Benjamin Franklin was a great scientist .He was the youngest of the
46 boys in his family . He was a clever boy,
47 cleverer than his nine brothers . He studied in school for only three years . He
48 to learn new things .He
49 worked on new ideas even when he was a child . There are a lot of stories about him and here’s one of them.
One day in winter Benjamin Franklin learned from one of his
50 that something black in colour holds heat
51 than something white in colour “ Is that true ?” he asked himself . He wanted to know the answer.
It happened to be a
52 day and there was snow on the ground. He put two large pieces of cloth over the snow . One piece was black in colour and the other was white . The sun shone (照耀)
53 the two pieces of cloth .Two hours later ,Franklin took off the cloth and found that the snow under the black cloth melted (融化) more
54 than the snow under the white cloth.
He was happy that he had learned
55 from his friend.
| 【小题1】 | | A．eihgt | B．nine | C．ten | D．eleven |
|
| 【小题2】 | | A．less | B．more | C．little | D．much |
|
| 【小题3】 | | A．started | B．will like | C．wanted | D．liked |
|
| 【小题4】 | | A．seldom | B．always | C．hardly | D．never |
|
| 【小题5】 | | A．classmates | B．brothers | C．friends | D．teachers |
|
| 【小题6】 | | A．slower | B．wore | C．better | D．longer |
|
| 【小题7】 | | A．bad | B．fine | C．cloudy | D．rainy |
|
| 【小题9】 | | A．easily | B．quietly | C．slowly | D．quickly |
|
| 【小题10】 | | A．all things | B．everything | C．anything | D．something |
|
；
；
；
个数：
．
，
，求ab的值。
(2) 
，
互为相反数，
，
互为倒数，
的值.
