Movies have documented America for more than ...

Movies have documented America for more than one hundred years. Since Thomas Edison introduced the movie camera in 1893, amateur and professional movie-makers have used moving pictures to tell stories and explain the work of business and government. 1. By preserving these movies, we will save a century of history.

Unfortunately, movies are not made to last. 2. Already the losses are high. Only 20% of US feature films from the 1910s to 1920s survive. Of the American features produced before 1950, about half exist. For independently produced works, we have no way of knowing how much has been lost.

For many libraries and museums, the hardest step in preserving movie collections is getting started. The Movie Preservation Guide is designed for these organizations. 3. These institutions have collections of moving pictures but lack information about how to take care of them. The Guide contains basic facts for “beginners”—professionals trained in history but unschooled in this technical area.

The Guide grew from user workshops at Duke University. At the sessions, beginners talked with technical experts about what they needed to know to preserve and make available their movie collections. 4.

Following the advice, the Guide describes methods for handling and storing moving pictures that are practical for research institutions with limited resources. 5. The Guide has been translated into Chinese, Japanese and Korean.

A. “Keep it simple!” was the advice of the discussions.

B. They’ll be damaged within years if not properly stored.

C. These organizations are the first to save American movies.

D. It is organized in chapters and includes case studies and charts.

E. It introduces movie preservation to nonprofit and public institutions.

F. They show how generations of Americans have lived, worked and dreamed.

G. They store the original movies and new ones under cool-and-dry conditions.

高三英语七选五中等难度题查看答案及解析

Warm water freezes more quickly than cold water. Sir Francis Bacon said that almost four hundred years ago. But few people believed him until 1970. In that year a Canadian scientist George Kill proved the English professor was right. Dr Kill filled an open oil pail (桶) with cold water. He filled another with warm water. He put both in the same low temperature. The warm water froze first. The lack of covers on the pails is the secret. Some of the warm water changed into vapor. This meant that less of the warm water was left to be frozen. And so the warm water froze faster than the cold water even though it had a greater temperature drop to make.

1.Hundreds of years ago, Sir Francis Bacon found _______.

A.the temperature of warm water drops faster than that of cold water

B.warm water is heavier than cold water

C.warm water has the same temperature as cold water

D.warm water is not as useful as cold water

2.Leave a pail with warm water and another pail with cold water in the same low temperature, you’ll find that _______.

A.cold water freezes first

B.warm water turns into ice before cold water

C.warm water and cold water freeze at the same time

D.much of cold water is changed into air.

3.Why does warm water freeze first in the same freezing weather? _______

A.Because some of the warm water turns to vapor, the amount becomes less than that of cold water.

B.Because warm water is lighter than cold water.

C.Because the temperature of warm water is lower than that of cold water.

D.Because cold water freezes with more difficulty than warm water.

高三英语阅读理解中等难度题查看答案及解析

—I’m sorry, but we have no more than one copy of 1942 for rent now.

—That’s OK. I’ll take _____.

A. it   B. one   C. that   D. either

高三英语单项填空中等难度题查看答案及解析

More than a hundred adults and kids gather for the Star Party on a cold evening, chattering excitedly as they stand in the dark on a Virginia hillside. The odd thing is, no one has turned on a flashlight, and no streetlights or house lights wink(闪烁) on around them.

These people have traveled to the countryside more than an hour from Washington, D. C., to get away from the glow of city lights.  That's because they are attending a star party. Star parties are gatherings where professional and amateur astronomers set up their telescopes and invite people to come learn about the night sky. Getting away from light pollution, or artificial skylight from buildings for example,  helps stargazers (看星星的人) see objects in the sky much better.

At this star party, Sean O'Brien of the National Air and Space Museum’s Einstein Planetarium starts off by asking the crowd to simply look up and take in all they can see. He points out plenty of things that can be seen without special equipment. Stars, satellites, and even the Andromeda galaxy(仙女座) can be found if you know where to look.

After that, several dozen astronomers offer close-up views. Each has focused their telescope on a different part of the sky. As kids take a look, the owner gives a mini-lesson.

O’Brien says you can have your own star party at home and learn a lot just by paying attention to what's happening up above. "Watch the sky as the seasons pass, and you will see that it changes," he says. "Or start with the moon. Notice when and where you are seeing it—maybe even in the early morning while you wait for the school bus. "

1.What was it special about the Star Party ?

2.According to the passage, who were involved in the activity ?

a. some invited guests

b. some government officials

c. some experts in astronomy

d. those who were interested in astronomy

e. students who were major in agriculture

3.From the passage, we can infer that if you want to see the objects in the sky            .

4.Which of the following can be best describe what O'Brien says about discovering the stars'?

高三英语阅读理解困难题查看答案及解析

It’s said that this old building has __________ for more than five hundred years.

A. existed          B. been built       C. come into being      D. Appeared

高三英语单项填空中等难度题查看答案及解析

—Which of the two movies do you like?

—　　　　 . I don’t have a taste for their style and prefer more exciting ones.

