试题

试题 试卷

logo

题型:阅读选择 题类:常考题 难易度:普通

       Water can be a liquid, a solid or a gas. When it is a solid, it can be as hard as stone. When it is a liquid, it can run through your fingers. When it is a gas, you may not see or feel it.
       Water can change from a solid to a liquid or to a gas easily. This is why we always have fresh water. Now let us find out how it does. The heat of the sun turns liquid water into gas from the oceans, seas, rivers and lakes. The heat also turns liquid water into gas from the ground, the plants and the animals. Water in the gas rises and turns into clouds in the air.
When the clouds come near a mountain, they rise high. As the clouds rise, they get cooler. The higher they rise, the cooler they become. Then more and more water gas turn into water drops. In this way, the drops of water in the clouds get bigger and bigger. Then they fall to the earth as rain.
根据短文内容,选择正确答案

(1)、What is the solid of water?

A、Rain B、Gas C、Stone D、Ice
(2)、When the water is a _____, we may not see or feel it.

A、liquid B、soild C、gas D、snow
(3)、The water in the oceans turns into clouds because _____

A、the wind B、the heat of the sun C、the mountain D、the earth
(4)、According to the passage, it rains most over the_____    

A、seas B、oceans C、mountains D、farms
(5)、The higher you go up the mountain, _____you will feel.

A、the cooler B、the hotter C、the heavier D、the bigger
举一反三
阅读理解

①Millions of people around the world cook their food on fire every day.People must spend lots of money on cooking fuel.However,there is a much easier and cheaper way to cook using energy from the sun.

②Solar cookers have been used for centuries.A Swiss scientist made the first solar cooker in 1777.Today,people are using solar cookers in many countries around the world.People use them to cook food and to heat drinking water.

③There are three kinds of solar cookers.The first is a box cooker.It is designed with a special wall that collects sunshine into the box.A box cooker is good for slow cooking of a lot of food.

④The second kind of solar cooker is a panel cooker.It has several flat walls that collect the sunshine onto the food.People can build panel cookers quickly.They do not cost much.In Kenya,for example,panel cookers cost just two dollars.

⑤The third kind of solar cooker is a parabolic(抛物线的) cooker.It has rounded walls that collect sunlight into the bottom of the cooker.Food is cooked quickly in parabolic cookers.However,these cookers are hard to make.They must be moved again and again to follow the sun.Parabolic cookers can also cause burns and eye injuries if they are not used correctly.

⑥You can make solar cookers from boxes or heavy paper.They will not catch fire.Paper burns at 232℃.A solar cooker never gets hotter than that.Solar cookers cook food at low temperatures over long time.This allows people to cook food and do other things at the same time.

返回首页

试题篮