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Question

Long long ago , dinosaurs ruled Earth . We now know a lot about the many different types of dinosaurs because scientists have found many dinosaur bones . However , around 65 million years ago , all the dinosaurs suddenly disappeared . People argue about what really happened to them .
Some scientists believe that dinosaurs died out because there was sudden temperature change on Earth . But what could have caused this huge change ?
Many people believe that Earth might have been hit by a really large rock , or even a very small planet . Scientists have even found a 200-kilometre-wide hole in Mexico . They think it might be the place where a small planet hit Earth . If a small planet hit Earth , it would have caused many problems for the dinosaurs , including storms , fire , acid rain and earthquakes . All of these would have released a lot of dust into the air . The dust would have been so thick that it would have been impossible for the dinosaurs to see the sun . Without sunlight , it would have been too cold and dark for plants to grow . When plants died , The plant-eating dinosaurs would have had nothing to eat and die . The meat-eating dinosaurs would also have become very hungry . They may even have become so hungry that they ate each other . Without enough food for all the dinosaurs , they would have begun to disappear quickly .
But some people do not agree with these explanations of why the dinosaurs died out . Some scientists think that a huge volcano eruption may have killed the dinosaurs , while others believe that the dinosaurs died as Earth slowly got colder and colder . Although they have disappeared dinosaurs continue to fascinate people .

Choose the best answer
1- According to scientists , _________ may be the main reason for the dinosaurs' dying out .( )
A . big fires . B earthquakes acid . C rain . D temperature change
2-The passage mentioned_________ ideas that scientists came up with about the end of the dinosaurs .( )
A. two B.three C.four D.five
3- The underlined expression "volcano eruption " Probably refers to ________ .( )
A. The name of a minor planet B.a kind of dinosaur
C. a kind of disaster D.the name of an earthquake
4- Earth might have become cold because _____________.( )
A . the sun refused to rise B.the dust kept the sunlight away
C.there was too much rain D.there were too many dinosaurs
5- This passage might be found in _________. ( )
A. a scince-fiction book B.a story book C.a dictionary D. a science magazine

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Answer 1

很久以前久，恐龙规定了地球。 因为科学家已经发现许多恐龙骨头 , 所以我们有关许多不同的类型恐龙现在很多。 然而，在六千五百万年以前在附近，所有的恐龙突然消失。 人们有关什么真的发生在他们身上。
一些科学家相信恐龙死出因为有突然的温度在地球方面的变化。 但是什么应该可以引起这个极大的变化 ?
许多人相信地球应该可以被一块非常大的岩石打 , 或更甚至非常小的行星。 科学家已经更甚至发现墨西哥的一个 200 公里- 宽的洞。 他们认为它可能是小的行星碰撞了地球的地方。 如果小的行星碰撞了地球 , 它就会为恐龙 , 包括暴风雨引起许多问题了 , 火 , 酸雨和地震。 这些全部都会释放许多灰尘进空气之内。 灰尘会是如此的厚以致于恐龙太阳会是不可能的。 没有日光，它太寒冷和让植物生长黑暗。 当植物死的时候 , 植物- 吃恐龙会已经没有东西吃而且死。 肉- 吃恐龙会也已经变得非常饥饿。 他们可能更甚至已经变得如此的饥饿以致于他们吃了彼此。 没有充足的食物为所有的恐龙，他们会开始很快地消失。
但是一些人不同意这些解释恐龙为什么死出。 一些科学家认为极大的火山爆发可能已经杀恐龙 , 当其它相信当地球慢慢地很越来越寒冷的时候 , 恐龙死的时候。 虽然他们已经消失恐龙令人入神人。

选择最好答案
1- 依照科学家 ,_________ 可能是主要的理由恐龙的日渐绝迹。()
一。 大的火灾。 B 地震酸。C 下雨。 D 温度变化
2- 科学家有关恐龙的结束提出的通道 mentioned_________ 主意。()
一。 二 B.three C.four D.five
3- 被表达 " 火山爆发 " 下面划线的或许提到到________.()
A. 恐龙的一个较小的行星 B.a 类型的名字
C。 一次地震的一种灾祸 D.the 名字
4- 地球应该可以变得寒冷因为_____________.()
一。太阳拒绝升被把日光留在离开的 B.the 灰尘
C.there 是太多雨 D.there 是太多恐龙
5- 这一个通道可能被发现在_________. ()
一。 一个 scince- 小说书 B.a 故事书 C.a 字典 D。 一本科学杂志

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