Unit 6When was it invented?

Period 4

Section A 4a-4c

Review When was …

invented ?It was invented

in…What is it used

for ?It is used for…

New wordsfridge /fridʒ/ n. 冰箱translate /trænsleit/ v. 翻译lock /lɔk/, /la:k/ v. 锁上；锁住 earthquake / ə:(r)θkweik/n. 地震

sudden /sʌdən/ adj. 突然（的）all of a sudden 突然 ; 猛地 biscuit /biskit/ n. 饼干 cookie/kuki/ n. 曲奇饼干 instrument /instrumənt/ n. 器械； 仪器；工具

When was the zipper invented?

It was invented in 1893.

Who was it invented by?

It was invented by Whit comb Judson.

When was tea brought to Korea?

It was brought to Korea during the 6th and 7th centuries.

What is the hot ice-cream scoop used for?

It’s used for serving really cold ice-cream.

The passive voice 被动语态 语态是表示主语与谓语的关系的。如果主语是动作的执行者，动词要用主动语态；反之，如果主语是动作的承受者，动词就要使用被动语态。 被动语态谓语部分结构为助动词 be + 过去分词。

一般过去时态的被动形式

注意：这里 be 的形式决定了被动语态的时态，其后的过去分词没有变化。

肯定句 主语 + was\were + 过去分词 + (by …)否定句 主语 + was\were not + 过去分词 +(by …)一般疑问句 was\were + 主语 + 过去分词 + (by …)?特殊疑问句 疑问词 + was\were + 主语 + 过去分词 + (by …)?

时态 肯定形式 否定形式 疑问形式一般过去时

S +was/were

+done

S +was/were

+not + doneWas /Were+S + done?

Maria bought the book last year. ( 主动句 )

The book was bought by Maria last year.

When was the book bought by Maria?

What was bought by Maria last year?

被动句：

让我们看一看各种句型的主动语态变为被动语态时，到底发生了什么变化？

把下列句子改为被动语态。1. They made these computers in Shenzhen. These computers ____ _____ in Shenzhen.2. She bought a new bike yesterday. A new bike ____ ______ by her yesterday.

were made

was bought

中考真题链接中考真题链接1. — I feel very happy that I ____ to be

the host. — Congratulations! (07’ 江西 ) A. choose B. am chosen

C. was chosen D. haven chosen 2. Today Chinese ________ by more and

more people around the world. (07’ 北京 ) A. was spoken   B. is spoken  C. spoke  D. speak

4a Rewrite the sentences using the passive voice. 1. They sold the fridge at a low

price. The fridge was sold at a low price.

2. Somebody stole my camera from my hotel room.

3. Where did you take these photos?

My camera was stolen by somebody from my hotel room.

Where were these photos taken by you ?

4. Our parents advised us not to go out alone.

5. Different writers translated the book into different languages.

We were advised not to go out alone by our parents.

The book was translated into different languages by different writers.

4b Complete the sentences with the correct forms of the verbs in the box.

1. You to the party last night, weren’t you? Why didn’t you go?

2. The earthquake all of a sudden, but luckily the villager

s to a safe place.

were invited

came

were brought

3. The door when we arrived, so we the bell.

4. The students not to eat or drink in class. But

Ruby the rule when she started eating a biscuit in

science class. 5. The cookies by the hungry kids in less than 20 minutes. Then they for more!

was locked rang were told

broke

were eaten

asked

4c Decide whether active or passive forms should be used in these sentences. Write the correct forms in the blanks

The telephone (invent) by Alexander Graham Bell. He (born) in 1847. Alexander (work) on the invention of the telephone with Thomas Watson. In 1875, Alexander (learn) to send musical notes through an instrument similar to a telephone.

was invented was born

worked

learned \ learnt

Finally, the telephone (invent) in 1876. The first sen

tence that (say)on the telephone by Alexander

was “Mr. Watson, come here; I want to see you.” Today the telephone (use) around the world.

was invented

was said

is used

Summaries 1. at a low price 以一个很低的价格 2. take these photos 拍这些照片 3. go out alone 单独外出 4. translate the book into different language 把书翻译成不同种类的语言5. all of sudden 突然 6. work on 从事，进行

用所给词的适当形式填空。 1. This instrument is used for (play)

music in class. 2. How many magazines

(borrow) from the library today? 3. Edison was a great inventor. He had over

1.000 in his life. (invent). 4.A picture (put) on the

blackboard before class. 5. Plates and dishes (not wash)

after supper yesterday.

playing

were borrowed

inventionswas put

weren’t washed