There are two methods by which hydrogen(氢)can...

There are two methods by which hydrogen(氢)can be used to power cars.The first way is to use hydrogen to drive the engine，in much the same manner as many cars use gas.The second method is to use the reaction of hydrogen with oxygen in a battery(电池).

The dream of producing hydrogen for the car from water while driving is a long way off，so we are still at the period of batteries and filling the tank with hydrogen gas.This is the most difficult thing for car users and producers.There are only sixteen hydrogen filling stations in Los Angeles and none in 99% of other cities worldwide.

Indeed，some of the big name automobile producers have pulled out of the race to put the first practical hydrogen car on the streets.Ford and GM have announced that they are pulling out in America and so has Renault in France.

However，the Japanese companies are going on with it.In fact，Honda introduced its first hydrogen fuel car in 1999.They are now working on the second­generation hydrogen cars known as the FCX Clarity.Guess where you can buy these cars？There is only one city in the world.Yes，Los Angeles，because of its filling stations.

Honda thinks that they could go into full­scale production of the FCX Clarity by 2020，if the world is prepared for them by then.Hyundai has on­going plans to make hydrogen fuel cars and says that they will be produced in 2012.Daimler also says that they would be producing 100,000 hydrogen fuel cars in 2012－2013.

Then there are hydrogen powered buses in several European cities including Amsterdam，Barcelona，Hamburg，London，Luxembourg and Madrid.Lotus，the maker of London taxis，has announced that they want to produce some hydrogen powered taxis in time for the London Olympics.

So the hydrogen vehicles(交通工具)are out there and the numbers will be growing fairly soon.However，getting fuel is not the only difficulty for the average motorist.

1.Which of the following things may take the longest to come true?

A. Using the reaction of hydrogen with oxygen in batteries to power cars.

B. Using water to produce hydrogen for cars while driving.

C. Hyundai's developing hydrogen fuel cars.

D. Developing hydrogen powered taxis.

2.Which of the following statements about hydrogen powered vehicles is TRUE?

A. Hydrogen powered cars were not introduced to the public until the 21st century.

B. Hydrogen powered buses can only be seen in America right now.

C. Hydrogen powered taxis produced by Lotus will be used in America soon.

D. Hydrogen powered vehicles are likely to increase in the number soon.

3.The writer wrote this passage mainly to________.

A. tell us the history of hydrogen powered vehicles

B. tell us the present­day situation of hydrogen powered vehicles

C. introduce some Japanese car producers to us

D. introduce several European cities that are using hydrogen powered vehicles

高一英语阅读理解中等难度题查看答案及解析

There is a common belief among them _______ rubbish can and should be put into good use.

高一英语单项填空简单题查看答案及解析

Natural resources are things 1. exist in nature and can be used by people. Some natural resources are renewable, like trees. When one tree is cut down, we can plant a new tree to replace it. Others, 2., are not renewable, like the coal dug out of the ground. Once it is used, it is 3.. (go)

Although we all know that our natural resources are limited, we often waste them in our daily life. Paper, bottles and cans 4. (throw) away carelessly; food is wasted just because of  its  poor  taste; clothes  are  rejected 5. (simple) due  to  their  old fashion. These valuable natural resources will run out before long 6. better use is made of them.

Actually, everyone can make contributions (贡献) to 7. (protect) our natural resources. For example, 8.riding a bicycle or walking instead of driving, we can save lots of petrol. Water is a very important natural resource because we all need 9. to stay alive. We can make wise10. (choose) to save water, like reusing the water that has been used to wash vegetables to water flowers.

高一英语语法填空困难题查看答案及解析

There are two caps on the table, _____ belongs to Tom.

A．the smaller of which                     B．the small of that

C．the smaller of them                      D．the small one

高一英语单项填空中等难度题查看答案及解析

About aspirin (阿司匹林):

Aspirin is a commonly used drug which can be taken to relieve discomfort caused by numerous medical problems including headaches, toothache, inflammation(发炎) and infections. It is also suitable to treat colds and flu-like symptoms(症状), and to reduce a high temperature.

Who can take aspirin?Adults and children over 16 years of age.

