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 is (5) ________ into the other side of the fuel cell. ·The gas meets the protons，and then water and heat are(6) ________ |
| Reasons for slow (7) ________of hydrogen fuel cell cars |
·There are many technical problems (8) ________ ·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. |
根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
1Home can be a great place for children to study. It’s important to provide a workspace of their own where they can read books or just write a letter to their friends.
● Location （位置）
2Kitchen and dining room are not so well suite for regular study. since books and pens get in the way of the day-to-day uses of those areas. Set up a place where a child can settle in and leave papers and pens at band without having to clear everything away each night. For a child that likes being alone, set aside a corner of his bedroom, but keep it separate from things like games, music and other hobbies not related to studying.
● Keeping Things in Order
Parents should encourage their child to spread out, but to leave it neat and orderly when he isn’t using his workspace. Ownership is very important for self-respect
3The workplace should be personal, but not another part of the playroom.
●4 Encourage the whole family to help build a supportive environment that children need for success in school. Give them a good example of how to deal with problems, how to manage time and get things done in the right way. 5Study will be more enjoyable and effective when supported by the whole family
| A．Attitude Is Everything. |
| B．Bring Organization into Your Home. |
| C．Here are several ways to choose a location. |
| D．Building a Good Home Learning Environment. |
E. Hold a can-do attitude and your child will follow your example.
F. Setting up a space in a common area of your home can be a good idea for children.
G. A child who learns to organize his spare will carry organization into every corner of his life.
短文改错 (共10小题;每小题1分,满分10分)
英语课上，老师要求同桌同学相互修改作文。假设以下短文为你同桌所写，请你对其进行修改。文中共有10处错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏词符号（/\），并在此符号下面写出该加的词。
删除：把多余的词用斜线（\）划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意：1．每处错误及其修改均仅限一词；
2．只允许修改10处，多者（从第11处起）不计分。
Last Sunday I saw a worst storm in years. It came sudden and went on for over three hours. After lunch, I went into my room to have a rest. The air was hotter, and all is quiet. Then a strong wind started to blow into my room. Pieces of paper on my desk flew high into the air and some flew out the open window. As I ran out to catch them, big drop of rain began to fall. When I came back into house, it was raining harder and harder. I tried very hard to close the window. Then I heard a loudly crashing(碰撞的)sound from the back of the house. When I ran out of my room to find out what had happened: a big tree had fallen down and broke the top of the backroom.
阅读下面短文，根据所读内容在文后第53至第57小题的空格里填上适当的单词或短语，并将答案转写到答题卡上。
注意：每空不超过3个单词。
Thanksgiving Day
Many people believe Thanksgiving is a Western holiday, but in fact, it is only an American holiday held every fourth Thursday of November although Canada holds their own unique Thanksgiving on the second Monday of October.
The pattern of the Thanksgiving celebration has never changed through the years. The big family dinner is planned months ahead. Some of the family will have to travel by air and others will make long motor trips with the children. Sons and daughters away at college use their four-day holiday to go home, and employees take extra days from their work so as to be able to make the trip for the annual reunion. The Thanks-giving dinner menu today is somewhat the same as it was on Thanksgiving Day in 1863. On the dinner table, people will find apples, oranges, chestnuts and grapes. There will be pudding (布丁), mince（肉末）pie, other varieties of food and squash（鲜果汁）. The rest and most attractive among them are roast turkey and pumpkin pie. They have been the most traditional and favorite food on Thanksgiving Day throughout the years.
In true Thanksgiving spirit the family circle is often enlarged to include friends known to be alone, foreign visitors, or servicemen away from home. Orphans, the aged and the homeless also have the traditional turkey dinner, provided either by some charitable (慈善的) individual or a church group.
