《2018高中英语 5 牵手课堂练习课件 外研版必修1 （陕西专版）》由会员分享，可在线阅读，更多相关《2018高中英语 5 牵手课堂练习课件 外研版必修1 （陕西专版）（9页珍藏版）》请在金锄头文库上搜索。
1、Module 5 A Lesson in a Lab 一堂实验课,The science of astronomy for kids 浩瀚的宇宙无边无际、无始无终，这给无数人带来了无尽的遐想。它的神奇和神秘不仅开启了古今中外科学家的探索之路，而且强烈地吸引着孩子们！,The science of astronomy (天文学) is interesting.There are a lot of kids who are interested in the planets，the solar system，the universe and everything else thats part o
2、f this exciting science.For children，many parts of it are magical and they are drawn towards the moon，the stars and far distant galaxies (星系),The moon is Earths only satellite.It takes about 27 days to travel around the Earth.Gravity (地心引力) between the moon and Earth causes the tides.Its brightness
3、in the night sky attracts many children to learn more about it.,Then theres our sun.Earth is quite far from the sun.The distance is between about 91 million miles and about 94 million miles.Thats because Earths orbit (轨道) around the sun isnt a circle；its an ellipse (椭圆)If there were no sun，we wouldn
4、t be alive.Our light and heat comes from the sun.Over 98% of the total stuff in our solar system is in the sun.Think about how small a person is compared to that.,We live in the Milky Way galaxy.Its full of space stuff.Even with all this stuff to fill it，its mostly empty.At over 100,000 light years
5、wide and 3,000 light years high，that means the galaxy holds a whole lot of nothing.The center of our galaxy is about 30,000 light years from Earth.Even with all that space there are about 100 billion stars in the Milky Way.In fact the galaxy was named after the thick group of stars in the main part
6、of it.People thought it looked like a stream of milk，so they called it the Milky Way.,There is a lot of information about astronomy for kids on the Internet.Kids can easily learn more about the universe around us. True (T) or False (F) 1The moon is one of the earths two satellites.( ),2Most children like the moons brightness very much.( ) 3We depend on the sun to live.( ) 4There is nothing at all in the Milky Way galaxy.( ) 答案： 1.F 2.T 3.T 4.F,
