From 8:30pm to 9:30 pm on Saturday, March 26th, 2011, a great number of people around the
world turned off the lights for Earth Hour. It is a bit like an environmental New Year, providing a
chance to help care for our earth and make people around the world learn how important it is to do
that.
What can do during this hour? We can do lots of run things in the dark, such as planning a
candlelight dinner for our family or a group of friends, telling stories and singing songs with the
kids and neighbors.
What did you do for Earth Hour this year? Let"s share the Earth Hour stories. | 
Emma
I was on one of the mountains near the city and took photos of my city. It was great to
watch the stars and the moon after a busy day so that I could enjoy this relaxing moment. | 
Albert
I work as a waiter in a restaurant. Our restaurant was still open even for Earth Hour as we got lots
of reservations (预定) that night. So we spent the hour working by candlelight. And guess what? Our
customers loved that and promised to come for next Earth Hour. |
Brandon
I turned off the main power to my house and went for a walk for Earth Hour. It was a little
strange to walk in the dark, but it was only for one hour. Just think of what it must have been
like before the invention of the light bulb! | 
Mary
I invited my friends who know and support Earth Hour activities. We actually had a candlelight
concert and we talked about the old happy days that we spent together in college. | | 完形填空。 | The bell for class rang. All the students took out their 1 , waiting for the teacher. Our Chinese teacher,
Miss Liu, had told us before that we were going to write a composition 2 class. A minute passed, and
another, 3 the teacher didn"t appear. We began to wonder what was the matter with her. Was she ill? Or
had she forgotten about the class? 4 could tell. Soon some students began to study other subjects, some
students began to talk and even made 5 . About ten minutes later, the door opened and Miss Liu 6 came in,
smiling. She didn"t say sorry to the class. We felt 7 angry. The teacher often told us never to be late for class
and said it was 8 manners to be late. She also said that if we were late, we should make an apology (道歉)
9 at once or after class. But now she was late and had kept the whole class waiting for such a long time
and didn"t even tell us the reason. It was unfair. At this moment, Miss Liu picked up a piece of chalk (粉笔)
and 10 "Teacher Is Late" on the blackboard and said that was the topic of our composition today. All of us
smiled and understood what the teacher meant. | ( )1. A. desks
( )2. A. at
( )3. A. but
( )4. A. Somebody
( )5. A. voices
( )6. A. at last
( )7. A. little
( )8. A. good
( )9. A. neither
( )10. A. read
| B. seats
B. in
B. and
B. Everybody
B. sounds
B. at first
B. less
B. bad
B. not only
B. wrote
| C. books
C. on
C. or
C. Anybody
C. noises
C. at all
C. a little
C. nice
C. both
C. spoke
| D. chairs
D. to
D. so
D. Nobody
D. notes
D. at times
D. much more
D. fine
D. either
D. said
| | 阅读理解。 | Cars are lots of fun, but they could also be dangerous. We have to be careful when we drive them or
ride in them.
It"s always a good idea to put on your seat belt when you"re in a car. Why? Think about this example:
You put an egg on a skateboard and give it a push. If the skateboard hits a stone, it will stop, but the egg
won"t. It will fly through the air, hit the ground and break.
Now, think what would happen if you tied the egg to the skateboard. When the skateboard hits a stone,
the egg won"t go flying; it will stay safely on the skateboard.
Volvo, a famous Swedish carmaker, was the first to use seat belts in 1849.