Thanksgiving Day
| The dates |
In the USA |
Every fourth Thursday of November |
| 53. ________ |
Every second Monday of October |
|
54. _______ |
The big family dinner |
Planned months ahead |
| All family members |
Expected to get home for 55. ________ |
|
| The dinner menu |
Roast turkey and pumpkin pie, apples, oranges, chestnuts, grapes, other varieties of food and etc |
|
| The Enlarged spirit |
People invited to Thanksgiving Dinner |
Friends known to be alone, 56. ________, or servicemen away from home |
| People provided with 57. ________ |
Orphans, the aged and the homeless |
根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
We are all called upon to make a speech at some point in life, but most of us don’t do a very good job. 71.
So, you have to give a speech ─ and you are terrified. You get nervous, you forget what you want to say, you stumble (结结巴巴) over words, you talk too long, and you bore your audience. Later you think, “Thank Goodness, it’s over. I’m just not good at public speaking. I hope I never have to do that again.”
Cheer up! 72. Here are some simple steps to take the pain out of speech making. Ask yourself the purpose of your speech. What is the occasion? Why are you speaking? Then, gather as many facts as you can on your subject. Spend plenty of your time doing your research. Then spend plenty of your time organizing your material so that your speech is clear and easy to follow. Use as many example as possible, and use pictures, charts, and graphs if they help you make your points more clearly. 73. Don’t talk over their heads, and don't talk down to them. Treat your audience with respect. They will appreciate your thoughtfulness.
Just remember: Be prepared. Know your subject, your audience, and the occasion. Be brief, 74. And be yourself. Let your personality come through so that you make person-to-person contact with your audience.
If you follow these simple steps, you will see that you don’t have to be afraid of public speaking. In fact, you may find the experience so enjoyable that you volunteer to make more speeches! You’re not convinced yet? 75.
| A．It doesn’t have to be that bad. |
| B．Take several deep breaths before your speech. |
| C．This article gives some advice on how to give a good speech. |
| D．Say what you have to say and then stop. |
E．Don’t say what you aren’t familiar with.
F．Never forget your audience.
G．Give it a try and see what happens.
Section A (10 points)
Directions: Read the following passage. Complete the diagram by using the information from the passage. WRITE NO MORE THAN 3 WORDS for each answer.
Many students eat their breakfasts on the way to school or in the dinning-room. But some of them don’t really know how to eat well when eating out.
Here is some important advice. The first is to eat less fast food. The most obvious harm of eating too much fast food is weight gaining because of too much fat. Young people and adults are at risk of diseases related to weight.
Too much fast food can drag your body down. French fries, for example, were recently found to contain much more acryl amide(丙烯酰胺) than other food. This may cause cancer. Actually, deep fried food all contains acryl amide. So don’t eat it too often.
Soda is another thing you should watch out for. Cokes and other sodas contain a lot of sugar and can slow down a person’s calcium absorption, so it’s best to drink as little soda as possible.
Food in the dinning-room may not be as tasty as fast food, but it’s actually easier to make healthy choices. Human bodies need variety. You can have a meal that balances lean proteins, vitamins and complex carbohydrates(碳水化合物). In other words, a meal with fish or meat, vegetables and some bread or rice will provide you with most nutrients that the body needs.
Some snacks, on the other hand, will help keep you going until your next big meal. It is natural for teenagers, especially boys, to feel hungry during school time. Don’t forget to take some foods, like whole-grain biscuits or low-fat milk in your school bag.
Title: 71__________
| Advice |
Food |
72.__________ |
73.__________ |
Kind |
Eat less fast food |
French fries and other 74__________ |
75.__________ |
Cause weight gaining |
Unhealthy food |
| Acryl amide |
76.__________ |
|||
| 77._________ |
Sodas |
Lots of sugar |
Slow down 78__________ |
Unhealthy food |
| Eat in dinning-room |
Fish or meat, vegetables and some bread or rice |
Lean proteins, vitamins and complex carbohydrates |
Provide most nutrients that the body needs |
79._______ |
| 80. __________ |
Whole-grain biscuits or low-fat milk |
Not mentioned |
Keep you going until next big meal |
Healthy food |