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Three boys, Tom, Sam and Jim bought seventeen apples. Tom wanted the half (一半). Sam wanted one-third (三分之一),and Jim wanted one-ninth (九分之一)? But they didn’t know how to do.
Just at that time,a little boy came with an apple in his hand. The boy said to them, “Don’t worry. Let me help you” Then he put his apple into their apples, and made the number of the apples eighteen. Then he gave Tom nine apples, he gave Sam six apples,and he gave Jim two apples. He gave away seventeen apples and took his apple back.
The three boys were very happy. And they said: “How clever the boy is!”
根据短文内容,选择正确的选项。
【小题1】There were___apples when the three boys divided(分配)them.
A.fifteen | B.sixteen | C.seventeen | D.eighteen |
A.They couldn’t eat the apples. | B.They couldn’t go home. |
C.They couldn’t divide the apples. | D.They wanted to borrow some apples, |
A. He put his apple into theirs when he divided the apples. |
B. He kept an apple to divide the apples. |
C. He got one apple from another man. |
D. He ate an apple before he divided them. |
A. The three boys asked the little boy to divide their apples. |
B. The little boy told them how to divide their apples. |
C. The little boy wanted to help them. |
D. The little boy wanted to take away their apples. |
A.这个男孩是多么地感激啊! | B.他怎么样才能聪明啊! |
C.这是一个什么样的男孩啊! | D.多么聪明的男孩啊! |
(2)(2分)物质的量浓度均为0.1 mol/L的下列溶液pH 由大到小的顺序
(用序号表示)
①CH3COOH ②NH4Cl ③NaHCO3 ④Ba(OH)2 ⑤NaOH ⑥N a2CO3
(3)(2分)物质的量浓度相同的下列溶液按c(CO32-)由大到小的顺序是____________
①Na2CO3 ②NaHCO3 ③H2CO3 ④ (NH4)2CO3 ⑤NH4HCO3 查看习题详情和答案>>
你们班上转来一位新同学,下面是她的学籍卡片。假设今天你值日,请用英语把这位同学介绍给大家。80词左右。(注意人称)
Name: Linda Smith Age:13 Height:1.51m Weight:48kg Hobbies: listening to music, reading and playing football Telephone:86735342 Address:341 Red Street |
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What do you think life on earth will(A)________in 100 years? More comfortable ?More high-tech? Maybe. But many scientists see a different future. (B) They say that by the year 2100 the earth will become a worse place for us to live.
Greenhouse gases like carbon dioxide(二氧化碳)are warming up the earth, melting(熔化)ice, and raising the level of the oceans. All these changes may bring more disasters( 灾难),including earthquakes and floods( 洪涝).
Sounds scary, doesn’t it? Luckily, things may become so bad. Most countries in the world have agreed to slow down earth warming.
In February, the Kyoto Protocol (京都议定书)began.(C) 这是全世界141个国家间的协议。 They want to produce less greenhouse gas and slow the rising temperature. (D) By 2010,35 developed countries will cut greenhouse gas by 5 percent of the amount they produced in 1990. (E) In order to produce less greenhouse gas, countries have to use cleaner cars and fewer coal power stations. They also need to look for new types of energy(能源).Countries that signed the agreement include China, Japan, Russia and the countries in the European Union( 欧盟).
1.在(A)的空白处填入一个适当的词语:________________
2.将划线部分(B)译成汉语:___________________________
3.将划线部分(C)译成英语:________________________
4.将划线部分(D)译成汉语:______________________________
5.将划线部分(E)改写为:Countries have to use cleaner cars and fewer coal power stations _____________they can produce less greenhouse gas.
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