内容正文:
Unit 4 Amazing Science
Topic 1 When was it invented? Section A
【基础训练】
单选
( )1.The laptop _____ in Japan in 1985. It is used for studying.
A.is developed
B.was developed
C.developed
D.develops
( )2.Now more and more man-made satellites are _____ by humans.
A.sent for
B.send up
C.sent up
D.sent into[来源:学科网]
( )3.I was made _____ this or that while working as a waiter in this hotel.
A.do
B. doing
C.to do
D.did
( )4.After hearing the funny joke, my father can’t help _____.
A.laugh
B.laughing
C.to laugh
D.laughs
( )5.—My parents don’t allow me _____ computer games at school.
—That’s right. They are bad for your study.
A.play
B.plays
C.playing
D.to play
【能力提升】
阅读理解
The Internet joins millions of computers all over the world, and today it is used by people all over the world. It was invented in the 1960s in the USA. The American government needed a network of computers for its army. Then in the 1970s scientists and business people also wanted to use the Internet to send and receive messages. For some years,they weren’t allowed to use the US network,and when they were allowed to,the messages were in very simple text without photos.
The World Wide Web was invented by a British scientist named Tim Berners-Lee in 1989. He wanted to send documents to other scientists. So he developed the World Wide Web. This allowed him to send and receive scientific documents with text,drawings and photos. In the 1990s,more and more people began to use the Internet and the World Wide Web.
So what’s the difference between the Internet and the World Wide Web? The Internet is the hardware. It allows us to communicate with other people. The World Wide Web is the software. It allows us to create, see and read multimedia documents.
The web is made up of millions of documents called web pages. These pages are held in computers all over the world. Many people have a favorite website with a number of web pages on the same subject.
Email is a way of using your computer to send and receive m