问题 解答题

某校初三(2)班的师生到距离10千米的山区植树,出发1个半小时后,张锦同学骑自行车从学校按原路追赶队伍,结果他们同时到达植树地点,如果张锦同学骑车的速度比队伍步行的速度的2倍还多2千米.

(1)求骑车与步行的速度各是多少?

(2)如果张锦同学要提前10分钟到达植树地点,那么他骑车的速度应比原速度快多少?

答案

(1)设步行的速度为x千米/时,(1分)

根据题意得

10
x
-
10
2x+2
=
3
2
,(3分)

解得x1=4,x2=-

5
3

经检验x1=4,x2=-

5
3
都是原方程的解,

x=-

5
3
不合题意,舍去,(4分)

当x=4时,2x+2=10.

答:队伍步行的速度是每小时4千米,张锦骑车的速度是每小时10千米(5分)

(2)由(1)可得张锦骑车用时:

10
2x+2
=1(小时),

若提前10分钟,即用时

5
6
小时,

则骑车速度为:

10
5
6
=12(千米/时),12-10=2(千米/时),

答:如果张锦提前10分钟到达,那么骑车速度应比原速度每小时快2千米.(6分)

阅读理解

阅读理解。

     Barcelona is regarded as Spain's second city, behind capital Madrid. The city is rich in history. Barcelona

was founded by Carthaginians and according to tradition, it got its name from the great Barker family of

ancient Carpage. After numerous different conquers, including the Romans and the Moores that seriously

damaged the city, the Argons made Catalonia, of which Barcelona was the capital. Strong and prosperous,

since the 1970s, the city has formed its Catalon background. But it wasn't until the summer Olympics in 1992

that Barcelona became the modern, lively city that it still is today. And with this prosperity have come

wonderful hotels. The Raewon Callas the 1st was opened in 1992, by the King and Queen of Spain.

     With buildings like the Casa Cal Bain and the Casa Minga, Antony Gaudy is believed to have made great

impact on the image of Barcelona. He also built the fantastic Park Quell. Antony Gaudy died in 1926, leaving

an unfinished cathedral as his epitaph (墓志铭).

     There are the attractions of coming to Barcelona?

     There are many, many different attractions: culture, leisure, monuments, our architecture, and the

gastronomy (美食). Barcelona has commercial areas and shopping areas of five kilometers that goes around

to the sea to the north. You can also see our architecture, our monuments, our museums, and our restaurants.

So there is a mix between shopping and services.

     One label that's hot among fashion consciousness is MIRO, and these trendy designs of clothing and shoes

originate in Barcelona. The region itself now produces for other international labels, like for the Gallic giant

Lacose.

     No visit to the city would be complete without a tour of the Nou Camp, the home of one of Spain's finest

teams, Barcelona Football Club. FC Barcelona was founded in 1899 along with the other Spanish team, Real

Madrid. It's one of the greatest football teams in Europe. With players like Maradona and Ronaldo having

played for Barca, it's easy to explain their success! FC Barcelona is known to have won more cups than any

other team in European football history. The stadium, the Nou Camp, can hold one hundred and twelve

thousand people, making it one of the greatest places to watch and play "the beautiful game".

1. This passage is most probably taken from _____. [ ]

A. a history book

B. a government document

C. a geography book

D. a travel book

2. The first paragraph is mainly about the _____ of Barcelona. [ ]

A. history

B. famous buildings

C. big events

D. present

3. Who is believed to have greatly affected the image of Barcelona? [ ]

A. Antony Caudy

B. The great Barker family of ancient Carpage

C. The King and Queen of Spain

D. The Romans

4. Which of the following is NOT among the attractions of Barcelona? [ ]

A. Culture

B. Sports

C. Architectures

D. Theatres

5. In the last paragraph, the author intends to _____. [ ]

A. highly praise Barcelona Football Club

B. tell us the development of FC Barcelona

C. tell us how to end our tour in Barcelona

D. tell us the great success of Spanish football

名词解释