Question

【題目】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 cannot 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, and then the cool air over the water moves in and takes the air near a lake or an ocean, you feel the cool air when it moves around you. 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 breaks, and rain falls into the cracks(裂縫). 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 have known a lot of things on the earth, but there is still a long way to go about the study of our world.

Judge the following sentence true (A) or false (B) according to what you read. (判斷正A誤B)

【1】Scientists can answer all our 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 breaks when rain falls.

【5】Scientists are not sure about some questions because there are still many new things for them to

know.

Answer 1

【答案】

【1】B

【2】A

【3】B

【4】B

【5】A

【解析】

試題分析：這篇文章講述了科學(xué)家能夠回答一些問題，但并不能回答所有問題。我們知道為什么夏天的海邊和湖邊會感覺涼快，知道海里的鹽來自哪里，但是科學(xué)家們也不確定海里的鹽會怎么樣。還有很多的問題等著我們?nèi)ソ鉀Q。

【1】B推理判斷題。根據(jù)文章內(nèi)容Of course, scientists cannot answer all of our questions.當(dāng)然，科學(xué)家不可能回答所有的問題，故此題錯誤。

【2】A推理判斷題。根據(jù)文章第一段得知，我們知道為什么夏天的海邊和湖邊會感覺涼快，故此題正確。

【3】B推理判斷題。根據(jù)文章內(nèi)容scientists will say that the salt comes from rocks.科學(xué)家們會說鹽來自巖石，故此題錯誤。

【4】B推理判斷題。根據(jù)文章內(nèi)容When a rock gets very hot or very cool, it breaks,當(dāng)巖石變得很冷或很熱時，它就破了，故此題錯誤。

【5】A推理判斷題。根據(jù)文章內(nèi)容there is still a long way to go about the study of our world.要去了解我們的世界還有很長一段路要走，所以這道題是正確的。