A. Both　　　　 B. Neither

C. Either　　　　 D. None

高三英语单项填空中等难度题查看答案及解析

For over one hundred and fifty years, Americans of all social classes have worn blue jeans.1. Whether they are worn for work or for fashion today.Strauss' invention continues to be popular not only among Americans but also among people around the world.

Levi Strauss was born in Germany in 1829.2. He grew up in Kentucky before moving to New York in 1847.Before becoming an American citizen and moving to the West in 1853, Strauss worked in his brother's dry goods business.This gave him a chance to produce his famous invention.After the gold rush of 1949, Strauss decided to move to the West to seek his fortunes.

Strauss did not want to be a person who searched an area for minerals.Instead, he knew he could make a good living by selling supplies to the miners.At first, he planned to sell sewing supplies and cloth.3.When he heard miners complaining that their clothes were easily broken or they usually tore their pockets during mining, he decided to use a special fabric to make pants for the miners.These pants proved so popular that he quickly ran out of materials to make more.

In 1873, Strauss received a letter from a Jewish tailor named Jacob Davis who had invented a process of connecting pockets with copper rivets(铆钉).This made the pants last a long time.Because Davis did not have the money to patent his idea, he offered to share it with Strauss if Strauss would agree to pay for the patent.4..

By the time Strauss died in 1902, he had made a great contribution to American fashion.

5.The business has been growing ever since and Levi Strauss' company is now one of the largest clothing companies in the world.

A.Nobody knew what kind of material was suitable.

B.As a young boy, he moved with his family to the United States.

C.However, he did not get much business for those products.

D.He did and Levi jeans have been made with metal rivets ever since.

E.He also made a great contribution to America's clothing industry.

F.As the business grew, Strauss got much money from it.

G.Since they were invented by Levi Strauss, they have become a symbol of American consumer culture.

高三英语七选五中等难度题查看答案及解析

For over one hundred and fifty years, Americans of all social classes have worn blue jeans. 1.Whether they are worn for work or for fashion today. Strauss' invention continues to be popular not only among Americans but also among people around the world.

Levi Strauss was born in Germany in 1829. 2. He grew up in Kentucky before moving to New York in 1847. Before becoming an American citizen and moving to the West in 1853, Strauss worked in his brother's dry goods business. This gave him a chance to produce his famous invention. After the gold rush of 1849, Strauss decided to move to the West to seek his fortunes.

Strauss did not want to be a person who searched an area for minerals. Instead, he knew he could make a good living by selling supplies to the miners. At first, he planned to sell sewing supplies and cloth. 3. When he heard miners complaining that their clothes were easily broken or they usually tore their pockets during mining, he decided to use a special fabric to make pants for the miners. These pants proved so popular

that he quickly ran out of materials to make more.

In 1873, Strauss received a letter from a Jewish tailor named Jacob Davis who had invented a process of connecting pockets with copper rivets (铆钉). This made the pants last a long time. Because Davis did not have the money to patent his idea, he offered to share it with Strauss if Strauss would agree to pay for the patent.4..

By the time Strauss died in 1902, he had made a great contribution to American fashion. 5.The business has been growing ever since and Levi Strauss' company is now one of the largest clothing companies in the world.

A. As a young boy, he moved with his family to the United States.

B. Nobody knew what kind of material was suitable.

C. He did and Levi jeans have been made with metal rivets ever since.

D. However, he did not get much business for those products.

E. He also made a great contribution to America's clothing industry.

F. Since they were invented by Levi Strauss, they have become a symbol of American consumer culture.

G. As the business grew, Strauss got much money from it.

高三英语阅读理解中等难度题查看答案及解析

---- One more question, Sir?

----Wait a minute. I ____ your questions for more than 30 minutes without a break.

Where is my cup?

高三英语单项填空简单题查看答案及解析

You might be surprised to know that bicycles have existed for about two hundred years, but no one is sure who first made this popular two-wheeled machine.

1.The front wheel was much bigger than the back one, and also there weren't any pedals (踏板), Riders had to move themselves forward by pushing their feet against the ground.

2. In 1879 an Englishman had the idea of connecting them to the back wheel with a chain. Gears(齿轮), which made things much easier for those cycling uphill, first appeared in the 1890s.

There are now about one billion bicycles in the world.3.They have to compete with cars on the streets of all the world' s cities, and the two forms of transport don' t always mix well. In London in 2005, for example, over 300 cyclists were either killed or seriously hurt in accidents.

Because bicycles are much more environmentally friendly than cars, now many governments encourage people to ride rather than drive.4.The number of yearly journeys made by bicycle in London has increased 50% over the last five years.

However, although one in three British people owns a bicycle, they still don't use them nearly as much as they could 5..

It is hoped that more people will rely on bicycles to move around. The reasons are obvious--cycling helps to protect the environment, keep us fit, and it is often not only cheaper but also quicker than travelling by car in many cases.

A.Pedals finally arrived in the 1840s.

B.Cycling is on the rise in the United Kingdom.

C.Bicycles are used for only 2 % of journeys in the UK.

D.The first person who made a bicycle was an Englishman.

E.The number of bicycles is twice more than that of cars.

F.The early models didn't look much like the bicycles of today.

G.Cycling helps improve people's health.

高三英语七选五中等难度题查看答案及解析