Unit 6 第四课时 Theme Reading 校本作业（学生版）（pdf版）

第4课时 Theme Reading I.翻译下列短语。 1.与…相似 2.靠近 3.拾头看 4.在…的距离 5.至于 6.充满着… 7既不…也不… 8.寻找 9组成；化妆；编造 10.直径为… Ⅱ。从方框中选择适当的词并用其正确形式填空。 gas to live distance survive 1.The small plant the cold winter and grew new leaves()in spring. 2.Some animals can travel very long to look for food. 3.This cup is similar that one,but in fact,they are made from different materials. 4.She was so nervous before the exam that she felt like she had butterflies and in her stomach. 5.All the living things need air and water.Without them,nothing can stay Ⅲ.阅读理解。题材：土星的光环.难度：★★★…建议用时：6.mins Which planet is the most beautiful in our solar system Many people may answer "Saturn".Saturn has beautiful rings.Of all the planets in the solar system,Saturn's rings are the biggest and brightest. According to scientists,however,these rings will one day disappear. How did Saturn get its rings in the first place Science has no sure answer.But there is a popular theory:Some small planets ran into each other with Saturn's moons.Earth has only one moon.But Saturn has at least 60 moons.And this left behind a large number of ice and rock pieces.These pieces are different in size.Some are as small as a grain of sand.Others are as large as a house. These small pieces began to travel around Saturn.Saturn's gravity()pulled them to it.At the same time,the speed of their orbit()tried to throw them into space.Over time,these pieces of ice and rock formed rings around Saturn. A new study,however,suggests that Saturn's gravity is winning.About 10,000kg of ring matter"is falling into Saturn every second.If this continues,the planet's ring system will no longer exist (存在)in100 million to300 million years'time. According to scientists,Saturn's rings are between 10 million and 100 million years old."We're lucky to see Saturn's huge ring system,"one of the scientists said."Some of the planets in our solar system only have very thin rings today.Maybe we just missed seeing their huge ring systems!" 根据材料内容选择最佳答案。 ()1.Why is Saturn the most beautiful A.Because it has huge bright rings.B.Because it is shining most strongly. C.Because it exists for many years.D.Because it has the biggest size in the solar system. ()2.What are the rings of Saturn made up of(组成)？ A.Sand and rock pieces. B.Small moons. 91