Good morning, boys and girls．My name is Frank Johnson．Now let me tell you something about our museum．To you maybe it's just four white walls and a ceiling（天花板），but to us it's a treasure．Here you'll see some of the best British physicists（物理学家）．For example，you'll see Newton，who was born in 1642．He went to study at college in 1661．During the years 1665—1666，he made his most important discoveries．It is said that Newton got Iris idea when an apple fell on his head! Another British physicist William Thomson went to study at college when he was just ten years old．He became a professor（教授）at the age of 22．He found clear relationships among heat，work and energy．And of course，James Watt，the famous engineer! At the age of 20．he began to make useful things at college．He improved the steam engine（蒸汽机）and made it more powerful．

OK，boys and girls．You may go and see it now．Have fun!

1．How many British physicists are mentioned（提到）in this passage?

A．One．                 B．Two．                C．Three．                  D．Four．

2．How old was Newton when he went to study at college?

A．10．                   B．19．                    C．22．                   D．23．

3．What did the speaker mean when he said “… to us it's a treasure”?

A．The walls and ceiling in the museum were beautiful．

B．There was a lot of treasure in this museum．

C．Workers in this museum were very rich．

D．He was really proud of this museum．

4．Who found clear relationships among heat，work and energy?

A．Frank Johnson．                                     B．Newton．

C．William Thomson．                                    D．James Watt．