Before a new type of airplane goes into service, every part of it is tested again and again. But there are two tests that are more important than all the others.
The first is called the " tank(贮水池) test". A modem airplane must fly very high in the sky. Air must be pumped into the plane so that the passengers can breathe. The metal structure (结构)of the plane has to be very strong for this reason. When the plane is filled with air, the air presses against the skin of the plane inside. The pressure (压力) on a small window is like a huge foot that is trying to get out. If a small part of the plane were to fail, the plane would explode (爆炸)in the sky. To test the structure of the plane, the plane is lowered into a huge tank or container of water. Then it is filled with air. The pressure inside the plane is greater than it ever will be when it is high up in the air. Finally, there is an explosion. This does not cause so much damage inside the water tank as it would anywhere else. Engineers can discover which part of the plane has broken. Then that part is made stronger.
The most dangerous test happens when the new plane is going through test flights in the air. The pilot must find out exactly what happens when the engines (发动机) are all shut off at once. The plane begins to fall like a stone. It is the pilot’s job to find out how he can get control of the plane again. These two tests are examples of how planes are made safe before they ever carry passengers.
1.By doing the "tank test", the engineers can find out _______.
|
A．the amount of air in the plane |
B．the strength of the plane structure |
|
C．the pressure inside and outside the plane |
D．the power of the airplane engines |
2.What will happen to the plane under the "tank test"?
|
A．It will be broken. |
B．It will be made stronger. |
|
C．It will be filled with water. |
D．It will be tested by pilots, |
3.According to the text, why are test flights most dangerous?
|
A．The plane may explode in the air. |
B．The pilot may lose control of the plane. |
|
C．The engines may be damaged. |
D．Too much air may get into the plane. |
4.What might be the most suitable title for the text?
|
A．Two Important Tests on Airplanes |
B．The Importance of Flying Safely |
|
C．The Danger of Testing Airplanes |
D．How Airplanes Are Made and Tested |
There is one thing that everyone wants more than anything else .Some people try to get it by making money .They think that when they have enough money to buy such things as houses ,arms ,and cars ,they will have the one thing that everyone wants .
Other people believe that if they know enough, they will find this thing .They study all their lives in search of it .Still others think that if they have power, they will find this thing .They keep telling themselves: When I am a boss, I will no longer have to search for this thing.
What is it that everyone wants more than anything else? What is it that all of us keep working and searching for each day? It is happiness.
Happiness is a strange thing .It does not mean the same to all men .What will make one man happy may not make another man happy .Some men say that happiness comes from helping others ,other men say that happiness comes from making life more pleasant for everyone .What do you mean when you say“That makes me happy.”
Read what different people have said about happiness .Perhaps you will learn something that will bring you peace of mind ,comfort ,money or may bring you what you search for happiness.
1.The main idea of this passage is that
|
A．happiness means the same to everyone |
|
B．happiness is the thing that everyone wants to get |
|
C．money makes one happy, so does helping others |
|
D．not all people are searching for happiness |
2.The first sentence in the second paragraph means
|
A．other people think if they know a lot they will be able to get enough money and that will make them happy |
|
B．other people think it true that knowledge will bring them enough money |
|
C．other people hold the opinion that the less they know, the happier they are |
|
D．other people hold the opinion that if they become knowledgeable enough they will feel happy |
3.“What will make one man happy may not make another man happy ”this sentence means
|
A．when one man feels happy, another man will feel sad |
|
B．when one man feels happy, another man will feel happy, too |
|
C．different people hold different opinions about happiness |
|
D．different people have the same opinion about happiness |
4.Which of the following is NOT true according to this passage?
|
A．Anyone who owns lots of money will feel happy |
|
B．Not all the people in the world would help others |
|
C．What makes one happy may make another sad |
|
D．All the people in the world work and search for happiness. |
People do not analyze every problem they meet. Sometimes they try to remember a solution from the last time they had a 21 problem. They often accept the opinion or ideas of other people. Other times they begin to act without 22 ；they try to find a solution by trial and error. 23 .，when all of these methods 24 ，the person with a problem has to start analyzing. There are six 25 in analyzing a problem.
26 the person must recognize that there is a problem. For example, Sam's bicycle is broken, and he cannot ride it to class as he usually does. Sam must see that there is a problem with his bicycle.
Next the person must 27 the problem. Before Sam can repair his bicycle, he must know why it does not work. For example, he must determine the parts that are wrong.
Now the person must look for 28 that will make the problem clearer and lead to possible solutions. For example, suppose Sam 29 that his bike does not work because there is some thing wrong with the brakes(刹车). 30 , he can look in his bicycle repair book and read about brakes, 31 his friends at the bike shop, or look at his brakes carefully.
After studying the problem, the person should have 32 suggestions for a possible solution. Take Sam as an example 33 ，his suggestions might be: tighten or loosen the brakes; buy new brakes and change the old ones.
In the end, one 34 seems to be the solution to the problem. Sometimes the __35__ idea comes quite 36 because the thinker suddenly sees something new or sees something in a 37 way. Sam, for example, suddenly sees there is a piece of chewing gum（口香糖）stuck to a brake. He 38 finds the solution to his problem ：he must___39___the brake.
Finally the solution is tested .Sam finds that his bicycle 40 perfectly. In short he has solved the problem.
|
||||||
|
||||||
|
||||||
|
||||||
|
||||||
|
||||||
|
||||||
|
||||||
|
||||||
|
||||||
|
||||||
|
||||||
|
||||||
|
||||||
|
||||||
|
||||||
|
||||||
|
||||||
|
||||||
|
— How was your recent visit to Qingdao?
—It was great. We visited some friends, and spent the________ days at the seaside.
|
A．few last sunny |
B．last few sunny |
C．last sunny few |
D．few sunny last |
Try____ she might, Sue couldn’t get the door open.
|
A．if |
B．as |
C．sine |
D．when |
从A, B, C, D四个选项中，找出其划线部分与所给单词的划线部分读音相同的选项，并在答题卡上将该项涂黑。
|
1．cushion |
A．bush |
B．status |
C．puzzle |
D．curious |
|
2．blank |
A．assist |
B．decade |
C．patent |
D．wander |
|
3．worthy |
A．health |
B．clothing |
C．birthplace |
D．wealthy |
|
4．spare |
A. fear |
B.earn |
C.pear |
D.beard |
|
5．treasure |
A．possession |
B．television |
C．Asian |
D．precious |
