阅读理解

  When the weather is hot, you go to a lake or an ocean. When you are near a lake or an ocean, you feel cool. Why? The sun makes the earth hot, but it can not make the water hot. Though the air over the earth becomes hot, the air over the water stays cool. The hot air over the earth goes up, then the cool air over the water moves in and takes the place of the hot air. When you are near a lake or an ocean, you feel the cool air when it moves in. You feel the wind and the wind makes you cool.

  Of course, scientists cannot answer all of our questions. If we ask “Why is the ocean full of salt?” scientists will say that the salt comes from rocks. When a rock gets very hot or very cool, it cracks (崩裂) , and rain falls into the cracks. The rain then carries the salt into the earth and the rivers. The rivers carry the salt into the ocean. But then we ask “What happens to the salt in the ocean? The ocean does not get saltier every year. “ scientists are not sure about the answer to the question.

  We know a lot about our world. But there are still many answers that we do not have, and we are curious(好奇的).

阅读短文,判断正(T)误(F)。

1.Scientists can answer all questions.

(  )

2.Now scientists know what makes people feel cool near a lake or an ocean. in summer.

(  )

3.Scientists say that the salt in the ocean comes from rivers and lakes.

(  )

4.A rock cracks when rain falls.

(  )

5.People are always curious because there are many new things for them to know.

(  )

 0  53788  53796  53802  53806  53812  53814  53818  53824  53826  53832  53838  53842  53844  53848  53854  53856  53862  53866  53868  53872  53874  53878  53880  53882  53883  53884  53886  53887  53888  53890  53892  53896  53898  53902  53904  53908  53914  53916  53922  53926  53928  53932  53938  53944  53946  53952  53956  53958  53964  53968  53974  53982  159627 

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网