lives.
The first computer _1 _ (build) in 1946.It 2 (be) as large as a room and quite difficult and slow 3 ( use). But since the invention of silicon " chip " (硅片) , computers 4 ( become) smaller, easier and faster to operate. Some computers are as small as TV sets. Some can even 5 (make)
smaller than a book. And computers 6 ( get) smaller and smaller all the time. Who knows what the
computers of tomorrow 7 (be) like?
There 8 (be) several reasons why the computer is useful to us. First, a lot of information can be put into computers. Second, the computer _ 9 (work) very quickly thousands of times faster than a
man and it will not be tired. Third, modern computers can be built into other kinds of machines, like radios, cars and planes. So today people can spend less time 10 ( do) more work with a computer.
1.______ 2. _______3. _______4. _______ 5. ______
6. ______7. _______8. _______9. _______10. ______
6. are getting 7. will be/are 8. are 9. works/can work 10. coins
their own lunar calendar( 阴历). Each lunar year is given the name of one of these animals: the rat, the ox,
the tiger, the hare, the dragon, the snake, the horse, the goat, the monkey, the chicken, the dog and the
pig. This list lasts for twelve years and then starts again.
Each Chinese month starts on the day of the new moon. And the full moon comes on the 15th day of
the month. The new year always starts between January 21 and February 20. On the last day of a lunar
year, there is a big family dinner. All members of the family except
married daughters try to be present at this meal-they have to travel many miles to get home of their parens". Everybody is very happy. After the dinner, the children keep awake to welcome
the New Year.
The New Year celebrations last for 15 days, from the new moon to the full moon. On the first day,
children and unmarried people go to visit their elders.
A. It was the year of the goat.
B.It was the year of the hare.
C.It was the year of the rat.
D.It was the year of the ox.
2. Suppose that next Chinese New Year"s Day is on 15th February, when will peoplehave their big family dinner?
A. On February 15.
B. On February 16.
C. On February 14.
D. On February 13.
3. The family usually have their family dinner at the home of______ .
A. the married son"s
B. the married daughter"s
C. the unmarried son"s
D. the parents"
4. People celebrate the New Year______.
A. for 15 days
B. from the new moon to Lhe full moon in the first month of the lunar year
C. from January 21 to February 20
D. both A and B
5. From this passage we know that each Chinese month is measured by_____
A.the sun"s revolution(旋转)
B. the moon"s revolution
C. the earth"s revolution
D. both the earth"s and the moon"s revolution
There are different kinds of trains in the world. Trains can 1 people, animals, and other things.
Some trains are 2 , the others are slow. They can reach most of the cities and towns. Some trains go
3 the hills if they are too high to go over. In big cities, the streets are usually 4 and some cars and
buses often have to wait.
So you can find trains under the 5 and trains on a rail above the streets. People can quickly be
brought in or taken out. Can a train run over 6 ? Yes, it can. There are many bridges over the
rivers. But it is not easy to 7 bridges. Today"s trains have dining-rooms for people. You
may 8 something in them on the way if you are hungry. Trains are 9 to men, women and
children. Many children like to play with model trains. With the model trains they can build their own rails
and 10 thewonderful world of trains.
( )2. A. help
( )3. A. through
( )4. A. full
( )5. A. seas
( )6. A. water
( )7. A. mend
( )8. A. cook
( )9. A. useful
( )10.A. hate
B. expensive
B. among
B. dirty
B. farm
B. air
B. watch
B. eat
B. polite
B. are afraid of
C. fast
C. during
C. free
C. ground
C. forests
C. reach
C. find
C. bad
C. get on well with
D. empty
D. above
D. busy
D. gardens
D. mountains
D. build
D. pick
D. lucky
D. enjoy
us to find what we need.
Two Stanford University students, David Filo and Jerry Yang started Yahoo in 1994. They started by making a list of
their favourite webpages. When their list got longer, they made a database(数据库) to keep their information. They let
everybody use it for free. Soon, thousands of people began to use their service.