Who should not take aspirin?Women who are pregnant, or plan to become pregnant. Aspirin may harm your unborn baby.

Women who are breast-feeding. Aspirin can pass into your breast milk and may harm your baby.People who have any problems with the way the liver works or with the way the kidneys work.

How to take aspirin:Take aspirin after meals, with a full glass of water or milk.

The recommended dose (剂量) ranges from two to three tablets at a time. Never take more than 4g 12 tablets) in any 24 -hour period.You must not take these tablets with any other medicine which contains any aspirin or painkiller.

How to store aspirin:Keep all medicines out of the reach and sight of children.

Store aspirin in a cool, dry place, away from direct heat and light.

Do not put aspirin in the bathroom because the dampness there can cause it to lose its effectiveness.Throw away aspirin that smells strongly of vinegar.

Possible side effects:Feeling sick, increased risk of bleeding, stomach pain, indigestion and heartburn are common. If these effects continue, contact your doctor.Ringing in the ears, difficulty breathing, dizziness, and mental confusion are rare. If these occur, stop taking the drug and contact your doctor for further advice.

1.What type of writing is this text?

A. A hospital announcement.　　 B. A medical report.

C. A doctor’s suggestions list.　　 D. Medical instructions.

2.In which case will you take aspirin according to the text?

A. Stomachache.　　 B. Fever.

C. Breathlessness.　　 D. Nosebleed.

3.How many times can you take aspirin at most in a day?

A. 6.　　 B. 5.

C. 4.　　 D. 3.

4.It can be inferred from the passage that.

A. Adults and children over 12 years old can take aspirin.

B. Store aspirin in a warm, wet place.

C. Aspirin doesn’t harm unborn baby.

D. If any possible side effects continue, contact your doctor.

高一英语阅读理解中等难度题查看答案及解析

Traveling by subway can sometimes be quite an adventure, especially during rush hour. There are the times when you have to avoid cups of coffee that could spill (溅) on you. The smells of some passengers’ food are very strong, too. According to the Beijing subway passenger regulations, which went into effect on May 15th, passengers except babies and the sick are no longer allowed to eat or drink on the subway. Violators (违反者) who do not stop after being asked to will be asked to get off. The violation will also be recorded in the violators’ credit record.

Some support the rule. The reason is that the smell of food and drink can annoy other passengers. “The smell of food fills the carriage, causing people discomfort, especially in the hot summer, Besides, eating on the subway produces rubbish. And on subway trains, people often spill their drinks,” said Zheng Yiou, 17, a student from Hefei.

However, others question this rule. “Some citizens live so far from their work places that they have limited time to have breakfast before they go to work. Eating while they travel saves them time and decreases the chance that they will be late for work,” He Songlin, a 17-year-old student from Chengdu said, “And some people, like those with low- blood sugar levels, get sick if they can’t eat when they must.”

Other Chinese cities like Nanjing and Chengdu have similar regulations. Some foreign cities also ban eating and drinking on the subway. For example, eating and drinking have long been banned on the subway in Washington DC. Singapore fines people who eat or drink on the subway up to 500 Singapore dollars, which is RMB 2,417 yuan.

Chen Yanyan, a professor from Beijing University of Technology, believed we should consider the need of some people to eat or drink on the subway. “Commuters (上班族) and travelers are sometimes too busy to eat. Maybe we could learn from Tokyo, where there are many subway stations equipped with services, allowing passengers to eat and drink,” she said.

1.In which city was subway passenger regulations carried out on May 15th?

A.Chengdu. B.Nanjing.

C.Washington DC. D.Beijing.

2.What’s the punishment for the passengers who break the rules in Singapore?

A.Eating on the subway. B.Drinking on the subway.

C.Being fined up to 2417 yuan. D.Being asked to get off the train.

3.What is Chen Yanyan’s attitude to eating or drinking on the subway?

A.Worried. B.Sympathetic.

C.Doubtful. D.Uninterested

4.What would be the best title for the text?

A.Food and Drink Banned on Subway.

B.The Adventure of Subway Traveling

C.Ways to Eat and Drink on Subway.

