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《When was it invented?》SectionA PPT课件(第1课时)

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《When was it invented?》SectionA PPT课件(第1课时) 详细介绍:

《When was it invented?》SectionA PPT课件(第1课时)《When was it invented?》SectionA PPT课件(第1课时)

人教版九年级英语上册《When was it invented?》SectionA PPT课件(第1课时),共17页。

Look at the things below. In what order do you think they were invented? Discuss them with your group. Then number them [1-4](1=first, 4=last).

A:I think the TV was invented before the car.

B:Well, I think the TV was invented after the car.

Student B, cover the dates. Student A, ask Student B 

when the things in the picture in 1b were invented. 

Then change roles and practice again.

A:When was the telephone invented?

B:I think it was invented in 1876.

Language Points

1.invent的用法

invent v. 发明,invention n. 发明,inventor n. 发明者。    

e.g.:Edison was a great inventor.He invented a lot of things.

【辨析】 invent,discover,find与find out

①invent 意为“发明,创造”,主要通过想象、研究、劳动创造出前所未有的东西,尤指科技上的发明创造。

②discover 指发现或偶然发现原来就存在但一直未被认识的事物。

③find 强调寻找的结果,即“找到”,通常指偶然发现。

④find out 指经过观察、调查,把某事、某物查出来,搞清楚、弄明白。

2. Is it really such a great invention?

such 形容词,意为“这样的,如此的”,常用在句中作定语,

其结构为“such (a/an) +adj.+n.”。

e.g.:There's no such thing as a free lunch.

Why do you buy such expensive clothes?

3.Think about how often it's used in our daily lives.

daily 形容词,意为“每日的,日常的”,用作lives的定语。

e.g.:What is your daily work?

daily还可以作名词,意为“日报”。

People's Daily 《人民日报》 China Daily《中国日报》

Exercise

一、单项选择。

(    )1.Flash light can be used _____ clearly in the dark.

A.for seeing                B.to seeing

C.looking                    D.for looking at

(    )2.—When was the car invented?

—It _____ in 1895.

A.invented        B.is invented      C.was invented

(    )3.The computer was invented _____ lives.

A.as our day                   B.in our day

C.as our everyday           D.in our daily

(    )4.Computer is _____ a great invention that it's _____ the world a lot.

A.so;changing                B.such;changed           

C.such ;change               D.so;changed

二、用所给词的适当形式填空。

1.The teacher's office  _______ (clean) by us yesterday.

2.The ______ (invent) has a lot of _________(invent).

3.MP3 is used for _________ (play) music.

4.—Can you help me?

—With ________(please).

... ... ...

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