寧夏銀川市第四中學九年級英語全冊 Unit 9 When was it invented.Section A 3a-4學案（無答案） 人教新目標版

1、unit 9 when was it invented.section a 3a-4學案一教學目標1知識目標： words and phrases talk about the history of inventions2能力目標：能在具體語境中正確運用被動語態(tài)。3情感目標：培養(yǎng)愛國主義精神。二學習重點：重點詞匯用法及一般過去時被動語態(tài)用法。學習難點：被動語態(tài)用法。二、資料準備：課本p69 sectiona3a 4 三、學習過程：step one: 自主學習1發(fā)明；創(chuàng)造 _ 2 計算器 _ 3用勺舀；勺子； _ 4可調(diào)整的 _5.后跟_ 6.電池_7.操作，作業(yè)_8. 電池供電的_9.拖鞋_1

2、0.加熱，使變熱_11. 電燈泡，電燈_12. 微波_ 二、預習自測：這些短語在課本中就能找到。1用來做 2.電燈泡 3. 微波爐_4.被發(fā)明 5.有舒適鞋跟的鞋子 6.每天 7. 整天 （聽力材料）1. 現(xiàn)代的發(fā)明_2. 上歷史課_3. 我的一些朋友_ 4. 在過去_5. 私人電腦_6 .上上下下_7. 的式樣_step two：合作學習 1. the telephone was invented by bell.（劃線提問）_ _the telephone _by. 2. the watch was made in japan. （變否定句） the watch _ _ _japan. 3

3、. we saw a bird in the tree. (變被動語態(tài)) a bird _ _in the tree. 4. paper is used for writing. （劃線提問） _ _paper _ for? 5. many things were invented by edison. (變?yōu)橹鲃诱Z態(tài)) edison _ _ _. step three: they are used for seeing in the dark. be used for doing sth. “被用來做-“ 相當于be used to do sth. stones can be used fo

4、r building houses.= stones can be used to build houses. 拓展： 1. be used to doing sth. 習慣于做某 im used to getting up early. 2. be used as 被用作- this word can be used as a noun. 3. be used by 被- 使用 this kind of machine is used by farmers for getting in crops(收割莊稼)做一做：1. 刀被用來切東西。 knives are used _ _things.

5、 = knives are used _ _things. 2. 英語在中國被用作第二語言。 english is used _the second language in china. 3.這本書的作者是韓寒。the book is_ _hanhan.1 in the end, finally, at last “最后” 1)in the end “最后，終于”可用于過去時態(tài)，也可預測將來。 we won the match in the end. he will be a teacher in the end. 2)finally 表示事情在長時間之后發(fā)生，用法同in the end 但f

6、inally 還可以用來表示順序的終結，此時不用at last. after three hours walk, he finally got there. there are three reasons why i hate him: first, hes rude; second, hes a liar; finally he owes me money. 3)at last 指經(jīng)歷長時間或周折，困難，終于向好的方向發(fā)展，有了好的結局。 at last he worked out the problem.2. by mistake 錯誤的 by accident 偶然，意外地 he put

7、 salt into his tea by mistake. i saw an old friend in the street by accident.3.not until“直到才” they didnt finish the work until yesterday evening.(譯成漢語)四：反饋達標：單項選擇1 sixteen-year-olds should_ work at night. a allow to b allowed to c be allowed to2 they _ seeing in the dark. a used for b used to c are

8、used for3 shoes_ adjustable heels can change the style. a and b with c for4 when _ the car_? a did, invent b was, invented c does, invent5 the light bulb is used for _ the dark. a in b at c during6 the flowers should _ often. a be watered b water c watered7 the pen is used _ a tool( 工具)_writing. a as, for b by, to c as, by8. we are_ by miss li. a teachers b taught c teaching9 i think it i