福建省泉州市安溪县九级英语上册 Unit 4 Amazing Science Topic 1 When was it invented教案 （新版）仁爱版.doc

unit 4 amazing sciencetopic 1 when was it invented?i. the key points and difficult points1. key points: words and phrases: lock, metal, be made of, be made from, be made in, be used for, be allowed to do sth. sentences:whats it made of? its made from wood. whats it used for? its used for locking the door. i wish i could go into space some day. i hope your dream will come true.grammar: was/were +pp2. difficult points：be made of和be made from的用法辨析。 i wish i could go into space some day. its used for writing on .ii. learning strategies通过温习一般现在时的被动语态知一般过去时的被动语态，实现从一般现在时的被动语态到一般过去时的被动语态的转换。通过联系生活实践，来区分be made of和be made from。在交流中，重在表意，不要担心出错。iii. teaching proceduresstagei revision & lead-instep 1: let the ss change the sentences in group a into present passive voice.step 2: present the sentences in group b and encourage the ss to discuss in groups and change them into passive voice, too.step 3: let the ss observe the two groups of sentences and try to find the differences between them. move to past passive voice.stageii pre-listeningstep 1: use pictures, real objects or ppt to teach: rocket, satellite, spaceship, metal.step 2: let the ss read the statements in 1b and guess the meaning of be made of.stageiii while-listeninglet the ss listen to 1a and do 1b. now, listen to 1a and do 1b. we will check the answers after listening.stageiv post-listeningstep 1: let the ss read the questions in 1c, and then read 1a and find the answers to the questions.step 2: let the ss read 1a again and underline the passive voice and the key points.stagev finishing task 2step 1: let the ss read the examples in 2 and find the differences between example one and example two.step 2: let the ss make up similar dialogs in pairs. stagevifinishing task 3astep 1: let the ss look at the pictures in 3a to learn the new words laptop and digital, and then listen to 3a and number the pictures.step 2: let the ss listen to 3a again and fill in the table in 3a.stagevii finishing task 3blet the ss read the example in 3b, and then make up similar dialogs in pairs based on the information in the table in 3b.stageviiisummarizing and assigning homeworkstep 1: let the ss go over this section and sum up the key pointsstep 2:hmksection bi. the key points and difficult points1. key points: words and phrases: bulb, airplane, be different from, be made of, be used for, so that, not only.but also, all over the worldsentences: its said that he invented more than two thousand things during his life. they are designed not only for workers but also for teenagers and women.grammar: was/were +pp2. difficult points： its said that he invented more than two thousand things during his life. nowadays, their materials have been changed so that it feels more comfortable.ii. learning strategies 能够通过1b、1c的问题，确定在听的过程中应注意哪些细节。 能够利用1c的图表来描述1a的内容。 能够根据2的时间关键词来确定正确的语态。iii. teaching procedures stagei getting students ready for learninglet the ss play the guessing gamet: are you good at guessing the riddles? t: ok. here is a riddle.stageii pre-listeningstep 1: present the pictures of thomas edison, guglielmo marconi, wilbur and orville wright. let the ss learn their names.step 2: read the questions in 1b.stageiii while-listeninglet the ss listen to 1a and do 1b. check the answers. finish 1b.t: listen to 1a carefully and do 1b.stageiv post-listeningstep 1 : let the ss read 1a and do 1c.step 2: let the ss do the guessing game and finish 1d. step 3: let the ss read 1a again and find out the difficult and key points.stagev finishing task 2step1: let the ss do 2, check the answers and finish 2.step2: write down on the bb the sentence “nowadays, their materials have been changed so that it feels more comfortable”. let the ss understand the perfect passive.stagevi finishing task 3let the ss listen to 3, check the answers and finish 3.stagevii finishing task 4a let the ss read the words, and then listen to the tape and check the vowels.stageviii finishing task 4bstep1: listen and read the sentences in 4b, and find out the rules of stress and intonation.step2: let the ss make up similar conversations using the words in 4a. stageviiiisummarizing and assigning homework step 1: let the ss sum up the key points of this section.step 2: hmk 0section ci. the key points and difficult points1. key points: words and phrases: invention, crayon, thought, silly, balloon, gun, robot, keyboard, come about, laugh at, come to sentences: thats why now we have planes. this is the time to brainstorm for ideas and to evaluate them.grammar: was/were + pp2. difficult points： inventions come about in many ways. none of these things was planted in fields. remember that no idea is too silly.ii. learning strategies 能够通过1a的pre-reading来预测文章的内容。 能够概括文段大意，提炼主题句。 学习3来拟定写作提纲。iii. teaching procedures stagei getting students ready for learninglet the ss speak out the inventions they collected.t: lets check the inventions you have collected. who will be the first one?stageii lead-instep1: present real objects or pictures to learn the new words: balloon, crayon, gun, robot, keyboardstep2: let the ss discuss the inventions they collected and the inventions in 2. choose the top 3 most important and the top 3 least important inventions. finish 2.stageiii pre-readinglet the ss discuss the pre-reading questions in 1a.t: now, lets move to the pre-reading questions in 1a. discuss question 1 and question 3. then report to your class.stageiv while-readingstep1: let the ss read 1a and try to summarize the main idea of each step in the process of inventing things to finish 1b. step 2: read 1a again and do 1c. check the answers and finish 1c.stagev post-readingstep 1: present“invent(v)+tion = invention(n), think (v)-thought (n), brain + storm = brainstorm (n/v), detail (n)+ed=detailed (adj), re+design=redesign, imagine(n) +tion= imagination (n)”on a small bb or on the screen. let the ss learn the words by word formation and guess the meaning of “silly, evaluate” by context. step 2: let the ss read 1a and discuss the difficult and key points.stagevi summarizing and assigning homeworkstep1: let the ss repeat the passage with the help of the key words: first, imagination, then, plan, design, third, detailed, drawing, model, test, after that, name, last, share.step 2: hmksection di. the key points and difficult points1. key points: words and phrases: mark, explorer, system, man-made, find out, as long as, be used to do sth.sentences: this method worked well at night as long as the weather was good and the stars could be seen. today, the problem has been solved by the global positioning system. it can also be used to study the shape of the earth.grammar: was/were +pp2. difficult points： the gps is a great invention that helps us explore our planet and discover where we are. ii. learning strategies 通过语法和功能部分的归纳总结来内化所学的语言知识。 通过参与讨论1a的问题来感知、预测文章大意。 通过project的设计活动，介绍自己的发明来提高口头表达能力。iii. teaching procedures stagei revisionstep1: let the ss complete grammar and functions and check the answers.step2: let the ss sum up the usage of passive voice.step3: write down some chinese sentences on the bb or on the screen. let the ss put the sentences into english alone and then check the answers in groups. let the group leaders collect all the mistakes.stageii pre-readingstep1: present a c