Unit 9 When was it invented? Section A Period 1

Four ancient inventions compass gun powder paper Moveable type printing

inventions light bulbs calculator abacus binoculars microwave oven

1885 1876 1927 1971 Guess A: When was the car invented? B: Well, I think it was invented in …. Guess 1885 1876 1927 1971

1885 1876 1927 1971 Guess A: When was the telephone invented? B: Well, I think it was invented in …. Guess 1885 1876 1927 1971

Groupwork 1a Look at the things. In what order do you think they were invented?

A: I think the calculator was invented before the computer. B: Well, I think the calculator was invented after the computer.

When were they invented? What is it called? bike light bulb

microwave oven alarm clock

Listening (1b: P68) Listen and give the dates. 1876年

1885年

1927年

1971年

1976年

Pairwork (1c:P68) Student A, cover the dates. Student B, ask student A when the things in the picture above were invented. Then change roles and practice again.

Sample dialogues: A: When was the telephone invented? B: I think it was invented in 1876. A: When was the car invented? B: I think it was invented in 1930. I think it was invented after the telephone.

C: I don’t think so. I think it was invented in 1873, so it was invented before the telephone. D: I don’t agree. I think it was invented in 1885 and it was invented after the telephone.

Listening (2a, 2b: P69) Listen and number the inventions in the order that you hear them. 3 1 2

3 1 2

high heels adjustable adj. 可调整的 adjustable heels

scoop heat 加热 ice cream scoop

slippers a battery batteries operate v. 操作

2b. Listen again. Match the inventions with their inventors and uses. Who was is/were they invented by? What is it/are they used for? shoes with adjustable heels Chelsea Lanmon scooping really cold ice cream battery-operated slippers Jayce Coziar and Jamie Ellsworth seeing in the dark heated ice cream scoop Julie Thompson changing the style of the shoes

Oral Practice (2c: P69) Role play conversations using the information below. Sentence pattern: What is it / are they used for? Who was it / were they invented by? It is / They are used for doing... It was / They were invented by ...

B: I think it was invented in ______. A: When was the _______ invented? B: I think it was invented in ______. 1976 1876 1971 1927 1885 1879

Sample dialogues: A: What is this? B: This is a heated ice cream scoop. A: What is it used for? B: It is used for scooping really cold ice cream. A: Who was it invented by? B: It was invented by Chelsea Lanmon.

Edison invented the light bulb. Who was the light bulb invented by? The light bulb was invented by Edison.

Bell invented the telephone. Who was the telephone invented by? The telephone ___________ by Bell. was invented

Karl Benz invented the car. Who was the car invented by? The car ______ was invented by _________. Karl Benz

A: What is the car used for? B: The car is used for traveling.

A: What is the _______ used for? B: I think it is used for _________________. talking with people A: What is the used for? B: I think it is used for _______. (count) counting

A: What is the used for? B: It is used for ______.(count) counting

A: What is the used for? B: I think it is used for ______.(work) working

A: What is the used for? B: I think it is used for _____.(ride) riding

pairwork A: When was …invented? B: It was invented in… A: Who was it invented by? B: It was invented by… A: What is the … used for? B: The … is used for doing…

Grammar Focus (P69) The passive voice 被动语态 在被动语态的句子中, 谓语部分的结构是be + 过去分词。被动语态的句子的时态变化反映在be动词上。也就是说, 把一个句子做成被动语态的句子, 只需要写出be动词的所需时态, 再加上所给动词的过去分词就行了。

当然, 这只是指谓语部分而言。我们知道, be动词作为一个独立的谓语动词有自己现在分词(being)和过去分词 (been)。那么, 下面我们来看看be 在各种时态中的变化形式：

一般现在时 am / is / are 一般过去时 was / were 一般将来时 shall / will + be 过去将来时 would / should + be 现在进行时 am / is / are + being 过去进行时 was / were + being 现在完成时 have / has + been 过去完成时 had + been

Make sentences 1. 世界上许多国家都讲英文。 English is spoken in many countries all over the world. 　　 　 2. 纸是中国发明的。 Paper was invented in China. 3. 这栋大楼是去年建造的。 The building was built last year.

4. 他父亲不会让他娶玛丽为妻的。 He won’t be allowed, by his father, to marry Mary. 5. 他们结束训练时将被派往部队。 They would be sent to the army when they finished the training. 　 6. 这个计划正在执行中。 The project is being carried out. 　

7. 那时这案子正在调查中。 The case was being investigated then. 　8. 这本小说已被译成了几种语言。 This novel has been translated into several languages. 9. 他们说生产成本已经下降了。 They said that production costs had been reduced.

be used for doing sth. 意思是“被用来做某事”，强调用途或作用。 练习： Sunglasses are used ________ protecting your eyes in sunny days. A. for B. to C. with D. in [答案和解析] A。be used for doing sth. 意为“被用来做某事”。

Practice Ⅰ. 根据汉语提示完成英语句子，每空一词。 (1) 伞是用来遮雨的。 The umbrella is used ____ ______ yourself from rain. (2) 我习惯于吃比萨。 I ___ ____ __ _____ pizza. (3) 我过去常常在放学后跳舞。 I ____ ___ ____ after school. for keeping am used to eating used to dance

Ⅱ. 根据句意, 用介词as, by完成下面句子。 (1) English is used ______ the second language in many countries. (2) These textbooks are used __ students. as by

Homework Review the Grammar Focus.

Thank You！