题型：阅读选择 题类：常考题 难易度：普通
新目标(Go for it)版初中英语九年级综合检测卷（Units 11~14）
What is the sky? How high is it? What color is it? What birds can live above it? These questions are difficult to answer, aren't they? In fact, the sky has no color. Then why does the sky look blue?
We know that there is air around the world. When planes fly, they need air to lift their wings. Planes can't fly very high. That is because the air gets thinner when they go higher. The same will happen to us if we go high enough. If we go up about 1,200 kilometers from the earth, we'll find no air there. Some birds can fly into the sky as high as a plane, but they cannot fly or live without air.
Looking up above us, you will see the blue sky with white clouds. It is usually light blue. The color would be bluer when you see on the top of a high mountain. And you will see fewer clouds in the sky between you and the sun. Sometimes the sky doesn't look blue. When the sun rises and falls, you will see red, orange and other colors in the sky, such are the most beautiful moments of the day.
Who can see the colors of the sky high above the earth? The astronauts! They can see those beautiful colors of the sky from the outer space. However, before flying into the outer space, they sit in a spaceship high above the earth and there is no air at all. The sky would be that dark and its color would be black.
Now you may understand that we see colors because the air scatters (使散射) the sunlight. Light travels through the air. Without air there would be no colors.
Every country has its own way of cooking.
Most people in the United States like fast food, but if you think that {#blank#}1{#/blank#}, you are wrong. It's true that most Americans eat fast food for their breakfast and lunch, but {#blank#}2{#/blank#}. Parents see the importance of teaching their children how to cook, and most Americans say that home-cooked meals are the best.
{#blank#}3{#/blank#}. For example, baking（烘焙) is the most popular way of cooking in America. Most American families have ovens and {#blank#}4{#/blank#}. In planning a big meal, they try to cook meat, a few vegetables, some bread and often some sweet food.
{#blank#}5{#/blank#}. There are many kinds of foods in different colors, so the meal is healthy and looks beautiful, too.
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A. American cooks pay attention to(注意) the balance(平衡)of food B. American people don't like cooking C. they also think cooking is interesting D. they are good at cooking very much E. Americans have their own way of cooking F. They also like to make the meal look beautiful |
Until the beginning of July, there has been no rain in northern Italy for over 100 days. Add to that the high temperatures, and the locals get very dry conditions. This is the most serious dry spell（干旱期）for that area in the past 70 years. Because of this situation, the country's longest river, the Po, is drying up!
This is bad news for several different reasons. The fresh water of the Po provides drinking water for northern Italy. Besides, farmers in this area need the water of the Po to keep their crops growing. What's more, the flowing river water is used to create about half of the hydroelectric power（水力发电）for Italy. Its drying up means that more natural gas（天然气） will be used, which is bad for the environment.
There have been some interesting discoveries from this lack of rain, however. Between Florence and Milan, a long ship sunk （沉没）in 1943 appeared because of the low water levels of the river. Now many tourists and locals come to see this ship. A German tank has also appeared out of water near Mantua. At other places along the river, people can even walk on the sandy river bed. Although this may be interesting, people in Italy and around the world are hoping for the return of rain to refill the Po!
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The longest river in Italy is drying up! |
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The {#blank#}1{#/blank#} |
·Rain hasn't {#blank#}2{#/blank#} in northern Italy for a long time. ·The temperatures are higher than usual. |
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Bad influences |
·People have less drinking water from the Po. ·A lack of rain makes it {#blank#}3{#/blank#}for crops to grow. ·People will {#blank#}4{#/blank#}more natural gas, which is bad for the environment. |
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Interesting discoveries |
·A long ship sunk in 1943 and a tank from {#blank#}5{#/blank#} appeared. · People are even able to walk on the sandy river bed. |
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