题目列表(包括答案和解析)
请认真阅读下列短文,并根据所读内容在文章后表格中的空格里填入最恰当的单词。
注意:每空格1个单词。
For years, the automobile industry has been testing vehicles that use hydrogen as fuel. Now, people across the United States have had a chance to see and even drive cars that get power from hydrogen fuel cells (燃料电池).
But the hydrogen fuel cell is not a new idea. The fuel cell was first invented by Sir William Grove of Britain in 1839. Since then, many different designs, have been invented. There is one place where fuel cells are a proven technology: in space. The American space agency used fuel cells in its Apollo spaceships in the twentieth century.
The most useful fuel cell for transportation purposes is the Polymer Electrolyte Membrane, or P.E.M. fuel cell. It is simple and can operate at temperatures of sixty to eighty degrees Celsius. That is much lower than other fuel cell designs. A P.E.M. fuel cell has two sides divided by a thin membrane (膜). Hydrogen gas is forced through one side where it comes in contact with a reactive material containing the metal platinum(铂). The membrane separates the electrons(电子) from the protons(质子) in the hydrogen atoms. The protons pass through it to the other side of the fuel cell. But the electrons are captured to do work; like powering a motor. Oxygen from the air is forced into the other side of the fuel cell. There, the gas meets the protons that have passed through the membrane. They combine to form water and heat. A single fuel cell does not produce a lot of electricity. But when many fuel cells are combined, they can produce enough electricity to power a vehicle. The product of the chemical reaction that powers fuel cells is water. This makes fuel cells a very clean technology.
Hydrogen fuel cell cars have been slow to develop because of many technical problems that have to be solved. For example, it is unclear how long the membranes in P.E.M. fuel cells will last. Also, fuel cells need water for their chemical reactions. They must be designed to start easily at low temperatures and in dry climates. And smaller, less costly fuel cells must be designed before they can truly take the place of gasoline engines. Now more models of fuel cell vehicles are being tested than ever before. The threat of climate change and the high cost of oil have increased interest in these vehicles that do not cause pollution.
|
Title |
More Models of Hydrogen Cars Being Tested |
|
The progress of hydrogen fuel cell |
·1.________ by Sir William Grove in 1839. ·Designed 2.________ ever since. ·Used in Apollo spaceships in the twentieth century. |
|
Operating principle of P.E.M. |
·It has two sides divided by a thin membrane. ·Hydrogen gas from one side 3.________ the active metal platinum. ·The electrons are 4.________ from the protons in the hydrogen atoms. ·The protons pass through the fuel cell to the other side. ·Oxygen from the air is5.________ into the other side of the fuel cell. ·The gas meets the protons,and then water and heat are6. ________ |
|
Reasons for slow 7.___________ of hydrogen fuel cell cars |
·There are many technical problems8. ________ ·The durability of the membranes in P.E.M. fuel cells is not clear. ·They have to start easily at 9.________ temperatures and in dry climates. ·They must be smaller and less costly before 10.________ gasoline engines. |
CPR is cardiopulmonary resuscitation (心肺复苏). It forces air into the lungs and pumps(用泵抽) blood and oxygen to the brain in order to increase the chances that a person whose heart stops will survive. It increases the chances that he or she will suffer little or no brain damage.
The American Heart Association suggests two ways to perform CPR. One combines the use of hands to pump the victim’s chest with rescue breathing. The other method is called “Hands-Only CPR”, which is for people who are unwilling or unable to perform rescue breathing. Some people fear infection(感染). Others say they are afraid of making the patient worse.
But the American Heart Association strongly asks people in contact with a victim(受害者) to take action and tells how to take it. It says you can recognize a person needing CPR. He or she is unconscious(无意识) -- unable to communicate or react to surroundings or speech. His or her skin has lost color. The person is not breathing. If such conditions describe the situation, chances are the heart has stopped beating.
You should act by calling for help, or sending someone else. Even if you cannot do mouth-to-mouth rescue breathing, you can perform Hands-Only CPR. You can do chest compressions(压迫) that help to keep blood flowing to the brain and the heart. To perform the compressions, place one hand over the other and press firmly on the center of the victim’s chest. Push down about five centimeters. Aim for one hundred compressions each minute.
Doctor Sayre suggests that medical workers do both the breathing method and chest compressions as usual. He says some victims, including babies, need the mouth-to-mouth breathing with the compressions. Still, the doctor says it is better to do just chest compressions than to do nothing.
请认真阅读下列短文,并根据所读内容在文章后表格中的空格里填入最恰当的单词。
注意:每空格1个单词。
For years, the automobile industry has been testing vehicles that use hydrogen as fuel. Now, people across the United States have had a chance to see and even drive cars that get power from hydrogen fuel cells (燃料电池).
But the hydrogen fuel cell is not a new idea. The fuel cell was first invented by Sir William Grove of Britain in 1839. Since then, many different designs, have been invented. There is one place where fuel cells are a proven technology: in space. The American space agency used fuel cells in its Apollo spaceships in the twentieth century.
