Passage 1

　　A tornado(龍卷風(fēng))can do a lot of damage.The wind of a tornado rushes at great speed around a funnel-shaped(煙囪狀的)cloud.It travels in a path a few hundred feet wide and about twenty-five miles long.As the wind circles counterclockwise(逆時(shí)針?lè)较虻?，the funnel spirals(盤旋上升)higher and higher.The force of the wind sucks up water,dirt,and objects,and carries them along with it.It may drop them again many miles away.Houses and huge trees have been drawn into tornado funnels.At sea,ships have been nearly sunk by tornadoes dropping water on them.

　　East of Australia,people talk about a “rain of blood”。This is caused by a tornado picking up red dust and mixing it with water to make red rain.There are even stories about a rain of fish and frogs caused by a tornado sucking them up and then dropping them.

　　1)The path of a tornado is usually________.

　　A.short and narrow

　　B.wider than it is long

　　C.longer than it is wide

　　D.both A and B

　　2)the wind in a tornado usually travels________.

　　A.straight up

　　B.up and around

　　C.own

　　D.down and around

　　3)Ships have nearly been sunk when tornadoes have ________.

　　A.dropped water on them

　　B.drawn them into the funnel

　　C.blown them in the wrong direction

　　D.dropped trees on them

　　4)The “rain of hlood”east of Australia is made of ________.

　　A.fishes and frogs

　　B.red dust and water

　　C.rusty water

　　D.real blood