九年级英语全册Unit9WhenwasitinventedSectionB(3bSelfcheck)学案无答案人教新目标版

1、江西省萍乡市芦溪县宣风镇中学九年级英语全册 unit 9 when was it invented section b(3b-self check)学案（无答案） 人教新目标版导学目标:1基础知识目标： 1）掌握3b-selfcheck的词汇及短语。 2）掌握一般过去时被动语态。2能力目标：使学生学会正确运用被动语态来描述发明物。3、 学习策略（learning strategies）: writing skills4、情感目标：通过由听到读到写的训练，使学生养成勤于思考，善于总结的好习惯。导学过程一、课前准备：完成下列句型转换1. she was seen to come out of th

2、e library by him.（变被动语态）2. when are trees often planted?（变被动语态）3. the league was founded in guangzhou in 1922（就画线部分提问）4. did the students wear the school clothes a lot ?（变被动语态）5. kate took god care of the baby yesterday evening.（变被动语态）6.his aunt bought him a bicycle.（变被动语态）7.his aunt bought him a bi

3、cycle.（变被动语态）二、学案导学step 1. greetings.step 2. free talkshow some pictures of inventions and ask students discuss pictures and something about what he/she would like best in class.step 3 3b writing an articleon page 72 you will find notes in the box on the left. write an article using the notes about

4、the invention of the flying disk.1. read the instructions to the class and make students look at the sample first sentence of 3b.2. explain that students can combine more than one point into one sentence.3. ask students to finish in oral english.an example:the flying disk was invented by college stu

5、dents. they used a metal pie plate from a bakery in bridgeport, connecticut. students ate the bakerys pies and then threw the pie plates. today, there are flying disk clubs, magazines and a festival.step 4 4a thinking and inventionwe all have things that we dont liking doing. why not think of an inv

6、ention that could help you. write the details of your invention in the chart on page 72. for example:problemlearning englishnew inventiona machine that translates english into chineseusethe machine “sees” the written english, and shows the translation.the machine “hears” the spoken english, and repe

7、ats it in chinese.price100 yuan eachstep 5 4b doing pairworkin pairs ask each other questions about inventions, and try to sell your invention to your partner.you may begin as is shown in the box on page 72.a: this special pen was invented by zheng jie. it has three colors and it is used for learnin

8、g english.b: how is it special?a: when the red color is turned on, the pen reads out english as it is moved along the line.b: when about the black color?a: when the black color is turned on, the pen finds out the structure of the sentences as it is moved along the line.b: when about the yellow color

9、?a: when the yellow color is turned on, the pen shows the formation and meaning of the word as it is moved along the line.b: wonderful! where can i get one? a: i am the shop owner selling this kind of pen. step 6 self check1. filling blanks2. show some pictures of inventions. ask students to have co

10、nversations in pairs. for example: a: what is it ?b: its an abacus. umbrella/a binoculars, camera, bicycle.a: what is it used for?b: its used fora: oh, thats cool! who was it invented by?b: it was invented bya: what would you like best?b: id likebest.3. finish the writing task of section b 3b and se

11、lfcheck 2.after class.4.crazy inventionsask students to build their own crazy inventions using paper, cardboard and other materials they may have at home. have them bring their inventions to class and say something in class next class.三、 拓展延伸from pie plate to flying diska baker named william russel

12、frisbie, of warren, connecticut, and later of bridgeport, came up with a clever marketing idea back in the 1870s. he put the family name in relief on the bottom of the light tin pans in which his companys homemade pies were sold. the pans were reusable, but every time a housewife started to bake a p

13、ie in one, she would see the name frisbie and, it was hoped, think, how much easier to buy one. eventually mr. frisbies pies were sold throughout much of connecticut, including new haven. there, sometime in the 1940s, yale students began sailing the pie tins through the air and catching them. a deca

14、de later, out in california, a flying-saucer enthusiast named walter frederick morrison designed a saucer-like disk for playing catch. it was produced by a company named wham-o. on a promotional tour of college campuses, the president of wham-o encountered the pie-plate-tossing craze at yale. and so

15、 the flying saucer from california was renamed after the pie plate from connecticut. of course the name was changed from frisbie to frisbee to avoid any legal problems.四、典型例题解析：1.老人们被照顾地很好。the old _ _ _ after well.解析：这个题主要考查被动语态的结构be + 动词的过去分词和应用，在本题中应该是be looked after.2.you can use the box _ the to

16、ys.a. carry b. carrying c. to carry d. carried解析：在这个题目考查一个短语的应用 use sth to do利用某物做某事，因此答案为c。五、中考连接：1.although tom failed the game,_ he said he would try again.a. b. and c. but d. because2. i must practice _ english, because its important while talking with a foreigner.a. speak b. to speak c. speakin

17、g .speaks 六、课堂测评（一）fill in the blanks with the words given:1.the work _(finish)tomorrow morning.2.the books must_(give)back on time.3.i think the telephone _ (invent) in 1876.4.tea may _(invent) by accident.5.the ruler _(use )since i began my school life.6.the bikes are used for_(ride)on.（二）1、句型转换。（1）she was seen to come out of the library by him.(变为主动语态)he _ _ _out of the library.（2）when are trees often planted?(变为主动主态)when _ people often _ _?（3）the league founded in guang zhou in 1992.(就画线部分提