阅读理解。

　　In the near future some parts of the world may soon have a new kind of television. It is called high definition television or H-D-T-V. The main difference between H-D-T-V and normal television is the picture. It is more clear and detailed (明细). This is because H-D-T-V has many more points and lines that make a television image (图像). Every colour television picture contains thousands of red, green and blue points, They all come together as an image in the eye of the person

watching. The points are organized in lines that go across the television screen. There are more than 500 lines in a normal television. H-D-T-V has two times as many. To get this clear picture, you must have a big screen. Experts say people using a small screen will see little difference.

　　H-D-T-V also has clear sound. It is like the sound on a compact disc player (激光电唱机), or CD. All these improvements make H-D-T-V very costly. One kind in Japan now sells for more than 20 000 dollars. In the future, the cost is expected to be about 2 000 dollars. A major problem with H-D-T-V is its broadcast signal. The signal is bigger than for normal, because it carries more electronic in formation.

(1) The main difference between an H-D-T-V and a normal television is ________.

[　　]

A．that the picture of normal TV is normal

B．that H-D-T-V is new and good

C．that H-D-T-V is so new that not all parts of the world have got it at present

D．that the picture of an H-D-T-V is more clear and detailed

(2) A colour TV image is ________.

[　　]

A．made up of thousands of red, green and blue points

B．formed by the above-mentioned red, green and blue points which are organized in lines that go across the TV screen

C．a black-and-white picture

D．both A and B

(3) An H-D-T-V has ________ lines.

[　　]

(4) If you want to get a clear and detailed picture from an H-D-T-V, you ________.

[　　]

A．must have the bigger signal for H-D-T-V

B．have to get a big screen

C．should have a compact disc player

D．both A and B

(5) According to the passage, which of the following is right?

[　　]

A．The H-D-T-V sets are not popular now because they are too expensive for most people.

B．The signal for an H-D-T-V is not bigger than that for the normal TV.

C．In the future an H-D-T-V will cost 10 times as much as it costs now.

D．In the future an H-D-T-V will be cheaper only because 2 000 dollars will be just equal to 20 000 dollars.

阅读理解。

　　In the near future some parts of the world may soon have a new kind of television. It is called high definition television or H-D-T-V. The main difference between H-D-T-V and normal television is the picture. It is more clear and detailed (明细). This is because H-D-T-V has many more points and lines that make a television image (图像). Every colour television picture contains thousands of red, green and blue points, They all come together as an image in the eye of the person

watching. The points are organized in lines that go across the television screen. There are more than 500 lines in a normal television. H-D-T-V has two times as many. To get this clear picture, you must have a big screen. Experts say people using a small screen will see little difference.

　　H-D-T-V also has clear sound. It is like the sound on a compact disc player (激光电唱机), or CD. All these improvements make H-D-T-V very costly. One kind in Japan now sells for more than 20 000 dollars. In the future, the cost is expected to be about 2 000 dollars. A major problem with H-D-T-V is its broadcast signal. The signal is bigger than for normal, because it carries more electronic in formation.

1．The main difference between an H-D-T-V and a normal television is ________.

[　　]

A．that the picture of normal TV is normal

B．that H-D-T-V is new and good

C．that H-D-T-V is so new that not all parts of the world have got it at present

D．that the picture of an H-D-T-V is more clear and detailed

2．A colour TV image is ________.

[　　]

A．made up of thousands of red, green and blue points

B．formed by the above-mentioned red, green and blue points which are organized in lines that go across the TV screen

C．a black-and-white picture

D．both A and B

3．An H-D-T-V has ________ lines.

[　　]

4．If you want to get a clear and detailed picture from an H-D-T-V, you ________.

[　　]

A．must have the bigger signal for H-D-T-V

B．have to get a big screen

C．should have a compact disc player

D．both A and B

5．According to the passage, which of the following is right?

