Centuries ago, man discovered that removing moisture(潮湿)from food helps to store it, and that the easiest way to do this is to expose the food to sun and wind. In this way the North American Indians produce pemmican(dried meat ground into powder and made into cakes), the Scandinavians make stockfish and the Arabs dried dates.
All foods include water—cabbage and other leaf vegetables contains as much as 93% water, potatoes and other root vegetables 80%, lean meat 75% and fish, anything from 80% to 60%, depending on how fatty it is. If this water is removed, the activity of the bacteria(细菌)which cause food to go bad is checked.
Fruit is sun-dried in Asia Minor, Greece, Spain and other Mediterranean countries, and also in California, South Africa and Australia. Various methods are used, but in general, the fruit is spread out on trays in drying yards in the hot sun.
Nowadays most foods are dried mechanically. The method of such dehydration(脱水)is to put food in chambers through which hot air is blown at temperatures of about 110℃ at entry to about 43℃ at exit. This is the usual method for drying such things as vegetables, minced(切碎的)meat, and fish.
Dried foods take up less room and weigh less than the same food packed in cans or frozen, and they do not need to be stored in special conditions. For these reasons they are invaluable to the climbers, explorers and soldiers in battle, who have little storage space. They are also popular with housewives because it takes so little time to cook them. Usually it is just a case of replacing the dried-out moisture with boiling water.According to the text, the open-air method of drying food .
| A．is the one most commonly used today |
| B．was invented by the American Indians |
| C．has been known for hundreds of years |
| D．tends to be unhealthy |
Bacteria which cause food to go bad .
| A．cannot live in sunlight |
| B．are killed by drying |
| C．are in no way dependent on the water contained |
| D．have their activity greatly reduced by drying |
Today vegetables are most commonly dried .
| A．on hot and sunny days | B．in hot-air chambers |
| C．in the sun and wind | D．using the open tray method |
Housewives like dried foods because they .
| A．are quick to prepare |
| B．taste better than fresh foods |
| C．can be packed in a case |
| D．look fresh when cooked |
Satellites are an important part of our ordinary lives．For example, the information for weather forecasts is sent by satellite．Some satellites have cameras which take photographs of the Earth to show how clouds are moving．Satellites are also used to connect our international phone calls．
Computer connections of the World Wide Web and Internet also
use satellites. Many of our TV programs come to US through satellites．Airplane pilots also sometimes use a satellite to help them find their exact location．
We use satellites to send television pictures from one part of the world to another．They are usually 35，880 kilometers above the equator．Sometimes we can see a satellite in the sky and it seems to stay in the same place．This is because it is moving around the world at 11，000 kilometers an hour—exactly the same speed that the earth rotates．A satellite must orbit the Earth with its antennae(天线)facing the earth．Sometimes, it moves away from its orbit，So there are little rockets on it which are used to put the satellite back in the right position．This usually happens about every five or six days．
Space is not empty! Every week, more and more satellites are sent into space to orbit the Earth．A satellite usually works for about 10-12 years．Satellites which are broken are sometimes repaired by astronauts or sometimes brought back to Earth to be repaired．Often，very old or broken satellites are left in space to orbit the Earth for a very long time．This is very serious because some satellites use nuclear power and they can crash into each other．．Which of the following is NOT done by satellites according to the passage?
| A．Sending information for weather forecast． |
| B．Taking photographs of the Earth． |
| C．Sending TV pictures． |
| D．Providing food for airplane pilots． |
．What’s the speed the earth rotates at?
| A．35,880 kilometers per hour． | B．335,880 kilometers per hour． |
| C．11,000 kilometers per hour． | D．110,000 kilometers per hour |
．Why does the satellite move around the world at the same speed as the Earth rotates?
| A．In order to take photographs． |
| B．In order to stay in a certain position in the orbit． |
| C．In order to move away from its orbit． |
| D．In order to send television pictures． |
．What does the underlined word “This” in the 3rd paragraph refer to?
| A．A satellite． |
| B．A little rocket． |
| C．A satellite seems to stay in the same place in the sky． |
| D．The satellite puts the rockets in the right position． |
．Which is true of satellites?
| A．A satellite usually works for about 10-12 years． |
| B．Every time a satellite gets broken，it is brought back to the Earth to be repaired． |
| C．A broken satellite is never left in space． |
| D．They often crash into each other． |
As late as 1800, women’s only place was in the home. The idea of woman in the business world was unthinkable. Men were certain that no woman could do a good job outside her home. This was such a widely accepted idea that when the well-known Bronte sisters began writing books in 1864, they had to sign their books with men’s names instead.
