4．
In the movie 2012，the volcano （火山） in Yellowstone National Park erupts，smoke flies thousands of meters into the air，and car-sized pieces of stone and ash （灰燼） fly out．
Now，some scientists say，it's very possible that the Yellowstone volcano will soon erupt in real life for the fourth time in history，after about 640，000years．According to the Daily Mail，the volcano in the Yellowstone National Park，Wyoming，US，has been rising at a record rate since 2004．Its magma（巖漿）surface has gone up 3inches （7.6centimeters） per year over the last three years alone．This rise is one of the key signs that a volcano is about to erupt．However，scientists are not certain when the eruption will happen or what it will cause．
Unlike what happens in 2012，a volcano eruption would not destroy the whole world，but it could cause huge damage to people living nearby．
The famous eruption of Vesuvius in 79AD destroyed the ancient Roman city of Pompeii．The 2010eruption of the Iceland Volcano caused more than 800people to lose their homes and many airports in European countries to shut down for a few days．
There are more than 1，500active volcanoes in the world．A volcano is considered active if it has erupted in the last 10，000years．
In ancient times，more than 80percent of the earth's surface was volcanic．Volcanic eruptions formed the sea floor and some mountains over many years．Gas from volcanoes formed the earth's atmosphere．
Volcanoes come from very hot liquid rock，called magma，inside the earth．When magma comes upward and breaks through the earth's surface，it forms volcanoes．
The rising magma heats water，which leads to explosions of steam．This pushes rocks and ash high into the sky．Three different things erupt from a volcano：hot liquid rock，volcanic ash and gases．
42．The writer says something about the movie 2012in Paragraph 1toD．
A．remind readers that 2012is coming
B．a(chǎn)dvertise the movie
C．a(chǎn)ttract readers'interest in the movie
D．introduce the topic of volcanoes
43．According to Paragraph 2，a volcano will probably erupt ifB．
A．it has a history of about 640，000years
B．its floor has been rising for a few years
C．it has erupted three times in history
D．its floor goes down three inches each year
44．Which of the following statements is TRUE？C
A．The eruption of Vesuvius in 79AD destroyed ancient Rome．
B．The 2010eruption of the Iceland Volcano caused the greatest losses in history．
C．An active volcano may not have erupted in the last 10，000years．
D．Volcanic eruptions helped form the sea floor，some mountains and the atmosphere．
45．Which of the following is the best title for the passage above？B
A．What is"2012"
B．Volcano
C．magma
D．gases．
Julio loves to visit his grandmother．He doesn't get to visit her very often because his family lives in a city that is six hours away．His grandmother lives in a big wooden house on a farm．It is old and looks as if it has secret hiding places．
How often do you use your car？Can you use your car less often？Do you know the following facts in the UK？