Air bags are also very important for car safety, because sometimes a seat belt isn"t enough. If the car is
going really fast and runs into something, seat belts could even hurt the people who wear them. Most new
cars have air bags in front of and next to the seats. When a car hits something, its air bags will come out
quickly in less than one second to keep the people inside safe. | | 1. The passage mainly tells us ________. | A. two important ways to keep safe in cars
B. how air bags work to make cars safe
C. how seat belts work to make cars safe
D. why we must tie the egg to the skateboard | | 2. The writer gives the example of the egg to ________. | A. tell us that eggs are easy to break
B. show how to wear a seat belt
C. show why it"s important to wear a seat belt in a car
D. tell us what a skateboard is | | 3. Seat belts can make us safer because ________. | A. we are interested in them
B. they can stop us from hitting other cars
C. they can help us stay safely on the seats
D. they are made of strong materials | | 4. Air bags are important for cars because ________. | A. they are made of plastic
B. they can also help us to keep safe in a car
C. they can keep cars running slowly
D. they are put in front of and next to the seats | | 5. Which of the following is TRUE according to this passage? | A. It won"t be dangerous if there are seat belts or air bags in a car.
B. Now most of new cars still have only one air bag.
C. When a car hits something, its air bags will come out a few minutes later.
D. Volvo was the first to use seat belts. | | 完形填空。 | Different things usually stand for different feelings. Red, for example, is the color of fire, heat, blood and
life. People say red is an exciting and active color. They associate red with a strong feeling like 1 . Red is
used for signs of 2 , such as STOP signs and fire engines. Orange is the bright, warm color of 3 in autumn.
People say orange is a 4 color. They associate orange with happiness. Yellow is the color of 5 . People say
it is a cheerful color. They associate yellow too, with happiness. Green is the cool color of grass in 6 . People
say it is a refreshing color. In general, people 7 two groups of colors: warm colors and cool colors. The
warm colors are red, orange and 8 . Where there are warm color and a lot of light, people usually want to
be 9 . Those who like to be with 10 like red. The cool colors are 11 and blue. Where are these colors,
people are usually worried. Some scientists say that time seems to 12 more slowly in a room with warm
colors. They suggest that a warm color is a good 13 for a living room or a 14 . People who are having a
rest or are eating do not want time to pass quickly. 15 colors are better for some offices if the people
working there want time to pass quickly. | ( )1. A. sadness
( )2. A. roads
( )3. A. land
( )4. A. lively
( )5. A. moonlight
( )6. A. summer
( )7. A. speak
( )8. A. green
( )9. A. calm
( )10. A. the other
( )11. A. black
( )12. A. go round
( )13. A. one
( )14. A. factory
( )15. A. Different | B. anger
B. ways
B. leaves
B. dark
B. light
B. spring
B. say
B. yellow
B. sleepy
B. another
B. green
B. go by
B. way
B. classroom
B. Cool | C. administration
C. danger
C. grass
C. noisy
C. sunlight
C. autumn
C. talk about
C. white
C. active
C. other one
C. golden
C. go off
C. fact
C. restaurant
C. Warm | D. smile
D. places
D. mountains
D. frightening
D. stars
D. winter
D. tell
D. gray
D. helpful
D. others
D. yellow
D. go along
D. matter
D. hospital
D. All | | 阅读理解。 | Have you ever rubbed your hands together when they get cold? Why do we do that? We do that for
friction. Friction happens when two things that aren"t very smooth rub together to make heat energy. The
faster you rub two things together, the more friction (and heat) you can make. Let"s discover friction! | WHAT YOU"LL NEED:
● Soap ● Water ● Your hands!
WHAT TO DO:
1. Make sure your hands are dry.
2. Rub your hands together until you feel the heat of your hands.
3. Now, use soap and water to get your hands very slippery (滑的).
4. Try to make friction happen while your hands are slippery.
5. Please write down what has happened.
LET"S TALK!
Friction is an energy that happens when two things rub together. When friction happens,
it makes heat! When your hands are slippery, they won"t make very much friction and your
hands won"t get so hot.
DID YOU KNOW?
1. Friction happens when you stop your fast running bike.
2. Ancient people made fires by rubbing two pieces of wood together. Friction happened
though they didn"t know it.
_________
Friction is everywhere. Have you ever noticed situations where friction is happening?
If not, ask your parents to take you out in a car. If it is not too hot, touch the tires (轮胎)
of the car before and after a short drive to see how much warmer they get from friction. |
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