Teaching was the first profession open to women soon after 1800. But even that was not an easy profession for women to enter because most schools and colleges were open only to men. Oberlin College in Ohio was the first college in America to accept women.
Hospital nursing became respectable work for women only after Nightingale became famous. Seeing that she was not only a nurse but also a rich and well-educated woman, people began to believe it was possible for women to nurse the sick and still be “ladies”. Miss Nightingale opened England’s first training school for nurse in 1860.
The invention of the typewriter in 1867 helped to bring women out of the home and into the business world. By 1900, thousands of women were working at real jobs in schools, hospitals and offices in both England and America. Some women even managed to become doctors or lawyers. The idea that women could work in the business world had been accepted. Why couldn’t women become teachers easily? Because___________
| A．the first profession open to them was writing. |
| B． most schools and colleges were open only to men. |
| C． they wanted to be nurses instead. |
| D． they had to work in the business world. |
. The article is mainly about __________.
| A． women are in the business world |
| B． the famous Bronte sisters |
| C． schools and colleges in America |
| D． rights for American women |
. Which fact does the article lead you to believe?
| A．The Bronte sisters thought that they were men. |
| B． England’s first training school for nurses was in Ohio. |
| C． There are more men than women in professional jobs. |
D． Women find it neces sary to work harder than before. |
I first visited hutong as part of a tourist group several years ago. We rode on a trishaw（脚踏三轮车） with a guide explaining the history, architecture and lifestyle of the local inhabitants.
Having visited the "must-sees" of Beijing, like the Forbidden City, the Temple of Heaven, the Drum Tower and
the Summer Palace, going into the hutong home of some famous ancient families gave the “Beijing experience” a human element.
My curiosity has sharpened over the years from reading about them at every opportunity. During the preparation for the Olympics I was eager to learn that some siheyuan courtyards in hutong were turned into accommodations（食宿） for visitors. I wished to stay in one someday.
Preparing for a recent trip to the capital, I eagerly sought one out. On my limited teacher’s salary, I settled on an affordable option, though I looked longingly at the more upscale courtyard accommodations.
As usual, I ended up having something closer to a true experience. A real family still lives in the courtyard, which is closer to the original. The rooms all opened into the central courtyard. Flowers were blooming, beans and peas were climbing up the bamboo fence, and the cat was napping in the sun. Every day after exploring the city, I'd hurry back to the hutong, take a quick shower and join the cat – snoozing（小睡） in a bamboo-made chair with a book ready nearby.
As the other guests came back we’d greet one another. There was a mother and young daughter from France, a guy from Canada, a mother and teenage daughter from the Netherlands, a teacher from England and several guests from various parts of China.
Coming and going through the narrow alleys（小巷） of the hutong, the residents would smile and give cheery “ni hao” （hello）. Laughing children were playing under the watchful eyes of the neighbors. I felt right at home in this friendly neighborhood. The main idea of the passage is about ______________.
| A．hutong days realize my desires to live local life |
| B．Trishaw is the only way to visit the hutong |
| C．living in the hutong with other visitors |
| D．exploring the deeper of Beijing |
. When did the author have th
e idea to visit Beijing hutong?
| A．As early as he was a little child |
| B．when he was reading the text books at school |
| C．during the preparation for the Olympics |
| D．the author doesn’t mention it specifically |
The underlined word “upscale” in the fourth paragraph means _________.
| A．inexpensive | B．high-class | C．appropriate | D．secondary |
What is the impression of the author about the people in hutong?
| A．They came from all over the world. |
| B．They all wanted to enjoy the old life of Beijing. |
| C．They are living together in harmony. |
| D．They are living in a heavenly peace life. |
What makes a person a scientist? Does he have ways or tools of learning that are different from those of others? The answer is “no”. It isn’t the tools a scientist uses but how he uses these tools which make him a scientist. You will probably agree that knowing how to use a power is important to a carpenter. You will probably agree, too, that knowing how to investigation, how to discover information, is important to everyone. The scientist, however, goes one step further; he must be sure that he has a reasonable answer to his questions and that his answer he gets to many questions is into a large set of ideas about how the world works.
