内容正文:
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A
Do you believe stones can move by themselves?There are some stones that can move in Death Valley of the USA.Many of the stones are small,but a few of them are big.The biggest stone weighs about 350 kg.
The stones only move at night.Nobody has seen them moving,but now scientists know why the stones can move.The answer is the wind.When the wind comes from the west,the stones move to the east.When the wind is from the south,they always move to the north.But how can the wind move the heavy stones?
Death Valley is one of the hottest places in the world,but it can be very cold at night.Sometimes,there are even storms at night.Rain falls,and the wind is strong and cold.The water on the ground turns into ice easily.Then the strong wind can move the stones along the flat (平的) ground.In the morning, the sun comes up and dries the ground.Then people can find the stones move from one place to another in the daytime.
1.Death Valley in the USA is famous for ________.
A.the rain B.the wind C.the storms D.moving stones
2.The stones move mainly because of ________.
A.ice B.the storms C.the wind D.the flat ground
3.If the wind comes from the northwest,the stones will move to ________.
A.the west B.the east C.the northwest D.the southeast
4.Which of the following is NOT mentioned in the text?
A.Nobody has seen the stones moving.
B.Many tourists go to visit Death Valley every day.
C.Some stones are small,but others are big in Death Valley.
D.The strong wind can move the stones along the flat ground.
5.What's the best title for the text?
A.Terrible Storms B.The Weather of the USA
C.Moving Stones in Death Valley D.The Hottest Place in the World
B
David is a truck driver.Recently,he was thought to be a great man.
Last Monday,he was driving along the road with his son and his friend.Suddenly,he saw a car hit another truck and catch fire.The accident was just in front of his truck.Without thinking,he stopped his truck,found a fire extinguisher