[　　]

A．The H-D-T-V sets are not popular now because they are too expensive for most people.

B．The signal for an H-D-T-V is not bigger than that for the normal TV.

C．In the future an H-D-T-V will cost 10 times as much as it costs now.

D．In the future an H-D-T-V will be cheaper only because 2 000 dollars will be just equal to 20 000 dollars.

We've used the wind as an energy source for a long time. The Babylonians and Chinese were using wind power to pump water for irrigating crops 4,000 years ago, and sailing boats were around long before that. Wind power was used in the Middle Ages, in Europe, to grind(磨碎) corn, which is where the term "windmill" comes from.

We can use the energy in the wind by building a tall tower, with a large propellor on the top. The wind blows the propellor round, which turns a generator to produce electricity. We tend to build many of these towers together, to make a "wind farm" and produce more electricity. The more towers, the more wind, and the larger the propellors, the more electricity we can make. It's only worth building wind farms in places that have strong, steady winds, although boats and caravans（大篷车）increasingly have small wind generators to help keep their batteries charged.

The best places for wind farms are in coastal areas, at the tops of rounded hills, open plains and gaps in mountains—places where the wind is strong and reliable. Some are offshore. To be worthwhile, you need an average wind speed of around 25 km/h. Most wind farms in the UK are in Cornwall or Wales. Isolated places such as farms may have their own wind generators. In California, several “wind farms” supply electricity to homes around Los Angeles.

The propellors are large, to obtain energy from the largest possible volume of air. The blades can be angled to cope with varying wind speeds. Some designs use vertical turbines(垂直涡轮机), which don't need to be turned to face the wind. The towers are tall, to get the propellors as high as possible, up to where the wind is stronger. This means that the land beneath can still be used for farming. 

 

1. The first paragraph aims to introduce to us _______.

A. the function of wind power             B. the source of wind power

C. the nations using wind power               D. the history of using wind power

2.How does a wind power work?

A. The generator turns the propellor blades and produce electricity.

B. The tall tower helps turn the energy in the air into electricity.

C. Warm air rises and makes the propellor move round.

D. The propellor blown round by wind turns the generator to produce electricity.

3. The best places for building the wind farm are places where _______.

A. boats and caravans can often be seen       B. isolated farms don’t have enough electricity

C. there are less human activities            D. the wind is strong and reliable

4. We can infer from the passage that _______.

A. wind farms will not take up too much farming land

B. wind farms need no fuel because wind is free

C. the blades can be angled to turn to face the wind wherever it comes from

D. the higher and larger the towers are, the stronger the wind is

5. What can be a suitable title for the passage?

  A. Where to build a wind farm.            B. ABC of the using of wind energy.

  C. How to make best use of wind.          D. Wind energy is the best energy.

 

Learning Chinese has been like climbing a steep(陡峭的)mountain.

My mother was born in Tokyo,while my father moved from Shanghai to Hong Kong when he was seven years old. At home we speak English. I know some basic Chinese customs :to use chosticks gracefully (得体地)and what to say on Spring Festival to get a red envelope. But I never truly learned to speak Chinese.

Why should I need to learn the language ,anyway? I live in America where everyone speaks English.

I realized I was wrong in ninth grade when I arrived at Philips Academy,a famous boarding school in Massachusetts.The school encourages a global outlook(视野). There I decided to welcome the opportunity to learn Chinese. I met other American-born Chinese and together we spoke Ching-lish outside of the classroom.

I searched for ways to access Chinese culture through dramas such as Meteor Garden (《流星花园》)and music by singers such as S.H.E,Wilbur Pan and Jasmine Leung（梁静茹）. Listening to Chinese music is where I found my favorite singer in the whole world:Jay Chou. Even if I cannot understand what he is crooning（哼唱）, I do feel more Chinese whenever I listen to his music.