The scientist’s knowledge must be exact. There’s no room for half right or right just half the time. He must be as nearly right as the conditions permit. What works under one set of conditions at one tim
e must work under the same conditions at other times. If the conditions are different, any changes the scientist observes in a demonstration(实证) must be explained by the changes in the conditions. This is one reason why investigations are important in science. Albert Einstein, who developed the Theory of Relativity, arrived at the theory through mathematics. The accuracy(正确性) of his mathematics was later tested through investigation. Einstein’s
ideas were proved to be correct. A scientist uses
many to
ols for measurements. Then the measurements are used to make mathematical calculations(计算) that may test his investigations What makes a scientist according to the passage?
| A．The tools he uses. | B．His ways of learning |
| C．The way he uses his tools | D．The various tools he uses |
“…knowing how to investigation, how to discover information, is important to everyone.”
The writer says this to show ___________.
| A．the importance of information |
| B．the difference between scientists and ordinary people. |
| C．the importance of thinking |
| D．the difference between carpenters and ordinary people |
A sound scientific theory should be one that _________.
| A．works under one set of conditions at one time and also works under the same conditions at other times |
| B．doesn’t allow any change even under different conditions |
| C．Can be used many times under different conditions |
| D．Can be used for many purposes |
What is the main idea of the passage?
| A．Scientists are different from ordinary people. |
| B．The Theory of Relativity. |
| C．Exactness is the core (核心) of science. |
| D．Exactness and way of using tools are the keys to making of a scientist. |
Short and shy,Ben Saunders was the last kid in his class picked for any sports team.
“Football,tennis,cricket—anything with a round ball,I was useless,”he says now with a laugh.But back then he was the object of jokes in school gym classes in England’s rural Devonshire.
It was a mountain bike he received for his 15th birthday that changed him.At first the teen went biking alone in a nearby forest.Then he began to cycle along with a runner friend.Gradually,
Saunders set his mind on building up his body,increasing his speed,strength and endurance.At age 18,he ran his first marathon.
The following year,he met John Ridgway,who became famous in the 1960s for rowing an open boat across the Atlantic Ocean.Saunders was hired as an instructor at Ridgway’s School of Adventure in Scotland,where he learned about the older man’s cold-water exploits.Intrigued,
Saunders read all he could about Arctic explorers and North Pole expeditions,then decided that this would be his future.
Journeys to the Pole aren’t the usual holidays for British country boys,and many people dismissed his dream as fantasy.“John Ridgway was one of the few who didn’t say,’You are completely crazy,’” Saunders says.
In 2001,after becoming a skilled skier,Saunders started his first long-distance 
expedition toward the North Pole.He suffered frostbite,had a close encounter with a polar bear and pushed his body to the limit.
Saunders has since become the youngest person to ski alone to the North Pole,and he’s skied more of the Arctic by himself than any other Briton. His old playmates would not believe the transformation.
This October, Saunders, 27,heads south to explore from the coast of Antarctica to the South Pole and back ,an 1800 mile journey that has never been completed on skis..
The turning point in Saunders’ life came when__________.
| A．he started to play ball games | B．he got a mounta in bike at age 15 |
| C．he ran his first marathon at age 18 | D．he started to receive Ridgway’s training |
.
. We can learn from the text that Ridgway__________.
A .dismissed Saunders’ dream as fantasy B. built up his body together with Saunders
C hired Saunders for his cold-water experience
D .won his fame for his voyage across the Atlantic.
.What do we know about Saunders?
| A．He once worked at a school in Scotland. |
B．He fol lowed Ridgway to explore the North Pole. |
| C．He was chosen for the school sports team as a kid. |
| D．He was the first Briton to ski alone to the North Pole. |
.
The underlined word “Intrigued” in the third paragraph means__________.
| A．Excited | B．Convinced | C．Delighted | D．Fascinated |
.
.It can be inferred that Saunders’ journey to the North Pole__________.
| A．was accompanied by his old playmates | B．set a record in the North Pole expedition |
| C．was supported by other Arctic explorers | D．made him well-known in the 1960s |