Without the atmosphere there would be no weather, no wind, rain, snow, or clouds. Air is all around us; we live at the bottom of a great ocean of air. It is invisible, but we can feel it when it moves. There are miles of air above us, pressing down with great weight on the earth and everything on it. Because air presses down on us from all directions at the same time, and because we are able to bear (忍受) this weight, we do not seem to feel it. But scientists have proved that air has this weight, and that anything that has weight creates(產(chǎn)生) a force called pressure. As changes in air pressure take place, they, make air move.

Air is a gas that expands(膨脹) when heated, gets lighter, and moves upward. When air is cooled, it gets heavier, sinks close to the earth's surface, and flows like water in a great river. As warn air rises, cold air rushes in to take its place. 'Thus winds originate (起源). The winds that blow high above us are caused by the warmer air running away from colder air. The wind we feel near the earth's surface is the heavy colder air trying hard to catch the warmer air. Changes in temperature cause the air to move. And of course there are many changes, so air movements are taking place practically all the time.

The first paragraph mainly tells us the causes of

A．why we don't feel air　　　　　　　B．why atmosphere is important to us

C．why there is air surrounding us　　D．why there is air pressure

Air moves under such conditions that

A．there is air pressure              B．the air is heavy

C．a(chǎn)ir pressure doesn't remain the same all the time  D．a(chǎn)ir comes up and down

Which of the following pictures best tells the movements of warm air and cold air?

According to the passage, in same areas if farmers who grow grapes (葡萄) light fires in the early morning, that is because the farmers want to________________．

A．drive away warm air  B．prevent cold air from coming to harm their plants

C．cause more windD．stop warm air running away

【小題1】A

【小題2】C

【小題3】B

【小題4】B


解析:

【小題1】

【小題2】

【小題3】

【小題4】

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In one way of thinking, failure is a part of life. In another way, failure may be a way towards success. The “spider story’’ often told, Robert Bruce, leader of the Scots in the 13 th century, was hiding in a cave from the English. He watched a spider spinning a web. The spider tried to reach across a rough place in the rock. He tried six times without success. On the seventh time he made it and went to spin his web. Bruce is said to have taken heart and to have gone on to defeat the English. Edison, the inventor of the light bulb, made hundreds of models that failed before he found the right way to make one. Abraham Lincoln, the famous American president, lost elections more times than he won them! He never gave up in the face of failure but kept trying and was eventually elected to Congress and then the presidency.

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【寫作內(nèi)容】

1、概括短文的內(nèi)容要點(diǎn)，該部分字?jǐn)?shù)大約30詞左右；

2、以“Is Failure a Bad Thing”為題寫一篇文章，包含以下內(nèi)容要點(diǎn)，該部分的字?jǐn)?shù)大約120詞左右。

⑴失敗是生活中的常事

⑵人們對失敗所持的不同態(tài)度

⑶你對失敗的認(rèn)識

【寫作要求】

1、可以使用實(shí)例或其他論述方法支持你的觀點(diǎn)，也可以參照閱讀材料的內(nèi)容，但不要抄襲閱讀材料中的句子

2、作文中不能出現(xiàn)真實(shí)姓名和學(xué)校名稱。

                                                                       

                                                                      

                                                                      

                                                                      

                                                                       

                                                                  

 

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