四川省江油市明镜中学九年级英语Unit9Whenwasitinvented教案人教新目标版

1、 unit 9 when was it invented?part 1: teaching design (第一部分：教学设计)section b goalsto learn to use passive voice (questions and statements)to read about teaprocedureswarming up by making passive sentenceshello, everyone. this week we learn to use passive voice (questions and statements). now we shall be

2、gin by making passive sentences (questions and statements).i was frustrated by his reply.his death was caused by his hard work.was the problem solved?his last hope was given up.his english pronunciation is influenced by his chinese.his attention was concentrated on his disease.when was your radio se

3、t lost?was her order obeyed?was she terrified by her face?when was his house burned?1a looking and writingon page 71 you will find some adjectives used to describe how food tastes. look at the pictures and write them under the correct picture. note that some pictures have more than one word.do you l

4、ike sweet drinks?the crackers arent crisp. they must have got wet.this soup is very salty.i like to drink sour milk.these oranges are as sour as lemons.1b writing the nameson page 71 you will find in the box some adjectives used to describe food. now read each of them and write the name of a differe

5、nt food after each of them.sweet apple crispy crackers salty water sour rice2a listening and circlingon page 71 in the middle of the page you will find 6 statements. listen to the recording and circle t or f. tapescriptboy1: hey, did you know that potato chips were invented by mistake?boy2: really?

6、what do you mean?boy1: well, here on the bag it says that they were invented by a chef called george crum.boy2: when was that? boy1: oh, it was back in 1853.boy2: so, why was it an accident?boy1: well, one day a customer in the restaurant where george worked sent back his plate of fried potatoes bec

7、ause he said they were cut too thick.boy2: so what happened?boy1: well, george was in a bad mood, so he cut the potatoes really, really thin, and he cooked them for a long time until they were crispy. and he sprinkled lots of salt on them so they were really salty. he thought the customer would hate

8、 them.boy2: and?boy1: and the customer loved them and asked for more. he told the other customers about them, and soon everyone was ordering thinly-sliced, crispy, salty potato chips.boy2: and were still eating them today. what a cool story!boy1: yeah.(the keys: 1. t 2. f 3. t 4. f 5. f 6.t)now read

9、 the tapescript and copy down all the useful expressions into your notebook. be invented by mistake, on the bag, back in 1853, one day, in the restaurant, send back, a plate of fried potatoes, be cut too thick, in a bad mood, cutreally, really thin, cooka long time, sprinkle on, hate, asked for, tel

10、l about, thinly-sliced, crispy, salty potato chips, a cool story2b listening and completingyou are going to listen to the tapescript and complete the sentences on page 71 in the box.the history of chipsdo you know that potato chips were invented by mistake? chips were invented by a chef called georg

11、e crum. they were invented in 1853. george crum cooked them for a long time until they were crispy. and he sprinkled lots of salt on them so they were really salty. 2c doing pairworknext you are going to role play the conversations about the invention of the potato chip. use the information from the

12、 activities above.the invention of the potato chipa: do you know that potato chips were invented by mistake?b: i dont know.a: they were invented by a chef called george crum.b: when was that? a: it was invented back in 1853.b: was it an accident?a: a customer sent back his plate of fried potatoes be

13、cause they were cut too thick. george cut the potatoes really, really thin. and he cooked them for a long time until they were crispy. he sprinkled lots of salt on them so they were really salty. b: did the customer loved them?a: yes, they asked for more. everyone was ordering thinly-sliced, crispy,

14、 salty potato chips.b: we like them, too. a: so do i. 3a reading and answeringnow lets read to find out who invented tea. while you read, circle all the linking words and underline all the useful expressions.who invented tea?do you know that tea, the most popular drink in the world（after water）, was

15、 invented by accident? although tea wasnt brought to the western world until 1610, this beverage was discovered over three thousand years before that. according to an ancient chinese legend, the emperor shen nong discovered tea when he was boiling drinking water over an open fire. some leaves from a

16、 nearby bush fell into the water and remained there for some time. the emperor noticed that the leaves in the water produced a pleasant smell. later he decided to taste the hot mixture. it was quite delicious. and in this way, one of the worlds favorite drinks was invented. after you read, answer th

17、e 4 questions following the article.1. what is the article about?it is about the invention of tea.2.when was it invented?it was invented over three thousand years before 1610.3.who was it invented by?it was invented by shen nong.4. how was it invented?the emperor shen nong noticed that the leaves fr

18、om a nearby bush in the water produced a pleasant smell. he tasted the hot mixture. it was quite delicious.3b writing an articleon page 72 you will find notes in the box on the left. write an article using the notes about the invention of the flying disk.from pie plate to flying diska baker named wi

19、lliam russel 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 starte

20、d to bake a pie 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

21、and catching them. a decade 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-toss

22、ing craze at yale. and so 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.4a thinking and inventionwe all have things that we dont liking doing. why not think of an invention that c

23、ould help you. write the details of your invention in the chart on page 72. 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 repeats it in chinese.price10

24、0 yuan each4b 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 learning 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?a: when the yellow colo