Last summer I spent five weeks in China,four of which were taking a language course at a Beijing high school. I was proud when I could understand the dialogue in Intitial D（《头文字D》） and when I could easily translate Fairy Tale sung by Kong Leung（光良）.

Learning Chinese has been a rocky trek（艰苦跋涉）, and I know it will continue to be that way before I arrive at a relative plateau（高地） of fluency（流利）.I hope that one day I will be able to work and maybe even live in China as a true Chinese.

1、The author wrote the text mainly to___.

A.share her experience of learning Chinese

B.tell us why she is interested in learning Chinese

C.show off(炫耀) the progress she made in learning Chinese

D.give advice on how to learn Chinese

2、The author's attitude to learning Chinese changed because___.

A.she found Chinese was interesting to learn

B.she wanted to take a course to pass easily

C.she realized she should have an open mind to the outside world

D.she made friends with some American___born Chinese at the school she studied

3、The author tried all of the following to learn Chinese EXCEPT___.

A.listening to Chinese music

B.practicing speaking Chinese with her parents

C.enjoying Chinese dramas

D.taking a Chinese course in China

4、We can learn from the text that___.

A.S.H.E.is the author's favorite singer

B.dialogues in Meteor Garden are easy to guess

C.the author enjoys learning Chinese though it is difficult

D.the author can speak fluent Chinese now

 

I needed to buy a digital camera, one that was simply good at taking good snaps (快照), maybe occasionally for magazines. Being the cautious type, I fancied a reliable brand. So I went on the net, spent 15 minutes reading product reviews on good websites, wrote down the names of three top recommendations and headed for my nearest big friendly camera store. There in the cupboard was one of the cameras on my list. And it was on special offer. Oh joy. I pointed at it and asked an assistant, “Can I have one of those?”? He looked perturbed (不安). “Do you want to try it first?” he said. It didn’t quite sound like a question. “Do I need to?” I replied ,“There is nothing wrong with it？” This made him look a bit insulted and I started to feel bad. “No, no. But you should try it,” he said encouragingly. “Compare it with the others. ”

       I looked across at the others: shelves of similar cameras placed along the wall, offering a wide range of slightly different prices and discounts, with each company selling a range of models based around the same basic box. With so many models to choose from, it seemed that I would have to spend hours weighing X against Y, always trying to take Z and possibly H into account at the same time. But when I had finished, I would still have only the same two certainties that I had entered the store with: first, soon after I carried my new camera out of the shop, it would be worth half what I paid for it; and second, my wonderful camera would very quickly be replaced by a new model.

       But something in the human soul whispers that you can beat these traps by making the right choice, the clever choice, the wise choice. In the end, I agreed to try the model I had chosen. The assistant seemed a sincere man. So I let him take out of my chosen camera from cupboard, show how it took excellent pictures of my fellow shoppers… and when he started to introduce the special features, I interrupted to ask whether I needed to buy a carry-case and a memory card as well.

      Why do we think that new options still offer us anything new? Perhaps it is because they offer an opportunity to avoid facing the fact that our real choices in this culture are far more limited than we would like to imagine.

1.The shop assistant insisted that the writer should________.

A. try the camera to see if there was anything wrong with it.

B. compare the camera he had chosen with the others.

C. get more information about different companies.

D. trust him and stop asking questions.

2.What does the writer mean by “it would be worth half what I paid for it ”(paragraph 2)

A. He should get a 50% discount.

B. The price of the camera was unreasonably high.

C. The quality of the camera was not good.

D. The camera would soon fall in value.

3. The writer decided to try the model he had chosen because he________.

A. knew very little about it.

B. didn’t trust the shop assistant

C. wanted to make sure the one he chose would be the best.

D. had a special interest in taking pictures of his fellow shoppers.

4.It can be inferred from the passage that in the writer’s opinion__________.

A. people waste too much money on cameras

B. cameras have become an important part of our daily life

C. we don’t actually need so many choices when buying a product

D. famous companies care more about profit than quality