The most useful fuel cell for transportation purposes is the Polymer Electrolyte Membrane, or P.E.M. fuel cell. It is simple and can operate at temperatures of sixty to eighty degrees Celsius. That is much lower than other fuel cell designs. A P.E.M. fuel cell has two sides divided by a thin membrane (膜). Hydrogen gas is forced through one side where it comes in contact with a reactive material containing the metal platinum(铂). The membrane separates the electrons(电子) from the protons(质子) in the hydrogen atoms. The protons pass through it to the other side of the fuel cell. But the electrons are captured to do work; like powering a motor. Oxygen from the air is forced into the other side of the fuel cell. There, the gas meets the protons that have passed through the membrane. They combine to form water and heat. A single fuel cell does not produce a lot of electricity. But when many fuel cells are combined, they can produce enough electricity to power a vehicle. The product of the chemical reaction that powers fuel cells is water. This makes fuel cells a very clean technology.
Hydrogen fuel cell cars have been slow to develop because of many technical problems that have to be solved. For example, it is unclear how long the membranes in P.E.M. fuel cells will last. Also, fuel cells need water for their chemical reactions. They must be designed to start easily at low temperatures and in dry climates. And smaller, less costly fuel cells must be designed before they can truly take the place of gasoline engines. Now more models of fuel cell vehicles are being tested than ever before. The threat of climate change and the high cost of oil have increased interest in these vehicles that do not cause pollution.
| Title | More Models of Hydrogen Cars Being Tested |
| The progress of hydrogen fuel cell | ·【小题1】________ by Sir William Grove in 1839. ·Designed 【小题2】________ ever since. ·Used in Apollo spaceships in the twentieth century. |
| Operating principle of P.E.M. | ·It has two sides divided by a thin membrane. ·Hydrogen gas from one side 【小题3】________ the active metal platinum. ·The electrons are 【小题4】________ from the protons in the hydrogen atoms. ·The protons pass through the fuel cell to the other side. ·Oxygen from the air is【小题5】________ into the other side of the fuel cell. ·The gas meets the protons,and then water and heat are【小题6】 ________ |
| Reasons for slow 【小题7】___________ of hydrogen fuel cell cars | ·There are many technical problems【小题8】 ________ ·The durability of the membranes in P.E.M. fuel cells is not clear. ·They have to start easily at 【小题9】________ temperatures and in dry climates. ·They must be smaller and less costly before 【小题10】________ gasoline engines. |
第三部分:阅读理解:(共20小题,每小题2分,满分34分)
Vocabulary learning is a continuing process. It continues all your life. When you are young, you learn something day in and day out. You should keep squeezing every moment of the day into a new and different learning situation. You continually ask questions and drive yourself to learn more. The more you learn, the more vocabulary you will know. No matter what your age is, you must continue to learn. Words are “Symbols” for ideas. These ideas make knowledge and knowledge is gained largely through words. The following are some suggestions which may help you increase your vocabulary.
•Read books from fields other than your major.
•Read books which interest you and concentrate while you read.
•The more you read, the more words you will come in contact with.
•Use new vocabulary in your everyday communication (writing, speaking).
•Become familiar with the vocabulary in your text books.
•Become familiar with the dictionary. Understand the pronunciation rules as well as the multiple(众多的)meanings of words.
•Try to learn 5 words a day. If you know these words, use them in your communications. Without using these new words, it is a waste of your time.
56、The main idea of the passage is .
A、how to remember vocabulary B、how to learn vocabulary
C、how to use vocabulary D、how to teach vocabulary
57、The underlined word “squeezing” probably means “ ”.
A、压出 B、付出 C、浪费 D、挤出
58、Which of the following statement is NOT suggested in the passage as a way of vocabulary learning?
A、Use the new words you have learned when you write and speak.
B、Use your dictionary and be familiar with it.
C、Concentrate only on the books on your major.
D、The more you read, the more words you will get.
59、From the passage we know .
A、most of your knowledge is gained through words.
B、dictionary is the most important way of vocabulary learning.
C、if you learn a new word, just keep it in your mind.
D、you should spend most of your spare time on vocabulary learning.
My son was badly hurt in a fire.After he__36__from a series of treatments,the doctors told him they would not do any operation for six months__37__it took long for the skin to stop shrinking (收缩). So, he had to return to college with a visible 10inch__38__on his face.
I said to my son, “Keaston,__39__will pay any more attention to your scar__40__you do. If it does not bother you, it will not bother__41__.” He took my advice to heart and returned to school with his head__42__high—glad he was alive.
__43__, everyone has scars and shortcomings.Some of you may spend much time thinking that people would like you better, __44__you looked different, or dressed differently, or could have a different and newer__45__.
But you see, like Keaston’s scar,people will only judge you by your looks,or your__46__, or your car, if you are judging yourself by these same false__47__.
One of my friends in college was very__48__. At first, when people met him, they noticed his__49__for about 10 seconds. This man felt__50__about himself and spent most of his time__51__about other people’s comfort and welfare.__52__, people ignored his looks. What people__53__was his kindness and his concern for them. He didn’t act in an ugly way so people didn’t treat him as an ugly man.
Therefore, concentrate on what you value__54__yourself, because if you can see that beautiful person, everyone you are in contact with will see the same__55__.
|
1. |
|
|
2. |
|
|
3. |
|
|
4. |
|
|
5. |
|
|
6. |
|
|
7. |
|
|
8. |
|
|
9. |
|
|
10. |
|
|
11. |
|
|
12. |
|
|
13. |
|
|
14. |
|
|
15. |
|
|
16. |
|
|
17. |
|
|
18. |
|
|
19. |
|
|
20. |
|
湖北省互联网违法和不良信息举报平台 | 网上有害信息举报专区 | 电信诈骗举报专区 | 涉历史虚无主义有害信息举报专区 | 涉企侵权举报专区
违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com