Can dolphins talk?Maybe they can’t talk with words, but they talk with sounds．They show their feelings with sounds．
Dolphins travel in a group．We call a group of fish a school．They don’t study, but they travel together．Dolphins are mammals(哺乳动物)，not fish, but they swim together like fish in a school．Dolphins talk to the other dolphins in the school．They give information．They tell when they are happy or sad or afraid．They say‘welcome’ when a dolphin comes back to the school．They talk when they play．
They make a few sounds above water．They make many more sounds under water．People cannot hear these sounds because they are very, very high．Scientists make tapes of the sounds and study them．
Sometimes people catch a dolphin for a large aquarium(水族馆)。People can watch the dolphins in a show．Dolphins don’t like to be away from their school in an aquarium．They are sad and lonely
There are many stories about dolphins．They help people．Sometimes they save somebody’s life．Dolphin meat is good, but people don’t like to kill them．They say that dolphins bring good luck．
(1)
The word“school”means ________．
[ ]
A．
a place for students to study
B．
a special kind of animals
C．
a group of fish traveling together
D．
a place for training dolphins
(2)
A dolphin makes a sound to ________．
[ ]
A．
show other dolphins they are happy
B．
tell other dolphins they are sad
C．
let people know they are afraid
D．
give information to other dolphins
(3)
People can’t hear dolphins’ sounds under the water ________．
You will have a lot of reading to do in this grade this year．You can do more of it in less time if you learn to read rapidly．
Perhaps you have been told about some habits (习惯) which keep a person from reading fast and have been strongly asked to break those habits which you might have．
Do you still have any of these bad habits?Check yourself by answering“yes”or“no”to these questions．
(1) Do you move your lips (嘴唇) when reading silently?
(2) Do you point to words with your finger as you read?
(3)Do you move your head from side to side as you read?
(4)Do you read one word at a time?
If you answer“yes”to any of these questions,start at once to break the habit．If you move your tips，hold your fingers over them，or hold a piece of paper be-tween your lips while you are reading．Then if your lips move，your will know it and can stop them．
If you point to words，hold the two sides of your book，one side with your left hand，the other side with your right hand．Then you won't have a free finger to use in pointing while reading．If you move your head，place your chin (下巴) in one hand and hold your head still (静止不动的)．
If you read no more than one or two or three words at a time，you need to work very hard in learning to take in (吸收) more words at each glance (一瞥) as your eyes travel across the lines of words．
Even if you do rather fast now，you can learn to read even faster．As you probably have been told，the secret of fast reading is to take in whole groups of words as each glance．Read in through groups and force (迫使) your eyes along the lines of words as fast as you can to make them go．Anyone who practices doing these things will he able to read faster．
(1)
You may hold your fingers over your lips while reading so as ______．
A．to tell others to be silent
B．to feel whether your lips move or not
C．to hold a piece of paper between them
D．to keep yourself from talking to others
[ ]
(2)
When you read，______．
A．don't keep your head still
B．don't hold your books with your hands
C．don't stand up near a desk
D．don't use your finger to point to words
[ ]
(3)
If you learn to read fast，______．
A．you can read more in less time
B．you can write faster
C．you can understand better
D．you can read less in more time
[ ]
(4)
You must _______ those habits that we are talking about in this reading．