D.The Services on Subway Stations

高一英语阅读理解中等难度题查看答案及解析

There are two kinds of memory: short-term and long-term. Information in long-term memory can be remembered at a later time when it is needed. The information may be kept for days or weeks. However, information in short-term memory is kept for only a few seconds, usually by repeating the information over and over. The following experiment shows how short-term memory has been studied.

Henning studied how students who are learning English as a second language remember vocabulary. The subjects in his experiment were 75 college students. They represented all levels of ability in English: beginning, intermediate (中等), and native speaking students.

To begin, the subjects listened to a recording of a native speaker reading a paragraph in English. Following the recording, the subjects took a 15-question test to see which words they remembered. Each question had four choices. The subjects had to circle the word they had heard in the recording, some of the questions had four choices that sound alike. For example, weather, whether, wither, and wetter are four words that sound alike. Some of the questions had four choices that have the same meaning. Method, way, manner, and system would be four words with the same meaning. Finally the subjects took a language proficiency test.

Henning found that students with a lower proficiency in English made more of their mistakes on words that sound alike; students with a higher proficiency made more of their mistakes on words that have the same meaning. Henning's results suggest that beginning students hold the sound of words in their short-term memory, and advanced students hold the meaning of words in their short-term memory.

1.Which of the following statements is TRUE according to the passage?

A.Henning gave a separate test on vocabulary to his students.

B.Long-term memory can be achieved only by training.

C.It is easier to test short-term memory than long-term memory.

D.Information in short-term memory is different from that in long-term memory.

2.The word "subject" in the passage means _________.

A.the theme of listening material B.the student experimented on

C.a branch of knowledge studied D.a native speaker

3.From Henning's result we can see that ________.

A.advanced students always remember words by their meaning

B.beginners have difficulty distinguishing the pronunciation of words

C.it is difficult to remember words that sound alike

D.it is difficult to remember words that have the same meaning

4.The passage centers on ________.

A.an experiment on students B.two kinds of memory

C.short-term memory D.memory

高一英语阅读理解中等难度题查看答案及解析

The family sphere(范围) used to be defined by its isolation from the public realm. There was the public male realm（领域）of "rational accomplishment" and cruel competition, and the private female and child-rearing sphere of home, intuition（直觉）and emotion. The private realm was supposed to be isolated from the realities of adult life. For both better and worse, television and other electronic media tend to break down the difference between those two worlds. The membrane around the family sphere is much more permeable(可渗透的). TV takes public events and transforms them into dramas that are played out in the privacy of our living rooms, kitchens and bedrooms.

Parents used to be the channel through which children learned about the outside world. They could decide what to tell their children and when to tell it to them. Since children learn to read in stages, books provide a kind of natural screening process, where adults can decide what to tell and not tell children of different reading abilities. Television destroyed the system that separated adult from child knowledge and separated information into year-by-year slices for children of different ages. Instead, it presents the same information directly to children of all ages, without going through adult filters.

So television presents a real challenge to adults. While a parent can read a newspaper without sharing it with children in the same room, television is accessible to everyone in that space. And unlike books, television doesn't allow us to flip（翻转）through it and see what's coming up. We may think we're giving our children a lesson in science by having them watch the Challenger take off, and then suddenly they learn about death, disaster and adult mistakes.

Books allow adults to discuss privately what to tell or not tell children. This also allows parents to keep adult material secret from children and keep their secret keeping secret. Take that same material and put it on The Today Show and you have 800,000 children hearing the very things the adults are trying to keep from them. "Television takes our kids across the globe before parents give them permission to cross the street."

More importantly, children gradually learn that adults are worried and anxious about being parents. Actually, television has also places families under a lot of stress.

How Television Changes Childhood?

高一英语填空题中等难度题查看答案及解析

In developing countries, energy can be used wastefully by _______ has the money to use it, while poorer and less powerful go without.

A.who B.which

C.whoever D.whomever

高一英语单项填空中等难度题查看答案及解析

—Which of the two pens are you going to buy?

—I’ll buy _____of them, so I can give one to my friend.

A. all           B. neither          C. every one       D. both

高一英语单项填空简单题查看答案及解析