kilometres per hour in 12 seconds, produces no gas and is as quiet as a laptop computer — but that could...车加大油门时的轰鸣声) as they are worried its silence might be dangerous. They are planning to introduce an artificial engine noise ……

HAWAII — Quiet signs that a huge chunk of a Hawaiian mountain may fall into the sea — perhaps touching off a dangerous tsunami, or sea wave — were recently recorded by several sensing instruments ……

a bike like this? It is the oldest kind of bike: the high wheel bike (高轮自行车). A Frenchman invented... dangerous. That is because it’s about 1.5 meters tall and people sometimes fall off. TEENS ……

about a bike like this? The high wheel bike (高轮自行车) is the oldest kind of bike. A Frenchman made... also be very dangerous. That is because it’s about 1.5 meters tall and people sometimes fall off. TEENS ……

变身单车一族，享受骑行快乐。词数 180 测试见IV版 建议阅读时间 6分钟When I was a kid I used to ride my bike everywhere. But as I got older I stopped riding. It can be very dangerous to ride a bike in cities in Australia ……

变身单车一族，享受骑行快乐。词数 180 测试见IV版 建议阅读时间 6分钟When I was a kid I used to ride my bike everywhere. But as I got older I stopped riding. It can be very dangerous to ride a bike in cities in Australia ……

pecked (啄) a man who was riding a bicycle. The bird drove him off the bike and went on pecking him... it was a quiet and peaceful experience.Trappe had planned the flight for several months. In April, he ……

that Iron Man suit is _____.A. dangerous B. heavyC. expensive D. quietDay 5 ClozeAfter the school year... couldn’t ride a bike very well. One day, I got into a(an) 3 . But don’t worry, everything is okay – I ……

have made efforts to make cycling (骑行) easier and more popular. In the US, Bike to Work Day is held... of Denmark, is the world’s most bike-friendly city. During rush hour, traffic lights are always ……

university I didn’t even own a bike anymore! It can be very dangerous to ride a bike in cities...骑行在北京，出行新选择。词数 250 测试见IV版 建议阅读时间 7分钟When I was a kid I used to ride my mountain bike everywhere ……

’t have enough money to buy a new bikeB. he didn’t know how to ride a bike C. it can be dangerous... that _____.A. it’s necessary to try some dangerous sportsB. it is never too old to try new thingsC. one ……

国外两兄弟挑战冰川骑行。Can you imagine riding a bike on ice? Two American men made such bikes themselves. Eric.... It was surprising that the heavy tires (轮胎) didn’t break the ice below. It was dangerous, but they enjoyed ……

. China 8. Bike-sharing 9. dangerous 10. next to听力专项训练：I. BBCAC II. BCCB听力原文：I. 1. How often do you go...’t move it.5. You have to be quiet in the library. Don’t talk loudly with your friends when you ……

in car lanes, which can be very dangerous.This is why Beijing will build over 3,200km of new bike lanes... these days.These orange bikes are from a company called Mobike. You can order a bike through its app ……

transportation method soon fell behind the accelerating economy and the humble bike’s popularity began to fade..., to workplaces or to do sightseeing. Public bike rental services have also been launched in multiple cities ……