阅读理解。
Some dogs help people to look after sheep, other dogs help them to find the lost children.
And some of the dogs can help the blind (盲人).
There is a kind of dog. His name is Seeing Eye dog. Now we can see this kind of dog all
over the world. They are working for the blind. The Seeing Eye dog is strong and easy to train
(训练). He helps the blind to walk from place to place. Before a dog becomes a Seeing Eye dog,
he must go to a training school for about three months. First, the dog has to learn to sit or
stay when he hears the trainer"s call. In his next lesson, the dog learns to take his trainer
(训练员) across busy streets. The dog has many things to learn. At the end of the training school,
he must take tests (测试). When he passes (通过) the test, the Seeing Eye dog will do things by
himself.
Now he can help the blind people. The new master may be a man, a woman, or even a child. It
takes the dog and his blind master about a month to learn to work and live together.
B. only in small cities
C. all over the world
D. only in America
—______.
B. Find the lost children.
C. Look after sheep.
D. Do anything.
B. go to a middle school
C. go to a training school
D. go to an evening school
B. when he hears the doorbell
C. when he hears the trainer"s call
D. when he saw the people
— ______.
A. One year
B. About a month
C. Five weeks
D. Ten days
1.C 2. A 3.C 4.C 5.B
barking, your own breathing and lots of other things.
But what is sound? Sound happens when something vibrates (振动) or shakes. We can make something
vibrate by hitting it. Try this experiment (实验). Put your ruler on your desk so that part of it sticks out
(伸出) over the edge. Put your hand on the part of the ruler that is on the desk. Now pull the part that is
sticking out over the edge down, and then let it go.
The part you let go will vibrate. It will move up and down very quickly, and give out sound. The part
of the ruler sticking out over the edge of the desk produced the sound. If you make that part longer, you
will hear a lower sound. When you shorten it, you will hear a higher sound. Why does this happen?
When you shorten the ruler, it will vibrate more quickly. When something vibrates more quickly it
produces a higher sound. If you lengthen the ruler, it will vibrate more slowly. When something vibrates
more slowly, it produces a lower sound.
1. How does sound happen?
________________________________________________________
2. How can we make something vibrate?
________________________________________________________
3. Can we hear a higher sound or a lower sound if we make the part of the ruler sticking out over the edge
of the desk longer?
________________________________________________________
4. What does the word"lengthen" mean in Chinese?
________________________________________________________
5. What"s the best title of the passage?
_________________________________________________________
Everybody has a home.People have homes. Animals have homes. People live in many different kinds of
houses. Animals have different kinds of homes, too.
Some animals live in holes (洞) under the ground. The woodchuck (土拨鼠) lives under the ground. His
home has two doors. If any animal comes into one door, the woodchuck goes out through the other. Some
animals live in holes in trees. Some squirrels (松鼠) build nests (窝) high in trees. Most of the birds live in
nests in trees. But hawks (鹰) build their nests high in the mountains (山).
B. some people
C. some animals
D. the homes of some animals
B. All the woodchucks
C. All the squirrels
D. All the birds
B. Two
C. Three.
D. None.
B. the same
C. in holes
D. in trees
A. holes
B. trees
C. different kinds of houses
D. mountains
April, may, June, July, August, September, October, November, December. Each month has thirty days
or thirty-one days. In a leap-year (闰年), February has twenty-nine days. A leap year comes once in
four years. There are 365 days in a year. There are seven days in a week. They are Sunday, Monday,
Tuesday, Wednesday, Thursday, Friday, Saturday. The parts of the day are morning, afternoon, evening
and night. April, June, September and November have thirty days. All the rest have thirty-one days, except
February alone.
B. Every month except February.
C. February in each leap-year.
D. February in every year.
B. Yes, they are.
C. No, it isn"t.
D. No, they aren"t.
B. Friday.
C. Saturday.
D. Tuesday.
B. 365.
C. 12.
D. 29.
B. 365.
C. 366.
D. 367.
are sent by air. You send a letter by air so that your friend may receive it sooner. A letter takes about twelve
days to go from England to India by train and by ship. A letter can get to India by air in five days now, but
soon the time may be made shorter. At first, people were afraid to send letters by air. They thought that the
plane may fall and their friends may not receive the letters. So they sent two letters, one by air and the other
by train or ship. They wanted to make sure that the letter would be received. Planes are now almost as safe
and sure as trains or ships. More and more letters are sent by air.
B. only by ship
C. only by train
D. by plane
A. as fast as
B. much slower than
C. not as safe as
D. faster than
B. fifteen
C. twelve
D. ten
by air or by train and by air at the same time.
B. two different letters
C. some letters
D. two same letters
B. Planes are as safe as ships and trains.
C. Now people send all letters by air.
D. Now people send letters in different ways.
Strange, but the green sea turtle (小海龟) is not that green. It"s certainly not as green as a tree. In fact,
its shell (壳) is nearly black or brown. The largest hard-shelled sea turtle is between 200 and 300 pounds
heavy and a shell is between 36 and 43 inches (英寸) long. But its head is smaller than other turtles.
Little baby green sea turtles are only two inches long. As the turtle grows up, its shell keeps mostly
black while the body turns orange or brown. Young turtles like living in the sea, especially in areas with lots
of sea grasses.
Green sea turtle, like all sea turtles, are very different from land or river turtles. All sea turtles can swim
through the water faster. Instead of feet for walking, sea turtles have flippers (鳍状肢) which are better for
swimming. The flippers aren"t much good on land, however, and walking is hard for a sea turtle because
they are usually big and heavy.
Another interesting thing about a sea turtle"s flippers is that they cannot be pulled into their shells. Land
turtles can pull their feet into their shells for protection, but a sea turtle can"t.
____________________________________________________________
2. 请把画线部分翻译成中文。
____________________________________________________________
3. Why is walking hard for green turtles?
____________________________________________________________
4. 写出"Green sea turtles are very different from land or river turtles." 的同义句。
____________________________________________________________
5. What is the interesting difference between sea turtles and land turtles?
____________________________________________________________
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