Here are the things we can see at school. Write down their names according to the pictures. ……

做梦为什么很重要？做梦为什么很重要？A new study says dreaming is good for our sight (视力). During sleep, we can’t see anything. But in our dreams, we can “see”. So, the part of our brain that helps us see stays “fit ……

Here are pictures of things we can see in our city. But the pictures are not complete (完整的). Read their descriptions and try to guess what they are. ……

, the moon also reflects (反射) light from the sun. It is brighter than the daytime sky. So, we can see it. In fact, we can see the moon during the day for about 25 days a month.This is the same as how we see ……

(活跃的). So, we can see better.Blinking doesn’t just wet our eyes. Every time we blink, we cannot see... active (活跃的). So, we can see better. ……

has seven colors. They are red, orange, yellow, green, indigo (青色), blue and violet (紫色). We can’t see a rainbow often. If you see one, you are lucky. ……

that?Bobby: We can see the moon, but we can’t see America.JOKEPIER ……

gets hotter and grows bigger. After it cools, we can see the dip (凹陷).When a chicken lays an egg...)”. When we boil the egg, the air cell gets hotter and grows bigger. After it cools, we can see the dip ……

无比强悍的水熊虫。IN the picture we can see the toughest animals on Earth – waterbears. They have eight legs and measure just 1mm in length. They can stand high temperature. They can survive extreme pressure ……

), it is hard to see the moon. But at night, when the sky is dark, the moon still reflects light from the sun and we can see it. ……

. That is why we can't see them. Most birds have a good sense of hearing, which they use to listen...Do birds have ears?鸟儿有耳朵吗？Q: Do birds have ears?A: Yes, all birds have ears. They can hear as well ……

戴上眼罩体验盲人生活。WE may take it for granted (认为……理所当然) that we can see, but many people aren’t so lucky. The students from Shenzhen Shiyan Public School, Guangdong recently experienced (体验) what it is like ……

雪的秘密1.Snow falls when the temperature (温度) in the air is at or below (低于) _____ C.A. 0 B. –10C. 10 2.We can’t see snow in _____.A. CanadaB. The USC. Singapore (新加坡)3.Snowflakes (雪花) can come ……

. At least we can see what is going on in these places through a website. Log on to http://www.earthcam..., right?But the fact is that we can’t just get on a plane and go anywhere we want. We’ve all got ……

. At least we can see what is going on in these places through a website. Log on to http://www.earthcam..., right?But the fact is that we can't just get on a plane and go anywhere we want. We've all got ……