes where necessary.in time, give birth to, in ones turn, prevent from, cheer. up, now that, break out, watch out.1). over 500 people were working in the building when a big fire broke out on the third floor.2). a few pictures cheered the room up a bit.3). i intended to catch the early bus, but i didnt get up in time.4). what can we do to prevent th