The “grid” would be like __________, who can perform. your tasks efficiently.
27 Traditionally the power of your computer determines how fast you can access__________.
28 The “grid’’ will enable you to get on your computer the power of _________ in the world.
29 The “grid” would be like __________, who can perform. your tasks efficiently.
30 It is believed that the widespread use of the “grid’’ will become possible in the next________.
A.save electricity by converting unused sunlight into power through the use of photocells
B.waste less electricity by insulating and reducing resistance in the conduits of the power grid
C.increase electrical efficiency by requiring consumers to use appliances that rely on less electricity
D.create a more reliable power grid by supplying electricity from a wider range of power plants
E.reduce the electricity necessary to powering a city by encouraging denser population growth
Suppose you turn on your TV set and see a show
in black and white. Do you switch the channel
although you don't want to watch some "old" movie S1.______
or program? Television broadcasters believe that a
black-and-white show causes many people to do just
then. Color, as any artist knows, adds depth to a S2.______
scene. Cool and muted colors tend to move back, so S3.______
warm, bright colors seem to move forward.
Right now, there's a lot of interest in the tens
of thousands of classic films and TV shows that were
made in black and white, and that's why cable and
satellite broadcasters are interested in the adding S4.______
color to old movies.
It is possible to hand painting the 35-millimeter S5.______
images on the film with the aid of magnifying lenses.
But this would be more too expensive. S6.______
Whereas, the uneven colors and jiggle borders. S7.______
would be a bother to watch.
But now scientists have discovered a way to add
color to film expensively. How? With a computer that S8.______
works very quickly and accurately than human colorists. S9.______
The computer breaks each picture into a grid of
525,000 dots and registers the bright of each dot. S10.______
【S1】
Make a Mummy Tomb
Introduction
Ancient Egyptians believed in life after death. Wealthy Egyptians made careful preparations for their dead by mummifying their bodies and providing them with tombs supplied with equipment, food, clothing, ornaments, furniture, statues of gods, and workers -- everything they would need in their new lives.
Make a replica of an Egyptian tomb complete with a mummy case, wall paintings, and treasures for fun or as a group project. Or choose to make just one tomb treasure or a wall painting. Each part of this Try This! is a project in itself.
Before you begin, consult books about ancient Egypt to get ideas about what tombs were like and what treasures they held.
Make an Egyptian tomb model
By turning a rectangular(长方形的)box on its side, you can create a model tomb. You'll need to decorate the three interior walls with paintings. Ancient Egyptians often painted tombs with scenes of daily life—dancing, hunting, playing, feasting, and working—and the journey into the afterlife.
YOU WILL NEED
books about ancient Egypt
cardboard wooden box that measures at least 12 to 14 inches (30 to 36 centimeters) long and 9 to 10 inches (23 to 25 centimeters) wide
ruler
pencil
drawing paper
watercolor paints or felt-tip markers
fine-tipped paintbrush
white glue
OPTIONAL
one cup (230 milliliters) flour
2/3 cup (156 milliliters) water
large bowl
spoon
strips of newspaper
Here's How
1. Find a cardboard or wooden box and turn it on its side. The bottom of the box will form. the long back "wall" of your tomb. Tear off any flaps. Then measure the walls of your tomb.
2. Cut pieces of drawing paper to fit the three different walls of your tomb.
3. Make a grid of squares across each sheet with a ruler. Egyptian draftsmen scored tomb walks in a grid pattern before artists started drawing. This helped the artists compose their work and make it exact.
4.On each sheet draw your picture and use the grid to help you form. rows of hieroglyphs(象形文字).
5.Erase extra lines that don't form. part of your drawing, and then paint your scene. Let your painting dry.
6.Optional: Mix the flour and water together in a bowl. Dip the newspaper strips into the mix and add one layer around the outside top and sides of your box. Let this dry. Then paint the outside of your box a sandy color. The walls' roughness will make it look like your tomb was formed from reek.
7. Once your box is dry, glue your drawings to the walls of your tomb.
Make a mummy case
A mummy was often placed in one or more mummy cases to help protect it. Sometimes mummy cases were placed into sarcophaguses (石棺). The cases displayed a portrait of the dead person, images of Egyptian gods, and hieroglyphic writing. Make one for your model tomb.
YOU WILL NEED
books about ancient Egypt and New Kingdom mummy cases
pencil
sheet of cardboard
scissors
masking tape
one cup (230 milliliters) flour
2/3 cup (156 milliliters) water
large bowl
spoon
two or three sheets of white paper towels
white glue
paintbrushes
acrylic (丙烯酸的) paints
Hint: Do this project in stages over three or four days. Allow time for the papier-mache to dry completely.
Here's How
1 .Print pattern screens one and two. Cut the shapes out. You should have a lid, a bottom, and two narrow strips that will be the sides of the case.
A.Y
B.N
C.NG