differences there are between Western and Chinese websitesDay 4Spinning backward (P6)Choose ……

. They made a living by growing trees.Day 4Spinning backward (P6)Choose the answer:1. What condition did ……

to be spinning counterclockwise when viewed from above the North Pole (北极).Everybody knows that Earth spins from west to east. That is to say, it appears to be spinning counterclockwise when viewed from ……

to be spinning counterclockwise (逆时针) when viewed from above the North Pole (北极). But what if Earth started spinning the other way? Scientists from Germany have made a computer simulation (模拟) in which ……

to be spinning counterclockwise (逆时针) when viewed from above the North Pole (北极). But what if Earth started spinning the other way? Scientists from Germany have made a computer simulation (模拟) in which ……

Hummingbirds (蜂鸟) are the only birds in the world that can fly backward. ……

your brain that you are spinning.However, when you stop spinning, the fluid still keeps moving for a while. The brain thinks that you are still spinning.That’s because there is a kind of fluid ……

that you are spinning.However, when you stop spinning, the fluid still keeps moving for a while. The brain thinks that you are still spinning.That’s because there is a kind of fluid (液体) in your ……

walking backward (向后地) can be better for you?Walking is an easy way to stay fit. But do you know walking backward (向后地) can be better for you?For forward walking, you use your ankles (脚踝 ……

west to east. That is to say, it appears to be spinning counterclockwise (逆时针) when viewed from above the North Pole (北极).But what if Earth started spinning the other way?Scientists from Germany have ……

to walk 10 meters forward. The second group walked 10 meters backward. The third group stood in one... found that the backward-walking group got two more answers correct on average than the other two groups ……

a few steps backward (向后的) could be good for you, too. Walking is one of the simplest ways to stay healthy, but taking a few steps backward (向后的) could be good for you, too. The practice isn ……

foot backward (向后地). Whoa!Red pandas are like acrobats (杂技演员) in trees. They can climb down trees... turning your foot backward (向后地). Whoa!观看配套视频   ……

会旋转的房子LUKE Everingham, a 47-year-old Australian, wants his house to always face the sun. So he and his wife built a spinning (旋转的) house. All the rooms connect (连接) to a center core that rotates (旋转 ……

in a chair? You look up and watch the sky keep spinning. You’ve stopped moving, but the dizzy (晕眩的) feeling...) that send signals (信号) to your brain. They tell your brain that you are spinning. However, when you ……