九年級英語全冊Unit9WhenwasitinventedSectionB1a1b2a2b2c3a學(xué)案無答案人教新目標(biāo)版

1、江西省萍鄉(xiāng)市蘆溪縣宣風(fēng)鎮(zhèn)中學(xué)九年級英語全冊 unit 9 when was it invented section b 1a 1b 2a 2b 2c 3a學(xué)案（無答案） 人教新目標(biāo)版導(dǎo)學(xué)目標(biāo):1基礎(chǔ)知識目標(biāo)： 1）掌握1a-3a的重點詞匯及短語。 bush remain notice produce pleasant mixture by mistake in the end by accident fall into in this way according to 2）重點句型： potato chips were invented by mistake. the emperor noti

2、ced that the leaves in the water produced a pleasant smell.3) 掌握一般過去時被動語態(tài)。2能力目標(biāo)：使學(xué)生學(xué)會正確運用被動語態(tài)談?wù)撋磉叺氖挛?、 學(xué)習(xí)策略（learning strategies）: scan reading 4、情感目標(biāo)：通過熟悉我們周圍的發(fā)明物的歷史來開闊眼界，豐富自己的閱歷使自己養(yǎng)成勤于思考，善于總結(jié)的好習(xí)慣。導(dǎo)學(xué)過程一、自主預(yù)習(xí)1)預(yù)習(xí)以下單詞和短語1脆的_ 2咸的_ 3酸的_ 4錯誤的_ 5廚師_ 6撒，灑_7 廚師 _ 8 古代_ 9.留下；保持不變_10 偶然地_ 11 落入；陷入_ 12用這種方法_ 1

3、3.按照；視。而定_ 14錯誤地_2)單項選擇1. wood can be used for _ desks .a making b to make c made d make 2. _ do you think the light bulb was invented _ ?_ no, i dont think so .a by mistakes b by mistake c for mistake d with nistakes 3. i think potato chips are not _ .a thinner b thin enough c enough thin d thinner

4、 enough 4. the boy makes the teacher _ .a angry b angrily c happily d angrilier5. he sprinkled lots of _ on them so they were really _ .a salty, salty b salt, salt c salty, salt d salt ,salty二、學(xué)案導(dǎo)學(xué)step1. greeting and check the homework.step 2. free talk:ask the students to practices talking to each

5、other about some inventions.a: what do you think is the most helpful invention?b:i think the most helpful invention isa: why do you think so?b: well, it gives mestep 3 presentation1. show some pictures of food and drink. ask students what they are.2.then ask the students to describe how food tastes.

6、 3.learn some new words: sweet, crispy, salty, sour, delicious, hot, awful, nicestep4. finish the task of 1a and 1bstep5. listening practice2a. listen and circle “t” or “f”.2b. complete the sentences.languages points:in the end by mistake by accident according tostep6. 2c pair wo rk : a: do you know

7、 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 because they were cut too thick. george cut the potatoes really, r

8、eally 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, salty potato chips.b: we like them, too. a: so do i.step7 3a re

9、ading practice 1. listen to the passage first.2. give students a few minutes to read the passage and try to find the answers to the questions.3. explain some language points.step8 go over the whole lessons.四、課堂測評（一）根據(jù)首字母填詞 1 i took your dictionary by m_ .2 the milk is s_ .you cant drink it any more

10、.3 mum added salt to the soup , but it wasnt s_ enough .4 do you know the movie star c_ liu ruoying ?5 p_ are used for making potato chips .（二）用正確單詞填空。1theyd like to be _ (chef) one day .2 i _ (tell) that our school team won the game yesterday .3 last year ,vegetables _ (grow) in the garden by nick and he _ (sell) them himself .4 liu mei _ ( not have ) breakfast yesterday morning .（三）完成句子，每空一詞 。 1 你昨天錯拿了我的手機(jī) 。you took my mobile phone _ _ yesterday .2