题目内容
As a friend of the earth, we promise _________ rubbish.
A.to not leave B.not to leave C.don’t leave D.leaving no
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学练快车道口算心算速算天天练系列答案Do you know extreme(极限) sports? Let me tell you something about them. Extreme sports are often dangerous. But some people like them. They want to do them, even women. Do you know why? One said, "Because they can make me so excited." Do you think so? Most of people say they are mad(发疯的).
| Bungee Jumping: People on some South Pacific (太平洋) islands have been bungee jumping for hundreds of years. In 1979, some people bungee jumped off a bridge in England and made the sport popular around the world. Bungee jumping came to China in 1996. |
| Skateboarding: At first, this sport was called "sidewalk surfing". Skateboarders often jump high into the air, go down steps or slide(滑动) down rails on their boards. They wear baggy trousers so they can move more freely. |
| Skydiving: This is the scariest(惊险的) extreme sport. Skydivers jump out of airplanes about four kilometers up in the sky. They usually fall freely for a while and then open a parachute to slow down for a safe landing. |
| Snowboarding: This became a winter Olympic sport in 1998. People tied their feet to the board with special shoes. They don't use any ski sticks. Then, they ride down hills, jump high and do tricks. |
根据短文内容，完成下列小题。
1.Are extreme sports exciting?
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2.Are these extreme sports safe or dangerous?
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3.Which one is the scariest?
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4.Why do many people like these sports?
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5.What does the passage mainly tell us?
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