They then made a new kind of software. It could take certain information and arrange it for someone to look at. If you
search for, say, "blue whales", the engine will give you a list of webpages with those words.
Yahoo became a public company in 1996. Filo and Yang, still young men, became rich. As their company grew, they
went on working hard. They improved their software. They also added more services, like shopping, free e-mail, in many
different countries and languages.
Yahoo. com is famous on the Internet. And unlike most other Web companies, Yahoo earns much money in fact.
B. were still university students
C. knew it wasn"t useful
D. were high school students
A. became lazy
B. worked less
C. kept working hard
D. stopped working at Yahoo
B. Search engine.
C. E-mail.
D. Shopping on the Internet.
B. Yahoo is a Web company.
C. Yahoo makes people pay for their e-mail service.
D. Yahoo is losing money.
B. They"re all famous.
C. They"re just like Yahoo.
D. They"re all in English.
In 1826, a Frenchman named Niepce needed pictures for his business. But he was not a good artist.
So he invented a very simple camera, He put it in a window of his house and took a picture of his garden.
That was the first photo.
The next important date in the history of photography was in 1837. That year, Daguerre, another
Frenchman, Look a picture of his reading-room. He used a new kind of camera in a different way. In his
picture you could see everything very clearly, even the smallest thing. The kind of photo was called a
Daguerreotype.
Soon, other people began to use Daguerre"s way. Travelers brought back wonderful photos from all
round the world. People took pictures of famous buildings, cities and mountains.
In about 1840, photography was developed. Then photographers could take pictures of people and
moving things. That was not simple. The photographers had to carry a lot of film and other machines. But
this did not stop them, for example, some in the United States worked so hard.
Mathew Brady was a famous American photographer. He took many pictures of great people. The
pictures were unusual because they were very lifelike (栩栩如生).
Photographers also became one kind of art by the end of the 19th century. Some photos were not just
taken of the real world; they showed ideas and feelings, like other kinds of art.
1. The first photo taken by Niepce was a picture of _____.
A. his business
B. his house
C. his garden
D. his window
2. The Daguerreotype was _____.
A. a Frenchman
B. a kind of picture
C. a kind of camera
D. a photographer
3. If a photographer wanted to take pictures of moving things in the year of 1840, he had to_____.
A. watch lots of films
B. buy an expensive camera
C. stop in most cities
D. take a lot of film and something else with him
4. Mathew Brady _____.
A. was very lifelike
B. was famous for his unusual pictures
C. was quite strong
D. took many pictures of moving people
5. This passage tells us _____.
A. how photography was developed
B. how to show your ideas and feelings in pictures
C. how to take pictures in the world
D. how to use different cameras
or sentences. But if we watch them, we can see that they do have their ways of communicating with each
other.
Can you see the rabbit"s tail? When rabbits see this white tail moving up and down, theyrun away. They
know that they are in danger. The rabbit has told them something without making a sound. It has given
them a signal.
Many other animals use this kind of "language". When a cobra(眼镜蛇) is angry, it raises its head and
makes itself look fierce. This worns other animals. When a bee has found food, it. goes back to its home.
It cannot " tell" the other bees where the food is by speaking tothem, but it does a little dance. This tells the bees where the food is.
Some animals "say" things by making sounds. A dog barks, for example, when a stranger comes near, A
cat purrs(发出呼噜声) when it is pleased. Some birds make several different sounds, each with its own
meaning. Sometimes we human beings speak in the same way. We make a sound like "Oh" or "Ah" when
we are frightened or pleased or when we drop something on our toes.
B. Bees "communicate with each other by dancing.
C. Animals can use words.
D. Animals are brave and friendly.
B. tell other rabbits where the food is
C. make itself look fierce
D. help it to run fast
B. raises its head
C. moves up and down
D. does a little dance
B. bee
C. bird
D. fish
B. all animals
C. some birds
D. human beings
- 1室温时,向稀醋酸中逐滴加入NaOH溶液,正确的是:A.向原醋酸中滴入NaOH溶液,可促进CH3COOH的电离,溶液的pH
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