LessonampnbspinampnbspaampnbspLab教案

　　the fifth period
　　the general idea of this period
　　in this period, we’re going to learn pronunciation, everyday english, function and cultural corner.
　　teaching aims
　　learn and master the following:
　　(1)pronunciation in the general question sentence and interrogative sentence.
　　(2)words and expressions of sequence.
　　teaching important points
　　1. everyday english: where do we go from here?
　　keep the noise down.
　　you’ve got it!
　　go ahead!
　　it’s your turn.
　　2. a reading passage: cultural corner
　　teaching methods
　　inpidual work, pair work
　　teaching aids
　　1. a tape recorder
　　2. a computer
　　teaching procedures
　　step 1 revision
　　check the homework exercises.
　　1. show the words and phrases that come before the degrees of comparison.
　　2. check the answers on p91.
　　step 2 listening
　　learn the pronunciation. pay attention to the intonations.
　　mark the tones.
　　ask the ss to summarize the basic rules for the sentences.
　　read after the speaker in the correct tone.
　　additional sentences for them to read.
　　(1)where did you go last month?
　　(2)who’s the woman at the door?
　　(3)is the experiment successful?
　　(4)do you really want to have a go?
　　step 3 everyday english
　　get the ss to guess the meaning of each sentence and then give the right answer.
　　(1)a　(2)b　(3)a　(4)b　(5)a
　　step 4 pair work
　　make a short dialogue, using the expressions you have just learned.
　　s: if i want others to talk quietly, what should i say?
　　s: keep the noise down.
　　s: if you don’t know what to do, you may say...
　　s: where do i go from here?
　　t: if you hear someone say, ＂bag it,＂ what does he really mean?
　　s: put it in the bag.
　　t: no. it isn’t.
　　s: keep it secret.
　　t: no. it means ＂forget about it＂. you see, english is great fun.
　　step 5 function
　　 learn to express the sequence.
　　t: first read the short passage. then judge when you use them.
　　s: when we state an event, we use first..., then..., next...,after that...,lastly....
　　t: think of a situation where you use the expressions. tell the story to your deskmate.
　　step 6 culture corner
　　t: what are you interested in?
　　s: physics.
　　t: why are you enjoying learning physics?
　　s: i want to learn how things work.
　　t: do you hate to be told to do this or that?
　　s: i am excited if i can choose what i want.
　　t: now read the passage on p49. it will help you in learning about the science teaching in a school in canada.
　　ss read the passage eagerly.
　　t: why has mark become more interested in science?
　　s: because the science teachers at his new school are excellent.
　　s: because they have good labs with the latest equipment.
　　s: because his teacher often takes them to some interesting lectures by the  famous  scientists.
　　s: it is much easier for him to understand his science lessons.
　　t: very good. does our school have such good facilities?
　　ss: no.
　　step 7 discussion
　　t: what can you suggest to the school?
　　s: ask more good teachers to come to teach in our school.
　　s: buy more advanced equipment.
　　s: ask some scientists to give us lectures.
　　s: visit some museums.
　　step 8 further reading
　　read the passage to pick out the useful expressions.
　　(1)used to 过去常常
　　(2)change schools 转学
　　(3)the latest equipment 最新的设备
　　(4)four times a term 每学期四次
　　(5)make a discovery 作出发现
　　(6)many first-class scientists 许多一流的科学家
　　(7)win the nobel prize 获得诺贝尔奖
　　(8)be proud of 为……而自豪
　　(9)become more and more interested in 对……变得越来越感兴趣
　　(10)be supposed to have good physics departments 应有好的物理系
　　step 9 writing
　　read the passage again. suppose you are the boy’s father. write about your son’s new school and his school lessons.
　　you may begin like this: mark’s feeling about science has completely changed. it is all because of the new school he is attending.
　　step 10 summary
　　ask the ss to turn to p50.look at the module file. say in this module you have learnt: ...
　　ask them to learn to use the words and expressions.
　　step 11 the design of the writing on the blackboard
　　module 5　a lesson in a lab
　　the fifth period
　　discussion:
　　what can you suggest to the school?
　　(1)used to 过去常
　　(2)change schools 转学
　　(3)the latest equipment 最新的设备
　　(4)four times a term 每学期四次
　　(5)make a discovery 作出发现
　　(6)many first-class scientists 许多一流的科学家
　　(7)win the nobel prize 获得诺贝尔奖
　　(8)be proud of 为……而自豪
　　(9)become more and more interested in 对……变得越来越感兴趣
　　(10)be supposed to have good physics departments 应具有好物理系
　　step 12 activity and inquiry
　　task: activity 3
　　write about your experiment using these headings:
　　aim equipment method result conclusion
　　stepsstudents’ actingteacher’s organizing
　　1let the students know what to do.read the intructions to make sure what they should do
　　2read text b again.have the students read text b
　　3write about the experiment using the headings.ask the students to write about the experiment using the headings.
　　4read out their experiment notes two or three pairs.get some students to read out their experiment notes.
　　detailed explanations to the exercises:
　　grammar:
　　1.1c　2f　3e　4b　5a　6g　7d
　　2.1 eleven times larger
　　2 five times further
　　3 twenty times bigger
　　4 half as big as
　　5 as big as
　　sample answers:
　　saturn is ten times larger than earth.
　　saturn is about twice as far from the sun as jupiter.
　　jupiter is eleven times bigger than earth.
　　earth is twice as big as mars.
　　jupiter has nearly as many moons as saturn.
　　3.1 healthier, longer　2 more, less
　　3 warmer and warmer　4 bigger and bigger　5 more, more
　　4.1 a bit 2 a lot　3 rather　 4 a little
　　vocabulary
　　5. students’own answers.
　　6.1 gas: steam　oxygen　air
　　2 solid: glass　iron　metal　salt　steel
　　3 liquid: oil　water
　　7.boil water　bunsen burner　cotton wool　nobel prize　scientific experiment　test tube
　　8.1 method　2 aim　3 apparatus　 4 gravity　 5 electricity　6 conclusion, results
　　7 balance　 8 heat 　 9 expands　 10 boil
　　9.1b　2b　3c　4b
　　10.summary 3　从倒数第三、四段可知是一个叫paul的学生误拿了丙烯酰胺试剂,烧出呛人的味道。
　　11.1 baking soda and hydrochloric acid.
　　2 salt.
　　3 by making the mixture hotter.
　　4 he used the wrong liquid.
　　5 because there was no label on the bottle.从倒数第四段右栏一、二两行可看出。
　　6 it formed a thick cloud of white gas. 由倒数第三段最后一句可知。
　　7 because the liquid was acrylamide and the gas was poisonous.从倒数第二段最后一句可知。
　　8 never to leave a bottle without a label in the chemistry lab. 从倒数第四段可知。
　　12 students’ own answers.
　　13&14
　　the aim is to write a secret message.
　　1b squeeze a lemon and put the juice into a container
　　2f dip your pen into the juice
　　3a write your message on a piece of paper
　　4g blow on the paper to dry the lemon juice
　　5e light a candle
　　6c heat the paper in the candle flame
　　7d the message appears when the juice reacts with oxygen and produces brown oxide