It’s strongly recommended that the machines _________ every year.
A．are checked B．should check C．checked D．be checked
夺冠训练单元期末冲刺100分系列答案科目：高中英语 来源： 题型：阅读理解
This chart shows the top 10 songs from TOP HITS HOT 100 of the week ending July 8,2003.
| This Week | 1 Week Ago | 2 Weeks Ago | 3 Weeks Ago | Title | Performer, Lyricist, Producer, Record Company | Weeks on Chart |
| 1 | 3 | 5 | 9 | BACK FOR GOOD | Take That G Barlow Chris Poter And Gary Arlow BMG | 10 |
| 2 | 2 | 1 | 2 | RUN AWAY | The Real McCoy J Wind, Oickmix, Jeglitzs Fresh Line And Bermarr Brothers MBG | 11 |
| 3 | 1 | 2 | 3 | HERE’S JOHNNY | Hoeus Pocus Xtro And Cubrick Xtro And Cubrick Central Station Records | 9 |
| 4 | 4 | 3 | 5 | TOTAL ECLIPSE OF THE HEART | Nieki French Jim Steiman J Spingate Shock | 10 |
| 5 | 5 | 4 | 1 | THINK TWICE | Celine Dion A Hill And P Sinfild Christopher Neil Sony | 12 |
| 6 | 9 | 12 | 14 | SUKIYA KI | 4 Pm H Nakamura Veit Renn Folygram | 3 |
| 7 | 8 | 17 | 19 | MOUTH | Merril Bainbridge Ross Fraser George Siewooi And Owen Boeweell BMG | 8 |
| 8 | 19 | 31 | 77 | EVERYB ODY ON THE FLOOR | Tokyo Ghetto Pussy Tokyo Ghetto Pussy Trancy Spacer Stony Records | 4 |
| 9 | 6 | 9 | 13 | COTTO N EYE JOE | Rednex Jan Ericsson Pat Reiniz BMG | 107 |
| 10 | 14 | 14 | 34 | STRON G ENOUG H | Sheryl Crow, David Baerwald, Kevin Gilbert, David Rickett＆Brain Macleod Bill Bottrell Polygram | 7 |
63．The song that has risen most in the chart over the three weeks is .
A．Mouth B．Cotton Eye Joe
C．Strong Enough D．Everybody on the Floor
64．Which song has been in the chart for the longest period?
A．Back for the Good B．Cotton Eye Joe
C．SUKIYAKJ D．Strong Enough
65．The performer who had the song with best rank two weeks ago is .
A．Merril Bainbridge B．H Nakamura
C．The Real McCoy D．Tokyo Ghetto Pussy
66．The chart shows that Mouth is .
A．becoming less popular each week B．becoming more popular each week
C．the most popular song on the chart D．as popular as when it entered the chart
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科目：高中英语 来源： 题型：阅读理解
Force other than damaging winds are also at work inside tornadoes. Sometimes, as the turning, jumping funnel(漏斗) passes over a house, the walls and ceiling burst apart as if a bomb had gone off inside. This explosion(爆炸) is caused by the low air pressure at the center of a tornado.
The pressure at the center of a tornado is usually 13 pounds per square inch. However, inside the house the air pressure is normal, about 15 pounds per square inch. The difference of 2 pounds per square inch between the inside and outside pressure may not seem like much. But suppose a tornado funnel passes over a small building that measures 20 by 10 by 10 feet. On each square inch of the building, there is 2 pounds of pressure from the inside that is not balanced by air pressure outside the building. On the ceiling, that adds up to an unbalanced pressure of 57,600 pounds. The pressure on the four walls adds up to 172,800 pounds.
If windows are open in the building, some of the inside air will rush out through them. This will balance the pressure inside and outside the building. But if the windows are shut tightly, the great inside pressure may cause the building to burst.
Unfortunately, heavy rain happens in thunderstorms that later produce tornadoes. So, people often shut all windows to protect their property. This may cause far worse damage later.
1. Which of the following is the main topic of the passage?
A. Where tornadoes are formed. B. When tornadoes usually occur.
C. How tornadoes can be prevented. D. Why tornadoes cause so much damage.
2. According to the passage, tornadoes can destroy building because the _____.
A. force of a tornado increases the air pressure in a building
B. air pressure at the center of a tornado is over 172,000 pounds
C. weight of a tornado can crush a building’s roof when it passes overhead
D. air pressure inside a tornado is less than the air pressure inside a building
3. According to the passage, the pressure on a building during a tornado can be reduced by _____.
A. closing the windows B. opening the windows
C. using an electric fan D. making the roof and walls stron
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