中学英语教学课件9

The system will have cameras in public places, and it also can receive pictures from mobile phones.
Post-writing
难点解析
To get a picture of a person’s face, the system will have cameras in public places. 为了得到人们的面部照片，系统将在公共场 所安装相机。 To get a picture of a person’s face 是动词不 定式做目的状语。 例：To be a top student, Lily works hard on her lessons.
Detailed reading
Read again and say whether the statement is right or wrong
W
R
W
R
The system can look through 2.56 million faces per minute. The system can check the distance between the eyes to identify a person. If someone takes away his glasses, the system will find it difficult to make a match. It will be easy for China to build a facial picture database.
…, it will be easy for China to build a facial picture database, …. it 为形式主语, 动词不定式为真正 主语. . e. g. It’s hard for me to eat two burgers at a single meal.
The system then compares these features against a computer database of pictures to find a match.
系统将这些特点与数据库的照片相 比较从而找出与之相对应的照片。
Even if a person’s face is dirty, has makeup, or glasses are taken away, the system still can recognize it. 即使人的脸脏，抹了化妆品，或摘 了眼镜，系统仍能辨认。 Even if 即使 Even if you are tired, you still have to finish theBiblioteka Baiduwork in time.
Do you know there is an invention called a Face Recognition System? Can you guess what it is used for?
While reading
Let’s read an article about it quickly, and tell what it is used for. It is used to identify a person.
Your face is the best ID ☺☺
北京市八一中学 杨军静
Pre-reading
Do you know him?
Edison
Talk about your future inventions with your partner.
If you were an inventor like Edison, what would you invent? Why would you invent it? What would it be used for?
Read and write
Write the answers
When will China start the system? China will start the system in the near future. How will the system get a picture of a person’s face?
句法驿站
The new system was invented (发 明) by Professor Su Guangda from Tsinghua University. 被动语态: be + done + by … 被… 例: The glass was broken by a naughty boy.
词法驿站
recognize v. 认出,识别 Recognition n.认出,识别 e.g.I recognized Mary in the photo.
She hoped she would avoid recognition by wearing dark glasses and a hat.